Tampermonkey chess scripts are browser userscripts that modify or enhance the experience on sites like Chess.com or Lichess. While some are harmless utilities, others are advanced cheating tools designed to be "undetectable".
Players use browser scripts for a variety of legitimate reasons, ranging from aesthetic overhauls to deep statistical analysis. 1. Custom Themes and Boards
: Download it from the Chrome Web Store or Firefox Add-ons . tampermonkey chess script
We need a function that waits for the board to load before running.
Automatically clicking the "New 3+2 Game" button the exact millisecond a match ends. Automatically clicking the "New 3+2 Game" button the
Tampermonkey scripts for chess are broadly divided into utility scripts (which improve the user interface) and assistance/bot scripts (which use engines to suggest moves) Popular Utility Scripts
| Tier | Name | Function | Detection Risk | | :--- | :--- | :--- | :--- | | Tier 1 | Aesthetic | Board skins, piece sets, dark mode. | None | | Tier 2 | Informational | Pre-move highlighting, clock management, game analysis. | Low | | Tier 3 | Automated / Engine-assisted | Legal moves, best move arrows, auto-play. | Very High | Refresh the page
Open Chess.com or Lichess. Click on the Tampermonkey extension icon in your toolbar to verify that the script is listed as "Enabled" and running on the current site. Refresh the page, and you should see your modifications in action. Critical Safety and Fair Play Warning
However, if a script touches the competitive integrity of the game—by calculating moves, highlighting blunders in real-time, or automating your play—steer clear. The thrill of chess lies in the human battle of wits, and no browser extension can replace the satisfaction of a honestly earned checkmate.