![Prague, Czech Republic. 07th Nov, 2018. The World Sudoku & Puzzle Championship was held in Prague, Czech Republic, on November 7, 2018. On the photo is seen Jakub Ondrousek from Czech Republic. Prague, Czech Republic. 07th Nov, 2018. The World Sudoku & Puzzle Championship was held in Prague, Czech Republic, on November 7, 2018. On the photo is seen Jakub Ondrousek from Czech Republic.](https://c8.alamy.com/comp/R0YEJW/prague-czech-republic-07th-nov-2018-the-world-sudoku-puzzle-championship-was-held-in-prague-czech-republic-on-november-7-2018-on-the-photo-is-seen-jakub-ondrousek-from-czech-republic-until-now-ondrousek-was-the-world-record-holder-he-solved-the-sudoku-grid-in-1-minute-and-25-seconds-in-2010-credit-michaela-rihovactk-photoalamy-live-news-R0YEJW.jpg)
Prague, Czech Republic. 07th Nov, 2018. The World Sudoku & Puzzle Championship was held in Prague, Czech Republic, on November 7, 2018. On the photo is seen Jakub Ondrousek from Czech Republic.
![Prague, Czech Republic. 07th Nov, 2018. The World Sudoku & Puzzle Championship was held in Prague, Czech Republic, on November 7, 2018. On the photo is seen Shiyao Wang (left)from China who Prague, Czech Republic. 07th Nov, 2018. The World Sudoku & Puzzle Championship was held in Prague, Czech Republic, on November 7, 2018. On the photo is seen Shiyao Wang (left)from China who](https://c8.alamy.com/comp/R0YEHP/prague-czech-republic-07th-nov-2018-the-world-sudoku-puzzle-championship-was-held-in-prague-czech-republic-on-november-7-2018-on-the-photo-is-seen-shiyao-wang-leftfrom-china-who-managed-to-solve-the-9x9-sudoku-grid-in-5444-seconds-at-the-championship-which-is-the-new-world-record-on-the-right-side-is-seen-former-czech-athlete-roman-sebrle-patron-of-the-championship-credit-michaela-rihovactk-photoalamy-live-news-R0YEHP.jpg)
Prague, Czech Republic. 07th Nov, 2018. The World Sudoku & Puzzle Championship was held in Prague, Czech Republic, on November 7, 2018. On the photo is seen Shiyao Wang (left)from China who
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