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Halogen 16 - new version chess engine

on



Halogen - UCI chess engine. The engine is constantly being developed by the author, and the latest stable version has risen to 15th place in the CEDR rankings. We will be testing this version soon.
Author: Kieren Pearson  Rating Chess Engines Diary CEDR=3682

Halogen 16. what's new?

Elo gain compared to Halogen 15:

SMP LTC:

Elo   | 89.85 +- 10.37 (95%)
Conf  | 20.0+0.20s Threads=8 Hash=256MB
Games | N: 1000 W: 365 L: 112 D: 523
Penta | [0, 32, 188, 275, 5]
http://localhost:8000/test/100/

SMP STC:

Elo   | 82.91 +- 5.35 (95%)
Conf  | 5.0+0.05s Threads=8 Hash=64MB
Games | N: 4338 W: 1640 L: 624 D: 2074
Penta | [8, 159, 873, 1067, 62]
http://localhost:8000/test/99/

LTC:

Elo   | 58.57 +- 4.91 (95%)
Conf  | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 5012 W: 1654 L: 817 D: 2541
Penta | [7, 273, 1144, 1040, 42]
http://localhost:8000/test/98/

STC:

Elo   | 57.16 +- 5.42 (95%)
Conf  | 8.0+0.08s Threads=1 Hash=8MB
Games | N: 5066 W: 1748 L: 922 D: 2396
Penta | [22, 318, 1107, 984, 102]
http://localhost:8000/test/97/

Elo gaining patches:

Which binary to choose?

Below are prebuild binaries for Windows, Linux, and MacOS platforms, for a variety of CPU architectures. Please select the most modern target for your architecture.

Targetx86 Intel CPUx86 AMD CPUARM CPU
LegacyAny 64 bitAny 64 bitN/A
SSE4Nehalem (2008)Bulldozer (2011)N/A
AVXSandy Bridge (2011)Piledriver (2012)N/A
AVX2Haswell (2013)Excavator (2015)N/A
AVX2 PEXTHaswell (2013)Zen 3 (2020)N/A
AVX512Skylake (2017)Zen 4 (2022)N/A
AVX512VNNIIce Lake (2019)Zen 5 (2024)N/A
Neon DOTPRODN/AN/AARMv8.2+ (Apple M2+)

Halogen 14 vs other engines:

Fritz 2040.5/99-1899 Games
Uralochka 3.42 dev142.5/4+14 Games
Booot 7.42/4+04 Games
Berserk 202506222/4+04 Games
Astra 6.1.12/4+04 Games
Clarity 8.0.0 JA2/4+04 Games
Titan 1.1.02/4+04 Games
Heimdall 1.4.02/4+04 Games
Starzix 6.1 JA2/4+04 Games
Igel 3.6.3 JA2/4+04 Games
RubiChess 20250606 JA2/4+04 Games
Lizard 11.22/4+04 Games
Motor 0.9.02/4+04 Games
Revenge 4.02/4+04 Games
Pawnocchio 1.82/4+04 Games
Alexandria 8.0.0 JA2/4+04 Games
Viridithas 18.0.0 JA1.5/4-14 Games
Integral 7.0.0 JA1.5/4-14 Games
Horsie 1.1.01.5/4-14 Games
Stormphrax 7.0.0 JA1.5/4-14 Games
Clover 8.2 JA1.5/4-14 Games



All version: https://github.com/KierenP/Halogen/releases/tag/latest

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