Stockfish 7 beta 1

[zamar]

Stockfish 7 beta 1 is out.

We would kindly ask rating list authors and other interested parties to do test runs with this version and report any encountered issues in this thread.

[Frank Quisinsky]

Hi Joona,

version 02Dec2015 was tested by myself.
2.100 45-minute games can be found under:
Download games by Players.

Stats and comments on my webpage, have a look in my News 240.

I have a lot to do in testing engines, not upto date (working on FCT League 3 = 21 tested engines more).

So, I can't more help.
Clear: I wish the team good luck.

PS:
I am thinking that Contemp 6 or 8 for the final release could be good. Stockfish should stronger avoid draw vs. weaker engines. The main Problem in my Fight for Place 1 vs. Komodo ...

Thanks and all the best to the Stockfish team!

Best
Frank

[tpoppins]

A minor bug report: the engine name is reported as "Stockfish 7Beta1 ..." - a space is missing between "7" and "Beta". Or is that due to some stringent text-string limitations for UCI execs?

[A Distel]

Stockfish 7 beta 1 is out.

We would kindly ask rating list authors and other interested parties to do test runs with this version and report any encountered issues in this thread.

Author: Joona Kiiski
Date: Sun Dec 27 19:36:56 2015 +0000
Timestamp: 1451245016

Stockfish 7 Beta 1

Bench: 8355485

No functional change

!! latest version !!


Stockfish Development Versions are build automatically if there are changes on the master branch in the git repository (https://github.com/official-stockfish/Stockfish). Use it at your own risk.
They are compiled with gcc 4.9.2/mingw on Ubuntu 15.04.
6.Jan.2013: now with link time optimization for windows too.
20.Oct.2013: now using profiling while building. resulting in slightly faster executables.
27.Jun.2014: added compile for haswell cpus.
27.Nov.2014: Syzygy tablebases support added to stockfish.
Read the FAQ or leave a comment.

Windows x64 for Haswell CPUs
Windows x64 for modern computers
Windows x64
Windows 32
Linux x64 for Haswell CPUs
Linux x64 for modern computers
Linux x64

http://abrok.eu/stockfish/

[supersharp77]

Stockfish 7 beta 1 is out.

We would kindly ask rating list authors and other interested parties to do test runs with this version and report any encountered issues in this thread.

Stockfish 7 Beta is out!!....LOOK OUT!!


Thx AR

[mvk]

Stockfish 7 beta 1 is out.

We would kindly ask rating list authors and other interested parties to do test runs with this version and report any encountered issues in this thread.

Thank you. There two bugs seem unsolved in version 7 beta 1.
http://talkchess.com/forum/viewtopic.ph ... 311#650311

Code: Select all

$ wine stockfish_15122720_32bit.exe 
position fen 7k/QQQQR3/2B5/4KN1Q/3QQ3/8/8/4R3 b - - 0 1 
go depth 1
info depth 1 seldepth 1 multipv 1 score mate 5 upperbound nodes 5450456 nps 1815608 hashfull 0 tbhits 0 time 3002 pv h8g8
info depth 1 currmove h8g8 currmovenumber 1
info depth 1 seldepth 1 multipv 1 score mate 5 lowerbound nodes 5450458 nps 1811385 hashfull 0 tbhits 0 time 3009 pv h8g8
info depth 1 currmove h8g8 currmovenumber 1
info depth 1 seldepth 1 multipv 1 score mate 5 lowerbound nodes 5450460 nps 1806582 hashfull 0 tbhits 0 time 3017 pv h8g8
[... infinite loop ...]

Less critical, but hampers evaluation tuning:

Code: Select all

position fen 4KN2/8/3k4/8/8/6r1/8/8 b - - 0 1 
go
info depth 1 seldepth 1 multipv 1 score cp 29 nodes 26 nps 26000 tbhits 0 time 1 pv g3g1
info depth 2 seldepth 2 multipv 1 score cp 4434 nodes 112 nps 16000 tbhits 0 time 7 pv g3g7 f8d7
bestmove g3g7 ponder f8d7
go depth 6
info depth 1 seldepth 1 multipv 1 score cp 4434 nodes 21 nps 21000 tbhits 0 time 1 pv g3g7
info depth 2 seldepth 2 multipv 1 score cp 4434 nodes 50 nps 8333 tbhits 0 time 6 pv g3g7 f8d7
info depth 3 seldepth 3 multipv 1 score cp 34 nodes 103 nps 10300 tbhits 0 time 10 pv g3g7 e8d8 g7g1
info depth 4 seldepth 4 multipv 1 score cp 4434 nodes 138 nps 10615 tbhits 0 time 13 pv g3g7 e8d8 g7g1 f8g6 g1g6
info depth 5 seldepth 5 multipv 1 score cp 4434 nodes 173 nps 10176 tbhits 0 time 17 pv g3g7 e8d8 g7g1 f8g6 g1g6
info depth 6 seldepth 7 multipv 1 score cp 34 nodes 1112 nps 48347 tbhits 0 time 23 pv g3g7 e8d8 g7a7 d8e8 a7e7 e8d8 e7g7
bestmove g3g7 ponder e8d8

I suggest not to prune that way near the tips of the PV.

[zamar]

Issue #2 is just normal behaviour.

Issue #1 is a real issue though. I've recorded it in our issue tracker:
https://github.com/official-stockfish/S ... issues/544

It's not of high priority, because position is highly artificial, but we'll fix it at some point...

Thanks for reporting.

[FriedmannC]

Is it lazy version? Because if it is, it will have no chance against Komodo and thus will never win the TCEC chess engine contest... Best regards!

[IWB]

Stockfish 7 beta 1 is out.

We would kindly ask rating list authors and other interested parties to do test runs with this version and report any encountered issues in this thread.

I played 1106 games with IPON conditions (Ponder on) without any problem (the version from 151031 was crashing) I assume that problem is fixed. I am waiting for the final release

• SF7B1
  
  Stockfish 7B1 - Komodo 9.2 (3216) 45.0 - 29.0 60.81% Perf=3292
  Stockfish 7B1 - Houdini 4 (3125) 55.5 - 18.5 75.00% Perf=3315
  Stockfish 7B1 - Gull 3 (3074) 54.0 - 20.0 72.97% Perf=3246
  Stockfish 7B1 - Ginkgo 1.5 (3014) 61.5 - 12.5 83.11% Perf=3290
  Stockfish 7B1 - Equinox 3.30 (3003) 53.0 - 21.0 71.62% Perf=3163
  Stockfish 7B1 - Fritz 15 (3002) 54.0 - 20.0 72.97% Perf=3174
  Stockfish 7B1 - Critter 1.6a (2993) 58.5 - 15.5 79.05% Perf=3223
  Stockfish 7B1 - Protector 1.9.0 (2942) 60.5 - 13.5 81.76% Perf=3202
  Stockfish 7B1 - Nirvanachess 2.2 (2923) 60.0 - 14.0 81.08% Perf=3175
  Stockfish 7B1 - Andscacs 0.84 (2917) 61.5 - 12.5 83.11% Perf=3193
  Stockfish 7B1 - Jonny 7.01 (2902) 59.0 - 15.0 79.73% Perf=3139
  Stockfish 7B1 - Texel 1.05 (2892) 60.0 - 13.0 82.19% Perf=3157
  Stockfish 7B1 - Chiron 2 (2889) 60.5 - 12.5 82.88% Perf=3162
  Stockfish 7B1 - Hannibal 1.4b (2867) 62.5 - 10.5 85.62% Perf=3176
  Stockfish 7B1 - Naum 4.6 (2867) 64.5 - 8.5 88.36% Perf=3219
  870.0 - 236.0 78.66% Perf=3201
  
  
  1106 out of 3300 games played

Bye
Ingo

[fastgm]

Stockfish 7 Beta 1 - Komodo 9.3, 1 thread, 256 MB Hash, 3 minutes + 3 seconds, default settings, ponder off, cutechess-cli

No issues!

Code: Select all

    Program                  Elo    +   -   Games   Score   Av.Op.  Draws
 --------------------------------------------------------------------------
  1 Stockfish 7 Beta 1 T1  : 3016   11  11  1528    54.6 %   2984   61.5 %
  2 Komodo 9.3 T1          : 2984   11  11  1528    45.4 %   3016   61.5 %
 

Wins   = 364
Draws  = 940
Losses = 224
Av.Op. Elo = 3000
 
Result     : 834.0/1528 (+364,=940,-224)
Perf.      : 54.6 %
Margins    :
 68 %      : (+  0.8,-  0.8 %) -> [ 53.8, 55.4 %]
 95 %      : (+  1.5,-  1.5 %) -> [ 53.0, 56.1 %]
 99.7 %    : (+  2.3,-  2.3 %) -> [ 52.2, 56.9 %]
 
Elo        : 3032
Margins    :
 68 %      : (+  5,-  5) -> [3026,3037]
 95 %      : (+ 11,- 11) -> [3021,3043]
 99.7 %    : (+ 16,- 16) -> [3016,3048]
 

Games        :   1528 (finished)
 
White Wins   :    385 (25.2 %)
Black Wins   :    203 (13.3 %)
Draws        :    940 (61.5 %)
 
White Perf.  : 56.0 %
Black Perf.  : 44.0 %
 

Individual statistics:
 
1 Stockfish 7 Beta 1 T1  : 3016  1528 (+364,=940,-224), 54.6 %
2 Komodo 9.3 T1          : 2984  1528 (+224,=940,-364), 45.4 %