Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: rook to b7 (b4)
Attack on the uncastled king: bishop to g7 (b2·10)
Winning blow: rook to g8 (g1·13)
Winning blow: rook to f8 (f2·3)
Winning blow: queen to h8 (h6·2)
Winning blow: bishop to b7 (h1·8)
Winning blow: rook to c7 (c3·3)
Winning blow: rook to d5 (b5·2)
Attack on the uncastled king: bishop to c7 (g3·2)
Winning blow: queen to c7 (c5·3)
Winning blow: queen to f7 (f3·5)
Winning blow: queen to e6 (f5·3)
Winning blow: queen to d6 (g6·2)
Winning blow: queen to h7 (c2·3)
Winning blow: rook to b7 (c7·4)
Attack on the uncastled king: queen to f7 (f5·4)
Attack on the uncastled king: rook to b6 (b1·3)
Attack on the uncastled king: queen to b6 (b3)
Mate in 1: knight to h6 (f5·2)
Mate in 1: rook to c1 (e1)
Back-rank mate in 3 on f2 (f6·3)
Discovered attack: knight to f3 (e5·3)
Mate in 1: rook to h1 (h2)
Back-rank mate in 3 on f2 (d2)
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