Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: bishop to d3 (b1·6)
Winning blow: queen to e4 (b1·3)
Winning blow: king to h1 (g1·34)
Attack on the uncastled king: bishop to e3 (c1·7)
Attack on the uncastled king: queen to h7 (h6·2)
Winning blow: king to d2 (d1·9)
Attack on the uncastled king: king to d2 (c1·10)
Winning blow: king to c2 (d1·20)
Winning blow: king to a2 (b1·36)
Winning blow: knight to e5 (d3·20)
Winning blow: king to b2 (c3·3)
Winning blow: rook to c3 (b3·3)
Winning blow: pawn to c6 (c5·7)
Winning blow: bishop to g3 (f2)
Winning blow: rook to f2 (g2)
Winning blow: pawn to h7 (h6·4)
Winning blow: pawn to g8 (g7·2)
Winning blow: king to b2 (b3)
Attack on the uncastled king: rook to h1 (g1·19)
Winning blow: king to h3 (g2·6)
Attack on the uncastled king: rook to g1 (f1·7)
Attack on the uncastled king: king to d1 (c1·11)
Attack on the uncastled king: bishop to d2 (c1·3)
Winning blow: queen to d4 (d1·4)
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