Tic-Tac-Toe on Solana with Anchor

This project implements a Tic-Tac-Toe game on the Solana blockchain using the Anchor framework. The game demonstrates fundamental concepts of program state, user interaction, and error handling.

---

Features

• Game Setup: Initializes a new game with two players.
• Play Turns: Players take turns placing their marks on a 3x3 board.
• Win/Tie Detection: Automatically detects a win or a tie.
• Error Handling: Ensures only valid moves are allowed.

---

Code Overview

Game State

The game's state is managed through a custom Solana account. Key attributes include:

• Players: Public keys of the two players.
• Turn: Tracks the current turn.
• Board: A 3x3 grid representing the board.
• State: Tracks if the game is active, tied, or won.

Game Logic

The game logic is implemented in the Game struct, which provides methods for:

• Starting the game: Setting initial players and turn.
• Making moves: Placing marks on the board and validating them.
• Checking game status: Detecting wins, ties, and updating the state.

Instructions

1. setup_game

   • Initializes the game account and sets the players.
   • Allocates space for the account and sets the turn.

2. play

   • Updates the board with a player's move.
   • Checks for a win or tie.