From: Vipul Kelkar <vipul.kelkar@...>
Date: 2009-09-19T17:28:10+09:00
Subject: Sudoku Difficulty

Hi guys

I am trying to develop a sudoku app in ruby.
I want to have the difficulty levels..say easy Medium and hard

What decides the level of difficulty.How should i place my numbers
depending upon the difficulty level selected
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