4inROW is a free online strategy game that challenges you to connect four colored discs in a row before a smart AI opponent does. Played on a classic 6x7 grid, the rules are simple: take turns dropping your disc into any column and be the first to line up four pieces horizontally, vertically, or diagonally. Sounds easy — it rarely is.

The AI in 4inROW doesn't just react, it plans ahead, blocking your setups while building its own winning lines. You need to think two or three moves out, watch for diagonal traps, and avoid giving the AI a forced win. The WebGL-powered game runs smoothly in your browser with no lag, making every match feel crisp and responsive. Whether you're playing a quick five-minute session or grinding out rematch after rematch, the back-and-forth tension keeps things interesting.

This game is perfect for fans of classic board games, logic puzzles, and brain teasers who want a quick mental workout without any setup. If you enjoy games like Tic Tac Toe, chess puzzles, or other two-player strategy games, 4inROW hits that same satisfying spot. It's also a great pick for players searching for free connect four games online, AI strategy puzzle games, or no-download browser logic games. Play directly in your browser and test your tactical thinking right now.