Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: knight to d6 (b5·9)
Winning blow: bishop to a8 (h1·5)
Attack on the uncastled king: bishop to e4 (d5·2)
Winning blow: queen to f6 (b2·5)
Winning blow: queen to d6 (b4·3)
Winning blow: knight to e3 (d1·4)
Attack on the uncastled king: pawn to e6 (f5·24)
Winning blow: rook to d3 (d1·2)
Winning blow: rook to g4 (c4)
Winning blow: pawn to c4 (d3·5)
Winning blow: rook to e8 (e1·9)
Winning blow: king to d5
Winning blow: queen to d6 (c7·2)
Winning blow: rook to f8 (f1·7)
Attack on the uncastled king: queen to f2 (g3·2)
Winning blow: rook to e2 (e1·6)
Attack on the uncastled king: bishop to f6 (a1·24)
Winning blow: rook to d8 (f8)
Winning blow: knight to e6 (c5·12)
Winning blow: bishop to f6 (g7·3)
Winning blow: rook to a8 (a1·9)
Winning blow: knight to d7 (f6·7)
Attack on the uncastled king: queen to c3 (g3)
Attack on the uncastled king: bishop to c7 (e5·4)
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