public void Fen_Parse_Default_Correct()
{
var gameState = FenHelpers.Parse(FenHelpers.Default);
Assert.Equal(SquareFlagConstants.R2, gameState.WhitePawns);
Assert.Equal(SquareFlag.A1 | SquareFlag.H1, gameState.WhiteRooks);
Assert.Equal(SquareFlag.B1 | SquareFlag.G1, gameState.WhiteKnights);
Assert.Equal(SquareFlag.C1 | SquareFlag.F1, gameState.WhiteBishops);
Assert.Equal(SquareFlag.D1, gameState.WhiteQueens);
Assert.Equal(SquareFlag.E1, gameState.WhiteKing);
Assert.Equal(SquareFlagConstants.R7, gameState.BlackPawns);
Assert.Equal(SquareFlag.A8 | SquareFlag.H8, gameState.BlackRooks);
Assert.Equal(SquareFlag.B8 | SquareFlag.G8, gameState.BlackKnights);
Assert.Equal(SquareFlag.C8 | SquareFlag.F8, gameState.BlackBishops);
Assert.Equal(SquareFlag.D8, gameState.BlackQueens);
Assert.Equal(SquareFlag.E8, gameState.BlackKing);
Assert.Equal(Colour.White, gameState.ToPlay);
Assert.True(gameState.WhiteCanCastleKingSide);
Assert.True(gameState.WhiteCanCastleQueenSide);
Assert.True(gameState.BlackCanCastleKingSide);
Assert.True(gameState.BlackCanCastleQueenSide);
Assert.Equal((SquareFlag)0, gameState.EnPassant);
Assert.Equal(0, gameState.HalfMoveClock);
Assert.Equal(1, gameState.FullTurn);
}
public void CinnamonChess_PromotionsPosition_ToDepth5()
{
var perftRunner = new PerftRunnerMetrics(moveGeneratorFixture.MoveGenerator);
// "8/PPP4k/8/8/8/8/4Kppp/8 w - - 0 1"
var gameState = FenHelpers.Parse("8/PPP4k/8/8/8/8/4Kppp/8 w - - 0 1");
var board = Board.FromGameState(gameState);
var boardReference = Board.FromGameState(gameState);
var moves = new List <uint>(20);
var metrics = new Dictionary <int, PerftMetrics>();
var depth = 5;
perftRunner.Go(board, gameState.ToPlay, depth, metrics);
TestHelpers.AssertEqual(board, boardReference);
Assert.Equal(18, metrics[depth].Legal);
Assert.Equal(290, metrics[depth - 1].Legal);
Assert.Equal(5044, metrics[depth - 2].Legal);
Assert.Equal(89363, metrics[depth - 3].Legal);
Assert.Equal(1745545, metrics[depth - 4].Legal);
}
public void CinnamonChess_EnPassantPosition_Metrics_ToDepth5()
{
var perftRunner = new PerftRunnerMetrics(moveGeneratorFixture.MoveGenerator);
// "8/7p/p5pb/4k3/P1pPn3/8/P5PP/1rB2RK1 b - d3 0 28"
var gameState = FenHelpers.Parse("8/7p/p5pb/4k3/P1pPn3/8/P5PP/1rB2RK1 b - d3 0 28");
var board = Board.FromGameState(gameState);
var boardReference = Board.FromGameState(gameState);
var moves = new List <uint>(20);
var metrics = new Dictionary <int, PerftMetrics>();
var depth = 5;
perftRunner.Go(board, gameState.ToPlay, depth, metrics);
TestHelpers.AssertEqual(board, boardReference);
Assert.Equal(5, metrics[depth].Legal);
Assert.Equal(117, metrics[depth - 1].Legal);
Assert.Equal(3293, metrics[depth - 2].Legal);
Assert.Equal(67197, metrics[depth - 3].Legal);
Assert.Equal(1881089, metrics[depth - 4].Legal);
}
public void White_FourCaptures_OnePush_Correct()
{
var gameState = FenHelpers.Parse("K6k/8/8/8/8/p1p2p1p/1P4P1/8 w - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var move1 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.B2.ToSquare(), SquareFlag.B3.ToSquare(), PieceType.None, MoveType.Ordinary);
var move2 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.G2.ToSquare(), SquareFlag.G3.ToSquare(), PieceType.None, MoveType.Ordinary);
var captures = moves.Where(x => x.GetCapturePieceType() != PieceType.None);
var capture1 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.B2.ToSquare(), SquareFlag.A3.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture2 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.B2.ToSquare(), SquareFlag.C3.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture3 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.G2.ToSquare(), SquareFlag.F3.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture4 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.G2.ToSquare(), SquareFlag.H3.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
Assert.Contains(move1, moves);
Assert.Contains(move2, moves);
Assert.Contains(capture1, moves);
Assert.Contains(capture2, moves);
Assert.Contains(capture3, moves);
Assert.Contains(capture4, moves);
}
public void E4_16Moves_8Captures_Correct()
{
var gameState = FenHelpers.Parse("K7/8/2p1p1p1/8/2p1Q1p1/8/2p1p1p1/k7 w - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveCount = moves.Count;
var captureViews = GetCaptureMoveViews(moves);
var capture1 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.C6.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture2 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.E6.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture3 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.G6.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture4 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.C4.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture5 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.G4.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture6 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.C2.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture7 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.E2.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var capture8 = MoveBuilder.Create(Colour.White, PieceType.Queen, SquareFlag.E4.ToSquare(), SquareFlag.G2.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var captures = captureViews.Select(x => x.Value);
Assert.Contains(capture1, captures);
Assert.Contains(capture2, captures);
Assert.Contains(capture3, captures);
Assert.Contains(capture4, captures);
Assert.Contains(capture5, captures);
Assert.Contains(capture6, captures);
Assert.Contains(capture7, captures);
Assert.Contains(capture8, captures);
}
internal static void Main(string[] args)
{
Console.WriteLine("ChessSharp Perft");
Console.WriteLine("Initialising data");
var moveGenerator = new MoveGenerator(16);
var fenString = FenHelpers.Default;
var perftRunner = new PerftRunner(moveGenerator);
var gameState = FenHelpers.Parse(fenString);
var board = Board.FromGameState(gameState);
var boardReference = Board.FromGameState(gameState);
Console.WriteLine("Press any key to begin");
Console.ReadKey();
Console.WriteLine($"Starting perft for {fenString} depth 2");
PerftDepth(perftRunner, board, gameState, 2);
Console.WriteLine($"Starting perft for {fenString} depth 3");
PerftDepth(perftRunner, board, gameState, 3);
Console.WriteLine($"Starting perft for {fenString} depth 4");
PerftDepth(perftRunner, board, gameState, 4);
var results = new List <double>();
var iterations = 3;
#if DEBUG
iterations = 1;
#endif
for (var i = 0; i < iterations; i++)
{
Console.WriteLine($"Starting perft for {fenString} depth 5 - iteration {i + 1}");
var result = PerftDepth(perftRunner, board, gameState, 5);
results.Add(result);
}
var averageNps = results.Average();
Console.WriteLine($"Average nps: {Math.Floor(averageNps)}");
Console.WriteLine("Press any key to quit");
Console.ReadKey();
}
public void Fen_Parse_Position5_Correct()
{
var gameState = FenHelpers.Parse(FenHelpers.Position5);
Assert.Equal(Colour.White, gameState.ToPlay);
Assert.True(gameState.WhiteCanCastleKingSide);
Assert.True(gameState.WhiteCanCastleQueenSide);
Assert.False(gameState.BlackCanCastleKingSide);
Assert.False(gameState.BlackCanCastleQueenSide);
Assert.Equal((SquareFlag)0, gameState.EnPassant);
Assert.Equal(1, gameState.HalfMoveClock);
Assert.Equal(8, gameState.FullTurn);
}
public void Black_FourBlocked_NoMoves_Correct()
{
var gameState = FenHelpers.Parse("K6k/1p1p1p1p/1P1P1P1P/8/8/8/8/8 b - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveViews = GetPawnMoveViews(moves);
Assert.Empty(moveViews);
}
public void PawnPinnedByBishopButCanCapture(string fenString, int expectedMoveCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveViews = GetPawnMoveViews(moves);
Assert.Equal(expectedMoveCount, moveViews.Count);
}
public void A1_H8_0Capture(string fenString, int moveCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var movesViews = GetQueenMoveViews(moves);
Assert.Equal(moveCount, movesViews.Count);
}
public void KnightNotActuallyPinned(string fenString, int expectedMoveCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveViews = GetKnightMoveViews(moves);
Assert.Equal(expectedMoveCount, moveViews.Count);
}
public void EvadesCheckByKnight(string fenString, int expectedMovesCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(20);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveCount = moves.Count;
Assert.Equal(expectedMovesCount, moveCount);
}
public void AllDirectionsBlocked(string fenString, int expectedMoveCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveViews = GetRookMoveViews(moves);
Assert.Equal(expectedMoveCount, moveViews.Count);
}
public void AvoidsMovingIntoNonDiagonalCheck(string fenString, int expectedMovesCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(20);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var kingMoves = GetKingMoveViews(moves);
Assert.Equal(expectedMovesCount, kingMoves.Count());
}
public void Fen_Parse_Position2_Correct()
{
var gameState = FenHelpers.Parse(FenHelpers.Position2);
Assert.Equal(SquareFlag.E1, gameState.WhiteKing);
Assert.Equal(SquareFlag.E8, gameState.BlackKing);
Assert.Equal(Colour.White, gameState.ToPlay);
Assert.True(gameState.WhiteCanCastleKingSide);
Assert.True(gameState.WhiteCanCastleQueenSide);
Assert.True(gameState.BlackCanCastleKingSide);
Assert.True(gameState.BlackCanCastleQueenSide);
Assert.Equal((SquareFlag)0, gameState.EnPassant);
}
public void B2_21Moves_0Captures_Correct()
{
var gameState = FenHelpers.Parse("8/8/8/k7/8/8/1Q6/4K3 w - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var movesViews = GetQueenMoveViews(moves);
Assert.Equal(23, movesViews.Count);
}
public void Position3_Variants_EnPassantDiscovered(string fenString, int expectedMoveCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveViews = GetPawnMoveViews(moves);
Assert.Equal(expectedMoveCount, moveViews.Count);
}
public void DiscoverCheckRook2(string fenString)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(20);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveViews = GetPawnMoveViews(moves);
Assert.Equal(5, moveViews.Count);
}
public void FromCorners(string fenString, int expectedMovesCount)
{
// This is mainly checking the pawn check magic bitboards as it uses them
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(20);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveCount = moves.Count;
Assert.Equal(expectedMovesCount, moveCount);
}
public void Position3()
{
// "8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - -"
var gameState = FenHelpers.Parse(FenHelpers.Position3);
var board = Board.FromGameState(gameState);
var boardReference = Board.FromGameState(gameState);
var metrics = new Dictionary <int, PerftMetrics>();
var depth = 5;
var perftRunner = new PerftRunnerMetrics(moveGeneratorFixture.MoveGenerator);
perftRunner.Go(board, gameState.ToPlay, depth, metrics);
TestHelpers.AssertEqual(board, boardReference);
Assert.Equal(14, metrics[depth].Legal);
Assert.Equal(1, metrics[depth].Captures);
Assert.Equal(0, metrics[depth].EnPassantCaptures);
Assert.Equal(0, metrics[depth].Castles);
////Assert.Equal(2, metrics[depth].Checks);
Assert.Equal(191, metrics[depth - 1].Legal);
Assert.Equal(14, metrics[depth - 1].Captures);
Assert.Equal(0, metrics[depth - 1].EnPassantCaptures);
Assert.Equal(0, metrics[depth - 1].Castles);
////Assert.Equal(10, metrics[depth - 1].Checks);
Assert.Equal(2812, metrics[depth - 2].Legal);
Assert.Equal(209, metrics[depth - 2].Captures);
Assert.Equal(2, metrics[depth - 2].EnPassantCaptures);
Assert.Equal(0, metrics[depth - 2].Castles);
////Assert.Equal(267, metrics[depth - 2].Checks);
Assert.Equal(43238, metrics[depth - 3].Legal);
Assert.Equal(3348, metrics[depth - 3].Captures);
Assert.Equal(123, metrics[depth - 3].EnPassantCaptures);
Assert.Equal(0, metrics[depth - 3].Castles);
////Assert.Equal(1680, metrics[depth - 3].Checks);
Assert.Equal(674624, metrics[depth - 4].Legal);
Assert.Equal(52051, metrics[depth - 4].Captures);
Assert.Equal(1165, metrics[depth - 4].EnPassantCaptures);
Assert.Equal(0, metrics[depth - 4].Castles);
////Assert.Equal(52950, metrics[depth - 4].Checks);
}
public void EvadesDoubleCheck()
{
var gameState = FenHelpers.Parse("k7/2Q5/8/4p3/3K1P2/2q5/8/8 w - - 0 1");
var board = CreateBoard(gameState);
var moves = new List <uint>(20);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveCount = moves.Count;
Assert.Equal(3, moveCount);
Assert.Equal(2, moves.First().GetNumCheckers());
}
public void MidBoardOnlyOnePush(string fenString, SquareFlag toSquare)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var pawnMoveViews = GetPawnMoveViews(moves);
var pawnMoves = pawnMoveViews.Select(x => x.Value);
Assert.Collection(pawnMoves, x => Assert.Equal(toSquare, x.GetTo()));
}
public void DiscoverCheck(string fenString, SquareFlag fromSquare, SquareFlag toSquare)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(20);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveCount = moves.Count;
var illegalMove = MoveBuilder.Create(Colour.White, PieceType.Pawn, fromSquare.ToSquare(), toSquare.ToSquare(), PieceType.None, MoveType.Ordinary);
Assert.DoesNotContain(illegalMove, moves);
}
public void White_Capture()
{
var gameState = FenHelpers.Parse("K6k/8/8/8/8/3p4/4P3/8 w - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var capture = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.E2.ToSquare(), SquareFlag.D3.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
var movesView = moves.Select(x => new MoveViewer(x));
Assert.Contains(capture, moves);
}
public void White_EnPassant_Capture()
{
var gameState = FenHelpers.Parse("K6k/8/8/3Pp3/8/8/8/8 w - e6");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var enPassantCapture = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.D5.ToSquare(), SquareFlag.E6.ToSquare(), PieceType.Pawn, MoveType.EnPassant);
var movesView = moves.Select(x => new MoveViewer(x));
Assert.Contains(enPassantCapture, moves);
}
public void White_EnPassant_Capture_DiscoveredCheck()
{
var gameState = FenHelpers.Parse("8/8/8/q1rPp2K/8/7p/8/8 w - e6");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var enPassantCapture = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.D6.ToSquare(), SquareFlag.E7.ToSquare(), PieceType.Pawn, MoveType.EnPassant);
var movesView = moves.Select(x => new MoveViewer(x));
Assert.DoesNotContain(enPassantCapture, moves);
}
public void White_DiscoveredCheck()
{
var gameState = FenHelpers.Parse("8/2b5/3P4/4K3/8/8/8/7k w - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var illegalMove = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.D6.ToSquare(), SquareFlag.D7.ToSquare(), PieceType.None, MoveType.Ordinary);
var movesView = moves.Select(x => new MoveViewer(x));
Assert.DoesNotContain(illegalMove, moves);
}
public void Black_EightPawns_OneAndTwoPushes()
{
var gameState = FenHelpers.Parse("K6k/pppppppp/8/8/8/8/8/8 b - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
// Purely for debugging
var pawnMoves = GetPawnMoveViews(moves);
var moveA3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.A7.ToSquare(), SquareFlag.A6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveA4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.A7.ToSquare(), SquareFlag.A5.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveB3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.B7.ToSquare(), SquareFlag.B6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveB4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.B7.ToSquare(), SquareFlag.B5.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveC3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.C7.ToSquare(), SquareFlag.C6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveC4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.C7.ToSquare(), SquareFlag.C5.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveD3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.D7.ToSquare(), SquareFlag.D6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveD4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.D7.ToSquare(), SquareFlag.D5.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveE3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.E7.ToSquare(), SquareFlag.E6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveE4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.E7.ToSquare(), SquareFlag.E5.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveF3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.F7.ToSquare(), SquareFlag.F6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveF4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.F7.ToSquare(), SquareFlag.F5.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveG3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.G7.ToSquare(), SquareFlag.G6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveG4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.G7.ToSquare(), SquareFlag.G5.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveH3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.H7.ToSquare(), SquareFlag.H6.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveH4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.H7.ToSquare(), SquareFlag.H5.ToSquare(), PieceType.None, MoveType.Ordinary);
Assert.Contains(moveA3, moves);
Assert.Contains(moveA4, moves);
Assert.Contains(moveB3, moves);
Assert.Contains(moveB4, moves);
Assert.Contains(moveC3, moves);
Assert.Contains(moveC4, moves);
Assert.Contains(moveD3, moves);
Assert.Contains(moveD4, moves);
Assert.Contains(moveE3, moves);
Assert.Contains(moveE4, moves);
Assert.Contains(moveF3, moves);
Assert.Contains(moveF4, moves);
Assert.Contains(moveG3, moves);
Assert.Contains(moveG4, moves);
Assert.Contains(moveH3, moves);
Assert.Contains(moveH4, moves);
}
public void LargeOccupancyOneCapture(string fenString, int expectedMoveCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var moveViews = GetRookMoveViews(moves);
var captureViews = GetCaptureMoveViews(moves);
Assert.Equal(expectedMoveCount, moveViews.Count);
Assert.Equal(1, captureViews.Count);
}
public void Default_Metrics_ToDepth5()
{
var perftRunner = new PerftRunnerMetrics(moveGeneratorFixture.MoveGenerator);
// "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
var gameState = FenHelpers.Parse(FenHelpers.Default);
var board = Board.FromGameState(gameState);
var boardReference = Board.FromGameState(gameState);
var moves = new List <uint>(20);
var metrics = new Dictionary <int, PerftMetrics>();
var depth = 5;
perftRunner.Go(board, gameState.ToPlay, depth, metrics);
TestHelpers.AssertEqual(board, boardReference);
Assert.Equal(20, metrics[depth].Legal);
Assert.Equal(0, metrics[depth].Captures);
Assert.Equal(0, metrics[depth].EnPassantCaptures);
Assert.Equal(0, metrics[depth].Castles);
////Assert.Equal(0, metrics[depth].Checks);
Assert.Equal(400, metrics[depth - 1].Legal);
Assert.Equal(0, metrics[depth - 1].Captures);
Assert.Equal(0, metrics[depth - 1].EnPassantCaptures);
Assert.Equal(0, metrics[depth - 1].Castles);
////Assert.Equal(0, metrics[depth - 1].Checks);
Assert.Equal(8902, metrics[depth - 2].Legal);
Assert.Equal(34, metrics[depth - 2].Captures);
Assert.Equal(0, metrics[depth - 2].EnPassantCaptures);
Assert.Equal(0, metrics[depth - 2].Castles);
////Assert.Equal(12, metrics[depth - 2].Checks);
Assert.Equal(197281, metrics[depth - 3].Legal);
Assert.Equal(1576, metrics[depth - 3].Captures);
Assert.Equal(0, metrics[depth - 3].EnPassantCaptures);
Assert.Equal(0, metrics[depth - 3].Castles);
////Assert.Equal(12, metrics[depth - 3].Checks);
Assert.Equal(4865609, metrics[depth - 4].Legal);
}