Tag Archives: Zero Killer Sudoku

Saturday Special – Zero Killer TwoDoku

Here is very difficult Killer Sudoku puzzle. There are two Zero Killer Sudoku puzzles overlapping each other in the TwoDoku format. The difficulty is rated IQ. What do you think? Zero Killer Twodoku for Saturday, September 20, 2008 Click on the puzzle thumbnail to access the puzzle. Tweet

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Revenge of Killer Sudoku volume 2: 150 puzzles

This doesn’t need much introduction: Revenge, volume 2 is ready! (click on the cover page to go to lulu and buy!) US $5.99 or £3.30 or €4.82 (PDF e-book) (payable by PayPal or credit card) Same format, same difficulties, NEW puzzles! Brand new puzzles, with the same intensity and intricacy as the old ones. The […]

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Samurai Sudoku puzzles now every Saturday!

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 Tuesday. There will be no change there. Also, I must apologies for the delay in […]

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Twin Zero Killer Sudoku

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! Click on the puzzle thumbnail to access the puzzle. Tweet

Posted in Free sample puzzles, Killer Sudoku | Also tagged , , , , , , , | 3 Responses

Twin Zero Killer Sudoku

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. Click on the puzzle thumbnail to access the puzzle. Tweet

Posted in Free sample puzzles, Killer Sudoku | Also tagged , , , , , , | 3 Responses

Revenge of Killer Sudoku: 150 puzzles

About a year after my first Killer Sudoku book, I am ready to present you with a completely new book with my Killer Sudoku puzzles: Revenge of Killer Sudoku: 150 puzzles has been released! (click on the cover page to go to lulu and buy!) US $5.99 or £3.30 or €4.82 (PDF e-book) (payable by […]

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Clueless Zero Killer Sudoku

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 Clueless format. Once more I want to thank Ruud for inventing the “Clueless” arrangement of […]

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Posted in Free sample puzzles, Killer Sudoku | Also tagged , , , , , , , | 12 Responses
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