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Sudoku A Logic Based Puzzle Game

July 20, 2009

Sudoku – A Logic Based Puzzle GameSudoku

If you are fond of addictive puzzle games that require skill and logic, then Sudoku is the game best suited for you.

Sudoku is a logic based puzzle game involving number placement in combinations. It is a game wherein you have to fill a 9×9 grid in such a way that each column, each row, and each of the nine 3×3 boxes/blocks contain the digits from 1 to 9 only one time each. The grid already has a few numbers filled in, the rest of the grid has to be completed by the puzzle solver.

Sudoku PuzzleThe modern puzzle was invented in 1979 by Howard Garns; an American architect and a freelance puzzle constructor from Indiana. It was first published by Dell Magazines under the name “Numbers in Place and was popularized in 1986 by the Japanese puzzle company Nikoli, under the name Sudoku, meaning single number. His creation became an international hit in 2005.

There are many variants to this game. You can also find puzzles offering 4×4 grids with 2×2 regions or blocks; a 6×6 grid with 2×3 regions has been featured in World Puzzle Championship. Larger grids offering a 12×12-grid with 12 regions of 4×3 squares are also available.

According to Wikipedia the Sudoku Competitions featured till date are:

• The first World Sudoku Championship was held in Lucca, Italy, from March 10-12, 2006. The winner was Jana Tylová of the Czech Republic. The competition included numerous variants.

• The second World Sudoku Championship was held in Prague from March 28 to April 1, 2007. The individual champion was Thomas Snyder of the USA. The team champion was Japan.

• Hosted by renowned puzzle master Will Shortz, The Philadelphia Inquirer Sudoku National Championship was the first U.S. Sudoku Championship. Thomas Snyder was the winner of the expert division, receiving $10,000 and a spot on the U.S. National Sudoku Team at the 2008 World Sudoku Championship in India.

• The third World Sudoku Championship was held in Goa, India, from April 14-16, 2008. Thomas Snyder repeated as the individual overall champion, and also won the first ever Classic Trophy (a subset of the competition counting only classic Sudoku). The Czech Republic won the team competition.

• United Kingdom newspapers have run several national Sudoku competitions, the most prominent is run by The Times. Nina Pell won the first contest, in 2005, followed by Rachel Rothm, in 2006, and Tom Collyer, in 2007. Nina regained her title on September 13, 2008, at the Institute of Education, part of the University of London. In finishing order, the eight grand finalists were: Nina Pell, Howard Granville, Maxwell Rock, George Danker, David Collison, Pippa Wassall, Jason Shannon and Ross Pope.

• The 4th World Sudoku Championship was held in Žilina, Slovakia, from April 24-27, 2009. After past champion Thomas Snyder of USA won the general qualification, Jan Mrozowski of Poland emerged from a 36-competitor playoff to become the new World Sudoku Champion. Host nation Slovakia emerged as the top team in a separate competition of three-membered squads.

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