Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: rook to e8 (e1·18)
Winning blow: rook to f1 (f5)
Winning blow: knight to d6 (e4·13)
Winning blow: queen to c4 (d4·4)
Winning blow: rook to c8 (b8)
Attack on the uncastled king: queen to f7 (f5·3)
Attack on the uncastled king: bishop to d6 (b4·4)
Winning blow: rook to c6 (c5)
Winning blow: queen to d8 (e7·3)
Winning blow: bishop to b7 (h1·6)
Winning blow: queen to f7 (g6·3)
Winning blow: rook to g7 (g6·4)
Winning blow: queen to c7 (b6·2)
Winning blow: queen to e8 (h5·4)
Attack on the uncastled king: rook to b2 (b1·15)
Winning blow: rook to h8 (h7·6)
Attack on the uncastled king: queen to f4 (d2·4)
Winning blow: bishop to h6 (e3·5)
Winning blow: rook to f8 (f6·3)
Winning blow: knight to c5 (a6·3)
Winning blow: knight to e6 (g7·11)
Winning blow: bishop to b7 (e4)
Winning blow: queen to a7 (a5·10)
Winning blow: queen to f6 (b6)
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