Gomoku - Tic Tac Toe five in the row variation. Most similar Tic Tac Toe games on the market are 'three in a row'. Others have rules limiting your moves, a small grid, or are just too easy. This Tic Tac Toe/Gomoku game has none of these issues. It is said that the opening player can always win. If you know the path - try it, if you don't - why not try and find it?