World Sudoku Championship

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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 6 championships held between 2006 and 2011, Thomas Snyder of USA (2007, 2008 and 2011) has won the most times, with Jan Mrozowski of Poland (2009 and 2010) and Jana Tylova of Czech Republic (2006) also having won the individual championship.

From 2007-2011 there has also been a team competition. Japan (2007), Czech Republic (2008), Slovakia (2009), and Germany (2010 and 2011) have each won this title.

The 2012 Championship will be in Croatia, alongside the World Puzzle Championship.

Past Locations:

Year	Place	Country	Individual			Team
Year	Place	Country	Gold	Silver	Bronze	Gold	Silver	Bronze
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	-	-	-