Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: pawn to b5 (c4·2)
Attack on the uncastled king: queen to f7 (b3·4)
Winning blow: bishop to b4 (d2)
Winning blow: knight to e7 (c6)
Attack on the uncastled king: rook to h2 (h1·8)
Winning blow: queen to b2 (a3)
Winning blow: knight to c5 (e4·2)
Attack on the uncastled king: bishop to d3 (b1·4)
Winning blow: knight to e2 (c3)
Attack on the uncastled king: bishop to f4 (g3·3)
Winning blow: knight to d7 (f6·4)
Winning blow: knight to d7 (e5·4)
Winning blow: queen to d3 (f5·2)
Attack on the uncastled king: knight to d6 (f5·16)
Winning blow: rook to f7 (f4)
Winning blow: king to g2 (f1)
Winning blow: pawn to e4 (d3·6)
Attack on the uncastled king: bishop to e8 (b5·4)
Winning blow: queen to a5 (b4)
Winning blow: queen to e7 (h7)
Winning blow: knight to d7 (e5·5)
Attack on the uncastled king: queen to d4 (d3·2)
Winning blow: knight to f6 (h5·4)
Winning blow: queen to d1 (d2)
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279