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);
}
private void BitboardSquaresTestHelper(Position position, int depth)
{
Assert.DoesNotThrow(position.AssertBitboardsMatchSquares);
if (depth <= 0)
{
return;
}
var moves = new List <Move>();
_moveGenerator.Generate(moves, position);
var tmpPosition = new Position();
foreach (var move in moves)
{
var updatedBoard = Position.MakeMove(tmpPosition, move, position);
if (!_moveGenerator.OnlyLegalMoves && updatedBoard.MovedIntoCheck())
{
continue;
}
BitboardSquaresTestHelper(updatedBoard, depth - 1);
}
}
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);
}
private void ApplyMove(Board board, Colour colour, MoveViewer move)
{
board.MakeMove(move.Value);
Ply++;
if (move.PieceType == PieceType.Pawn || move.CapturePieceType != PieceType.None)
{
HalfMoveClock = 0;
}
else
{
++HalfMoveClock;
}
var gameState = GetGameState();
var currentState = board.CurrentState;
var historyItem = new GameHistoryNode(currentState, gameState);
history.Push(historyItem);
if (historyItem.IsIrreversible)
{
drawBuffer.Clear();
}
else
{
drawBuffer.Add(historyItem);
}
var isDrawn = IsDrawn(HalfMoveClock, drawBuffer);
if (isDrawn)
{
Draw?.Invoke(this, new MoveAppliedEventArgs(move, gameState, Evaluate()));
return;
}
var moves = new List <uint>();
moveGenerator.Generate(board, colour.Opposite(), moves);
AvailableMoves = moves.Select(x => new MoveViewer(x));
if (!AvailableMoves.Any())
{
Checkmate?.Invoke(this, new MoveAppliedEventArgs(move, gameState, Evaluate()));
return;
}
MoveApplied?.Invoke(this, new MoveAppliedEventArgs(move, gameState, Evaluate()));
}
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 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 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 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 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 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 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 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 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 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 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_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 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 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 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 White_EightPawns_OneAndTwoPushes()
{
var gameState = FenHelpers.Parse("K6k/8/8/8/8/8/PPPPPPPP/8 w - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var pawnMoves = GetPawnMoveViews(moves);
var moveA3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.A2.ToSquare(), SquareFlag.A3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveA4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.A2.ToSquare(), SquareFlag.A4.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveB3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.B2.ToSquare(), SquareFlag.B3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveB4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.B2.ToSquare(), SquareFlag.B4.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveC3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.C2.ToSquare(), SquareFlag.C3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveC4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.C2.ToSquare(), SquareFlag.C4.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveD3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.D2.ToSquare(), SquareFlag.D3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveD4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.D2.ToSquare(), SquareFlag.D4.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveE3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.E2.ToSquare(), SquareFlag.E3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveE4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.E2.ToSquare(), SquareFlag.E4.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveF3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.F2.ToSquare(), SquareFlag.F3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveF4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.F2.ToSquare(), SquareFlag.F4.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveG3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.G2.ToSquare(), SquareFlag.G3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveG4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.G2.ToSquare(), SquareFlag.G4.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveH3 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.H2.ToSquare(), SquareFlag.H3.ToSquare(), PieceType.None, MoveType.Ordinary);
var moveH4 = MoveBuilder.Create(gameState.ToPlay, PieceType.Pawn, SquareFlag.H2.ToSquare(), SquareFlag.H4.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 Castle_BothSidesCreated()
{
var board = CreateBoard("r3k2r/8/8/8/8/8/8/R3K2R w KQkq - 0 1");
var moves = new List <uint>(10);
MoveGenerator.Generate(board, Colour.White, moves);
var moveCount = moves.Count;
var castleKing = moves.Where(x => x.GetMoveType() == MoveType.CastleKing);
var castleQueen = moves.Where(x => x.GetMoveType() == MoveType.CastleQueen);
var castleKingCount = castleKing.Count();
var castleQueenCount = castleQueen.Count();
Assert.Equal(1, castleKingCount);
Assert.Equal(1, castleQueenCount);
}
public void Castle_BlockedByPassingThroughCheck(string partialFen, int castleKingExpectedCount, int castleQueenExpectedCount)
{
var board = CreateBoard($"r3k2r/8/8/8/8/8/{partialFen}/R3K2R w KQkq - 0 1");
var moves = new List <uint>(10);
MoveGenerator.Generate(board, Colour.White, moves);
var moveCount = moves.Count;
var castleKing = moves.Where(x => x.GetMoveType() == MoveType.CastleKing);
var castleQueen = moves.Where(x => x.GetMoveType() == MoveType.CastleQueen);
var castleKingCount = castleKing.Count();
var castleQueenCount = castleQueen.Count();
Assert.Equal(castleKingExpectedCount, castleKingCount);
Assert.Equal(castleQueenExpectedCount, castleQueenCount);
}
public void E4_UnblockedCapture(string fenString, SquareFlag captureSquare, int expectedQueenMoveCount)
{
var gameState = FenHelpers.Parse(fenString);
var board = CreateBoard(fenString);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var queenMoves = GetQueenMoveViews(moves);
var captures = GetCaptureMoveViews(moves);
var capture1 = MoveBuilder.Create(gameState.ToPlay, PieceType.Queen, SquareFlag.E4.ToSquare(), captureSquare.ToSquare(), PieceType.Pawn, MoveType.Ordinary);
Assert.Equal(expectedQueenMoveCount, queenMoves.Count);
Assert.Contains(capture1, captures.Select(x => x.Value));
}
public void White_Capture_OneCapture_Promotion_Correct()
{
var gameState = FenHelpers.Parse("3nn3/3P4/8/8/8/8/8/K6k w - -");
var board = CreateBoard(gameState);
var moves = new List <uint>(10);
MoveGenerator.Generate(board, gameState.ToPlay, moves);
var promotion1 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.D7.ToSquare(), SquareFlag.E8.ToSquare(), PieceType.Knight, MoveType.PromotionQueen);
var promotion2 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.D7.ToSquare(), SquareFlag.E8.ToSquare(), PieceType.Knight, MoveType.PromotionRook);
var promotion3 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.D7.ToSquare(), SquareFlag.E8.ToSquare(), PieceType.Knight, MoveType.PromotionBishop);
var promotion4 = MoveBuilder.Create(Colour.White, PieceType.Pawn, SquareFlag.D7.ToSquare(), SquareFlag.E8.ToSquare(), PieceType.Knight, MoveType.PromotionKnight);
Assert.Contains(promotion1, moves);
Assert.Contains(promotion2, moves);
Assert.Contains(promotion3, moves);
Assert.Contains(promotion4, moves);
}
public void EvadesCheckByRook(string fenString, int expectedMovesCount, SquareFlag toSquare)
{
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);
var captureViews = GetCaptureMoveViews(moves);
var capture1 = MoveBuilder.Create(gameState.ToPlay, PieceType.King, SquareFlag.E4.ToSquare(), toSquare.ToSquare(), PieceType.Rook, MoveType.Ordinary, 1);
Assert.Equal(expectedMovesCount, kingMoves.Count());
Assert.Contains(capture1, captureViews.Select(x => x.Value));
}