challenging · rating 1700
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Black to move. Opponent's last move: Qe7.
endgamematemateIn4queenEndgameveryLong
1988 plays
7 plies in the line
Reveal line
Opponent's last move: Qe7
Solution: g3+ → fxg3 → fxg3+ → Kg1 → Qb1+ → Qe1 → Qxe1#