Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: bishop to b1 (d3)
Attack on the uncastled king: bishop to d6 (g3·3)
Winning blow: bishop to a8 (d5)
Attack on the uncastled king: bishop to b2 (a1·3)
Attack on the uncastled king: knight to e6 (c5·5)
Attack on the uncastled king: bishop to e4 (h1·4)
Winning blow: bishop to e8 (b5)
Attack on the uncastled king: queen to b7 (h1·2)
Winning blow: queen to c7
Attack on the uncastled king: bishop to a8 (f3)
Winning blow: queen to f1 (e1)
Winning blow: bishop to a8 (h1·3)
Attack on the uncastled king: bishop to a8 (e4·4)
Attack on the uncastled king: knight to d4 (e2·4)
Winning blow: king to f1 (g1)
Attack on the uncastled king: king to c2 (b1·5)
Attack on the uncastled king: pawn to a4 (b3·5)
Attack on the uncastled king: queen to b3 (d1·2)
Attack on the uncastled king: pawn to f5 (g4·7)
Winning blow: knight to h8 (f7)
Attack on the uncastled king: queen to c5 (c2·2)
Attack on the uncastled king: bishop to b7 (e4·2)
Winning blow: queen to c1
Attack on the uncastled king: knight to c5 (b3·6)
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