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CuckooChess: Back-ported Texel improvements to CuckooChess. +24 ELO against previous version after 1894 games at 60/6 time control.

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This commit is contained in:
Peter Osterlund
2012-07-15 10:39:23 +00:00
parent 6861e6d266
commit ab87bb9ae8
12 changed files with 292 additions and 185 deletions
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30
CuckooChessEngine/src/chess/Position.java
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@@ -529,22 +529,8 @@ public class Position {
*/
public final void makeSEEMove(Move move, UndoInfo ui) {
ui.capturedPiece = squares[move.to];
boolean wtm = whiteMove;
int p = squares[move.from];
long fromMask = 1L << move.from;
// Handle castling
if (((pieceTypeBB[Piece.WKING] | pieceTypeBB[Piece.BKING]) & fromMask) != 0) {
int k0 = move.from;
if (move.to == k0 + 2) { // O-O
setSEEPiece(k0 + 1, squares[k0 + 3]);
setSEEPiece(k0 + 3, Piece.EMPTY);
} else if (move.to == k0 - 2) { // O-O-O
setSEEPiece(k0 - 1, squares[k0 - 4]);
setSEEPiece(k0 - 4, Piece.EMPTY);
}
}
// Handle en passant
if (move.to == epSquare) {
@@ -558,7 +544,7 @@ public class Position {
// Perform move
setSEEPiece(move.from, Piece.EMPTY);
setSEEPiece(move.to, p);
whiteMove = !wtm;
whiteMove = !whiteMove;
}
public final void unMakeSEEMove(Move move, UndoInfo ui) {
@@ -566,20 +552,6 @@ public class Position {
int p = squares[move.to];
setSEEPiece(move.from, p);
setSEEPiece(move.to, ui.capturedPiece);
boolean wtm = whiteMove;
// Handle castling
int king = wtm ? Piece.WKING : Piece.BKING;
if (p == king) {
int k0 = move.from;
if (move.to == k0 + 2) { // O-O
setSEEPiece(k0 + 3, squares[k0 + 1]);
setSEEPiece(k0 + 1, Piece.EMPTY);
} else if (move.to == k0 - 2) { // O-O-O
setSEEPiece(k0 - 4, squares[k0 - 1]);
setSEEPiece(k0 - 1, Piece.EMPTY);
}
}
// Handle en passant
if (move.to == epSquare) {