Pins and unsound attacks (via intermediate checks etc)
Pins are not useful unless used in some way
slipping out of attacking pins (and forks)
ask students to cover up diagram 6 before looking at number 5
The Knight on e4  is pinned to the Queen
Q how does black use the pin ?
Q does white have any counter-threat that black
should be careful about  ?
3 and from the same game 4
Q what two (2) big advantages do you see for black ? Q what should black do now ?
Q who do you think has the better game here ?
Q what do you think black's plan might be ?
Q what are white's plans or priorities ?
Q what is the best move for black ?