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... we have a small favour to ask. More people, like you, are reading and supporting our blog: "Chess Engines Diary". And unlike many other sites and blogs, we made the choice to keep our articles open for all, regardless of where they live or what they can afford to pay.

We hope you will consider supporting us today. We need your support to continue to exist, because good entries are more and more work time. Every reader contribution, however big or small, is so valuable. Support "Chess Engines Diary" even a small amount– and it only takes a minute. Thank you.

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For Donors

👍 Thank you to all the sponsors

Bronze sponsor - Günter from Germany
Bronze sponsor - Eric from USA
Bronze sponsor - Johan from Netherlands
Bronze sponsor - James 
Bronze sponsor - Larry from United Kingdom
Bronze sponsor - Guillaume from France
Bronze sponsor - Wolfgang from Germany
Bronze sponsor - Christian from Germany
Bronze sponsor - Andrea from Italy
Bronze sponsor - Rodrijess from USA
Bronze sponsor - Matthias from Germany
Bronze sponsor - Rudolf from Switzerland
Bronze sponsor - Leroy from USA
Bronze sponsor - Andre from Brazil
Bronze sponsor - Haitao (from USA)
Bronze sponsor - Guy from Switzerland
Bronze sponsor - Jim from USA
Bronze sponsor - Thomas from Germany

Silver sponsor - Matjaz from Germany
Silver sponsor - Wild Horse
Silver sponsor - Black Swan

Mega (cloud) update - files for donors (information):

1. From June 1, 2021, new files (engines, bases, batches, etc.) will be added daily.
2.  The total summary of the added files will always take place on the last day of the month. 
3. Superpack links are available in the text file. 

Bronze rank (minimum payment of $ 50)
Information and thanks on the blog and in our social media, permanent access to the MEGA disk.

Silver rank (minimum payment of $ 250):
Information and thanks on the blog and in our social media, information on the side panel of the blog, permanent access to the MEGA disk, access to our Trello program, can join the testers of our team.

Julio Oscar, John,Hans-Martin, Sergio, Steve, Karl, Adam, Herbert, Salman, Bolivar, Georgi, Salman, Cleto, Bolivar, Ribeiro, Paulo Sergio, Sylvanus, Renzo, Theodore, Joseph, Lone, Laurent, Volkmar, Lone, Francis, Oswald, Marcel, Stefanie, Jacon, Michael, Eric, Clemens, Jacques, Christoph, Guillaume, Swen-Kai, Cedric, Bernd, Jean, Gunter, Laurent, Christian, Jurgen, Ralph, Stephan, Gilbert, Friedrich, Frank, Karl, Günter, Steffen, Reiner, Mathias, Lambros-George, Knutur,  Ranju, Lambros-George, Jignesh, Vishwaraj, Rudi, Fabio, Gilberto, Giovanni, Claudio, Giorgio, Eros, Mattia, Mario, Fabio, Frank, Johan, Da-Wariboko, Michael, Ronald, Stanisław, Luis, Manuel, Maad, Ireneusz, Antonio, Andrzej, Rafael, Andrzej, Daniel, Marcin, Gabriel, Jose, Anthony, Joe, Murat, Chess program, Daniel, David, Ryan, Otto, Ramon, Alexei, Dale, Eric, Nelson, Rodrijess, Lucas, Art. Luna, Tracy, Stephen, John, Tansel, Mihai, David, Daniel, Kumar, Anderw, James, Illya, Pete, Thomas, Norman, Paul, John, Pierre, Philippe, Branko, Steffen, Fabio, James, Bolivar, Ribeiro, Reiner, John, Lambros-George, Johan, Pierre, Branko, Paulo Sergio, Philippe, Mathias, Laurent, Antonio, Marcin, Johan, Josbel, Laszlo, Bob, Bella, Pierre, Christoph, Udo, Grain Tea, Antonio, Laurent, Mathias, Philippe, Paulo, Branko, Lambros-George, John, Reiner, Bolivar, James, Fabio, Johan, Steffen, Johan, Rodrigues, Eric, Igor, Eduard, Timothy, Rene, Reis, Viktor, Martina, Wolfgang, Johan, Matjaz, Cagen, Matjaz, Matjaz, Robert, Marjan, Rene, Neil, Laszlo, Laszlo, Bob, David, Claudiu, Johan, Matjaz, Alain, Clarion, Laszlo, Laszlo, Johan, Leroy, Radek, Radek, Johan, Andrea, Christian, Matjaz, Matthias, Christian, Levente, Khaled, Thomas, Wiliam, Rodrijess, Thomas, Johan, Mieczysław, Luis, Matjaz, John, Oratilwe, Leroy, Rudy, Allan, Helmut, Dawid, Lars, Rogerio, Jan, Andras, Antoni, Matthew, Andre. 

Donors from countries:
Algeria, Argentina, Australia, Austria, Bahrain, Belgium, Brazil, Bulgaria, Canada, Chile, Costa Rica, Czech Republic, Denmark, France, Germany, Greece, Iceland, India, Indonesia, Italy, Mexico, Mozambique, Netherlands, Nigeria, Norway, Poland, Portugal, Quatar, Romania, Russia, Slovenia, South Africa, Spain, Switzerland, Taiwan, Turkey, United Arab Emirates, USA, United Kingdom.

Donate a minimum of 15$, enter your email - we add a bonus: full access to the folder with chess engines, games, tables etc. My email: jotes @

My email:

Or transfer bank:
IBAN: PL 58 2490 0005 0000 4000 2134 5302 SWIFT code of the bank: ALBPPLPW Name of bank: Alior Bank 
Bank address: Lupuszanska 38D, 02-232 Warsaw Bank Country: Poland Postscript: donation - chess engines (and email).

📬A company that wants to place an ad on the site, please contact us at:  jotes ( @ )

Chess engines - sponsored test
If you think that a chess engine should be further tested by us and played in the JCER tournament - you can sponsor it.

Engines in the waiting room, withdrawn from testing.

Sponsored engine

Giraffe 20161023 - The engine has a sponsor - Markus

You make your donation, enter the name of the engine, and we test it again.


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  Fisherov - UCI chess engine (NNUE) Rating JCER = 3548 Meaning of the name: Fisherov = Stock"fish" + Fisch"er" + Kaspar"ov".  Fisherov 0.98d download -  Engine is not publicly available and is non-commercial "Due to a request from the Stockfish team in doubt about compliance with the GNU General Public License, Version 3 (GPL) of the Fisherov engine will not be available to the public. Until the situation is clarified, the engine will be used for testing purposes only and the results of the tournaments with the Fisherov engine can be found on our website. At the same time, people who have downloaded previous versions of the Fisherov engine, please do not share the files with other people. Chess Engines Diary Team"

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