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nocturn9x released this
2025-09-25 18:11:43 +02:00 | 56 commits to master since this releaseNothing to see here, move along
Greetings! This release exists mostly to address a nasty bug caused by incorrect score clamping that would make heimdall find non-existent M127 lines in positions with a very high evaluation
What changed
- The aforementioned bug has been fixed
- All of heimdall's parameters were tuned to account for the addition of correction history
- The TT score is used in place of the static eval in RFP when possible
Strength
Nothing particularly interesting here, I'm just adding this section for completeness
UHO_Lichess_4852_v1.epd
STC:
Elo | 4.34 +- 7.76 (95%) Conf | 40.0+0.40s Threads=1 Hash=64MB Games | N: 2002 W: 453 L: 428 D: 1121 Penta | [4, 229, 512, 250, 6]https://kelseyde.pythonanywhere.com/test/1688/
LTC:
Elo | 1.56 +- 5.48 (95%) Conf | 40.0+0.40s Threads=1 Hash=64MB Games | N: 2002 W: 160 L: 151 D: 1691 Penta | [0, 123, 748, 128, 2]https://kelseyde.pythonanywhere.com/test/1693/
No 8moves_v3 testing this release: the gains are already insignificant enough with an UHO book so I'm not going to waste additional compute on balanced book testing for it to tell me the elo change is near-zero.
Also, we purple now boy! As of version 1.4.1, Heimdall has officially broken the 3600 Elo barrier in the CCRL Blitz list. Exciting!
See you for 1.5!
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