Welcome to F97.BE!

Behold, here are the latest updates to the site. Yes, I know, the word latest is doing a lot of heavy lifting here.

You can now play against Zugwunder online. The chess engine runs directly in your browser as WebAssembly: no installation, no server, from beginner to full strength, on desktop and mobile. More about the engine on the Zugwunder page.

The Zugwunder chess engine now also runs on Linux. The UCI engine comes as a single, statically linked program with no dependencies, so it works on Ubuntu and any other 64-bit distribution. Add it to your favourite UCI chess program, such as Cute Chess or Scid vs. PC.

Zugwunder UCI 1.1.4 for Linux x86_64 (Intel/AMD, needs AVX2: Intel Haswell 2013 or later, AMD Zen)
Zugwunder UCI 1.1.4 for Linux aarch64 (64-bit ARM, e.g. Raspberry Pi 4/5)

Released Zugwunder 1.1.0, a chess app for Macs with Apple silicon, and Linux. I built it to train tactics and endgames, and, as these things go with me, it escalated slightly: it now comes with its own UCI chess engine, estimated at about 2986 Elo on the CCRL scale. Its neural network is still learning. The app speaks German, English, French and Dutch, and the engine can be installed for use in other chess programs.

Read the full story or download Zugwunder 1.1.0.

Discover my release-ready macOS applications, including NeuralWeave AI, fm, fmav, f3, and GeneaFlow. These projects bring together artificial intelligence, professional file management, cryptographic data integrity, solar-energy forecasting, and genealogy research.

This site has now moved to my own CMS system eCMS and my version control system eee-vcs.

Released Willy Willy, a lightweight, native macOS menu bar app for streaming Belgian DPG Media radio stations with live song information and integrated Sonos multi-room audio control.

Download here.