Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: knight to e5
Attack on the uncastled king: knight to e8
Attack on the uncastled king: rook to b1
Attack on the uncastled king: knight to h5
Winning blow: bishop to d1
Attack on the uncastled king: rook to g4
Attack on the uncastled king: pawn to f4 (g3·4)
Attack on the uncastled king: king to c2 (b1)
Attack on the uncastled king: bishop to h8 (a1)
Attack on the uncastled king: queen to g4
Attack on the uncastled king: pawn to h3 (g2)
Attack on the uncastled king: bishop to f5
Attack on the uncastled king: bishop to a5
Attack on the uncastled king: queen to b5
Attack on the uncastled king: knight to f1
Attack on the uncastled king: pawn to c3 (b2·2)
Attack on the uncastled king: rook to d5
Attack on the uncastled king: bishop to h5 (e2)
Attack on the uncastled king: pawn to d4 (e3·2)
Attack on the uncastled king: bishop to c4 (d3)
Attack on the uncastled king: rook to g1 (e1)
Attack on the uncastled king: knight to c8 (d6)
Attack on the uncastled king: pawn to f4 (g3·5)
Attack on the uncastled king: bishop to e7 (c5)
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