4 ms·
Ah my bad. I wrote hastily and did not consider the full implication of the word `forced`, i.e. it would involve proving the opponent has no winning options.
by aan1092j 5y ago
Ah my bad. I wrote hastily and did not consider the full implication of the word `forced`, i.e. it would involve proving the opponent has no winning options.
- red_trumpet 5y agoWhere "winning" means "surviving for N+1 moves".
- chaboud 5y agoMate can be forced in N moves. This generally requires involvement of the king (e.g., check, no other pieces, guarding of the king) such that the only legal moves remaining are dictated by the positioning of the attacker.