Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: king to e1 (d1·3)
Winning blow: bishop to a3 (b4)
Winning blow: king to f2 (e1·12)
Winning blow: king to d2 (d1·7)
Attack on the uncastled king: pawn to e4 (e2·3)
Attack on the uncastled king: rook to h2 (h1·11)
Attack on the uncastled king: pawn to g4 (g2)
Winning blow: king to h2 (g1·22)
Winning blow: bishop to d3 (e2·4)
Winning blow: rook to c3 (a3·3)
Winning blow: pawn to a8 (a7·4)
Winning blow: king to a1 (b1·15)
Winning blow: rook to c8 (c6)
Winning blow: bishop to g5 (d2)
Attack on the uncastled king: queen to a6 (d3)
Attack on the uncastled king: king to a2 (b1·8)
Winning blow: king to b2 (c1·18)
Winning blow: king to e2 (d2·4)
Attack on the uncastled king: queen to a7 (a5·6)
Attack on the uncastled king: knight to g6 (e5·7)
Attack on the uncastled king: rook to e1 (d1)
Winning blow: bishop to b5 (a6·3)
Attack on the uncastled king: king to c1 (b2·2)
Winning blow: pawn to g3 (g2·5)
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