The Math of Sudoku

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Sudo What?The name is derived from ‘suji wa dokushin ni kagiru’, which is theJapanese for ‘the digits must remain single’.It is known that this game (essentially the same) was already knownin France in the 1800’s.
Sudo-HistoryThe modern version of Sudoku is an American invention (notJapanese). The author is unknown, but there is evidence it wasHoward Garns.First published by Dell Puzzle Magazine in 1979 under the nameNumber Place.Taken by the Japanese puzzle company Nikoli in the mid-80’s. Thatis when the name Sudoku was originated.In 2005, Felgenhauer and Jarvis proved that there are6,670,903,752,021,072,936,960 Sudoku boards. Russell and Jarvisproved that there are 5,472,730,538 essentially different boards.
Page 1 and 2: T H EM A T HS U D O K UO FOscar Veg
Page 3: The GameA Sudoku board is a 9 × 9
Page 7 and 8: Pop Culture: Silly, Funny,.... WTH?
Page 9 and 10: Math Game?People say that sudoku is
Page 11 and 12: Direct Proof5 3 76 1 9 5 39 8 68 6
Page 13 and 14: Forcing Chains (Proof by Contradict
Page 19 and 20: Forcing Chains (Proof by Cases)2315
Page 25 and 26: Many-to-oneWe can create many other
Page 27 and 28: MinimalityQ. What is the minimum nu
Page 29 and 30: The graph of a Sudoku boardHerzberg
Page 31 and 32: More theoremsTheorem (Herzberg & Ra
Page 33 and 34: Latin squares of order 9Let us look
Page 35: T H A N KY O U

The Math of Sudoku

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