How to Play Go: The Ancient Asian Board Game

Go is the oldest board game still played in its original form — at least 2,500 years old, originating in China where it’s called weiqi. Two players take turns placing stones on a grid, trying to surround more territory than their opponent. The rules fit on an index card. The strategy takes a lifetime. Here’s everything you need to start playing, from setup through scoring.

What you need

A Go board with a 19×19 grid (361 intersection points), 181 black stones, and 180 white stones. The asymmetric stone counts are deliberate — Black moves first and a complete game can fill almost every intersection. Beginners usually start on a 9×9 board with much smaller stone counts.

Stones are placed on intersections, not in squares. This is the most common mistake new players make coming from chess or checkers.

The basic rules

Setup

The board starts empty. Black plays first by placing a single stone on any unoccupied intersection. Then White places a stone. Then Black, then White. There is no piece movement after placement — stones stay where they’re placed unless captured.

Liberties

The empty intersections directly adjacent (horizontally or vertically — never diagonally) to a stone are called its liberties. A stone in the middle of an open board has four liberties. A stone in the corner has two. A stone on the edge has three.

Stones of the same color that are directly connected form a single group, and the group’s liberties are all empty intersections adjacent to any stone in the group.

Capture

A group is captured when all of its liberties are filled by opposing stones. Captured stones are removed from the board and become prisoners — they affect the final score.

You cannot place a stone that would have zero liberties (a “suicide” move) unless placing it captures one or more enemy stones first. If the placement creates a capture, the captured stones are removed and your new stone gains the resulting liberties.

The Ko rule

You cannot make a move that immediately recreates the previous board position. This prevents infinite capture-recapture loops in single-stone exchanges. The threatened player must make a different move (a “Ko threat”) elsewhere on the board before they can retake the contested stone.

Passing

You may pass your turn at any time. When both players pass in succession, the game ends.

Scoring

After both players pass, count up territory and prisoners. Two main scoring systems exist:

Japanese / Korean scoring (Territory)

1. Count empty intersections surrounded only by your stones. Each is one point.
2. Add one point for each enemy stone you captured during the game.
3. White adds komi (a fixed compensation for Black moving first), usually 6.5 points.

Chinese scoring (Area)

1. Count empty intersections surrounded only by your stones.
2. Add the number of your own stones still on the board.
3. White adds komi, usually 7.5 points under Chinese rules.

The two systems usually produce the same winner. Most online servers (KGS, OGS, Tygem) let you choose.

Eyes and life

The single most important concept in Go after the basic rules. A group with two separate enclosed empty spaces — called “eyes” — cannot be captured. The opponent can’t fill both eyes simultaneously, and filling either one alone would be suicide. A two-eyed group is “alive” permanently.

A group with only one eye is “dead” — eventually the opponent will fill the eye and capture the whole group. Recognizing whether your groups have, or can make, two eyes is the central tactical skill in Go.

The four phases of a game

Fuseki (opening)

Players claim corners first, then sides, then center. Corners give the most territory per stone because two edges of the board do part of the work of enclosing space. Most opening moves go on the 3-3, 3-4, 4-4, or 5-4 points near the corners.

Joseki (corner sequences)

Standard local exchanges in the corners. Hundreds are documented; beginners only need to know two or three to start. Joseki produce locally balanced positions that don’t lose immediately.

Middle game

Frameworks expand, invasions happen, fights break out. This is where most decisive errors are made. Reading ahead — visualizing sequences of moves and replies — matters most here.

Endgame (yose)

Territory is mostly settled. Both players make small territorial gains on boundaries between black and white areas. A typical endgame move is worth 1-5 points, but multiple endgame moves can swing a game.

Basic strategy for beginners

• Play in the corners first. Corner territory is cheaper to claim than side or center territory.
• Make two eyes. Any group you build needs to either have two eyes or have an obvious path to two.
• Don’t play stones in your own territory. Each stone placed inside your secured space is a wasted point in territory scoring.
• Attack indirectly. Surrounding an enemy group’s liberties usually wins more than chasing single stones.
• Trade losing stones for gain elsewhere. A few sacrificed stones are fine if you gain territory or thickness in return.
• Don’t fill in your own eyes. If you place a stone inside your own eye and it’s the second-to-last empty space in your group, you’ve just killed your group.

Handicap stones

Go’s handicap system is unusually elegant. Stronger players give weaker opponents a head start by letting them place 2-9 black stones on specific star points before the game begins. White still moves first. The handicap level adjusts the practical strength gap by roughly one rank per stone, so two players of very different skill can have a competitive game.

Board sizes

• 9×9. Beginner standard. A full game takes 15-20 minutes. Most opening principles still apply but the strategic depth is much smaller.
• 13×13. Intermediate. Good middle ground between 9×9 and 19×19. Used for casual play and many online matches.
• 19×19. The full board and the standard for tournament play. A serious game takes one to three hours.

If you’re learning, play 9×9 for your first 20-30 games before moving up.

Where to play online

Three established free servers run in any modern browser:

• Online Go Server (OGS) at online-go.com — modern web client, great for beginners, large player pool.
• KGS at gokgs.com — older, more traditional, very active English-speaking community.
• Tygem and Fox Go — Korean and Chinese servers, the strongest player pools in the world but interface barriers for non-Asian-language players.

OGS is the easiest entry point. Make an account, play a few 9×9 games against bots, then jump into ranked play against humans.

How Go differs from chess

Chess starts with all pieces on the board and removes them through play. Go starts empty and adds stones. Chess has piece roles and movement patterns; Go has identical stones whose value depends entirely on position. Chess’s branching factor is around 35 moves per position; Go’s is around 250. That’s why computer Go held out against AI for two decades after chess fell to Deep Blue — until DeepMind’s AlphaGo beat Lee Sedol in 2016.

Both games reward calculation and pattern recognition. Go rewards them on a much larger spatial scale.

Frequently asked questions

How long does a game of Go take?

A 9×9 game takes 15-30 minutes. A 19×19 casual game takes 60-90 minutes. Tournament games with byo-yomi (overtime per move) can run two to three hours. Online quick games are usually 15-25 minutes for 13×13.

What’s the difference between Go and weiqi and baduk?

Same game, different language. “Weiqi” is Mandarin Chinese (literally “surrounding game”), “baduk” is Korean, and “go” comes from the Japanese “igo.” The rules and equipment are identical worldwide.

Can I play Go on a chess board?

No. Go uses a 19×19 grid (or 9×9 / 13×13 beginner boards); a chess board is 8×8 squares. The grids don’t match. You’d also need 360+ stones, which most chess sets don’t include.

What does komi mean?

Komi is the points White receives at the end of the game to compensate for Black moving first. The standard komi is 6.5 in Japanese rules and 7.5 in Chinese rules. The half-point ensures there are no draws.

Is Go harder than chess?

The rules are simpler. The strategic complexity is greater — Go has roughly 10^170 legal positions to chess’s 10^46. Most players find Go takes longer to reach competence in, partly because there’s less established theory at the amateur level.

The bottom line

Go’s rules fit on a postcard. The game inside them has occupied serious players for two and a half millennia. Start on a 9×9 board, learn to make two eyes, focus on corners before sides, and play against a bot or a friend before joining a server. The first time you read a five-move capture sequence correctly, you’ll understand why the game still has tournament grandmasters and a billion-dollar industry behind it. And when your brain needs a 60-second reset, the Chrome Dino game is the opposite extreme.