DJ Ape .Net – The Home of Perfect Sudoku

I just noticed that many of my books have been discounted, so now is the time to get them!

Revenge of Killer Sudoku vol. 1 goes for $8.95
The Way of Samurai vol. 1 goes for $9.95
Killer Samurai Sudoku vol. 1 for $9.95
My first Kakuro book for $8.95
Sudoku Straights also for $8.95

This is just a reminder that tomorrow, on Sunday, February 28, 2010, my Samurai Sudoku puzzles will restart in the Comics section of The Washington Post.

Also, I am pleased to announce that I’ve made a deal with Kinokuniya bookstore from New York City. They will offer for sale all of my books, all 28 of them! So, if you are strolling down Manhattan, go to 1073 Avenue of the Americas and at least have a look at the hard copies of my books. I bet you’ll like them! Please let me know what you think of them and even more importantly, how they are presented in the Kinokuniya bookstore.

Good news folks!

The Washington Post have decided to restart printing my Samurai Sudoku puzzles in their Comics section of the Sunday issue… thanks to YOU! Apparently the readers have been clamoring for the return of Samurais and the editors had no other choice but to change their minds only a month after they decided to stop.

This makes me really proud and I don’t know how to thank you folks.

I’m still uncertain when precisely will the first puzzle be printed, but I think it will be 10 days from now, on Sunday, February 14. Stay tuned for confirmation of this.

UPDATE: I just found out that The Washington Post will restart with my Samurais on Sunday, February 28, 2010!

It’s been a while since I last posted a Samurai Sudoku variant puzzle. Here is a new one. As far as I remember, I never posted such puzzle before.

Remember: shaded cells MUST contain only ODD numbers!

OddEven Jigsaw Samurai Sudoku for Thursday, January 14, 2010 – Difficulty: COOL.

Bad news folks, I’m afraid: the Samurai Sudoku puzzle printed in the Comics section of The Washington Post on Sunday, December 27, 2009, would’ve been the last Samurai puzzle printed in this newspaper. After four years and more than 200 Samurai puzzles, they have decided to stop this feature.

From the editor: “The change is part of a larger agreement … and is not a result of any dissatisfaction with your puzzle.”

On the other hand, my Samurai puzzles will continue to feature in the Washington Express (the free newspaper) every Friday.

As a reminder to those who enjoy my Samurais, you can find two of them every week on the Samurai Sudoku page.

Or, you can order my books with Samurai puzzles here:

Here is a Christmas gift for you! Just in time for the holiday season, three new books have been published on Amazon:

That’s right, I listened to your requests and have prepared a book full of only ZERO Killers and nothing else!

These books will NOT be published through LuLu!

This should take you through the holiday season.

This is my largest CalcuDoku puzzle so far. Previously I published a CalcuDoku Samurai 7×7, but this time the puzzle is even larger:

8×8 CalcuDoku Samurai for Saturday, February 28, 2009.

Click to download the puzzle in your favorite format:

ALL OPERATORS version:

REDUCED OPERATORS version:

You can use my CalcuDoku Calculator to help you out with the possible combinations for a cage.

These puzzles are also available to newspapers, magazines and other publishers. Be the first to have my CalcuDoku puzzles printed! Interested? Send me an e-mail

png solution – final

Questions, comments and suggestions are more than welcome!

I’ve published 3 more books through CreateSpace: two new volumes of old books and one book that is new for Amazon. Here is what they are:

Although first two books don’t need too much introduction, here is a brief description:

80 classic, 20 diagonal and 5 surprise Samurai Sudokus! While all puzzles are new, one of the surprise Samurais is extra special: no such puzzle has ever been published before – it’s a Samurai Sudoku Straights puzzle.

Everything is exactly the same as in volume 1, except of course that the puzzles are all new.

and finally…

This book is completely new for Amazon. However, I must tell you that a few of the puzzles in this book have already been printed in my LuLu book “Hanjie: 60 puzzles”. For various reason it had to be that way, primarily because of the way these puzzles are created.

These books are also available for download as e-books from LuLu: