unintended solution; unexpected checkmate; wrong move order
Shogi term for a puzzle (tsumeshogi) where the composer's intended solution is not the only one, or where the solver finds a different, often unintended, checkmate sequence or move order.
See also: 詰め将棋
この詰将棋には余詰があるので、修正が必要だ。
This tsumeshogi puzzle has an unintended solution, so it needs to be corrected.
余詰を防ぐために、作者は慎重
To prevent unintended checkmates, the composer carefully considers the piece arrangement.
Variant spelling with okurigana, also seen in shogi contexts.
Compound of 余 (yo, 'extra, surplus') and 詰 (zume, 'checkmate'). The term is specific to shogi puzzle composition.