challenging · rating 1619
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White to move. Opponent's last move: a2.
advancedPawnendgamematemateIn5pawnEndgamepromotionveryLongzugzwang
5114 plays
11 plies in the line
Reveal line
Opponent's last move: a2
Solution: Kc2 → g5 → hxg5 → h4 → g6 → h3 → g7 → h2 → g8=Q → h1=Q → Qg7#