Mate in 9 — Problem #3996311
🎯 Checkmate in 9 — your move
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9
8
7
6
5
4
3
2
1
一
二
三
四
五
六
七
八
九
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Show solution
▲7四桂 △5二玉 ▲3二龍 △5一玉 ▲5二香 △同 金 ▲6二銀 △同 金 ▲同 桂成
Why this move works
The answer is ▲7四桂 △5二玉 ▲3二龍 △5一玉 ▲5二香 △同金 ▲6二銀 △同金 ▲同桂成. Sacrifice knight, lance, and silver in turn to deflect the defending gold, then promote the knight for mate — a nine-move tsume.
▲5二香 △同金 and ▲6二銀 △同金 tap the gold twice to wreck the defense; the 7四 knight then promotes onto 6二 with check, and the dragon on 3二 defends it so the king cannot capture. Breaking the defense with successive sacrifices is the backbone.