Chess960 position 406

The back rank is R Q B N N B K R. The king starts on g1, the rooks on a1 and h1, the bishops on c1 and f1, the queen on b1.

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

Castling short, the king stays on g1 and the rook goes from h1 to f1.

Castling long, the king goes from g1 to c1 and the rook goes from a1 to d1.

One thing about castling here surprises people: castling short leaves the king where it already stands on g1; only the rook moves.

A rook sits in the corner on a1, so bringing it into the game is usually a reason to castle early.

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 406 on Play CPU. To train tactics on positions like it, use the Chess960 puzzle trainer.