Blue Ox (Solution)
by Eli Bogart and David Farhi
Each face is a different shade of blue. Their hex codes (clued by the title, and visible by looking at the source for the page) are:
2001FF 3A00FF 2020FF 0041FF 3A45FF 0420FF 2A20FF 2401FF 3005FF
Each non-blue digit takes only 3 values over the whole grid: 0 and two others. So we turn it into four 3x3 grids:
232 030 223
0A0 0A4 A40
002 442 200
100 150 015
Each of these four looks like a tic-tac-toe grid. In each case there is a unique completion of the game assuming optimal play. For example, for the second digit it must be player 4s turn (he has played fewer times). 4 plays in the upper right, then A plays in the lower left, then 4 in the upper right, then A in the middle right. This gives us a string of 4 letters: the 4th letter of the upper right answer, then the Ath (10th) letter of the lower right, then the 4th letter of the upper left, then the Ath of the middle. Those are ECTR.
In this manner the games of tic-tac-toe give:
EL ECTR OOSM OSIS
spelling out the answer, ELECTROOSMOSIS.