THE LINUX GAMBIT

Jonni Bidwell once again sets a graphics card on fire, this time calculating chess positions…

- Jonni Bidwell

Netflix’s hit show The Queen’s Gambit has opened more people’s eyes to the fascinating world of chess. The characters in that show may be fictional, but chess aficionados will know only too well that the ancient game has seen more than its share of colourful personalities. Ever since a machine beat Garry Kasparov in 1992, chess engines have garnered significant interest. Today, the open source Stockfish engine is considered one of the best in the world, and it regularly beats grand masters.

So it was a little shocking when Deepmind  announced its neural-network based  AlphaZero engine – which had trained itself  (albeit on terribly expensive custom  hardware) in a mere four hours – had  decidedly trounced Stockfish. Stockfish uses  complex heuristics created by chess dons together with brute force (on modern  hardware it has no trouble analysing some   20 moves ahead), whereas, pre-training,  AlphaZero ‘knew’ only the basic rules of chess  and that its goal was to win.