Here are basic ones:
attempt to fill in the ones, twos, threes, and so on
focus on each box, row or column seperately
use process of elimination
There is great variability in the difficulty of Sudoku puzzles. Some can be very easy once you learn some simple techniques for solving them. Other puzzles can be extremely difficult!
there is no real satistics to a sudoku so unluky the are many ways to do a sudoku
Sudoku is a noun.
Lovers of sudoku can visit the BrainBashers website where they can find daily sudoku games. Billions of free sudoku can also be found on Websudoku. This is unlimited and can be played on all devices such as android or Ipad.
Buku Sudoku happened in 2006.
Zen of Sudoku was created in 2006.
Zen of Sudoku happened in 2006.
Rubik's Sudoku was created in 2006.
Sudoku Gridmaster happened in 2006.
There are several places where one can play sudoku online. Some interactive online sudoku websites include Web Sudoku, Sudoku Saviour, and You Play. Sudoku puzzles can also be printed out and completed by hand, and these types of puzzles can also be found on these websites.
Pyramid sudoku is a regular sudoku board with shaded areas. Not only does one need to complete the regular sudoku, but the shaded areas can only have 1-9 as well.
It doesn't look as if Euler was involved with the invention of Sudoku. http://en.wikipedia.org/wiki/Sudoku#History