Gomoku (Five in a Row) Strategy
Gomoku, also known as Five in a Row, is deceptively deep. The rules take ten seconds to learn — line up five stones in a row — but strong play is a game of threats, counter-threats, and forcing your opponent into a corner they can't escape. This guide takes you from the basics to the tactics that win games against a sharp defender.
The Objective
Players take turns placing stones on the intersections of a grid. The first to form an unbroken line of five of their own stones — horizontally, vertically, or diagonally — wins. Simple, but with so many directions to build in, the board rewards planning several moves ahead.
Core Vocabulary
Understanding threats is everything in Gomoku:
- Open three — three in a row with empty points on both ends. Left alone, it becomes an open four, which is unstoppable. Your opponent must respond.
- Four — four in a row that threatens five next move. This forces an immediate block.
- Open four — four with open ends on both sides. It's a guaranteed win, because a single block can't cover both ends.
- Double threat — one move that creates two separate threats at once. Your opponent can only block one, so the other wins.
Strategy Tips
- Control the center. The middle of the board gives your stones the most directions to grow. Opening near the center keeps your options open and limits your opponent's.
- Block open threes immediately. If your opponent makes an open three and you ignore it, they build an open four and win. Answer it the moment it appears.
- Hunt for the double threat. The winning plan is almost always to set up a move that makes two threats simultaneously — a "double three" or a "four and a three." Your opponent can't defend both.
- Use forcing moves to build. Every time you make a four, your opponent is forced to block a specific point. String these forced replies together and you can maneuver into a winning double threat.
- Don't just attack — watch their shape too. Track your opponent's stones as carefully as your own. Many losses come from chasing your own line while missing their open three.
- Think about where a stone helps two lines. A single stone that contributes to two potential rows at once is worth far more than one that only extends a single line.
A Practical Game Plan
Open in the center, then develop stones that each threaten in more than one direction. Force your opponent to react with fours and open threes while you quietly arrange the stones for a double threat they can't answer. Defense and offense are the same skill here: every stone should both build your line and blunt theirs.
If you enjoy strategic line-building, try the quicker Four in a Row, the classic Tic-Tac-Toe, or the connection game Hex.
Test your tactics against the AI — Play Gomoku free, and browse more guides for other board games.