When was the last time I posted a Sudoku Variant puzzle for the first time? I can’t remember. Especially a puzzle that is a combination of many popular variations of Su Doku.

The reason why I decided to create and post this puzzle is because one of the visitors to this website asked me about posting some more difficult Samurai Sudokus. He didn’t specifically ask for this kind, but instead of posting something that you are used to, I decided to make a variant I had never made before. If you want me to post various puzzles more often, please make a request what kind of puzzle you would like to see. I prefer to receive such requests in forms of comments here on the website, rather than e-mails.

So… after all this introduction, here is my first ever Diagonal Jigsaw Samurai Sudoku puzzle. Needless to say, it is a combination of Jigsaw Sudoku, Samurai Sudoku and Diagonal Sudoku. Obviously, you must follow the rules of all three of those variations of Su Doku.

Jigsaw Samurai X

for Wednesday, September 14, 2011. Difficulty: THINKER

Sudoku Variants are back!

Also, as a special gift and to make it up to you, I have prepared a brand new variant – Jigsaw TriDoku.
I think the puzzle is self-explanatory. It is a hybrid between Jigsaw Sudoku and TriDoku. Make sure to use the hexagon rule which can be found in the TriDoku introductory article.

Other TriDoku puzzles can be found in Sudoku variants category.

And finally, here is the puzzle.

TriDoku for Monday, August 30, 2010. Difficulty: THINKER

Comments? Questions? Please!

Anti-Chess Killer Sudoku contains a few hybrids, which combine multiple anti-chess variants. Here is a sample that is both Anti-King and Anti-Knight, meaning no two cells one king’s move OR one knight’s move away from each other can have the same value.

MEDIUM Version
INSANE Version

The answer to both versions is the same and is here

After a couple of Killer TriDokus and a TriDoku X, I’d like to show you a classic TriDoku puzzle but somewhat more difficult (or so I think).

For those who are still unfamiliar with this type of triangular Sudoku variation puzzle, please refer to the introductory article.

Other TriDoku puzzles can be found in Sudoku variants category.

And finally, here is the puzzle.

TriDoku for Monday, June 14, 2010. Difficulty: IQ

Comments? Questions? Please!

Here’s another Anti-Chess sample puzzle: this one’s a bit harder than the last one.

This one’s a HARD (4/5…BRAIN/IQ) Anti-King Killer
(this puzzle was originally classified insane, but is actually easier than the insane puzzles in the book)

Anti-King means that no two cells one king’s move move away from each other in chess can have the same value. In other words, in addition to the rules of regular sudoku, no diagonally adjacent cells can have the same value.

I have posted a visual walkthrough and solution for this puzzle on the forums here

the solution is here

It’s been quite a while since I last posted a CalcuDoku puzzle. I’m going to fix that now and to make it up to you, it will be a somewhat special variant of Square Wisdom puzzles.

It’s an overlapping, 2 in 1 (Gattai-2), CalcuDoku puzzle, which is essentially in a TwoDoku layout.

Remember the rules: there are no 3×3 nonets (nor any other kind of nonets). You only need to make sure that each row and each column contain one occurrence of each digit. And finally, unlike Killer Sudoku puzzles, in CalcuDoku puzzles numbers can be repeated in each cage!

Of course, if you need assistance with cage combinations, you can use the CalcuDoku calculator.

2 in 1 overlapping CalcuDoku for Wednesday, May 12, 2010 – Difficulty: IQ

Remember the TriDoku puzzles? Here is a new one. It’s a second one in Killer format, give it a try!

Killer TriDoku puzzles: all standard rules of Killer Sudoku apply + of course the TriDoku rules.

TriDoku Killer Sudoku for Monday, February 22, 2010. Difficulty: THINKER

(when you click&download the puzzle it won’t look so blury, I promise!!!)

The solution is here

Since I stopped with the

Daily Hidoku

puzzles, I never really posted one puzzle of this species for you. Sorry about that, here it is now!

By the way, the two Hidoku books I published should be solved in reverse order. Why? Because the puzzles in Volume 1 are slightly more difficult than the puzzles in Volume 2!

The rules of Hidoku can be found here.

10×10 Hidoku for Monday, April 12, 2010.

Some of my books are being heavily discounted at the moment. Before I introduce them to you once more, let me kindly ask you again to review my books on Amazon if you buy them. If you have already bought them, you can still do that. It means A LOT to me!

From what I know, there will be no further reductions in prices. And the prices on these books might go back up! So now is the best time to get them.

Here is a new variant of Outside Sudoku puzzles: Sudoku Straights.
The rules of Outside Sudoku are explained here.
The rules of Sudoku Straights are explained here.

Now, all you need to do is combine them and apply them both. It’s a rather difficult puzzle (or so I think).
What do you think?

Outside Sudoku Straights for Friday, March 12, 2010 – Difficulty: IQ.