Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: king to e2 (d1·9)
Winning blow: king to f3 (g2)
Winning blow: bishop to d4 (f2·5)
Winning blow: knight to e3 (f1·2)
Winning blow: rook to d1 (d3·2)
Attack on the uncastled king: bishop to c2 (e4)
Attack on the uncastled king: rook to c3 (b3)
Winning blow: king to a1 (b1·9)
Winning blow: bishop to g3 (e1)
Winning blow: king to e1 (f1·11)
Winning blow: king to h1 (g1·12)
Winning blow: bishop to c1 (b2)
Attack on the uncastled king: king to f2 (e2·3)
Winning blow: king to a2 (b1·11)
Winning blow: king to e2 (e1·8)
Attack on the uncastled king: king to c3 (d2·4)
Winning blow: king to d1 (c1·6)
Winning blow: bishop to b2 (a1·2)
Winning blow: king to d2 (e3)
Attack on the uncastled king: king to g3 (g2)
Winning blow: bishop to d2 (c3)
Winning blow: king to a2 (b1·14)
Winning blow: king to d1 (c2·3)
Winning blow: king to f2 (e2·4)
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