Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: king to d1 (c1·4)
Winning blow: king to d1 (c1·7)
Winning blow: knight to f4 (e6·2)
Winning blow: rook to f4 (d4)
Attack on the uncastled king: pawn to h8 (h7)
Winning blow: king to c2 (c1·7)
Winning blow: king to f2 (f1·10)
Winning blow: king to g4 (f3·2)
Winning blow: knight to f1 (g3)
Winning blow: king to f1 (g1·18)
Winning blow: king to d1 (e1·8)
Attack on the uncastled king: king to g1 (h1)
Attack on the uncastled king: king to b1 (c1·9)
Winning blow: king to d1 (e2·4)
Winning blow: king to a3 (b4)
Winning blow: king to d2 (c1·13)
Attack on the uncastled king: king to d2 (e1·11)
Winning blow: king to f1 (g1·19)
Winning blow: king to c2 (d1·9)
Winning blow: king to e1 (d1·10)
Winning blow: king to d3 (e2·3)
Attack on the uncastled king: pawn to a8
Winning blow: bishop to d3 (e2·3)
Winning blow: king to h3 (g2)
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