Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: queen to c7 (a5·3)
Winning blow: queen to a3 (a2·3)
Winning blow: queen to f6 (f5·3)
Attack on the uncastled king: bishop to c6 (b7·4)
Winning blow: queen to g8 (h7·6)
Winning blow: queen to d7 (c6·4)
Winning blow: queen to e5 (e2)
Winning blow: queen to e7 (f7)
Winning blow: queen to b7 (f3·5)
Winning blow: rook to d7 (c7·3)
Castling-960 to the rescue on g1 (f1·4)
Winning blow: knight to e5 (d3·11)
Attack on the uncastled king: bishop to g6 (b1·13)
Attack on the uncastled king: queen to e4 (h1·9)
Winning blow: bishop to a6 (f1·5)
Attack on the uncastled king: bishop to h7 (e4)
Attack on the uncastled king: knight to b6 (c4·3)
Winning blow: queen to f8 (f2·3)
Winning blow: queen to f7 (f2·3)
Winning blow: rook to g7 (g3·3)
Winning blow: queen to e8 (g8)
Winning blow: knight to d5 (c3·8)
Winning blow: queen to h8 (d8)
Attack on the uncastled king: queen to e4 (h1·10)
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