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Chess engine: Rice 8.0 NNUE

on

Rice - UCI chess engine
Author - Slender  Rating CEDR=3443

v.8.0:
8.0.0 Release
Yes it has been a quite while and I haven't worked on Rice much. However, there's been some search improvements made about 8-9 months ago and recently Rice has got a new net hexadecane_512_v2.net which has new architecture of 16 * 768 -> 512x2 -> 1. Reducing down to 512x2 from previous 768x2 hidden layer, has given quite a speed boost along with the strength from more buckets.

Elo difference should be ~70 elo from previous version, I haven't got time to test it so yeah that's the estimate.

As usual, binaries built for windows are given.
rice-8.0.0-v2.exe for POPCNT, SSE3, SSE4.1, SSE4.2, SSSE3 CPUs.
rice-8.0.0-v3.exe for AVX, AVX2, BMI1, BMI2 CPUs.

The speeds of these binary tested on i7 14700KF are:
rice-8.0.0-v2.exe ~0.95 MNPS
rice-8.0.0-v3.exe ~3.21 MNPS

If you face any bugs, feel free to open an issue and I'll look into it.



Individual statistics: Rice 7.0.0
Marvin 6.2.08/16+016 Games
Akimbo 0.4.011.5/12+1112 Games
Altair 4.0.011.5/12+1112 Games
Knightx 3.811/12+1012 Games
Critter 1.6a10/12+812 Games
Demolito 2023-07-099/12+612 Games
Chess-System-Tal-23/12-612 Games
Seawall 202306299.5/10+910 Games
Princhess 0.12.09/10+810 Games
Wasp 6.505.5/10+110 Games
Rebel 16.24/10-210 Games
Berserk 11.12/10-610 Games
Wahoo 2.0.18/8+88 Games
Peacekeeper 1.607.5/8+78 Games
Polaris 1.8.17/8+68 Games
Cadie 1.57/8+68 Games
Avalanche 1.5.06/8+48 Games
Texel 1.095/8+28 Games
Superultra 1.03/8-28 Games
Caissa 1.102.5/8-38 Games
Stockfish 162/8-48 Games

Rice 7.0.0 - tournament results:
2023.07.10 AmateurEnginesTournament31.5/34+29Rank 1
2023.07.15 AmateurEnginesTournament 41/44+38
2023.07.19 NewAmateurEnginesTournament 21.5/26+17Rank 3
2023.07.27 ArenaMiddleClassEnginesTourn 23/30+16Rank 2
2023.06.29 MiddleClassEnginesTournament 45.5/64+27
3League CEDR.ed.06.2023 25/38+12Rank3
2023.07.15 ArenaNewEnginesTournament 36.5/60+13
2023.08.12 BanksiaNewEnginesTournament 36.5/68+5
2023.10.18 3League CEDR ed.07.2023 41/60+22Rank 2





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