I promised something special with the Clueless concept before – and here it is: my first ever Clueless Killer Sudoku puzzle. Again, thanks to Ruud from www.sudocue.net for inventing the “clueless” concept. There are 9 Sudoku puzzles with no overlapping regions! If you attempt to solve them individually – you won’t get far. Here is […]
Here is another Sudoku overlapping puzzle variation. As far as I know, it was invented by Ruud from www.sudocue.net – please correct me if I’m wrong. So I thought I should give it a go at creating one such puzzle – and of course I had to add something to it. So, my variation is […]
Samurai Sudoku X for Tuesday, April 4 – this is the only place you can find these kind of Sudoku puzzles! Basically, not only do you have to fight against 5 interconnected Sudokus, but you also need to be careful about the diagonals: ALL diagonals in the puzzle must contain one occurrence of each 1-9 […]
This Weekend’s special is a brand new Sudoku puzzle that I have never posted before. It’s a greater/less than sudoku variant. All standard sudoku rules apply. You don’t have any numbers to start with, instead, there are clues which cells contain numbers that are greater/smaller than the numbers in adjacent cells. I’m sure you’ve seen […]
More unique Sudoku puzzles that you’ve never seen before – for die hard fans of big Sudoku puzzles, here is another one – Double Sudoku Harakiri X! There are 13 classic sub-puzzles, which of course don’t have their own (unique) solutions but all together constitute a puzzle with a single solution. This time, however, you […]
Samurai Sudoku X for Tuesday, March 28 – this is the only place you can find these kind of Sudoku puzzles! Basically, not only do you have to fight against 5 interconnected Sudokus, but you also need to be careful about the diagonals: ALL diagonals in the puzzle must contain one occurrence of each 1-9 […]
Weekend Special: Butterfly Samurai Killer Sudoku with diagonally adjacent cells! This puzzle consists of 20 (twenty) 9×9 Sudoku sub-puzzles. There are 5 groups of 4 puzzles. Each group of 4 is arranged Butterfly-style, and those 5 groups are arranged Samurai-style. Please make sure you understand how the puzzles are arranged before attempting to solve the […]
A while ago I explained the X-Wing solving technique. Recently I shown my explanation of other basic, Classic Sudoku solving techniques. The only remaining solving method that I don’t consider trial and error is Swordfish. So, to complete the list of Sudoku solving tips, here is an example of a Sudoku puzzle that can be […]
