using CheckersApi.Contracts;
using CheckersApi.Engine;
using CheckersApi.Validation;
using CheckersApi.Logging;
using Microsoft.AspNetCore.Mvc;

namespace CheckersApi.Controllers;

[ApiController]
[Route("v1/move")]
public class MoveController : ControllerBase
{
    private readonly IEngineAdapter _engine;
    private readonly ILogger<MoveController> _logger;

    public MoveController(IEngineAdapter engine, ILogger<MoveController> logger)
    {
        _engine = engine;
        _logger = logger;
    }

    [HttpPost("suggest")]
    public IActionResult Suggest([FromBody] SuggestRequest request)
    {
        if (request?.State?.Position is null)
            return BadRequest(new { error = "State.Position is required" });

        // генеруємо requestId для логів
        var requestId = Guid.NewGuid().ToString("N")[..8];

        // Normalize then validate per TЗ
        var pdn = PdnNormalizer.Normalize(request.State.Position);
        if (!PdnValidator.IsValid(pdn))
            return UnprocessableEntity(new { error = "Invalid PDN format" });

        // Hard timeout (controller-level)
        var hardMs = request.Limits?.HardTimeMs ?? 1200;
        using var cts = CancellationTokenSource.CreateLinkedTokenSource(HttpContext.RequestAborted);
        cts.CancelAfter(hardMs);

        try
        {
            // Ensure normalized PDN is used for cache keys and adapter
            request.State.Position = pdn;

            var response = _engine.Suggest(request, cts.Token);

            // логуємо результат в json
            RequestLogger.LogRequest(
                _logger,
                requestId,
                response.Info?.TimeMs ?? 0,
                response.Depth,
                response.Nodes,
                response.Info?.TablebaseHit ?? false
            );

            return Ok(response);
        }
        catch (OperationCanceledException)
        {
            return StatusCode(504, new { error = "Timeout" });
        }
        catch (AccessViolationException ex)
        {
            _logger.LogError(ex, "Native engine crash (0xC0000005) - KingsRow engine is unstable. Consider using Chinook instead.");
            return StatusCode(500, new { error = "Engine crashed: KingsRow is unstable. Try Chinook instead.", details = ex.Message });
        }
        catch (ArgumentException ex)
        {
            return UnprocessableEntity(new { error = ex.Message });
        }
        catch (InvalidOperationException ex)
        {
            return StatusCode(500, new { error = ex.Message });
        }
    }

    [HttpPost("validate")]
    public IActionResult Validate([FromBody] ValidateMoveRequest request)
    {
        if (request is null)
            return BadRequest(new { error = "Invalid request" });

        var pdn = PdnNormalizer.Normalize(request.Position ?? "");
        if (!PdnValidator.IsValid(pdn))
            return UnprocessableEntity(new { error = "Invalid PDN format" });

        var legal = MoveValidator.IsLegalFormat(request.Move ?? "");
        return Ok(new { legal });
    }
}

using CheckersApi.Contracts;
using CheckersApi.Validation;
using System;
using System.Diagnostics;
using System.Text;
using System.Threading;

namespace CheckersApi.Engine
{
    public class KingsRowAdapter : IEngineAdapter
    {
        private readonly string _exePath;
        private readonly string _dbPath;

        public KingsRowAdapter(string exePath, string dbPath)
        {
            _exePath = exePath;
            _dbPath = dbPath;
        }

        public SuggestResponse Suggest(SuggestRequest request, CancellationToken ct)
        {
            var pdn = PdnNormalizer.Normalize(request.State.Position);

            var psi = new ProcessStartInfo
            {
                FileName = _exePath,
                Arguments = $"--db \"{_dbPath}\" --pdn \"{pdn}\"",
                RedirectStandardOutput = true,
                RedirectStandardError = true,
                UseShellExecute = false,
                CreateNoWindow = true,
                StandardOutputEncoding = Encoding.UTF8
            };

            using var proc = new Process { StartInfo = psi };
            proc.Start();

            string output = proc.StandardOutput.ReadToEnd();
            string error = proc.StandardError.ReadToEnd();

            proc.WaitForExit();

            if (!string.IsNullOrWhiteSpace(error))
                throw new InvalidOperationException($"KingsRow error: {error}");

            var bestMove = ParseBestMove(output);

            return new SuggestResponse
            {
                Engine = "kingsrow-process",
                BestMove = bestMove,
                PositionKey = PdnNormalizer.ToPositionKey(pdn),
                Depth = request.Limits?.MaxDepth ?? 8,
                Nodes = 0,
                Info = new SuggestInfo
                {
                    TablebaseHit = bestMove.Contains("TB"),
                    TimeMs = 0,
                    Evaluation = 0
                }
            };
        }

        private static string ParseBestMove(string output)
        {
            foreach (var line in output.Split('\n'))
            {
                if (line.StartsWith("bestmove", StringComparison.OrdinalIgnoreCase))
                    return line.Replace("bestmove", "").Trim();
            }
            return string.Empty;
        }
    }
}

using System;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using Microsoft.Extensions.Configuration;

namespace CheckersApi.Engine
{
    internal static class KingsRowBootstrap
    {
        private static bool _initialized;
        private static readonly object _lock = new();

        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool SetDllDirectory(string lpPathName);

        public static void Initialize(IConfiguration cfg)
        {
            if (_initialized) return;

            lock (_lock)
            {
                if (_initialized) return;

                if (IntPtr.Size != 8)
                    throw new BadImageFormatException("Kingsrow64.dll requires x64 process");

                var egdbDir = cfg["Engine:DllDirEgdb"] ?? throw new InvalidOperationException("Engine:DllDirEgdb not configured");
                var enginesDir = cfg["Engine:DllDirKingsRow"] ?? throw new InvalidOperationException("Engine:DllDirKingsRow not configured");
                var dbPath = cfg["Engine:Databases"] ?? "";

                if (!Directory.Exists(egdbDir))
                    throw new DirectoryNotFoundException($"EGDB dir not found: {egdbDir}");
                if (!Directory.Exists(enginesDir))
                    throw new DirectoryNotFoundException($"KingsRow engines dir not found: {enginesDir}");

                SetDllDirectory(enginesDir);

                var egdbPath = Path.Combine(egdbDir, "egdb64.dll");
                var krPath = Path.Combine(enginesDir, "Kingsrow64.dll");

                var egdbHandle = LoadExact(egdbPath);
                var krHandle = LoadExact(krPath);

                var useInit = bool.TryParse(cfg["Engine:UseInit"], out var ui) ? ui : true;
                if (useInit && !string.IsNullOrWhiteSpace(dbPath))
                {
                    if (!Directory.Exists(dbPath))
                        throw new InvalidOperationException($"Tablebase directory not found: {dbPath}");

                    var hasCpr = Directory.EnumerateFiles(dbPath, "*.cpr1").Any();
                    var hasIdx = Directory.EnumerateFiles(dbPath, "*.idx1").Any();
                    if (!hasCpr || !hasIdx)
                        throw new InvalidOperationException($"No tablebase files (*.cpr1/*.idx1) in: {dbPath}");

                    var currentPath = Environment.GetEnvironmentVariable("PATH") ?? string.Empty;
                    if (!currentPath.Split(';', StringSplitOptions.RemoveEmptyEntries)
                        .Any(p => string.Equals(p, dbPath, StringComparison.OrdinalIgnoreCase)))
                    {
                        Environment.SetEnvironmentVariable("PATH", $"{dbPath};{currentPath}");
                    }

                    Environment.SetEnvironmentVariable("EGDB_PATH", dbPath);
                }

                NativeKingsRow.BindOnce(krHandle);

                // Warm‑up
                try
                {
                    _ = NativeKingsRow.ProtocolVersion();
                    _ = NativeKingsRow.EngineCommand("about", 1024);
                }
                catch { }

                _initialized = true;
            }
        }

        private static IntPtr LoadExact(string fullPath)
        {
            if (!File.Exists(fullPath))
                throw new DllNotFoundException($"Required DLL missing: {fullPath}");

            var handle = NativeLibrary.Load(fullPath);
            if (handle == IntPtr.Zero)
                throw new DllNotFoundException($"Failed to load: {fullPath}");

            return handle;
        }
    }
}

using System;
using System.Runtime.InteropServices;
using System.Text;

namespace CheckersApi.Engine
{
    internal static class NativeKingsRow
    {
        private static readonly object s_lock = new();
        private static bool s_bound;
        private static IntPtr s_module;

        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
        private delegate IntPtr enginename_delegate();
        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
        private delegate int protocolversion_delegate();
        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
        private delegate int staticevaluation_delegate(IntPtr pdn);
        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
        private delegate int getmove_delegate(IntPtr pdn, IntPtr buffer, int capacity);
        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
        private delegate int enginecommand_delegate(IntPtr cmd, IntPtr buffer, int capacity);

        private static enginename_delegate? s_enginename;
        private static protocolversion_delegate? s_protocolversion;
        private static staticevaluation_delegate? s_staticevaluation;
        private static getmove_delegate? s_getmove;
        private static enginecommand_delegate? s_enginecommand;

        public static void BindOnce(IntPtr module)
        {
            if (s_bound) return;
            lock (s_lock)
            {
                if (s_bound) return;
                if (module == IntPtr.Zero)
                    throw new DllNotFoundException("Kingsrow64.dll module handle is null");

                s_module = module;
                s_enginename = GetExport<enginename_delegate>(s_module, "enginename");
                s_protocolversion = GetExport<protocolversion_delegate>(s_module, "protocolversion");
                s_staticevaluation = GetExport<staticevaluation_delegate>(s_module, "staticevaluation");
                s_getmove = GetExport<getmove_delegate>(s_module, "getmove");
                s_enginecommand = GetExport<enginecommand_delegate>(s_module, "enginecommand");
                s_bound = true;
            }
        }

        private static T GetExport<T>(IntPtr module, string name) where T : Delegate
        {
            var addr = NativeLibrary.GetExport(module, name);
            return Marshal.GetDelegateForFunctionPointer<T>(addr);
        }

        private static void EnsureBound()
        {
            if (!s_bound)
                throw new InvalidOperationException("NativeKingsRow not bound—call KingsRowBootstrap.Initialize first.");
        }

        public static string EngineName()
        {
            EnsureBound();
            lock (s_lock)
            {
                var ptr = s_enginename!.Invoke();
                return ptr == IntPtr.Zero ? "KingsRow" : (Marshal.PtrToStringAnsi(ptr) ?? "KingsRow");
            }
        }

        public static int ProtocolVersion()
        {
            EnsureBound();
            lock (s_lock) { return s_protocolversion!.Invoke(); }
        }

        public static int StaticEvaluation(string pdn)
        {
            EnsureBound();
            IntPtr pdnPtr = Marshal.StringToHGlobalAnsi(pdn);
            try { lock (s_lock) { return s_staticevaluation!.Invoke(pdnPtr); } }
            finally { Marshal.FreeHGlobal(pdnPtr); }
        }

        public static (int rc, string reply) EngineCommand(string command, int capacity = 1024)
        {
            EnsureBound();
            IntPtr cmdPtr = Marshal.StringToHGlobalAnsi(command);
            IntPtr buf = AllocZero(capacity);
            try
            {
                int rc;
                lock (s_lock) { rc = s_enginecommand!.Invoke(cmdPtr, buf, capacity); }
                var reply = rc == 0 ? ReadAnsi(buf, capacity) : string.Empty;
                return (rc, reply);
            }
            finally
            {
                Marshal.FreeHGlobal(cmdPtr);
                Marshal.FreeHGlobal(buf);
            }
        }

        public static (int rc, string move) CallGetMoveAscii(string pdn, int capacity = 16384)
        {
            EnsureBound();
            try
            {
                lock (s_lock) { _ = s_protocolversion!.Invoke(); }
                _ = EngineCommand("about", 512);
            }
            catch { }

            IntPtr pdnPtr = Marshal.StringToHGlobalAnsi(pdn);
            IntPtr buf = AllocZero(capacity);
            try
            {
                int rc;
                lock (s_lock) { rc = s_getmove!.Invoke(pdnPtr, buf, capacity); }
                if (rc != 0) return (rc, string.Empty);
                return (rc, ReadAnsi(buf, capacity).Trim());
            }
            finally
            {
                Marshal.FreeHGlobal(pdnPtr);
                Marshal.FreeHGlobal(buf);
            }
        }

        private static IntPtr AllocZero(int size)
        {
            var p = Marshal.AllocHGlobal(size);
            unsafe { new Span<byte>((void*)p, size).Clear(); }
            return p;
        }

        private static string ReadAnsi(IntPtr buf, int capacity)
        {
            var bytes = new byte[capacity];
            Marshal.Copy(buf, bytes, 0, capacity);
            int len = Array.IndexOf<byte>(bytes, 0);
            if (len < 0) len = capacity;
            return Encoding.ASCII.GetString(bytes, 0, len);
        }
    }
}

using CheckersApi.Contracts;
using CheckersApi.Validation;
using System;

namespace CheckersApi.Engine
{
    public class NativeKingsRowAdapter : IEngineAdapter
    {
        private readonly string _dbPath;

        public NativeKingsRowAdapter(string dbPath)
        {
            _dbPath = dbPath;
        }

        public SuggestResponse Suggest(SuggestRequest request, CancellationToken ct)
        {
            // Нормалізуємо PDN
            var pdn = PdnNormalizer.Normalize(request.State.Position);

            // Викликаємо KingsRow для отримання ходу
            var (rc, move) = NativeKingsRow.CallGetMoveAscii(pdn, capacity: 16384);
            if (rc != 0 || string.IsNullOrWhiteSpace(move))
                throw new InvalidOperationException($"KingsRow DLL failed (rc={rc}) to return move");

            // Виконуємо статичну оцінку позиції
            int eval = 0;
            try { eval = NativeKingsRow.StaticEvaluation(pdn); } catch { }

            return new SuggestResponse
            {
                Engine = "kingsrow-native",
                BestMove = move,
                PositionKey = PdnNormalizer.ToPositionKey(pdn),
                Depth = request.Limits?.MaxDepth ?? 8,
                Nodes = 0,
                Info = new SuggestInfo
                {
                    TablebaseHit = IsTablebaseHit(move),
                    TimeMs = 0,
                    Evaluation = eval
                }
            };
        }

        private static bool IsTablebaseHit(string move)
        {
            var m = move.ToLowerInvariant();
            return m.Contains("tb") || m.Contains("wld") || m.Contains("dtw");
        }
    }
}

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*",
  "Engine": {
    "Type": "kingsrow",
    "DllDirEgdb": "C:\\Program Files (x86)\\CheckerBoard",
    "DllDirKingsRow": "C:\\Program Files (x86)\\CheckerBoard\\engines",
    "Databases": "C:\\kr_english_wld",
    "UseInit": true
  },
  "Cache": {
    "Capacity": 20000,
    "TtlMinutes": 15
  },
  "Limits": {
    "DefaultSoftTimeMs": 300,
    "DefaultHardTimeMs": 1200
  }
}

'CheckersApi.exe' (CoreCLR: DefaultDomain): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Private.CoreLib.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'A:\Documents\CheckersApi\bin\Debug\net9.0\CheckersApi.dll'. Symbols loaded.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Runtime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'c:\program files\microsoft visual studio\18\community\common7\ide\extensions\microsoft\managedprojectsystem\HotReload\net6.0\Microsoft.Extensions.DotNetDeltaApplier.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Linq.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Runtime.Loader.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Console.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Collections.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Runtime.InteropServices.RuntimeInformation.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Collections.Concurrent.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.IO.Pipes.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Threading.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Runtime.InteropServices.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Threading.Overlapped.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Security.AccessControl.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Security.Principal.Windows.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Security.Claims.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'c:\program files\microsoft visual studio\18\community\common7\ide\extensions\microsoft\managedprojectsystem\HotReload\net6.0\Microsoft.AspNetCore.Watch.BrowserRefresh.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'c:\program files\microsoft visual studio\18\community\common7\ide\extensions\microsoft\web tools\projectsystem\net7.0\Microsoft.WebTools.ApiEndpointDiscovery.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\Microsoft Visual Studio\18\Community\Common7\IDE\Extensions\Microsoft\Web Tools\Browser Link\Microsoft.WebTools.BrowserLink.Net.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Hosting.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.DependencyInjection.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Logging.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Diagnostics.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Configuration.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Http.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Routing.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.ComponentModel.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Features.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Mvc.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Mvc.Core.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Mvc.ApiExplorer.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'A:\Documents\CheckersApi\bin\Debug\net9.0\Swashbuckle.AspNetCore.SwaggerGen.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Caching.Memory.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Options.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Cors.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Configuration.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Primitives.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Authorization.Policy.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Hosting.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'A:\Documents\CheckersApi\bin\Debug\net9.0\Swashbuckle.AspNetCore.Swagger.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'A:\Documents\CheckersApi\bin\Debug\net9.0\Swashbuckle.AspNetCore.SwaggerUI.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\Microsoft Visual Studio\18\Community\Common7\IDE\PrivateAssemblies\Runtime\Microsoft.VisualStudio.Debugger.Runtime.NetCoreApp.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Hosting.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Hosting.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Configuration.EnvironmentVariables.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.FileProviders.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.FileProviders.Physical.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Configuration.FileExtensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Logging.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Diagnostics.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Diagnostics.DiagnosticSource.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Configuration.Binder.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Configuration.Json.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Memory.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.IO.FileSystem.Watcher.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.ComponentModel.Primitives.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\Microsoft.Win32.Primitives.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Text.Json.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Text.Encoding.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Configuration.UserSecrets.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Logging.EventLog.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Logging.Configuration.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Options.ConfigurationExtensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Logging.Console.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Logging.Debug.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Logging.EventSource.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Diagnostics.Tracing.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.DependencyInjection.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Server.Kestrel.Core.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Server.Kestrel.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Server.Kestrel.Transport.Quic.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Server.Kestrel.Transport.NamedPipes.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Net.Quic.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Net.Sockets.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Net.Primitives.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\Microsoft.Win32.Registry.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Server.IIS.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Server.IISIntegration.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Http.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Mvc.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Connections.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Hosting.Server.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.ObjectPool.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.HostFiltering.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.HttpOverrides.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Routing.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.ObjectModel.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Numerics.Vectors.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Authentication.Core.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Authentication.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Authorization.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Mvc.Cors.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Mvc.DataAnnotations.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'A:\Documents\CheckersApi\bin\Debug\net9.0\Microsoft.OpenApi.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Caching.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Extensions.Localization.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Mvc.Razor.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Http.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Threading.Thread.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\System.Diagnostics.EventLog.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Collections.Specialized.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.ComponentModel.TypeConverter.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.IO.Pipelines.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Threading.ThreadPool.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Reflection.Emit.Lightweight.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Reflection.Emit.ILGeneration.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Reflection.Primitives.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Text.Encodings.Web.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Runtime.Intrinsics.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.Net.Http.Headers.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Http.Features.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Private.Uri.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Linq.Expressions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Runtime.Numerics.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Text.RegularExpressions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Net.Http.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.ComponentModel.Annotations.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Metadata.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Microsoft.AspNetCore.Watch.BrowserRefresh.BlazorWasmHotReloadMiddleware: Debug: Middleware loaded
Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserScriptMiddleware: Debug: Middleware loaded. Script /_framework/aspnetcore-browser-refresh.js (16507 B).
Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserScriptMiddleware: Debug: Middleware loaded. Script /_framework/blazor-hotreload.js (799 B).
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.IO.MemoryMappedFiles.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Runtime.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Diagnostics.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Authentication.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.StaticFiles.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Collections.Immutable.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'Anonymously Hosted DynamicMethods Assembly'. 
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.Diagnostics.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware: Debug: Middleware loaded: DOTNET_MODIFIABLE_ASSEMBLIES=debug, __ASPNETCORE_BROWSER_TOOLS=true
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Security.Cryptography.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Collections.NonGeneric.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Net.Security.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Microsoft.Hosting.Lifetime: Information: Now listening on: http://localhost:5200
Microsoft.Hosting.Lifetime: Information: Application started. Press Ctrl+C to shut down.
Microsoft.Hosting.Lifetime: Information: Hosting environment: Development
Microsoft.Hosting.Lifetime: Information: Content root path: A:\Documents\CheckersApi
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Net.WebSockets.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Threading.Tasks.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.Net.NameResolution.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.12\System.IO.Compression.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'CheckersApi.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\9.0.12\Microsoft.AspNetCore.WebUtilities.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
The thread '.NET TP Worker' (47128) has exited with code 0 (0x0).
Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware: Debug: Response markup is scheduled to include browser refresh script injection.
Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware: Debug: Response markup was updated to include browser refresh script injection.
Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserScriptMiddleware: Debug: Script injected: /_framework/aspnetcore-browser-refresh.js
The program '[42128] CheckersApi.exe' has exited with code 3221226505 (0xc0000409).

dbug: Microsoft.AspNetCore.Watch.BrowserRefresh.BlazorWasmHotReloadMiddleware[0]
      Middleware loaded
dbug: Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserScriptMiddleware[0]
      Middleware loaded. Script /_framework/aspnetcore-browser-refresh.js (16507 B).
dbug: Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserScriptMiddleware[0]
      Middleware loaded. Script /_framework/blazor-hotreload.js (799 B).
dbug: Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware[0]
      Middleware loaded: DOTNET_MODIFIABLE_ASSEMBLIES=debug, __ASPNETCORE_BROWSER_TOOLS=true
info: Microsoft.Hosting.Lifetime[14]
      Now listening on: http://localhost:5200
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Development
info: Microsoft.Hosting.Lifetime[0]
      Content root path: A:\Documents\CheckersApi
dbug: Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware[1]
      Response markup is scheduled to include browser refresh script injection.
dbug: Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware[2]
      Response markup was updated to include browser refresh script injection.
dbug: Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserScriptMiddleware[0]
      Script injected: /_framework/aspnetcore-browser-refresh.js
Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at CheckersApi.Engine.NativeKingsRow.CallGetMoveAscii(System.String, Int32)
   at CheckersApi.Engine.NativeKingsRowAdapter.Suggest(CheckersApi.Contracts.SuggestRequest, System.Threading.CancellationToken)
   at CheckersApi.Engine.CachedEngineAdapter+<>c__DisplayClass3_0.<Suggest>b__0(Microsoft.Extensions.Caching.Memory.ICacheEntry)
   at Microsoft.Extensions.Caching.Memory.CacheExtensions.GetOrCreate[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]](Microsoft.Extensions.Caching.Memory.IMemoryCache, System.Object, System.Func`2<Microsoft.Extensions.Caching.Memory.ICacheEntry,System.__Canon>)
   at CheckersApi.Engine.CachedEngineAdapter.Suggest(CheckersApi.Contracts.SuggestRequest, System.Threading.CancellationToken)
   at CheckersApi.Controllers.MoveController.Suggest(CheckersApi.Contracts.SuggestRequest)
   at DynamicClass.lambda_method5(System.Runtime.CompilerServices.Closure, System.Object, System.Object[])
   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor+SyncActionResultExecutor.Execute(Microsoft.AspNetCore.Mvc.ActionContext, Microsoft.AspNetCore.Mvc.Infrastructure.IActionResultTypeMapper, Microsoft.Extensions.Internal.ObjectMethodExecutor, System.Object, System.Object[])
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeActionMethodAsync()
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State ByRef, Scope ByRef, System.Object ByRef, Boolean ByRef)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeNextActionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State ByRef, Scope ByRef, System.Object ByRef, Boolean ByRef)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeNextActionFilterAsync()
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State ByRef, Scope ByRef, System.Object ByRef, Boolean ByRef)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State ByRef, Scope ByRef, System.Object ByRef, Boolean ByRef)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeAsync()
   at Microsoft.AspNetCore.Routing.EndpointMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext)
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware+<Invoke>d__5.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware+<Invoke>d__5, Swashbuckle.AspNetCore.SwaggerUI, Version=6.5.0.0, Culture=neutral, PublicKeyToken=4232c99127b3c254]](<Invoke>d__5 ByRef)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware+<Invoke>d__5, Swashbuckle.AspNetCore.SwaggerUI, Version=6.5.0.0, Culture=neutral, PublicKeyToken=4232c99127b3c254]](<Invoke>d__5 ByRef)
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware+<Invoke>d__4.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware+<Invoke>d__4, Swashbuckle.AspNetCore.Swagger, Version=6.5.0.0, Culture=neutral, PublicKeyToken=62657d7474907593]](<Invoke>d__4 ByRef)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware+<Invoke>d__4, Swashbuckle.AspNetCore.Swagger, Version=6.5.0.0, Culture=neutral, PublicKeyToken=62657d7474907593]](<Invoke>d__4 ByRef)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext, Swashbuckle.AspNetCore.Swagger.ISwaggerProvider)
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware+<Invoke>d__9.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[Microsoft.AspNetCore.Authorization.AuthorizationMiddleware+<Invoke>d__9, Microsoft.AspNetCore.Authorization.Policy, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<Invoke>d__9 ByRef)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.AspNetCore.Authorization.AuthorizationMiddleware+<Invoke>d__9, Microsoft.AspNetCore.Authorization.Policy, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<Invoke>d__9 ByRef)
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware+<Invoke>d__6.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[Microsoft.AspNetCore.Authentication.AuthenticationMiddleware+<Invoke>d__6, Microsoft.AspNetCore.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<Invoke>d__6 ByRef)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.AspNetCore.Authentication.AuthenticationMiddleware+<Invoke>d__6, Microsoft.AspNetCore.Authentication, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<Invoke>d__6 ByRef)
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl+<Invoke>d__10.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl+<Invoke>d__10, Microsoft.AspNetCore.Diagnostics, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<Invoke>d__10 ByRef)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl+<Invoke>d__10, Microsoft.AspNetCore.Diagnostics, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<Invoke>d__10 ByRef)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.AspNetCore.HostFiltering.HostFilteringMiddleware.Invoke(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware+<InvokeAsync>d__7.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware+<InvokeAsync>d__7, Microsoft.WebTools.BrowserLink.Net, Version=18.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]](<InvokeAsync>d__7 ByRef)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware+<InvokeAsync>d__7, Microsoft.WebTools.BrowserLink.Net, Version=18.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]](<InvokeAsync>d__7 ByRef)
   at Microsoft.WebTools.BrowserLink.Net.BrowserLinkMiddleware.InvokeAsync(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.WebTools.BrowserLink.Net.VsContentMiddleware.InvokeAsync(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware+<InvokeAsync>d__8.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware+<InvokeAsync>d__8, Microsoft.AspNetCore.Watch.BrowserRefresh, Version=10.0.100.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<InvokeAsync>d__8 ByRef)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware+<InvokeAsync>d__8, Microsoft.AspNetCore.Watch.BrowserRefresh, Version=10.0.100.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]](<InvokeAsync>d__8 ByRef)
   at Microsoft.AspNetCore.Watch.BrowserRefresh.BrowserRefreshMiddleware.InvokeAsync(Microsoft.AspNetCore.Http.HttpContext)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol+<ProcessRequests>d__238`1[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol+<ProcessRequests>d__238`1[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], Microsoft.AspNetCore.Server.Kestrel.Core, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].ExecutionContextCallback(System.Object)
   at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(System.Threading.Thread, System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol+<ProcessRequests>d__238`1[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], Microsoft.AspNetCore.Server.Kestrel.Core, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext(System.Threading.Thread)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1+AsyncStateMachineBox`1[[System.Threading.Tasks.VoidTaskResult, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol+<ProcessRequests>d__238`1[[System.__Canon, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], Microsoft.AspNetCore.Server.Kestrel.Core, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].ExecuteFromThreadPool(System.Threading.Thread)
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart()

using System;
using System.Runtime.InteropServices;
using System.Text;

namespace CheckersApi.Engine
{
    internal static class NativeKingsRow
    {
        private static readonly object s_lock = new();
        private static bool s_bound;
        private static IntPtr s_module;

        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        private delegate IntPtr enginename_delegate();
        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        private delegate int protocolversion_delegate();
        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        private delegate int staticevaluation_delegate(IntPtr pdn);
        // Changed capacity parameter types from 'int' to 'UIntPtr' to match native size_t on x64
        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        private delegate int getmove_delegate(IntPtr pdn, IntPtr buffer, UIntPtr capacity);
        [UnmanagedFunctionPointer(CallingConvention.StdCall)]
        private delegate int enginecommand_delegate(IntPtr cmd, IntPtr buffer, UIntPtr capacity);

        private static enginename_delegate? s_enginename;
        private static protocolversion_delegate? s_protocolversion;
        private static staticevaluation_delegate? s_staticevaluation;
        private static getmove_delegate? s_getmove;
        private static enginecommand_delegate? s_enginecommand;

        public static void BindOnce(IntPtr module)
        {
            if (s_bound) return;
            lock (s_lock)
            {
                if (s_bound) return;
                if (module == IntPtr.Zero)
                    throw new DllNotFoundException("Kingsrow64.dll module handle is null");

                s_module = module;
                s_enginename = GetExport<enginename_delegate>(s_module, "enginename");
                s_protocolversion = GetExport<protocolversion_delegate>(s_module, "protocolversion");
                s_staticevaluation = GetExport<staticevaluation_delegate>(s_module, "staticevaluation");
                s_getmove = GetExport<getmove_delegate>(s_module, "getmove");
                s_enginecommand = GetExport<enginecommand_delegate>(s_module, "enginecommand");
                s_bound = true;
            }
        }

        private static T GetExport<T>(IntPtr module, string name) where T : Delegate
        {
            var addr = NativeLibrary.GetExport(module, name);
            return Marshal.GetDelegateForFunctionPointer<T>(addr);
        }

        private static void EnsureBound()
        {
            if (!s_bound)
                throw new InvalidOperationException("NativeKingsRow not bound—call KingsRowBootstrap.Initialize first.");
        }

        public static string EngineName()
        {
            EnsureBound();
            lock (s_lock)
            {
                var ptr = s_enginename!.Invoke();
                return ptr == IntPtr.Zero ? "KingsRow" : (Marshal.PtrToStringAnsi(ptr) ?? "KingsRow");
            }
        }

        public static int ProtocolVersion()
        {
            EnsureBound();
            lock (s_lock) { return s_protocolversion!.Invoke(); }
        }

        public static int StaticEvaluation(string pdn)
        {
            EnsureBound();
            IntPtr pdnPtr = Marshal.StringToHGlobalAnsi(pdn);
            try { lock (s_lock) { return s_staticevaluation!.Invoke(pdnPtr); } }
            finally { Marshal.FreeHGlobal(pdnPtr); }
        }

        public static (int rc, string reply) EngineCommand(string command, int capacity = 1024)
        {
            EnsureBound();
            IntPtr cmdPtr = Marshal.StringToHGlobalAnsi(command);
            IntPtr buf = AllocZero(capacity);
            try
            {
                int rc;
                // pass capacity as UIntPtr
                lock (s_lock) { rc = s_enginecommand!.Invoke(cmdPtr, buf, (UIntPtr)capacity); }
                var reply = rc == 0 ? ReadAnsi(buf, capacity) : string.Empty;
                return (rc, reply);
            }
            finally
            {
                Marshal.FreeHGlobal(cmdPtr);
                Marshal.FreeHGlobal(buf);
            }
        }

        public static (int rc, string move) CallGetMoveAscii(string pdn, int capacity = 32768)
        {
            EnsureBound();
            try
            {
                lock (s_lock) { _ = s_protocolversion!.Invoke(); }
                _ = EngineCommand("about", 512);
            }
            catch { }

            IntPtr pdnPtr = Marshal.StringToHGlobalAnsi(pdn);
            IntPtr buf = AllocZero(capacity);
            try
            {
                int rc;
                // pass capacity as UIntPtr  
            lock (s_lock) { rc = s_getmove!.Invoke(pdnPtr, buf, (UIntPtr)capacity); }   // тут помилка           
 if (rc != 0) return (rc, string.Empty);
                return (rc, ReadAnsi(buf, capacity).Trim());
            }
            finally
            {
                Marshal.FreeHGlobal(pdnPtr);
                Marshal.FreeHGlobal(buf);
            }
        }

        private static IntPtr AllocZero(int size)
        {
            var p = Marshal.AllocHGlobal(size);
            unsafe { new Span<byte>((void*)p, size).Clear(); }
            return p;
        }

        private static string ReadAnsi(IntPtr buf, int capacity)
        {
            var bytes = new byte[capacity];
            Marshal.Copy(buf, bytes, 0, capacity);
            int len = Array.IndexOf<byte>(bytes, 0);
            if (len < 0) len = capacity;
            return Encoding.ASCII.GetString(bytes, 0, len);
        }
    }
}