IEnumerable <int> GetPreOrderedMoves()
{
board.TestInCheck(board.ToMove);
int[] moves = new int[200];
int all = board.GetMoves(0, moves);
List <KeyValuePair <int, int> > orderedList = new List <KeyValuePair <int, int> >();
foreach (var move in moves.Take(all))
{
orderedList.Add(new KeyValuePair <int, int>(move, -AlphaBeta(2, -INFINITE, INFINITE)));
}
return(orderedList.OrderByDescending(k => k.Value).Select(k => k.Key));
}
public static GameEnded ReportEndGame(IChessBoard board)
{
int[] Moves = new int[500];
int cnt = board.GetMoves(0, Moves);
if (cnt == 0)
{
if (board.TestInCheck(Side.Black))
{
return(GameEnded.WhiteMate);
}
if (board.TestInCheck(Side.White))
{
return(GameEnded.BlackMate);
}
return(GameEnded.Draw);
}
return(GameEnded.None);
}
public static string ProduceShortAlgebraicString(IChessBoard board, int p)
{
board.TestInCheck(board.ToMove);
int [] moves = new int[200];
board.GetMoves(0, moves);
List <int> possibles = new List <int>();
int end = MovePackHelper.GetEndSquare(p);
foreach (var m in moves)
{
if (GetEndSquare(m) == end && board.BoardArray[GetStartSquare(m)].Type == board.BoardArray[GetStartSquare(p)].Type)
{
possibles.Add(p);
}
}
StringBuilder sb = new StringBuilder();
var spiece = board.BoardArray[GetStartSquare(p)];
if (spiece.Type != PieceType.Pawn)
{
sb.Append(spiece.ToString().ToUpper());
}
if (possibles.Count > 1)
{
var squares = possibles.Select(k => GetSquareString(GetStartSquare(k)));
if (squares.Select(k => k[0]).Distinct().Count() > 1)
{
sb.Append(GetSquareString(GetStartSquare(p))[0]);
}
else if (squares.Select(k => k[1]).Distinct().Count() > 1)
{
sb.Append(GetSquareString(GetStartSquare(p))[1]);
}
else
{
sb.Append(GetSquareString(GetStartSquare(p)));
}
}
if (HasCapture(p))
{
sb.Append("x");
}
sb.Append(GetSquareString(GetEndSquare(p)));
board.Move(p);
board.TestInCheck(board.ToMove);
int cnt = board.GetCheckCount(board.ToMove);
if (cnt > 0)
{
int[] tmp = new int[200];
if (0 == board.GetMoves(0, tmp))
{
sb.Append("#");
}
else
{
sb.Append(new string('+', cnt));
}
}
board.UndoMove();
return(sb.ToString());
}