Chess.com Tweaks

Chesscom Enhancer – New Advanced Features & Improvements for Chess.com

A free and open source extension that adds must-have features and improvements to Chess.com matches - Play Sessions: Set a session goal by number of games or minutes, then get auto-queued until you reach it. - Lifetime Score: Always see your lifetime score against your current opponent. - Hide Ratings: Hide player ratings in your games. - Louder Low-Time Warning - Visual Time Warning: Adds a glowing border around the board that changes color depending on whether you’re up or down on time. - Lichess Review Button: Open your completed Chess.com games directly in the Lichess game reviewer. - Picture-in-Picture Mode: Pop the board into a small always-on-top window so you can play while multitasking. - Anonymize Opponent: Hide your opponent’s identity completely, with the option to reveal it in one click. - ...And more, including additional quality-of-life tools for a cleaner and more focused playing experience. Chesscom Enhancer is completely free and open source.. Check it out here: https://codeberg.org/TheUllernProject/chesscom-enhancer-extension

Chee - Live Chess Analysis

Real-time Stockfish analysis on chess.com and lichess — eval, best moves, classifications, traps, and more Chee adds a real-time analysis panel to your chess games on Chess.com and Lichess.org. It runs Stockfish (one of the strongest chess engines) entirely in your browser using WebAssembly — no server, no account, no data sent anywhere. Analysis: • Multi-line analysis — see the top 3–5 best moves and continuations • Adjustable search depth (15–22 ply) with optional wait-for-full-depth • Move classifications — Brilliant, Crazy, Best, Excellent, Good, Inaccuracy, Mistake, Blunder • Move guard — pick up a piece to see which destination squares are bad moves (! badges) • Tactical insights — dashed arrows show the best move after Mistakes and Blunders • Pre-move hints — see the engine's best move or classification-based hint arrows • Trap detection (Trapboy) — finds traps via sacrifice detection, tempting capture analysis, and a 10-trap opening database (Legal, Lasker, Noah's Ark, and more) • Crazy sacrifice detection — flags wild material sacrifices that maintain advantage • Book move detection with continuation arrows from ECO opening database Display: • Board preview — hover analysis line moves to see the predicted position on the board • Eval bar showing who's winning at a glance • Eval score chart — SVG area chart with hover tooltip tracking the game • Opening name display — 193-entry ECO opening database • Accuracy tracker — running accuracy percentage (chess.com-style formula) • Arrow overlays on the board for suggested moves Export & Debug: • PGN export — copy annotated PGN with eval comments, NAG codes, and player names • Copy FEN to clipboard with one click • Copy debug info — one-click diagnostic dump for troubleshooting UI: • Compact 2-column settings popup with section headers • Draggable panel — drag the header to reposition, double-click to reset • Resizable panel — drag the bottom-right grip to adjust width • Minimize or hide the panel (Alt+C keyboard shortcut) • Catppuccin theme system — Latte, Frappé, Macchiato, Mocha, or auto-match the site theme • All settings apply in real-time — no page reload needed All analysis runs locally in your browser. No data is collected or transmitted.

Chess.com Coordinates Extension

This Chrome extension displays chess square coordinates on chess.com with a hover effect. - Displays coordinates on the chess.com board - Hover effect that highlights the square being hovered over - Works whether the board is flipped or not - Toggle button to enable/disable coordinate display - Hide/show Chess.com's original coordinates - Enable/disable the hover highlight effect - Show coordinates only on hover - Highlight coordinates on legal moves for selected pieces - Adjust the font size of coordinates (50-100%) - Adjust the contrast/opacity of coordinates (2-20%)

Chess.com Highlighter

Highlights attacked and hanging pieces, attackers, defenders, and potential movement squares. This extension is designed to provide an enhanced learning experience for beginner and intermediate chess players on chess.com. Acting as "training wheels" for people new to the game, it offers visual aid that help players improve their understanding of chess fundamentals. 🔹 Highlight Hanging & Attacked Pieces Automatically identify which squares are hanging and under attack by you and your opponent. 🔹 Highlight Movements (Safe, Attacked, Hanging) See which squares are safe, attacked, or will leave your piece hanging before you make your move. Additionally, squares that result in stalemate or checkmate are highlighted. 🔹 Highlight All Attacking & Defending Pieces Select (right-click) any square on the board to highlight its attackers and defenders. Note: Do not use Piece Animations: 'Natural' and 'Arcade'. For some features to work, the 'Highlight Moves' and 'Show Legal Moves' settings need to be turned on. If you encounter any issues or have suggestions for new features, please contact me at chesshighlighter@gmail.com