Clueless LOCO Sudoku

Here is a new puzzle I think you’ll like. It’s another LOCO Sudoku puzzle, however, it is not in Samurai format, but for the first time, it is in Clueless Sudoku format instead.

Before you try solving this puzzle, please become familiar with the Clueless Sudoku puzzles and with the Loco Sudoku puzzles, too.

Just to help you out with the instructions for this particular puzzle. There are 9 puzzles which all seem to be separate from the rest, each on its own. However, there is a trick! There is also a 10th puzzle which comprises of the 9 central nonets (3×3 boxes) from each of the 9 puzzles. The 10th puzzle is a plain old classic 9×9 Sudoku (aka “vanilla sudoku”). The name “clueless” comes from the fact that the 10th puzzle starts completely clueless (i.e. empty), because all 9 central nonets start without any clues! Get it?

Now… since this is a LOCO sudoku variant, I must tell you what the 9 constituent puzzles are:

  • TOP LEFT: jigsaw sudoku
  • TOP CENTER : NON-CONSECUTIVE sudoku (it looks like vanilla but it is not!!!)
  • TOP RIGHT: jigsaw combination sudoku
  • MIDDLE LEFT: hyper sudoku
  • CENTER PUZZLE: diagonal sudoku
  • MIDDLE RIGHT: inequality sudoku (greater-less than)
  • BOTTOM LEFT: consecutive sudoku
  • BOTTOM CENTER : partial odd-even sudoku (shaded=odd, square=even, blank=unknown!)
  • and BOTTOM RIGHT: KILLER sudoku!

Again, I remind you that the 10th puzzle is a plain vanilla sudoku!

Are you ready for this!?

Clueless LOCO Sudoku puzzle (Multi Sudoku 9+1 in 1)

To access this puzzle click here.

PDF Version of this puzzle: Clueless LOCO Sudoku puzzle in PDF.

Posted in Free sample puzzles, Jigsaw Sudoku, Killer Sudoku, Sudoku Variants | Tagged , , | Leave a comment

Cuckoo Sudoku

First book of the season Fall 2017 has been published! In fact, it’s been available for pre-order for about 6 months, but as of yesterday, it is available for immediate shipment (while stocks last, of course).

The book is called “Cuckoo Sudoku” and no, it’s not my puppy on the cover. It contains only LOCO SUDOKU variants puzzles and what’s important to know is that this book is SPIRAL BOUND! And it costs just $8.95!!! GO GET IT NOW!

Posted in General, Sudoku Variants | Tagged | Leave a comment

Puppy Diary and a New Puzzle :)

Here we go… this post is as personal as they get. There is a home video of me in it. And my puppy. And an Instagram post. And a free puzzle. I think I got your attention. Good.

If you are wondering why this personal post all of a sudden, you haven’t subscribed to my newsletter yet. Changes are coming to this site. Slowly. So stay tuned and subscribe. It’s free.

So I got a Border Collie puppy. Name is Cash. In Serbian language it is pronounced a bit more sharply than in English, you will soon hear me say it a few times. Why Cash? Because “Tango & Cash”. And I dance Tango, a lot.

Cash has been with me for 3 weeks now; however, I went sailing for a week and my Mom came over to take care of him. A couple of days after I got him I started clicker training him. I am amazed by his intelligence! Border Collies really are the smartest dog breed around. The video you are about to see was shot a day before Cash’s 3-month birthday. Unfortunately, I give him commands in my language, so you gotta trust me that he does what I tell him to do. If I ever post another video I will try to sound over my comments in English. Anyway… here is the video of me and Cash clicker training at my home.

I also posted a short clip of Cash on my Instagram. It was taken 2 days after I got him, before we started training.


I’ve been making Odd Even Sudoku puzzles for years, but this one I’m posting now is a bit different. It contains only PARTIAL Odd Even information. So, not all cells are marked as odd or even as before. Instead, only some of them are labeled. Shaded cells must be Odd. Cells with a square must be Even. No shade, no square? Could be either odd or even!

And of course it is not a vanilla Sudoku. It is Partial Odd Even Samurai Sudoku and it’s supposed to be a bit difficult. Here we go:

Partial Odd Even Samurai Sudoku – Overlapping Sudoku Samurai variant – Gattai 5

Click on the puzzle thumbnail to access the puzzle.

PDF Version of this puzzle: Partial Odd Even Samurai Sudoku puzzle in PDF.

Posted in General, Samurai sudoku | Tagged , | 6 Responses

New Overlapping Sudoku – Gattai 8

Hey, it’s been a while since my last post… September is the month which marks an anniversary of this website, so I’m gonna start posting more often and possibly, on some non-puzzle related topics. Not sure yet, but it might happen. Stay tuned.

Anyhow… Unless I’m mistaken, I haven’t posted a puzzle of this type before. It’s a gattai 8 overlapping sudoku, just like sudoku harakiri, but in a different arrangement of puzzles. Those who like Super Samurai Sudoku or Harakiri Sudoku (by the way, the Harakiri book is currently discounted by $2!!!) will surely like this one.

Here it is… it’s labeled IQ for difficulty, but it’s not really all that hard. Oh, I nearly forgot: it requires a heavy use of the Twin Nonets solving technique.

Sudoku Cross – Overlapping Sudoku variant – Gattai 8

To access this puzzle click here.

PDF Version of this puzzle: Sudoku Cross Gattai 8 variant sudoku puzzle in PDF.

Posted in Free sample puzzles, Samurai sudoku, Sudoku Variants | Tagged , | 1 Response

Little book of Trigons puzzles

A new volume with nothing but TRIGONS puzzles has been released.

This time, it’s a smaller (and much cheaper) book than the first book of trigons and the big book of trigons I published before.

Numerous new designs and patterns of trianglons feature in this book! The combinations are endless and they never become boring.

There are altogether 67 puzzles in this little book which is 6″x9″ in size, so it is easy to carry around with you on the beach or wherever you will be solving the puzzles this summer. 10 puzzles are 0 to 5 and out of those 10, 9 of them are the so called Zero Trigons, which are more difficult to solve! Then, there are 53 “standard” trigons, 0 to 6 in size, and 6 of them are Zero Trigons (some trigons sums in the puzzle are unknown at the start!). At the end, there are 4 puzzles 0 to 7 and one of them is a “zero”.

One thing is for sure – for it’s size, this book surely packs a punch! You will be challenged!

Posted in Puzzle books | Leave a comment

Outside Sudoku Compendium

Here is a new compendium I made. This time it’s a book full of Outside Sudoku puzzles and the variants of this variant, including:

  • 50 classic (aka “vanilla”) outside sudoku puzzles in all levels of difficulty
  • 30 outside jigsaw sudoku
  • 10 outside diagonal sudoku
  • 10 outside odd-even sudoku
  • 10 outside consecutive sudoku
  • 10 outside non-consecutive sudoku
  • 5 outside hyper sudoku
  • 5 outside twodoku
  • and one bonus puzzle 🙂

For a total of 130 Outside Sudoku puzzles (plus the bonus one).

What are you waiting for? 🙂

Posted in General, Jigsaw Sudoku | Tagged | Leave a comment

Diagonal Samurai Sudoku X

In case you missed it, I’ve already published one Sudoku Samurai variant book a few days ago and here is another one.

This time, it’s a Samurai X book, which is waaaay overdue (and I mean: years), but hey, better late than never, right?

So, 100 Diagonal Sudoku Samurai puzzles of all difficulties in a book for just $9.99, that’s a great deal! Oh, and it’s printed in a large font, which makes it easy on your eyes.

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Posted in Samurai sudoku | Tagged , | 2 Responses
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