vim-goban

A terminal-based Go (Baduk) game controlled by Vim motions.

vim-goban lets you play Go directly in your terminal with familiar Vim keybindings.

Built with Python and powered by GNU Go AI.

Features

• 🏁 Terminal UI based Go board
• 🎮 Vim-style keyboard navigation (h, j, k, l) or arrow keys
• ⏩ Jump and position movement inspired by Vim motions
• 🤖 GNU Go AI integration for opponent gameplay
• ⚫⚪ Go rule based stone placement and capture system
• 🔄 Undo and recent move tracking support
• ⏸️ Pass system with automatic scoring after consecutive passes
• 🎨 Terminal color board rendering
• ⌨️ Keyboard-focused lightweight gameplay experience

Screenshot

Installation

Requirements

• Python 3.10+
• GNU Go

Install GNU Go

macOS

brew install gnugo

Ubuntu / Debian

sudo apt install gnugo

Check installation:

gnugo --version

Install vim-goban

Using pipx (Recommended)

vim-goban is a terminal application, so installing with pipx is recommended.

If you don't have pipx installed:

macOS

brew install pipx
pipx ensurepath

Linux

python3 -m pip install --user pipx
pipx ensurepath

Install vim-goban:

pipx install vim-goban

Run

goban

Controls

Movement

vim-goban uses Vim style movement.

Key	Action
h, ←	Move left
j, ↓	Move down
k, ↑	Move up
l, →	Move right

Jump Movement

Key	Action
Ctrl+h, b	Jump left
Ctrl+j, ]	Jump down
Ctrl+k, [	Jump up
Ctrl+l, w	Jump right

Position Movement

Key	Action
Shift + I	Move to far left
Shift + A	Move to far right
Shift + H	Move to top of column
Shift + M	Move to middle of column
Shift + L	Move to bottom of column

Note: Some Ctrl key bindings may conflict with terminal shortcuts depending on your terminal emulator.

Game Controls

Key	Action
Enter	Place stone
p	Pass
	Two consecutive passes end the game (Score)
r	Show recent move positions
c	Toggle Color Theme
n	Start a new game
u	Undo last move
?	Toggle help
q	Quit game

Gameplay

Capturing Stones

When a group of stones has no remaining liberties, the stones are removed from the board.

Example:

Before:

. ○ .
○ ● ○
. ○ .

After:

. . .
. . .
. . .

AI

After placing a stone, GNU Go responds automatically.

GNU Go provides the computer opponent while vim-goban handles:

• Board rendering
• User input
• Game state
• Go rules

Rules

Pass + Pass : Both players pass consecutively → Game ends Score : GNU Go calculates territory and winner

Project Structure

vim-goban/
│
├── goban/
│   ├── main.py        # Game loop
│   ├── board.py       # Go rules and board state
│   ├── renderer.py    # Terminal renderer
│   ├── input.py       # Vim motion input
│   └── engine.py      # GNU Go communication
│
├── tests/             # Unit tests
│
├── README.md
├── LICENSE
└── pyproject.toml

Development

Create virtual environment:

python -m venv .venv

source .venv/bin/activate

Install package locally:

pip install -e .

Run:

goban

License

MIT License

See LICENSE.

Author

@yonghun16