Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: queen to e4 (h1·2)
Attack on the uncastled king: knight to c6 (a5·2)
Attack on the uncastled king: rook to d6 (d1)
Winning blow: pawn to f3 (g2·2)
Attack on the uncastled king: queen to f1
Attack on the uncastled king: queen to a7
Attack on the uncastled king: bishop to g6 (e4)
Winning blow: knight to a3 (c2·2)
Winning blow: pawn to b5
Attack on the uncastled king: queen to e4 (e6)
Attack on the uncastled king: queen to c5 (c3)
Winning blow: rook to g5
Attack on the uncastled king: bishop to g2 (f1·2)
Attack on the uncastled king: bishop to g2 (h1)
Attack on the uncastled king: knight to f5 (g3·5)
Winning blow: bishop to e7
Winning blow: bishop to h4
Attack on the uncastled king: pawn to e4 (d3·10)
Attack on the uncastled king: bishop to h1
Attack on the uncastled king: knight to d4 (f3·2)
Attack on the uncastled king: bishop to c4 (f1·4)
Winning blow: pawn to b6 (a5)
Attack on the uncastled king: queen to a5
Attack on the uncastled king: queen to h7 (d3)
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