challenging · rating 1651
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White to move. Opponent's last move: b1=Q.
advancedPawndeflectiondiscoveredCheckdoubleCheckendgamematemateIn2promotionshort
4260 plays
3 plies in the line
Reveal line
Opponent's last move: b1=Q
Solution: gxf8=Q+ → Kh7 → Qxf7#