Chess Vault

A plugin for Obsidian that syncs your chess games from Lichess and Chess.com directly into your vault. Games are saved as embedded boards — you can view and analyze them right inside your notes.

Features

• Sync games from Lichess and Chess.com simultaneously
• Two saving modes: single file or separate file per day
• Incremental sync — only new games are fetched each time
• Optional prefix before each game: date and/or rating change (rating change — Lichess only)
• Frontmatter with combined daily statistics (wins, losses, draws, win rate, etc.) — available in daily mode only
• Auto sync at a configurable interval
• Automatic creation of folders and files
• Settings with collapsible sections

Installation

Manual

1. Download or clone the repository
2. Install dependencies and build the plugin:

   npm install
   npm run build

3. Copy the following three files into your vault's plugin folder:

   vault/
   └── .obsidian/
       └── plugins/
           └── obsidian-chess-vault/
               ├── main.js
               ├── manifest.json
               └── data.json

4. In Obsidian: Settings → Community Plugins → enable Obsidian Chess Vault

The .obsidian folder may be hidden — enable hidden files in your file explorer.

Usage

Setup

Open Settings → Obsidian Chess Vault and fill in:

You can fill in one or both usernames — the plugin will only fetch from services where a username is provided.

⚠️ To display embedded chess boards correctly, enable:

Settings → Editor → Render HTML

Sync

Open the Command Palette (Ctrl+P / Cmd+P) and select:

Sync games

Or assign a hotkey in Settings → Hotkeys.

Saving Modes

Single File

All games are appended to the end of one selected file — first Lichess games, then Chess.com games.

Daily Files

A separate file is created for each day in the selected folder. File name format: YYYY-MM-DD.md, for example 2026-04-25.md.

Each file starts with frontmatter containing combined daily statistics from both platforms:

---
date: 2026-04-25
games: 6
wins: 4
defeats: 1
draws: 1
win_rate: 67%
---

The set of fields can be configured in the 📊 File Properties (frontmatter) section.

Lichess games are shown as embedded boards. Chess.com games are shown as links (Chess.com does not support public iframe embedding):

[♟ Chess.com — открыть партию](https://www.chess.com/game/live/uuid)

Prefix Settings

In the section ⚙️ Show before each game, you can enable:

• Game Date — end time of the game (both platforms)
• Rating Diff — rating change after the game (Lichess only)

Example with both enabled (Lichess):

> 📅 25.04.2026, 19:58:00
> 📈 Rating diff: `+5`
<iframe ...></iframe>

Auto Sync

Enable Auto sync in settings to sync automatically at a fixed interval. The interval is configurable in minutes (minimum: 1). The timer starts when Obsidian loads and resets whenever settings are changed.

Sync & Reset

By default, on first launch the plugin loads games from the last 30 days.

The settings display the date of the last sync. Reset options:

• Reset (30 days) — next sync will load games from the past month
• Reset (all time) — loads all games ever played

⚠️ Importing a large number of games (1000+) may cause errors due to Lichess API limits and file size. Use "all time" reset carefully.

Project Structure

src/
├── main.ts           — main plugin class, settings UI
├── lichgame.ts       — Lichess API requests
├── chesscomgames.ts  — Chess.com API requests
└── obrab_games.ts    — game processing, statistics
data.json             — saved plugin settings
manifest.json         — plugin metadata

Development

npm install       # install dependencies
npm run dev       # build in watch mode
npm run build     # production build

Requirements

• Obsidian 0.15.0+
• Node.js 18+ (for building)
• Lichess and/or Chess.com account