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stockfish of the neural network

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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@lisandr wrote:
ChessMan:

My compilation of SF-PB-120921 x32-x64
with support for Polyglot Books (.bin)
SRC's updated by Skynet


Author: Michael Chaly
Date: Fri Sep 10 11:50:43 2021 +0200
Timestamp: 1631267443

Decrease depth for cutnodes with no tt move

By analogy to existing logic of decreasing depth for PvNodes w/o tt move
do the same for cutNodes.


Bench 5891181

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


Hopely someone who's capable would like to compile this source of build engine into Android..

Please 🙏

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: SFisGOD
Date: Wed Sep 15 17:50:20 2021 +0200
Timestamp: 1631721020

Update default net to nn-13406b1dcbe0.nnue

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: xoto10
Date: Fri Sep 17 08:14:36 2021 +0200
Timestamp: 1631859276

Increase optimumTime by 10%

STC 10+0.1 :
LLR: 2.94 (-2.94,2.94) <-0.50,2.50>
Total: 47032 W: 12078 L: 11841 D: 23113 Elo +1.75
Ptnml(0-2): 159, 5098, 12746, 5373, 140
https://tests.stockfishchess.org/tests/view/613f9df1f29dda16fcca8731

LTC 60+0.6 :
LLR: 2.95 (-2.94,2.94) <0.50,3.50>
Total: 66248 W: 16631 L: 16301 D: 33316 Elo +1.73
Ptnml(0-2): 44, 6560, 19578, 6906, 36
https://tests.stockfishchess.org/tests/view/6140603d7315e7c73204a4c1

Non-regression tests with other time control styles:

Moves/Time 40/10+0 :
LLR: 2.93 (-2.94,2.94) <-2.50,0.50>
Total: 51640 W: 13350 L: 13254 D: 25036 Elo +0.65
Ptnml(0-2): 183, 5770, 13797, 5908, 162
https://tests.stockfishchess.org/tests/view/6141592b7315e7c73204a599

TCEC Style 10+0.01 :
LLR: 2.94 (-2.94,2.94) <-2.50,0.50>
Total: 20592 W: 5300 L: 5157 D: 10135 Elo +2.41
Ptnml(0-2): 81, 2240, 5544, 2317, 114
https://tests.stockfishchess.org/tests/view/61425bb27315e7c73204a6a2

Sudden death 15+0 :
LLR: 2.94 (-2.94,2.94) <-2.50,0.50>
Total: 127104 W: 32728 L: 32741 D: 61635 Elo -0.04
Ptnml(0-2): 735, 13973, 34149, 13960, 735
https://tests.stockfishchess.org/tests/view/614256a77315e7c73204a699

The first 3 tests were run with an initial version of the code, which was then modified to make the amount of extra time dependent on the size of increment. No increment gives no extra time, and the extra time given increases until an increment of 1% or more of remaining time gives 10% extra thinking time.

closes https://github.com/official-stockfish/Stockfish/pull/3702

Bench 6658747

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: Michael Chaly
Date: Tue Sep 21 19:48:40 2021 +0200
Timestamp: 1632246520

Combo of various parameter tweaks

Combination of parameter tweaks in search, evaluation and time management.
Original patches by snicolet xoto10 lonfom169 and Vizvezdenec.

Includes:

* Use bigger grain of positional evaluation more frequently (up to 1 exchange difference in non-pawn-material);
* More extra time according to increment;
* Increase margin for singular extensions;
* Do more aggresive parent node futility pruning.

Passed STC
https://tests.stockfishchess.org/tests/view/6147deab3733d0e0dd9f313d
LLR: 2.94 (-2.94,2.94) <-0.50,2.50>
Total: 45488 W: 11691 L: 11450 D: 22347 Elo +1.84
Ptnml(0-2): 145, 5208, 11824, 5395, 172

Passed LTC
https://tests.stockfishchess.org/tests/view/6147f1d53733d0e0dd9f3141
LLR: 2.94 (-2.94,2.94) <0.50,3.50>
Total: 62520 W: 15808 L: 15482 D: 31230 Elo +1.81
Ptnml(0-2): 43, 6439, 17960, 6785, 33

closes https://github.com/official-stockfish/Stockfish/pull/3710

bench 5575265

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Сompilation of ChessmanSF-PB-230921 x32-x64
with support for Polyglot Books (.bin)
SRC's updated by Skynet


Author: Michael Chaly
Date: Tue Sep 21 19:48:40 2021 +0200
Timestamp: 1632246520

Combo of various parameter tweaks


Bench 5575265

Download: https://pixeldrain.com/u/xdimu714

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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I am new here, please provide another link my windows 10 get error when trying to DL this link. Thank you.

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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@ferdauz wrote:
I am new here, please provide another link my windows 10 get error when trying to DL this link. Thank you.


https://www.dropbox.com/s/ys26jisf9bi37jv/Stockfish_PB_230921_x32-x64.7z?dl=0

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: Stéphane Nicolet
Date: Thu Sep 23 23:19:06 2021 +0200
Timestamp: 1632431946

Detect search explosions

This patch detects some search explosions (due to double extensions in
search.cpp) which can happen in some pathological positions, and takes
measures to ensure progress in search even for these pathological situations.

While a small number of double extensions can be useful during search
(for example to resolve a tactical sequence), a sustained regime of
double extensions leads to search explosion and a non-finishing search.
See the discussion in https://github.com/official-stockfish/Stockfish/pull/3544
and the issue https://github.com/official-stockfish/Stockfish/issues/3532 .

The implemented algorithm is the following:

a) at each node during search, store the current depth in the stack.
Double extensions are by definition levels of the stack where the
depth at ply N is strictly higher than depth at ply N-1.

b) during search, calculate for each thread a running average of the
number of double extensions in the last 4096 visited nodes.

c) if one thread has more than 2% of double extensions for a sustained
period of time (6 millions consecutive nodes, or about 4 seconds on
my iMac), we decide that this thread is in an explosion state and
we calm down this thread by preventing it to do any double extension
for the next 6 millions nodes.

To calculate the running averages, we also introduced a auxiliary class
generalizing the computations of ttHitAverage variable we already had in
code. The implementation uses an exponential moving average of period 4096
and resolution 1/1024, and all computations are done with integers for
efficiency.

-----------

Example where the patch solves a search explosion:

```
./stockfish
ucinewgame
position fen 8/Pk6/8/1p6/8/P1K5/8/6B1 w - - 37 130
go infinite
```

This algorithm does not affect search in normal, non-pathological positions.
We verified, for instance, that the usual bench is unchanged up to depth 20
at least, and that the node numbers are unchanged for a search of the starting
position at depth 32.

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

See https://github.com/official-stockfish/Stockfish/pull/3714

Bench: 5575265

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: Stéphane Nicolet
Date: Thu Sep 23 23:24:28 2021 +0200
Timestamp: 1632432268

Tweak doubly singular condition (Topo's patch)

This patch relax a little bit the condition for doubly singular moves
(ie moves that are so forced that we think that they deserve a local
double extension of the search). We lower the margin and allow up to
six such double extensions in the path between the root and the critical
node.

Original idea by Siad Daboul (@TopoIogist) in PR #3709

Tested with the previous commit:

passed STC:
LLR: 2.94 (-2.94,2.94) <-0.50,2.50>
Total: 33048 W: 8458 L: 8236 D: 16354 Elo +2.33
Ptnml(0-2): 120, 3701, 8660, 3923, 120
https://tests.stockfishchess.org/tests/view/614b24347bdc23e77ceb88fe

passed LTC:
LLR: 2.95 (-2.94,2.94) <0.50,3.50>
Total: 54176 W: 13712 L: 13406 D: 27058 Elo +1.96
Ptnml(0-2): 36, 5653, 15399, 5969, 31
https://tests.stockfishchess.org/tests/view/614b3b727bdc23e77ceb8911

closes https://github.com/official-stockfish/Stockfish/pull/3714

Bench: 5792377

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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!! latest version !!

Author: OfekShochat
Date: Fri Sep 24 23:17:48 2021 +0200

Timestamp: 1632518268

Range reductions

adding reductions for when the delta between the static eval and the child's eval is consistently low.

passed STC
https://tests.stockfishchess.org/html/live_elo.html?614d7b3c7bdc23e77ceb8a5d
LLR: 2.95 (-2.94,2.94) <-0.50,2.50>
Total: 88872 W: 22672 L: 22366 D: 43834 Elo +1.20
Ptnml(0-2): 343, 10150, 23117, 10510, 316

passed LTC
https://tests.stockfishchess.org/html/live_elo.html?614daf3e7bdc23e77ceb8a82
LLR: 2.93 (-2.94,2.94) <0.50,3.50>
Total: 24368 W: 6153 L: 5928 D: 12287 Elo +3.21
Ptnml(0-2): 13, 2503, 6937, 2708, 23

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

Bench: 5443950

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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stockfish of the neural network - Page 13 25-09-2021-120734

Processor:Intel Core i5-7600K, GHz:4.20 , Сore:1, Gui:Fritz-11, Games:100, Time:3+2, Book:Off ,Endgame tables:Syzygy 3-4-5, Hash:128 MB, Ponder:Off.

https://pixeldrain.com/u/YcVozJw4

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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please, in android version, thank you.

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Soon Stockfish 15

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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thank you, Waldemar fyi.

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: Stéphane Nicolet
Date: Sat Sep 25 22:12:17 2021 +0200
Timestamp: 1632600737

Reduction instead of cutoff

In master, during singular move analysis, when both the transposition value
and a reduced search for the other moves seem to indicate a fail high, we
heuristically prune the whole subtree and return an fail high score.

This patch is a little bit more cautious in this case, and instead of the
risky cutoff, we now search the ttMove with a reduced depth (by two plies).

STC:
https://tests.stockfishchess.org/tests/view/614dafe07bdc23e77ceb8a89
LLR: 2.94 (-2.94,2.94) <-0.50,2.50>
Total: 46728 W: 11909 L: 11666 D: 23153 Elo +1.81
Ptnml(0-2): 181, 5288, 12168, 5561, 166

LTC:
https://tests.stockfishchess.org/tests/view/614dc84abe4c07e0ecac3c95
LLR: 2.94 (-2.94,2.94) <0.50,3.50>
Total: 74520 W: 18809 L: 18450 D: 37261 Elo +1.67
Ptnml(0-2): 45, 7735, 21346, 8084, 50

closes https://github.com/official-stockfish/Stockfish/pull/3718

Bench: 5499262

https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: Michael Chaly
Date: Sun Sep 26 06:58:14 2021 +0200
Timestamp: 1632632294


https://abrok.eu/stockfish/

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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From ChessMan

SF-PB-011021 x32-x64
with support for Polyglot Books (.bin)
SRC's updated by Skynet


Author: Michael Chaly
Date: Sun Sep 26 06:58:14 2021 +0200
Timestamp: 1632632294

Extend quiet tt moves at PvNodes


Bench: 5714575

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

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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@lisandr wrote:
From ChessMan

SF-PB-011021 x32-x64
with support for Polyglot Books (.bin)
SRC's updated by Skynet


Author: Michael Chaly
Date: Sun Sep 26 06:58:14 2021 +0200
Timestamp: 1632632294

Extend quiet tt moves at PvNodes


Bench: 5714575

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


Hopely someone who's capable would like to compile this build of engine for Android.. Amien 😇😔

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Author: Michael Chaly
Date: Sun Oct 3 11:28:19 2021 +0200
Timestamp: 1633253299

Increase reductions with thread count

Respin of multi-thread idea that was simplified away recently: basically doing
more reductions with thread count since Lazy SMP naturally widens search. With
drawish book this idea got simplified away but with less drawish book it again
gains elo, maybe trying to reinstall other ideas that were simplified away
previously can be beneficial.

passed STC
LLR: 2.96 (-2.94,2.94) <-0.50,2.50>
Total: 39736 W: 10205 L: 9986 D: 19545 Elo +1.91
Ptnml(0-2): 45, 4254, 11064, 4447, 58
https://tests.stockfishchess.org/tests/view/615750702d02f48db3961b00

passed LTC
LLR: 2.97 (-2.94,2.94) <0.50,3.50>
Total: 60352 W: 15530 L: 15218 D: 29604 Elo +1.80
Ptnml(0-2): 24, 5900, 18016, 6212, 24
https://tests.stockfishchess.org/tests/view/6157d8935488e26ea5eace7f

closes https://github.com/official-stockfish/Stockfish/pull/3724

Bench 5714575

https://abrok.eu/stockfish/

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Author: bmc4
Date: Tue Oct 19 22:14:39 2021 +0200
Timestamp: 1634674479

Adjust TTdepth acceptance on early cutoff

STC:
LLR: 2.94 (-2.94,2.94) <-0.50,2.50>
Total: 63784 W: 16185 L: 15917 D: 31682 Elo +1.46
Ptnml(0-2): 231, 7309, 16531, 7603, 218
https://tests.stockfishchess.org/tests/view/616ed03a942d40685e3237c0

LTC:
LLR: 2.93 (-2.94,2.94) <0.50,3.50>
Total: 12728 W: 3268 L: 3072 D: 6388 Elo +5.35
Ptnml(0-2): 8, 1298, 3563, 1480, 15
https://tests.stockfishchess.org/tests/view/616ef156942d40685e32380a

closes https://github.com/official-stockfish/Stockfish/pull/3748

bench: 7050445
https://github.com/official-stockfish/Stockfish/commit/4af1ae82c6b017a3d0cac04ad1ad916a7e26a529

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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SF-PB-191021 x64 (no x32, BMI2, SSE2)
With support for Polyglot Books (.bin)

Author: bmc4
Adjust TTdepth acceptance on early cutoff.

bench 7050445
https://pixeldrain.com/u/ih6pJgj3
========================
From Chessman x32-x64 (SSE2 & BMI2) compilations, same engine SF-PB-191021.

Download: https://pixeldrain.com/u/CfBNNF8e[/b]
Test from friend :
SF PB 191021 AVX2 vs. Raubfisch X47d2_nn_sl-64

Processor AMD A10 – 9700 R7,10 Compute Cores 4C + 6G - 3.50 GHz - RAM 8.00 GB - 64-bit operating system - x64 processor - Windows 10 Pro - 1024 mb hash – Fritz 16 GUI – Permanent brain: OFF – opening book: SALC V5.03 fc 10 moves 5000 Opening Test Suite - final tablebases: Syzygy 3-4-5 pieces - both engines play with 4 threads and large pages - NNUE: nn-13406b1dcbe0.nnue for two engines - Raubfisch: Use Experience file deleted before each test - Raubfisch: Dybamic Optimism ON – Use Self Learning On – Experience Read Only OFF

DESKTOP-TORM2PL, Blitz 5min  0

                                   
1   SF PB 191021 Skynet        +23  +23/=135/-12 53.24%   90.5/170
2   Raubfisch X47d2_nn_sl-64   -23  +12/=135/-23 46.76%   79.5/170

Games in PGN: mediafire.com file/dgck3m6359sth2f/Engmatch+9+-1375.pgn/file


Last edited by ChessFan1 on Mon Oct 25, 2021 6:39 am; edited 1 time in total

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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Which version latest for Chessman-PB for avx2?

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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@cyberops wrote:
Which version latest for Chessman-PB for avx2?

https://pixeldrain.com/u/ih6pJgj3

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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[quote="ChessFan1"]
@cyberops wrote:
Which version latest for Chessman-PB for avx2?



You are nice thanks, also I'm search for too many topics but I dont see for good .abk book download URL you  have it?

descriptionstockfish of the neural network - Page 13 EmptyRe: stockfish of the neural network

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@cyberops wrote:
@ChessFan1 wrote:
@cyberops wrote:
Which version latest for Chessman-PB for avx2?



You are nice thanks, also I'm search for too many topics but I dont see for good .abk book download URL you  have it?



Why don't u serach in the OPENING BOOK section in this forum ?
All the books from many various format are there, u just have to dig in

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