Four in a Row
How to Play
Four in a Row is a free online version of the classic connection strategy game: take turns dropping colored discs into the grid, where each disc falls to the lowest empty slot in its column, and be the first to line up four of your discs in a row — horizontally, vertically, or diagonally. It runs unblocked in your browser with no download and no sign-up, so it loads fast on school Chromebooks, library computers, and home PCs alike. In single player you face a computer bot opponent — each bot carries a skill label (such as Beginner), and your own ELO rating starts at 1200 and moves with your results — while 2-player mode is a local hot-seat match for two people on one screen. Undo, a full move list, resignation, and a leaderboard round it out. There's no online multiplayer — just instant classic four-in-a-row strategy in HTML5.
Browser Controls
- Drop a Disc: Click or tap a column and your disc falls to the lowest empty slot in that column. Every drop changes which squares both players can reach next turn, so place with a plan.
- Undo: Made a slip? Use Undo to take back your last move and try a different line — handy while you're learning to spot threats.
- Resign & Rematch: Use Resign to concede a lost position, then start a fresh match with Play Again from the results screen.
- Move List: The move list records the whole game as it's played, so you can review exactly how a win (or loss) was built.
- Settings: Toggle music, sound effects, and visual effects (particles and animations) any time from Settings.
Special Rules
- Gravity: Discs always fall to the lowest open slot in the column you choose — you can never place one mid-air, so the board builds from the bottom up.
- Winning: The first player to connect four of their own discs in an unbroken line — horizontal, vertical, or diagonal — wins instantly.
- Draws: If the grid fills before either player connects four, the game is a draw. Watch for it in tight, defensive matches.
- ELO Rating: In single player your rating starts at ELO 1200 and moves with your results against the computer bots — a simple running measure of how your play is improving.
Winning Strategies
- Control the Center: Every horizontal and diagonal four must pass through the middle of the board, so the center column is the most valuable real estate. Strong players fight for it from move one.
- Block at Three: The moment your opponent has three discs in a line with an open end, treat it as an emergency — block the fourth square immediately unless you have a faster win of your own.
- Build Double Threats: The classic winning pattern is two threats at once: set up two separate three-in-a-rows so your opponent can only block one. Whichever they cover, you complete the other.
- Mind the Square Below: Never drop a disc directly beneath a square that would complete your opponent's four — you'd be lifting them onto the winning square next turn.
Frequently Asked Questions
What is Four in a Row?
Four in a Row (also called 4 in a row or four in a line) is a classic two-player connection strategy game. Players take turns dropping colored discs into a vertical grid; each disc falls to the lowest empty slot in its column, and the first to line up four of their own discs horizontally, vertically, or diagonally wins. This free browser version offers single player against computer bots and local 2-player on one device, with no download and no sign-up.
Is Four in a Row unblocked?
Yes. It runs entirely in your browser with nothing to install, so it loads on most school and office computers where app downloads are blocked. It's the same free game people search for as four in a row unblocked or 4 in a row unblocked.
Is this the same game as Connect 4?
They share the same beloved rules — drop discs, connect four to win. Connect 4 is Hasbro's trademarked boxed version; Four in a Row is the traditional connection game, also known as four in a line or Captain's Mistress, and this is Playgami's own free, independent implementation. We are not affiliated with Hasbro.
Can I play Four in a Row against the computer?
Yes. Single player pits you against a computer bot — you'll see your opponent's skill label (such as Beginner) at the start, and your own ELO rating, which begins at 1200, moves with your results so you can track your progress.
Can two people play on the same device?
Yes. Local 2-player mode lets two people take turns on one screen — pass the mouse (or the device) between moves. No second device or account needed.
Can I play Four in a Row online against friends?
No. There is no online or networked multiplayer. Single player is against computer-controlled bots, and 2-player mode is local play on one shared device.
How do you win Four in a Row?
Connect four of your discs in a straight line — horizontal, vertical, or diagonal — before your opponent does. In practice, wins come from controlling the center column, blocking any opponent three-in-a-row on sight, and building double threats: two ways to complete four at once, so your opponent can't stop both.
What is the best first move in Four in a Row?
The center column. The classic game was fully solved by mathematicians in 1988: with perfect play, the first player can force a win by opening in the center, while starting in the outer columns can hand the advantage away. Human games are never perfect, but the lesson holds — fight for the middle of the board.
Can I undo a move?
Yes. Undo takes back your last move, which makes this a friendly way to practice spotting threats. You can also resign a lost position and jump straight into a rematch, and the move list keeps the full game for review.
Is it free, and do I need to download anything?
Yes, it's completely free — Four in a Row on Playgami has no sign-up and no payment. It's an HTML5 browser game that loads instantly: no downloads, no installs, no plugins.