Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: pawn to e4 (f3·6)
Winning blow: queen to d6 (b4)
Winning blow: knight to d6 (f5·2)
Winning blow: bishop to f7 (e6)
Attack on the uncastled king: king to f2 (g1·7)
Winning blow: rook to e7 (c7)
Winning blow: rook to h8 (g8)
Winning blow: queen to a5 (d5)
Attack on the uncastled king: pawn to h7 (h6)
Winning blow: bishop to e5 (a1·3)
Attack on the uncastled king: bishop to e4 (b1·20)
Winning blow: bishop to b6 (d4)
Attack on the uncastled king: rook to b1 (a1)
Winning blow: knight to e7 (f5·7)
Winning blow: knight to d5 (c3·5)
Winning blow: queen to c4 (a2)
Winning blow: rook to d4 (g4)
Winning blow: knight to c7 (a6)
Winning blow: knight to c7 (d5·5)
Winning blow: pawn to b5 (a4·4)
Winning blow: knight to b7 (a5·2)
Winning blow: pawn to c5 (d4·7)
Attack on the uncastled king: knight to e4 (c5·2)
Attack on the uncastled king: knight to d6 (e4·10)
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