Tarnished 5.0 - new version chess engine
Tarnished - UCI chess engine
Author: Anik Patel (Bobingstern)
What has changed in the new version Tarnished 5.0?
"A lone hero fights for his vengeance..."
Very strong NNUE and stronger search!
+116 LTC UHO, estimated ~3700 CCRL Blitz
NNUE
- Now using a (768x16hm->1536)x2->1x8 architecture, trained on ~22b positions
- Dataset relabeled with (768x8hm->4096)x2->(96->192->192->1)x8 network
Search
- Hindsight Extension
- Several Tweaks
- Actually fixed SMP!
Tarnished 2.1 JA - tactical test
Tarnished 2.1 JA was tested against the position shown in the diagram, where the non-obvious move 1.Rg4+ wins.
Tarnished 2.1JA compiled by Jim Ablett and it solved the problem without any problems. Interestingly, the "original" 2.1 compiled failed and after 10 minutes of analysis it proposed 1.Bd5.
Tarnished 4.0 vs other engines:
| Caissa 1.23 | 5/14 | -4 | 14 Games |
| Knightx 4.5 | 10/10 | +10 | 10 Games |
| Belofte 2.1.9 (u) JA | 10/10 | +10 | 10 Games |
| Critter 1.6a | 9.5/10 | +9 | 10 Games |
| Lynx 1.10.0 | 9.5/10 | +9 | 10 Games |
| Pawnocchio 1.8 | 4.5/8 | +1 | 8 Games |
| Titan 1.1.0 | 4/8 | +0 | 8 Games |
| Viridithas 18.0.0 | 4/8 | +0 | 8 Games |
| RubiChess 20250606 JA | 3.5/8 | -1 | 8 Games |
| Motor 0.9.0 | 3.5/8 | -1 | 8 Games |
| Horsie 1.1.0 | 3.5/8 | -1 | 8 Games |
| Obsidian dev-16.14 | 3/8 | -2 | 8 Games |
| PlentyChess 6.0.18 | 3/8 | -2 | 8 Games |
| Clover 9.0 JA | 3/8 | -2 | 8 Games |
| Integral 7.0.0 JA | 2.5/8 | -3 | 8 Games |
| Stormphrax 7.0.0 JA | 2.5/8 | -3 | 8 Games |
| Berserk 20250622 | 2/8 | -4 | 8 Games |
| Belofte 2.1.9 (u) | 6/6 | +6 | 6 Games |
| Senpai 2.0 JA | 6/6 | +6 | 6 Games |
| Chess-3 2.0 JA | 5.5/6 | +5 | 6 Games |
| Eleanor 2.0 | 5/6 | +4 | 6 Games |
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