Chess960 puzzles: Only move
Everything else loses — find the only move that holds.
6689 puzzles
Winning blow: pawn to b8 (b7·2)
Winning blow: pawn to b8 (b7·3)
Winning blow: pawn to h8 (h7)
Attack on the uncastled king: king to h2 (g1·6)
Winning blow: king to b1 (b2·3)
Attack on the uncastled king: knight to c2 (e1·5)
Attack on the uncastled king: king to e1 (f1·5)
Winning blow: king to e1 (f1·13)
Winning blow: king to c3 (b4)
Attack on the uncastled king: king to f1 (g1·8)
Winning blow: bishop to e4 (b1·2)
Attack on the uncastled king: knight to c1 (a2)
Attack on the uncastled king: rook to c2 (c1·4)
Winning blow: king to g1 (f1·18)
Winning blow: rook to b2 (b3)
Winning blow: king to g1 (f2·6)
Winning blow: king to f1 (e1·11)
Winning blow: king to h1 (g1·18)
Winning blow: king to b1 (c1·17)
Winning blow: pawn to e4 (e3·4)
Winning blow: king to e1 (d2·4)
Fork: knight to f2 (e4)
Discovered attack: bishop to h2 (d6·2)
Fork: queen to f5
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279