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Stockfish 12

descriptionStockfish 12 EmptyStockfish 12

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stockfish_20052114

https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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stockfish_20052220

https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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Author: Joost VandeVondele
Date: Sat May 23 13:14:09 2020 +0200
Timestamp: 1590232449

Improve CI testing

also enable CXXFLAGS="-D_GLIBCXX_DEBUG" in CI.

closes https://github.com/official-stockfish/Stockfish/pull/2692

No functional change


Author: xoto10
Date: Sat May 23 13:19:26 2020 +0200
Timestamp: 1590232766

Keep low ply history from previous move

This patch keeps the low-ply history from the previous move, shifting the data down by 2 ply.

Tested with closedpos book:

STC:
LLR: 2.93 (-2.94,2.94) {-0.50,1.50}
Total: 71584 W: 14175 L: 13891 D: 43518 Elo +1.38
Ptnml(0-2): 1069, 8228, 16993, 8354, 1148
https://tests.stockfishchess.org/tests/view/5ec0eaafe9d85f94dc429974

LTC:
LLR: 2.94 (-2.94,2.94) {0.25,1.75}
Total: 96552 W: 13946 L: 13498 D: 69108 Elo +1.61
Ptnml(0-2): 676, 9082, 28375, 9404, 739
https://tests.stockfishchess.org/tests/view/5ec145efe9d85f94dc4299b0

closes https://github.com/official-stockfish/Stockfish/pull/2688

Bench 5148950


Author: Joost VandeVondele
Date: Sat May 23 13:27:16 2020 +0200
Timestamp: 1590233236

small cleanups

closes https://github.com/official-stockfish/Stockfish/pull/2653

No functional change


https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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Author: Joost VandeVondele
Date: Sat May 30 20:32:52 2020 +0200
Timestamp: 1590863572

Less pruning in draw PV lines.

no futility pruning for certain captures if the PvNode has a draw eval.

passed STC:
LLR: 2.94 (-2.94,2.94) {-0.50,1.50}
Total: 59392 W: 11576 L: 11302 D: 36514 Elo +1.60
Ptnml(0-2): 977, 6816, 13920, 6922, 1061
https://tests.stockfishchess.org/tests/view/5ed0b1bb042fa6d77c355295

passed LTC:
LLR: 2.94 (-2.94,2.94) {0.25,1.75}
Total: 64040 W: 8273 L: 7923 D: 47844 Elo +1.90
Ptnml(0-2): 424, 5842, 19220, 6028, 506
https://tests.stockfishchess.org/tests/view/5ed145e0042fa6d77c35531c

closes https://github.com/official-stockfish/Stockfish/pull/2705

Bench: 4704615


Author: protonspring
Date: Sat May 30 20:30:31 2020 +0200
Timestamp: 1590863431

Consolidate all attacks bitboards

This is a non-functional simplification that simplifies getting attacks bitboards.

* consolidates all attacks to attacks_bb (remove Position::attacks_from(..)).
* attacks_bb<PieceType>(square) gets pseudo attacks
* attacks_bb<PieceType>(square, bitboard) gets attacks considering occupied squares in the bitboard).
* pawn_attacks_bb(Color, Square) gets pawn attacks like other pawn attack bitboards.
* Wraps all access to PawnAttacks arrays and PseudoAttacks arrays and adds asserts as appropriate.

Passed STC
LLR: 2.95 (-2.94,2.94) {-1.50,0.50}
Total: 90208 W: 17533 L: 17482 D: 55193 Elo +0.20
Ptnml(0-2): 1412, 10232, 21798, 10217, 1445
https://tests.stockfishchess.org/tests/view/5ece996275787cc0c05d9790

closes https://github.com/official-stockfish/Stockfish/pull/2703

No functional change


https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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!! latest version !!
Author: Daylen Yang
Date: Wed Aug 12 07:49:36 2020 +0200
Timestamp: 1597211376

Use posix_memalign for Apple Silicon instead of _mm_malloc

fails to build on that target, because of missing Intel Intrinsics.
macOS has posix_memalign() since ~2014 so we can simplify the code and just use that for all Apple platforms.

closes https://github.com/official-stockfish/Stockfish/pull/2985

No functional change.

https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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Author: Unai Corzo
Date: Mon Aug 17 12:27:35 2020 +0200
Timestamp: 1597660055

Simplify away the passed pawn extension

STC https://tests.stockfishchess.org/tests/view/5f3955f0e98b6c64b3df41d7
LLR: 2.96 (-2.94,2.94) {-1.50,0.50}
Total: 31992 W: 3611 L: 3548 D: 24833 Elo +0.68
Ptnml(0-2): 174, 2658, 10273, 2713, 178

LTC https://tests.stockfishchess.org/tests/view/5f399e41e98b6c64b3df4210
LLR: 3.01 (-2.94,2.94) {-1.50,0.50}
Total: 29568 W: 1488 L: 1480 D: 26600 Elo +0.09
Ptnml(0-2): 40, 1272, 12142, 1300, 30

closes https://github.com/official-stockfish/Stockfish/pull/3017

bench: 3844671

-----

Recommended net: https://tests.stockfishchess.org/api/nn/nn-82215d0fd0df.nnue

https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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Stockfish 12 has come!!!

https://abrok.eu/stockfish/

descriptionStockfish 12 EmptyRe: Stockfish 12

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@Waldemar wrote:
Stockfish 12 has come!!!

https://abrok.eu/stockfish/


Is there any Android version of this Engine sir ?

descriptionStockfish 12 EmptyRe: Stockfish 12

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https://stockfishchess.org/download/

https://play.google.com/store/apps/details?id=org.petero.droidfish

descriptionStockfish 12 EmptyRe: Stockfish 12

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@Waldemar wrote:


Thank you Sir 🙏☺

descriptionStockfish 12 EmptyRe: Stockfish 12

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@Zippo wrote:


stockfish 12 fonctionne parfaitement et son installation se fait automatiquement par défaut

descriptionStockfish 12 EmptyRe: Stockfish 12

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A new network from Sergio has been released

https://pixeldrain.com/u/JeRyBGbq

descriptionStockfish 12 EmptyRe: Stockfish 12

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According to my first tests, the new network from Sergio SV 1046 is strong, but not as strong as SV 1739. I think SV 1739 is currently the strongest network at the moment. Maybe someone has the opportunity to test it with other strong networks.

descriptionStockfish 12 EmptyRe: Stockfish 12

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Each tester has different versions of strong networks ,and I have the strongest one-the last network.

descriptionStockfish 12 EmptyRe: Stockfish 12

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Stockfish 12 06-09-2020-211847

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

descriptionStockfish 12 EmptyRe: Stockfish 12

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New network from Sergio:
20200908-1733.bin 2020-09-08 18:41 20M

https://www.comp.nus.edu.sg/~sergio-v/nnue/

descriptionStockfish 12 EmptyRe: Stockfish 12

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put the champion 1046 against the new network 1733. Results will be available later

descriptionStockfish 12 EmptyRe: Stockfish 12

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Stockfish 12 08-09-2020-183337

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


new champion

Games: https://pixeldrain.com/u/Dz6jupuj

descriptionStockfish 12 EmptyRe: Stockfish 12

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Stockfish 110920 x32-x64 Chessman

https://pixeldrain.com/u/Hmg8p4yh

descriptionStockfish 12 EmptyRe: Stockfish 12

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Crystal 3.0 x32-x64 Chessman

https://pixeldrain.com/u/hu2tnLj4

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[quote="lisandr"]Crystal 3.0 x32-x64 Chessman

Hi Bro Lisandr.. ☺✋
Thx for the link.. but I want to ask u something.. about Chess Engine ( for Android )

Which Engines u think are the strongest with it's own book ? .is it Brainfish ? Or Bluefish ? Or what ?
I have a little confused here to decide which one are the best for any Android devices 😔

Regards 🙏

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My opinion is Stockfish, the rest of its copies, clones, which is better than the original or a copy?

descriptionStockfish 12 EmptyRe: Stockfish 12

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@lisandr wrote:
My opinion is Stockfish, the rest of its copies, clones, which is better than the original or a copy?


Woww.. I'm so surprised.. because I've just heard that there is an Engine of Stockfish which has it's own book..
Can u tell me which Stockfish that u mentioned ?
Or perhaps if its not bothering u, the link of it's Engine would be so much grateful 🙏

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Stockfish 12 of course what else. There is a Stockfish polyglot in which you can add several books . I don't know what kind of book it is. I know that there is a network, and I do not use books, why, if there is a strong network.

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