Chess Mail logo Friend of ICCF award  
Editor: Dr Tim Harding
  Dr. Tim Harding   J. H. Blackburne     Paul Morphy   Correspondence Chess history book   Captain W. D. Evans

More about UltraCorr 2024 database

Version 2 of our 2024 edition of our UltraCorr correspondence chess database is now on sale, even bigger and better than before. Please download the database from this website and pay securely via PayPal. You can pay first or download first.

UltraCorr2024 is a ChessBase-format database available in both the long-standard CBH format and the 2CBH format introduced with ChessBase17.

We created the database using ChessBase16 to guarantee backwards compatibility for people using earlier versions (back as far as CB10 at least and probably to CB8) and other programs such as Fritz which use the same file format.

There is a separate download page for the 2CBH format which you shpould only use if you have CB17. One payment will cover using both versions but they have different passwords.

Below is some further information about the contents of the database. Even more information about how we process metadata (player and tournament names) has now been added.

Except for Chess-960, our database includes all recently played games from the servers of ICCF, and FICGS (all to end-2023), and from LSS to the end of June 2023. The much-improved Lechenicher Schachserver (LSS) has clearly now become the main free alternative to ICCF for CC players of all strengths, and there has been a consequent reduction in the amount of CC on the Free Internet Computer Game Server (FICGS) although some very strong players are still active there.

During 2022 and 2023 Tim continued to spend much time on reviewing historical CC games from the 19th and 20th centuries. Games from British postal events in the second half of the 20th century received special attention.

We are also grateful to some readers who sent in corrections or other games for inclusion. We are happy to receive corrections or games at any time though there may not be another edition of UltraCorr, given that our editor is now in his 76th year.

We have continued to improve player and event identification generally and eliminated thousands of bad quality doubles and fragments which were not easy to detect previously.

It is virtually impossible to eliminate all duplicates, especially as certain players seem happy to repeat drawn games they have played previously against the same opponent when they meet again. In some popular sharp openings such as the Najdorf Sicilian whole games sometimes just repeat known theory, but from time to time important innovations come to light (thanks to new computer engines) which alter assessments.

In 2022 we had to complain about the large number of "mirror games" we detected and we sent an evidence-based report to the ICCF executive. They would not tell us what action they have taken, but it appears that the worst offender has been sanctioned and probably others have been warned to cease this form of cheating.

Games played under Chess-960 (also known as Fischer-Random) rules were not included because in the past some readers using earlier versions of ChessBase had problems with the database. Collections of Chess-960 CC games may be found on the ICCF and LSS servers if you are a member. We have also excluded Russian tournaments played with the bizarre "King" variant.

If you do not like games in your database that were played using pseudonyms and internet handles, you can go to the Sources tab in the indexes and delete tens of thousands of games that were run on the server. If you want to retain those games, you should note that the HCL games were "human chess league" (computer engines not allowed) while their ACL games were computer-assisted ("active chess league").


Back to the UltraCorr2024 introduction page.