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 b8 (a7)
Attack on the uncastled king: queen to b8 (b7·3)
Attack on the uncastled king: queen to h8 (d4·7)
Attack on the uncastled king: pawn to a8 (a7)
Attack on the uncastled king: queen to h8 (h4·4)
Mate in 3: queen to h8 (f6)
Attack on the uncastled king: rook to h8 (h6)
Attack on the uncastled king: queen to f8 (f2·6)
Attack on the uncastled king: queen to f8 (g8·8)
Mate in 3: queen to e7 (b7)
Mate in 3: queen to g5 (a5)
Mate in 3: knight to f7 (d8·2)
Mate in 3: rook to g8 (g1·3)
Mate in 3: queen to g6 (h7)
Attack on the uncastled king: queen to e8 (f8·2)
Mate in 3: queen to e6 (e1)
Attack on the uncastled king: queen to d8 (d4·6)
Attack on the uncastled king: queen to a4 (c4)
Mate in 3: bishop to e6 (h3)
Mate in 3: queen to b8 (a8·2)
Attack on the uncastled king: queen to e6 (d5·2)
Mate in 3: queen to h6 (f4)
Mate in 3: queen to d6 (g3·3)
Mate in 3: queen to g8 (f7)