Stockfish

on Mon Apr 14, 2014 6:22 am by · on Mon Apr 14, 2014 6:22 am by

Here's RDMF x64 compile. Enjoy your testing.

http://www.mediafire.com/download/aga5ptpj5r77a08/stockfish_130414RDMF.7z

on Mon Apr 14, 2014 8:55 pm by · on Mon Apr 14, 2014 8:55 pm by

Jean-Francois Romang wrote:I tried to build an universal stockfish x64 windows executable : https://db.tt/U1KrSWjZ
It should auto-detect your CPU at startup (x86-64, x86-64-modern, or x86-64-bmi2) so that you have the fastest stockfish running in an universal way.

on Tue Apr 15, 2014 2:22 pm by · on Tue Apr 15, 2014 2:22 pm by

@Ferg2013 wrote:Here's RDMF x64 compile. Enjoy your testing.

http://www.mediafire.com/download/aga5ptpj5r77a08/stockfish_130414RDMF.7z

I'm replacing the compile with this...a very strong Dev from RDM.

http://www.mediafire.com/download/m9bq5dndsobjfd5/stockfish_140414RDMF.7z

on Tue Apr 15, 2014 7:51 pm by · on Tue Apr 15, 2014 7:51 pm by

32 bit systems now : https://db.tt/PigxMk0H

https://db.tt/U1KrSWjZ

Stockfish universal x64

on Tue Apr 15, 2014 9:46 pm by · on Tue Apr 15, 2014 9:46 pm by

Omitted.

Last edited by VocalTechnique on Tue Apr 15, 2014 9:51 pm; edited 1 time in total (Reason for editing : Omission.)

on Tue Apr 15, 2014 9:50 pm by · on Tue Apr 15, 2014 9:50 pm by

Stockfish vs Glaurung
Authors: Tord Romstad, Marco Costalba, Joona Kiiski
Stable release date: Stockfish DD [29 November 2013]

Features:
- Maximum size of the transposition tables is eight gigabytes.
- Advanced alpha-beta search and uses bitboards.
- Characterized by great search depth, due in part to more aggressive Late Move Reductions.
- - Late Move Reductions: Late Move Reductions (LMR) is a non-game specific enhancement to the alpha-beta algorithm and its variants which attempts to examine a game search tree more efficiently. It uses the assumption that good game-specific move ordering causes a program to search the most likely moves early. If a cut-off is going to happen in a search, the first few moves are the ones most likely to cause them. In games like chess, most programs search winning captures and "killers" first. LMR will reduce the search depth for moves searched later at a given node. This allows the program to search deeper along the critical lines, and play better.

History:
- Originated from Glaurung
- - open source chess engine created by Romstad and first released in 2004.
- - Costalba created Stockfish 1.0 in November 2008 by forking the 2.1 version of Glaurung.
- - New ideas / code changes transferred between the two programs in both directions.
- - Romstad discontinued Glaurung in favor of Stockfish, which was the more advanced engine at the time.
- - The last Glaurung version 2.2 was released in December 2008.

Stockfish Development:
- Changes to game-playing code are accepted or rejected based on results of playing thousands of games against an older version, using sequential probability ratio testing.
- Stockfish test framework has used a total of more than 110 years of CPU time donated by volunteers (March 2014).
- 70 million chess games have been played for Stockfish (March 2014).

on Thu Apr 17, 2014 9:31 am by · on Thu Apr 17, 2014 9:31 am by

Stockfish dev - 17 Apr 2014 : http://abrok.eu/stockfish/

Remove supporting pawns

Tested in no-regression mode

Passed both STC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 44957 W: 7984 L: 7903 D: 29070

and LTC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 12396 W: 1916 L: 1783 D: 8697

on Fri Apr 18, 2014 6:05 am by · on Fri Apr 18, 2014 6:05 am by

Hi Bob - Could you please run a test with this compile against RDM orig dev? I've done the test with few games and the RDMF version looks promising. Thanks for your time.

http://www.mediafire.com/download/aap5i1ob41wedd4/stockfish_180414RDMF.7z

on Sat Apr 19, 2014 2:16 pm by · on Sat Apr 19, 2014 2:16 pm by

http://tests.stockfishchess.org/tests

***

14-04-14

sn harassing diff

LLR: 2.97 (-2.94,2.94) [0.00,6.00]

Total: 78140 W: 11781 L: 11340 D: 55019

sprt @ 60+0.05 th 1

LTC : restrict the usage of the slow popcount() to the 13% of cases where more_than_one(eatableEnemies) is true. (bonus = S(15,10))

***

I'm not so sure but
that above successful update/patch is nowhere to be seen on the page below

http://abrok.eu/stockfish/

do you think this patch is not applied?

on Sun Apr 20, 2014 5:16 pm by · on Sun Apr 20, 2014 5:16 pm by

Stockfish dev - 20 Apr 2014 : http://abrok.eu/stockfish/
Stockfish dev Syzygy - 20 Apr 2014 : http://abrok.eu/stockfish_syzygy/

Small simplification to passed pawns

Tested in no-regression mode.

Passed both STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 28521 W: 5066 L: 4958 D: 18497

And LTC
LLR: 3.04 (-2.94,2.94) [-3.00,1.00]
Total: 21939 W: 3261 L: 3138 D: 15540

on Mon Apr 21, 2014 2:19 pm by · on Mon Apr 21, 2014 2:19 pm by

Newest:

Author: Marco Costalba
Date: Mon Apr 21 14:30:27 2014 +0200
Timestamp: 1398083427
Reset DrawValue[] before new search
Spotted by Ronald de Man
bench: 7384368 http://abrok.eu/stockfish/

on Tue Apr 22, 2014 5:02 am by · on Tue Apr 22, 2014 5:02 am by

Here's the latest RDMF w/LP support, compiled based on RDM orig dev. Tested against RDM Dev using Blue4.ctg in STC: 2m, W12-D37-L5. Enjoy your testing. Thanks

http://www.mediafire.com/download/8ml67h80pyakae7/stockfish_210414RDMF.7z

on Tue Apr 22, 2014 8:21 pm by · on Tue Apr 22, 2014 8:21 pm by

Ferg2013, according to GPL, source code should be available beside the binary for download.

on Wed Apr 23, 2014 10:49 am by · on Wed Apr 23, 2014 10:49 am by

BLZ INEED THIS ENGINE >>> Stockfish IpmanSE3 x64 bmi2

on Wed Apr 23, 2014 10:51 am by · on Wed Apr 23, 2014 10:51 am by

And also it is not working on my Windows 7 How can we make it work?

on Wed Apr 23, 2014 1:19 pm by · on Wed Apr 23, 2014 1:19 pm by

@sahary wrote:BLZ INEED THIS ENGINE >>> Stockfish IpmanSE3 x64 bmi2

Stockfish RDM is much better... http://abrok.eu/stockfish_syzygy/ thumb up

on Wed Apr 23, 2014 6:31 pm by · on Wed Apr 23, 2014 6:31 pm by

thanks waelsae thumb up

on Thu Apr 24, 2014 6:23 am by · on Thu Apr 24, 2014 6:23 am by

but on my machine `RW` more powerful and wonderful in the original . . . think

want do it compiler do not know how. .

on Thu Apr 24, 2014 5:28 pm by · on Thu Apr 24, 2014 5:28 pm by

24-04-14 ra rook_vs_minors diff

LLR: 2.96 (-2.94,2.94) [-1.50,4.50]
Total: 9157 W: 1678 L: 1551 D: 5928

Add some rook vs minor(s) knowledge. Fixed version.

Stockfish dev - 24 Apr 2014 : http://abrok.eu/stockfish/

Remove RookOn7th and merge values into psqt

Tested in no-regression mode:

STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 55678 W: 9954 L: 9892 D: 35832

LTC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 9238 W: 1448 L: 1311 D: 6479

on Fri Apr 25, 2014 12:33 pm by · on Fri Apr 25, 2014 12:33 pm by

I can confirm that this is the best Stockfish version so far. thumb up

https://www.chess2u.com/t7485p315-stockfish-tests#55055

on Fri Apr 25, 2014 1:41 pm by · on Fri Apr 25, 2014 1:41 pm by

I too can confirm this on Long Time Control

on Sun Apr 27, 2014 2:56 pm by · on Sun Apr 27, 2014 2:56 pm by

Stockfish Build Your Own (BYO) by Brice Allenbrand

The 106b DOES IT !! Cool Brice IS AWESOME !!! (https://www.dropbox.com/sh/4rubami2nvldcoo/zgjePzy8p7/BYO)

Downloaded latest MC src - "Speed up by almost 3%" - BYO106b - compiled it !!

I (BYO) also build it from 'Internal' ! Also downloaded latest RW builds from drop box and downloaded 'Abrok.ru' dev build of MC commit "Speed up by almost 3%"

Conducted Test 12 - and WOW ! The results - especially in r/o 'Abrok.ru' - speak for themselves !! Have a look ...

TEST12 (16 x "bench 1024 4 16") Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (Haswell) 4 CORES 3501 MHz HT ON (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3)

Code:

01 StockFishRW_473_140427_BYO106b_internal.exe! 8935+/- 50 Mnps 02 StockFishRW_482a_140427_BYO106b_internal.exe! 8836+/- 60 Mnps [b]03 StockFishRW_473_140427_BYO_MC_dev.exe 8806+/- 32 Mnps 04 StockFishRW_49a_140427_BYO106b_internal.exe! 8800+/- 60 Mnps 05 StockFishRW_49a_Brice_142304_BYO.exe! 8793+/- 61 Mnps 06 StockFishRW_modern_sse42_avx.exe! 8722+/- 57 Mnps 07 StockFishRW_482a_140427_BYO_MC_dev.exe 8710+/- 81 Mnps 08 StockFishRW_modern_sse42.exe! 8685+/- 52 Mnps 09 StockFishRW_140424_473_modern_sse42_avx.exe! 8684+/- 66 Mnps 10 StockFishRW_49a_140427_BYO_MC_dev.exe 8656+/- 41 Mnps 11 StockFishRW_140424_49a_modern_sse42_avx.exe! 8632+/- 42 Mnps 12 StockFishRW_140424_482a_modern_sse42_avx.exe! 8566+/- 79 Mnps 13 StockFishRW_x64.exe! 8499+/- 95 Mnps 14 StockFishRW_140424_473_modern_sse42.exe! 8484+/- 68 Mnps 15 StockFishRW_140424_49a_modern_sse42.exe! 8391+/- 66 Mnps 16 StockFishRW_140424_482a_modern_sse42.exe! 8366+/- 82 Mnps [b]17 stockfish_14042700_x64_modern_sse42.exe (abrok) 8209+/- 56 Mnps

Impressive ! Isn't it !?

Now at least MC & Martin should 'use' BYO instead of 'abrock' - it's within TCEC rules - the same default dev (by BYO !! - instead of abrok ?!)

Also tried 'putting - MEM_HANDLER.cpp', 'sort.cpp', 'tbcore.cpp', 'tbprobe.cpp', 'tbcore.h', 'tbprobe.h', 'ffpcnt.h' - files in default MC src & launched BYO - in 'hope' that it would give 'latest' RW build ... but NO ... it doesn't ... it's not that easy ! It seems one has to / need to manually set/unset some switches in the compiler command line ... and perhaps more ... RW builds are not just copy-paste ... seems Brice has to do a lot to give us RW builds ... Only if BYO could do that ....!?

on Wed Apr 30, 2014 2:20 am by · on Wed Apr 30, 2014 2:20 am by

I am looking for an engine to compete with and the time control is 20 minutes for each engine.

Thank you in advance!

on Wed Apr 30, 2014 8:15 am by · on Wed Apr 30, 2014 8:15 am by

a new SF update was released
just a moment ago!

*

Penalize hanging pieces

Passed both STC
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 8519 W: 1565 L: 1440 D: 5514

And LTC
LLR: 2.95 (-2.94,2.94) [0.00,6.00]
Total: 60618 W: 9141 L: 8777 D: 42700

bench: 8678654

*

LTC : Remove the attack vs defense test

*

I'm running the STC for this engine!
normally if we compare the win/loss ratio
winning percentage is not this high
as we can see here
as in this section

I postulate and extrapolate that
the elo gain is up to 10
which is a huge update

***

and the previous 5 sec LTC of the best SF version is quite done under the ThorRating list

***

[pgn]
[Event "Computer Chess Game"]
[Site "USER01"]
[Date "2014.04.28"]
[Round "42"]
[White "Stockfish 240414"]
[Black "Houdini 4 Pro w32"]
[Result "1-0"]
[TimeControl "I think this round was done with 5 sec per move"]
[Annotator "17. -0.20 17... +0.06"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8.
Bd3 Bb7 9. O-O a6 10. e4 c5 11. d5 Qc7 12. dxe6 fxe6 13. Bc2 Bd6 14. Ng5
Nf8 15. f4 O-O-O 16. Qe1 e5 17. fxe5 {-0.20/16 5} Bxe5 {+0.06/15 5} 18. Nf3
{+0.47/17} Ne6 {+0.13/15} 19. Nxe5 {-0.06/17} Qxe5 {+0.15/15} 20. Rf5
{-0.20/17} Qc7 {+0.22/15} 21. Qh4 {-0.20/17} Rhe8 {+0.27/16} 22. Rf2
{-0.50/16} h5 {+0.06/15} 23. Rf1 {-0.70/17} Kb8 {+0.38/15} 24. a3
{-0.49/17} Ka8 {+0.47/15} 25. Bd1 {-0.45/17} Qe5 {+0.51/15} 26. Be3
{-0.32/18} Rd3 {+0.40/15} 27. Re1 {-0.39/17} Ka7 {+0.44/14} 28. Rc1
{-0.21/16} g6 {+0.22/14} 29. Qg3 {-0.20/19} Qxg3 {+0.08/15} 30. hxg3
{-0.03/21} Nd4 {+0.13/17} 31. Bc2 {-0.07/22} Nxc2 {+0.01/17} 32. Bxc5+
{+0.00/23} Ka8 {+0.00/18} 33. Rxc2 {+0.00/22} Rxg3 {+0.00/19} 34. e5
{-0.06/20} Nd7 {+0.04/17} 35. Bd6 {+0.00/21} Rd3 {+0.04/19} 36. Rce2
{+0.00/23} Ka7 {+0.04/17} 37. Na2 {+0.00/24} Kb6 {+0.00/18} 38. Nb4
{+0.00/26} Rd4 {+0.00/21} 39. Nc2 {+0.00/28} Rd3 {+0.00/21} 40. Bb4
{-0.04/19} a5 {+0.00/16} 41. Bc3 {+0.00/21} Bd5 {+0.00/18} 42. e6
{+0.21/21} Nb8 {-0.19/17} 43. Nd4 {+0.41/22} b4 {-0.34/16} 44. axb4
{+0.46/24} axb4 {-0.31/18} 45. Rd2 {+0.52/24} Rxd2 {-0.42/18} 46. Bxd2
{+0.56/25} Kc5 {-0.38/19} 47. Be3 {+0.62/24} Kd6 {-0.44/18} 48. Bf4+
{+0.56/24} Kc5 {-0.38/20} 49. e7 {+0.62/25} Kxd4 {-0.40/19} 50. Bxb8
{+0.67/25} Kc5 {-0.44/20} 51. Bf4 {+0.68/25} Kc6 {-0.46/20} 52. Bd2
{+0.65/26} b3 {-0.49/20} 53. Bg5 {+0.72/28} Kd7 {-0.54/21} 54. Rd1
{+0.72/28} Ke6 {-0.51/21} 55. Kh2 {+0.72/28} Bc4 {-0.47/20} 56. Kg3
{+0.72/27} Bb5 {-0.62/20} 57. Bh4 {+0.72/25} Rg8 {-0.51/20} 58. Rd8
{+0.76/24} Re8 {-0.74/21} 59. Kf4 {+1.07/23} Kf7 {-1.03/19} 60. Ke5
{+1.37/22} Bc6 {-1.29/18} 61. Rd4 {+1.66/22} Bxg2 {-0.72/19} 62. Rf4+
{+1.79/21} Kg7 {-0.88/21} 63. Bg5 {+1.75/24} Bh3 {-1.43/19} 64. Rf8
{+2.62/27} Bd7 {-2.72/21} 65. Kd6 {+2.70/30} Bb5 {-2.82/22} 66. Ke6
{+2.74/30} Bc4+ {-2.83/22} 67. Kd7 {+2.74/31} Bb5+ {-2.83/23} 68. Kd6
{+2.81/32} h4 {-2.95/22} 69. Bf6+ {+2.81/30} Kh6 {-2.95/23} 70. Bxh4
{+2.81/30} Kh5 {-3.01/22} 71. Be1 {+2.81/29} g5 {-2.83/21} 72. Bc3
{+2.87/27} Ba4 {-3.19/20} 73. Bd2 {+2.88/27} Kh6 {-3.04/20} 74. Ke6
{+2.88/26} Kg6 {-3.28/22} 75. Rf6+ {+2.95/24} Kh5 {-3.34/22} 76. Rf5
{+3.01/24} Rg8 {-3.40/22} 77. Kf7 {+3.04/24} Rg6 {-3.54/21} 78. Ra5
{+3.15/25} Bd7 {-3.89/20} 79. e8=Q {+3.22/25} Bxe8+ {-4.28/21} 80. Kxe8
{+3.25/27} Rg7 {-3.88/19} 81. Rxg5+ {+49.18/42} Rxg5 {-10.49/38} 82. Bxg5
{+102.89/42} Kxg5 {-10.05/41} 83. Kd7 {+99.41/46} Kf4 {-21.52/44}
{Xboard adjudication} 1-0
[/pgn]

this is SF v. H4

as we can see here
both played almost neck and neck
but at the end one side won with the slightest margin possible

it was like a basketball match
in which both teams played almost equally throughout the whole match
so the audience members were put in a super precarious position
where they can't speculate which team will win
so the viewers were on the verge of the seat the whole time

in short, this was a quality match

if I remember correctly
I remenisce about the TC being 5 sec per move
aka LTC

on Wed Apr 30, 2014 12:47 pm by · on Wed Apr 30, 2014 12:47 pm by

[quote="Nicolas"]Stockfish Build Your Own (BYO) by Brice Allenbrand

[quote]The 106b DOES IT !! Cool Brice IS AWESOME !!! (https://www.dropbox.com/sh/4rubami2nvldcoo/zgjePzy8p7/BYO)

Downloaded latest MC src - "Speed up by almost 3%" - BYO106b - compiled it !!

I (BYO) also build it from 'Internal' ! Also downloaded latest RW builds from drop box and downloaded 'Abrok.ru' dev build of MC commit "Speed up by almost 3%"

Conducted Test 12 - and WOW ! The results - especially in r/o 'Abrok.ru' - speak for themselves !! Have a look ...

TEST12 (16 x "bench 1024 4 16") Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (Haswell) 4 CORES 3501 MHz HT ON (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3)

Code:: 01 StockFishRW_473_140427_BYO106b_internal.exe! 8935+/- 50 Mnps 02 StockFishRW_482a_140427_BYO106b_internal.exe! 8836+/- 60 Mnps [b]03 StockFishRW_473_140427_BYO_MC_dev.exe 8806+/- 32 Mnps 04 StockFishRW_49a_140427_BYO106b_internal.exe! 8800+/- 60 Mnps 05 StockFishRW_49a_Brice_142304_BYO.exe! 8793+/- 61 Mnps 06 StockFishRW_modern_sse42_avx.exe! 8722+/- 57 Mnps 07 StockFishRW_482a_140427_BYO_MC_dev.exe 8710+/- 81 Mnps 08 StockFishRW_modern_sse42.exe! 8685+/- 52 Mnps 09 StockFishRW_140424_473_modern_sse42_avx.exe! 8684+/- 66 Mnps 10 StockFishRW_49a_140427_BYO_MC_dev.exe 8656+/- 41 Mnps 11 StockFishRW_140424_49a_modern_sse42_avx.exe! 8632+/- 42 Mnps 12 StockFishRW_140424_482a_modern_sse42_avx.exe! 8566+/- 79 Mnps 13 StockFishRW_x64.exe! 8499+/- 95 Mnps 14 StockFishRW_140424_473_modern_sse42.exe! 8484+/- 68 Mnps 15 StockFishRW_140424_49a_modern_sse42.exe! 8391+/- 66 Mnps 16 StockFishRW_140424_482a_modern_sse42.exe! 8366+/- 82 Mnps [b]17 stockfish_14042700_x64_modern_sse42.exe (abrok) 8209+/- 56 Mnps

Don't you have enough courtesy to quote author & source of the original post? You copied it from http://talkchess.com/forum/viewtopic.php?t=52140 by krgp (Kiran Panditrao) ... it first appeared at http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=28733;pg=3 by Garricar13 ... It would have been nice on your part if you had mentioned these ...

by