The rules of tic tac toe are fairly straightforward. Below is a comprehensive list of the noughts and crosses game rules:

  1. The game requires two players, X and O.
  2. The game board is a set 3x3 grid in which players will place their symbol to claim that segment.
  3. X typically players first, then players alternate turns.
  4. The goal is to claim three segments of the grid in a row, either horizontally, vertically, or diagonally.
  5. No additional sides can be added to the grid.
  6. The game is over either when one player achieves three segments in a row, or when the grid is filled without anyone achieving three segments in a row.

While these rules are easy to understand, the game has the potential to produce 26,830 different variations, but that includes all identical rotations and mirror images of each board. When those repetitions are removed, there are a total of 765 different outcomes for the grid.

There are several distinct strategies that can be employed to ensure victory when playing tic tac toe, but there are also a few simple tricks that new players can use to help their chances. Remember, this game is known as a 'solved game', which means that there is a definite strategy that can be employed to win every single time. However, if both players employ that same unbeatable strategy, the game will result in a draw every time. Here are a few tricks for new players to use:

  1. When playing first, claim a corner spot instead of the center spot.
  2. When playing second, claim the center segment if the first player did not.
  3. When playing second, claim a corner spot if the first player claimed the center segment.
  4. Always make moves based on strategy.
  5. Most moves will either block, win, or set up for a win on the next turn.
  6. These are just a few of the most basic tricks for new players, but the game includes several more nuances for the final moves.

Those who might want something a bit more challenging could attempt 3D tic tac toe, which is basically like playing three individual games of tic tac toe but stacked on top of each other. This creates a play tic tac toe where winning rows of three are possible through all three dimensions. Interestingly enough, the same rules apply, and many of the same strategies must be employed if you hope to win at this more complicated game type.