Christmas Puzzles 5 – Rotary problems
29/12/2025 - In rotary problems the board is rotated by 180° for a second position with a different solution. It is usually pawns that make a different when you turn the board around. Or the king/queen positions, or castling is involved. Can one devise problems where these factors do not play a role? Yes one can, as our expert for out-of-the-box problems, Werner Keym, proves. Photo: ChessBase