Solution
39. ♜d1 ♝d5 40. ♞xd5 exd5 41. ♜xd5 ♜xd5 42. h7 ♚e7 43. h8=♛
The position
This intermediate puzzle (rating 1589) asks White to move to find the winning idea. It features these themes: Promotion, Sacrifice.
It is White to move. Look for the tactic hiding in the position — Promotion, Sacrifice. 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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