Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: king to b3 (b2·3)
Winning blow: queen to f4 (g3·4)
Winning blow: pawn to d7 (d6·10)
Winning blow: king to g2 (h2·2)
Winning blow: knight to c3 (b1·4)
Winning blow: king to c4 (b5)
Winning blow: king to a1 (b1·24)
Winning blow: king to d2 (c1·19)
Winning blow: king to g2 (f1·17)
Winning blow: knight to f1 (g3·3)
Winning blow: knight to a5 (b3·4)
Attack on the uncastled king: rook to f1 (e1·4)
Winning blow: knight to g4 (e3·3)
Winning blow: king to d2 (c1·20)
Winning blow: pawn to f7 (f6·12)
Winning blow: queen to h6 (e3)
Winning blow: king to e2 (d1·24)
Winning blow: king to f1 (g1·27)
Winning blow: pawn to c4 (c2·5)
Winning blow: pawn to g8 (g7)
Winning blow: king to g1 (h1·8)
Attack on the uncastled king: pawn to f3 (f2·6)
Winning blow: king to d1 (e1·16)
Winning blow: pawn to d5 (d4·10)
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