Daily chess puzzle

Today’s problem was from my Cambridge University days, marking the fact that, for the first time in many years, I am visiting my alma mater this weekend.

As has been my custom on this blog for a while, I adopt the style of only saying which side is to play: and not giving an idea if the move wins or otherwise, unless on occasion I think signposting would be helpful. Instead, the problems are posed with the instruction to decide what you would play, as in a game.

Black to play

Tim Mortimer v Allan Beardsworth, Cambridge University Championships, 10/2/1984

Solution

1…Qg3, and White resigned: probably my shortest ever victory.

FEN

r1b1k2r/bppp1ppp/p7/4n3/2P1P1nq/1N5P/PPB1QPP1/RNB2RK1 b kq – 0 11