World Sudoku Championship

2015 World Sudoku Championship Sofia, Bulgaria

The World Sudoku Championship is an annual international sudoku competition organised by a member of the World Puzzle Federation. The first one was held in Lucca in 2006. National teams are determined by local affiliates of the World Puzzle Federation. The competition typically consists of 50 or more puzzles solved by all competitors over multiple timed rounds, including classic sudoku and variations, 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 10 championships held so far, Thomas Snyder of USA (2007, 2008 and 2011) and Jan Mrozowski of Poland (2009, 2010 and 2012) have been the most successful winners with three individual titles each, they succedeed to Jana Tylova of Czech Republic (2006) who won the first individual championship.More recently, Kota Morinishi of Japan is emerging as the strongest player of the latest years by winning 2 individual titles in 2014 and 2015.

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

Starting from 2011, the event has been held alongside the World Puzzle Championship. The 2015 Championship was held in Sofia, Bulgaria

Results summary

Year	Host city	Host nation	Individual			Team
			Gold	Silver	Bronze	Gold	Silver	Bronze
2016	Senec	Slovakia
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(tied)	Japan	Germany	China
2013	Beijing	China	Jin Ce	Kota Morinishi	Jacob Ondrousek	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 Ondrousek	Hideaki Jo	Germany	Czech Republic	Japan
2009	Zilina	Slovakia	Jan Mrozowski	Branko Ceranic	Robert Babilon	Slovakia	Czech Republic	Serbia
2008	Goa	India	Thomas Snyder	Yuhei Kusui	Jakub Ondrousek	Czech Republic	Japan	Germany
2007	Prague	Czech Republic	Thomas Snyder	Yuhei Kusui	Peter Hudak	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
2016	Senec	Slovakia
2015	Sofia	Bulgaria	Cheran Sun	Tantan Dai	Nuo Chen	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 Karlsgaard Poulsen	Liang Yue	Stefano Forcolin

External links

• 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, USA
• 4th WSC April 24–27, 2009 Žilina, Slovakia
• 2008: 3rd WSC Goa, India
• 2007: 2nd WSC Prague, Czech Republic
• 2006: 1st WSC Lucca, Italy