Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: king to d2 (d3·2)
Winning blow: pawn to b4 (b2·4)
Attack on the uncastled king: queen to e6 (f5)
Attack on the uncastled king: bishop to e4 (h1·11)
Attack on the uncastled king: bishop to e4 (a8)
Winning blow: king to c1 (b1·17)
Winning blow: king to a2 (b1·25)
Attack on the uncastled king: king to g3 (f2)
Attack on the uncastled king: pawn to f3 (f2·4)
Attack on the uncastled king: rook to g1 (h1·6)
Attack on the uncastled king: rook to h4 (f4)
Winning blow: bishop to d4 (e3·4)
Winning blow: king to f3 (e4·2)
Winning blow: queen to h1 (g1)
Winning blow: bishop to d5 (h1·14)
Attack on the uncastled king: bishop to b4 (e1·9)
Attack on the uncastled king: pawn to f7 (f6·2)
Winning blow: pawn to a7 (a6·5)
Winning blow: pawn to e6 (e5·5)
Winning blow: king to h3 (g2·5)
Attack on the uncastled king: king to e1 (e2)
Attack on the uncastled king: bishop to h5 (d1·22)
Winning blow: king to g1 (f2·9)
Attack on the uncastled king: pawn to b7 (b6·3)
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