The original name Opening Master was born in 2004 when the website was also registered. The founder and creator Alexander Horvath, SIM (1954 - 2013) was a big fan of collecting data since the origin of correspondence chess back in the 80s. I personally remember him writing down all the games in a big red notebook, studying the opponents from the older notes, and having thousands of books on different openings.

Birth of the Chess Database

Going to the post office with paper post logs with chess moves, and receiving replies from chess players 1-2 weeks later. The 90s meant computers and chess databases. And faster collection and analysis. The studying and real collecting of the games weren't really meaningful until the Internet era started. The birth of chess databases and the birth of the Opening Master. The legacy continues with more power and strength, more analysis, and more statistics. Correspondence chess is about studying a perfect move, perfect opening, middle game, and perfect closing. Computers help humans to analyze and decide however we STILL believe the human brain has bigger potential than the computer. Therefore the original decision was to produce ALWAYS human games only. In 2004 and also 2020. Opening Master is a proud sponsor of global ICCF tournaments.

Opening Master since 2004

OpeningMaster.com is a privately-owned enterprise coming from the middle of Europe -Slovakia. The authors have been involved in chess for more than 30 years and are internationally recognized players. The creator of the project is Alexander Horvath, Senior International Master, ICCF (ELO 2497, 2. GM Norm) member of the Slovak National Team (Gold Medal ICCF European Team Championship). Other main contributors to OM databases are Jan Helbich, SIM, Peter Pasko, SIM, and Slávka Hulecová, WGM.

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Mission Statement

• NO multiple data / same games presented twice - duplication issue

• NO short games (less than 8 moves)

• NO computer games

• NO games without a body (as they don't bring any analysis value to add)

• YES - to provide best chess databases with the highest quality from humans to humans

How things have started:

Version Release Date Games  
Private collection 2004 and before around 2,500,000  
OM Alpha 2005  3,300.000  
OM Beta 2006  4.500.000  
OM RC1 2007  4,800,000  
1.00 March 7, 2008 5,083,779  
1.01 March 16, 2008 5,112,427  
1.02 April 2, 2008 5,115,853  
1.03 May 2, 2008 5,131,048  
1.04 June 10, 2008 5,154.271  
1.05 July 5, 2008 5,168,049  
1.06 August 4, 2008 5,225,910  
1.07  September 4, 2008 5,271,420  
1.08 October 3, 2008 5,324,805  
1.09 November 3, 2008 5,510,355  
1.10 December 5, 2008 5.537,195  
1.11 January 5, 2009 5,539,943  
1.12 February 4, 2009 5,557,710  
1.13 March 3, 2009 5,541,146  
1.14 April 5, 2009 5,565,054  
1.15 May 2, 2009 5,580,129  
1.16 June 2, 2009 5,604,608  
1.17 July 5, 2009 5,625,215  
1.18 August 3, 2009 5,645,742  
1.19 September 6, 2009 5,677,818  
1.20 October 4, 2009 5,700,186  
1.21 November 7, 2009 5,717,136  
1.22 December 5, 2009 5,737,826  
 1.23 January 2, 2010 5,748.250  
1.24 February 6, 2010 5,762.539  
1.25 March 5, 2010 5,780.518  
1.26 April 5, 2010 5,801,613  
1.27 May 5, 2010 5,816.945  
1.28 June 4, 2010 5,831.786  
1.29 July 5, 2010 5,848.879  
1.30 August 4, 2010 5,875.890  
2.00 September 4, 2010 5,862.783  
2.01 October 4, 2010 5,926.283  
2.02 November 3, 2010 5,959.156  
2.03 December 4, 2010 6,036.810  
2.04 January 6, 2011 6,056.943  
2.05 February 3, 2011 6,069.539  
2.06 March 3, 2011 6,081.506  
2.07 April 5, 2011 6,108.883  
2.08 May 4, 2011 6,150.939  
2.09 June 5, 2011 6,192.640  
2.10 July 4, 2011 6,213.832  
2.11 August 6, 2011 6,249.821  
2.12 September 1, 2011 6,277.510  
Version Split Date OM GOLEM OM OTB
2.13 October 1, 2011 7,543.153 5,674.681
2.14 November 1, 2011 7,623,665 5,700,862
2.15 December 1, 2011 7,665,905 5,738,984
2.16 January 1, 2012 7,848.778 5,857.167
2.17 February 1, 2012 8,080,111 6,060.027
2.18 March 1, 2012 8,104,368 6,149,182
2.19 April 1, 2012 8,104.368 6,135.474
2.20 May 1, 2012 8,170.695 6,151.394
2.21 June 1, 2012 8,200.503 6,181.420
2.22 September 1, 2012 8,341.648 6,273.439
2.23 January 1, 2013 8,701,379 6,579.340
2.24 June 1, 2013 8,701,379 6,533,462
2.25 October 1, 2013 8,701,379 6,594,984
2.26 October 1, 2014 8,701,379 6,718,376
2.27 December 1, 2014 8,701,379 7,347,687
2.28 January 1, 2015 10,015,200 7,442,823
2.29 May 1, 2015 12 mil* 7,651,818
3.00 2016 14 MIL 8 mil
4.00 2017 20 mil 8,5 mil
5.00 2018 26 mil 8,8 mil
6.00 2019 28 mil 8,9 mil
7.00 2020 29,7 mil 8,9 mil

* Major increase in OM GOLEM was human chess games coming from OM PORTAL. OM CORR has been increasing stable from 1,3 mil to 1,9 mil games.

 

History of Logo development

history om logo

 

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Opening Master chess databases are copyrighted material. Please refer to our terms and conditions for using the collection. Do not distribute, make illegal copies or parts of the databases. We are not expensive.

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