Connect 4 Online Free: Play Against Smart AI or 2 Players | LOGIDIAS
Play classic Four in a Row directly in your browser against tactical minimax AI or locally with a friend. 100% free with no install.
Real-Time Interaction
Click columns to drop game tokens and challenge progressive depth-searching AI bots.
Scientific Rigor
Designed for secondary, high school, and university students to grasp complex STEM phenomena intuitively.
Zero Install (WebGL)
Runs instantly inside your browser on PC, tablet, or smartphone without plugins or account setup.
💡 Frequently Asked Questions
Is four-in-a-row a mathematically solved game?
Yes, in 1988 James Allen proved the first player can always force a win with perfect play.
How does the AI choose moves?
Evaluates game decision trees projecting multiple turns ahead using the Minimax algorithm.
What is Alpha-Beta pruning?
An optimization that prunes subtrees that cannot affect final decision values, saving computations.
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