Bored of the classic Tic Tac Toe? Wanna try something new and challenging?
Wait no more... try Trio Prime 31.
A trio is "a set or group of three people or things." Ever realized that OOO and XXX was a trio? How about OOX, OXO, OXX, XOO, XOX and XXO? Yes, they are all trios also!
Simply choose 4 "minor" trios for 1 point value each and 1 "major" trio for 4 points value.
Then, play Tic Tac Toe.
Once a player scores a classic Tic Tac Toe, we compute the score based on how many trios are found on the board.
May the highest score wins!