Puzzle No. 505: 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

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Puzzle No. 504: Even Sandwich 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 all numbers in that row or column surrounded by even numbers on both sides (”sandwiched”). Clues can be given in any order, and all such numbers are given. If a clue is a ‘–’, then no values in that row or column are sandwiched between two even numbers.

Online Solving Link to Penpa 

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Puzzle No. 503: Diagonal Skyscraper 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 are skyscraper clues: Each digit in the grid is a "skyscraper" whose height is the digit in that cell. Taller or equally tall skyscrapers obscure the view of smaller or equally small ones. Numbers outside the grid indicate the number of skyscrapers that can be seen (along the indicated diagonal) from that vantage point.

Online Solving Link to Penpa

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Puzzle No. 502: Point to Next 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. 

For each number ‘N’ placed in a cell with an arrow, the number ‘N+1’ is pointed at by the arrow.

Online Solving Link to Penpa 

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Puzzle No. 501: Numbered Rooms 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 appear in the Xth cell from that clue, where X is the first cell seen by the clue.

Online Solving link to Penpa

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CHALLENGING SUDOKU: VOL # 1 - NOW AVAILABLE ON PUZZVERSE APP ON ANDROID

 

Dear Friends. My book Challenging Sudoku: Vol # 1 is now available on Playstore on Puzzverse App.

The book is available to purchase in three parts - each part containing 50 sudokus. You can buy and play directly on the app. 

Here is the link to the app: https://play.google.com/store/apps/details?id=com.puzzverse.com

    

Puzzle No. 500: Arrow-Sum Sandwich-Kropki Pairs Sudoku

 

Hi all. It really feels great to reach 500 Sudokus on my blog. When I started the blog, I never imagined I would come this far. To celebrate this milestone, I am offering a discount of 20% on pdf copies of all books available on payhip. Here is the link  https://payhip.com/worldofsudoku 

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. 

Clues outside the grid represent the sums of the digits sandwiched between the 1 and the 9 in that row or column.  

A black dot between two digits means one of them is double the other. Not all possible black dots are necessarily given. 

Online Solving Link to Penpa   

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Puzzle No. 499: Thermo 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 thermometer shapes in the grid. The digits are strictly in increasing order from the bulb to the flat end of each thermometer.

Online Solving Link to Penpa   

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Puzzle No. 498: Extra Regions 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. 

Each group of nine shaded cells must also contain the digits 1 to 9.

Online Solving Link to Penpa

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Puzzle No. 497: Odd Even Sudoku

 

Rules: Classic Sudoku rules apply. Cells containing grey circles contain only odd digits. Cells containing grey squares contain only even digits.

Online Solving Link to Penpa

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