Daily Chess Puzzle

Today’s problem is from the March 1979 edition of Chess Magazine.

As is my custom, I only say 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.

White to play (variation)

A Karpov v R Huebner, Montreal 1979

Solution

Yesterday, I gave 1 Rg6, which wins, but 1 Qe3! is even stronger:

If 1…Bd8 (say) 2 Rh8+! and if 2…Kh8, 3 Qh6+ and mates.

FEN

6R1/3qb2k/1r4pp/p2Bp3/1p2P3/1P1Q2PP/P5K1/8 w – – 0 40