Chess960 position 90

The back rank is N N R K B B R Q. The king starts on d1, the rooks on c1 and g1, the bishops on e1 and f1, the queen on h1.

White has twenty legal first moves, the same as in ordinary chess.

Castling short, the king goes from d1 to g1 and the rook goes from g1 to f1.

Castling long, the king goes from d1 to c1 and the rook goes from c1 to d1.

The pawn on a2, b2 starts with no defender at all.

Every rule of chess applies here unchanged apart from castling, which the rules page explains in full. To play this exact arrangement against the computer, open position 90 on Play CPU. To train tactics on positions like it, use the Chess960 puzzle trainer.