Editing Computer Olympiad (section)

===Bridge===
{{Main|Contract bridge}}
[[File:Bridge declarer.jpg|thumb|right|A bridge hand being played]]
Bridge is a [[trick-taking card game]] for four players.

Bridge participation in the Computer Olympiad was largely discontinued when in 1996 the [[American Contract Bridge League]] established a new official World Computer Bridge Championship, to be run annually at a major bridge tournament.  Starting in 1999, that event is now co-sponsored by the [[World Bridge Federation]].
{| class="wikitable"
|+ Events held by Olympiad and year
|- align="center"
!1||2||3||4||5||6||7||8||9||10||11||12||13||14||15||16||17||18
|- align="center"
!1989||1990||1991||1992||2000||2001||2002||2003||2004||2005||2006||2007||2008||2009||2010||2011||2013||2015
|- align="center"
|{{Checkmark|15}}||{{Checkmark|15}}||{{Checkmark|15}}||{{Checkmark|15}}||||||{{Checkmark|15}}||||||||||||||||||||||
|}
{| class="wikitable" style="width: 780px;"
|+ Participants and results
|-
!rowspan=2|Olympiad||rowspan=2|Year||rowspan=2|Number of<br />participants||colspan=2| Ranking<ref>{{cite web|url=https://www.game-ai-forum.org/icga-tournaments/game.php?id=9|title=Bridge (ICGA Tournaments)}}</ref>
|- align="center"
!Program||Authors
|- align="center" valign="top"
|style="width: 60px;"|1||style="width: 30px;"|1989||style="width: 80px;"|4
|style="width: 180px;" align="left"|
#Acol Master
#Vtech
#Oxford Bridge
#Bridge Baron
|style="width: 430px;" align=left|
#Paul Jones, United Kingdom
#Tony Guilfoyle, United States
#Andrew Bracher, United Kingdom
#Tom Throop, Tony Guilfoyle, United Kingdom
|- align="center" valign="top"
|2||1990||2
|align="left"|
#Bridge Baron
#Oxford Bridge
|align=left|
#Tom Throop, Tony Guilfoyle, United Kingdom <!-- but Tom Throop is American??? -->
#Andrew Bracher, United Kingdom
|- align="center" valign="top"
|3||1991||3
|align="left"|
#Bridge Baron
#Pupil
#Bridge King
|align=left|
#Tom Throop, Tony Guilfoyle, United Kingdom
#Joost Jacob, Netherlands
#Johannes Leber, Gero Scholz, Germany
|- align="center" valign="top"
|4||1992||3
|align="left"|
#Bridge King
#Bridge Baron
#Alpha Bridge
|align=left|
#Johannes Leber, Gero Scholz, Germany
#Tom Throop, Tony Guilfoyle, United Kingdom
#Alexander Lopatin, Russia
|- align="center" valign="top"
|7||2002||2
|align="left"|
#Wbridge5
#Jack
|align=left|
#Yves Costel, France
#Hans Kuijff, Netherlands
|}