Steinar H. Gunderson
8a6a8e8a42
Merge commit 'b822fdf2f2f00758c794cb61a25a044424d2bc0a' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 19:50:17 +01:00
Steinar H. Gunderson
03732aa685
Merge commit '57e06be71f0177a69843750a9f456462d02f23b9' into cluster
2025-12-25 17:57:11 +01:00
Steinar H. Gunderson
f2643877eb
Merge commit '70bb317afe870c8bc1979ef955f120e4d81f504e' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 17:33:17 +01:00
Steinar H. Gunderson
a5ea0b2b2b
Merge commit 'c2611efe5c317969b583a5ff81352439f905e722' into cluster
2025-12-25 17:32:39 +01:00
Steinar H. Gunderson
110fdc486a
Merge commit '16fee2a7da25c6d0267930eb9677862cb1f009c7' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 17:30:06 +01:00
Steinar H. Gunderson
5d3f71f72d
Merge commit '2ce47573b4d3664dca4cbc4354c8c600540d16ad' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 17:22:27 +01:00
Steinar H. Gunderson
fa1ab27e15
Merge commit 'aff1f67997cd2584ea7c82d967ac7bfd4cc77861' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 16:59:53 +01:00
Steinar H. Gunderson
a5c89f4592
Merge commit '60351b9df901ff5278f208a9cf3a40059ff54832' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 16:56:54 +01:00
Steinar H. Gunderson
a449238954
Merge commit '703f17975bd9c29172a27f795ca6b5a7d0a32b25' into cluster
2025-12-25 16:55:54 +01:00
Steinar H. Gunderson
0043886170
Merge commit 'e57fba7fc9be461cbb97c063b269a1e231cdd284' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 16:54:13 +01:00
Steinar H. Gunderson
1cffdc1ce4
Merge commit '7e72b37e4ce3351399bb0ac08686bd84cdc4fba9' into cluster
2025-12-25 16:03:31 +01:00
Steinar H. Gunderson
a20c6d296a
Merge commit '362a77a3450335e1940020c080bf3b7b361c594a' into cluster
2025-12-25 15:53:03 +01:00
Steinar H. Gunderson
d002e92294
Merge commit 'b209f14b1ee0cda8cbd7fa3a8349e65701d1869f' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 15:48:01 +01:00
Steinar H. Gunderson
d83e63c163
Merge commit '5d3517c601c64d026824251784dd44f0cbf14873' into cluster
2025-12-25 15:30:32 +01:00
Steinar H. Gunderson
d7cf6e22fd
Merge commit '5752529cabb3270e055147709ff0847e4d59ec22' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 15:27:42 +01:00
Steinar H. Gunderson
d1b19aad2f
Merge commit '2cbc20e846e46da8bfc8e254a7703a0bfad3b850' into cluster
2025-12-25 15:26:23 +01:00
Steinar H. Gunderson
8f9e750782
Merge commit '3c379e55d9d92a5704632c6255e72892a4db9a2f' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 15:22:41 +01:00
Steinar H. Gunderson
cefd309d92
Merge commit '25361e514bffb81284d4311601a9f7a4a7ced79b' into cluster
2025-12-25 15:22:02 +01:00
Steinar H. Gunderson
46264c6ed7
Merge commit '74a8fc060465a822f0c047f908d5fb07ebc6ad96' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 15:16:24 +01:00
Steinar H. Gunderson
5c9ed18b48
Merge commit 'b01fdb596a196f966549f7132c042ab67962fbbd' into cluster
2025-12-25 15:16:01 +01:00
Steinar H. Gunderson
7df644a00a
Merge commit '44cddbd962c738678f407a7414efa5b93f0710d9' into cluster
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This is the last commit before there are more conflicts.
2025-12-25 15:10:02 +01:00
Steinar H. Gunderson
876495975e
Merge commit 'c8213ba0d047569141ed58f5eb86579d976b5614' into cluster
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As part of this work, we needed to rename the namespace Stockfish::Cluster
to Stockfish::Distributed, as Cluster is now a type name.
2025-12-25 00:17:08 +01:00
Steinar H. Gunderson
f358a30ea0
Merge commit '7e890fd048e22bfd213d46ec8eb88f7931f0315d' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 16:29:33 +01:00
Steinar H. Gunderson
639294636e
Merge commit '36eb9bc783d35842571d0d4313349b964892d9ca' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 16:26:07 +01:00
Steinar H. Gunderson
784db2cbed
Merge commit 'a2a7edf4c8fa145667135bf1bc7f4f67016f7608' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 16:19:29 +01:00
Steinar H. Gunderson
bc81aa0911
Merge commit 'a169c78b6d3b082068deb49a39aaa1fd75464c7f' into cluster
2025-12-24 16:18:37 +01:00
Steinar H. Gunderson
e56697e3f1
Merge commit 'b0287dcb1c436887075962b596cf2068d2ca9ba8' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 15:23:14 +01:00
Steinar H. Gunderson
125f4f3df0
Merge commit 'ed79745bb9e7207b604c62758ea45dd5c597ed8d' into cluster
2025-12-24 15:22:12 +01:00
Steinar H. Gunderson
ea9a328340
Merge commit 'c14b69790a62aad89fcc471cde482923dfe57f1e' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 15:17:55 +01:00
Steinar H. Gunderson
fb9a3d3323
Merge commit '2dbb44e28d2e5b3c72ddbbd6f436d41f75031a22' into cluster
2025-12-24 15:17:18 +01:00
Steinar H. Gunderson
649004ed47
Merge commit 'db147fe2586527a854516016699949af53dc5b17' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 15:14:23 +01:00
Steinar H. Gunderson
5f5f991780
Merge commit '3502c8ae426506453ca64e87e48d962b327c2356' into cluster
2025-12-24 15:12:37 +01:00
Steinar H. Gunderson
6b6279098d
Merge commit 'd47aa639bd614b37a59f87e6ab68496580f0cf3e' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 15:02:03 +01:00
Steinar H. Gunderson
2a1ed1267e
Merge commit 'd3fc1d835e5144cc98d6a7658fb8cfd9370792f1' into cluster
2025-12-24 14:37:41 +01:00
Steinar H. Gunderson
8e509e240a
Merge commit '432995ad82119070afa0bf720eb65d800bcbf817' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 13:57:03 +01:00
Steinar H. Gunderson
ee41dc5c98
Merge commit '14f6eab07d1d1e1a59372974e5534128676e9440' into cluster
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This is the last commit before there are more conflicts.
2025-12-24 13:51:24 +01:00
Steinar H. Gunderson
f0793a2080
Merge commit '9032c6cbe74ccf7e8963755501e7e6cc473ae471' into cluster
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This is a rather involved merge, since the cluster changes interact
fairly badly with the refactoring we're merging:
The new code wants the search to know nothing at all about the UCI protocol,
it just calls a callback with some worker information (including a Position),
which then transforms that information into a InfoFull which is then sent
through another callback, upon which UCIEngine converts it to UCI and writes
it to stdout.
On the other hand, the MPI information wants to exchange PVs between workers
at this point, and it wants to use the UCI string as the primary medium of
exchange. Position is a lot of work to serialize, so we choose a middle road;
we capture the InfoFull by switching out the callback, serializes it, does the
MPI exchange on that, unserializes it and then continues with the print callback
(if there is new information).
2025-12-24 13:50:14 +01:00
Steinar H. Gunderson
a3cb287405
Merge commit '299707d2c2cbf1694bb21ed4a375b54ef35d719e' into cluster
2025-12-23 16:21:07 +01:00
Shawn Xu and Disservin
b822fdf2f2
Tune histories
...
Passed STC:
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 268736 W: 70080 L: 69421 D: 129235
Ptnml(0-2): 831, 31795, 68460, 32448, 834
https://tests.stockfishchess.org/tests/view/6750778886d5ee47d9540e7c
Passed LTC:
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 505356 W: 129145 L: 127868 D: 248343
Ptnml(0-2): 307, 54901, 140959, 56230, 281
https://tests.stockfishchess.org/tests/view/675367de86d5ee47d9541536
closes https://github.com/official-stockfish/Stockfish/pull/5712
Bench: 1148169
2024-12-22 15:14:22 +01:00
Nonlinear2 and GitHub
cf10644d6e
Fix duplicate code ( #5711 )
...
closes https://github.com/official-stockfish/Stockfish/pull/5711
No functional change
2024-12-08 22:24:29 +01:00
Michael Chaly and Disservin
afaf3a0f2a
Refine statscore for captures
...
Continuation of previous attempts there.
Now instead of using capture history with a static offset also add the
value of the captured piece in the same way at it is used in movepicker.
Passed STC:
https://tests.stockfishchess.org/tests/view/674aa3d386d5ee47d95404aa
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 116480 W: 30433 L: 29999 D: 56048
Ptnml(0-2): 361, 13720, 29662, 14118, 379
Passed LTC:
https://tests.stockfishchess.org/tests/view/674c4b2d86d5ee47d954073f
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 133542 W: 34365 L: 33847 D: 65330
Ptnml(0-2): 78, 14585, 36934, 15089, 85
closes https://github.com/official-stockfish/Stockfish/pull/5706
Bench: 934447
2024-12-08 19:57:59 +01:00
Shawn Xu and Disservin
6a8478c6ad
Simplify Prior Capture Countermove Bonus
...
Passed Non-regression STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 184032 W: 47626 L: 47568 D: 88838
Ptnml(0-2): 590, 21808, 47238, 21714, 666
https://tests.stockfishchess.org/tests/view/67412c7686d5ee47d953f743
Passed Non-regression LTC:
LLR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 169218 W: 43395 L: 43323 D: 82500
Ptnml(0-2): 302, 18567, 46791, 18655, 294
https://tests.stockfishchess.org/tests/view/6743b7e086d5ee47d953f9a6
closes https://github.com/official-stockfish/Stockfish/pull/5701
Bench: 1130692
2024-12-08 19:55:10 +01:00
pb00067 and Disservin
713000c517
Same weight for black and white nonPawnCorrection history
...
Since we don't have color dependent parameters in NNUE eval, it also has
no sense IMO to have color dependent parameters in correction histories.
Ideally a fixed depth search on a single thread should be determistic,
so delivering the same result (move) if we just flip colors on the
board.
Patch replaces 2 parameters (122 and 185) with just one value 154 (= the avg of the two).
Passed STC-non regression
https://tests.stockfishchess.org/tests/view/6740a63286d5ee47d953f656
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 122336 W: 31499 L: 31372 D: 59465
Ptnml(0-2): 336, 14535, 31301, 14658, 338
Passed LTC-non regression
https://tests.stockfishchess.org/tests/view/67419bae86d5ee47d953f7b6
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 101400 W: 25870 L: 25731 D: 49799
Ptnml(0-2): 78, 11109, 28166, 11290, 57
closes https://github.com/official-stockfish/Stockfish/pull/5698
Bench: 1215483
2024-12-08 19:52:16 +01:00
FauziAkram and Disservin
d5a36a3c92
Simplify probCutBeta formula
...
After recent changes to the improving definition, seems like there is no
need anymore to keep opponentWorsening in the probCutBeta formula.
Passed STC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 214272 W: 55566 L: 55541 D: 103165
Ptnml(0-2): 620, 25540, 54817, 25513, 646
https://tests.stockfishchess.org/tests/view/6735243d86d5ee47d953eaea
Passed LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 126708 W: 32329 L: 32216 D: 62163
Ptnml(0-2): 68, 13986, 35123, 14119, 58
https://tests.stockfishchess.org/tests/view/67393cf686d5ee47d953ef99
closes https://github.com/official-stockfish/Stockfish/pull/5697
Bench: 983067
2024-12-08 19:49:01 +01:00
Nonlinear2 and Disservin
da82942b54
Add functions to check for decisive scores
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Thanks to peregrineshahin and robbyrobbyrob for their suggestions.
closes https://github.com/official-stockfish/Stockfish/pull/5696
No functional change
2024-12-08 19:48:49 +01:00
Nonlinear2 and Disservin
57e06be71f
Add functions to check for decisive scores
...
Thanks to peregrineshahin and robbyrobbyrob for their suggestions.
closes https://github.com/official-stockfish/Stockfish/pull/5696
No functional change
2024-12-08 19:47:02 +01:00
Daniel Monroe and Disservin
70bb317afe
Bonus for a prior capture that causes a fail low.
...
This tweak adds a bonus equal to twice the stat_bonus for the current depth for a prior capture that caused a fail high, similar to the prior countermove bonus we currently have.
Passed STC
https://tests.stockfishchess.org/tests/view/673bc14b86d5ee47d953f1f2
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 105824 W: 27538 L: 27118 D: 51168
Ptnml(0-2): 358, 12370, 27024, 12814, 346
Passed LTC
https://tests.stockfishchess.org/tests/view/673ccbff86d5ee47d953f2d9
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 134502 W: 34340 L: 33820 D: 66342
Ptnml(0-2): 102, 14634, 37229, 15214, 72
closes https://github.com/official-stockfish/Stockfish/pull/5695
Bench: 1107054
2024-12-08 19:46:07 +01:00
Daniel Monroe and Disservin
fb6be17ad4
Simplify statscore at captures
...
Simplify statscores for captures, setting them to 0
A recent tweak of Vizvezdenec finds substantial elo gain from giving
captures a separate statscore, which is used mainly for reductions. The
idea is that the old combination of quiet histories was inappropriate
and that a value based on the capture history is more suitable. This
simplification sets the statscore for captures to 0, suggesting that the
elo gain came from rectifying the quiet history/capture mismatch.
Passed STC (against a slightly older version of Viz's patch)
https://tests.stockfishchess.org/tests/view/673ac6e286d5ee47d953f0ec
LR: 2.96 (-2.94,2.94) <-1.75,0.25>
Total: 57312 W: 14872 L: 14672 D: 27768
Ptnml(0-2): 152, 6761, 14649, 6923, 171
Passed LTC (against Viz's newest patch)
https://tests.stockfishchess.org/tests/view/673cd00686d5ee47d953f2db
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 88236 W: 22510 L: 22358 D: 43368
Ptnml(0-2): 70, 9530, 24745, 9724, 49
closes https://github.com/official-stockfish/Stockfish/pull/5691
Bench: 959947
2024-11-22 23:34:15 +01:00
Shawn Xu and Disservin
4fcd78ceb4
Simplify Probcut Bonus
...
Passed STC:
LLR: 2.99 (-2.94,2.94) <-1.75,0.25>
Total: 172288 W: 44656 L: 44580 D: 83052
Ptnml(0-2): 507, 20650, 43782, 20670, 535
https://tests.stockfishchess.org/tests/view/673b74f986d5ee47d953f1a3
Passed LTC:
LLR: 2.94 (-2.94,2.94) <-1.75,0.25>
Total: 94596 W: 24098 L: 23953 D: 46545
Ptnml(0-2): 57, 10322, 26393, 10471, 55
https://tests.stockfishchess.org/tests/view/673d191886d5ee47d953f337
closes https://github.com/official-stockfish/Stockfish/pull/5688
Bench: 1031022
2024-11-22 23:31:34 +01:00
Michael Chaly and Disservin
cd3c13a883
Further tweak statscore for captures
...
Even lower offset.
Passed STC:
https://tests.stockfishchess.org/tests/view/673a66d786d5ee47d953f070
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 63776 W: 16570 L: 16216 D: 30990
Ptnml(0-2): 178, 7371, 16478, 7641, 220
Passed LTC:
https://tests.stockfishchess.org/tests/view/673b2e2a86d5ee47d953f14b
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 156960 W: 39999 L: 39435 D: 77526
Ptnml(0-2): 96, 16965, 43803, 17511, 105
closes https://github.com/official-stockfish/Stockfish/pull/5686
Bench: 867931
2024-11-22 23:29:37 +01:00
Steinar H. Gunderson