Mate in 3 — Problem #1000011
Black to move — find the mate
☖
9
8
7
6
5
4
3
2
1
一
二
三
四
五
六
七
八
九
☗
Show solution
▲５三角 △５二玉 ▲４一馬
Why this move works
The answer is ▲５三角 △５二玉 ▲４一馬, a three-move mate of the kind that appears in real games. The bishop drop ▲５三角 checks, the king escapes to 5二, and then ▲４一馬 brings the horse into play.
The bishop on 5三 and the horse on 4一 catch the king on 5二 in a crossfire, while the king’s own pieces (4三, 6一, 6三) wall off its remaining escapes. Overlapping the reach of major pieces is a very practical way to finish.