The Logical World of Puzzles

This blog deals with grid-based puzzles and the various types of logic and ideas used to solve them. It also contains notices, information and results about various puzzle and sudoku championships across the globe.

Puzzle No.146

This is an Extra Region Sudoku from the World Sudoku Championship - 2009.

PUZZLE NO.146: EXTRA REGION SUDOKU

SOLUTION:

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2 comments:

Rohan RaoJune 5, 2009 at 2:00 PM
How long did you take to solve it?
Post your timings here.
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Rohan RaoJune 5, 2009 at 2:00 PM
I solved it in 4m 19s.
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About Me

Rohan Rao: Mumbai, Maharashtra, India; I am 22yrs old, doing my post-graduation in Applied Statistics at IIT-Bombay. Puzzles is my passion and I won the Indian Sudoku Championship in 2010, 2011, 2012, and the Indian Puzzle Championship in 2010, 2011, 2012. I represented India at the World Championships in 2008, 2009, 2010, 2011, 2012. Chess has always been my favourite game and I achieved my FIDE Elo rating in chess in Feb-2005. I am a member of the high-IQ Mensa organisation. I love creating puzzles and have organised many puzzle and sudoku championships.

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