Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: knight to d4 (b3·19)
Attack on the uncastled king: pawn to c3 (d2·13)
Attack on the uncastled king: bishop to f8 (c5·4)
Winning blow: knight to g8 (e7·2)
Winning blow: rook to e5 (e4)
Attack on the uncastled king: bishop to g5 (h4·4)
Attack on the uncastled king: queen to f6 (a1·2)
Attack on the uncastled king: knight to d2 (f3)
Attack on the uncastled king: knight to c7 (b5·13)
Attack on the uncastled king: bishop to d4 (a1·14)
Attack on the uncastled king: bishop to c6 (h1·9)
Attack on the uncastled king: pawn to f5 (g4·20)
Winning blow: bishop to e6 (b3)
Attack on the uncastled king: knight to f6 (g4·3)
Attack on the uncastled king: rook to h8 (h1·2)
Attack on the uncastled king: bishop to h6 (e3·3)
Winning blow: knight to c4 (e3)
Winning blow: pawn to c7 (d6)
Winning blow: rook to e2
Winning blow: pawn to f3 (g2·9)
Winning blow: knight to e7 (f5)
Attack on the uncastled king: bishop to h8 (a1·26)
Attack on the uncastled king: pawn to g3 (h2·27)
Winning blow: knight to e7 (d5·3)
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