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The sliding phase is where Terni Lapilli gets interesting. Here is how to control the centre, avoid getting boxed into a corner, and why there is no fixed answer.

Terni Lapilli is the ancient Roman game that tic tac toe evolved from. Here are the rules, the key differences, and how to actually play it.

There are no dice, no cards, no random elements anywhere in tic tac toe. So why does it sometimes feel like luck? Here is the real answer.

No phone, no wifi, no board needed. Here are 10 pen and paper games that are genuinely fun, from five-second classics to games that can last an hour.

The Hard mode on TicToe.org cannot be beaten, not even once. Here is how the minimax algorithm works and why it guarantees a perfect game every time.