Chess tournament software
Quiescence
Organize chess engine matches and tournaments, follow games as they run, and review results in one desktop workspace.
For chess engine developers and tournament organizers
Download Quiescence for free
Download Windows command-line tools
The ZIP includes the installer, third-party notices and corresponding source materials. Extract it before running the installer. Microsoft WebView2 may be downloaded during installation if it is not already present.
The command-line ZIP includes the tournament runner, a demo engine and configuration, and third-party materials.
The command-line tools and bundled demo engine require the Microsoft Visual C++ x64 runtime. If it is missing, install the Microsoft Visual C++ Redistributable for x64.
The installer and command-line executables are self-signed. Windows may show an unknown publisher or SmartScreen warning; the signature does not verify the publisher's identity.
Linux x86-64
Download for Linux (Debian/Ubuntu)
Download Linux command-line tools
The archives include third-party notices and source materials. The desktop archive contains an unsigned Debian package built for Ubuntu 22.04 x86-64; installation requires GTK 3 and WebKitGTK 4.1.
Ask about QuiescenceFrom setup to results
Configure engine tournaments
Run UCI and CECP chess engines in head-to-head matches, round robins, gauntlets or knockouts. Choose time controls, openings and the number of simultaneous games; save configurations and presets for another run.
Follow games and manage the run
Watch live boards and moves alongside progress, standings and engine statistics. Pause or resume scheduling, stop a run, and review recorded operator interventions when a game needs attention.
Review and share results
Explore standings, game results and match statistics, including Elo estimates. Keep PGN game records and event logs for later review, and optionally broadcast live games.
Organize human Swiss events
Review and publish pairings, enter or correct results, and manage byes and withdrawals. Swiss pairings require a separately installed bbpPairings engine.
Run from the command line
Use a tournament configuration to run engine matches without the desktop interface. The downloadable command-line tools include a sample configuration and demo engine to help you get started.
Quiescence is not endorsed by FIDE. Check the rules and reporting requirements for your event before relying on its results.
See Quiescence in action
These sample screens show a tournament from setup through results.



Your tournament records
Tournament settings, results and logs are stored on your computer. Broadcasting is optional; anyone with access to a broadcast can see the information it shares. Review records before sharing them.
For questions or support, email support@timastra.com.