Drag match files or paste position IDs. Analyze with GNU Backgammon, eXtreme Gammon or HedgeHog, filter blunders, export in one click.
The full version for Windows, macOS and Linux.
Nothing to install, works on phones and tablets.
No Anki? The free trainer quizzes your positions on any device, with spaced repetition, and works offline on your phone.
Analysis partner HedgeHog, the online backgammon engine, is built into AnkiGammon on desktop and in the browser. Connect a free account once, nothing to install.
Turn your backgammon mistakes into lasting skills with Anki. Full control over your study cards while the app handles the boring stuff automatically.
Drag match or position files onto the window, or paste an XGID, OGID, GNUID, or full XG analysis straight in. Format is detected automatically, pre-analyzed positions are kept, and the rest get analyzed for you. To set up a position from scratch, use the free backgammon position editor and copy its XGID.
Optionally generate detailed score matrices showing optimal cube actions and best moves at different match scores. Helps you understand how match score affects decisions.
Choose from 7 color schemes (Classic, Forest, Ocean, Desert, Sunset, Midnight, Monochrome) and toggle board orientation (clockwise/counter-clockwise). All settings save automatically.
Point AnkiGammon at your install of GNU Backgammon (free, cross-platform) at the depth you choose, or eXtreme Gammon on Windows (experimental). Or connect a HedgeHog account and analyze online, with nothing to install, on desktop or in the web app. AnkiGammon runs the analysis for you.
Add your own explanations, insights, and reminders to any position. Your notes appear on the flashcard back, making it easy to capture key lessons and strategic patterns while building your deck.
Click moves on the card back to see animated checker movements with smooth arc paths. Optional feature you can enable/disable to match your learning preference.
Send cards to a running Anki in one click with AnkiConnect, or download an .apkg for any Anki app. No Anki? Export a study pack for the free browser trainer, which schedules your reviews on a phone or computer, even offline.
Sort positions into named decks and subdecks with drag-and-drop, drop files straight onto the deck you want, and stay in sync with Anki.
Every card includes equity values, win/gammon/backgammon percentages, and error calculations for all candidate moves. Show options on the front or hide them.
From import to Anki export in seconds. AnkiGammon handles the boring stuff while you control how your cards look.
No installation necessary. Download and run, or open the web app in your browser.
Drag files or paste position IDs. Anything not yet analyzed goes to GNU Backgammon, eXtreme Gammon or HedgeHog. Filter by error threshold and player.
Add notes, pick colors, toggle options visibility. Settings auto-save.
One-click export via AnkiConnect or APKG files.
ankigammon.exeNo installation needed - just download and run.
pip install ankigammon
DMG Installation:
PyPI installation requires Python 3.8+ - DMG is a standalone app with no Python needed.
pip install ankigammon
AppImage Installation:
chmod +x AnkiGammon-x86_64.AppImage
sudo apt install libfuse2sudo apt install libfuse2t64Requires Python 3.8+ for pip install - AppImage is a standalone package with no Python needed.
Installing AnkiConnect: Open Anki → Tools → Add-ons → Get Add-ons → Enter code: 2055492159 → Restart Anki
No. AnkiGammon creates a separate deck (default name: "My AnkiGammon Deck") with no interference to existing cards. You can customize the deck name in settings or by clicking the edit button next to the deck name.
Note: If you export to a deck that already exists with the same name, AnkiGammon will append new cards to it rather than deleting or overwriting existing cards.
Spaced repetition actually works. Anki schedules reviews at the right intervals to build long-term retention. AnkiGammon converts your analysis into Anki flashcards automatically, so you can use spaced repetition for mistakes and reference positions instead of making cards by hand.
You can paste just position IDs (XGID, OGID, or GNUID format) without any analysis. AnkiGammon sends them to an analysis engine for complete move and cube analysis. Pick the engine that fits your setup:
GnuBG and XG need to be installed separately and their path set in AnkiGammon settings. For cube decisions, any of the three can generate full score matrices showing equity at different match scores.
Yes: the AnkiGammon web app runs in your browser with nothing to install, including on phones and tablets, and makes the same cards as the desktop app.
It reads files eXtreme Gammon or HedgeHog already analyzed (.xg, .xgp and .ogxm, or analysis copied from XG with Ctrl+C) right on your device. Connect a free HedgeHog account and it also analyzes .mat, .sgf and .txt matches and pasted position IDs, and adds score matrices.
It downloads an .apkg file to import into Anki or, in Chrome, Edge and Firefox, sends cards straight to a running Anki with AnkiConnect. The desktop app adds GNU Backgammon and eXtreme Gammon as engines, and keeps your positions in a deck tree that stays in sync with Anki.
No. Anki is the main way to study AnkiGammon decks, but the free AnkiGammon trainer runs in the browser on a phone or computer, with no Anki and no account. It asks for the best move or cube action, shows the analysis, grades your answer and schedules reviews with FSRS, the scheduler modern Anki uses. It also has Blunder Streak and Storm drills, and works offline once added to your Home Screen.
Decks come from the community decks, from your own matches through the web app, or from the desktop app with File → Export to Trainer. Progress stays in that browser; a backup file moves it to another device.
AnkiConnect (recommended): Cards appear instantly in Anki while it's running. No import step needed. Install via: Tools → Add-ons → Get Add-ons → Enter code: 2055492159 → Restart Anki.
APKG export: Creates a portable .apkg file you manually import into Anki. Useful when Anki isn't running or for sharing decks with others. Your export method preference is saved.
Yes! When importing files, you can filter by:
These settings are remembered between sessions, so you don't need to reconfigure them each time.
Yes. AnkiGammon offers 7 color schemes to match your preference: Classic (traditional brown/beige), Forest (green/brown), Ocean (blue/teal), Desert (tan/orange), Sunset (purple/orange), Midnight (dark blue/purple), and Monochrome (black/white). You can also toggle board orientation between bearing off on the right, bearing off on the left, or random orientation. All preferences are saved automatically and applied to all generated cards.
We would love hearing theme ideas from the community! You can submit a theme request on GitHub with your color preferences or visual inspiration, or share mockups and brainstorm ideas in our Discord community. The theme system is easy to extend, so well-described requests can be implemented quickly!
AnkiGammon offers extensive customization options for how cards are generated and displayed, all automatically saved:
AnkiGammon supports all common backgammon file formats:
Files with existing analysis (.xg, .xgp and .ogxm can include this) are used directly. Files without analysis are analyzed by the engine you choose in settings: GNU Backgammon, eXtreme Gammon or HedgeHog.
The score matrix shows optimal cube actions across all score combinations in a match. For example, in a 7-point match, it displays the best cube decision for every score from 2-away/2-away through 7-away/7-away.
Each cell contains:
Special indicators:
The matrix is generated by your selected analysis engine at its configured depth and only includes scores where the cube is still live (can be legally doubled).
Yes. The community decks page lists free backgammon Anki decks made with AnkiGammon and shared by other players: checker plays and cube decisions with engine analysis, ready to import into Anki. You can share your own deck there too.
What is HedgeHog?
HedgeHog is an online backgammon engine and AnkiGammon's analysis partner. It analyzes on its own servers, so there is nothing to install, and it works in the desktop app and in the web app, on phones too.
Connecting:
AnkiGammon never sees your HedgeHog password. Analyses count toward your HedgeHog plan: the free plan has a daily allowance, deeper levels need a paid plan, and AnkiGammon asks first when a run would go past what you have left. Match files you analyze are saved to your HedgeHog account, like ones you upload there. Disconnect any time from the same place you connected.
What is GnuBG?
GNU Backgammon is a free, world-class backgammon engine that plays and analyzes at expert level. AnkiGammon can use it to analyze positions and match files that have no analysis yet. It's optional: eXtreme Gammon or HedgeHog can do the job instead.
Installation:
sudo port install gnubgsudo apt install gnubg (Ubuntu/Debian) or sudo dnf install gnubg (Fedora)After installing GnuBG, configure the CLI path in AnkiGammon settings to enable automatic position analysis. You can also configure the analysis depth (0-4 ply) in the settings.
Email contact@ankigammon.com for questions, bug reports, feedback, or anything about the community decks. If a match file doesn't import correctly, attach it to your email.
You can also ask in the Discord server or open an issue on GitHub.