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.41
This is an Extra Region Sudoku from the Bulgarian Sudoku Championship - 2007.
How long did you take to solve it?
ReplyDeletePost your timings here.
I solved it in 5m 58s.
ReplyDelete5 min 35 sec
ReplyDeleteI did it in 4'32".
ReplyDelete