Sender: ygs wants to irrigate Agui, Hominidae, Genus Bo, waiting for you to come back, letter area: Joke Title: A 69-year-old farmer from Jiangsu solved the world's most difficult Sudoku in 3 days Sending station: Shuimu Community Sun May 26 20:07:30 2013 , within the station Summary There is a way No one can solve the problem because of Kara. The old man corrects the problem and gets the correct solution. The computer calculates the result day and night, and the Chongqing professor is the true value Poor old man, no one understands The old man with golden dragon is calculating Sudoku The world designed by Finnish mathematicians is the most difficult Sudoku Finnish mathematician Inkara spent 3 months designing the most difficult Sudoku game in the world, and it only There is an answer. Inkara says that only the fastest thinkers and the smartest minds can crack this game. This is English. A report by China Daily Mail on June 30, 2012 about this super game known as the world’s most difficult Sudoku But it took a 69-year-old farmer from Yangzhou three days to solve it. And this old man with junior high school education started the Sudoku game. Meng Zhengzheng came from the Yangtze Evening News. I just returned to China yesterday and I called you just to ask the newspaper to find it for my old father. Like-minded friends, because he likes Sudoku from the Yangtze Evening News. Now he is extremely lonely and can’t find anyone around him. This has become a concern for us as children. On the 25th, the old man’s daughter, Ms. Huang, just returned from the United States to start a business. He told the Yangzi Evening News reporter about the old man’s Sudoku experience, hoping to find a number friend for his old father. >> < 8 3 6 7 7 1 3 < 9 6 > ' > <' twenty one 5 7 4 5 8 , o< There always seems to be something wrong ⑧ ③ ⑥ >> < ⑦ ⑨ ② < ⑤ ⑦ > ' > <' ④ ⑤ ⑦ ① ③ ① ⑥ ⑧ ⑧ ⑤ ① , o < ⑨ ④ There always seems to be something wrong