Halogen is a powerful, world-class program capable of analysing and playing chess.
It is currently ranked in the top 30 chess engines.
Halogen is not a stand-alone application and should be used with any popular chess GUI that supports the UCI protocol.
- Uses a neural network for its evaluation function. Halogen makes use of an incrementally updated architecture, inspired by the new NNUE networks in Stockfish. Halogen features an innovative neural network implementation with an abstract architecture that allows networks to be dropped in and replaced at will. Networks are trained through a private, from scratch C implementation
- Null-move pruning.
- Late move reductions
- Quiessence search, an algorithm typically used to extend search at unstable nodes in minimax game trees in game-playing computer programs.
- Transposition table that uses Zobrist Hashing.
- The search routine is multithreaded using the SMP parallelisation technique.
Developer: Kieren Pearson
License: GNU General Public License v3.0
Halogen development is currently supported on the Openbench framework. OpenBench is an open-source Sequential Probability Ratio Testing (SPRT) framework designed for self-play testing of engines. OpenBench makes use of distributed computing, allowing anyone to contribute CPU time to further the development of some of the world’s most powerful engines.
|The largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions.
|Hundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information.
|Replace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS.
|Awesome Free Linux Games Tools showcases a series of tools that making gaming on Linux a more pleasurable experience. This is a new series.
|Machine Learning explores practical applications of machine learning and deep learning from a Linux perspective. We've written reviews of more than 40 self-hosted apps. All are free and open source.
|New to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux.
|Alternatives to popular CLI tools showcases essential tools that are modern replacements for core Linux utilities.
|Essential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users.
|Linux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.
|Surveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal.
|Saving Money with Linux looks at how you can reduce your energy bills running Linux.
|Home computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum.
|Now and Then examines how promising open source software fared over the years. It can be a bumpy ride.
|Linux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.
|Linux Candy reveals the lighter side of Linux. Have some fun and escape from the daily drudgery.
|Getting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers.
|Best Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series.
|These best free books accelerate your learning of every programming language. Learn a new language today!
|These free tutorials offer the perfect tonic to our free programming books series.
|Linux Around The World showcases usergroups that are relevant to Linux enthusiasts. Great ways to meet up with fellow enthusiasts.
|Stars and Stripes is an occasional series looking at the impact of Linux in the USA.