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stockfish of the neural network

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@brahianrosswill wrote:
Does somebody have 32bit version for the latest versions of SF ?


As for the latest development version, there ain't any 32-bit version..

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Author: Michael Chaly
Date: Sat Nov 27 14:47:46 2021 +0100
Timestamp: 1638020866

Adjust usage of history in futility pruning

This patch refines 0ac8aca893dd2052f8433e0b4a3d65073266b00f that uses history heuristics in futility pruning.
Now it adds main history of the move to in and also increases effect by factor of 2.

passed STC
https://tests.stockfishchess.org/tests/view/61a156829e83391467a2b2c9
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 68464 W: 17920 L: 17587 D: 32957 Elo +1.69
Ptnml(0-2): 239, 7711, 18025, 7992, 265

passed LTC
https://tests.stockfishchess.org/tests/view/61a1bde99e83391467a2b305
LLR: 2.95 (-2.94,2.94) <0.50,3.00>
Total: 26088 W: 6926 L: 6674 D: 12488 Elo +3.36
Ptnml(0-2): 18, 2619, 7531, 2845, 31

closes https://github.com/official-stockfish/Stockfish/pull/3812

bench 6804653

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Michael Chaly
Date: Sun Nov 28 14:25:06 2021

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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SF-PB-281121x64, "Refine futility pruning for parent nodes" https://github.com/official-stockfish/Stockfish/commit/af050e5eed43f2d360bc6d38a9d9ef64b6ce6ad8

https://pixeldrain.com/u/Sc4kELsh

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Author: Joost VandeVondele
Date: Mon Nov 29 12:56:01 2021 +0100
Timestamp: 1638186961

Update default net to nn-4f56ecfca5b7.nnue

New net trained with nnue-pytorch, started from a master net on a data set of Leela
(T60.binpack+T74.binpck) Stockfish data (wrongIsRight_nodes5000pv2.binpack), and
Michael Babigian's conversion of T60 Leela data (including TB7 rescoring) (farseer.binpack)
available as a single interleaved binpack:

https://drive.google.com/file/d/1_sQoWBl31WAxNXma2v45004CIVltytP8/view?usp=sharing

The nnue-pytorch branch used is https://github.com/vondele/nnue-pytorch/tree/wdl

passed STC:
https://tests.stockfishchess.org/tests/view/61a3cc729f0c43dae1c71f1b
LLR: 2.95 (-2.94,2.94) <0.00,2.50>
Total: 49152 W: 12842 L: 12544 D: 23766 Elo +2.11
Ptnml(0-2): 154, 5542, 12904, 5804, 172

passed LTC:
https://tests.stockfishchess.org/tests/view/61a43c6260afd064f2d724f1
LLR: 2.96 (-2.94,2.94) <0.50,3.00>
Total: 25528 W: 6676 L: 6425 D: 12427 Elo +3.42
Ptnml(0-2): 9, 2593, 7315, 2832, 15

closes https://github.com/official-stockfish/Stockfish/pull/3816

Bench: 6885242

https://abrok.eu/stockfish/

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Author: noobpwnftw
Date: Tue Nov 30 20:57:47 2021 +0100
Timestamp: 1638302267
Enable compilation on older Windows systems

https://abrok.eu/stockfish/

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Author: bmc4
Date: Wed Dec 1 18:22:44 2021 +0100
Timestamp: 1638379364
+ 4 more patches

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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Author: Michael Chaly
Date: Fri Dec 3 08:54:46 2021 +0100
Timestamp: 1638518086

Do more aggressive pruning for some node types

This patch allows more aggressive futility/see based pruning for PV nodes with low delta and non-pv nodes.

Fixes some white space issues.

Passed STC
https://tests.stockfishchess.org/tests/view/61a5ed33d16c530b5dcc27cc
LLR: 2.95 (-2.94,2.94) <0.00,2.50>
Total: 182088 W: 47121 L: 46584 D: 88383 Elo +1.02
Ptnml(0-2): 551, 20687, 48037, 21212, 557

Passed LTC
https://tests.stockfishchess.org/tests/view/61a74dfdbd5c4360bcded0ac
LLR: 2.94 (-2.94,2.94) <0.50,3.00>
Total: 87136 W: 22494 L: 22103 D: 42539 Elo +1.56
Ptnml(0-2): 38, 8918, 25272, 9295, 45

closes https://github.com/official-stockfish/Stockfish/pull/3828
closes https://github.com/official-stockfish/Stockfish/pull/3829

bench 4332259

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Author: Joost VandeVondele
Date: Sat Dec 4 10:31:22 2021 +0100
Timestamp: 1638610282

Update default net to nn-cdf1785602d6.nnue

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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Author: Michael Chaly
Date: Mon Dec 6 07:42:04 2021 +0100
Timestamp: 1638772924

Assign extra bonus for previous move that caused a fail low more often

This patch allows to assign extra bonus for previous move that caused a fail low not only for PvNodes and cutNodes but also fo some allNodes - namely if the best result we could've got from the search is still far below alpha.

passed STC
https://tests.stockfishchess.org/tests/view/61aa26a49e8855bba1a36d96
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 73808 W: 19183 L: 18842 D: 35783 Elo +1.61
Ptnml(0-2): 251, 8257, 19564, 8564, 268

passed LTC
https://tests.stockfishchess.org/tests/view/61aa7dc29e8855bba1a3814f
LLR: 2.94 (-2.94,2.94) <0.50,3.00>
Total: 142416 W: 36717 L: 36192 D: 69507 Elo +1.28
Ptnml(0-2): 106, 14799, 40862, 15346, 95

closes https://github.com/official-stockfish/Stockfish/pull/3835

bench 4724181

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Author: Joost VandeVondele
Date: Tue Dec 7 12:40:48 2021 +0100
Timestamp: 1638877248

Update default net to nn-63376713ba63.nnue.

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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guys, I'm leaving. I fell in love, or rather disillusioned once again in love. Love is beautiful only when it is mutual. Thanks to all those who help other people. Be human and everything will be fine with you ...

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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@lisandr wrote:
guys, I'm leaving. I fell in love, or rather disillusioned once again in love. Love is beautiful only when it is mutual. Thanks to all those who help other people. Be human and everything will be fine with you ...


where r u going Lisandr ? u r one of the best in here :) i can not imagine this site without u :) i wish if u stay :)

wish u a good life and good luck

i myself appreciate all ur job in here and thanx for everything u have done :)

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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Thank you friend, that's valuable

descriptionstockfish of the neural network - Page 15 Emptyhttps://abrok.eu/stockfish/

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Author: Stefan Geschwentner
Date: Sat Dec 11 15:56:38 2021 +0100
Timestamp: 1639234598

Simplify falling eval time factor.

Remove the difference to previous best score in falling eval calculation. As compensation double the effect of the difference to previous best average score.

STC:
LLR: 2.95 (-2.94,2.94) <-2.25,0.25>
Total: 86944 W: 22363 L: 22285 D: 42296 Elo +0.31
Ptnml(0-2): 273, 9227, 24396, 9301, 275
https://tests.stockfishchess.org/tests/view/61b111ce06b4c2dcb1b11546

LTC:
LLR: 2.96 (-2.94,2.94) <-2.25,0.25>
Total: 134944 W: 34606 L: 34596 D: 65742 Elo +0.03
Ptnml(0-2): 66, 12941, 41456, 12935, 74
https://tests.stockfishchess.org/tests/view/61b19ca206b4c2dcb1b13a8b

closes https://github.com/official-stockfish/Stockfish/pull/3841

Bench: 4729473

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Yes
Dont go lisandr
We all need you here with all your help...

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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From ChessMan.
Stockfish_PB 101221 x32-x64
with support for Polyglot Books (.bin)

Author: Michael Chaly
Date: Thu Dec 9 20:50:00 2021 +0100
Timestamp: 1639079400

Adjust singular extension depth restriction


bench 4729473

Download: https://pixeldrain.com/u/YDZuf5c4

descriptionstockfish of the neural network - Page 15 Emptyhttps://abrok.eu/stockfish/

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Author: Joost VandeVondele
Date: Mon Dec 13 07:17:25 2021 +0100
Timestamp: 1639376245

Update default net to nn-d93927199b3d.nnue

Using the same dataset as before but slightly reduced initial LR as in
https://github.com/vondele/nnue-pytorch/tree/tweakLR1

passed STC:
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 51368 W: 13492 L: 13191 D: 24685 Elo +2.04
Ptnml(0-2): 168, 5767, 13526, 6042, 181
https://tests.stockfishchess.org/tests/view/61b61f43dffbe89a3580b529

passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,3.00>
Total: 45128 W: 11763 L: 11469 D: 21896 Elo +2.26
Ptnml(0-2): 24, 4583, 13063, 4863, 31
https://tests.stockfishchess.org/tests/view/61b6612edffbe89a3580c447

closes https://github.com/official-stockfish/Stockfish/pull/3848

Bench: 5121336

descriptionstockfish of the neural network - Page 15 Emptyhttps://abrok.eu/stockfish/

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Author: Joost VandeVondele
Date: Tue Dec 14 13:41:12 2021 +0100
Timestamp: 1639485672

Remove NNUE scaling term

remove pawns scaling, probably correlated with piece scaling, and might be less useful with the recent improved nets. Might allow for another tune of the scaling params.

passed STC
https://tests.stockfishchess.org/tests/view/61afdb2e56fcf33bce7df31a
LLR: 2.95 (-2.94,2.94) <-2.25,0.25>
Total: 280864 W: 72198 L: 72399 D: 136267 Elo -0.25
Ptnml(0-2): 854, 32356, 74346, 31889, 987

passed LTC
https://tests.stockfishchess.org/tests/view/61b233a606b4c2dcb1b16140
LLR: 2.95 (-2.94,2.94) <-2.25,0.25>
Total: 400136 W: 102669 L: 103012 D: 194455 Elo -0.30
Ptnml(0-2): 212, 42005, 116047, 41522, 282

closes https://github.com/official-stockfish/Stockfish/pull/3851

Bench: 4735679

descriptionstockfish of the neural network - Page 15 Emptyhttps://abrok.eu/stockfish/

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Author: farseer
Date: Fri Dec 17 18:12:47 2021 +0100
Timestamp: 1639761167

Update default net to nn-4401e826ebcc.nnue

Using data T60 12/1/20 to 11/2/2021, T74 4/22/21 to 7/27/21, T75 6/3/21 to 10/16/21, T76
(half of the randomly interleaved dataset due to a mistake merging) 11/10/21 to 11/21/21,
wrongIsRight_nodes5000pv2.binpack, and WrongIsRight-Reloaded.binpack combined and shuffled
position by position.

Trained with LR=4.375e-4 and WDL filtering enabled:

python train.py --smart-fen-skipping --random-fen-skipping 0 --features=HalfKAv2_hm^
--lambda=1.0 --max_epochs=800 --seed 910688689 --batch-size 16384
--progress_bar_refresh_rate 30 --threads 4 --num-workers 4 --gpus 1
--resume-from-model C:\msys64\home\Mike\nnue-pytorch\9b3d.pt
E:\trainingdata\T60-T74-T75-T76-WiR-WiRR-PbyP.binpack
E:\trainingdata\T60-T74-T75-T76-WiR-WiRR-PbyP.binpack

Passed STC
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 41848 W: 10962 L: 10676 D: 20210 Elo +2.37
Ptnml(0-2): 142, 4699, 11016, 4865, 202
https://tests.stockfishchess.org/tests/view/61ba886857a0d0f327c2cfd6

Passed LTC
LLR: 2.94 (-2.94,2.94) <0.50,3.00>
Total: 27776 W: 7208 L: 6953 D: 13615 Elo +3.19
Ptnml(0-2): 14, 2808, 8007, 3027, 32
https://tests.stockfishchess.org/tests/view/61baae4d57a0d0f327c2d96f

closes https://github.com/official-stockfish/Stockfish/pull/3856

Bench: 4667591

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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SF-PB-191221_x64, "Simplification in evaluate_nnue.cpp" https://github.com/official-stockfish/Stockfish/commit/74776dbcd57a1bdf2d5328e5750cc1d00244e17d
Bench: 4826206
https://pixeldrain.com/u/dNEX6vBz

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https://abrok.eu/stockfish/

Author: bmc4
Date: Mon Dec 27 16:43:44 2021 +0100
Timestamp: 1640619824

Don't direct prune a move if it's a retake

STC:
LLR: 2.94 (-2.94,2.94) <0.00,2.50>
Total: 36304 W: 9499 L: 9226 D: 17579 Elo +2.61
Ptnml(0-2): 96, 4102, 9508, 4325, 121
https://tests.stockfishchess.org/tests/view/61c7069ae68b2a714b6dca27

LTC:
LLR: 2.95 (-2.94,2.94) <0.50,3.00>
Total: 93824 W: 24478 L: 24068 D: 45278 Elo +1.52
Ptnml(0-2): 70, 9644, 27082, 10038, 78
https://tests.stockfishchess.org/tests/view/61c725fee68b2a714b6dcfa2

closes https://github.com/official-stockfish/Stockfish/pull/3871

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SF-PB-030122_x64
Author: lonfom169

https://github.com/official-stockfish/Stockfish/pull/3717

Timestamp: 1641142184

Simplify away rangeReduction

Bench: 4048312

https://pixeldrain.com/u/24gCZCgS 🍺

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@lisandr wrote:


the avx blunders at very end game lol

descriptionstockfish of the neural network - Page 15 EmptyRe: stockfish of the neural network

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SF-PB-100122_x64
Author: Michael Chaly
Date: Mon Jan 10 19:35:53 2022 +0100
Timestamp: 1641839753

Adjust pruning constants

Elo progress -> +30.51 https://github.com/glinscott/fishtest/wiki/Regression-Tests

Engine https://pixeldrain.com/u/KCB3bqaP

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