Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: queen to c8 (c5·2)
Attack on the uncastled king: knight to f6 (d5·14)
Winning blow: rook to d8 (d5·4)
Winning blow: queen to a7 (a8·2)
Winning blow: queen to g7 (h7·5)
Attack on the uncastled king: bishop to b6 (f2·6)
Winning blow: rook to d7 (e7·3)
Winning blow: knight to d6 (e4·15)
Winning blow: bishop to a7 (b6·3)
Winning blow: queen to a7 (a6·3)
Winning blow: rook to d7 (d2·4)
Winning blow: rook to c6 (b6·2)
Winning blow: bishop to c8 (e6)
Winning blow: rook to d7 (e7·4)
Winning blow: queen to g8 (g6·5)
Winning blow: queen to h5 (d5)
Winning blow: queen to c6 (a8)
Winning blow: knight to b6 (a4·2)
Winning blow: bishop to g7 (e5·2)
Winning blow: rook to g7 (g3·9)
Winning blow: queen to b6 (g1·4)
Winning blow: queen to b7 (h1·5)
Winning blow: rook to d8 (d1·28)
Winning blow: queen to b4 (a3·2)
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