Chess960 puzzles: Back-rank mate
The king is locked behind its own pawns — a heavy piece strikes the last rank.
479 puzzles
Mate in 3: queen to c3 (e1)
Attack on the uncastled king: queen to f8 (f1·8)
Mate in 3: queen to a5 (e1·4)
Attack on the uncastled king: bishop to d7 (b5·7)
Mate in 3: queen to h8 (h6·2)
Mate in 3: bishop to a5 (c3·2)
Mate in 3: pin on f2
Mate in 2: pin on g7
Mate in 2: pin on f7 (c7)
Back-rank mate in 2 on f7
Back-rank mate in 2 on c1 (c8·3)
Mate in 2: deflection on h3 (g5)
Attack on the uncastled king: queen to e7 (e4·6)
Attack on the uncastled king: queen to e7 (e2·9)
Attack on the uncastled king: queen to e7 (c5·3)
Attack on the uncastled king: queen to b7 (b2·5)
Mate in 3: queen to f7 (c4·3)
Mate in 3: rook to c8 (c6)
Attack on the uncastled king: queen to c7 (a5·6)
Mate in 3: queen to g8 (b3·3)
Mate in 3: queen to f7 (f2·3)
Mate in 3: queen to e8 (e7·6)
Mate in 3: queen to e8 (e5·3)
Attack on the uncastled king: queen to d7 (d2·6)