Puzzle No. 485: Sum Detector 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. 

The digit in each cell with an arrow must equal the sum of the values in one or more cells along the direction pointed at by the arrow, starting with the cell that the arrow points to directly.

Online Solving Link to Penpa

 Online Solving Link to Sudokupad

Puzzle No. 484: Before 9 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. 

Clues outside of a row or column tell you the sum of all of the digits appearing prior to the 9 in that row or column. The sum counts from the side of the grid where the clue appears.

Online Solving Link to Penpa  

Online Solving Link to Sudokupad

Sudoku Exotica: Vol # 2 - Now available on Amazon (in paperback form) and on Payhip (in PDF form)

 

My new book Sudoku Exotica: Vol # 2 has released and is now available on Amazon in paperback format and on Payhip in PDF format. This is the second book in the series Sudoku Exotica. The books in this series contain innovative and uncommon Sudoku Variants. 
The Sudokus are test solved by Édouard Lebeau and his timings for the same are also mentioned. All the Sudokus have Online Solving Links to Penpa as well as Sudokupad.

The book features the following Sudoku Variants:

• Slow Thermo Sudoku;
• Group Sum Sudoku;
• Odd Even Rossini Sudoku;
• Full or Half Sudoku;
• Faded Kropki Pairs Sudoku;
• Bouncing X Sums Sudoku;
• Ascending Starters Sudoku;
• Before 9 Sudoku;
• Pointing Digits Sudoku;
• Double Arrow Sudoku..

Link to Amazon for paperback   https://tinyurl.com/6cezr2rk

Link to Payhip for PDF     https://payhip.com/worldofsudoku   

 

Puzzle No. 483: Ascending Starters 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. 

Clues outside the grid indicate the sum of the first set of all ascending digits starting from the first cell from the corresponding side. Sets may consist of only one digit.

Online Solving Link to Penpa

Online Solving Link to Sudokupad

Puzzle No. 482: Pointing Digits 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. 

A digit N in a cell with an arrow indicates that the digit N is also in a cell N steps in the direction of an arrow. There may be other repeated digits in the direction of the arrow. Not all arrows are given. (For example, A 4 in a cell with an arrow means that there is a 4, 4 cells away in the direction of the arrow and there may be additional 4s in that direction.) 

Online Solving Link to Penpa

Online Solving Link to Sudokupad

Puzzle No. 481: Faded Kropki 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. 

Digits separated by a white dot must either be consecutive or be in a 1:2 ratio. Not all dots are given.

Online Solving Link to Penpa

Online Solving Link to Sudokupad

Puzzle No. 480: Double 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. 

Digits along a grey line must have the same sum as the digits in the circles connecting the line.

Online Solving Link to Penpa

Online Solving Link to Sudokupad

SUDOKU EXOTICA : VOL # 2 - COMING SOON

 

Puzzle No. 479: Bouncing X Sums 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. 

Clues outside the grid indicate the sum of the first X digits along the indicated diagonal, where X is equal to the first digit placed in that direction. If X exceeds the number of cells in the direction, the sum bounces off the edge at a 90-degree angle and continues. Digits may repeat in sums.

Online Solving Link to Penpa

Online Solving Link to Sudokupad

Puzzle No. 478: Quadruple-Quad Sum 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. 

Digits in circles must appear in the surrounding four cells, in some order.

Also, the white circle implies that one digit is the sum of the remaining three digits at that 2x2 square. Not all circles are given, i.e. there may or may not be additional 2x2 squares where one digit is the sum of the remaining three digits.

Link to Penpa

Link to Sudokupad