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 […]
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 […]
For die hard fans of big Sudoku puzzles, here is another one – Sudoku Harakiri X! Basically, it’s a double-Samurai Sudoku puzzle: 8 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 must also pay attention to diagonals: ALL […]
It’s about time I finally explained the basic (and most common) Sudoku solving techniques. Most of you are already familiar with these, but for those who aren’t – I’d like to show my explanation. These techniques are used in ALL sudoku puzzles – Classic, Killer, Samurai and others. Make sure you fully understand them before […]
Here is another of our unique Butterfly Samurai puzzles! It consists of 20 (twenty) classic 9×9 Sudoku sub-puzzles. This one is somewhat more difficult than the previous one, so be warned! There are 5 groups of 4 puzzles. Each group of 4 is arranged Butterfly-style, and those5 groups are arranged Samurai-style. Please make sure you […]
Here is this weekend’s special – a unique and never-seen-before Killer Butterfly X There are 4 “classic” 9×9 Sudoku puzzles inside this one. They all overlap and they all must be solved according to the rules of Sudoku and Killer Sudoku. You can use Twin Nonets solving technique for this one! However, in contrast with […]
Yet another – first ever – puzzle from Perfect Sudoku – Sudoku Harakiri X! Basically, it’s a double Samurai Sudoku puzzle: 8 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 must also pay attention to diagonals: ALL diagonals […]
I don’t know if there is a species that go under that name and if there are, my apologies to them. Another world premiere Sudoku variation puzzle – Butterfly Killer Sudoku. Thanks to one of our regular visitors udosuk for suggesting this concept – this should encourage you to suggest a layout for overlapping puzzles […]
