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stockfish of the neural network

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Author: xoto10
Date: Sun May 15 20:20:37 2022 +0200
Timestamp: 1652638837

Tune scale and optimism.

Tune scale and optimism in effort to make stockfish play more aggressively.

STC @ 10+0.1 th 1:
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 27896 W: 7506 L: 7248 D: 13142 Elo +3.21
Ptnml(0-2): 103, 3047, 7388, 3309, 101
https://tests.stockfishchess.org/tests/live_elo/627fd0cfab44257388ab1f13

LTC @ 60+0.6 th 1:
LLR: 2.93 (-2.94,2.94) <0.50,3.00>
Total: 65576 W: 17512 L: 17178 D: 30886 Elo +1.77
Ptnml(0-2): 37, 6397, 19587, 6729, 38
https://tests.stockfishchess.org/tests/live_elo/627ff666ab44257388ab256d

closes https://github.com/official-stockfish/Stockfish/pull/4025

Bench 6407734

https://abrok.eu/stockfish/

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He is compiling the engine without an embedded net.  I do the same thing.

First, download the engine from his pixeldrain link and unzip the file: https://pixeldrain.com/u/h2s7HzYQ

Second, download the net: https://tests.stockfishchess.org/api/nn/nn-3c0aa92af1da.nnue

Third: take the net and place it in the folder where your downloaded engine resides.  razz

stockfish of the neural network - Page 20 Image_12

Not useless. Thank you, Alex. . .

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404 Not Found

descriptionstockfish of the neural network - Page 20 EmptyRe: stockfish of the neural network

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Author: candirufish
Date: Sat May 21 12:42:33 2022 +0200
Timestamp: 1653129753

Simplify a condition

Principal variation depth late move reduction extension simplification.

stc:
https://tests.stockfishchess.org/tests/view/6285a1d19d18a78568e7fa24
LLR: 2.94 (-2.94,2.94) <-2.25,0.25>
Total: 428536 W: 113433 L: 113851 D: 201252 Elo -0.34
Ptnml(0-2): 1671, 48606, 114090, 48272, 1629

ltc:
https://tests.stockfishchess.org/tests/view/62871d20375cdc5de8cf5db3
LLR: 2.95 (-2.94,2.94) <-2.25,0.25>
Total: 56792 W: 15123 L: 15011 D: 26658 Elo +0.69
Ptnml(0-2): 42, 5681, 16825, 5819, 29

closes https://github.com/official-stockfish/Stockfish/pull/4028

bench: 6501437

https://abrok.eu/stockfish/

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Author: Giacomo Lorenzetti
Date: Sun May 29 18:54:19 2022 +0200
Timestamp: 1653843259

Small speedup in futility_move_count

The speedup is around 0.25% using gcc 11.3.1 (bmi2, nnue bench, depth 16
and 23) while it is neutral using clang (same conditions).

According to `perf` that integer division was one of the most time-consuming
instructions in search (gcc disassembly).

Passed STC:
https://tests.stockfishchess.org/tests/view/628a17fe24a074e5cd59b3aa
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 22232 W: 5992 L: 5751 D: 10489 Elo +3.77
Ptnml(0-2): 88, 2235, 6218, 2498, 77

yellow LTC:
https://tests.stockfishchess.org/tests/view/628a35d7ccae0450e35106f7
LLR: -2.95 (-2.94,2.94) <0.50,3.00>
Total: 320168 W: 85853 L: 85326 D: 148989 Elo +0.57
Ptnml(0-2): 185, 29698, 99821, 30165, 215

This patch also suggests that UHO STC is sensible to small speedups (< 0.50%).

closes https://github.com/official-stockfish/Stockfish/pull/4032

No functional change

https://abrok.eu/stockfish/

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Author: xoto10
Date: Sun May 29 19:14:20 2022 +0200
Timestamp: 1653844460

Adjust scale param higher

xoto10's scaleopt tune resulted in a yellow LTC, but the main parameter shift looked almost exactly like the tune rate reduction schedule,
so further increases of that param were tried. Joint work xoto10 and dubslow.

passed LTC:
https://tests.stockfishchess.org/tests/view/628c709372775f382300f03e
LLR: 2.93 (-2.94,2.94) <0.50,3.00>
Total: 70112 W: 18932 L: 18584 D: 32596 Elo +1.72
Ptnml(0-2): 66, 6904, 20757, 7274, 55

failed STC:
https://tests.stockfishchess.org/tests/view/6290e4441e7cd5f29966bdc8
LLR: -2.96 (-2.94,2.94) <0.00,2.50>
Total: 59976 W: 15919 L: 16018 D: 28039 Elo -0.57
Ptnml(0-2): 250, 6791, 15974, 6754, 219

similar LTC's were yellow
first yellow LTC: https://tests.stockfishchess.org/tests/view/6288a33f817227d3e5c5b05d
double exaggerate yellow: https://tests.stockfishchess.org/tests/live_elo/628e140372775f38230129a6
triple exaggerate yellow: https://tests.stockfishchess.org/tests/live_elo/628e2caf72775f3823012d45

closes https://github.com/official-stockfish/Stockfish/pull/4036

bench 6410652

----------------------------------------

Author: proukornew
Date: Sun May 29 19:04:25 2022 +0200
Timestamp: 1653843865

Improve handling of variables set in the make environment

removes duplication on the commandline for example in a profile-build

closes https://github.com/official-stockfish/Stockfish/pull/3859

No functional change

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 20 EmptyRe: stockfish of the neural network

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Author: xoto10
Date: Sun May 29 19:14:20 2022 +0200
Timestamp: 1653844460

Adjust scale param higher

xoto10's scaleopt tune resulted in a yellow LTC, but the main parameter shift looked almost exactly like the tune rate reduction schedule,
so further increases of that param were tried. Joint work xoto10 and dubslow.

passed LTC:
https://tests.stockfishchess.org/tests/view/628c709372775f382300f03e
LLR: 2.93 (-2.94,2.94) <0.50,3.00>
Total: 70112 W: 18932 L: 18584 D: 32596 Elo +1.72
Ptnml(0-2): 66, 6904, 20757, 7274, 55

failed STC:
https://tests.stockfishchess.org/tests/view/6290e4441e7cd5f29966bdc8
LLR: -2.96 (-2.94,2.94) <0.00,2.50>
Total: 59976 W: 15919 L: 16018 D: 28039 Elo -0.57
Ptnml(0-2): 250, 6791, 15974, 6754, 219

similar LTC's were yellow
first yellow LTC: https://tests.stockfishchess.org/tests/view/6288a33f817227d3e5c5b05d
double exaggerate yellow: https://tests.stockfishchess.org/tests/live_elo/628e140372775f38230129a6
triple exaggerate yellow: https://tests.stockfishchess.org/tests/live_elo/628e2caf72775f3823012d45

closes https://github.com/official-stockfish/Stockfish/pull/4036

bench 6410652

https://abrok.eu/stockfish/

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(oh my apologies Lisandr, I didn't see that you had already posted it.)

Sorry for the duplicate everyone.

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Things happen

descriptionstockfish of the neural network - Page 20 EmptyRe: stockfish of the neural network

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Author: candirufish
Date: Thu Jun 2 07:44:22 2022 +0200
Timestamp: 1654148662

cutnode and movecount lmr extension simplification

Passed STC
https://tests.stockfishchess.org/tests/view/6294133cb0d5a7d1b780ece3
LLR: 2.94 (-2.94,2.94) <-2.25,0.25>
Total: 41072 W: 11052 L: 10908 D: 19112 Elo +1.22
Ptnml(0-2): 153, 4324, 11461, 4422, 176

Passed LTC
ltc: https://tests.stockfishchess.org/tests/view/62947ae6b0d5a7d1b780fe86
LLR: 2.94 (-2.94,2.94) <-2.25,0.25>
Total: 102736 W: 27509 L: 27459 D: 47768 Elo +0.17
Ptnml(0-2): 98, 9734, 31669, 9754, 113

closes https://github.com/official-stockfish/Stockfish/pull/4045

Bench: 6410652

https://abrok.eu/stockfish/

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Author: Dubslow
Date: Thu Jun 2 07:49:31 2022 +0200
Timestamp: 1654148971

Remove LMR condition for complex pos

Inspired by Kia's similar test: https://tests.stockfishchess.org/tests/view/6292898c1e7cd5f29966fbe0

Passed STC:
https://tests.stockfishchess.org/tests/view/62941588b0d5a7d1b780ed4b
LLR: 2.94 (-2.94,2.94) <-2.25,0.25>
Total: 266872 W: 70850 L: 71033 D: 124989 Elo -0.24
Ptnml(0-2): 1180, 30114, 70941, 30111, 1090

Passed LTC:
https://tests.stockfishchess.org/tests/view/62964a754628d33daa24f062
LLR: 2.95 (-2.94,2.94) <-2.25,0.25>
Total: 70160 W: 18756 L: 18662 D: 32742 Elo +0.47
Ptnml(0-2): 42, 6976, 20950, 7070, 42

closes https://github.com/official-stockfish/Stockfish/pull/4047

Bench 6237567

https://abrok.eu/stockfish/

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SF-PB-020622_x64 (and couple of native compilations for AMD Ryzen 7 cpu).
Author: xoto10
Date: Thu Jun 2 07:47:23 2022 +0200
Timestamp: 1654148843

Blend nnue complexity with classical.


Engines https://pixeldrain.com/u/LibY7G1F

Network https://tests.stockfishchess.org/api/nn/nn-3c0aa92af1da.nnue

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The Stockfish 220529 rating list and regression testing runs have been completed:

https://www.sp-cc.de/

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Author: candirufish
Date: Tue Jun 7 08:34:14 2022 +0200
Timestamp: 1654583654

Use qsearch on step 11 if depth is equal to or below 0

larger reduction of depth if no TT entry is found, and go in qsearch as needed.

stc:
https://tests.stockfishchess.org/tests/view/629dfacd593a4a9b6482db72
LLR: 2.93 (-2.94,2.94) <0.00,2.50>
Total: 31920 W: 8591 L: 8322 D: 15007 Elo +2.93
Ptnml(0-2): 127, 3551, 8376, 3738, 168

ltc:
https://tests.stockfishchess.org/tests/view/629e304e593a4a9b6482e451
LLR: 2.95 (-2.94,2.94) <0.50,3.00>
Total: 17488 W: 4842 L: 4614 D: 8032 Elo +4.53
Ptnml(0-2): 13, 1670, 5151, 1896, 14

closes https://github.com/official-stockfish/Stockfish/pull/4056

Bench: 5870283

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SF-PB-070622_x64
Author: candirufish
Date: Tue Jun 7 08:34:14 2022 +0200
Timestamp: 1654583654

Use qsearch on step 11 if depth is equal to or below 0

larger reduction of depth if no TT entry is found, and go in qsearch as needed.

Engines https://pixeldrain.com/u/MeuLUZwM

Network https://tests.stockfishchess.org/api/nn/nn-3c0aa92af1da.nnue

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1007 run is a network trained in DFRC positions (one side plays one Fischer arrangement, the other plays the other).
Who wants to win in advance in randomness - download right now.
In standard chess, these networks are about 50 elo weaker.
Testing is carried out on FRC 3 moves - 3 moves according to the book from symmetric Fischer.
In theory, for ASFC, etc., these networks will be even stronger, because they are actually trained on them, FRC is not really their profile, although it is much better than the master anyway

https://pixeldrain.com/u/qssgMz6J

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Author: bmc4
Date: Thu Jun 16 07:12:01 2022


Author: mstembera
Date: Thu Jun 16 07:06:43 2022


Author: ppigazzini
Date: Thu Jun 16 07:03:52 2022

https://abrok.eu/stockfish/

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Author: Dubslow
Date: Mon Jun 20 08:25:50 2022


Author: bmc4
Date: Mon Jun 20 08:24:07 2022

https://abrok.eu/stockfish/

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Author: Dubslow
Date: Mon Jun 20 08:30:57 2022 +0200
Timestamp: 1655706657

Use NNUE complexity in search, retune related parameters

This builds on ideas of xoto10 and mstembera to use more output from NNUE in the search algorithm.

passed STC:
https://tests.stockfishchess.org/tests/view/62ae454fe7ee5525ef88a957
LLR: 2.95 (-2.94,2.94) <0.00,2.50>
Total: 89208 W: 24127 L: 23753 D: 41328 Elo +1.46
Ptnml(0-2): 400, 9886, 23642, 10292, 384

passed LTC:
https://tests.stockfishchess.org/tests/view/62acc6ddd89eb6cf1e0750a1
LLR: 2.93 (-2.94,2.94) <0.50,3.00>
Total: 56352 W: 15430 L: 15115 D: 25807 Elo +1.94
Ptnml(0-2): 44, 5501, 16782, 5794, 55

closes https://github.com/official-stockfish/Stockfish/pull/4088

bench 5332964

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Pls Create SF-PB latest thumb up

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Lc0 Net Progress using AlphaZero and Stockfish 9 test conditions x100 games. = Stockfish 9 Classical vs Lc0 T10 - 11248 'LIVE' @ https://www.twitch.tv/vendablebee420

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