What Is Weiqi and How Do You Start Playing and Studying It?

Weiqi is the Chinese name for the game known in Japanese as Go and in Korean as Baduk. Two players take turns placing black and white stones on a grid board, trying to surround more territory than the opponent. You can start playing within minutes: learn the placement and capture rules, play your first games on a 9x9 board, then move up to 13x13 and eventually the standard 19x19. Studying weiqi means reviewing your games, solving life-and-death problems, and using tools such as SGF viewers and AI analysis engines like KataGo.

The Basic Rules of Weiqi

The rules are small enough to learn in one sitting:

• Placement: Players alternate turns. Black moves first. Each turn you place one stone on an empty intersection, or pass.
• Liberties: A liberty is an empty intersection directly adjacent (up, down, left, right) to a stone or group of connected stones.
• Capture: When a stone or connected group loses its last liberty, it is removed from the board.
• Suicide: You normally cannot place a stone so that your own group would have no liberties, unless the move captures opposing stones first.
• Ko: A rule prevents endless recapture of a single stone in an immediate loop; you must play elsewhere before retaking.
• Goal: The player controlling more territory (empty intersections surrounded by their stones) plus captured stones wins.

Scoring details vary slightly between rule sets (Chinese, Japanese, Korean), but for a beginner the practical difference is small. What matters first is understanding liberties and capture.

Choosing a Board Size

Beginners often assume they must start on the full 19x19 board. In practice, smaller boards teach the core skills faster because every move has clearer consequences.

A common path is to play many 9x9 games until capture and connection feel natural, then move to 13x13, and only later to 19x19. There is no fixed number of games required — move up when the smaller board starts to feel cramped rather than instructive.

How to Start Playing

1. Learn the rules using a short tutorial or a few explained example games. Focus on liberties and capture before anything else.
2. Play on a 9x9 board against another beginner or a weak computer opponent. Expect to lose stones constantly at first; that is normal.
3. Finish games and count. Playing to the end and scoring teaches you what territory actually looks like.
4. Review each game briefly. Even a few minutes of looking at where stones died helps more than playing another game immediately.
5. Gradually increase board size as your reading of local fights improves.

If you have no opponent nearby, online servers and apps provide opponents at every level, including beginner-friendly bots.

How to Study Weiqi

Improvement in weiqi comes from a mix of playing and structured study. The main study activities are:

• Game review: Replay your own games and stronger players' games to see where moves went wrong.
• Life-and-death problems (tsumego): Short puzzles where you read out whether a group can live or be killed. These build the calculation skill used in every game.
• Opening and joseki study: Standard corner sequences and opening patterns, useful once basic tactics are solid.
• AI analysis: Modern engines can point out mistakes and suggest alternatives, which is especially helpful when no strong human teacher is available.

A practical routine for a beginner is: play one game, review it, then solve a handful of life-and-death problems. Consistency matters more than volume.

Tools for Playing and Studying

Several categories of tools support weiqi study:

• SGF viewers and editors: SGF is the standard file format for recording games. A viewer lets you step through moves and navigate the game tree, including variations.
• AI analysis engines: KataGo is a widely used open-source engine that evaluates positions and suggests moves.
• Board recognition: Some apps can read a board position from a photo, which is useful for digitizing games played on a physical board.
• All-in-one apps: Free, open-source options such as Kaya combine play, study, and analysis, with AI analysis (KataGo), board recognition from photos, SGF support, and game tree navigation, available on desktop and web.

When choosing a tool, check whether it supports SGF (so your games are portable), whether it includes or connects to an analysis engine, and whether it runs on the platform you use. For pure study, an SGF viewer plus an AI engine covers most needs; an all-in-one app simply reduces setup.

Common Beginner Pitfalls

• Starting on 19x19 too early. The board is large enough that beginners cannot see the consequences of their moves, which slows learning.
• Ignoring liberties. Most early losses come from failing to notice that a group is about to be captured.
• Playing only, never reviewing. Without review, the same mistakes repeat indefinitely.
• Overusing AI analysis. Engine suggestions are useful, but relying on them without trying to read the position yourself weakens the calculation skill you are trying to build.

A Reasonable Starting Plan

If you are new to weiqi, a workable first month looks like this: learn the rules, play 9x9 games regularly, review each one briefly, and solve a few life-and-death problems between games. Add a 13x13 board once capture feels automatic. Introduce AI analysis and SGF tools when you want deeper feedback, and treat the 19x19 board as a later step rather than the starting point.