Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: rook to e7 (e2)
Attack on the uncastled king: knight to e6 (g5·11)
Winning blow: rook to a4 (a1)
Attack on the uncastled king: bishop to f6 (a1·22)
Winning blow: pawn to e6 (f5·4)
Winning blow: queen to a3 (a2)
Winning blow: rook to d1 (e1·5)
Winning blow: knight to e6 (c5·8)
Winning blow: pawn to d6 (e5·8)
Attack on the uncastled king: knight to d6 (b5·11)
Winning blow: bishop to f4 (c7)
Winning blow: pawn to g3 (h2·11)
Winning blow: knight to g7 (f5·5)
Winning blow: pawn to b3 (a2·11)
Winning blow: knight to e7 (d5·16)
Attack on the uncastled king: king to a3
Winning blow: bishop to h6 (f4)
Winning blow: rook to c6 (c1·5)
Winning blow: knight to a1 (c2)
Winning blow: bishop to h3 (f1)
Winning blow: bishop to b8 (g3)
Attack on the uncastled king: rook to h3 (g3·2)
Winning blow: rook to e7 (e3)
Attack on the uncastled king: rook to g1 (f1·5)
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