Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: rook to f5 (f2·2)
Winning blow: queen to h6 (h4)
Attack on the uncastled king: queen to a6 (b6)
Attack on the uncastled king: queen to g4 (h4)
Winning blow: queen to c6 (h1·3)
Attack on the uncastled king: queen to g8 (g3·3)
Attack on the uncastled king: rook to h4 (g4)
Winning blow: rook to d5 (b5)
Winning blow: queen to e2 (d3)
Winning blow: queen to c2 (d2)
Attack on the uncastled king: rook to f3 (f1)
Winning blow: queen to b2 (d2)
Winning blow: queen to h6 (h4·2)
Attack on the uncastled king: rook to b4 (b1·7)
Winning blow: queen to g8 (g3)
Winning blow: queen to d8 (d2)
Winning blow: queen to e2 (d1)
Winning blow: queen to e8 (e2·2)
Winning blow: rook to b4 (b3)
Winning blow: queen to c2 (c3·2)
Winning blow: queen to f6 (h4·2)
Attack on the uncastled king: queen to g3 (f2·2)
Winning blow: rook to b4 (b5)
Attack on the uncastled king: queen to e8 (e3)
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