Tic-Tac-Toe is a classic two-player strategy game that is played on a 3x3 grid. The objective of the game is to be the first player to form a line of three of their own symbols, either horizontally, vertically, or diagonally.

Here's a brief overview of how the game is played:

Game Board: The game board consists of a 3x3 grid, initially empty. Players take turns placing their symbols on the board.
Symbols: Typically, one player uses "X" as their symbol, and the other uses "O." Players take turns placing their symbols in empty spaces on the grid.
Turns: Players alternate turns, placing their symbol in an empty cell on the grid during each turn.
Winning: The game is won when a player successfully places three of their symbols in a row, either horizontally, vertically, or diagonally. If the entire board is filled without a winner, the game is a draw.
Now, depending on whether the game is played against another player or an AI opponent, the dynamics change:

Player vs. Player (PvP): In this mode, two human players take turns making moves. Each player must strategize to create a winning combination or block their opponent from doing so.
Player vs. AI (PvAI): In this mode, a single human player competes against a computer-controlled opponent. The AI is programmed to make strategic moves and can provide different levels of difficulty, ranging from easy to hard. The player needs to outsmart the AI to win.
When playing against an AI, it's common to implement various algorithms to make the computer opponent challenging. These algorithms can range from simple rule-based strategies for easy difficulty to more sophisticated minimax or alpha-beta pruning algorithms for higher difficulty levels.

Whether playing against another person or against an AI, Tic-Tac-Toe remains a timeless and accessible game that is often used as a learning tool for understanding basic game mechanics and strategy.