Computer-Computer Tournaments & Matches:

• World Computer Chess Championship (WCCC) History (since 1974)
• World Micro Computer Chess Championship (WMCCC) History (since 1980)
• (ACM) North American Computer Chess Championship (NACCC) History (1970-1994)
• Stockholm Micro Computer Chess Tournaments (1979-1981)
• PCW (London) Micro-Computer Chess Championships (1978-1980)
• Canadian Computer Chess Invitational Championship (1984)
• QMW (London) Uniform Platform Computer Chess Tournaments (1992-1994)
• International Paderborn Computer Chess Ch. (IPCCC) History (since 1991)
• Italian Computer Chess Championships (CIPS) (2001-2002)
• French Computer Chess Championships (FCCC) (1993-2002)
• Spanish Computer Chess Championships (SCCC) (1993-2002)
• Hungarian Computer Chess Championships (HCCC) (2001-2003)
• Polish Computer Chess Championship (PCCC) (2003)

International CSVN Tournaments (since 2001)

• 1^st International CSVN Tournament, Leiden 2001
• 2^nd International CSVN Tournament, Leiden 2002
• 3^rd International CSVN Tournament, Leiden 2003
• 4^th International CSVN Tournament, Leiden 2004
• 5^th International CSVN Tournament, Leiden 2005

Computer-Chess Matches by Van Leeuwen (The latest version can be obtained from his website).
These games are not yet in PGN format.

• 3 tournaments with Diep 1.60, Mephisto Montreux, The King 2.55 and the Chess Tigers 10 en 13
• 2 tournaments with Hector 2.03, Mephisto Montreux, Mephisto Berlin Pro and Gambit Tiger 1.0
• 2 tournaments with Rebel Century 3, Mephisto Montreux, Mephisto Berlin Pro and WChess 1.06
• 2 tournaments with Schaak 1.0, Saitek Kasparov, Mephisto Berlin Pro and Bringer v1.6
• 3 trns. with CGX Dominator, Hector 1.01, Kallisto II, Mephisto Montreux, The King 2.55 and Meph.Berlin
• Computer Chess Tournament: 40 programs (!) operated by Ries van Leeuwen

Also available from the History Menu:

Open Dutch Computer-Chess Championships (since 1981)

• N.K. Computerschaak

CSVN Chess-Computer Userīs Tournament (since 1999)

• Gebruikers-toernooi