Pawnocchio - UCI chess engine
Author: Jonathan Hallstrom Rating Chess Engines Diary CEDR=3661
Author: Jonathan Hallstrom Rating Chess Engines Diary CEDR=3661
Pawnocchio 1.9.0 what's new?
New net trained with a portion of data from Vine, and lots of search changes.
Progtests pending but roughly +55 STC, +70LTC, +80 STC 4t, +95 LTC 4t
We welcome the release of Pawnocchio 1.9 with great interest. For context, the previous version, Pawnocchio 1.8.1, achieved a CEDR rating of 3661.2, while Pawnocchio 1.8 reached 3646.3. We are starting our testing of version 1.9 today—we look forward to seeing how much progress the engine has made.
v: 1.9.1
Fixes two bugs, one that broke fastchess compatibility on windows, and one rare crash.
No strength change.
Pawnocchio 1.8.1 vs other engines:
| Astra 6.1.1 | 30/62 | -2 | 62 games |
| Caissa 1.23 | 14.5/36 | -7 | 36 games |
| Critter 1.6a | 33/34 | +32 | 34 games |
| YuliGM Pro 20 | 13.5/34 | -7 | 34 games |
| Artemis 17.3TR sl | 10.5/30 | -9 | 30 games |
| ShashChess 39 | 10.5/29 | -8 | 29 games |
| Fire 10 mingw | 18.5/28 | +9 | 28 games |
| Stockfish 17.1 | 8/27 | -11 | 27 games |
| Laser 1.8 beta JA | 23.5/26 | +21 | 26 games |
| HypnoS ++ 1.03 | 10/24 | -4 | 24 games |
| SF-POLY 200825 | 9/24 | -6 | 24 games |
| Potential 2.0.0 JA | 23/23 | +23 | 23 games |
| Alexandria 8.1.2 | 7.5/23 | -8 | 23 games |
| Patricia 5.0 | 17.5/22 | +13 | 22 games |
| Frozenight 7.0.0 JA | 18.5/20 | +17 | 20 games |
| SF-PRO2 02.05.2025 | 8.5/20 | -3 | 20 games |
| Tactical Titan v2 | 7.5/20 | -5 | 20 games |
| Stockfish dev-20250724 | 8/19 | -3 | 19 games |
| Alexander 6.0 | 16/16 | +16 | 16 games |
| Stash 37.10 JA | 14.5/16 | +13 | 16 games |
| MrBob 1.3.0 JA | 14/16 | +12 | 16 games |
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