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Sudoku Tips - Sudoku Origin

Have  you  ever  wonder  who invented Sudoku?
3  4  5  1  2
I would like to share with you a real
encounter with a Sudoku fanatic I met from my4  5  1  2  3
site.
5  1  2  3  4
I wrote this article History of Sudoku on my
site which traces its origin. The history ofAs you can see, this is just to simple of
Sudoku is said to trace back to 18th century.aconstruction for to be attributed to ANYONE
Very often, you will come across many sites-- I'msure both you and I independently
that linked the development of Sudoku to"invente" it whilescribbling in our notebooks
Swiss mathematician Leonhard Euler. There arein  grade  school.
some sites even claimed that he invented
Sudoku. Though it is not proven, it addsThe Graeco-Latin Square that Euler wrote
colours to the argument as to who actuallyabout has twosymbols in each cell, none of
invented  Sudoku.which are duplicated inany row or column.
Each  symbol  pair  appears  exactlyonce:
I received a strange email from a Sudoku
fanatic, apparently a Japanese, who felt so1d  2b  3a  4c
strongly that the name Leonhard Euler should
not even be mentioned in the history of3c  4a  1b  2d
Sudoku.
4b  3d  2c  1a
To protect his privacy, I won't mention his
name. But I gave him the credit for doing the2a  1c  4d  3b
thorough  research.
As you can see, this has nothing to do with
Here's  what  he  wrote  to  me:Sudoku,nothing to do with puzzles in general.
============================================3) Neither Latin Squares nor Graeco-Latin
====Squares  are
From:  XXXXXXXX"based on" Magic Squares, certainly not on
the Lo Shusquare. Euler wrote about "A new
To:kind  of  magic  square"
Sent:  Thursday,  September  29, 2005 1:01 PM-- refering to a way that Graeco-Roman
squares couldbe used to generate magic
Subject:  History  of  Sudoku  (squares. (Take the squareabove and replace
the a, b, c and d with +0, +4, +8and +12 and
Most of what you wrote here is correct --you'll  get  this:
except  thefirst  paragraph:
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"Sudoku is said to have 18th - century roots,
but theorigins are unclear. It is believed11 4 5  14
the puzzle startedfrom an 18th - century game
invented by Swissmathematician Leonhard8  15  10 1
Euler, which in turn was basedon an ancient
Chinese  puzzle,  Lo  Shu."2 9  16 7
The myth of the Euler connection is just..  see  the  Euler  Archive:.
laziness  onthe  part  of  the  press.
Euler  Archive
1) The origins of Sudoku ARE clear. Howard
Garnesinvented Number Place, Nikoli changed(he  ended  with  a  strong  statement...)
it and coinedthe name Sudoku. It origins as
are concrete as canbe, no more or less thanEuler has NOTHING to do with Sudoku, and
the  Rubik's  cube.thoughbrilliant, didn't discover Latin
Squares.
2) Euler invented Graeco-Latin Squares (which
are inno way related to or similar to Sudoku)============================================
usingpre-exsiting knowledge of Latin Squares=============
-- whichpre-date his birth by several
centuries.I followed the forum which he also
participated in and I saw many heated posts
A Latin Square is nothing more than an nxnwritten by him promoting his defensive theory
array inwhich each digit from 1 to n appearsagainst  Euler.
once in each rowand column. It is not a
puzzle,  nor  are  Graeco-RomanA Sudoku fanatic? Sudoku Addict? I don't
know? But I admire his effort in doing the
Squares.research  and  holding  strong in his belief.
This  is  a  Latin  Square:If you are keen to know the development of
the  Sudoku  History,  click  on  the  link.
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Just a day of History lesson on the subject
2  3  4  5  1of Sudoku!



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