Mate in 5 — Problem #1998433
Black to move — find the mate
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一
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四
五
六
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九
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Show solution
▲２二桂成 △同 金 ▲１五桂 △同 歩 ▲１四銀
Why this move works
The answer is ▲２二桂成 △同金 ▲１五桂 △同歩 ▲１四銀. Two knight sacrifices are the key. ▲２二桂成 △同金 deflects a defending gold, ▲１五桂 △同歩 draws the pawn, and then ▲１四銀 mates.
Peeling off the defenders one by one with successive sacrifices, then finishing with the silver, is the technique — each capture quietly wrecks the defender’s shape.