public static void Main()
{
var cb = ChessBoardInstances.Get(0);
MainEngine.MaxDepth = MaxPly;
UciOut.NoOutput = true;
EngineConstants.Power2TtEntries = 2;
TtUtil.Init(false);
long totalNodesSearched = 0;
var epdStrings = BestMoveTest.GetEpdStrings("Resources/WAC-201.epd");
for (var index = 0; index < NumberOfPositions; index++)
{
Console.WriteLine(index);
var epdString = epdStrings[index + 20];
Statistics.Reset();
var epd = new Epd(epdString);
ChessBoardUtil.SetFen(epd.GetFen(), cb);
SearchUtil.Start(cb);
totalNodesSearched += ChessBoardUtil.CalculateTotalMoveCount();
}
Console.WriteLine("Total " + totalNodesSearched);
Console.WriteLine("Average " + totalNodesSearched / NumberOfPositions);
}
public static void Start(ChessBoard cb)
{
NegamaxUtil.IsRunning = true;
cb.MoveCount = 0;
if (UciOptions.ThreadCount == 1)
{
new SearchThread(0).Call();
}
else
{
var tasks = new List <Task>();
for (var i = 0; i < UciOptions.ThreadCount; i++)
{
if (i > 0)
{
ChessBoardUtil.Copy(cb, ChessBoardInstances.Get(i));
}
var i1 = i;
var t = new Task(() => new SearchThread(i1).Call());
tasks.Add(t);
}
try
{
tasks.ForEach(task => task.Start());
Task.WaitAll(tasks.ToArray());
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
}
public static void Main()
{
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\quiet-labeled.epd", true, false);
Console.WriteLine(fens.Count + " fens found");
var cb = ChessBoardInstances.Get(0);
var threadData = ThreadData.GetInstance(0);
foreach (var(key, value) in fens)
{
ChessBoardUtil.SetFen(key, cb);
var error = Math.Pow(value - ErrorCalculator.CalculateSigmoid(EvalUtil.CalculateScore(cb, threadData)),
2);
for (var i = 0; i < LargestError.Length; i++)
{
if (!(error > LargestError[i]))
{
continue;
}
LargestError[i] = error;
LargestErrorFen[i] = key;
break;
}
}
for (var i = 0; i < LargestError.Length; i++)
{
Console.WriteLine($"{LargestErrorFen[i],60} -> {LargestError[i]}");
}
}
public static async Task Main()
{
// read all fens, including score
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\quiet-labeled.epd", true, false);
Console.WriteLine("Fens found : " + fens.Count);
// init workers
ChessBoardInstances.Init(NumberOfThreads);
ThreadData.InitInstances(NumberOfThreads);
for (var i = 0; i < NumberOfThreads; i++)
{
Workers[i] = new ErrorCalculator(ChessBoardInstances.Get(i), ThreadData.GetInstance(i));
}
// add fens to workers
var workerIndex = 0;
foreach (var(key, value) in fens)
{
Workers[workerIndex].AddFenWithScore(key, value);
workerIndex = workerIndex == NumberOfThreads - 1 ? 0 : workerIndex + 1;
}
// get tuned values
var tuningObjects = Tuner.GetTuningObjects();
// tune
await Eval(tuningObjects);
Console.WriteLine("Done");
}
public static void Main()
{
var cb = ChessBoardInstances.Get(0);
ChessBoardUtil.SetFen("1r1q1rk1/2p1npb1/b3p1p1/p5N1/1ppPB2R/P1N1P1P1/1P2QPP1/2K4R w - - 0 20 ", cb);
EvalUtil.CalculateScore(cb, ThreadData.GetInstance(0));
}
public void Run()
{
var threadData = ThreadData.GetInstance(_threadNumber);
var cb = ChessBoardInstances.Get(_threadNumber);
ChessBoardUtil.SetFen(ChessConstants.FenStart, cb);
Perft(cb, threadData, Depth);
}
public static void Main()
{
Thread.CurrentThread.Name = "Chess22kDotNet-main";
_cb = ChessBoardInstances.Get(0);
_threadData = ThreadData.GetInstance(0);
Start();
}
public static void SetThreadCount(int threadCount)
{
if (threadCount == ThreadCount)
{
return;
}
ThreadCount = threadCount;
ChessBoardInstances.Init(threadCount);
ThreadData.InitInstances(threadCount);
}
public static void Main()
{
var cb = ChessBoardInstances.Get(0);
ChessBoardUtil.SetFen(FenStandardMiddlegame, cb);
TimeUtil.SetSimpleTimeWindow(5000);
TtUtil.Init(false);
SearchUtil.Start(cb);
Statistics.Print();
}
public static void Main()
{
var cb = ChessBoardInstances.Get(0);
// read all fens, including score
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\violent.epd", false, true);
Console.WriteLine("Fens found : " + fens.Count);
// NegamaxUtil.isRunning = true;
EngineConstants.Power2TtEntries = 1;
TtUtil.Init(false);
double totalPositions = 0;
double sameScore = 0;
long totalError = 0;
var watch = new Stopwatch();
watch.Start();
foreach (var entry in fens)
{
ChessBoardUtil.SetFen(entry.Key, cb);
if (cb.CheckingPieces == 0)
{
continue;
}
totalPositions++;
var searchScore = NegamaxUtil.CalculateBestMove(cb, ThreadData, 0, 1, Util.ShortMin, Util.ShortMax, 0);
TtUtil.ClearValues();
var qScore = QuiescenceUtil.CalculateBestMove(cb, ThreadData, Util.ShortMin, Util.ShortMax);
if (searchScore == qScore)
{
sameScore++;
}
else
{
var error = searchScore - qScore;
// if (error > 500) {
// System.out.println(searchScore + " " + qScore);
// QuiescenceUtil.calculateBestMove(cb, threadData, Util.SHORT_MIN, Util.SHORT_MAX);
// }
totalError += error;
}
}
var averageError = (int)(totalError / (totalPositions - sameScore));
Console.WriteLine($"{sameScore / totalPositions:f4} {averageError}");
Console.WriteLine("msec: " + watch.ElapsedMilliseconds);
}
public static void Main()
{
var cb = ChessBoardInstances.Get(0);
// read all fens, including score
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\violent.epd", false, true);
Console.WriteLine("Fens found : " + fens.Count);
double sameScore = 0;
double totalAttacks = 0;
var start = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
foreach (var entry in fens)
{
ChessBoardUtil.SetFen(entry.Key, cb);
_threadData.StartPly();
MoveGenerator.GenerateAttacks(_threadData, cb);
while (_threadData.HasNext())
{
var move = _threadData.Next();
if (!cb.IsLegal(move))
{
continue;
}
totalAttacks++;
var seeScore = SeeUtil.GetSeeCaptureScore(cb, move);
var materialScore = EvalUtil.CalculateMaterialScore(cb);
var qScore = ChessConstants.ColorFactor[cb.ColorToMoveInverse] * materialScore -
CalculateQScore(cb, move, true);
if (seeScore == qScore)
{
sameScore++;
}
// else {
// seeScore = SEEUtil.getSeeCaptureScore(cb, move);
// qScore = ChessConstants.COLOR_FACTOR[cb.colorToMoveInverse] * materialScore - calculateQScore(cb,
// move, true);
// }
}
_threadData.EndPly();
}
Console.WriteLine($"{sameScore:f0} {totalAttacks:f0} = {sameScore / totalAttacks:f4}");
Console.WriteLine("msec: " + (DateTimeOffset.UtcNow.ToUnixTimeMilliseconds() - start));
}
public void Run()
{
Console.WriteLine("Start " + _name);
var cb = ChessBoardInstances.Get(_threadNumber);
var threadData = ThreadData.GetInstance(_threadNumber);
foreach (var position in _positions)
{
ChessBoardUtil.SetFen(position.Fen, cb);
Assert.IsTrue(position.MoveCount == perft(cb, threadData, position.Depth));
}
Console.WriteLine("Done " + _name);
}
private static void DoTest(IReadOnlyCollection <string> epdStrings)
{
var correctCounter = 0;
foreach (var epdString in epdStrings)
{
var epd = new Epd(epdString);
var cb = ChessBoardInstances.Get(0);
ChessBoardUtil.SetFen(epd.GetFen(), cb);
TimeUtil.Reset();
TimeUtil.SetSimpleTimeWindow(5000);
SearchUtil.Start(cb);
var bestMove = new MoveWrapper(ThreadData.GetBestMove());
if (epd.IsBestMove)
{
if (epd.MoveEquals(bestMove))
{
Console.WriteLine(epd.GetId() + " BM OK");
correctCounter++;
_positionTestOk++;
}
else
{
Console.WriteLine(epd.GetId() + " BM NOK " + bestMove + " - " + epd);
_positionTestNok++;
}
}
else
{
if (epd.MoveEquals(bestMove))
{
Console.WriteLine(epd.GetId() + " AM NOK " + epd);
_positionTestNok++;
}
else
{
Console.WriteLine(epd.GetId() + " AM OK");
correctCounter++;
_positionTestOk++;
}
}
}
Console.WriteLine(correctCounter + "/" + epdStrings.Count);
}
public static void Main()
{
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\quiet-labeled.epd", true, false);
Console.WriteLine(fens.Count + " fens found");
var cb = ChessBoardInstances.Get(0);
foreach (var entry in fens)
{
ChessBoardUtil.SetFen(entry.Key, cb);
PieceCounts[BitOperations.PopCount((ulong)cb.AllPieces)]++;
}
for (var i = 0; i < 33; i++)
{
Console.WriteLine(i + " " + PieceCounts[i]);
}
}
public static void Main()
{
// read all fens, including score
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\quiet-labeled.epd", true, true);
Console.WriteLine("Fens found : " + fens.Count);
var tested = 0;
var ok = 0;
var nok = 0;
foreach (var(fen, score) in fens)
{
var cb = ChessBoardInstances.Get(0);
ChessBoardUtil.SetFen(fen, cb);
if (BitOperations.PopCount((ulong)cb.AllPieces) > 3)
{
continue;
}
if (cb.Pieces[ChessConstants.White][ChessConstants.Pawn] == 0 &&
cb.Pieces[ChessConstants.Black][ChessConstants.Pawn] == 0)
{
continue;
}
tested++;
if (KpkBitbase.IsDraw(cb) == (score == 0.5))
{
ok++;
}
else
{
nok++;
}
}
Console.WriteLine();
Console.WriteLine("Tested " + tested);
Console.WriteLine("OK " + ok);
Console.WriteLine("NOK " + nok);
}
public static void Main()
{
ChessBoardInstances.Init(32);
ThreadData.InitInstances(32);
var stopwatch = new Stopwatch();
foreach (var run in Runs)
{
stopwatch.Restart();
Console.WriteLine("Starting " + run + " thread(s)");
var tasks = new List <Task>();
for (var i = 0; i < run; i++)
{
var i1 = i;
tasks.Add(Task.Run(() => new PerftThread(i1).Run()));
}
Task.WaitAll(tasks.ToArray());
Console.WriteLine(stopwatch.ElapsedMilliseconds);
}
}
private static void SetOption(string optionName, string optionValue)
{
// setoption name Hash value 128
if (optionName.ToLower().Equals("hash"))
{
var value = int.Parse(optionValue);
TtUtil.SetSizeMb(value);
}
else if (optionName.ToLower().Equals("threads"))
{
UciOptions.SetThreadCount(int.Parse(optionValue));
_cb = ChessBoardInstances.Get(0);
_threadData = ThreadData.GetInstance(0);
}
else if (optionName.ToLower().Equals("ponder"))
{
UciOptions.SetPonder(bool.Parse(optionValue));
}
else
{
Console.WriteLine("Unknown option: " + optionName);
}
}
public static async Task Main()
{
if (!EngineConstants.GenerateBrPromotions)
{
Console.WriteLine("Generation of underpromotions is disabled!");
}
ChessBoardInstances.Init(8);
ThreadData.InitInstances(8);
var threadNr = 0;
var kiwi = new PerftWorker("Kiwi-pete", threadNr++);
kiwi.AddPosition("r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq -", 4085603, 4);
var ep = new PerftWorker("EP", threadNr++);
ep.AddPosition("3k4/3p4/8/K1P4r/8/8/8/8 b - - 0 1", 20757544, 7);
ep.AddPosition("8/8/4k3/8/2p5/8/B2P2K1/8 w - - 0 1", 14047573, 7);
ep.AddPosition("8/8/1k6/2b5/2pP4/8/5K2/8 b - d3 0 1", 21190412, 7);
var castling = new PerftWorker("Castling", threadNr++);
castling.AddPosition("5k2/8/8/8/8/8/8/4K2R w K - 0 1", 661072, 6);
castling.AddPosition("3k4/8/8/8/8/8/8/R3K3 w Q - 0 1", 803711, 6);
castling.AddPosition("r3k2r/1b4bq/8/8/8/8/7B/R3K2R w KQkq - 0 1", 1274206, 4);
castling.AddPosition("r3k2r/8/3Q4/8/8/5q2/8/R3K2R b KQkq - 0 1", 1720476, 4);
var promotion = new PerftWorker("Promotion", threadNr++);
promotion.AddPosition("2K2r2/4P3/8/8/8/8/8/3k4 w - - 0 1", 60651209, 7);
promotion.AddPosition("4k3/1P6/8/8/8/8/K7/8 w - - 0 1", 3742283, 7);
promotion.AddPosition("8/P1k5/K7/8/8/8/8/8 w - - 0 1", 1555980, 7);
var mate = new PerftWorker("Stalemate and Checkmate", threadNr++);
mate.AddPosition("8/8/1P2K3/8/2n5/1q6/8/5k2 b - - 0 1", 6334638, 6);
mate.AddPosition("K1k5/8/P7/8/8/8/8/8 w - - 0 1", 15453, 7);
mate.AddPosition("8/k1P5/8/1K6/8/8/8/8 w - - 0 1", 2518905, 8);
mate.AddPosition("8/8/2k5/5q2/5n2/8/5K2/8 b - - 0 1", 3114998, 6);
var perft = new PerftWorker("Perft", threadNr);
perft.AddPosition(ChessConstants.FenStart, 4865609, 5);
var kiwiTask = Task.Run(() => kiwi.Run());
var epTask = Task.Run(() => ep.Run());
var castlingTask = Task.Run(() => castling.Run());
var promotionTask = Task.Run(() => promotion.Run());
var mateTask = Task.Run(() => mate.Run());
var perftTask = Task.Run(() => perft.Run());
await kiwiTask;
await epTask;
await castlingTask;
await promotionTask;
await mateTask;
await perftTask;
Console.WriteLine();
Console.WriteLine("Done");
}
public static void Main()
{
var fens = Tuner.LoadFens("d:\\backup\\chess\\epds\\quiet-labeled.epd", true, false);
Console.WriteLine(fens.Count + " fens found");
var kpk = new ErrorCount("KPK ");
var kbnk = new ErrorCount("KBNK");
var kbpk = new ErrorCount("KBPK");
var krkp = new ErrorCount("KRKP");
var kqkp = new ErrorCount("KQKP");
var krkb = new ErrorCount("KRKB");
var krkn = new ErrorCount("KRKN");
var kbpkp = new ErrorCount("KBPKP");
var krbkb = new ErrorCount("KRBKB");
var krbkr = new ErrorCount("KRBKR");
var cb = ChessBoardInstances.Get(0);
var threadData = ThreadData.GetInstance(0);
foreach (var(key, value) in fens)
{
ChessBoardUtil.SetFen(key, cb);
var error = Math.Pow(
value - ErrorCalculator.CalculateSigmoid(ChessConstants.ColorFactor[cb.ColorToMove] *
EvalUtil.CalculateScore(cb, threadData)),
2);
if (MaterialUtil.IsKbnk(cb.MaterialKey))
{
kbnk.AddError(error);
}
else if (MaterialUtil.IsKqkp(cb.MaterialKey))
{
kqkp.AddError(error);
}
else if (MaterialUtil.IsKrkp(cb.MaterialKey))
{
krkp.AddError(error);
}
else if (MaterialUtil.IsKrkb(cb.MaterialKey))
{
krkb.AddError(error);
}
else if (MaterialUtil.IsKrkn(cb.MaterialKey))
{
krkn.AddError(error);
}
else if (MaterialUtil.IsKpk(cb.MaterialKey))
{
krkn.AddError(error);
}
else if (MaterialUtil.IsKbpk(cb.MaterialKey))
{
kbpk.AddError(error);
}
else if (MaterialUtil.IsKbpkp(cb.MaterialKey))
{
kbpkp.AddError(error);
}
else if (MaterialUtil.IsKrbkb(cb.MaterialKey))
{
krbkb.AddError(error);
}
else if (MaterialUtil.IsKrbkr(cb.MaterialKey))
{
krbkr.AddError(error);
}
}
kpk.Print();
kbnk.Print();
krkp.Print();
kqkp.Print();
krkb.Print();
krkn.Print();
krbkb.Print();
krbkr.Print();
kbpk.Print();
kbpkp.Print();
}
