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Connect Four Strategy | How to Win Every Time

By PlayBrain Teamยทยท6 min read

Connect Four looks like a simple kids' game. Drop colored discs into a 7-column, 6-row grid, get four in a row. But underneath that simplicity is a solved game with real strategic depth. The first player wins with perfect play, and these strategies will get you as close to perfect as possible.

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Quick Picks: Key Strategies

StrategyWhen to UseImpact
Control the centerEvery game, from move 1High
Build double threatsMid-game, when you have 2+ pieces placedGame-winning
Odd-even ruleWhen counting open spacesAdvanced
Block before buildingWhen opponent has 2 in a rowEssential
Avoid the edges earlyOpening movesMedium

Strategy 1: Control the Center Column

The single most important concept in Connect Four. The center column (column 4) touches the most possible four-in-a-row combinations. A disc in the center can be part of horizontal, vertical, and both diagonal lines.

First move: always play center. If your opponent plays center first, play directly on top of them or in an adjacent column. Never start on the edges.

The three center columns (3, 4, 5) are where most games are decided. Build your position there before spreading out.

Strategy 2: The Double Threat (Fork)

This is how you actually win games. A double threat means you have two ways to complete four in a row, and your opponent can only block one.

How to build one:

  1. Place two discs in positions that share a common empty square
  2. Build toward two separate lines that both need the same column to block
  3. When your opponent blocks one, you complete the other

The classic setup: build an L-shape or T-shape with your discs. This naturally creates positions where completing one line opens another.

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Strategy 3: The Odd-Even Rule

This is the most powerful advanced strategy in Connect Four. It works because discs stack from the bottom up.

The rule: Count from the bottom. Row 1 (bottom) is odd, row 2 is even, row 3 is odd, and so on.

  • Player 1 (goes first) makes moves 1, 3, 5, 7... They place discs on odd-numbered total moves
  • Player 2 makes moves 2, 4, 6, 8... They place discs on even-numbered total moves

What this means: If you are Player 1, try to set up winning threats on odd rows (rows 1, 3, 5). Your opponent will fill the squares below, and when the critical square lands on an odd row, it will be your turn to fill it.

If you are Player 2, set up threats on even rows (rows 2, 4, 6) for the same reason.

Strategy 4: Block Aggressively

Never let your opponent get three in a row unchallenged. Two in a row with open spaces on both sides is already dangerous.

Priority order for blocking:

  1. Block any three-in-a-row immediately (they win next turn otherwise)
  2. Block two-in-a-row with both ends open (potential double threat)
  3. Block two-in-a-row near the center (more dangerous than edges)

But here is the key: blocking alone loses. If you spend every turn reacting, your opponent controls the tempo. Block when necessary, but always have your own offensive plan.

Strategy 5: Avoid the Trap of Going Wide Too Early

New players often spread their discs across the board trying to "cover more ground." This is a mistake. Wide placements do not connect to each other and give your opponent the center.

Instead:

  • Keep your first 4-5 discs within columns 2-6
  • Build vertically and diagonally from the center outward
  • Only use edge columns (1 and 7) when they complete a line or block a threat

Common Mistakes

Stacking too high in one column. Four vertical in a row wins, but your opponent sees it coming after three. Vertical wins only work when your opponent is distracted by a horizontal threat elsewhere.

Ignoring diagonals. Most beginner games are decided by diagonal connections because players focus on horizontal and vertical lines. Always scan diagonals before you drop.

Reacting instead of planning. The best Connect Four players think 3-4 moves ahead. Before you drop, ask: "What will my opponent do after this? What will I do after that?"

Practice These Positions

The best way to improve is to play and actively apply these strategies:

  1. Opening drill: Always play center first. See how often you win just from center control.
  2. Fork drill: Every game, try to build at least one double threat. Even if you lose, you are training the pattern recognition.
  3. Count drill: Practice counting odd and even rows. Before each move, check if you are setting up a threat on the right-parity row.

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*Related: Checkers Strategy Guide | How to Beat 2048*

FAQ

Is Connect Four a solved game?

Yes. In 1988, Victor Allis proved that with perfect play, the first player always wins by starting in the center column. But perfect play requires calculating thousands of positions, so in practice, strategy matters enormously.

What is the best first move in Connect Four?

Always play the center column (column 4). It gives you the most possible winning lines and forces your opponent to react to your position.

How many possible games of Connect Four are there?

Over 4.5 trillion possible game positions exist. The game tree has been fully computed, but no human can memorize it all. That is why strategic principles matter more than memorization.

Can I win going second in Connect Four?

With perfect play from both sides, Player 2 loses. But in practice, most games include mistakes. Using the even-row strategy gives Player 2 strong winning chances against imperfect opponents.

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Frequently Asked Questions about Connect Four Strategy | How to Win Every Time

Is Connect Four a solved game?
Yes. Victor Allis proved in 1988 that with perfect play, the first player always wins by starting in the center column. In practice, strategy beats memorization since over 4.5 trillion positions exist.
What is the best first move in Connect Four?
Always play the center column (column 4). It gives you the most possible winning lines and forces your opponent to react to your position rather than building their own.
How do you build a double threat in Connect Four?
Place discs in an L-shape or T-shape pattern that creates two separate potential four-in-a-row lines. Your opponent can only block one, so you complete the other for the win.
What is the odd-even rule in Connect Four?
Rows alternate odd and even from the bottom. Player 1 should set up winning threats on odd rows, Player 2 on even rows. Since discs stack up, the right-parity row means the critical square lands on your turn.
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PlayBrain Team

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