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Play your way
Human games, local two-player boards, automatic matches, Chess960 and more than 650 personalities with different strength, nationality, psychology and style.
A complete chess world for Windows
ECEIntuition Chess
Play, analyse, learn and organise competitions in one modern workspace, powered by hundreds of human-style personalities and ECE 26.8.1 Intuition HBuP.
Version 26.9.310563 · Released September 8, 2026
650+varied personalities
88,000+offline puzzles
69,898historical master games
7base languages · add your own
One GUI, many ways to enjoy chess
Built for players, learners and engine enthusiasts
ECE combines approachable play with serious analysis, study and competition tools, while remaining free and usable offline.
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Analysis that teaches
Live evaluation, PV, arrows, threats, centipawn loss and Human or Engine Game Review with move badges, key moments and accuracy by game phase.
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Career and competitions
Start at CSR 500, climb divisions, play Cups and Memorials, win trophies and face an official ECE boss. World Cup and Custom Knockout events now include clearer brackets, selectable matches and improved elimination flow; Player Custom remains BETA.
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Study and chess history
Create persistent named ECE Studies from a new position, the current board or a PGN. Keep an autosaved Notebook, bookmark key positions, work from either synchronized side panel and study Standard Chess or Chess960. Multi-game PGN search and nearly 70,000 selected master games remain integrated.
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Puzzles and accessibility
More than 88,000 local puzzles, personal Puzzle CSR, statistics and rated hints. Keyboard board navigation and optional TTS announce moves, turns and clocks.
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Your chess environment
Profiles, backups, themes, 2D/2.5D boards, ECE Official Music, external UCI and WinBoard engines, automatic updates, system diagnostics and the integrated ECE FICS client.
Game Review
Understand what changed the game
Choose a human-oriented review based on lost winning chances or a stricter engine review based on centipawn loss. Compare both sides, inspect key moments and open every move from the graph.
Career Mode
A career designed to continue
Progress through leagues and divisions, follow seasons, CSR and records, enter Cups and Memorials, collect trophies and unlock elite boss challenges while keeping your history.
Great Masters database
Thousands of important games, one click away
Direct access to 69,898 historical and modern games selected from Lumbra’s Gigabase, spanning 1847–2026. Search by player, event or text, then replay, study or analyse inside ECE.
ECE FICS
Play online without leaving ECE
ECE FICS is based on Free Chess Club and connects the GUI to the Free Internet Chess Server while keeping the familiar ECE board and workflow. Source code is available below.
Inside ECE Chess
A visual tour of the complete workspace
Scroll through the thumbnails, choose an area and click the large image to enlarge it.
Free download
Choose your ECE package
The Windows GUI is the complete ECE experience. The standalone engine and Pro Book remain available separately.
ECE Intuition Chess GUI26.9.310563 · 8 September 2026
Complete Windows application with engine, personalities, Career, analysis, historical games, puzzles, tournaments, music, accessibility, profiles and ECE FICS.
Download Windows GUIECE Engine26.8.1 Intuition HBuP · Released September 2, 2026
Standalone UCI engine for external GUIs, testing and tournaments, with personality tools, books and supporting files.
Download engineECE Pro BookOptional opening book
Large professional opening book for repertoire, variety and opening preparation.
Download Pro BookStandalone engine: preserve the original folder structure; ECE personalities and their books are required.
Pro Book: approximately 4 GB of additional RAM is required while fully loaded.
Installation: ECE needs read/write access for profiles, tournaments, updates and user data. The default path is recommended.
Help: the complete multilingual guide is available online and directly in the GUI.
From the community
Community voices
Thank you to everyone who has played and tried ECE, contributed to its improvement and patiently waited for corrections to any bugs.
Project information
Free, independent and made with passion
ECE Chess is an independent chess project conceived and developed by Luigino Viscione, created for playing, learning and experimentation, without commercial purposes.
Recommended minimum
Windows: 7, 8, 10 or 11.
CPU: 4 cores.
RAM: 8 GB.
Display: 1366×768 minimum; Full HD recommended.
Storage: at least 3 GB, with additional space for books and archives.
Recommended system
Windows: 11.
CPU: 8 cores or more.
RAM: 16 GB or more.
Display: Full HD 1920×1080.
Storage: at least 6 GB.
Thank you to everyone who tests ECE Chess, reports bugs and shares suggestions. Your feedback directly improved this release.