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.
Friday, 20 February 2026
Wednesday, 21 January 2026
Puzzle No. 492: Odd-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.
Cells containing green circles contain only odd digits.
Adjacent digits along each green line have a difference of at least 5.
Saturday, 17 January 2026
Puzzle No. 491: 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.
Saturday, 10 January 2026
Puzzle No. 490: Killer 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.
Wednesday, 31 December 2025
Puzzle No. 489: German Whispers - X Sums 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.
Adjacent digits along each green line have a difference of at least 5.
The clues outside the grid indicate the sum of the first X digits placed in the corresponding direction, where X is equal to the first digit placed in that direction.
Saturday, 27 December 2025
Puzzle No. 488: Thermo - X Sums 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 thermometer shapes in the grid. The digits are strictly in increasing order from the bulb to the flat end of each thermometer.
The clues outside the grid indicate the sum of the first X digits placed in the corresponding direction, where X is equal to the first digit placed in that direction.
Friday, 19 December 2025
Puzzle No. 487: Incomplete Arrow Sudoku 6x6
Rules: Place a digit from 1 to 6 in each empty cell so that each digit appears exactly once in each row, column and 2x3 outlined box.
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.
Monday, 15 December 2025
Puzzle No. 486: 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.
Each digit in the grid represents the height of the skyscraper in each cell. The digits outside the grid indicate the number of skyscrapers seen from the corresponding direction.
Friday, 12 December 2025
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.
Monday, 8 December 2025
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.
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A very happy new year to all of you. Welcoming the new year with a thermo sudoku. I had created this sudoku before the 2019 themed thermo s... -
RULES : Classic sudoku rules apply. Adjacent digits along each marked line have a difference of at least 5. -
RULES: Classic Sudoku rules apply. Additionally, digits along the given lines read the same from either direction on the line. -
RULES : Classic Sudoku rules apply. Additionally, each group of nine shaded cells must also contain the digits 1 to 9. Online Solving -
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. Solve Onlin... -
Triple Sum Sudoku for GP practice RULES : Each row is divided into 3 parts. The 1st part is a 4-digit number, the 2nd part (sh... -
RULES : Classic sudoku rules apply. If a grey circle is given between two adjacent cells, then the numbers in those cells will be consecu... -
This classic sudoku is taken from my new book WORLD OF SUDOKU : VOL # 4. The book contains 120 handcrafted classic sudokus ranging from mo... -
It is an amazing feeling to reach 200 sudokus on my blog today. I had started this blog in the year 2017. The year 2020 started with Sudoku... -
My daughter is a big fan of BTS. So here is a BTS themed thermo sudoku on her order :) RULES : Classic sudoku rules apply. Additionally, ...
Puzzle No. 493: 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. Onl...
