It’s Your Move: daily chess puzzle #233

Black to play and win, after White plays 1 Rd5?

Teschner v Portisch, Monaco 1969

Solution

The sole question is ‘who back rank mates whom’ and, after examining the obvious captures and seeing they fail, the solution 1…Qf2! isn’t too hard to find. Clever defences like 2 Ng3 fail to 2…Qe1+!!

I said “not hard to find”: in the game, Black, a top class player, missed it, playing 1…Qa6, and the game was later drawn. It shows the fundamental difference between problems and real life games.

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