Test your chess: daily chess puzzle # 50

Black to play and win

W Berson v DM Macfarlane 1983

Solution

Just a bit of calculation required. It is obvious that the breakthrough has to be 1…Rf2+ and 2…Qh2+, the question is what to do after 3 Ke3? 3…Bg5+ is again the natural move, but what if white interposes his bishop with 4 Bf4?

I didn't solve this one instantly, but as soon as I saw 4…Be2, taking the bishop's feet from under him (in the sense that after 5 Qe2, 5…Qg3+ followed by taking on Bf4, and it is a mop up) I knew the problem was solved.

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