Pins against the king, part 2 is lesson 5 of 8 in Pins and skewers, a tactics course suited to players rated around 1400 (club players). A piece pinned to its king cannot move at all. Pile up on it, or attack it with a pawn, and it falls. More positions, a little harder. It has 7 interactive exercises: 7 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: use a pin to win material. (2 positions)
Black to move: use a pin to win material. (5 positions)
Worked examples
White to move: use a pin to win material. 1.Bb5 a6 2.Bxc6+. The queen on c6 was pinned to the king by the bishop on b5 and could not get away. You come out 6 points ahead in material.
Black to move: use a pin to win material. 1...Qa1 2.Bf8 Qxb1+. The queen on b1 was pinned to the king by the queen on a1 and could not get away. You win the queen on b1 and come out 9 points ahead.