How to Play Go on 9×9: A Beginner’s Guide

Go is the game of surrounding empty space. Stones do not move after they are placed. Groups live or die by liberties — empty adjacent intersections. Two consecutive passes end the game, and then the board is scored. GAMEAREA’s live title is 9×9, not the full 19×19 professional board. That is a feature: a 9×9 game is a distilled lesson in life, death, and territory, short enough to finish in a sitting.

White receives 6.5 komi on this board size. Komi is a scoring compensation because Black places the first stone. The half-point also prevents a draw on integer territory. Scoring here is stones on the board plus surrounded empty intersections plus captured stones, then White’s 6.5. That is what the engine adds up after two passes.

The 9×9 board and how a stone is placed

The board is a nine-by-nine grid of lines. Stones sit on intersections, including the edges and corners, not in the squares. There are 81 intersections. Black plays first. On your turn you either place one stone of your color on an empty intersection or you pass. You may not move a stone that is already on the board. Connected stones of the same color — connected along the lines, not diagonally — form a group and share liberties.

A liberty is an orthogonally adjacent empty intersection. A stone in the center has up to four liberties. An edge stone has three; a corner stone has two. When a group has zero liberties, it is captured and removed, and those stones count as captives for the opponent. Diagonal contact does not connect groups. Two Black stones on a knight’s jump are two groups until you fill the line between them.

Capture, atari, and a worked example

Atari means a group is down to one liberty. The next play on that liberty captures it, unless the group can grow a new liberty first. Worked example: Black has a single stone on the 9×9 center. White plays on three of its four adjacent points. The Black stone has one liberty left — atari. If Black does not run (by adding a stone that shares a new liberty) or capture something that restores a liberty, White’s play on the last liberty takes the stone off the board. After the capture, that intersection is empty again and White has gained one captive.

Capturing two or more stones works the same way: fill the last liberty of the whole group. A “big clump” that looks alive can still die if it has only one shared eye-space and you squeeze it. Do not count diagonal near-misses as liberties. The engine will not.

Suicide is illegal — unless the play captures

You may not play a stone that would have zero liberties after the move, if that move captures nothing. That is suicide, and it is illegal. Exception: if the play fills the opponent’s last liberty and removes their stones, your stone (or group) then has liberties in the newly emptied intersections, so the play is legal. That is how you recapture in a tight fight.

Worked example: White has a one-stone group with one liberty left, and that liberty is also the only liberty of a surrounding Black group. Black playing there captures White, and Black’s group lives. White playing a stone into a hole with no liberties and no capture is rejected. Trust the highlights the UI gives you; if a point is not offered, it is not legal.

Two passes end the game

Pass when you believe another stone would lose points — filling your own territory, or adding a stone the opponent will capture for free. Two consecutive passes (Black passes, White passes, or White then Black) end the game and trigger scoring. You do not have to fill every leftover dame (neutral points between groups) if both players agree the fight is over by passing, but on 9×9 it is often clearer to fill obvious dame so the territory map is unambiguous. The engine scores what is on the board after the second pass; it does not argue about “dead stones you forgot to take” if you left them with liberties. If a group is dead, capture it before you pass, or it may still be sitting there with liberties and count as alive.

How GAMEAREA scores 9×9

After two passes, each player scores:

• Stones of their color remaining on the board
• Empty intersections surrounded only by their color (territory)
• Stones they captured during the game
• White additionally receives 6.5 komi

Empty intersections touching both colors are not territory for either side. A seki-like shared life on 9×9 is uncommon but possible; those empties usually count for nobody. Worked example of the komi: both players pass on an empty board. Black has 0 stones, 0 territory, 0 captives. White has 0 + 0 + 0 + 6.5 = 6.5. White wins. That is why Black must make more than 6.5 points of actual board value to win. The half-point means you will not tie on a clean integer split.

Thick connected groups are hard to kill because they keep liberties. Thin shapes — one-space jumps with cuts available — invite the opponent to split you into two dying groups. On 9×9 the corners and sides are close; a wall across the center can dominate half the board. Play fewer “probe” stones than you would on 19×19. Every stone is a bigger percentage of the map.

A first-game checklist

1. Place on intersections, not in the boxes.
2. Count liberties of any group you touch — yours and theirs.
3. Do not play suicide unless the move captures.
4. If a group has one liberty, it is in atari; answer or lose it.
5. Pass when extra stones lose points; two passes score the board.
6. White’s 6.5 komi is real. Black needs a visible lead on the stones and territory.

Go on GAMEAREA is 9×9 with that scoring. Private rooms and ranked seats use the same engine. If you want a king to hunt instead of territory, chess is the live duel with checkmate. If you want a faster flip-the-disc fight on an 8×8 grid, Reversi is the other short classic on the shelf. Do not call Reversi “Go.” The capture rules are not the same.

Play two games where you only try to keep one group alive and surround a corner. Then play two where you try to kill one opposing group. That is the whole beginner syllabus. Open the Go page when you want the board without a download. For a week of mixed classic practice, the 7-day practice plan still applies: short sessions, real rules, no invented drills.

Frequently asked questions

Why 9×9 instead of 19×19?

GAMEAREA’s live Go board is 9×9. It teaches liberties, capture, and territory without a three-hour professional-length game. Komi is 6.5 for White on this size. If you learned on 19×19 elsewhere, the stones still do not move; only the map is smaller.

Does White always get 6.5 komi?

Yes on this live board size. It is added to White’s score at the end: stones plus territory plus captives plus 6.5. Black plays first; komi is the compensation.

Can I play a stone that captures and also looks like suicide?

If the play captures opposing stones and your stone then has liberties, it is legal. If the play captures nothing and your stone would have zero liberties, it is illegal. The engine rejects the second case.

What if I pass and my opponent does not?

The game continues. Only two consecutive passes end scoring. One pass is just a skipped turn.

Where should I play a first game?

Open the 9×9 Go page and take a casual or bot seat if one is offered in the room list. Guest play is enough to learn placement. An account is for ranked identity.