Sidechess — Play Chess In Chrome extension icon

Sidechess — Play Chess In

📦 v1.0.0
💾 5.62MiB
📅 2026-05-16
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Overview

SideChess turns your Chrome side panel into a quiet chess board you can
play whenever you have a minute.

— Real Stockfish 18 engine inside. Strength scales from absolute beginner
(~600 Elo) to full grandmaster level (3000+ Elo).
— Two simple sliders: how long the engine should think, and how strong
it should play. That's the entire setup.
— Make a move, switch tabs, come back later. Your game is saved
automatically.
— Works completely offline. No accounts. No tracking. No internet
needed after install.
— Light and dark themes.

Perfect for slow correspondence-style games during the workday, when
you don't want to commit to a 10-minute blitz on a chess website.

The engine uses Stockfish (GPL-3) and chess pieces by Cburnett (CC BY-SA 3.0).
Open source — see GitHub link in support page.

Tags

Lifestyle/games tab-management lifestyle/games

Privacy Practices

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

🔐 Security Analysis

This extension hasn't been security-scanned yet.

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