Mono duo

I found an old pic of Chaz and was trying to emulate HP5 here which is trickier than you'd think - trickier than I'd think anyway.
Those online games can be quite addictive. I was looking over their shoulders moments later giving Tilly backseat advice. I should have been advising them to head towards the bath but sometimes it pays to be patient... Patient but firm.
Who am I kidding?