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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.

Wednesday, August 24, 2016

Little Killer Sudoku Puzzles

Little Killer Sudoku Puzzles
Some of the Sudoku puzzles has math element added to it to make the Sudoku Puzzle more interesting. Little Killer Sudoku is one of the Sudoku type which adds Mathematics to Sudoku. Here outside given hints denotes the Sum of the numbers coming along the diagonals. Recently I have created few Little Killer Sudoku puzzles. However not many Little Killer Sudoku puzzles are published here. These puzzles will be published soon on this blog and links to these puzzles will be posted here.
Rules of Little Killer Sudoku
Classic Sudoku Rules apply. Additionally numbers with arrows indicate sum of the numbers in each direction.

Little Killer Sudoku (Fun With Sudoku #195)

Little Killer Sudoku (Fun With Sudoku #139)

Diagonal Little Killer Sudoku (Fun With Sudoku #128)

Thursday, August 18, 2016

Kropki Sudoku (Daily Sudoku League #181)

There was a time when for me Kropki Sudoku was one of the toughest Sudoku type. In many of the puzzles I could not even get the starting point and most of the time I have to guess to get started. However after creating many Kropki Sudoku, now I enjoy solving this Sudoku type. This Kropki Sudoku is my 15th 9x9 Kropki Sudoku and I am looking forward to create more in the coming days.
This Kropki Sudoku I am posting as 181st Sudoku in The League of Extraordinary Ladies & Gentlemen.

Wednesday, August 17, 2016

Extra Region Sudoku Puzzles

Extra Region Sudoku Puzzles
Extra Region Sudoku puzzles is standard Sudoku variation very near to Classic Sudoku puzzle where some Extra Region of some cells is given. This Extra Region contain the unique digits i.e. no number is repeated in this given Extra Region. This Sudoku type was part of World Sudoku Championship 2015 (WSC 2015) and many puzzles of this type came in this championship. Currently there are very few Sudoku puzzles of this type published here. However I have prepared many puzzles of this type for preparations of WSC 2015 which I will be posting soon. On this page I will be giving links to all these puzzles. 
Rules of Extra Region Sudoku
Classic Sudoku Rules apply. Additionally each group of nine colored cells must also contain the numbers 1 to 9.

Friday, August 12, 2016

(Non) Consecutive Sudoku Puzzles

(Non) Consecutive Sudoku Puzzles
There are many (Non) Consecutive Sudoku puzzles published on this blog and currently I have many more which will be published soon. So to keep track of all these (Non) Consecutive Sudoku puzzles, I am posting thread which which contain link to all the Consecutive and Non Consecutive Sudoku puzzles on this blog. I will be putting the link to all newly published Sudoku puzzles of this type on this thread. Moreover today on 7th June, 2015 my blog completes 2.5 million page views. Thanks to all the visitors of this blog to make it possible. 
Rules of Non Consecutive Sudoku
Classic Sudoku Rules apply. Moreover no adjacent cell pairs (sharing an edge) can contain digits which are consecutive to each other.

Thursday, August 11, 2016

Consecutive Pairs Sudoku (Daily Sudoku League #180)

I found Consecutive Paris Sudoku more tough than Consecutive Sudoku. In the Consecutive Sudoku, converse rules of puzzle play a major rule while solving the puzzle. However in Consecutive Pairs Sudoku, converse rules does not apply and hence there are more possibilities of numbers occupying a particular sum. Anyway Consecutive Pairs Sudoku has become my favorite puzzle type not only as a puzzle creator but also as a puzzle solver. Looking forward to create more Sudoku puzzles of Consecutive Pairs Sudoku type soon.
This Consecutive Pairs Sudoku, I am posting as 180th Sudoku in The League of Extraordinary Ladies & Gentlemen.