Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: pawn to e4 (d3·14)
Attack on the uncastled king: bishop to a7 (f2)
Attack on the uncastled king: bishop to b7 (h1·2)
Winning blow: bishop to e4
Attack on the uncastled king: queen to a6 (e2)
Attack on the uncastled king: knight to e6 (c5·3)
Attack on the uncastled king: knight to d6 (f5·2)
Attack on the uncastled king: king to b2 (c1·3)
Attack on the uncastled king: knight to a2 (c1·2)
Attack on the uncastled king: pawn to a3 (b2·9)
Winning blow: pawn to e6 (d5·3)
Attack on the uncastled king: queen to h1 (g1)
Attack on the uncastled king: queen to h4 (h3·2)
Attack on the uncastled king: rook to b1 (e1)
Winning blow: king to d2
Attack on the uncastled king: queen to d2 (b2)
Attack on the uncastled king: rook to f5
Attack on the uncastled king: knight to h8
Attack on the uncastled king: knight to g2 (e3)
Winning blow: bishop to c1
Attack on the uncastled king: pawn to b3 (c2·4)
Attack on the uncastled king: knight to g7 (h5·4)
Winning blow: rook to d1 (e1)
Winning blow: bishop to e5 (a1)
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