Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Attack on the uncastled king: queen to a7 (g1·5)
Mate in 2: queen to d8 (d2·3)
Attack on the uncastled king: rook to f7 (f4)
Mate in 2: queen to e8 (e1·2)
Attack on the uncastled king: queen to c7 (a5·4)
Mate in 2: rook to g8 (g2)
Mate in 2: queen to g8 (g2·2)
Mate in 2: queen to e8 (e3·3)
Attack on the uncastled king: queen to e8 (e6)
Mate in 2: rook to e7 (e1·4)
Mate in 2: rook to g7 (g1)
Mate in 2: queen to h3 (h6)
Mate in 2: knight to c6 (b4)
Mate in 2: queen to e8 (e3·5)
Mate in 2: queen to d7 (d2)
Mate in 2: knight to c5
Mate in 2: queen to g7 (b2·2)
Mate in 2: queen to d8 (d2·7)
Mate in 2: queen to c8 (c3·2)
Mate in 2: queen to b6 (a5·2)
Mate in 2: bishop to d6 (e7)
Mate in 2: knight to c6 (b4·2)
Mate in 2: queen to a7 (a5·2)
Mate in 2: queen to d7 (d1·5)
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