Showing posts with label Even-Odd. Show all posts
Showing posts with label Even-Odd. Show all posts

Odd Even Count Sudoku 2017 - 1

And today we have the final request of Rakesh being fulfilled. We have an Odd Even Count Sudoku. I had thought that I will be creating this after coming back from the Times Sudoku Championship finals, but since I managed to create it in advance, here I am posting it. There will be a lull on Sunday as I will be out of town for the championship. See you all on Monday.

Rules of classic Sudoku apply. Additionally, An even number placed in a cell with a circle indicates the number of even numbers placed in the surrounding 8 cells. An odd number placed in a cell with a circle indicates the number of odd numbers placed in the surrounding cells. Numbers placed in cells without a circle may have either of these properties.


Even Odd Skyscraper 2013 - 3

Today we have an Even Odd Skyscraper Sudoku. Some one reminded me that I have not put up an Arrow Sudoku on my blog so that will definitely be up here next week. However for this week we will stick to the Even Odd Skyscraper.

Place numbers in the grid such that each row, column and 3x3 box contains the numbers 1 to 9. Each number represents the height of the skyscraper in each cell. The digits outside the grid indicate the number of skyscrapers seen from the corresponding direction. Taller Skyscrapers hide shorter ones. Shaded cells inside and outside the grid can contain only even digits.







Odd-Even Anti-Knight Sudoku 2013 - 1

A hurriedly made even odd sudoku with the anti-knight constraint.

Rules of classic sudoku apply. Grey cells can contain only even digits. A digit cannot repeat at a cell which is at a knights step from itself.


Even Odd Skyscraper Sudoku 2013 - 1

Today's puzzle is one of my favorite creations. I don't think I have spent more time on any puzzle than I have spent on creating this sudoku for the Daily League. I know I am putting up a sudoku once a week on the blog as against a daily puzzle but believe me that there is good news in the offing soon. :)

Last Friday was Tom Collyer's Diagonal Sudoku.
Saturday was Bram's Sum Sandwich Sudoku, in preparation for an upcoming LMI Contest.
Sunday was Kwaka's Rossini Sudoku with Disjoint group constraints.
Monday was Fred's Irregular Sudoku.
Tuesday was Prasanna's Weighted Killer Sudoku.
Wednesday was Bastien's Thermo Sudoku.

Today for the Daily League we have an Even Odd Skyscraper. Place numbers in the grid such that each row, column and 3x3 box contains the numbers 1 to 9. Each number represents the height of the skyscraper in each cell. The digits outside the grid indicate the number of skyscrapers seen from the corresponding direction. Shaded cells inside and outside the grid can contain only even digits.

Happy Solving. :)


Even Odd Chessdoku 2013 - 2

Today we have another Chessdoku, but this time it also doubles up for the League's puzzle. The week has started off interestingly with some great puzzles Arrow Sudoku by Fred, Search 9 by Prasanna and a Renban Sudoku by Bastien.

I hope the chessdoku lives up to the level set up by the previous authors for the week. This is not a difficult puzzle but then it does require a wee little bit of thinking.

Fill the grid such that every row, column and 3x3 box contains the digits 1 to 6, a Chess King(K), Queen(Q) and Knight(N). Additionally, a King cannot attack another King, a Queen cannot attack another Queen and a Knight cannot attach another Knight. Each piece following their moves as in chess. Grey cells can contain only even digits and the orange cells can contain only odd digits.


Even Odd Jigsaw 2013 - 1

Today we will have an Even Odd Jigsaw Sudoku. Its your typical Jigsaw sudoku with cells having even digits marked in grey.

Fill the Grid such that every, row, column and irregular shaped box contain the digits 1 to 9. Additionally, cells marked grey can contain only even digits.


Even Odd Sudoku 2013 - 3

Today we have an Even Odd Sudoku that makes you think just a wee little bit.

Rules of Classic Sudoku apply. Additionally, cells marked grey can contain only even numbers.


Even Odd Sudoku 2013 - 2

Today is another easy Even Odd Sudoku.

Ever since the time Tiit said that my puzzles are hard, I have been consciously making an effort to produce some easy puzzles. At times they are way to easy but I don't see any one complaining.

Rules of Classic Sudoku apply. Additionally, cells marked grey can contain only even numbers.


Even-Odd Sudoku 2013 - 1

Here is a bonus puzzle for today. It is an easy level Even-Odd Sudoku. Another first for me.

Rules of classic sudoku apply. Additionally, the marked grey cells can contain only even digits.