On Sat Sep 21 08:55, MBD wrote: >Hmm that seems false too! The published figures say the 2nd and 7th parts. No, it is true, but I read it as omit H in the 3rd and 8th repeats, ie the 4th and 8th of the A blocks (in which case the extra Q's need to be in the 1st and 6th B blocks). Rob