Raphael is a hobby project that is still a work in progress, but it will be updated as time goes by. It is nowhere near as competitive as some of the other chess engines out there, but it is strong enough to beat most humans with ease.
Author: Rei Meguro
Raphael 4.2.0 pre-release - what's new?
- feat: prefetch tt weights (#147)
- Elo | 1.93 +- 1.55 (95%)
- SPRT | 4.0+0.04s Threads=1 Hash=16MB
- LLR | 2.98 (-2.25, 2.89) [0.00, 4.00]
- Games | N: 46144 W: 11245 L: 10989 D: 23910
- Penta | [134, 4836, 12870, 5104, 128]
- https://rmeguro.pythonanywhere.com/test/598/
- bench: 10025875
Raphael 3.0.0 JA vs other engines:
| Rusty-rival 1.0.30 rc3 | 4/4 | +4 | 4 games |
| FrankyCPP 1.2 | 4/4 | +4 | 4 games |
| Human Chess Engine 0.1 JA | 4/4 | +4 | 4 games |
| Anodos 1.2.0 | 4/4 | +4 | 4 games |
| Critter 1.6a | 3.5/4 | +3 | 4 games |
| Chessnix 1.3 | 1.5/4 | -1 | 4 games |
| Kociolek 2.1 JA | 1.5/4 | -1 | 4 games |
| PZChessBot 6.1 | 1/4 | -2 | 4 games |
| Caligula 6.0 | 1/4 | -2 | 4 games |
| Bagatur 5.4 | 1/4 | -2 | 4 games |
| Minke 5.0.0 | 0.5/4 | -3 | 4 games |
| Odonata 1.1.0 | 0.5/4 | -3 | 4 games |
| Zangdar 6.1 | 0.5/4 | -3 | 4 games |
| Sturddle 2.5.0 | 0.5/4 | -3 | 4 games |
| Stockfish 18 JA | 0/4 | -4 | 4 games |
| DON dev-20260215 | 0/4 | -4 | 4 games |
| Tarnished 5.0 | 0/4 | -4 | 4 games |
| Halogen 16.0.0 | 0/4 | -4 | 4 games |
| HypnoS EN 1.0 | 0/4 | -4 | 4 games |
| VietCoffee 1.0.8 JA | 3/3 | +3 | 3 games |
| Vajra 2.0 | 3/3 | +3 | 3 games |
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