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.167
This is a Doors puzzle from the French Puzzle Championship - 2005.
How long did you take to solve it?
ReplyDeletePost your timings here.
I solved it in 6m 15s.
ReplyDeleteThis is a very good puzzle for practise...