XCopyArea(xDisplay, xBoardWindow, player.saveBuf, player.blitGC,
corner.x, corner.y, squareSize, squareSize,
0, 0); // [HGM] zh: unstack in stead of grab
+ if(gatingPiece != EmptySquare) {
+ /* Kludge alert: When gating we want the introduced
+ piece to appear on the from square. To generate an
+ image of it, we draw it on the board, copy the image,
+ and draw the original piece again. */
+ ChessSquare piece = boards[currentMove][boardY][boardX];
+ DrawSquare(boardY, boardX, gatingPiece, 0);
+ XCopyArea(xDisplay, xBoardWindow, player.saveBuf, player.blitGC,
+ corner.x, corner.y, squareSize, squareSize, 0, 0);
+ DrawSquare(boardY, boardX, piece, 0);
+ }
damage[0][boardY][boardX] = True;
} else {
player.dragActive = False;