Solution
39. ♝f4+ g5 40. ♛e6+ ♚h5 41. g4+ fxg4 42. hxg4+ ♚h4 43. ♝g3#
The position
This advanced puzzle (rating 2118) asks White to move to find the winning idea. It features these themes: Mate in 5.
It is White to move. Look for the tactic hiding in the position — Mate in 5. Drag a piece on the board to play your move; the puzzle will tell you if you found the best continuation.
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