PUZZLE NO. 308 : 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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PUZZLE NO. 307 : KILLER-KROPKI PAIRS-XV PAIRS HYBRID SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, 

• Killer Sudoku rules apply, i.e., there are some cages in the grid. The number on the top left corner of each cage is equal to the sum of the digits in that cage. Digits do not repeat inside a cage.  
• Kropki Pairs rules apply, i.e. 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. 
• XV Pairs rules apply, i.e., 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 not marked;

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PUZZLE NO. 306 : GERMAN WHISPERS SUDOKU

 

RULES : Classic Sudoku rules apply. Adjacent digits along each marked line have a difference of at least 5.

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PUZZLE NO. 305 : Sudo-Kurve Sudoku

 

RULES : Place a digit from 1 to 9 in each empty cell so that no digit repeats in any row, column or bold region. Some rows & columns bend as indicated by following the grey lines.

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PUZZLE NO. 304 : NEIGHBOR SUMS SUDOKU

 

RULES : Classic Sudoku rules apply. Additionally, some edges are marked with the sums of the digits in the adjacent cells.

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PUZZLE NO. 303 : THERMO-LITTLE KILLER-KROPKI PAIRS HYBRID SUDOKU

 HAPPY VALENTINES'S DAY TO ALL

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, numbers with arrows outside the grid indicate the sum of the digits in the corresponding direction. Digits may repeat in the corresponding direction.

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. All possible dots are not marked.

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PUZZLE NO. 302 : THERMO SUDOKU

IT'S ISC 2021

This puzzle was created by me for ISC 2021. But the testers found it a bit hard for a contest. So I am posting it on my blog.

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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WORLD OF SUDOKU : VOL # 5

                                           

 

Hi all !

           My 5th book in the series World Of Sudoku is now available in all the international markets of amazon as paperback. It is also available in digital format on payhip. The book contains 120 handcrafted sudokus covering 10 different mathematical variants. There are two variants each using addition, subtraction, multiplication & division operators and two variants that use a mix of mathematical operators. Each variant is explained in details with the help of illustrations. All sudokus are test solved by Swaroop Guggilam and his timings for each sudoku are mentioned. Also, online solving link for each sudoku is also provided. The sudoku on the cover page is a hybrid of all ten variants and is also solvable.

            I am sure that this book will be liked and appreciated by sudoku solvers. 

            The links to the book are given below :

  Link to amazon : https://amzn.to/3wHfAWl

  Link to payhip : https://payhip.com/b/PZXnl

           Happy solving !

PUZZLE NO. 301 : THERMO-ARROW 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. 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. 300 : HYBRID SUDOKU

 

RULES : Classic Sudoku rule applies. There are three grey lines in the grid. One line follows Renban Sudoku rules; one line follows Palindrome Sudoku rules; one line follows German Whispers Sudoku rules. It is for the solver to determine the characteristics of each line. The white and black dots are kropki dots. Converse rule does not apply.

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