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.143
This is an External Sudoku from the World Sudoku Championship - 2009.
How long did you take to solve it?
ReplyDeletePost your timings here.
I solved it in 7m 27s.
ReplyDelete