Mate in three or more is lesson 8 of 9 in Real-game tactics 6: Combinations and quiet moves, a tactics course suited to players rated around 1600 (club players). Longer mating combinations: keep checking, keep the king boxed in, and count every reply. It has 6 interactive exercises: 6 calculated lines from real positions. You play every move on a board and get feedback straight away. The lesson is free.
What you practise
White to move: mate in 4. (2 positions)
White to move: mate in 3.
Black to move: mate in 3. (3 positions)
Worked examples
White to move: mate in 4. 1.Bf6+ Kf8 2.Qh8+ Bg8 3.Qg7+ Ke8 4.Qe7#. The invasion on the 7th rank decided it. Mate in 4.
White to move: mate in 3. 1.Qxe8+ Rxe8 2.Rf8+ Rxf8 3.Rxf8#. The king was trapped on the back rank behind its own pawns. Mate in 3.
More in Real-game tactics 6: Combinations and quiet moves