toP = boards[currentMove][y][x];
frc = appData.fischerCastling || gameInfo.variant == VariantSChess;
if( (killX < 0 || x != fromX || y != fromY) && // [HGM] lion: do not interpret igui as deselect!
- legal[y][x] == 0 && // if engine told we can move to here, do it even if own piece
+ marker[y][x] == 0 && // if engine told we can move to here, do it even if own piece
((WhitePawn <= fromP && fromP <= WhiteKing &&
WhitePawn <= toP && toP <= WhiteKing &&
!(fromP == WhiteKing && toP == WhiteRook && frc) &&
if(gatingPiece != EmptySquare && gameInfo.variant == VariantSChess) promoChoice = ToLower(PieceToChar(gatingPiece));
- if (HasPromotionChoice(fromX, fromY, toX, toY, &promoChoice, appData.sweepSelect)) {
+ if(legal[toY][toX] == 2) promoChoice = ToLower(PieceToChar(defaultPromoChoice)); // highlight-induced promotion
+
+ if (legal[toY][toX] == 2 || HasPromotionChoice(fromX, fromY, toX, toY, &promoChoice, appData.sweepSelect)) {
SetHighlights(fromX, fromY, toX, toY);
MarkTargetSquares(1);
if(gameInfo.variant == VariantSuper || gameInfo.variant == VariantGreat || gameInfo.variant == VariantGrand) {