Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: knight to e7 (d5·6)
Winning blow: knight to e1 (d3)
Attack on the uncastled king: queen to c2 (c1·3)
Attack on the uncastled king: queen to h6 (g5)
Attack on the uncastled king: pawn to e3 (f2·17)
Winning blow: rook to f1 (c1)
Winning blow: rook to c7 (c1·3)
Winning blow: pawn to c4 (d3)
Winning blow: rook to c7 (c8)
Winning blow: knight to e5 (d3·5)
Winning blow: pawn to e5 (f4·12)
Winning blow: queen to b4 (d2)
Attack on the uncastled king: rook to d5 (d1·2)
Attack on the uncastled king: bishop to c6 (b5·2)
Winning blow: bishop to d6 (b4)
Winning blow: king to f2 (g1)
Winning blow: rook to a3
Winning blow: knight to d7 (f6·3)
Winning blow: king to b2 (a1)
Winning blow: rook to c1 (d1)
Winning blow: pawn to b3 (a2·8)
Attack on the uncastled king: pawn to g5 (h4·26)
Winning blow: knight to d6 (e4·2)
Attack on the uncastled king: queen to d3 (d1)
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