It’s been a while since I last posted a Killer Sudoku variation. As far as I can remember, you folks liked the Butterfly layout of the puzzles, so here is an overlapping, 4-in-1 (Gattai-4), Killer Butterfly Sudoku puzzles. You can also find these puzzles in my Killer Sudoku Compendium book. Killer Butterfly Sudoku for Friday, […]
As you may have noticed, I’ve changed things a little on the site, by removing some of the daily puzzles. While Daily Killer Sudoku and Daily Sudoku variation will remain, as well as bi-Weekly Samurai Sudoku, all other puzzles will be posted here, on the main page of the site. Expect at least a couple […]
Here is another Kendoku puzzle where some cells do not belong to any cage. And incidentally, it’s my first INSANE Kendoku, although I don’t think it’s so mad as some of my killers have been. 🙂 8×8 no-cages Kendoku for Thursday, October 15, 2008. CalcuDoku for Thursday, Oct 16, 2008Difficulty: INSANEClick on the puzzle thumbnail […]
Some may not like the fact that today’s puzzle isn’t actually a SquareWisdom puzzle, instead, it’s actually a true hybrid between Killer Sudoku and Kendoku. Having implemented Kendoku puzzles into my solver&generator program, it was a no brainer to extend it a little further and allow all four operators for my Killer Sudoku puzzles. And […]
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.
The two anti-chess variants anti-knight and anti-camel cannot both exist on a sudoku grid with the standard 3×3 nonets, so I’ve removed the nonets!  In chess, a knight moves 2 cells horizontally and 1 cell vertically or vise versa. Since this puzzle is anti-knight, none of the red X’s below can contain a 5 because the center […]
Djape has kindly granted me my own corner as well, which I will use to present my own hand-designed Saturday Specials. We’ll start things off with a big one. Samurai: This puzzle consists of 5 overlapping grids, which on their own don’t neccessarily have a unique solution, but together they do. X: Along the diagonal lines […]
