Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Mate in 3: queen to h5 (d1)
Mate in 1: bishop to f3 (e2)
Winning blow: rook to b7 (c7·3)
Attack on the uncastled king: queen to e4 (d4·3)
Winning blow: queen to e1 (h4·2)
Winning blow: knight to b6 (c4·12)
Attack on the uncastled king: rook to g7 (g3·2)
Attack on the uncastled king: queen to e8 (e7·3)
Winning blow: knight to f6 (h5·13)
Winning blow: bishop to b2 (a1·5)
Winning blow: rook to c6 (d6)
Attack on the uncastled king: rook to d8 (d4·4)
Winning blow: queen to d8 (d4·2)
Winning blow: knight to c6 (d4·12)
Winning blow: rook to c2 (c1·6)
Winning blow: queen to c6 (c3·6)
Winning blow: rook to e7 (e3·4)
Winning blow: rook to f7 (g7·6)
Attack on the uncastled king: queen to b7 (b5)
Winning blow: queen to e7 (f8·4)
Winning blow: queen to b3 (h3·2)
Attack on the uncastled king: queen to c7 (h2·3)
Attack on the uncastled king: queen to e6 (e2·3)
Winning blow: queen to g5 (g4·2)
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