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New 6-piece tablebases
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Ronald de Man



Joined: 28 Feb 2012
Posts: 3786

PostPost subject: Re: New 6-piece tablebases    Posted: Mon Sep 02, 2013 10:24 pm Reply to topic Reply with quote

Kirill Kryukov wrote:
syzygy wrote:
Kirill Kryukov wrote:
You mention Stockfish integration on your page, is the complete source or Windows binary of this engine available?

Jean-Francois Romang compiled a binary and has the source on github (see earlier in this thread), but I don't think this is the latest version.

I recently created a github repository with the complete Stockfish source and integrated probing code:
https://github.com/syzygy1/Stockfish

It requires the setting of environment variables RTBWDIR and RTBZDIR with the paths to .rtbw and .rtbz files. I suppose it would be nicer if uci options were used instead.

The present version uses the WDL tables during the search. Once the game has reached a tablebase position, it uses the DTZ tables to select "good moves" (that preserve the win under the 50-move rule or preserve the draw or might convert a loss into a 50-move draw with suboptimal play from the opponent) and lets the engine do a search on those without acccessing the tables. The resulting game play is much nicer than when playing "DTZ-optimal". It also has a better chance of converting a draw into a win.

I do not exclude that some bugs are left, so if anyone tests this and has problems, just let me know.

The present version is not very suitable for simply probing the tables from the GUI to see if a position is a win or loss. Once you give the engine a tablebase position, it will do a search on the "good moves" and report a score found by searching. To solve this I could make an option to switch between DTZ-optimal play and the present approach, but it is not a very nice solution.

Hi Ronald,

Can you integrate your TB code with Stockfish 4? I am thinking to run some tests to compare it with regular Stockfish 4, because I suspect the Elo gain may be larger than that from Nalimov's or other tablebases (which is hardly measurable).

Thanks,
Kirill

I've updated to the latest sources and created a tag "sf_4_tb".
To get Stockfish 4 with my changes the following should work:
Code:
$ git clone https://github.com/syzygy1/Stockfish.git
$ cd Stockfish
$ git checkout sf_4_tb

or just use this link: https://github.com/syzygy1/Stockfish/archive/sf_4_tb.zip

Note that this is unsupported.
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https://github.com/syzygy1/tb
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Subject Author Date/Time
New 6-piece tablebases Ronald de Man Mon Apr 01, 2013 10:03 pm
      Re: New 6-piece tablebases Oscar Toledo G. Fri Apr 05, 2013 3:46 am
      Re: New 6-piece tablebases Lucas Braesch Fri Apr 05, 2013 5:14 am
            Re: New 6-piece tablebases Ronald de Man Fri Apr 05, 2013 7:09 pm
                  Re: New 6-piece tablebases Lucas Braesch Sat Apr 06, 2013 12:56 am
                        Re: New 6-piece tablebases Ronald de Man Sat Apr 06, 2013 2:57 am
                        Re: New 6-piece tablebases Don Dailey Sun Jun 16, 2013 1:04 pm
                              Re: New 6-piece tablebases Ronald de Man Sun Jun 16, 2013 1:43 pm
                                    Re: New 6-piece tablebases Don Dailey Sun Jun 16, 2013 2:23 pm
                                          Re: New 6-piece tablebases Ronald de Man Sun Jun 16, 2013 3:06 pm
                                                Re: New 6-piece tablebases Don Dailey Sun Jun 16, 2013 3:26 pm
                                                      Re: New 6-piece tablebases Ronald de Man Sun Jun 16, 2013 4:55 pm
                                                            Re: New 6-piece tablebases Don Dailey Sun Jun 16, 2013 6:19 pm
                                                                  Re: New 6-piece tablebases Ronald de Man Sun Jun 16, 2013 7:54 pm
                                                                        Re: New 6-piece tablebases Don Dailey Mon Jun 17, 2013 12:21 am
                                                                              Re: New 6-piece tablebases Joshua Shriver Wed Mar 02, 2016 3:16 pm
      Re: New 6-piece tablebases Martin Sedlak Fri Apr 05, 2013 8:01 am
            Re: New 6-piece tablebases Ronald de Man Fri Apr 05, 2013 8:00 pm
      Re: New 6-piece tablebases Richard Vida Fri Apr 05, 2013 11:57 am
            Re: New 6-piece tablebases Ronald de Man Fri Apr 05, 2013 9:03 pm
                  Re: New 6-piece tablebases Ahmed Mansoor Mon Aug 12, 2013 9:47 am
                        Re: New 6-piece tablebases Ahmed Mansoor Fri Aug 16, 2013 8:13 am
      Re: New 6-piece tablebases Álvaro Begué Fri Apr 05, 2013 2:11 pm
            Re: New 6-piece tablebases H.G.Muller Fri Apr 05, 2013 2:17 pm
      Re: New 6-piece tablebases Robert Houdart Sat Apr 06, 2013 3:25 pm
            Re: New 6-piece tablebases Daniel Shawul Sat Apr 06, 2013 4:02 pm
                  Re: New 6-piece tablebases Robert Houdart Sat Apr 06, 2013 5:54 pm
                        Re: New 6-piece tablebases Daniel Shawul Sat Apr 06, 2013 6:31 pm
                              Re: New 6-piece tablebases Robert Houdart Sat Apr 06, 2013 6:46 pm
                                    Re: New 6-piece tablebases Daniel Shawul Sat Apr 06, 2013 6:54 pm
                                          Re: New 6-piece tablebases Robert Houdart Sat Apr 06, 2013 11:04 pm
            Re: New 6-piece tablebases Ronald de Man Sat Apr 06, 2013 4:37 pm
                  Re: New 6-piece tablebases Robert Houdart Sat Apr 06, 2013 5:55 pm
      Re: New 6-piece tablebases Ronald de Man Sun Apr 07, 2013 11:19 pm
      Re: New 6-piece tablebases Joshua Shriver Mon Apr 08, 2013 2:51 pm
            Re: New 6-piece tablebases Ronald de Man Mon Apr 08, 2013 7:17 pm
                  Re: New 6-piece tablebases Joshua Shriver Mon Apr 08, 2013 7:22 pm
                        Re: New 6-piece tablebases Ronald de Man Mon Apr 08, 2013 8:19 pm
                        Re: New 6-piece tablebases Sven Schüle Mon Apr 08, 2013 8:34 pm
                              Re: New 6-piece tablebases Joshua Shriver Mon Apr 08, 2013 8:42 pm
                                    Re: New 6-piece tablebases Tano-Urayoan Russi Roman Thu Apr 11, 2013 5:27 pm
                                          Re: New 6-piece tablebases Joshua Shriver Fri Apr 12, 2013 12:28 am
                              Re: New 6-piece tablebases Ronald de Man Mon Apr 08, 2013 8:58 pm
                  Re: New 6-piece tablebases Joshua Shriver Mon Apr 08, 2013 7:23 pm
                        Re: New 6-piece tablebases Ronald de Man Mon Apr 08, 2013 8:27 pm
      Re: New 6-piece tablebases Joshua Shriver Tue Apr 09, 2013 4:45 am
            Re: New 6-piece tablebases Ronald de Man Tue Apr 09, 2013 7:40 am
            Re: New 6-piece tablebases Ronald de Man Tue Apr 09, 2013 8:04 am
            Re: New 6-piece tablebases Ronald de Man Wed Apr 10, 2013 12:29 am
      Re: New 6-piece tablebases Alexander Zacharias Tue Apr 09, 2013 6:10 pm
            Re: New 6-piece tablebases Matthew R. Brades Tue Apr 09, 2013 8:07 pm
                  Re: New 6-piece tablebases Alexander Zacharias Tue Apr 09, 2013 10:41 pm
                        Re: New 6-piece tablebases Ronald de Man Wed Apr 10, 2013 12:35 am
                              Re: New 6-piece tablebases Evert Glebbeek Wed Apr 10, 2013 7:20 am
                                    Re: New 6-piece tablebases Ronald de Man Wed Apr 10, 2013 11:53 am
                                          Re: New 6-piece tablebases Evert Glebbeek Wed Apr 10, 2013 1:22 pm
                                                Re: New 6-piece tablebases Ronald de Man Wed Apr 10, 2013 6:51 pm
                              Re: New 6-piece tablebases Gerd Isenberg Wed Apr 10, 2013 4:13 pm
                                    Re: New 6-piece tablebases Ronald de Man Wed Apr 10, 2013 6:55 pm
                                          Re: New 6-piece tablebases Gerd Isenberg Wed Apr 10, 2013 7:55 pm
            Re: New 6-piece tablebases Ronald de Man Tue Apr 09, 2013 10:44 pm
      Re: New 6-piece tablebases Steve Mulligan Sat Apr 13, 2013 2:23 pm
            Re: New 6-piece tablebases Ronald de Man Sat Apr 13, 2013 3:54 pm
                  Re: New 6-piece tablebases Steve Mulligan Sat Apr 13, 2013 5:18 pm
                        Re: New 6-piece tablebases Miguel A. Ballicora Sat Apr 13, 2013 5:38 pm
                        Re: New 6-piece tablebases Ronald de Man Sat Apr 13, 2013 6:28 pm
                              Re: New 6-piece tablebases H.G.Muller Sat Apr 13, 2013 8:40 pm
                                    Re: New 6-piece tablebases Uri Blass Tue Apr 16, 2013 12:30 am
                                          Re: New 6-piece tablebases Uri Blass Tue Apr 16, 2013 12:44 am
                                          Re: New 6-piece tablebases H.G.Muller Tue Apr 16, 2013 6:33 am
                              Re: New 6-piece tablebases Steve Mulligan Sat Apr 13, 2013 9:12 pm
                  Re: New 6-piece tablebases Miguel A. Ballicora Sat Apr 13, 2013 5:26 pm
                  Re: New 6-piece tablebases Ben Nye Sun Apr 14, 2013 7:43 pm
                        Re: New 6-piece tablebases Ronald de Man Sun Apr 14, 2013 8:45 pm
                              Re: New 6-piece tablebases Ben Nye Tue Apr 16, 2013 4:32 pm
                                    Re: New 6-piece tablebases Ronald de Man Tue Apr 16, 2013 6:48 pm
                                          Re: New 6-piece tablebases Ben Nye Wed Apr 17, 2013 11:26 pm
      Re: New 6-piece tablebases Ronald de Man Mon Apr 15, 2013 11:14 pm
            Re: New 6-piece tablebases Joshua Shriver Tue Apr 16, 2013 4:23 pm
                  Re: New 6-piece tablebases Ronald de Man Tue Apr 16, 2013 6:47 pm
                        Re: New 6-piece tablebases Rein Halbersma Wed Jan 04, 2017 11:43 am
                              Re: New 6-piece tablebases Ronald de Man Wed Jan 04, 2017 9:23 pm
                                    Re: New 6-piece tablebases Bojun Guo Thu Jan 05, 2017 1:24 am
                                          Re: New 6-piece tablebases Joshua Shriver Wed Jan 11, 2017 7:18 am
                                                Re: New 6-piece tablebases daniel jose Wed Jan 11, 2017 2:12 pm
            Re: New 6-piece tablebases Ronald de Man Thu Apr 25, 2013 5:56 pm
      Re: New 6-piece tablebases Jean-Francois Romang Sat Apr 27, 2013 4:21 pm
            Re: New 6-piece tablebases Jean-Francois Romang Sun Apr 28, 2013 10:08 am
                  Re: New 6-piece tablebases Vael Jean-Paul Sun Apr 28, 2013 12:26 pm
                        Re: New 6-piece tablebases Jean-Francois Romang Sun Apr 28, 2013 12:50 pm
                              Re: New 6-piece tablebases Vael Jean-Paul Sun Apr 28, 2013 12:58 pm
                                    Re: New 6-piece tablebases Vael Jean-Paul Sun Apr 28, 2013 1:15 pm
                                          Re: New 6-piece tablebases Michel Van den Bergh Sun Apr 28, 2013 2:48 pm
                        Re: New 6-piece tablebases Jean-Francois Romang Sun Apr 28, 2013 12:54 pm
                  Re: New 6-piece tablebases Adam Hair Sun Apr 28, 2013 3:46 pm
                        Re: New 6-piece tablebases Adam Hair Sun Apr 28, 2013 4:00 pm
      Re: New 6-piece tablebases Marek Soszynski Sun Jun 16, 2013 6:22 am
      Re: New 6-piece tablebases Kirill Kryukov Tue Jun 18, 2013 8:25 am
            Re: New 6-piece tablebases Ronald de Man Tue Jun 18, 2013 9:18 am
                  Re: New 6-piece tablebases Vael Jean-Paul Sun Aug 04, 2013 6:58 pm
                        Re: New 6-piece tablebases Vael Jean-Paul Mon Aug 05, 2013 5:45 pm
                              Re: New 6-piece tablebases Vael Jean-Paul Mon Aug 12, 2013 9:41 am
                  Re: New 6-piece tablebases Kirill Kryukov Wed Aug 21, 2013 1:06 am
                        Re: New 6-piece tablebases Ronald de Man Thu Aug 22, 2013 1:34 pm
                              Re: New 6-piece tablebases Kirill Kryukov Thu Aug 22, 2013 1:47 pm
                              Re: New 6-piece tablebases Ahmed Mansoor Fri Aug 23, 2013 7:22 am
                                    Re: New 6-piece tablebases Ronald de Man Fri Aug 23, 2013 2:29 pm
                                          Re: New 6-piece tablebases Ahmed Mansoor Fri Aug 23, 2013 5:47 pm
                        Re: New 6-piece tablebases Ronald de Man Mon Sep 02, 2013 10:24 pm
                              Re: New 6-piece tablebases Ahmed Mansoor Tue Sep 03, 2013 5:30 pm
                                    Re: New 6-piece tablebases Joshua Shriver Wed Sep 04, 2013 3:28 am
                              Re: New 6-piece tablebases Kirill Kryukov Tue Sep 03, 2013 11:17 pm
                                    Re: New 6-piece tablebases Rob Nicholas Thu Sep 12, 2013 2:32 am
                                          Re: New 6-piece tablebases Kirill Kryukov Thu Sep 12, 2013 3:31 am
                                                Re: New 6-piece tablebases Rob Nicholas Thu Sep 12, 2013 11:20 am
                                                      Re: New 6-piece tablebases Kirill Kryukov Thu Sep 12, 2013 11:50 am
                                                            Re: New 6-piece tablebases Ronald de Man Thu Sep 12, 2013 6:08 pm
                                                                  Re: New 6-piece tablebases Kirill Kryukov Thu Sep 12, 2013 11:39 pm
                                                                        Re: New 6-piece tablebases Rob Nicholas Fri Sep 13, 2013 1:24 am
                                                                              Re: New 6-piece tablebases Ronald de Man Sat Sep 14, 2013 2:27 am
                                                                                    Re: New 6-piece tablebases Kirill Kryukov Sat Sep 14, 2013 2:52 am
                                                                                    Re: New 6-piece tablebases Ahmed Mansoor Sat Sep 14, 2013 7:26 am
                                                                                    Re: New 6-piece tablebases Paul Henri Tue Sep 17, 2013 8:38 pm
                                                                                          Re: New 6-piece tablebases Paul Henri Tue Sep 17, 2013 9:18 pm
                                                                                          Re: New 6-piece tablebases Ronald de Man Wed Sep 18, 2013 1:08 am
                                                                                          Re: New 6-piece tablebases Paul Henri Wed Sep 18, 2013 6:34 pm
                                                                                          Re: New 6-piece tablebases Ronald de Man Wed Sep 18, 2013 7:24 pm
                                                                                          Re: New 6-piece tablebases Paul Henri Wed Sep 18, 2013 8:24 pm
                                                                                          Re: New 6-piece tablebases Ronald de Man Thu Sep 19, 2013 12:50 am
                                                                                          Re: New 6-piece tablebases Ahmed Mansoor Sun Sep 22, 2013 7:36 am
                                                                                          Re: New 6-piece tablebases Roberto Possioto Sun Sep 22, 2013 10:40 am
                                                                                          Re: New 6-piece tablebases Ahmed Mansoor Sun Sep 22, 2013 12:37 pm
                                                                                          Re: New 6-piece tablebases Paul Henri Mon Sep 23, 2013 2:44 pm
                                                                                          Re: New 6-piece tablebases Paul Henri Mon Sep 23, 2013 4:39 pm
                                                                                          Re: New 6-piece tablebases Marek Soszynski Mon Sep 23, 2013 4:50 pm
                                                                                          Re: New 6-piece tablebases Vincent Lejeune Mon Sep 23, 2013 5:50 pm
                                                                                          Re: New 6-piece tablebases Edmund Moshammer Mon Sep 23, 2013 6:11 pm
                                                                                          Re: New 6-piece tablebases jose mº velasco Mon Sep 23, 2013 7:01 pm
                                                                                          Re: New 6-piece tablebases Vincent Lejeune Mon Sep 23, 2013 7:02 pm
                                                                                          Re: New 6-piece tablebases Ronald de Man Mon Sep 23, 2013 7:44 pm
                                                                                          Re: New 6-piece tablebases Ronald de Man Mon Sep 23, 2013 7:51 pm
                                                                                          Re: New 6-piece tablebases Rob Nicholas Mon Sep 23, 2013 8:48 pm
                                                                                          Re: New 6-piece tablebases Ronald de Man Mon Sep 23, 2013 10:43 pm
                                                                                          Re: New 6-piece tablebases Rob Nicholas Mon Sep 23, 2013 11:59 pm
                                                                                          Re: New 6-piece tablebases Ronald de Man Tue Sep 24, 2013 12:10 am
                                                                                          Re: New 6-piece tablebases Shivkumar Shivaji Tue Sep 24, 2013 3:17 am
                                                                                          Re: New 6-piece tablebases Roberto Possioto Tue Sep 24, 2013 9:26 am
                                                                                          Re: New 6-piece tablebases Paul Henri Mon Sep 23, 2013 7:29 pm
      Re: New 6-piece tablebases robert jones Sat Aug 24, 2013 1:18 am
            Re: New 6-piece tablebases Ronald de Man Sat Aug 24, 2013 11:06 am
                  Re: New 6-piece tablebases H.G.Muller Sat Aug 24, 2013 12:53 pm
                        Re: New 6-piece tablebases Ronald de Man Sun Aug 25, 2013 1:02 am
                              Re: New 6-piece tablebases Kirill Kryukov Sun Aug 25, 2013 9:32 am
                  Re: New 6-piece tablebases Roberto Possioto Sat Aug 31, 2013 2:09 pm
                        Re: New 6-piece tablebases Ronald de Man Sat Aug 31, 2013 2:15 pm
                              Re: New 6-piece tablebases Roberto Possioto Sat Aug 31, 2013 3:19 pm
                                    Re: New 6-piece tablebases Ronald de Man Sat Aug 31, 2013 3:32 pm
      Re: New 6-piece tablebases Kirill Kryukov Mon Aug 26, 2013 10:19 am
            Re: New 6-piece tablebases Ronald de Man Wed Aug 28, 2013 11:18 pm
                  Re: New 6-piece tablebases Kirill Kryukov Thu Aug 29, 2013 11:09 am
                  Re: New 6-piece tablebases Kirill Kryukov Wed Sep 11, 2013 6:55 am
                        Re: New 6-piece tablebases Joshua Shriver Wed Sep 11, 2013 7:19 am
                              Re: New 6-piece tablebases Kirill Kryukov Wed Sep 11, 2013 7:50 am
                                    Re: New 6-piece tablebases Joshua Shriver Wed Sep 11, 2013 7:56 am
                                          Re: New 6-piece tablebases Kirill Kryukov Wed Sep 11, 2013 8:01 am
                                          Re: New 6-piece tablebases Vael Jean-Paul Wed Sep 11, 2013 8:05 am
                                                Re: New 6-piece tablebases Joshua Shriver Wed Sep 11, 2013 8:12 am
                                                      Re: New 6-piece tablebases Roberto Possioto Wed Sep 11, 2013 8:55 am
                                          Re: New 6-piece tablebases Bajusz Tamás Wed Sep 11, 2013 1:50 pm
      Re: New 6-piece tablebases Joshua Shriver Tue Sep 03, 2013 5:12 pm
            Re: New 6-piece tablebases Roberto Possioto Tue Sep 03, 2013 5:45 pm
            Re: New 6-piece tablebases Norman Schmidt Tue Sep 03, 2013 5:45 pm
                  Re: New 6-piece tablebases Ahmed Mansoor Tue Sep 03, 2013 6:31 pm
                        Re: New 6-piece tablebases Norman Schmidt Tue Sep 03, 2013 7:54 pm
                              Re: New 6-piece tablebases Kirill Kryukov Wed Sep 04, 2013 6:23 am
                                    Re: New 6-piece tablebases Ahmed Mansoor Wed Sep 04, 2013 10:56 am
                  Re: New 6-piece tablebases Kirill Kryukov Tue Sep 03, 2013 11:20 pm
            Re: New 6-piece tablebases Paul Henri Tue Sep 10, 2013 6:05 pm
                  Re: New 6-piece tablebases Vincent Lejeune Wed Sep 11, 2013 10:12 am
                        Re: New 6-piece tablebases Kirill Kryukov Wed Sep 11, 2013 10:59 am
                              Re: New 6-piece tablebases Vincent Lejeune Wed Sep 11, 2013 11:21 am
                                    Re: New 6-piece tablebases Joshua Shriver Wed Sep 11, 2013 11:24 am
      Re: New 6-piece tablebases Joshua Shriver Wed Sep 04, 2013 3:35 am
            Re: New 6-piece tablebases Ahmed Mansoor Wed Sep 04, 2013 11:47 am
                  Re: New 6-piece tablebases Ronald de Man Wed Sep 04, 2013 12:10 pm
                        Re: New 6-piece tablebases Ahmed Mansoor Wed Sep 04, 2013 12:33 pm
      Re: New 6-piece tablebases Edmund Moshammer Wed Sep 25, 2013 6:42 pm
            Re: New 6-piece tablebases Ronald de Man Wed Sep 25, 2013 8:48 pm
      Re: New 6-piece tablebases: missing statistics Guy Haworth Wed Mar 02, 2016 3:13 pm
            Re: New 6-piece tablebases: missing statistics jose mº velasco Wed Mar 02, 2016 3:51 pm
                  Re: New 6-piece tablebases: missing statistics Guy Haworth Wed Mar 02, 2016 9:07 pm
            Re: New 6-piece tablebases: missing statistics Guy Haworth Mon Mar 07, 2016 11:24 am
      Re: New 6-piece tablebases Ed Trice Sat Jan 07, 2017 4:01 am
            Re: New 6-piece tablebases Michael B Wed Jan 11, 2017 2:47 am
                  Re: New 6-piece tablebases Joshua Shriver Wed Jan 11, 2017 7:15 am
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