Questions tagged [tic-tac-toe]

For questions about the pencil and paper game played on a 3x3 grid. Also known as Noughts and Crosses.

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3
votes
1answer
131 views

Winning strategy for NxN Tic-Tac-Toe

In a standard 3x3 Tic-Tac-Toe board, there is a strategy to win if the opponent makes a mistake. As far as I know, the strategy goes like: Capture the centers Capture the edges Capture a square which ...
5
votes
1answer
328 views

3D tic tac toe type of game

Looking for the name and rules of the game. Four identical pieces. Each a clear plastic double cube with a red round bead in the center of one cube (half of the piece) and a green round bead in the ...
0
votes
1answer
592 views

How do I play 4D Tic-Tac-Toe? [closed]

Quite simple, how do I play 4D TicTacToe? Anybody can imagine a dot. Anybody can imagine a line. Anybody can imagine a plane. Most people can imagine a solid. What about a four dimensional object? No ...
1
vote
1answer
541 views

Tic-Tac-Toe card games? [closed]

My family is developing a game based off of Tic-Tac-Toe. Only the objective is the same though. Are there any other games out there with similar goals and objectives based off of Tic-Tac-Toe?
3
votes
2answers
17k views

What's the best strategy to win a tic-tac-toe variant on a 5x5-board?

First: We assume that every player is playing at its best Rules 5x5 board Player 1 begins and puts every turn one cross “X”. Player 2 puts every turn two circles “O”. They don’t have to be next to ...
2
votes
2answers
26k views

Is there a good tic tac toe strategy for the second player?

The assumptions here are that your opponent will block whenever you could win on the next move, and also that given the opportunity to force a win (by creating two different directions with two in a ...
15
votes
1answer
3k views

Name of this interesting variant of Tic-tac-toe?

A group of grad students and I regularly meet up at conferences. Often, we spend our coffee breaks between talks playing various suggested generalisations of common pen-and-paper games to see if we ...
11
votes
1answer
13k views

Is Ultimate Tic Tac Toe solved?

Ultimate Tic Tac Toe is an interesting variant of Tic Tac Toe where in each of the 9 fields, a “regular” game of Tic Tac Toe is played; see the link for details. Has this game been solved already? ...
13
votes
3answers
3k views

First modern Naughts and Crosses/Tic Tac Toe?

When was Naughts and Crosses first released in its current form? I see there were Egyptian and the Roman versions, but these are very different games.
34
votes
1answer
5k views

What is the optimal strategy in Quantum Tic Tac Toe?

Quantum Tic Tac Toe is a variant of Tic-Tac-Toe with "entangled" states (there are even iPhone and Android apps). In essence, a classic naught or cross isn't placed until the 'quantum state' of the ...