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Double extensions #251

Merged
merged 6 commits into from
Jul 7, 2024
Merged

Double extensions #251

merged 6 commits into from
Jul 7, 2024

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sroelants
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Elo   | 11.86 +- 6.68 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=16MB
LLR   | 3.01 (-2.94, 2.94) [0.00, 5.00]
Games | N: 4982 W: 1529 L: 1359 D: 2094
Penta | [139, 530, 1009, 648, 165]
https://chess.samroelants.com/test/126/

bench 8394692

bench 8099941
A little confused why bench doesn't change when the double extension
limit is >= 4. No difference between 4 max double extensions and 20. At
least for bench. Is it really possible that, in the entire bench, we
_never_ get more than 4/5 double extensions? Seems so unlikely...

bench 8099941
bench 8394692
bench 8394692
Not quite the 20 elo some other people are getting, but I'll take it.
An SPSA will probably optimize this a little further

```
Elo   | 11.86 +- 6.68 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=16MB
LLR   | 3.01 (-2.94, 2.94) [0.00, 5.00]
Games | N: 4982 W: 1529 L: 1359 D: 2094
Penta | [139, 530, 1009, 648, 165]
https://chess.samroelants.com/test/126/
```
@sroelants sroelants merged commit e1bde8a into main Jul 7, 2024
2 checks passed
@sroelants sroelants deleted the search/double-extensions branch July 7, 2024 11:15
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