private static int Perft(ChessBoard cb, ThreadData threadData, int depth)
{
threadData.StartPly();
MoveGenerator.GenerateMoves(threadData, cb);
MoveGenerator.GenerateAttacks(threadData, cb);
if (depth == 0)
{
threadData.EndPly();
return(1);
}
var counter = 0;
while (threadData.HasNext())
{
var move = threadData.Next();
if (!cb.IsLegal(move))
{
continue;
}
cb.DoMove(move);
EvalUtil.CalculateScore(cb, threadData);
counter += Perft(cb, threadData, depth - 1);
cb.UndoMove(move);
}
threadData.EndPly();
return(counter);
}
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 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 double Call()
{
double totalError = 0;
foreach (var(key, value) in _fens)
{
ChessBoardUtil.SetFen(key, _cb);
totalError += Math.Pow(
value - CalculateSigmoid(ChessConstants.ColorFactor[_cb.ColorToMove] *
EvalUtil.CalculateScore(_cb, _threadData)),
2);
}
totalError /= _fens.Count;
return(totalError);
}
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();
}