PUZZLE NO. 218 : 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. 217 : EQUAL SUM SUDOKU

 

RULES : Classic Sudoku rules apply. The given Xs mark groups of four cells in which two pairs of diagonally opposite numbers add upto the same sum. Not all Xs are marked.

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PUZZLE NO. 216 :ODD EVEN-THERMO-ARROW-KILLER-LITTLE KILLER-XV PAIRS-KROPKI PAIRS-QUADRUPLE HYBRID SUDOKU

 

RULES : Classic Sudoku Rules apply. Additionally,

• Odd Even Sudoku rules apply ; i.e. grey circles contain odd digits ; grey squares contain even digits;
• Thermo Sudoku rules apply ; i.e digits along the thermometer will strictly increase from the bulb to the flat end;
  
• Arrow Sudoku rules apply ; i.e. the sum of the digits along the path of the arrow must equal the digit in the circled cell. Digits may repeat along an arrow;
• 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 numbers in that cage. Numbers do not repeat in a cage;
• Little Killer Sudoku rules apply ; i.e. 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;           
• XV Pairs Sudoku 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;
• Kropki Pairs Sudoku 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;
• Quadruple Sudoku rules apply ; i.e. 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. 215 : MISSING ARROW SUDOKU

 

RULES : Classic sudoku rules apply. The grey lines represent incomplete arrows. The digit on one end of each line is the sum of the other digits on the same line. Digits may repeat along the lines.

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PUZZLE NO. 214 : CLASSIC SUDOKU

 

This classic sudoku is taken from my new book WORLD OF SUDOKU : VOL # 4. The book contains 120 handcrafted classic sudokus ranging from moderate to tough. This sudoku was also featured on the YouTube channel Cracking The Cryptic today.

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 : VOL # 4

 

Hello all,

                It gives me great pleasure to share with all of you that WORLD OF SUDOKU : VOL # 4 is now available as paperback on amazon and as pdf on payhip. 

                 The book contains 120 classic sudokus ranging from moderate to tough. All the sudokus are test solved by Bakpao. The book also covers various advanced strategies like x wing,  xy wing , swordfish , skyscrapers , unique rectangles etc that are required to crack tough sudokus. I have also provided online solving link with automatic answer check for each sudoku for the people who like to solve online. 

                 The links to the book are given below.

   Link to amazon  https://amzn.to/323nxGY

   Link to payhip    https://payhip.com/b/0DYU

                  Happy solving !