what is Sudoku Puzzle?and how can i solve it?pls?
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Sudoku also known as Number Place, is a logic-based placement puzzle. The aim of the puzzle is to enter a numerical digit from 1 through 9 in each cell of a 9×9 grid made up of 3×3 subgrids (called "regions"), starting with various digits given in some cells (the "givens"). Each row, column, and region must contain only one instance of each numeral. Completing the puzzle requires patience and logical ability. Although first published in a U.S. puzzle magazine in 1979, Sudoku initially caught on in Japan in 1986 and attained international popularity in 2005.
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According to this page..\nhttp://www.shef.ac.uk/~pm1afj/sudoku/\n..there are 6,670,903,752,021,072,936,960 different completed 9x9 Sudokus.
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I think Sudoku is wicked. I like the Lotto Sudoku better!
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I don't think you have stated the puzzle correctly.\n\nIf each letter is supposed to represent a single digit, (which is the usual way these kinds of problems are stated) and the correct statement of the arithmetic is\n XYZXYZ+ABCD-ABC=EFGHA\nthen there is no solution.\n\nXYZXYZ is a 6 digit number, since ABCD has to be larger than ABC, ABCD-ABC is a positive number.\nWhen you add that to XYZXYZ, the result will have at least 6 digits, but EFGHA only has 5 so the problem is inconsistant.\n\nThere is another problem: The puzzle as you have stated it, uses 11 symbols to represent the 10 digits. If you allow more than one letter to represent a single digit then you can say let all the letter represetn the same value. Then you can get: A=B=C=D=E=F=G=Z=Y=Z=0 and the problem is trivial.
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" Fill in the grid so that every row,\nevery column, and every 3x3 box\ncontains the digits 1 through 9.\nRead this page:\nhttp://www.sudoku.com/
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History of Sudoku and Killer Sudoku Variations \n\nAll of us, by now should have heard of SuDoku... if you haven't, you must have been living in a box. Or maybe it is the other way around, those of us that are hooked on SuDoku are now living in a box (in the form of a 9x9 grid).\n\nAnyway, if you have always wondered about how this little number puzzle came about, it actually first appeared in the U.S. in the May 1979 issue of Dell Pencil Puzzles & Word Games where it was called Number Place. It is believed to be the creation of a retired architect named Howard Garns, age 74 at the time.\n\nSeveral years later, in 1984 it was adopted by a puzzle group in Japan and named "Suuji Wa Dokushin Ni Kagiru" ("the numbers must be single") As it became popular, this was shortened to SuDoku (Su=number, Doku=single) and was trademarked.\n\nOther magazines in Japan, soon copied the puzzle but went with the more generic name Nanbaapureesu (phonetically "Number Place") and often just used the English spelling. Later when it was rediscoved in the U.S. and the U.K. it was titled "SuDoku" which leads to an interesting scenario. Japanese speakers call it by its English name (Number Place) and English speakers call it by its Japanese name (SuDoku).\n\nIf you are interested in reading more of the historical details or learning about numerous sudoku variations (including Killer SuDoku a.k.a. Samunamupure or Samunanpure, Greater Than SuDoku, Samurai SuDoku, Relay SuDoku, etc.) there are a couple links below.
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Tangram!\nTangram is an ancient Chinese puzzle. This activity is sometimes called "seven pieces of cleverness." The object of the puzzle is to rearrange the pieces of a square (the puzzle pieces) to form figures (like a picture of a cat) using the tangram pieces. \nI used to play with these when I was teaching, fun stuff!
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The name "Sudoku" is the Japanese abbreviation of a longer phrase, "Suuji wa dokushin ni kagiru (数字は独身に限る)," meaning "the digits must remain single"; it is a trademark of puzzle publisher Nikoli Co. Ltd in Japan. Other Japanese publishers refer to the puzzle as Number Place, the original U.S. title, or as "Nanpure" for short. Some non-Japanese publishers spell the title as "Su Doku".
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I think practice is the only way. I use several different methods. But usually, I start with the obvious ones. Look within the boxes first to fit in the easy ones. Do that once again in case you missed any, then look at each row and column. Sometimes, if there looks like a few possibilities, you can work out if there is a number which can only go in one square which you might not see straight away. Sometimes, there will be squares where only 2 numbers are possible. If there are 2 squares in the same row/column/area which have the same 2 possiblities and then there is only one square remaining then you know the last square must be the other number. Some people don't think of that.
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Ok... before I spend more time on this... did you find this puzzle in a book call "how to keep an idiot busy?" lol
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Definitions of  sudoku on the Web:\n\n    * Sudoku (: 数独, sūdoku), sometimes spelled Su Doku, is a placement puzzle, also known as Number Place in the United States. The aim of the puzzle is to enter a number from 1 through 9 in each cell of a grid, most frequently a 9×9 grid made up of 3×3 subgrids (called "regions"), starting with various numbers given in some cells (the "givens"). Each row, column and region must contain only one instance of each number. ...\n      en.wikipedia.org/wiki/Sudoku
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If you have a My Yahoo! page (or create one if you don't by going to My Yahoo! on the www.yahoo.com page) click on "add content". It will give you a "find content" box -- enter 'daily sudoku" and it will give you several options including The Daily Sudoku at http://www.dailysudoku.co.uk  \nNow click on teh +Add button to add it to your My Yahoo! page
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Get a book of Sudoku puzzles.  They're very addicting and fun!
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Check it out: http://www.conceptispuzzles.com/products/sudoku/rules.htm
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Since I love Sudoku, can I suggest a best out of seven tournament.
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What riddle can i solve, but you cant? =P
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***********************Spoiler Alert***********************\n\nThe puzzle is solvable. I spent about 4 mind-racking hours on it. Click the link to see the puzzle together. :-)