This is the archive of the old posts from Djape .Net, more or less as they used to be. Please go to djape.net to see the new website.

Frame Sudoku

By djape | Published: March 4, 2014
A novelty for this site – Sum Frame Sudoku! 🙂 No, it’s not an Outside Sudoku. It’s more of a Killer Sudoku Variant: the numbers outside the grid tell you the sum of the 3 numbers closest to it. So, yes, in a way it is also similar to Outside Sudoku, but here you do have to process the sums of 3 numbers (always 3!), hence it is more a killer variant. The rest of the rules are standard Sudoku rules. I guess that’s clear enough for the rules of Frame Sudoku. If not, please ask questions. UPDATE: I decided to present you not one, but two frame sudoku puzzles! First one is EASY, the second one is BRAIN. 🙂 So enjoy!

Sum Frame Sudoku – difficulty EASY

Click on the puzzle thumbnail to access the puzzle.
Frame Sudoku book

Sum Frame Sudoku – difficulty BRAIN

Click on the puzzle thumbnail to access the puzzle.
Loco Sudoku Puzzle Book Cuckoo Wacky Quirky

Posted in Free sample puzzles, Killer Sudoku, Sudoku Variants | Tagged , | 6 Responses

Twin Killer Sudoku

By djape | Published: February 25, 2014
Here is another Twin Killer Sudoku puzzle for you! Remember… it’s a 2 in 1 Killer, but with no overlapping regions! Instead… The Rules: Solve the puzzle so that the left half and the right half have the same solution. Other than that, the usual Killer Sudoku rules apply. I’ve previously posted more puzzles like this one… for example, I’ve also posted a Twin Zero Killer Sudoku!

Twin Killer Sudoku

Click on the puzzle thumbnail to access the puzzle.
Fiendish Killer Sudoku Book

Posted in Free sample puzzles, Killer Sudoku | Tagged | 3 Responses

Sumo Sudoku

By djape | Published: February 12, 2014
Previously I referred to these puzzles as “Super Samurai Sudoku“. Well, I’m going to start calling them what others call them and that is Sumo Sudoku. Whatever you call them, there are 13 overlapping sudoku grids in each! Huge! And they overlap Samurai Sudoku style, so it’s like having 4 Sudoku Samurai puzzles on top of each other. Finally… this puzzle that I’m posting now is a consecutive sudoku variant. 🙂 Vertical and horizontal bars show cells which must contain consecutive numbers. Other adjacent cells must be non-consecutive.

Consecutive Sumo Sudoku variant

Click on the puzzle thumbnail to access the puzzle.
Double Samurai Sudoku Harakiri book

Posted in Free sample puzzles, Samurai sudoku | Tagged , | Leave a comment

Random puzzles

By djape | Published: February 9, 2014
Here are some randomly selected puzzles from all the puzzles I ever published here since 2005. You can also find them by browsing the Free Puzzles category. If you are on Facebook, please first click the “Like” button. You sharing my puzzles means a lot to me, because new visitors come and discover my puzzles. It also helps in keeping this website free!


















Posted in General | Tagged | Leave a comment

Killer Kakuro Non Consecutive

By djape | Published: February 5, 2014
As you may know, a while ago I started making Kenkuro puzzles and published a Kenkuro book. These puzzles are also known as Killer Kakuro and a new book with only those puzzles is coming soon! Anyway… as I like to make variants of all sorts of puzzles, here is a non consecutive variant of Kenkuro. So… solve the puzzle using numbers 1 to 9, never place two consecutive numbers next to each other horizontally or vertically and of course, follow the totals given for each region. The totals include the arithmetic operation (addition +, subtraction -, multiplication x, division ÷) which must be used in that region to obtain the total. Got it? If not, feel free to ask :). And of course let me know how difficult it is… this one is ranked MEDIUM.

Non Consecutive Kenkuro Kakuro variant

Click on the puzzle thumbnail to access the puzzle.
Medium Hard Kakuro Puzzles Book

Posted in Free sample puzzles, Kakuro | Tagged , , , , , , , , , | Leave a comment

Poker Straights

By djape | Published: January 31, 2014
Here is a new kind of puzzle, for this site for sure and at least I haven’t seen them elsewhere! Remember the Straights puzzle? Well, this is kind of like it… but it’s called POKER Straights. The reason being that there are all 13 “cards” in play… from 2 to 10 and then Jack, Queen, King and Ace. So… the rules are: in any region between two black squares (or between a black square and the border) the “cards” must constitute a poker straight. Now, in real poker, a straight is a set of 5 consecutive cards, but here there can be any number of cards in a straight, from 1 (any 1 card alone is a straight) to 13 (all 13 cards are, of course, a straight). Oh, and I nearly forgot… cards cannot be repeated in a row or a column! Now, DO NOT confuse this with Consecutive Sudoku! It is nothing like it. The cards in a region do not have to be in a consecutive order! For example, as we all know AKQJ10 is a straight. But also is KJA10Q. Or, 234 is a straight, but also is 423. Got it? Anyway… here is the puzzle. The difficulty is BRAIN!

Poker Straights Puzzle

Click on the puzzle thumbnail to access the puzzle.
Sudoku Straights, where Poker meets Sudoku

Please please please let me know what you think of this puzzle! 🙂
Posted in Free sample puzzles, Puzzle variants | Tagged , , , , , , , | Leave a comment

Non Consecutive Sudoku Samurai

By djape | Published: January 28, 2014
All those of you who are wondering where the weekly Samurai Sudoku puzzles are, well, first, please read this post. Then, get ready to be happy. 🙂 Here is today’s special puzzle: Non Consecutive Samurai Sudoku! Although it looks like your ordinary 5 in 1 Sudoku gattai overlapping Samurai puzzle, there is one additional rule which must not be forgotten: two consecutive numbers must not be placed next to each other! Other than that, everything else remains the same! By the way, there is a book full of Samurai Sudokus with additional rules, including 12 Consecutive Samurai and 12 NonConsecutive Samurai!

Samurai Sudoku – NON CONSECUTIVE variety

The difficulty of this puzzle is rated THINKER. Click on the puzzle thumbnail to access the puzzle.
Non Consecutive Sudoku book, volume 2

Enjoy! 🙂
Posted in Free sample puzzles, Samurai sudoku | Tagged , , , , , , , , | 1 Response

Jigsaw Tridoku

By djape | Published: January 23, 2014
I’ve previously posted one Jigsaw Tridoku puzzle and it was labeled THINKER. This one is a bit more difficult (or so I think?) and it’s labeled BRAIN. So… if you are unfamiliar with this concept, make sure to have a look at my introductory article on Triangular Sudoku. The rules and solving methods are there, too! And then of course… this is not a plain Tridoku, instead, it is an irregularly shaped, also known as squiggly sudoku or jigsaw sudoku! 🙂

Irregular Shaped Tridoku

Click on the puzzle thumbnail to access the puzzle.
Tridoku book Large print

Enjoy! 🙂
Posted in Free sample puzzles, Jigsaw Sudoku | Tagged , , , , , , , , , , | Leave a comment

Zero Killer Sudoku 10×10

By djape | Published: January 18, 2014
As promised, I am starting posting all sorts of puzzles here on the main page, on a semi-regular basis (2-3 times a week). And since today is Saturday, which used to be the day for Killer Sudoku 10×10 and tomorrow is Sunday, which used to be the day for Zero Killer Sudoku puzzles, quite appropriately, I would say, today’s puzzle is a mix of the two (and the first of its kind?):

Zero Killer Sudoku 10×10

– use digits 0 to 9 to solve this one! Click on the puzzle thumbnail to access the puzzle.
Zero Killer Sudoku, volume 2

And remember, the rule of 45 still applies! Be careful when analyzing possible cage sums, the addition of the 0 changes the game completely! Example: 3 over 2 cells is not necessarily 1+2 anymore! It could also be 0+3!!! Like it?
Posted in Free sample puzzles, Killer Sudoku | Tagged , , , , , | 2 Responses

Where are the daily puzzles gone?

By djape | Published: January 14, 2014
Dear all, First I must apologize for keeping you in the dark regarding what’s going on with the daily puzzles. The truth is that I’ve been working hard on my PhD thesis and just had no time to update the daily and weekly puzzles pages. Now… the daily Killer Sudoku, the daily Sudoku variants and the bi-weekly Samurai Sudoku pages will undergo some changes in 2014. For a while I will not post daily puzzles there. Instead, many puzzles will be posted here, on the main page of the site. We will see how it goes. If, say, in 3 or 6 months I see that this is not working for you and me, I will go back to how it’s been until now. There is no fixed schedule on which puzzles will be posted and how often. I can promise that it will be at least 2 times a week, focusing on Killer Sudoku and variants thereof, Samurai Sudoku and variants thereof and Jigsaw Sudoku and variants thereof. Still, many new and different kinds of all sorts of puzzles will be posted, too. I’m sorry if this makes some of you unhappy. I am always listening to your feedback and depending on what I hear from you, I might or might not go back to 2 to 3 puzzles every day. Thanks for understanding! Cheers, Djape
Posted in General | Tagged , , , , , , , , , | 10 Responses
eXTReMe Tracker