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nocturn9x released this
2026-09-21 23:56:40 +02:00 | 4 commits to master since this releaseI guess I'm top 20?
Ahoy! Hasn't been too long since the release of 1.5 eh? Well, as it turns out from some (fairly limited) testing, it appears my boy actually has a shot at the top 20 now, so I'm releasing this version to see where it ends up in rating lists (please rate me pohl-sama). Also, threat inputs! Much elo, such NNUE tech.
What changed
A lot of nitty-gritty performance stuff found by GPT 6 Astra (thanks OpenAI!), a shiny new threat inputs network (many many thanks to @swedishchef for helping me with that!) and a lot of other minor things. Can't really be arsed to write a changelog, nobody reads those anyway. Just read the commits if you're interested!
One important note is that heimdall now releases with universal binaries! I won't claim to have the brains to understand most of the logic that goes into that (I shamelessly vibecoded that part, deal with it), but it should simplify testing quite a bit. See here for details!
Strength
UHO_Lichess_4852_v1.epd
STC
Name | 1.5.1 Elo | 36.18 +- 9.32 (95%) Conf | 8.0+0.08s Threads=1 Hash=16MB Games | N: 2014 / 2000 W: 656 L: 447 D: 911 Penta | [16, 196, 400, 353, 42]https://chess.n9x.co/test/8482/
LTC
Name | 1.5.1 Elo | 32.76 +- 8.00 (95%) Conf | 40.0+0.40s Threads=1 Hash=64MB Games | N: 2000 / 2000 W: 585 L: 397 D: 1018 Penta | [3, 171, 474, 339, 13]https://chess.n9x.co/test/8484/
8moves_v3.epd
STC
Name | 1.5.1 Elo | 28.61 +- 7.58 (95%) Conf | 8.0+0.08s Threads=1 Hash=16MB Games | N: 2008 / 2000 W: 373 L: 208 D: 1427 Penta | [7, 124, 601, 241, 31]https://chess.n9x.co/test/8490/
LTC
Name | 1.5.1 Elo | 12.66 +- 5.51 (95%) Conf | 40.0+0.40s Threads=1 Hash=64MB Games | N: 2004 / 2000 W: 208 L: 135 D: 1661 Penta | [2, 89, 747, 162, 2]https://chess.n9x.co/test/8489/
A lot more stuff is coming soon™️ (mostly net improvements), stay tuned :)
P.S.: 8moves testing is currently in progress, but I wanted to get the release out tonight!
Downloads