Lozza - Javascript chess engine inspired by Fabien Letouzey's Fruit 2.1. Lozza was an exercise in principal variation search and hand-coded evaluation. It's easy to use Lozza into your web projects. Communication is via the UCI protocol, which also allows it to be used offline in chess user interfaces via Nodejs (etc.).
Lozza 10 - what new?
Lozza 10 removes the need for Node.js when using Lozza in chess user interfaces; use the appropriate binary instead. lozza.js is now specifically for use in the browser only. 50 - 100 Elo increase over Lozza 9.
This is stage 1 of Lozza's transformation. Stage 2 will be to auto-generate the Javascript from the C source, so there is one definitive source in C.
Author - Colin Jenkins Rating Chess Engines Diary CEDR=2847
Lozza 5.18 JA vs other engines:
| Bread 1.2.0 | 5.5/6 | +5 | 6 Games |
| Fatalii 0.8.0 | 4/4 | +4 | 4 Games |
| Nectar 0.2.2 | 4/4 | +4 | 4 Games |
| Eubos 3.8.1 | 3.5/4 | +3 | 4 Games |
| Turbulence v4 0.0.4 | 3.5/4 | +3 | 4 Games |
| Dog 2.6c | 3/4 | +2 | 4 Games |
| Toad 3.0.0 JA | 3/4 | +2 | 4 Games |
| Aurora 20241007 | 2.5/4 | +1 | 4 Games |
| Pingu 5.0.0 | 2.5/4 | +1 | 4 Games |
| Schoenemann 0.4.0 | 1/4 | -2 | 4 Games |
| Critter 1.6a | 0.5/4 | -3 | 4 Games |
| Clarity 7.2.0 JA | 0.5/4 | -3 | 4 Games |
| Quanticade Chimera 1.2 | 0.5/4 | -3 | 4 Games |
| Texel 1.12 | 0.5/4 | -3 | 4 Games |
| Lizard 11.2 | 0/4 | -4 | 4 Games |
| Horsie 1.0 | 0/4 | -4 | 4 Games |
| Equisetum 1.15 JA | 0/4 | -4 | 4 Games |
| Rustic Knight 1.0.0 | 2/2 | +2 | 2 Games |
| Toad 3.0.0 | 2/2 | +2 | 2 Games |
| Stellar 1.4.0 | 2/2 | +2 | 2 Games |
| Freda 1.0 | 2/2 | +2 | 2 Games |
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