The Dutch open computer chess championship is a chess tournament for computer chess programs. It is organised yearly by the CSVN (Computer Chess Association of the Netherlands) around October or November. The first edition was played in 1981.
| # | Year | Program | Champion |
|---|---|---|---|
| 1 | 1981 | YNCT 1.0 | Luuk de Vries |
| 2 | 1982 | Gambiet 82 | Wim Rens |
| 3 | 1983 | Chess 0.5X | Wim Elsenaar |
| 4 | 1984 | Chess 0.5X | Wim Elsenaar |
| 5 | 1985 | Nona | Frans Morsch |
| 6 | 1986 | Nona | Frans Morsch |
| 7 | 1987 | REBEL | Ed Schröder |
| 8 | 1988 | Quest | Frans Morsch |
| 9 | 1989 | REBEL | Ed Schröder |
| 10 | 1990 | REBEL | Ed Schröder |
| 11 | 1991 | The King | Johan de Koning |
| 12 | 1992 | REBEL | Ed Schröder |
| 13 | 1993 | The King | Johan de Koning |
| 14 | 1994 | Quest | Frans Morsch |
| 15 | 1995 | The King | Johan de Koning |
| 16 | 1996 | CilkChess | MIT team |
| 17 | 1997 | Nimzo | Christian Donninger |
| 18 | 1998 | The King | Johan de Koning |
| 19 | 1999 | Quest | Frans Morsch, Mathias Feist |
| 20 | 2000 | Chess Tiger | Christophe Théron, Jeroen Noomen |
| 21 | 2001 | Chess Tiger | Christophe Théron, Jeroen Noomen |
| 22 | 2002 | Chess Tiger | Christophe Théron, Jeroen Noomen |
| 23 | 2003 | Ruffian | Perola Valfridsson, Martin Blume, Djordje Vidanovic |
| 24 | 2004 | Diep | Vincent Diepeveen |
| 25 | 2005 | Zappa | Anthony Cozzie, Erdogan Günes |
| 26 | 2006 | Rybka | Vasik Rajlich, Jeroen Noomen |
| 27 | 2007 | Rybka | Vasik Rajlich, Jeroen Noomen |
| 28 | 2008 | Rybka | Vasik Rajlich, Jeroen Noomen |
| 29 | 2009 | Rybka | Vasik Rajlich, Lukas Cimiotti (hardware), Jiří Dufek (opening book), Hans van der Zijden (operator) |
| 30 | 2010 | Rybka | Vasik Rajlich, Lukas Cimiotti (hardware), Jiří Dufek (opening book), Hans van der Zijden (operator) |
| 31 | 2011 | Pandix | Gyula Horváth |