Solution
27. axb5 ♜xa1 28. ♜xa1 ♛xb5 29. ♜a8+ ♚d7 30. ♜xh8 d4+ 31. ♚g1
The position
This advanced puzzle (rating 2067) asks White to move to find the winning idea. It features these themes: Skewer, Middlegame.
It is White to move. Look for the tactic hiding in the position — Skewer, Middlegame. 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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