Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: rook to g6
Attack on the uncastled king: knight to h2 (f3)
Attack on the uncastled king: pawn to h6 (g5·2)
Winning blow: pawn to h4
Winning blow: queen to g8 (c4)
Winning blow: rook to h2
Attack on the uncastled king: knight to h3 (f2)
Winning blow: king to e1 (f2)
Attack on the uncastled king: king to f2 (g1·3)
Winning blow: queen to b1
Winning blow: queen to f5
Attack on the uncastled king: queen to d6 (e7)
Attack on the uncastled king: knight to d1 (c3)
Attack on the uncastled king: bishop to c4 (f1·3)
Winning blow: knight to e8
Attack on the uncastled king: knight to f2
Attack on the uncastled king: knight to e2 (d4)
Winning blow: bishop to f5 (e4)
Attack on the uncastled king: king to h2
Attack on the uncastled king: bishop to a8 (h1·5)
Attack on the uncastled king: knight to c3
Attack on the uncastled king: queen to a8 (a5)
Attack on the uncastled king: bishop to f2
Winning blow: bishop to g7 (a1)
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