Gen
Mate in 7. Every move must be check.
Gen
987654321abcdefghiNRSK+SPPPG+BPPLP
You
Your move.

Mate in 7 · puzzle T001148

Tsume shogi #1148: mate in 7

Black to move and checkmate in 7 (4 of your moves and 3 replies). Black has gold, knight, 6 pawns in hand. The White king stands on 4b. The solution uses a drop. Every one of your moves must give check, and White always chooses the reply that lasts longest.

Difficulty ★★★★☆ · tap a piece, then a square. Pieces in your hand can be dropped.

Solution (tap to reveal)
  1. ▲ +B-6d — The horse moves to 6d, check.
  2. △ K-5b — The king escapes to 5b.
  3. ▲ G*5c — Drop a gold on 5c, check.
  4. △ K-6a — The king escapes to 6a.
  5. ▲ +Bx7c — The horse captures on 7c, check.
  6. △ K-7a — The king escapes to 7a.
  7. ▲ G-6b — The gold moves to 6b — checkmate. (2 other final moves also mate.)

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