The Home of Perfect Sudoku and other puzzles
Killer Sudoku and variants thereof, including Zero Killer, Killer Samurai Sudoku, Killer Flower Sudoku and more. Solving techniques for Killer Sudoku also explained here. Killer Sudoku books.
I’m sure you’ll be happy to hear this: from this Saturday, June 7, 2008, I will start showing Samurai Sudoku puzzles every Saturday on the Samurai Sudoku page. This is an addition to Samurai X puzzles which are shown every…
Rules: Solve the puzzle so that the left half and the right half have the same solution. Other than that, the usual Killer Sudoku rules apply. Twin Zero Killer Sudoku for Saturday, March 15, 2008. WARNING: Very difficult!
Rules: Solve the puzzle so that the left half and the right half have the same solution. Other than that, the usual Killer Sudoku rules apply. Twin Zero Killer Sudoku for Saturday, December 15, 2007.
To celebrate the 2nd anniversary of my first truly “INSANE” Killer Sudoku, posted on September 27, 2005, this week’s Kakuro is rather large and fairly difficult. Let me know how you like it.
This could well be the most difficult puzzle I’ve ever created. Yet, unlike some previous ones which were intentionally created to require trial&error, this one can surely be solved without guessing. This is a Zero Killer Sudoku puzzle in a…
A few visitors to my forum have been creating these puzzles for quite some time. Well, here is one from me. Rules: Everything is exactly the same as in your ordinary Killer Sudoku puzzles, except that there are even fewer…
I promised to explain this technique, which applies to Jigsaw Sudoku (aka irregular blocks) puzzles, a while ago, so it’s time to keep the promise. You can find the same technique explained on various other sites, too. This technique is…
Here is another unique puzzle – Non-Consecutive Killer Sudoku. If you ignore the non-consecutive rule, this puzzle has many solution. So, you must be careful not to place any two consecutive numbers next to each other! Then, the puzzle has…
Here is something brand new – an Odd/Even Killer Sudoku puzzle. If you ignore the odd/even part, this puzzle has many solution. So, you must use the grey cells (and not only those in your head) in order to solve…
“I think this one is quite difficult” – is what I would be tempted to say if I didn’t have such an army of intrepid solvers for audience. So, I won’t say that. See for yourself and let me know…