PUZZLE NO. 208 : THERMO - LITTLE KILLER HYBRID SUDOKU

We have all had a very difficult 2020. Let us all hope that 2021 brings us happiness and prosperity. Wish all of you a Happy New Year 2021 in advance. Here is a 2021 themed Thermo - Little Killer hybrid sudoku.

RULES : Classic Sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The numbers are in increasing order from the bulb to the flat end on each thermometer. Also, the numbers with arrows outside the grid indicate the sum of the digits appearing in the cells in the corresponding direction. Numbers may repeat in the direction of the arrow.

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PUZZLE NO. 207 : CONSECUTIVE PAIRS - THERMO HYBRID SUDOKU

 Wishing all of you a Merry Xmas. Here is an XMAS themed sudoku . Hope you all will like it.

 RULES : Classic sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The numbers are in increasing order from the bulb to the flat end on each thermometer. If a grey circle is given between two adjacent cells , then the numbers in those cells will be consecutive. Not all grey circles are given , which means adjacent cells without a grey circle may or may not contain consecutive digits.

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PUZZLE NO. 206 : PALINDROME SUDOKU

 Hi All. It gives me great pleasure to share with all of you that my new book World Of Sudoku : Vol # 3 is now available on amazon.com. The book has 24 classic sudokus and 12 sudokus from eight different variants. The variants covered in Vol # 3 are : Quadruple Sudoku; Palindrome Sudoku; Extra Regions Sudoku; Consecutive Sudoku; Pencil Marks Sudoku; Inequality Sudoku; Clone Sudoku; Kropki Pairs Sudoku.

All the sudokus are test solved by Freddie Hand and his timings are mentioned with each sudoku. This sudoku is among one of the most difficult ones in the book. Freddie has taken over 15 minutes to solve this. Do share your timings on this. The link to purchase from amazon is  https://amzn.to/3mjSUEH . The book is also available as pdf on payhip. The link to payhip is https://payhip.com/b/yxsL

I am really thankful to Simon Anthony for covering this sudoku on the You Tube channel Cracking The Cryptic. The link to the video is https://www.youtube.com/watch?v=sMi5DXZSwa4

RULES : Classic sudoku rules apply. Additionally, digits along the given lines read the same from either direction on the line.

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PUZZLE NO. 205 : PALINDROME SUDOKU

 

RULES : Classic sudoku rules apply. Additionally, digits along the given lines read the same from either direction on the line.

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PUZZLE NO. 204 : THERMO SUDOKU

 My daughter is a big fan of BTS. So here is a BTS themed thermo sudoku on her order :)

RULES : Classic sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The numbers are in increasing order from the bulb to the flat end on each thermometer.

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PUZZLE NO. 203 : PENCIL MARKS SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, some cells have digits on the top left side. One of those digits can only be placed in the respective cells.

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PUZZLE NO. 202 : QUADRUPLE SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, each small digit inside the grid should appear at least once in the four neighboring cells of the grid.

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PUZZLE NO. 201 : KROPKI PAIRS SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, if the absolute difference between two digits in neighboring cells equals 1, then they are separated by a white dot. If the digit in a cell is half or double of the digit in a neighboring cell, then they are separated by a black dot. The dot staying between 1 and 2 can have any of these dots. All possible dots are not marked.

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WORLD OF SUDOKU VOL # 2

 

Hello All,

               It feels great to share with all of you that my second book in the series World Of Sudoku is out now. The book contains 240 handcrafted Mini Sudokus covering 20 different variants. All the sudokus are test solved by Hemant Malani of India. This is a very good book for the children and also the elders in the family. There aren’t many books on mini Sudokus that are available in the market. The ones that are available normally have Classic Sudokus only, and that too, computer generated ones. I am sure the children and the elders in the family will develop keen interest in Sudokus after solving from this book. It is also a fun book for regular Sudoku solvers.

                The book is available on amazon.com. The link to the book is: https://amzn.to/3kkEUdT

                The book is also available as PDF on payhip.com. The link to the book is: https://payhip.com/worldofsudoku

                 The book is also available on Google Play Store for android users. It can be downloaded as an e-book on your android devices. The link to Google Play Store is: https://rb.gy/azwfn5

PUZZLE NO. 200: THERMO SUDOKU

 It is an amazing feeling to reach 200 sudokus on my blog today. I had started this blog in the year 2017. The year 2020 started with Sudoku no.37. I never thought that I would reach the number 200 so soon. The 200th Sudoku is a Thermo Sudoku. This is my favorite variant and I like to create this variant with different themes. Hope you will like this 200 themed sudoku.

RULES : Classic sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The numbers are in increasing order from the bulb to the flat end on each thermometer.

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PUZZLE NO. 199 : EXTRA REGIONS SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, each group of nine shaded cells must also contain the digits 1 to 9.

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PUZZLE NO. 198 : LIAR LITTLE KILLER SUDOKU

 

RULES : Classic Sudoku rules apply. Clues outside the grid are all liars. They are either 1 less or 1 more than the sum of the digits along the corresponding diagonal direction. Numbers may repeat along the corresponding diagonal direction of the outside clues.

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PUZZLE NO. 197 : LIAR ARROW SUDOKU

 

RULES : Classic Sudoku rules apply. The arrow shapes in the grids are all lying. The digit in the circled cell of each arrow must be either one more or one less than the sum of the digits along its path. Digits may repeat along an arrow.

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WORLD OF SUDOKU VOL # 1 : NOW AVAILABLE ON FLIPKART

Hi all. This is to share with you that my book World Of Sudoku Vol. # 1 is now available on  FLIPKART. Here is the link .

PUZZLE NO. 196 : THERMO SUDOKU

   Hi Friends. This Thermo Sudoku is from my book. The reason for posting this is that Bastien Vial-Jaime has covered this sudoku on his YouTube Channel 81 cells. The link to the video is here . In the video he is speed solving the sudoku. You will be amazed at how he speed solves. Do check out the video.

RULES : Classic sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The numbers are in increasing order from the bulb to the flat end on each thermometer.

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PUZZLE NO. 195 : CLASSIC SUDOKU

 

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 box.

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PUZZLE NO. 194 : Consecutive Pairs Sudoku

 

RULES : Classic sudoku rules apply. If a grey circle is given between two adjacent cells, then the numbers in those cells will be consecutive. Not all grey circles are given, which means adjacent cells without a grey circle may or may not contain consecutive digits.

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PUZZLE NO. 193 : THERMO - QUADRUPLE HYBRID SUDOKU

 

RULES : Classic sudoku rules apply. Additionally, there are some thermometer shapes in the grid. The numbers are in increasing order from the bulb to the flat end on each thermometer. Also, each small digit inside the grid should appear at least once in the four neighboring cells of the grid.

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PUZZLE NO. 192 : Odd Even Sudoku

 Another sudoku from my book World Of Sudoku Vol # 1. Freddie Hand, who test solved all sudokus from my book had taken 07:41 minutes on this sudoku. Lets see , if you guys can better that. 

  Also, this sudoku will be covered by Rishi Puri on his YouTube channel Sudokumaniacs. Thanks Rishi for this.

RULES : Classic sudoku rules apply. Cells containing grey circles contain only odd digits. Cells containing grey squares contain only even digits.

PUZZLE NO. 191 : Liar Sudoku

 Hi all. Today's sudoku is from my book World Of Sudoku Vol #1. Hope you will like it. Give this a try. Freddie Hand, who test solved all sudokus from my book had taken 12.33 minutes on this sudoku. Lets see , if you guys can better that. 

 Also, this sudoku will be covered by Ashish Kumar on his YouTube channel Unshackling Sudokus & Puzzles. 

RULES : Classic sudoku rules apply. Additionally, every given clue is lying. The correct value is either one more or one less than the given clue. 

 Note : A 1 can only have value 2 and a 9 can only have value 8.

WORLD OF SUDOKU VOL # 1 - UPDATES

 

Hi friends,

               It gives me great pleasure to share with all of you that my book World Of Sudoku Vol # 1 is now available to purchase in India. The book is priced at Rs.275/- including shipping charges. The book is available here

               The book is also available at amazon.com. Here is the  link

               For those who prefer a pdf , can buy the e-book from payhip.com. Here is the link

  

PUZZLE NO. 190 : Killer Sudoku

 

RULES : Classic sudoku rules apply. There are some cages in the grid. The number on the top left corner of each cage is equal to the sum of the numbers in that cage. Numbers do not repeat in a cage.

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PUZZLE NO. 189 : Killer Sudoku

 

RULES : Classic sudoku rules apply. There are some cages in the grid. The number on the top left corner of each cage is equal to the sum of the numbers in that cage. Numbers do not repeat in a cage. ( The shaded cages are just for clarity purposes and have no other implications )

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PUZZLE NO. 188 : XV Sudoku

 

RULES : Classic sudoku rules apply. If the sum of digits in orthogonally adjacent cells is 10, then they are separated by an X. If the sum of digits in orthogonally adjacent cells is 5, then they are separated by a V. All possible Xs & Vs are marked.

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PUZZLE NO. 187 : XV Sudoku

 

RULES : Classic sudoku rules apply. If the sum of digits in orthogonally adjacent cells is 10, then they are separated by an X. If the sum of digits in orthogonally adjacent cells is 5, then they are separated by a V. All possible Xs & Vs are marked.

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PUZZLE NO. 186 : Inequality Sudoku

 

RULES : Classic sudoku rules apply. There are 'greater than' (>) and 'less than' (<) signs in the grid. The cell with the open end of the sign should be greater than the cell with the closed end of the sign. 

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PUZZLE NO. 185 : Consecutive Pairs Sudoku

 

RULES : Classic sudoku rules apply. If a grey circle is given between two adjacent cells, then the numbers in those cells will be consecutive. Not all grey circles are given, which means adjacent cells without a grey circle may or may not contain consecutive digits.

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PUZZLE NO. 184 : Clone Sudoku

 

RULES : Classic sudoku rules apply. Additionally, digits in each corresponding cell in both shaded figures are identical.

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PUZZLE NO. 183 : Classic Sudoku

 

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 box.

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PUZZLE NO. 182 : Renban Sudoku

 

RULES : Classic sudoku rules apply. Additionally, each grey line contains consecutive numbers, in any order.

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PUZZLE NO. 181 : Parity On Line Sudoku

 

RULES : Classic sudoku rules apply. Along each grey line, the digits have the same parity.

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PUZZLE NO. 180 : Sum Frame Sudoku

 

RULES : Classic sudoku rules apply. Clues outside the grid represent the sum of the first three digits in the corresponding row or column.

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PUZZLE NO. 179 : Thermo - Killer - Odd Even - Consecutive Pairs Hybrid Sudoku

 

RULES : This is a hybrid of Thermo Sudoku , Killer Sudoku , Odd Even Sudoku & Consecutive Pairs Sudoku. Classic sudoku rules apply. In addition , rules of the four variants in the sudoku apply.

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PUZZLE NO. 178 : Quadruple Sudoku

 

RULES : Classic sudoku rules apply. Additionally, each small digit inside the grid should appear at least once in the four neighboring cells of the grid.

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PUZZLE NO 177 : Thermo - Liar Hybrid Sudoku

 

RULES : This sudoku is a hybrid of Thermo Sudoku & Liar Sudoku. There are some thermometer shapes in the grid. Digits on each thermometer are strictly increasing from the bulb to the flat end. Also, there are some  given clues on the top left corner of some cells. Every given clue is lying. The correct value of the clues is either one more or one less than the given clue. Note : A 1 can only have value 2 & a 9 can only have value 8.

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WORLD OF SUDOKU VOL #1 - Updates

 

   Hello Friends. I have a wonderful news to share with you all. My first book World Of Sudoku Vol # 1 is now available as paperback on the Amazon store. The last 3-4 days have been full of anxiety. First, Amazon no longer accepts puzzle books in e-book format. I had spent so much time and effort in formatting and other stuffs for e-book format. It was disheartening when I got the mail stating that puzzle books are no longer accepted as e-books. Also, they have strict guidelines regarding the cover pages as well as interior formatting for paperback. On the third attempt, after formatting the book , it finally got accepted as paperback and is now available to purchase. The link for the book is here

   The book for the Indian market will also be available soon ( around 7-8 days from now ). I will be sharing the details soon.

   

PUZZLE NO. 176 : Outside Sudoku

 

RULES : Classic sudoku rules apply. Additionally, the digits outside the grid must appear in one of the first three cells seen from that edge of the grid.

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PUZZLE NO. 175 : EXTRA REGIONS SUDOKU

 The Indian Government has banned the Chinese app PUBG. It had such a massive craze. So, I thought of creating a sudoku based on the theme. Hope it will be as much fun as PUBG.

THEME : PUBG

RULES : Classic sudoku rules apply. Additionally, each group of nine shaded cells must also contain the digits 1 to 9.

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PUZZLE NO. 174 : Sudokube

 

RULES : Place a digit from 1 to 9 in each empty cell such that each digit appears exactly once in each row and column that wraps around the surface of the cube and in each outlined region.

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PUZZLE NO. 173 : Consecutive Sudoku

 

RULES : Classic sudoku rules apply. Orthogonally adjacent cells containing consecutive numbers are separated by white dots. All possible dots are marked. 

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PUZZLE NO. 172 : Classic Sudoku

 

RULES : Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column and 3x3 box.

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WORLD OF SUDOKU - VOLUME # 1

 

Hello everyone. It gives me great pleasure to share with all of you that my first book "World Of Sudoku - Vol # 1" is ready and will be available soon. It has 24 classic sudokus and 8 different variants having 12 sudokus each , making it a total of 120 sudokus.

The book includes

• Classic Sudoku
• Odd Even Sudoku
• Thermo Sudoku
• Killer Sudoku
• Consecutive Pairs Sudoku
• Arrow Sudoku
• XV Sudoku
• Trio Sudoku
• Liar Sudoku

All sudokus are test solved by Freddy Hand - one of the most exciting talents in the world of puzzles.

Further details regarding the availability of the book will be updated this week. 

PUZZLE NO. 171 : Average Sudoku

 

RULES : Classic sudoku rules apply. If the number in a cell equals the average of its two horizontal neighbours, then the cell is marked with a horizontal line. If the number in a cell equals the average of its two vertical neighbours, then the cell is marked with a vertical line. All possible lines are marked.

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PUZZLE NO. 170 : Little Killer Sudoku

 

RULES : Classic sudoku rules apply. Additionally, the numbers with arrows outside the grid indicate the sum of the digits appearing in the cells in the corresponding direction. Numbers may repeat in the direction of the arrow.

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PUZZLE NO. 169 : Odd Even Sudoku

 

RULES : Classic sudoku rules apply. Cells containing grey circles contain only odd digits. Cells containing grey squares contain only even digits.

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PUZZLE NO. 168 : Palindrome Sudoku

 

RULES : Classic sudoku rules apply. Additionally, digits along the given lines read the same from either direction on the line.

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PUZZLE NO. 167 : Anti Knight Sudoku

 

RULES : Classic sudoku rules apply. Additionally, a digit cannot repeat in a cell which is at a knight's step ( as in chess ) from itself.

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PUZZLE NO. 166 : Consecutive Pairs Sudoku

 

RULES : Classic sudoku rules apply. If a grey circle is given between two adjacent cells, then the numbers in those cells will be consecutive. Not all grey circles are given, which means adjacent cells without a grey circle may or may not contain consecutive digits.

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PUZZLE NO. 165 : Arrow Sudoku

 

RULES : Classic sudoku rules apply. Additionally, there are some arrow shapes in the grid.The sum of the digits along the path of each arrow must equal the digit in the circled cell. Digits may repeat along an arrow.

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PUZZLE NO. 164 : EXTRA REGIONS SUDOKU

 

RULES : Classic sudoku rules apply. Additionally, each group of nine shaded cells must also contain the digits 1 to 9.

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PUZZLE NO. 163 : Disjoint Groups Sudoku

 

RULES : Classic sudoku rules apply. Additionally, no digit can appear in the same position in different 3x3 boxes.

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