CCRL 40/40
Downloads and Statistics
December 14, 2019
Testing summary:
Total: 1'105'634 games
played by 2'577 programs
151171 CPU days (X2 4600+)

White wins: 383'085 (34.6%)
Black wins: 284'446 (25.7%)
Draws: 438'103 (39.6%)
White score: 54.5%

Thanks

Hosting Assistance

We would like to thank Anton Mihailov at Chessdom for providing us with an excellent web-hosting solution via Superhosting.bg

Contributors

Following people submitted games to CCRL 40/40 database: Graham Banks, Tirsa Poppins, Charles Smith, Shaun Brewer, Aser Huerga, Ray Banks, Nathan Russell, Kirill Kryukov, Sarah Bird, George Speight, Martin Thoresen, Gabor Szots, Thomas Logan, Volodymyr Shcherbyna, Sergio Martinez, Chris Taylor, Andreas Schwartmann, Chuck Wilson, Brent Magnusson, Adam Hair, Luis Smith, Greg Strong, 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, Mike Adams, Richard Allbert, Peter Alloysius, Rasmus Althoff, Leen Ammeraal, Jeffrey An, Michael An, Volker Annus, Volker Annuss, Benny Antonsson, Daniel Anulliero, Edsel Apostol, Gonzallo Arro, 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, Johnny Bigert, Aart Bik, Norman Blais, Uri Blass, Fonzy Bluemers, Volker Bohm, Terry Bolt, Ivan Bonkin, Michael Borgstadt, Bert van den Bosch, Borko Boskovic, Jean Bouchet, Xavier Bouchet, Christopher Bowron, Ross Boyd, Dan Ravensloft, formerly Matthew Brades, Lucas Braesch, Oliver Brausch, Sander Maassen vd Brink, Jan Brouwer, Alex Brunetti, Martin Bryant, Gabor Buella, Dieter Buerssner, Stefan de Buhr, Romain Burgot, Shay Bushinsky, Vadim Bykov, Carlos del Cacho, Raoni Campos, Giuseppe Cannella, Pedro Castro, Fabio Cavicchio, Can Cetin, Ma Chao, Manik Charan, Shawn Chidester, Vadim Chizhov, Piotr Cichy, Philipp Classen, Vivien Clauzon, Federico Corigliano, Claudio Della Corte, Marco Costalba, Anthony Cozzie, Stuart Cracraft, Jason Creighton, Don Cross, Viktor Csomor, Pawel Czerminski, Piotr Dachtera, David Dahlem, Don Dailey, Christian Daley, Alessandro Damiani, Martin Danielsson, Jon Dart, Richard Delorme, Vadim Demichev, Daniel Diaz, Manuel Diaz, Antonio Dieguez, Dusan Dobes, Mike Dokken, Chrilly Donninger, Alejandro Dubrovsky, Patrice Duhamel, Michael Dvorkin, Dogac Eldenk, Sean Empey, Philippe Fabiani, Andrew Fan, Ubaldo Farina, Ernesto Torres Feliciano, Peter Fendrich, Jorge Fernandez, Helmut Fett, Martin Fierz, Guillermo Filia, Sune Fischer, Tim Foden, Chris Formula, Josue Forte, Andrei Fortuna, Dr Colin Frayn, Klaus Friedel, Ronald Friederich, Philippe Gailhac, Thomas Gaksch, Jose Carlos Martinez Galan, Marcin Gardyjan, 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, Romain Goussault, Andrew Grant, Fritz Grau, Thorsten Greiner, Conor Griffin, Darragh Griffin, Steve Griffin, Andrea Griffini, Neels Groenewald, Denis Gruzdev, Christian Guenther, Alex Guerrero, Gabriel Guillory, Jacob Hales, Arnaud Halle, Bas Hamstra, Gunnar Harms, Roman Hartmann, Tony Hecker, Navid Hedjazian, Raimund Heid, Toni Helminen, Luca Hemmerich, Andreas Herrmann, Folkert van Heusden, Michael Hoffmann, Dan Homan, Dan Honeycutt, Peter Horvath, Robert Houdart, Rudolf Huber, Marc-Philippe Huget, Nguyen Viet Huy, Robert Hyatt, Alessandro Iavicoli, Nicu Ionita, Hironori Ishibashi, Miguel Izquierdo, Colin Jenkins, Harald Johnsen, Christophe Jolly, Ben-Hur Carlos Langoni Junior, Tom Kalmijn, Pradu Kannan, Francois Karr, Jean-Philippe Karr, Dominik Kaser, Seth Kasmann, Larry Kaufman, Mohammad Kayali, Tom Kerrigan, Marcel van Kervinck, Niyaz Khasanov, Joona Kiiski, Dave King, Tom King, Jan Klima, Janne Kokkala, Marek Kolacz, Thomas Kolarik, Chua Kong-Sian, Johan de Koning, Frank Kopp, Roman Korba, Alexey Korneychuk, Evgeniy Korniloff, Igor Korshunov, George Koskeridis, Tim Kosse, Eugene Kotlov, Pawel Koziol, Jonathan Kreuzer, Nikita Kurgin, Tamas Kuzmics, Sylvain Lacombe, Matthew Lai, Jean-Yves Lallemand, Andrea Lanza, Michael Lawatsch, Mark Lefler, Fabien Letouzey, Zong Zheng Li, Tom Likens, Jose Andres Morales Linares, Jacob Bors Lind, Anton Lindenmair, Gary Linscott, Alex Lobanov, Stuart Nevans Locke, Dominique Longbien, Stephen Lovell, Robert Lubczynski, Bruno Lucas, Maximilian Lupke, Matthias Luscher, George Lyapko, Louis James Mackenzie-Smith, Erik Madsen, Ivan Maklyakov, Odd Gunnar Malin, Stefano Malloggi, Christophe J. Mandin, Edoardo Manino, Andres Manzanares, Andrea Manzo, Eric Marathee, Julien Marcel, Sergei Markoff, Mariusz Marszalkowski, Youri Matiounine, Srdja Matovic, Andreas Matthies, Steve Maughan, Anton Maydell, Thomas Mayer, Jonas Mayr, Kris McAulay, Thomas McBurney, 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, Manlio Morini, Alex Morozov, Dmitry Morozov, Ferdinand Mosca, Edmund Moshamer, Alexandru Mosoi, William Mota, H.G. Muller, Mathias Muller, Roberto Munter, Ron Murawski, Luca Naddei, Aleksandar Naumov, Pallav Nawani, Sergei Nefedov, Rian Neogi, Jens Baek Nielsen, Jesper Nielsen, Walter van Niftrik, Torbjorn Nilsson, Phokham Nonava, Bernd Nuernberge, Mikko Nummelin, Eric Oldre, Lourenco Oliveira, Vincent Ollivier, Jury Osipov, Peter Osterlund, Felipe Otaviano, Mathieu Page, Marco Pagnoncelli, Rahman Paidar, Salvador Pallares, Marco Pampaloni, Gian-Carlo Pascutto, Arkadiusz Paterek, Cesar Rodolfo Contreras Perez, Lance Perkins, Maciej Pestka, Jonatan Pettersson, Thomas Petzke, Jochen Peussner, Roland Pfister, Gunther Piez, Ilari Pihlajisto, Richard Pijl, Mateusz Luksik, Poland, Robert Pope, Shaun Press, Marcus Prewarski, Kamil Przybyla, Teemu Pudas, Daniel Jose Queralto, David Rabel, Vasik Rajlich, David Rasmussen, Adrien Regimbald, Gerrit Reubold, Fritz Reul, Stuart Riffle, Luigi Ripamonti, Charles Roberson, Nicolas Robert, Erik Robertsson, Federico Rojo, Jean-Francois Romang, Tord Romstad, Toma Roncevic, Jonathan Rosenthal, Benjamin Rosseaux, Alberto Alonso Ruibal, Jaime Benito de Valle Ruiz, Rhys Rustad-Elliott, Severi Salminen, Maurizio Sambati, Bendik Samseth, 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, Lawrence Sebald, Martin Sedlak, Vince Sempronio, Antonio Senatore, Fermin Serrano, Daniel Shawul, Volodymyr Shcherbyna, Michael Sherwin, Grzegorz Sidorowicz, Allard Siemelink, Evgeniy Silchenko, Eric Silverman, Will Singleton, Kai Skibbe, Per Skjerpe, Oleg Smirnov, Tony Soares, Christian Soderstrom, Bluefever Software, Christian Sommerfeld, Daniel Sparks, Shikhar Srivastava, Vlad Stamate, John Stanback, Roland Stuckardt, Johanes Suhardjo, Steen Suurballe, James Swafford, Antoni Szczepanski, Werner Taelemans, Vincent Tang, Milos Tatarevic, Robert Taylor, Franck Tempet, Fernando Tenorio, Moritz Terink, Christophe Theron, Nathan Thom, Krasimir Topchiyski, Antonio Torrecillas, Eric Triki, Jost Triller, Alexander Turikov, Ulrich Turke, Gustaf Ullberg, Mark Uniacke, Daniel Uranga, Paul Villanueva Urquijo, Engin Ustun, Oliver Uwira, Per-Ola Valfridsson, Andres Valverde, Juan Manuel Vazquez, Pablo Vazquez, Jose M Velasco, Koundinya Veluri, Joel Veness, Stephan Vermeire, Richard Vida, Tom Vijlbrief, Luigino Viscione, Fabian von der Warth, Simon Waters, Zach Wegner, David Weller, Daniel White, Andrew Williams, Jefferson Wilson, Laurens Winkelhagen, Dan Wulff, Kelvin Yang, Eric Yip, Dragan Zdravkovic, Marco Zerbinati, Franck Zibi, Stefan Zipproth, Roger Zuehlsdorf, Johannes Zwanzger, Stockfish team members, Gary Linscott and others.

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 December 14, 2019