Place each of the numbers 1 to 9 into each of the rows, columns and bold-lined 3-by-3 boxes. You must also place the numbers in each dashed-line cage so that they add up to the given total.
The normal rules of Killer Sudoku apply, except, the usual 3x3 blocks have been replaced by irregularly shaped, coloured blocks (which must contain all the digits from 1-9).
The normal rules of Killer Sudoku apply. In addition, each coloured extra region must also contain all the digits from 1-9.
The normal rules of Killer Sudoku apply. In addition, both main diagonals (marked) and all cells of the same colour must also contain all the digits from 1-9.
The normal rules of Killer Sudoku apply. In addition, both main diagonals must also contain all the digits from 1-9.
9x9 and 12 x 12 formats
These Killer Sudoku puzzles have had the outlines of their cages removed, but the original rules apply, so that each row, column and 3x3 block should contain the digits 1-9. The sum of the digits for each missing cage is located, as usual, in the leftmost cell of the top row of that cage. No digit can be repeated within a cage, and there are no single cell cages.
The normal rules of Killer Sudoku apply. In addition, the grid is divided into coloured cells. Cells of the same colour must also contain all the digits from 1-9.
Usual sudoku rules apply. Also, the numbers in the shared set of 3 by 3 box is filled in identically, for both of the individual sudokus.
To begin, look at the digit which occurs most frequently in the grid. In which rows, columns and boxes is it missing? Also look at rows, columns and boxes which are almost complete – which numbers are missing and where could they go? The rest is up to you!
Complete the grid so that every row, column and 3x3 box contains every digit from 1-9 inclusive.
Levels 1-5. Available daily.
©DJB. Dist. Knight Features. All rights reserved.
Complete the grid so that every row, column and coloured box contains every digit from 1-9 inclusive.
©DJB. Dist. Knight Features. All rights reserved.
Usual sudoku rules apply. Also, 1 to 9 appears in the four shaded
3x3 squares.
Formats available: tif
Frequency/Availability: Weekly
Each row, column and irregular shaped area contains 1 to 9.
Formats available: tif
Frequency/Availability: Weekly
Fill in the grid so that every row, column and coloured box contains ALL the numbers from 1 to 6. Each puzzle has a bonus clue to get you started!
Formats available: tif
Frequency/Availability: Daily
Classic Sudoku too small? Try the Monster!
Formats available: tif
Frequency/Availability: Weekly
Usual sudoku rules apply. Also, the main diagonals (shaded) contain 1 to 9
Formats available: tif
Frequency/Availability: Daily
Four Sudoku puzzles joined by a common edge.
Formats available: tif
Frequency/Availability: Daily
© JFS/Knight Features
Usual sudoku rules apply. Also, 1 to 3 appears in the normal squares,
4 to 6 in the dashed circles and 7 to 9 in the dashed squares.
Formats available: tif
Frequency/Availability: Weekly