Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: rook to f8 (f1·5)
Winning blow: pawn to g4 (h3·2)
Attack on the uncastled king: queen to d1 (c1)
Attack on the uncastled king: knight to e5 (f3·5)
Attack on the uncastled king: pawn to a7
Attack on the uncastled king: pawn to b3 (a2·13)
Attack on the uncastled king: knight to e4 (c3·4)
Attack on the uncastled king: bishop to g2 (f1·3)
Attack on the uncastled king: knight to h3 (f2·2)
Attack on the uncastled king: bishop to g2 (h1·4)
Attack on the uncastled king: king to b2 (c1·4)
Attack on the uncastled king: bishop to a6 (d3·3)
Attack on the uncastled king: queen to h4 (h1·2)
Winning blow: pawn to e3 (d2)
Winning blow: pawn to e4 (d3·4)
Attack on the uncastled king: knight to e5 (d3·4)
Winning blow: pawn to b5 (c4)
Winning blow: bishop to f8
Winning blow: knight to a6
Attack on the uncastled king: queen to e4 (e1·4)
Attack on the uncastled king: knight to a1 (b3)
Attack on the uncastled king: knight to a4 (c3·10)
Attack on the uncastled king: pawn to f3 (e2·4)
Attack on the uncastled king: bishop to b8 (f4·7)
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