Double Kropki Sudoku puzzle is a new Sudoku Variation that is going to be part of the 4th round of the World Puzzle Federation's Sudoku Grand Prix (GP) 2018. Double Kropki Sudoku is a very interesting Sudoku variation of Kropki Sudoku. The rules of Kropki Sudoku puzzles are slightly changed to make it Double Kropki Sudoku. However, solving the path for Double Kropki Sudoku is very much different from Kropki Sudoku. In Double Kropki Sudoku, we need to mark which cells will contain Even digits and which cells will contain Odd digits. Anyway, this Double Kropki Sudoku, I post for the practice of Sudoku GP. This is the second Double Kropki Sudoku. Earlier Sudoku is published with the title "Double Kropki Sudoku (Fun With Sudoku #309)" recently which also can be used for Sudoku GP practice. This Double Kropki Sudoku puzzle, I am publishing as part of Daily Sudoku League as the 217th Sudoku Puzzle in this Series.

## Rules of Double Kropki Sudoku Puzzle

Standard Sudoku Rules apply. Additionally, Adjacent cells containing numbers whose difference is 2 are marked with a white symbol. Adjacent cells containing numbers whose ratio is 4 are marked with a black symbol. Adjacent cells with no marking must not contain numbers either whose difference is 2 or whose ratio is 4.
 Double Kropki Sudoku Puzzle (Daily Sudoku League #217)
The answer to this Double Kropki Sudoku puzzle can be viewed by clicking on the button. Please try your best to solve this Sudoku puzzle before looking at the answer.

This Double Kropki Sudoku puzzle, I am publishing as #217th Sudoku puzzle in The League of Extraordinary Ladies & Gentlemen. Here are the next and previous Sudoku puzzles published in this Sudoku series.

kishy said...

11:25.Very professionally constructed.Hard and excellent practice !

Rajesh Kumar said...

Thanks Kishore! Your regular feedback helps and motivates me to create and post Sudoku puzzles daily.

Rakesh said...

10.04 - nice one. Got a quick start in row 7 but the progress was still slow thereafter.

Rajesh Kumar said...

Yes, there is very interesting starting point in row 7 for this Sudoku puzzle.
Thanks Rakesh for your regular feedback.

Aashay Patil said...

11:39, nice construction..

Rajesh Kumar said...

It was nice to get your comments on many of the Sudoku puzzles. Thanks to you.
Looking forward for your timings and feedback for the remaining Sudoku puzzles. Hopefully you are going to solve remaining puzzles soon.