It took six days for the scientists to complete the game. Eventually, X emerged victorious Caltech The world’s tiniest game of Tic-Tac-Toe is played using DNA and takes six days to complete, but the ...

Up to equivalence, there aren’t nine distinct opening moves. There are only three. If it isn’t immediately clear to you what “up to equivalence” means here, I urge you to try and figure it out ...