Mate in 5 — Problem #1998415
🎯 Checkmate in 5 — your move
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9
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1
一
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四
五
六
七
八
九
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Show solution
▲４二桂成 △同 玉 ▲５一銀 △４一玉 ▲４二金
Why this move works
The answer is ▲４二桂成 △同玉 ▲５一銀 △４一玉 ▲４二金. ▲４二桂成 is a promote-and-sacrifice: letting the king capture it (△同玉) pulls it to 4二, ▲５一銀 drives it to 4一, and ▲４二金 finishes with a head gold defended by the silver on 5一.
Sacrificing a piece to cut off the king’s escape, then mating with gold, is the backbone here. The point of the sacrifice is to make the king move to a worse square by capturing.