Originally Posted by vaibhav_89 what is the concept you are
using so that you are able to solve even simple sudoku's plzz
tel me. actually i m trying to develop a program which can solve
sudoku's.but i m unable to understand the relation between the
numbers that are given in a certain sudoku problem. Well.. lets
start out with the basics. A solved 3x3 sudoku will use all of
the numbers 1-9 exactly once in any single row, column, or cell
block. In order to solve a sudoku you need to understand that
what you know(solved cells) isn't as important as what you don't
know(unsolved cells). As such you have to keep a running track
of exactly which numbers are possible in any blank cell at any
one time.. and when those possibilities reach only one... that
value is the value of the cell. There are 8 logic deductions
used to remove possibilities from blank cells. 4 basic ones and
4 advanced ones. Once all fail you need to solve it by brute
force. Brute force involves recursion. I've allready provided
all of the logic in