public List <EpdPositionData> Load(string epdPath)
{
var positions = new List <EpdPositionData>();
using (var streamReader = new StreamReader(epdPath))
{
while (!streamReader.EndOfStream)
{
var line = streamReader.ReadLine();
var trimmedLine = line.Trim(';');
var chunks = trimmedLine.Split(' ');
var result = chunks.Last();
if (string.IsNullOrWhiteSpace(result))
{
continue;
}
positions.Add(new EpdPositionData
{
BoardState = FenToBoard.Parse(trimmedLine, false),
Result = GetGameResult(result)
});
}
}
return(positions);
}
public void SimplePerft_EndGameBoard(int depth, ulong expectedLeafsCount)
{
var boardState = FenToBoard.Parse("7r/8/2k3P1/1p1p2Kp/1P6/2P5/7r/Q7 w - - 0 1");
var result = SimplePerft.Run(boardState, depth);
Assert.Equal(expectedLeafsCount, result.LeafsCount);
}
public void SimplePerft_MidGameBoard(int depth, ulong expectedLeafsCount)
{
var boardState = FenToBoard.Parse("r2qr1k1/p2n1p2/1pb3pp/2ppN1P1/1R1PpP2/BQP1n1PB/P4N1P/1R4K1 w - - 0 21");
var result = SimplePerft.Run(boardState, depth);
Assert.Equal(expectedLeafsCount, result.LeafsCount);
}
public void VerificationPerft_EndGameBoard()
{
var boardState = FenToBoard.Parse("7r/8/2k3P1/1p1p2Kp/1P6/2P5/7r/Q7 w - - 0 1");
var result = VerificationPerft.Run(boardState, 6);
Assert.True(result.VerificationSuccess);
}
public void VerificationPerft_MidGameBoard()
{
var boardState = FenToBoard.Parse("r2qr1k1/p2n1p2/1pb3pp/2ppN1P1/1R1PpP2/BQP1n1PB/P4N1P/1R4K1 w - - 0 21");
var result = VerificationPerft.Run(boardState, 5);
Assert.True(result.VerificationSuccess);
}
public void Run(params string[] parameters)
{
var fen = string.Join(' ', parameters);
var boardState = FenToBoard.Parse(fen);
var evaluationStatistics = new EvaluationStatistics();
var openingPhase = boardState.GetPhaseRatio();
var endingPhase = BoardConstants.PhaseResolution - openingPhase;
var fieldsAttackedByWhite = 0ul;
var fieldsAttackedByBlack = 0ul;
var materialEvaluation = MaterialEvaluator.Evaluate(boardState);
var castlingEvaluation = CastlingEvaluator.Evaluate(boardState, openingPhase, endingPhase);
var positionEvaluation = PositionEvaluator.Evaluate(boardState, openingPhase, endingPhase);
var pawnStructureEvaluation = PawnStructureEvaluator.Evaluate(boardState, evaluationStatistics, openingPhase, endingPhase);
var mobility = MobilityEvaluator.Evaluate(boardState, openingPhase, endingPhase, ref fieldsAttackedByWhite, ref fieldsAttackedByBlack);
var kingSafety = KingSafetyEvaluator.Evaluate(boardState, openingPhase, endingPhase, fieldsAttackedByWhite, fieldsAttackedByBlack);
var pieces = PiecesEvaluator.Evaluate(boardState, openingPhase, endingPhase);
var fianchetto = FianchettoEvaluator.Evaluate(boardState, openingPhase, endingPhase);
var total = materialEvaluation + castlingEvaluation + positionEvaluation + pawnStructureEvaluation +
mobility + kingSafety + pieces + fianchetto;
_interactiveConsole.WriteLine($"Evaluation for board with hash {boardState.Hash} (phase {openingPhase}, " +
$"{boardState.IrreversibleMovesCount} irreversible moves)");
_interactiveConsole.WriteLine($" = Material: {materialEvaluation}");
_interactiveConsole.WriteLine($" = Castling: {castlingEvaluation}");
_interactiveConsole.WriteLine($" = Position: {positionEvaluation}");
_interactiveConsole.WriteLine($" = Pawns: {pawnStructureEvaluation}");
_interactiveConsole.WriteLine($" = Mobility: {mobility}");
_interactiveConsole.WriteLine($" = King safety: {kingSafety}");
_interactiveConsole.WriteLine($" = Pieces evaluation: {pieces}");
_interactiveConsole.WriteLine($" = Fianchetto evaluation: {fianchetto}");
_interactiveConsole.WriteLine();
_interactiveConsole.WriteLine($" = Total: {total}");
}
public void Run(params string[] parameters)
{
var fen = string.Join(' ', parameters);
var boardState = FenToBoard.Parse(fen, false);
var evaluationStatistics = new EvaluationStatistics();
var openingPhase = boardState.GetPhaseRatio();
var endingPhase = BoardConstants.PhaseResolution - openingPhase;
var fieldsAttackedByWhite = 0ul;
var fieldsAttackedByBlack = 0ul;
var materialEvaluation = MaterialEvaluator.Evaluate(boardState);
var positionEvaluation = PositionEvaluator.Evaluate(boardState, openingPhase, endingPhase);
var pawnStructureEvaluation = PawnStructureEvaluator.EvaluateWithoutCache(boardState, evaluationStatistics, openingPhase, endingPhase);
var mobility = MobilityEvaluator.Evaluate(boardState, openingPhase, endingPhase, ref fieldsAttackedByWhite, ref fieldsAttackedByBlack);
var kingSafety = KingSafetyEvaluator.Evaluate(boardState, openingPhase, endingPhase, fieldsAttackedByWhite, fieldsAttackedByBlack);
var rooks = RookEvaluator.Evaluate(boardState, openingPhase, endingPhase);
var bishops = BishopEvaluator.Evaluate(boardState, openingPhase, endingPhase);
var total = materialEvaluation + positionEvaluation + pawnStructureEvaluation +
mobility + kingSafety;
_interactiveConsole.WriteLine($"Evaluation for board with hash {boardState.Hash} (phase {openingPhase}, " +
$"{boardState.IrreversibleMovesCount} irreversible moves)");
_interactiveConsole.WriteLine($" = Material: {materialEvaluation}");
_interactiveConsole.WriteLine($" = Position: {positionEvaluation}");
_interactiveConsole.WriteLine($" = Pawns: {pawnStructureEvaluation}");
_interactiveConsole.WriteLine($" = Mobility: {mobility}");
_interactiveConsole.WriteLine($" = King safety: {kingSafety}");
_interactiveConsole.WriteLine($" = Rooks: {rooks}");
_interactiveConsole.WriteLine($" = Bishops: {bishops}");
_interactiveConsole.WriteLine();
_interactiveConsole.WriteLine($" = Total: {total}");
}
private void TestEndGame()
{
var boardState = FenToBoard.Parse("7r/8/2k3P1/1p1p2Kp/1P6/2P5/7r/Q7 w - - 0 1");
Test(boardState, "Endgame", 17);
}
private void TestMidGame()
{
var boardState = FenToBoard.Parse("r2qr1k1/p2n1p2/1pb3pp/2ppN1P1/1R1PpP2/BQP1n1PB/P4N1P/1R4K1 w - - 0 21");
Test(boardState, "Midgame", 12);
}
private void ParseFen(string fen, List <string> moves)
{
_uciClient.BoardState = FenToBoard.Parse(fen);
ParseMoves(moves);
}
public void DividedPerft_DefaultBoard(string fen)
{
var boardFromFen = FenToBoard.Parse(fen);
Assert.Equal(fen, boardFromFen.ToString());
}