Japanese wins World Sudoku Championship in London

Japanese wins World Sudoku Championship in London

TOKYO, Japan - The UK Puzzle Association announces on Aug. 20, 2014, that Kota Morinishi (R), a Tokyo University Graduate School student, won the 2014 World Sudoku Championship held in London, Britain, earlier this month. The 25-year-old Japanese also won the 2012 International Sudoku Tournament in Beijing as shown in this file photo taken in May that year.

Japanese graduate student wins world Sudoku competition

Japanese graduate student wins world Sudoku competition

BEIJING, China - Kota Morinishi (R), a University of Tokyo graduate student, holds a prize check after winning the 2012 Beijing International Sudoku Contest in Beijing on May 20, 2012. Sudoku, a numerical puzzle in which an 81-square grid must have each row and column filled with the digits from 1 to 9, was named by a Japanese publisher and has become highly popular in Europe and the United States, with an increasing number of devotees in China.

Japanese graduate student wins world Sudoku competition

Japanese graduate student wins world Sudoku competition

BEIJING, China - Kota Morinishi (R), a University of Tokyo graduate student, holds a prize check after winning the 2012 Beijing International Sudoku Contest in Beijing on May 20, 2012. Sudoku, a numerical puzzle in which an 81-square grid must have each row and column filled with the digits from 1 to 9, was named by a Japanese publisher and has become highly popular in Europe and the United States, with an increasing number of devotees in China. (Kyodo)

Japanese wins World Sudoku Championship in London

Japanese wins World Sudoku Championship in London

TOKYO, Japan - The UK Puzzle Association announces on Aug. 20, 2014, that Kota Morinishi (R), a Tokyo University Graduate School student, won the 2014 World Sudoku Championship held in London, Britain, earlier this month. The 25-year-old Japanese also won the 2012 International Sudoku Tournament in Beijing as shown in this file photo taken in May that year. (Kyodo)