Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: rook to e7 (e1·2)
Winning blow: rook to e6 (e3·2)
Winning blow: bishop to e8 (b5·2)
Winning blow: queen to c6 (d5)
Winning blow: pawn to d3 (e2·2)
Winning blow: bishop to a6 (f1·3)
Winning blow: knight to e3 (c2)
Winning blow: bishop to e7 (f6)
Winning blow: rook to a8 (a1·5)
Attack on the uncastled king: queen to d6 (d1·2)
Winning blow: knight to c8 (d6·7)
Attack on the uncastled king: queen to b8 (b5)
Winning blow: knight to d7 (f6·6)
Attack on the uncastled king: knight to c7 (d5·19)
Winning blow: queen to d5 (a8)
Winning blow: pawn to b5 (a4·7)
Winning blow: queen to b2 (a3·3)
Winning blow: pawn to g7 (h6)
Attack on the uncastled king: rook to a5 (a1·6)
Winning blow: knight to g6 (e7·3)
Winning blow: queen to e6 (a2)
Winning blow: rook to b6 (b5)
Attack on the uncastled king: knight to d4 (f3·11)
Attack on the uncastled king: knight to d3 (c1·2)
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