I saw my friend working on making a computer game version of an old game (not traditionally a computer game) and his notepad has these strange series of numbers. What game is he working on?
(1,2,3)
(4,5,6)
(7,8,9)
(10,11,12)
(13,14,15)
(16,17,18)
(19,20,21)
(22,23,24)
(1,10,22)
(4,11,19)
(7,12,16)
(9,13,18)
(2,5,8)
(17,20,23)
(6,14,21)
(3,15,24)
And he says that is the complete set of sets (whatever that means!)
Any ideas?