The game that you played as a child is back and more challenging than ever!
The simple puzzle known as tic-tac-toe once was played in ancient Egypt and the Roman Empire. Now it has evolved into a challenging Conceptis logic puzzle in a 10-by-10 grid, available in print and digitally.
No more than two X’s or two O’s can be next to each other on any line, across or down. There must be five X’s and five O’s in each row and column. No two rows or columns can be the same. Some clues are available to start the puzzle-solving process, but keep a pencil and a good eraser handy, because it’s more difficult than it appears!