Mate in 9 — Problem #3996376

Black to move — find the mate

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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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▲３三銀 △３一玉 ▲２二金 △４一玉 ▲４二銀成 △同　玉 ▲５二飛 △４一玉 ▲３二金

📖 Related reading

Finding the Key Move in Tsume Shogi: Tries, Red Herrings, and VariationsA tsume shogi problem has one correct first move (the key). Plenty of checks look like they mate but fail — 'tries'. How to reject the tries, find the key, and read the defender's variations to the best defense.