Play Sudoku five years,http://v81kymr.groupfly.cn/showtopic-96348.aspx, Chen Lao His monograph.<br>Remember July 2 Chongqing Evening News published Sudoku puzzles that road it? This road is known as the world's hardest Sudoku puzzle attracts many master challenges. Jiangbei District, a 83-year-old pensioner retreat 15 days, day before yesterday morning finally solving the problem out.<br> <br>Play Sudoku five years to write this book<br> <br>This road is known as the world's hardest Sudoku puzzle is a mathematician Finnish design took three months, known as the world's most intelligent minds just before they could get an answer. It is hardest remains controversial, but it does make a lot of experts scratching his head, while the city an octogenarian day before 4:00 gives the answer to this question.<br> <br>Old man named Chen Jinkang, this year 83 years old, a retired Chongqing Teachers (now Chongqing University of Arts) Mathematics Department, associate professor, research Sudoku has five years,http://x.yrxnet.com/home.php?mod=space&uid=35713, also wrote a monograph. "In 2007, I went to America to visit, to see the local newspapers have published several single game, try to play a bit, since then fascinated, also bought a lot of books at home and abroad related to reading." That is not fun, but also write their own Chen Lao of a "quick break Sudoku golden key", has just completed the manuscript. July 2, the Chongqing Evening News reprinted a version known as the world's 16 most difficult Sudoku puzzle, Chen Lao thus moving the idea of a small test chopper. "If the solution does not come out, I'll burn the manuscript." From the 2nd afternoon at 4:00 on the 17th, which lasted 15 days, was completed.<br> <br>Retreat 15 days to do title 128 fold<br> <br>"No later than 6:30 every morning to get up, the solution has been to 0:00, and often insomnia. One night not sleep, get up at half past three at night to continue the solution, on the 16th night, feel better and better, so forget the big bang out late at night . "Old Chen's wife in the side smiled and added:" I said to him, and then go on this calculation, the title did not do it, the body is the first collapse. "<br> <br>"That is not boring, but very excited, are not intended to solve problems is to verify my manuscript in the algorithm." Old Chen describes, the first step to determine the 128 kinds may fill method,http://cayou.xyz/forum.php?mod=viewthread&tid=22069, then try to order one by one, each It might contain much more likely, that a greater amount of the actual operation, that is, not only the 128 kinds of algorithms.<br> <br>Chongqing Evening News reporter saw Chen table was set aside several questions in this package, we are all numbered. "! Do more than 60 number, that the answer will come out, very,peuterey outlet, very excited, the result was conflict, to only 86 succeeded," Old Chen said he left suffering from cataract, retinal eye damage: " Sometimes the eyes of a flower, it is wrong. "<br> <br>The only answer is Sudoku<br> <br>Evening publish this question did not take long, many users have claimed to make the answer, and a variety of solutions, inevitably confusing. The so-called Sudoku, by definition, every problem has only one solution. Chongqing Evening News reporter a closer look at these so-called right answer, in fact, found that many people do not fully understand the rules of Sudoku. Sudoku is big squares from small squares nine 3 × 3 composition,http://bbs.grpx.org.cn/home.php?mod=space&uid=64703, requiring transverse 9 segments each row, each column longitudinal 9 cells, each palace (area divided by a bold line), are filled with figures 1-9, and can not be repeated. Make a variety of answers, basically can not meet every requirement Palace figures do not repeat.<br> <br>Computer calculations lose the fun<br> <br>According to the Yangtze Evening News reported, the evening of July 2, named "gkzhong" users use a computer program solved this road Sudoku, reportedly took 300 milliseconds. Nie Chong Gap, aged 54, a computer origin, now at Chongqing University Audit Office,http://113.31.82.12/home.php?mod=space&uid=103845, he also claimed the solution out of this question,barbour pas cher, I have written a program, operation takes 10 seconds, he said: "300 ms is unlikely, but not more than 10 seconds. "Since it is so easy to use a computer, why painstakingly? User "Grayfox" believe,http://my.5754.cn/home.php?mod=spacecp&ac=blog&blogid=, Sudoku generated from the beginning,woolrich outlet italia, it is to use pen and paper calculations, hands-on training course in order to get the logic, and fully appreciate the pleasure of thinking. Application problem solving, lost its original meaning. Old Chen also said: "The problem-solving computer program, only the answer, there is no process, it can not find the law, lose a lot of fun."<br> <br>Chongqing Evening News trainee reporter Chen photo coverage<br> <br>Learn his Chen Solution<br> <br>Chen Lao own invention uses a horse, closed network alone, the combination of elimination of approximation solution.<br> <br>Horse riding,air max 90, use of vertical and horizontal exclusion, determines that the digital only two possible locations within each small grids, call this number riding,http://www.chrisadamsperfumes.com/index.php?item/create_form/1, one can determine the number six horse. Combination, beyond the number six horse riding, but also to determine whether a cell can only fill in two digits, thus producing 7 th power of 2,http://www.cecyteo.edu.mx/site/index.php, that is, 128 kinds of possibilities, the answer lies in this 128 network. Eliminated 128 possibilities one by one try-out, the answer emerged. This method of operation compared with the number of random test, there is a certain regularity,louboutin pas cher, but the process is quite troublesome, because in each network will continue to produce new small portfolio, small combinations and little combinations that actual computation is 128 × N × N. Drill-out is also very difficult, but the benefits are, each made out of several numbers are absolutely correct, without completely overturned.<br> <br>Sudoku<br> <br>Sudoku is a numbers game to fill, the English name Sudoku, originated in Switzerland in the 1970s by the American Mathematical logic game first published in a magazine called Number Place, after popular in Japan, in 1984 alone the number name Sudoku, That independent digital omitted, each box is filled interpreted as a single digit. In 2004, a former Hong Kong High Court Judge Gould (Wayne Gould) put the game to England, a British popular mathematical intelligence jigsaw puzzle.<br> <br>Puzzle is the squares (ie, 3 cells wide × 3 grid H) of square-shaped, each divided into a fine grid squares. In each of the small squares, and fill in the figures 1-9, respectively, so that the whole big squares in each column, each row will not repeat the figures. Play Sudoku logic is simple, digital arrangement changing, many educators believe that Sudoku is a good way to exercise the brain.<br> Welcome to comment to share: microblogging Recommended<br>
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Retreat 15 days to do title 128 fold
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