World Computer Chess Championship
| Edition | Event | Country | Participants | Tournaments |
|---|---|---|---|---|
| 22 | 2016 Leiden | The Netherlands | 3 | |
| 21 | 2015 Leiden | The Netherlands | 9 | 3 |
| 20 | 2013 Yokohama | Japan | 6 | 3 |
| 19 | 2011 Tilburg | The Netherlands | 9 | 3 |
| 18 | 2010 Kanazawa | Japan | 10 | 3 |
| 17 | 2009 Pamplona | Spain | 11 | 2 |
| 16 | 2008 Beijing | China | 10 | 2 |
| 15 | 2007 Amsterdam | The Netherlands | 12 | 2 |
| 14 | 2006 Turin | Italy | 18 | 2 |
| 13 | 2005 Reykjavík | Iceland | 12 | 3 |
| 12 | 2004 Ramat-Gan | Israel | 14 | 2 |
| 11 | 2003 Graz | Austria | 16 | 2 |
| 10 | 2002 Maastricht | The Netherlands | 18 | 2 |
| 9 | 1999 Paderborn | Germany | 30 | 1 |
| 8 | 1995 Shatin | Hong Kong - China | 24 | 1 |
| 7 | 1992 Madrid | Spain | 22 | 1 |
| 6 | 1989 Edmonton | Canada | 24 | 1 |
| 5 | 1986 Cologne | Germany | 22 | 1 |
| 4 | 1983 New York | USA | 22 | 1 |
| 3 | 1980 Linz | Austria | 18 | 1 |
| 2 | 1977 Toronto | Canada | 16 | 1 |
| 1 | 1974 Stockholm | Sweden | 13 | 1 |