Gomoku Strategy: 10 Principles to Play Better
Gomoku strategy comes down to one question asked on every move: which empty point matters most to both players right now? The ten principles below are different ways of answering it. None of them is a rule — each works for a reason, and each has situations where it is the wrong idea. Knowing both is what turns a principle into judgement.
If you are still learning how a game works, start with how to play Gomoku and come back. This guide assumes you know what a four and an open three are; the Gomoku tactics guide defines every shape with diagrams.
1. Handle forced moves first
Before thinking about plans, check for moves you have no choice about. In order:
- Can you make five? Do it.
- Does your opponent have a four? Block it. Nothing else matters.
- Can you make an open four, or a four and an open three at once? An open four wins outright. A four-three wins unless your opponent's forced block also gives them a four, so check that first.
- Does your opponent have an open three? Respond to it, either by blocking or by making a four of your own that forces them to answer first.
Why it works: these situations decide the game within one or two moves, so they outrank any long-term idea.
Where it fails: step 4 is not absolute. Sometimes the best reply to an open three is a sequence of your own fours that ends in a win — your opponent never gets time to use their three. That only works if every move in your sequence is a four.
2. Judge every move twice
Every stone you place does two jobs: it extends your lines and it occupies a point your opponent might want. Before you play, ask what the move does for you and what it does against them. The best moves score on both.
Why it works: a move that attacks and defends at once gains a tempo, because your opponent has to respond to the attack.
Where it fails: do not let the attacking half tempt you into a weaker block. If only one end of a threat actually stops it, play there, even if it builds nothing.
3. Play where the lines are
A point far from the edges belongs to 20 possible lines of five; a corner point belongs to only 3. That is the reason behind the advice to play near the centre: central stones take part in more lines, for you and against your opponent. The board size guide works through the numbers.
Why it works: more possible lines means more ways to create threats later, and more of your opponent's lines blocked.
Where it fails: "the centre" really means "where the stones are". Once a fight has started on one side of the board, a move back in the geometric centre is often a wasted move. Go where the lines are crowded.
4. Keep your stones connected
Stones next to each other, or one point apart, share lines. Two connected stones can become a three in one move; two stones five points apart cannot help each other at all.
Why it works: connected groups produce threats quickly, and every new stone adds to several lines at once.
Where it fails: connection without direction. Five stones packed into a tight blob often have every useful line blocked by a few well-placed opponent stones. Connect stones so that they point in different directions.
5. Build in more than one direction
A single line is easy to stop: your opponent blocks one end and waits. A shape that grows in two or three directions forces them to guess which one matters.
Why it works: every stone can serve four lines. Using two or more of them makes each of your moves harder to answer with one block.
Where it fails: spreading too thin. If none of your lines ever reaches three, you are not threatening anything. Build several directions, but push them forward.
6. Value open shapes over closed ones
A line with empty space at both ends — an open line — can grow either way. A line blocked at one end has only one way forward, which your opponent can see coming.
- An open three threatens to become an open four, which cannot be stopped.
- A closed three threatens only a closed four, which can be blocked with a single move.
- An open four wins: your opponent can block one end, and you complete five at the other.
Why it works: open shapes force responses; closed shapes usually do not.
Where it fails: closed fours are still useful. They force an immediate reply, so they make excellent links in a forcing sequence even though they are not a threat on their own.
7. Win with multiple threats
Most decisive moves in Gomoku create two threats at once: four plus open three, two open threes, or two fours. Your opponent places one stone per turn, so they can only stop one.
Treat everything else — centre play, connection, open shapes — as preparation for this moment. When you choose between two quiet moves, prefer the one that puts more of your lines through the same empty points, because a point shared by two of your lines is where a double threat will appear.
Why it works: the game's turn structure. One move cannot answer two threats.
Where it fails: a double threat only wins if your opponent cannot answer with a four of their own. Before you commit, check whether they have a counter-attack.
8. Keep the initiative
The player making threats chooses where the next stone goes. The player answering threats does not. This is tempo, and it is the main currency of the game.
Practical consequences:
- When you must block, block in a way that also threatens (principle 2), so the initiative comes back to you.
- Do not spend a forcing move too early. A four that your opponent simply blocks, with nothing following, is a threat you no longer have.
- If your opponent is attacking and you are not, look for a four of your own. Even a single forcing move can break their rhythm.
Where it fails: forcing moves are not free. Every four you play gives your opponent a stone exactly where they want to defend. Use them when they lead somewhere.
9. Look one move ahead — for both players
Before playing, ask: after this move, what is my opponent's best reply? Many losses come from a move that is fine in itself but leaves the opponent a reply that blocks you and threatens at the same time.
Why it works: it catches the most common blunders without requiring deep calculation.
Where it fails: one move is not always enough. In sharp positions, follow forcing sequences to the end — they are short to read because each move has only one or two answers.
10. Don't waste moves
Some moves look active but do nothing:
- blocking a line that can never become five anyway,
- adding a stone to a line that is already blocked at both ends,
- playing on the far side of the board, away from every fight.
Why it works: each wasted move is a free move for your opponent.
Where it fails: under 5Row's two-end rule, "dead" lines are not always where you expect. A line boxed in by two opposing stones can be weaker than it looks (the board edge never seals it), and an overline of six still wins. Count the space carefully.
Beginner checklist
Use this before every move until it becomes automatic:
- Do I have a five? Does my opponent have a four?
- Does my opponent have an open three — in any of the four directions, diagonals included?
- Which of my moves makes a threat?
- Which empty point is shared by two of my lines?
- After my move, what is my opponent's best reply?
Intermediate checklist
Once the basics are automatic:
- Which points are shared by two of my opponent's lines? Can I take one with a move that also helps me?
- Do I have a sequence of fours that ends in a win? Read it to the end.
- If I make this threat, does my opponent's answer also attack me?
- Is this the right moment to spend a forcing move, or should I build quietly first?
- Which of my blocks would also extend one of my lines?
Where to go from here
These principles meet in two places: the opening, where you set up the shapes, and the tactics, where you cash them in. When you are ready to put it together, how to win at Gomoku turns the principles into a move-by-move decision process.
On 5Row: the two-end rule (on by default) makes open lines even more valuable — an exact five blocked at both ends does not win, so lines boxed in by opponent stones are weaker. Check the Gomoku rules for the exact cases, then test the principles in a game.
FAQ
What is the single most important Gomoku strategy?
Making two threats with one move. Almost every other principle is a way of preparing for it or stopping your opponent from doing it.
Should I attack or defend?
Both, with the same stone whenever possible. When you have to choose, defend against anything that wins next move, and attack otherwise.
Is it bad to play the first move off-centre?
It is not a mistake, but it gives away part of the first-move advantage, because your stone takes part in fewer lines.
How do I stop an opponent who always attacks?
Block at the end that also builds your own line, and look for fours you can play to take the initiative back. Pure blocking only delays the double threat.