Thursday, March 19, 2015

Puzzle No 129: Consecutive Sudoku

PS: Updated some Tips and Tricks in this post

A practice puzzle for upcoming SM Episode 7.
Details of which can be found here.


Place numbers in the grid such that each row,column and 3*3 box contain the numbers 1-9. Additionally, orthogonally adjacent cells containing consecutive numbers are separated by bars. All possible bars are marked. 

Theme: Mini Stairs


Tuesday, March 17, 2015

Tutorial to solve Marathon - Nurikabe

First of all, thank you to all for your feedback and support. It will surely help in future creations. As now the marathon is over, i would like to discuss the tricks behind the solution. The final puzzle selected for Marathon was 2nd version of what i created first. The first version was very tough and so had to modify it. I will upload that version soon after it's tested. But for right now let's move on to the solving steps. Apologies for any grammatical mistakes or bad image quality. But i have tried to keep it simple and good as far as i can.
Firstly here is the actual puzzle,

The solution tutorial has been uploaded to following link in pdf format,
please click here to access it.

Thank you once again !!
:) :)

Friday, March 13, 2015

Sudoku Mahabharat Episode 7 by Logic Masters India (LMI)

Episode 7: Converse Round

Discussion Forum  : Click here
Competition Page  : Click here
Instruction Booklet : Click here

Finally a long awaited moment for me, where I am the author for this round. This is the last episode of long going Sudoku Mahabharat started in September-2014. So pull up your sleeves and get ready for one last battle to make your place into offline finals which will be held on 10th May 2015 in Bangalore. For more details on Sudoku Mahabharat click here.

Although you can go out in the internet world and get as many Sudokus as you can but i am also sharing some of the links for your practice. Also sharing some of the tricks to tackle some of types appearing in this test.

Added some new tricks on 19th march 2015 (it's in red color)

Tips and Tricks: 

1) The foremost and biggest tip is don't forget what is the name of this round. Pun not intended.
2) Average Sudoku - Remember since it's average and only integers are allowed, numbers on both side of line will be of same type. i.e. Either both numbers will be even or both will be odd. Also observe 1 and 9 can never be on the lines (1 and 6 for 6x6). 
3) Kropki Sudoku - Black dot only possible pairs are 1-2,2-4,4-8,3-6. White dot pairs are 1-2,2-3,3-4,4-5,5-6,6-7,7-8,8-9. If you have series of 2 black dots then only possible sets are 1-2-4 and 2-4-8. And the only 3 consecutive black dot series is 1-2-4-8. Remember order of these sets can be either way. Also 1-2 can contain either dot (just a reminder). Do not restrict to this as for e.g. if dots series are in L shaped then it can have repeated digits as well like 4-2-4 etc. If you have 4 black dots in the 3*3 box entirely, or in a row or in a column then remaining 3 cells (that do not share dot) will contain digits 5,7,9.
3) Consecutive - Try to look out for big series.
4) XV - V pairs are 3-2,1-4. X pairs are 6-4,7-3,8-2,9-1. Clearly 5 doesn't fit in any of these so now you know what to watch out for.

Practice Puzzle Links:

Anti knight:
Average Sudoku Variants: (Note: these are variants and not the actual Average Sudoku rules used in the test - but will provide you with good practice for this type)
XV Sudoku:

General links: (Average Sudoku especially along with few other types as well) (IB and PB)

Well once again, these links are just glimpse of what is available out there.
Hope you all will enjoy the Sudoku's.
Have fun :) 
Good Luck !!! :)

Friday, March 6, 2015

Puzzle No 128: Classic Sudoku

This is my 26th Sudoku contribution to:
Daily League! The League of Extraordinary Ladies and Gentlemen

Remember that you can solve this puzzle from the League  online on the Sudokucup Guest League page with a 24 hr delay.

Place numbers in the grid such that each row,column and 3*3 box contain the numbers 1-9. 

Difficulty: Easy

Enjoy :)

Thursday, March 5, 2015

Puzzle Marathon: LMI contest 6th March - 15th March

Discussion Forum: Click here
Competition Page: Click here
Instruction Booklet: Click here

I am also one of the co-author for this Marathon. At the end of contest it will be revealed who created which puzzle. But till then have fun. Contest is open for 10 days.

Good Luck !!! :)