Thursday, August 25, 2016

Diagonal Sudoku (Daily Sudoku League #182)

Recently I created some Diagonal Sudoku puzzles and there was one Diagonal Sudoku which I found extremely tough. I thought that I will add few numbers to it to make it easy but adding few number will mean that either I break the pattern or give 4 additional hints to maintain symmetry. So I decided not to give any further hints and tried to solve it. It took me more than 1 hour with applying all possible techniques to solve a Diagonal Sudoku puzzle. I found that puzzle extremely tough. However when I give this puzzle to Prasanna for testing, I was shocked with his timings. He solved it in just 5.46 minutes :). I was surprised and shocked by his timing. Looks like I need to improve my Classic Sudoku solving skill a lot. 
I still feel that this is very very tough Sudoku, so I am posting two versions of this Sudoku puzzle. The second Diagonal Sudoku is having one additional hint a center to reduce the difficult level of this Sudoku by half. It will be interesting to see if there is someone, who can solve this Sudoku puzzle in less than 5 minutes to break Prasanna's record :) 
This Diagonal Sudoku puzzles, I am posting in The League of Extraordinary Ladies & Gentlemen as 182nd puzzle in this series.
Diagonal Sudoku (Daily Sudoku League #182)-A
Diagonal Sudoku (Daily Sudoku League #182)-A
Below is the another version of the same Diagonal Sudoku puzzle with the additional hint at center. It should make above puzzle earlier. Use the below given version of this puzzle in case one finds the previous Sudoku very tough to solve.
Diagonal Sudoku (Daily Sudoku League #182)-B
Diagonal Sudoku (Daily Sudoku League #182)-B
Diagonal Sudoku (Daily Sudoku League #182) Solution

Previous Sudoku Kropki Sudoku (Daily Sudoku League #181)
Next Sudoku Consecutive Pairs Sudoku (Daily Sudoku League #183)

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