Chess engine: Eggnog 6 dev-1cc JA (Windows and Linux)
Eggnog - UCI chess engine, Author: Levi Gibson
Rating Chess Engines Diary CEDR=2650
NNUE
eggnog-chess-engine uses a strage but functional type of NNUE.
As of May 11, 2025, eggnog-chess-engine is using a small network with a split accumulator. Instead of using HalfKp, the network feeds the positions of the pieces into the network as a sparse array with a size of 784 (12*64). This is then duplicated for the black perspective and fed through the accumulator (128 neurons per side). The two accumulators are then combined into 1 layer with the size of 256, and then it's a simple 16x1 to finish.
Jim Ablett compiles:
Eggnog 5.0 vs other engines:
| RapChess 2022-10-17 | 4/4 | +4 | 4 Games |
| BlackCore 2.0 | 0/4 | -4 | 4 Games |
| Lynx 0.12.0 | 2/2 | +2 | 2 Games |
| Fatalii 0.3.1 | 2/2 | +2 | 2 Games |
| QuintBot 1.0.0 | 1.5/2 | +1 | 2 Games |
| Altair 1.0.0 | 1/2 | +0 | 2 Games |
| Jackychess 0.13.1 | 0.5/2 | -1 | 2 Games |
| Trinket 3.0.0 | 0.5/2 | -1 | 2 Games |
| Seer 2.6.0 | 0/2 | -2 | 2 Games |
| Francesca 0.32 | 0/2 | -2 | 2 Games |
| Prophet 4.3 | 0/2 | -2 | 2 Games |
| AI 27.0 | 0/2 | -2 | 2 Games |
| Caissa 1.1 | 0/2 | -2 | 2 Games |
| Deep Shredder 13 | 0/2 | -2 | 2 Games |
| Eman 8.40 | 0/2 | -2 | 2 Games |
| Marvin 6.1.0 | 0/2 | -2 | 2 Games |
| YuliGM PrO 4.0 | 0/2 | -2 | 2 Games |
| Fire-zero 1072022 | 0/2 | -2 | 2 Games |
| Vafra 12.2 Cfish | 0/2 | -2 | 2 Games |
| Viridithas 3.0.0 | 0/2 | -2 | 2 Games |
| ShashChess 25.1 | 0/2 | -2 | 2 Games |
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