Find the two-move forcing sequence.

Three-move forced mates from real games.

Deeper forcing sequences — 4 moves to mate.

Deep calculation — five-move forced mates.

Rook or queen mates a king trapped behind its own pawns.

A lone knight mates a king suffocated by its own pieces.

Rook + knight, king cornered on the edge.

Knight seals the escape squares, rook slams the h-file.

Two bishops cross-fire an exposed queenside king.

Queen mates from adjacent, king boxed by two of its own pieces.

Queen mates on h7, supported by a friendly pawn on g6.

Pawn on f6 (or g6) partners with the queen on g7 for mate.

Long-diagonal bishop covers g8, queen mates on h-file.

Sacrifice the queen, mate with two knights and a bishop.

Long-diagonal bishop + rook on the g-file trap the king in the corner.

Two bishops and a knight tear apart the castled king.

King has 'shoulders' — two rooks either side block its escape.

Rook + knight + pawn team up on the edge.

Two rooks on the 7th rank crash into the king.

Fianchettoed bishop + rook lift mates the castled king.

Bishop mates on b7, supported by a rook on the b-file.

Rook (or queen) mates on h8, own pawn on g7 covers the flight.

Knight mates a king suffocated by its own defenders.

Queen + rook lock the king in a 3×3 'kill box'.

Two bishops on adjacent diagonals crush a king trapped by its own pieces.

Rook mates on the edge, knight covers the escape square.