Mate in 7 — Problem #2997242
🎯 Checkmate in 7 — your move
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9
8
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2
1
一
二
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四
五
六
七
八
九
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Show solution
▲８二金打 △同 飛 ▲同 金 △同 玉 ▲８一飛 △９二玉 ▲８二金
Why this move works
The answer is ▲８二金打 △同飛 ▲同金 △同玉 ▲８一飛 △９二玉 ▲８二金, tapping a gold on 8二 twice. ▲８二金打 △同飛 deflects the defending rook, ▲同金 △同玉 drags the king out to 8二, and after ▲８一飛 △９二玉, ▲８二金 mates, anchored by the rook on 8一.
Luring the obstructing rook away with the gold, pulling the king onto the poor square 8二, then mating with a gold backed by the rook — replacing pieces on the same square to peel off the defenders one at a time is the technique.