CCRL 40/40
Downloads and Statistics
August 19, 2017
Testing summary:
Total: 734'415 games
played by 1'919 programs
100606 CPU days (X2 4600+)

White wins: 252'646 (34.4%)
Black wins: 187'707 (25.6%)
Draws: 294'062 (40.0%)
White score: 54.4%

Thanks

Contributors

Following people submitted games to CCRL 40/40 database: Graham Banks, Charles Smith, Shaun Brewer, Aser Huerga, Ray Banks, Nathan Russell, Kirill Kryukov, Sarah Bird, George Speight, Martin Thoresen, Thomas Logan, Chris Taylor, Andreas Schwartmann, Chuck Wilson, Brent Magnusson, Adam Hair, Luis Smith, Gabor Szots, Wassim Saeed.

Kirill Kryukov and Shaun Brewer automated statistical analysis and designed the web-site, with lot of useful feedback from other team members.

Shaun Brewer, Ray Banks and Kirill Kryukov maintained the game database and published updates.

Authors of chess software we used

We want to thank Martin Blume for creating Arena - a great free chess interface. We also want to thank Matthias Gemuh for creating ChessGUI - another great free chess interface. We also used commercial interfaces: Chessbase interfaces, Shredder GUI by Stefan Mayer-Kahlen and Engine Research Tool by Lokasoft.

Odd Gunnar Malin made very useful adapters Wb2Uci and InBetween.

Eugene Nalimov and Andrew Kadatch created "Nalimov Tablebases". Daniel Shawul created Scorpio bitbases. Miguel Ballicora created Gaviota tablebases. We also thank members of EGTB Online project for making those endgame tablebases freely available online.

We are grateful to Harry Schnapp, Sedat Canbaz, Wael Deeb, Christopher Conkie, Arturo Ochoa, Jeroen Noomen, Mike Scheidl for creating high quality opening books we used in testing.

Most of all we would like to thank developers of all the chess engines we tested: Mikko Aarnos, Enrique Sanchez Acosta, Richard Allbert, Peter Alloysius, Leen Ammeraal, Jeffrey An, Michael An, Volker Annus, Volker Annuss, Daniel Anulliero, Edsel Apostol, Stan Arts, Ivan Bacigal, Miguel Ballicora, Amir Ban, Christian Barreteau, Steffen Basting, Aaron Becker, Alvaro Begue, Marco Belli, Abel Belzunces, Ryan Benitez, Casper W. Berg, John Bergbom, Michel Van den Bergh, Aart Bik, Norman Blais, Uri Blass, Fonzy Bluemers, Volker Bohm, Ivan Bonkin, Michael Borgstadt, Borko Boskovic, Ross Boyd, Dan Ravensloft, formerly Matthew Brades, Lucas Braesch, Oliver Brausch, Sander Maassen vd Brink, Jan Brouwer, Alex Brunetti, Martin Bryant, Dieter Buerssner, Romain Burgot, Shay Bushinsky, Vadim Bykov, Carlos del Cacho, Giuseppe Cannella, Pedro Castro, Fabio Cavicchio, Ma Chao, Manik Charan, Shawn Chidester, Vadim Chizhov, Piotr Cichy, Philipp Classen, Federico Corigliano, Marco Costalba, Anthony Cozzie, Stuart Cracraft, David Dahlem, Don Dailey, Martin Danielsson, Jon Dart, Richard Delorme, Vadim Demichev, Antonio Dieguez, Dusan Dobes, Mike Dokken, Chrilly Donninger, Patrice Duhamel, Michael Dvorkin, Philippe Fabiani, Andrew Fan, Ubaldo Farina, Peter Fendrich, Helmut Fett, Martin Fierz, Guillermo Filia, Sune Fischer, Tim Foden, Chris Formula, Josue Forte, Dr Colin Frayn, Klaus Friedel, Philippe Gailhac, Thomas Gaksch, Jose Carlos Martinez Galan, Dr. Onno Garms, Scott Gasch, Oscar Gavira, Matthias Gemuh, Mincho Georgiev, George Georgopoulos, Lukas Geyer, Salvatore Giannotti, Martin Giepmans, Matthew Gingell, Marco Giusfredi, Evert Glebbeck, Fabio Gobbato, Andrew Grant, Fritz Grau, Thorsten Greiner, Andrea Griffini, Neels Groenewald, Denis Gruzdev, Christian Guenther, Gabriel Guillory, Bas Hamstra, Gunnar Harms, Tony Hecker, Raimund Heid, Luca Hemmerich, Andreas Herrmann, Folkert van Heusden, Michael Hoffmann, Dan Homan, Dan Honeycutt, Peter Horvath, Robert Houdart, Rudolf Huber, Nguyen Viet Huy, Robert Hyatt, Nicu Ionita, Miguel Izquierdo, Colin Jenkins, Harald Johnsen, Christophe Jolly, Ben-Hur Carlos Langoni Junior, Pradu Kannan, Francois Karr, Jean-Philippe Karr, Larry Kaufman, Marcel van Kervinck, Niyaz Khasanov, Joona Kiiski, Tom King, Jan Klima, Janne Kokkala, Marek Kolacz, Thomas Kolarik, Chua Kong-Sian, Johan de Koning, Roman Korba, Alexey Korneychuk, Evgeniy Korniloff, Igor Korshunov, Tim Kosse, Pawel Koziol, Jonathan Kreuzer, Sylvain Lacombe, Matthew Lai, Andrea Lanza, Mark Lefler, Fabien Letouzey, Zong Zheng Li, Tom Likens, Jose Andres Morales Linares, Jacob Bors Lind, Anton Lindenmair, Gary Linscott, Dominique Longbien, Stephen Lovell, Bruno Lucas, Erik Madsen, Ivan Maklyakov, Stefano Malloggi, Edoardo Manino, Andres Manzanares, Eric Marathee, Julien Marcel, Sergei Markoff, Mariusz Marszalkowski, Youri Matiounine, Srdja Matovic, Steve Maughan, Anton Maydell, Thomas Mayer, Matt McKnight, Vladimir Medvedev, Daniel Mehrmann, Johan Melin, Maxim Melnikov, Marco Meloni, John Merlino, Sergey Meus, Stefan Meyer-Kahlen, Tomasz Michniewski, Helge Milde, Anastasios Milikas, Maurizio Monge, Chris Moreton, Alex Morozov, Dmitry Morozov, Ferdinand Mosca, Edmund Moshamer, Alexandru Mosoi, H.G. Muller, Roberto Munter, Ron Murawski, Aleksandar Naumov, Pallav Nawani, Sergei Nefedov, Rian Neogi, Jens Baek Nielsen, Jesper Nielsen, Phokham Nonava, Eric Oldre, Lourenco Oliveira, Jury Osipov, Peter Osterlund, Felipe Otaviano, Mathieu Page, Marco Pagnoncelli, Rahman Paidar, Salvador Pallares, Marco Pampaloni, Gian-Carlo Pascutto, Arkadiusz Paterek, Lance Perkins, Maciej Pestka, Jonatan Pettersson, Thomas Petzke, Jochen Peussner, Roland Pfister, Ilari Pihlajisto, Richard Pijl, Mateusz Luksik, Poland, Robert Pope, Marcus Prewarski, Teemu Pudas, Daniel Jose Queralto, David Rabel, Vasik Rajlich, David Rasmussen, Fritz Reul, Luigi Ripamonti, Charles Roberson, Nicolas Robert, Jean-Francois Romang, Tord Romstad, Toma Roncevic, Benjamin Rosseaux, Jaime Benito de Valle Ruiz, Maurizio Sambati, Juan Benitez Sanchez, Alberto Sanjuan, Aleksandrs Saveljevs, Dennis Sceviour, Ralf Schaefer, Ralf Schafer, Norman Schmidt, Frank Schneider, Ed Schroder, Sven Schuele, Sven Schule, Alcides Schulz, Alessandro Scotti, Martin Sedlak, Vince Sempronio, Antonio Senatore, Fermin Serrano, Daniel Shawul, Michael Sherwin, Allard Siemelink, Will Singleton, Kai Skibbe, Christian Sommerfeld, Daniel Sparks, Vlad Stamate, John Stanback, Roland Stuckardt, Johanes Suhardjo, Steen Suurballe, James Swafford, Werner Taelemans, Robert Taylor, Franck Tempet, Fernando Tenorio, Christophe Theron, Nathan Thom, Krasimir Topchiyski, Antonio Torrecillas, Eric Triki, Alexander Turikov, Ulrich Turke, Mark Uniacke, Paul Villanueva Urquijo, Engin Ustun, Oliver Uwira, Per-Ola Valfridsson, Andres Valverde, Juan Manuel Vazquez, Pablo Vazquez, Jose M Velasco, Stephan Vermeire, Richard Vida, Tom Vijlbrief, Luigino Viscione, Simon Waters, Zach Wegner, David Weller, Daniel White, Andrew Williams, Dan Wulff, Kelvin Yang, Dragan Zdravkovic, Franck Zibi, Stefan Zipproth, Roger Zuehlsdorf, Johannes Zwanzger.

Software we used for database management, statistics, game analysis, web-site publishing and communication

We want to thank Remi Coulom for creating a wonderful tool Bayeselo. We use it to compute our rating lists, LOS figures and performances.

David J. Barnes created PGN Extract which we use to perform opening classification of our game database.

Our statistics and processing is automated using Perl language, particularly ActivePerl distribution.

We used following great software for file and database management:

Other incredibly useful free software we use every day:



Created in 2005-2013 by CCRL team
Last games added on August 19, 2017