It’s Your Move: daily chess puzzle # 101

Black to play and win

Vorberger v Scholz Austria 1964

Solution

1…Qa2 is the first try, trying to exploit the back rank mate threat (the Ra1 is tied to defending the Bc1) but it doesn't quite work.

Instead, the move order needs refining, as is so often the case. 1…Bf3! and if 2 Qf3 Qa2 now does work, since e1 isn't sufficiently protected.

The second point of the position is that if instead 2 gf then 2…Rc1+ 3 Rc1[] Qg5+ is a double attack and the LPDO Rc1 drops off.

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