Daily Chess Puzzle

Today’s problem is from the recent Olympiad in Batumi

Since the start of 2018, I have decided to 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

Mueller v Christianse, 24/9/18

Solution

1…Qf4! and White resigned; after 2 Qf4 Be5 White has to jettison his rool (3 Rd8+ Rd8[]) and Black then has three pieces for the Q:

FEN

r5k1/4ppbp/2n3p1/4N3/q4B2/4Q2P/1P1R1PP1/6K1 b – – 0 25