As promised, I am starting posting all sorts of puzzles here on the main page, on a semi-regular basis (2-3 times a week). And since today is Saturday, which used to be the day for Killer Sudoku 10×10 and tomorrow is Sunday, which used to be the day for Zero Killer Sudoku puzzles, quite appropriately, […]
Next in line – Kendoku with unknown cages! This is similar to “Zero Killer Sudoku” where some cells do not belong to any cages. This one is relatively easy, but rest assured there are more difficult ones to come! 🙂 7×7 Kendoku UC (unknown cages) for Tuesday, October 7, 2008. CalcuDoku for Tuesday, Oct 07, […]
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.
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.
Earlier this morning (CET) Novak Djokovic of Serbia won his first (and there are many more to come) Grand Slam title by defeating Jo-Wilfried Tsonga of France and thus became the first Serb to win a singles Grand Slam title. On his way to victory, Nole has beaten the likes of Lleyton Hewitt, David Ferrer […]
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.
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 […]
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 clues given to you to start with. Some cells are not joined in any cages, […]