For those confused by C-flat's comment, the UK lottery requires choosing 6 numbers which you hope will be the 6 numbers drawn by the tombola machine. Drawing all 6 scoops the jackpot (or a share of it) at odds between 13 and 14 million to 1. getting 3 right gives a prize of £10 (most weeks). so missing by three numbers means C-Flat managed to prophesy 0 out of 6.
An additional (Bonus) number is also drawn, which gives an additional prize if 5 numbers are correct, plus the bunus ball. This gives a great differentiation between the fist level of runners up. The prize ranking is: All 6 correct
5 correct + Bonus ball
5 correct
4 correct
3 correct.