Thanks dear Homayoun
Author: Muzhen Gaming
Date: Fri Mar 22 16:44:06 2024 +0100
Timestamp: 1711122246
VVLTC search tune
This set of parameters was derived from 3 tuning attempts:
tests.stockfishchess.org/tests/view/65d19ab61d8e83c78bfd8436 (80+0.8 x8, ~40k games)
Then tuned with one of linrock's early L1-3072 nets:
tests.stockfishchess.org/tests/view/65def7b04b19edc854ebdec8 (VVLTC, ~36k games)
Starting from the result of this tuning, the parameters were then tuned with the current master net:
tests.stockfishchess.org/tests/view/65f11c420ec64f0526c46fc4 (VVLTC, ~45k games)
Additionally, at the start of the third tuning phase, 2 parameters were manually changed:
Notably, the triple extension margin was decreased from 78 to 22. This idea was given by Vizvezdenec:
https://tests.stockfishchess.org/tests/ ... 0526c46752.
The PvNode extension margin was also adjusted from 50 to 40.
This tune also differs from previous tuning attempts by tuning the evaluation thresholds for smallnet and psqt-only.
The former was increased through the tuning, and this is hypothesized to scale better at VVLTC,
although there is not much evidence of it.
Passed VVLTC 1st sprt: tests.stockfishchess.org/tests/view/65f6761d0ec64f0526c4be88
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 44688 W: 11421 L: 11140 D: 22127 Elo +2.18
Ptnml(0-2): 1, 4170, 13722, 4449, 2
Passed VVLTC 2nd sprt: tests.stockfishchess.org/tests/view/65fa31a30ec64f0526c4f611
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 27450 W: 7057 L: 6778 D: 13615 Elo +3.53
Ptnml(0-2): 4, 2545, 8346, 2828, 2
STC Elo estimate:
https://tests.stockfishchess.org/tests/ ... 0526c521ae
Elo: -7.84 ± 1.8 (95%) LOS: 0.0%
Total: 40000 W: 9899 L: 10802 D: 19299 Elo -7.84
Ptnml(0-2): 203, 5221, 10025, 4378, 173
nElo: -14.91 ± 3.4 (95%) PairsRatio: 0.84
closes
https://github.com/official-stockfish/S ... /pull/5130
Bench: 1876107
see source:
https://github.com/official-stockfish/S ... f7c29444d4