Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: pawn to e5 (d4·106)
Winning blow: bishop to h6 (d2·2)
Winning blow: pawn to h5 (g4)
Winning blow: knight to c5 (e6·4)
Winning blow: pawn to f5 (g4·6)
Attack on the uncastled king: bishop to e6 (c4·3)
Attack on the uncastled king: pawn to b7 (a6·4)
Winning blow: bishop to b7 (a6·2)
Winning blow: rook to h8 (d8)
Winning blow: queen to f8 (f3·2)
Winning blow: knight to f6 (g4·2)
Winning blow: bishop to e5 (b2·2)
Attack on the uncastled king: rook to h8 (h1·4)
Winning blow: knight to b4 (c2)
Winning blow: knight to b5 (d4)
Winning blow: king to d2 (c1·2)
Winning blow: knight to e5 (d3·6)
Winning blow: bishop to d4 (e5)
Winning blow: pawn to d5 (e4·12)
Attack on the uncastled king: rook to g6 (g3)
Winning blow: pawn to c5 (d4·8)
Attack on the uncastled king: bishop to g7 (a1·11)
Attack on the uncastled king: knight to c6 (b4·5)
Attack on the uncastled king: queen to c4 (c3·5)
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