Editing Computer Olympiad (section)

===Amazons===
{{Main|Game of the Amazons}}
{{Chess diagram 10x10
| tright
| size = 20
|
|  |  |  |qd|  |  |qd|  |  |
|  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |
|qd|  |  |  |  |  |  |  |  |qd
|  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |
|ql|  |  |  |  |  |  |  |  |ql
|  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |
|  |  |  |ql|  |  |ql|  |  |
| The starting position in Amazons
}}
Amazons is played on a 10×10 [[chessboard]] by two players each with four ''[[amazons]]'' (queen chess pieces). Moves are made to block squares and the winner is the last player able to move his pieces to an unblocked square.
{| 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}}||{{Checkmark|15}}||||{{Checkmark|15}}||{{Checkmark|15}}||{{Checkmark|15}}||{{Checkmark|15}}||{{Checkmark|15}}||{{Checkmark|15}}||
|}
{| class="wikitable" style="width: 777px;"
|+ Participants and results
|- align="center"
!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=15|title=Amazons (ICGA Tournaments)}}</ref>
|- align="center"
!Program||Authors
|- align="center" valign="top"
|style="width: 60px;"|5||style="width: 30px;"|2000||style="width: 80px;"|6
|style="width: 177px;" align="left"|
#8 Queens Problem
# Yamazon
#Anky
#Antiope
#Aska
#Otrere
|style="width: 430px;" align=left|
#Johan de Koning, Netherlands
#Hiroshi Yamashita, Japan
#Patrick Hensgens, Netherlands
#Theo Tegos, Greece
#Yoichiro Kajihara, Japan
#Paul Utgoff, United States
|- align="center" valign="top"
|6||2001||4
|align="left"|
#8 Queens Problem
#Aska
#Invader
#Anky
|align=left|
#Johan de Koning, Netherlands
#Yoichiro Kajihara, Japan
#Richard Lorentz et al., United States<ref name="Lorentz">Lorentz supervised students: Eugene Furman (2010), Conrad Pack (2010), Dan Dennison (2006), Archie Huerto (2005), Monica Reiss (2005), Akop Karapetyan (2003), Henry Avetisyan (2001)</ref>
#Patrick Hensgens, Netherlands
|- align="center" valign="top"
|7||2002||6
|align="left"|
#Amazong
#8 Queens Problem
#Invader
#Tanazon
#Aska
#Antiope
|align=left|
#Jens Lieberum, Germany
#Johan de Koning, Netherlands
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Yasushi Tanase, Japan
#Yoichiro Kajihara, Japan
#Theo Tegos, Greece
|- align="center" valign="top"
|8||2003||5
|align="left"|
# Amazong
#Invader
#8 Queens Problem
#Aska
#TAS
|align=left|
#Jens Lieberum, Germany
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Johan de Koning, Netherlands
#Yoichiro Kajihara, Japan
#Yoshinori Higashiuchi, Reijer Grimbergen, Japan/Netherlands
|- align="center" valign="top"
|9||2004||2
|align="left"|
#8 Queens Problem
#TAS
|align=left|
#Johan de Koning, Netherlands
#Yoshinori Higashiuchi, Reijer Grimbergen, Japan/Netherlands
|- align="center" valign="top"
|10||2005||3
|align="left"|
#8 Queens Problem
#Invader
#TAS
|align=left|
#Johan de Koning, Netherlands
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Yoshinori Higashiuchi, Reijer Grimbergen, Japan/Netherlands
|- align="center" valign="top"
|12||2007||2
|align="left"|
#8 Queens Problem
#Campya
|align=left|
#Johan de Koning, Netherlands
#Julien Kloetzer, France
|- align="center" valign="top"
|13||2008||4
|align="left"|
#Invader
#8 Queens Problem
#Campya
#BitStronger
|align=left|
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Johan de Koning, Netherlands
#Julien Kloetzer, France
#Qiao Zhi, Sun Zhen, Tao Hongru, China
|- align="center" valign="top"
|14||2009||5
|align="left"|
#Invader
#8 Queens Problem
#Campya
#BitStronger
#FindFire
|align=left|
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Johan de Koning, Netherlands
#Julien Kloetzer, France
#Qiao Zhi, Sun Zhen, Tao Hongru, China
#Xiaowei Hu, Zhang Yuting, Wen Zhang, China
|- align="center" valign="top"
|15||2010||7
|align="left"|
#Invader
#8 Queens Problem
#Campya
#FindFire
#Arrow 2
#Bit(Go)
#Qiyi
|align=left|
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Johan de Koning, Netherlands
#Julien Kloetzer, France
#Xiaowei Hu, Zhang Yuting, Wen Zhang, China
#Martin Müller et al., Canada<ref name="VariousCanada">Includes: Martin Müller (Austria), Markus Enzenberger (Germany), Broderick Arneson (Canada, 2009–2010), Rick Valenzano (2010), Daniel Huntley (2010), Gabriel Van Eyck (since 2010), Jiaxing Song (since 2010)</ref>
#Peixing Zhan, China
|- align="center" valign="top"
|16||2011||4
|align="left"|
#Invader
#8 Queens Problem
#Arrow 2
#Fortress
|align=left|
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Johan de Koning, Netherlands
#Martin Müller et al., Canada<ref name=VariousCanada/>
#Andi Zhang, China
|- align="center" valign="top"
|17||2013||6
|align="left"|
#Invader
#8 Queens Problem
#Long Shot
#Fortress
#Arrow 2
#Explorer
|align=left|
#Richard Lorentz et al., United States<ref name=Lorentz/>
#Johan de Koning, Netherlands
#Marcin Malec, United States
#Andi Zhang, China
#Martin Müller et al., Canada<ref name=VariousCanada/>
#Zhou Ke, China
|}