World Sudoku Championship

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2015 World Sudoku Championship Sofia, Bulgaria

The World Sudoku Championship (WSC) is an annual international puzzle competition organised by a member of the World Puzzle Federation. The first event was held in Lucca in 2006. National teams are determined by local affiliates of the World Puzzle Federation. The competition typically consists of 100 or more puzzles solved by all competitors over multiple timed rounds, including classic sudoku, variations and other puzzle types, normally followed by a playoff for the top qualifiers to determine a champion. Examples of rounds include the Relay round, where an answer from one puzzle contributes digits to the start of the next sudoku, and the "World Record" round, in which solvers competed to set a Guinness World Record for fastest sudoku solution.

Of the 13 championships held so far, Kota Morinishi of Japan (2014, 2015, 2017 and 2018) has been the most successful winner with four individual titles, over Thomas Snyder of United States (2007, 2008 and 2011), Jan Mrozowski of Poland (2009, 2010 and 2012) who have each won three.

From 2007 there has also been a team competition. Japan is the most successful team, having won the title in 2007, 2012, 2014, 2015 and 2018; Czech Republic (2008, 2016), Germany (2010 and 2011) and China (2013, 2017) have won this title twice; Slovakia (2009) also won a title.

Starting from 2011, the event has been held alongside the World Puzzle Championship.

Participants[]

Currently, 30 countries are official members of the World Puzzle Federation. Individuals may also take part if their country is not already represented by a national team.^[1]

Results summary[]

Year	Host city	Host nation	Individual				Team
			Gold	Silver	Bronze	Fourth	Gold	Silver	Bronze
2021	Shanghai	China
2020	Shanghai	China	cancelled due to the COVID-19 pandemic
2019	Kirchheim	Germany	Ken Endo	Kota Morinishi	Dai Tantan	China	Japan	Czech Republic
2018	Prague	Czech Republic	Kota Morinishi	Bastien Vial-Jaime	Tiit Vunk	Japan	China	Germany
2017	Bangalore	India	Kota Morinishi	Tiit Vunk	Qiu Yanzhe	China	Japan	France
2016	Senec	Slovakia	Tiit Vunk	Jakub Ondroušek	Kota Morinishi	Czech Republic	China	Japan
2015	Sofia	Bulgaria	Kota Morinishi	Tiit Vunk	Jakub Ondroušek	Japan	China	Czech Republic
2014	London	United Kingdom	Kota Morinishi	Tiit Vunk	Bastien Vial-Jaime Jakub Ondroušek	Japan	Germany	China
2013	Beijing	China	Jin Ce	Kota Morinishi	Jakub Ondroušek	China	Czech Republic	Japan
2012	Kraljevica	Croatia	Jan Mrozowski	Kota Morinishi	Hideaki Jo	Japan	Czech Republic	China
2011	Eger	Hungary	Thomas Snyder	Kota Morinishi	Tiit Vunk	Germany	Czech Republic	United States
2010	Philadelphia	United States	Jan Mrozowski	Jakub Ondroušek	Hideaki Jo	Germany	Czech Republic	Japan
2009	Žilina	Slovakia	Jan Mrozowski	Branko Ceranic	Robert Babilon	Slovakia	Czech Republic	Serbia
2008	Goa	India	Thomas Snyder	Yuhei Kusui	Jakub Ondroušek	Czech Republic	Japan	Germany
2007	Prague Bulgaria	Czech Republic	Thomas Snyder	Yuhei Kusui	Peter Hudak	Praveen Kumar  India	Japan	United States	Czech Republic
2006	Lucca	Italy	Jana Tylova	Thomas Snyder	Wei-Hwa Huang	-	-	-

Starting from 2013, titles have been awarded also for the best players in two age groups, Under 18 and Over 50 years of age.

Year	Host city	Host nation	Under 18			Over 50
			Gold	Silver	Bronze	Gold	Silver	Bronze
2021	Shanghai	China
2020	Shanghai	China	cancelled due to the COVID-19 pandemic
2019	Kirchheim	Germany	Ming Letian	Hu Yuxuan	Huang Mingrui	David McNeill	Zoran Tanasic	Joshua Zucker
2018	Prague	Czech Republic	Ming Letian	Dai Tantan	Chen Shiyu	Michael Smit	Mark Goodliffe	Taro Arimatsu
2017	Bangalore	India	Dai Tantan	Hu Yuxuan	Ming Letian	David McNeill	Mark Goodliffe	Michael Smit
2016	Senec	Slovakia	Qiu Yanzhe	Chen Shiyu	Sun Cheran	Zoran Tanasic	Mark Goodliffe	Taro Arimatsu
2015	Sofia	Bulgaria	Sun Cheran	Dai Tantan	Chen Nuo	David McNeill	Mark Goodliffe	Zoran Tanasic
2014	London	United Kingdom	Dai Tantan	Jin Ce	Sun Cheran	David McNeill	Jiri Hrdina	Stefano Forcolin
2013	Beijing	China	Jin Ce	Sun Cheran	Qiu Yanzhe	Henning Kalsgaard Poulsen	Liang Yue	Stefano Forcolin

References[]

External links[]

Wikimedia Commons has media related to World Sudoku Championship.

• Official web site of the World Puzzle Federation
• 2015: Official web site of the 10th WSC and 24th WPC
• 2014: Official web site of the 9th WSC and 23rd WPC
• 2013: Official web site of the 8th WSC and 22nd WPC
• 2012: Official web site of the 7th WSC and 21st WPC
• 2011: Official web site of the 6th WSC and 20th WPC
• 2010: 5th WSC April 29-May 2, 2010 Philadelphia, United States
• 4th WSC April 24–27, 2009 Žilina, Slovakia
• 2008: 3rd WSC Goa, India
• 2007: 2nd WSC Prague, Czech Republic
• 2006: 1st WSC Lucca, Italy

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