Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: rook to g1 (g3·2)
Winning blow: king to h1 (g1·26)
Winning blow: king to f1 (e1·13)
Winning blow: bishop to d1 (b3)
Winning blow: pawn to c3 (c2·6)
Winning blow: bishop to b6 (g1·3)
Winning blow: bishop to c3 (d4)
Winning blow: bishop to d2 (e1·5)
Winning blow: pawn to f3 (f2·8)
Attack on the uncastled king: king to a2 (b1·9)
Winning blow: bishop to d6 (e5·5)
Winning blow: rook to e8 (e4·3)
Winning blow: queen to a3 (a2·2)
Winning blow: bishop to c3 (e1·3)
Attack on the uncastled king: queen to d4 (c4·2)
Winning blow: rook to a5 (f5)
Winning blow: king to b3 (c2)
Attack on the uncastled king: pawn to h7 (h6·3)
Winning blow: king to c1 (b2·6)
Winning blow: king to b1 (a1·4)
Winning blow: queen to h6 (d2·3)
Winning blow: knight to d1 (b2·2)
Winning blow: king to g2 (g1·10)
Winning blow: knight to e6 (c5·10)
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