I did it three times with 3 sets if different numbers and it got it all three times For Ecample: 1-pick 4 digits = 2947 2-jumble the 4 digits around = 7249 3-subtract the smaller set from the larger set = 7249 - 2947 = 4302 4-draw a circle around one of the remaining digits (not a zero) = I picked 4 5-rejumble and type in remaining digits leaving out the circled digit, it should pick the circled digit, I typrf in 203 = it picked the 4 I don't know it's working for me?

it was close but this one is freaky. it will guees it all the time. http://www.britishcouncil.org/learnenglish-central-games-magic-gopher.htm try it and let me know