Many beginners told me that the Sudokus uploaded on the blog are quite difficult for them to solve. So, I decided that from now on wards I'll also post a link of the easier version of the same Sudoku which I post on the blog. Additionally, from now on wards I'll also post the link of the solution of the Sudoku.(I'll also add the solution link to the previous Sudokus in some days)
Today I'm posting an Extra Region Sudoku. Hope you all enjoy it.
Rules: Classic Sudoku rules apply. Additionally, each group of 9 shaded cells will also have digits from 1 to 9.
Links:
9:58, took some time to spot the logic.
ReplyDelete✌
Delete4:45.Very nice.Used placeholder idea a lot.Your trick shared in group is too good which I didn't spot in my solve.
ReplyDeleteWhat does placeholder idea mean?🤔
Delete6:00 - Smooth solve. Some visible and invisible extra regions there!
ReplyDeleteSometimes the invisible gives more hints😉
DeleteJust saw this message by chance.Placeholder : A certain cell has to be at a certain location due to variant constraints.But,in most cases what you won't know is the content of the cell.For example,in your sudoku, R8C7 = R7C6 , R2C9 = R3C6 & so on....
ReplyDeleteGot it. Knew the technique but not the name ;)
DeleteNice construction.. Enjoyed solving it.
ReplyDeleteThank you, Ramesh!
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