Method placeKnight

src/main/java/game/Board.java:181–187

(final int row, final int col, final Color color)

    }

    public void placeKnight(final int row, final int col, final Color color) {
        final Cell position = Cell.get(row, col);
        final Piece knight = Piece.get(color, position, PieceType.KNIGHT);
        pieces.put(position, knight);
        playerPieces.get(color).add(knight);
        updateHashForAddition(knight);
    }

    public List<Move> getLegalMoves() {
        final Piece king = getKing(playerToMove);