Friday 17 May 2024

Puzzle No. 434: XY Differences 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 outlined box. 
Horizontally adjacent cells marked by a diamond contain digits whose difference is equal to the first (leftmost) digit of the corresponding row.
Vertically adjacent cells marked by a diamond contain digits whose difference is equal to the first (topmost) digit of the corresponding column.
All such diamonds are marked.




Tuesday 14 May 2024

Puzzle No. 433: Group Sum-Renban Hybrid Sudoku 08 from the book World Of Sudoku: Vol # 10

 



A Group Sum-Renban Hybrid Sudoku from my new book - World Of Sudoku: Vol # 10. This Sudoku also featured on the YouTube Channel Cracking The Cryptic, covered by Mark. You can watch the video here

Rules: Place a digit from 1 to 9 into each empty cell so that each digit appears exactly once in each row, column and 3x3 outlined box. 
Numbers inside each circle indicate the sum of the digits in the cells covered by the corresponding circle. Digits may repeat in the cells covered by a circle. 
Each marked line contains consecutive digits, in any order.



Monday 13 May 2024

World Of Sudoku: Vol # 10


It gives me great joy to tell you all that my new book World Of Sudoku: Vol # 10 has been released and is available on Amazon in Paperback format and on Payhip in PDF format. The book contains 120 Handcrafted Sudokus covering 10 Hybrid Sudoku Variants. All the puzzles in the book are test solved by Ă‰douard Lebeau and his test solve timings are mentioned with each puzzle. Online Solving Links of Penpa as well as Sudokupad are also provided with each sudoku. The Variants covered in the book are:
  • X Sums-Consecutive Pairs Hybrid Sudoku;
  • Clone-Sum Frame Hybrid Sudoku;
  • Outside Palindrome Hybrid Sudoku;
  • XV Pairs-Skyscrapers Hybrid Sudoku;
  • Killer-German Whispers Hybrid Sudoku;
  • Group Sum-Renban Hybrid Sudoku;
  • Mathrax Pointing Evens Hybrid Sudoku;
  • Kropki Pairs-Little Killer Hybrid Sudoku;
  • Quadruples-Region Sum Lines Hybrid Sudoku;
  • Thermo-Arrow Hybrid Sudoku;
The links to Amazon and Payhip are given below:
Link to Amazon for Paperback  https://tinyurl.com/worldofsudokuvol10
Link to Payhip for PDF https://payhip.com/worldofsudoku

Happy Sudokuing!






 

Saturday 11 May 2024

Puzzle No. 432: Between 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 outlined box. 
Every digit on a grey line must have a value which lies between the values of the two digits in the circles at the ends of the line. Digits may repeat along a line.

Online Solving Link using Penpa

Online Solving Link using Sudokupad

Wednesday 8 May 2024

Puzzle No. 431: Killer-German Whispers Hybrid 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 outlined box. 
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 in a cage.
Adjacent digits along each green line have a difference of at least 5.



Saturday 4 May 2024

Puzzle No. 430: Consecutive Pairs 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 outlined box. 
If a grey circle is given between two adjacent cells, then the digits 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.



Wednesday 1 May 2024

Puzzle No. 429: Battenberg 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 outlined box. 
Wherever 2 odd and 2 even digits form a 2x2 checkerboard pattern, a Battenburg marking is given. If there is no marking, the above pattern is not allowed.

Online Solving Link using Penpa

Online Solving Link using Sudokupad
 

Sunday 28 April 2024

Puzzle No. 428: Lockout Lines 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 outlined box. 
Endpoints (Diamonds) must differ by at least 4. Digits on the line must be different than the endpoint values and must not fall between them. Each Lockout segment is treated as an independent Lockout Line. Digits can repeat if allowed by other rules.

Online Solving Link using Penpa

Online Solving Link using Sudokupad

Friday 26 April 2024

Puzzle No. 427: 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 outlined box. 



Wednesday 24 April 2024

Puzzle No. 426: Arrow 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 outlined box. 
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. 




 

Puzzle No. 434: XY Differences 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 outlined box.  Hor...