Not being a fan of mathamatics (it makes my brain hurt) i wasnt too impressed with this game - but persevered as a friend had solved it and i didnt want to appear dumb!
I took a while before it hit me what i was expected to actually DO! It was like a Revelation!
And i had a child-like sense of accomplishment that i havent had since i was .... Well .... A child!
Thanks for a great game and an even better feeling!