challenging · rating 1709
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Black to move. Opponent's last move: Kc2.
advancedPawncrushingendgameknightEndgamelongpromotionsacrifice
4659 plays
5 plies in the line
Reveal line
Opponent's last move: Kc2
Solution: b3+ → Kxd2 → a2 → Kc3 → a1=Q+