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Multi cut pruning correction history - #7012

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official-stockfish:masterfrom
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Multi cut pruning correction history#7012
mstembera wants to merge 1 commit into
official-stockfish:masterfrom
mstembera:MCFPR

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@mstembera

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STC: https://tests.stockfishchess.org/tests/view/6a596dca5529b8472df81060
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 151072 W: 39154 L: 38677 D: 73241
Ptnml(0-2): 372, 17511, 39320, 17934, 399

LTC: https://tests.stockfishchess.org/tests/view/6a6508b6c054e285ae028b5f
LLR: 2.96 (-2.94,2.94) <0.50,2.50>
Total: 109866 W: 28697 L: 28240 D: 52929
Ptnml(0-2): 39, 11353, 31686, 11822, 33

bench: 2148099

As an experiment I pointed some LLMs at other engine github repos to look for ideas to port to SF. Most failed. This one by GPT 5.6 from https://github.com/Yoshie2000/PlentyChess passed. Congrats and credit to PlentyChess!

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github-actions Bot commented Jul 29, 2026

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clang-format 20 needs to be run on this PR.
If you do not have clang-format installed, the maintainer will run it when merging.
For the exact version please see https://packages.ubuntu.com/questing/clang-format-20.
An easier way to install it might be through https://apt.llvm.org/#llvmsh.

(execution 30430073982 / attempt 1)

@anematode

anematode commented Jul 29, 2026

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Could we make him a co-author? Co-Authored-By: Yoshie2000 <patrick.leonhardt@gmx.net>

Also pinged him, as this method of scanning for patches with LLMs has been controversial as of late...

bench: 2148099

Co-Authored-By: Yoshie2000 <patrick.leonhardt@gmx.net>
@mstembera

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@anematode Done.

@Yoshie2000

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Nice to see this, and ty for the coauthor!

I'm excited to see where future SPSAs push the update weights, in PlentyChess multicut has become the main driver of corrhist updates over time.

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3 participants