Chessis: Chess Analysis

Chessis is a powerful and intuitive chess analysis app designed for players who want to elevate their game through in-depth insights and advanced reporting. Built around the world-renowned Stockfish engine, Chessis lets users analyze their chess games, detect blunders, explore move alternatives, and understand the reasoning behind every decision on the board.

For those looking for even more precision and control, Chessis also offers a Pro version that unlocks advanced features such as deep analysis, NNUE support, unlimited engine lines, and mistake alerts while playing.

Advanced Game Analysis

Analyze your entire game using the Stockfish chess engine. Identify blunders, mistakes, missed wins, and best moves instantly. Game reports include performance summaries, move accuracy, and average centipawn loss CPL, giving a complete breakdown of your strengths and weaknesses.

Position & Board Analysis

Set up custom positions using the Board Editor or import PGN files for in-depth study. Chessis allows analysis by time or depth, making it ideal for both casual reviews and detailed research sessions.

Comprehensive Reports

Each analysis generates a detailed Game Report that highlights inaccuracies and key turning points. Users can adjust the report depth or report time to control the precision and duration of analysis—ensuring consistent and insightful feedback.

Interactive Learning Tools

Get blunder alerts that not only highlight errors but also explain why they occurred. Play through engine lines, visualize threats, and learn alternative strategies to improve future gameplay. Arrows and visual guides make it easier to understand tactical patterns.

Customization and Control

Chessis offers multiple customization options:

· Board and piece styles

· Local and imported engines (OEX support)

· Hash values and thread settings

· Different languages and chess variants like Chess960 (Freestyle Chess)

Play and Practice

Challenge the built-in computer at various skill levels or use a game timer to simulate competitive conditions. Explore thousands of openings through the integrated game database and search positions using FEN queries.

Pro Version Benefits

The Pro version enhances your analysis experience with advanced tools such as:

· Unlimited engine lines

· Deep Analysis & NNUE

· “Why Blunder” playback

· Real-time move strength and mistake alerts

· Ad-free experience

· Unlimited game analysis forever

Chessis continues to evolve with new updates, features, and performance enhancements. Players are encouraged to share feedback and suggestions at chessimprovementapps@gmail.com to help make the app even better.

FAQs

1. What is Chessis used for?

Chessis is a chess analysis app powered by the Stockfish engine. It helps players review games, detect mistakes, and improve strategy through detailed insights.

2. Can I analyze games from Chess.com or Lichess?

Yes. Chessis supports game imports from both Chess.com and Lichess, allowing you to review and analyze your online matches effortlessly.

3. What’s the difference between free and Pro versions?

The Pro version unlocks advanced features like Deep Analysis, NNUE support, unlimited engine lines, “Why Blunder” playback, and an ad-free experience.

4. Can ChessIs work offline?

Yes. Once installed, most features—including local analysis and PGN viewing—work offline. Internet access is only needed for updates and certain online imports.

5. How does the app help improve chess skills?

By analyzing move accuracy, showing blunders, and explaining why mistakes happen, Chessis helps players understand patterns, improve calculation, and strengthen strategic thinking.

Version History

v9.2—31 Oct, 2023

Bug fixes

v9.1—15 Jul, 2023

Bug fixes

v9.0—11 Jul, 2023

Sharp Moves

Bug fixes

Please feel free to provide your feedback at support@chessis.app. Thank you!