Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: pawn to e5 (d4·12)
Winning blow: queen to f7 (f4)
Winning blow: queen to e6 (a6)
Attack on the uncastled king: bishop to e5 (g7)
Attack on the uncastled king: pawn to g5 (h4·25)
Winning blow: queen to c6 (g2)
Attack on the uncastled king: pawn to f5 (e4·66)
Winning blow: knight to b6 (c4)
Winning blow: knight to f6 (d5·2)
Winning blow: knight to c5 (e4)
Winning blow: knight to b5 (c3·4)
Winning blow: pawn to c3 (b2·9)
Winning blow: queen to a5 (a8)
Attack on the uncastled king: knight to b3 (c5)
Attack on the uncastled king: rook to c4 (c1·8)
Winning blow: queen to e1 (b1)
Attack on the uncastled king: knight to c6 (a5·3)
Winning blow: bishop to g6 (b1·5)
Attack on the uncastled king: knight to e7 (f5·9)
Winning blow: queen to c6 (e4)
Attack on the uncastled king: queen to a8 (c6)
Winning blow: queen to b7 (b8)
Winning blow: bishop to d5 (h1·4)
Attack on the uncastled king: bishop to h8 (d4·6)
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