Chessigma: A Free Chess Analysis Tool 109

Chessigma is a free chess analysis tool that can directly analyze your games from Chess.com, Lichess, or PGN files, quickly providing detailed reports and improvement suggestions. It not only offers game analysis results, but also includes an AI coaching feature that gives you personalized guidance.

Chessigma Core Features

• Free Unlimited Analysis: No payment required—you can upload and analyze your games anytime, with no usage limits.

• Multi-Platform Support: Import games from Chess.com, Lichess, or PGN files.

• Detailed Reports: After analysis, a report is generated that includes move-by-move evaluations and recommended best moves.

Chessigma Technical Principles

• Chessigma uses the powerful Stockfish 16 chess engine. It compiles Stockfish into WebAssembly format, so the analysis runs directly in your browser without relying on expensive cloud servers. This saves operational costs and ensures the core reporting features remain free forever.

• In terms of analysis depth, most games can be analyzed to depth 14, which balances analysis quality and waiting time. If a game matches Lichess's opening database, cached evaluations are used, allowing analysis up to depth 50. An "In-depth Analysis" button will be added in the future, letting you adjust the analysis depth based on your computer's performance.

Chessigma Special Features

• Custom Move Labels: It has its own set of move evaluation labels, such as "Sigma" to "Clown," used to judge the quality of each move.

• AI Coaching: Based on your game performance, it provides more targeted training suggestions and directions for improvement.

How to Use Chessigma

1. Open the website and go to the analysis page.

2. Paste your PGN file, or follow the on-screen prompts to make moves step by step.

3. Review the engine's evaluations, best moves, and variation examples to find areas where you played poorly and make targeted improvements.

4. If you want to use it offline or host it yourself, you can refer to WintrChess's open-source code and deploy it locally or on a server (suitable for technically savvy users).

Frequently Asked Questions

• Will my account get banned? Using Chessigma to analyze games will not affect your accounts on other platforms.

• Is the Chessigma report free? The core reporting features will always be free.

• Can I analyze in bulk? Currently, you cannot upload multiple PGN files for analysis at once, but this feature is already planned.

• How is it different from Chess.com? Chess.com free users are limited to only 2 analyses, while Chessigma achieves "free + unlimited analysis" by running Stockfish on the frontend.