B&B innkeeper and retired computer geek by day. Amateur astronomer, Ingress agent, reader, gamer, player of chess, Go, and Texas 42 by night. English: He / Him / His; Texas: Y’all / Y’all / Y’alls
Now that you mention it, I did make a mistake on the FEN by not indicating castling was possible. Regarding chess problems in general, if the King and Rook are in their original positions, it is assumed castling is allowed unless prohibited by the problem instructions.
November 3, 2025 at 3:06 PM
Now that you mention it, I did make a mistake on the FEN by not indicating castling was possible. Regarding chess problems in general, if the King and Rook are in their original positions, it is assumed castling is allowed unless prohibited by the problem instructions.