Another interesting variation of Sudoku that will test your logic skills. **Killer Sudoku** follows the same sudoku rules except you are given clues in the form of totals for a group of boxes which will give clues from which you can deduce the numbers.

Killer Sudoku 1 and Solution - Download

The original killer sudoku page that was here has been moved. For reference it can be found here.

If you like Killer Sudoku puzzles then you will like Killer Samurai Sudoku.

¡coño! en lugar de poner colores ¿por qué no pones líneas y podemos imprimir en blanco y negro?

Comment 1 by JOSE MARIA HEREDERO. Made on the 04th Jan 2006.

I have a "butterfly brain. Killer suduko has helped me to concentrate for longer amounts of time. I enjoy solving them. Hint keep a sheet with all possible combimations of numbers. ie 8 being 1 and 7, 2 and 6 etc

Comment 2 by Bo. Made on the 17th Jan 2006.

Si quelqu'un a compris le reglement du sudoku Killer, faites moi signe, car les samourai n'ont plus aucun secret pour moi (en francais svp)

Merci bcp

Comment 3 by van26. Made on the 27th Jan 2006.

La soeule regle nouveau du sudoku killer est que dans chaque groupe de même couleur la addition équat la numero donné

Ca veut dire, dans le 1er sur cette page au debut où il y a la 17, les deux ne peuvent être que 8 et 9 comme seulement 8+9 = 17

Excuse mon francais, c'est pas ma langue maternelle, mais j'éspère qu'on peut comprendre cette expliquation.

Comment 4 by Mathias. Made on the 27th Jan 2006.

Merci bcp pour l'explication, je vais essayer tout de suite. Ton francais est tres bien. Merci encore.

Comment 5 by van26. Made on the 29th Jan 2006.

What is Sudoku?Sudoku is a Number Puzzle that requires no mathematical knowledge. (no adding or multiplication). It is based upon Japanese style crosswords where you are required to use logic to place numbers onto a 9x9 grid.

RulesTo solve the puzzle you must make sure that every column, row and 3x3 box contains the numbers 1 through to 9. Almost all of the puzzles can be solved using logic alone and there is no need to guess. A puzzle can take from 20 minutes to 2 hours to complete depending on its level and your experience.

Sudoku FactFor a 9x9 puzzle to have precisely one solution, the initial entries need to include at least eight of the nine digits.

Sudoku FactThe smallest number of starter clues on a sudoku puzzle is 17.

Sudoku FactSudoku became a world hit in 2005. When measuring its popularity in enigmatic world, it is the biggest phenomenon since Rubik's Cube in the '80s.

Sudoku FactSome people call it newspapers saver because it boosts their sales and keeps the reader audience active. Newspapers around the world embraced it immediately because people like to solve Sudoku on a daily basis, just like crosswords.

Sudoku FactBy playing it regularly you can boost your concentration and focus, prevent or ease depression, dementia and even Alzheimer's disease according to some studies.