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.

Tag Archives: IQ

Futoshiki

The rules of Futoshiki are very simple: 1. The grid is square and can be of any size. Use numbers 1 to the size of the grid to solve the puzzle. 2. Numbers cannot be repeated in a row or column. All numbers must appear in each row and in each column. 3. The “more […]
Futoshiki plus gifts

Posted in Free sample puzzles, General | Also tagged , , , , , , , , | 1 Response

Killer Sudoku 10×10

When was the last time I posted a Killer Sudoku variant puzzle for the first time? I can’t remember. Well, nearly 8 years (I’m a bit slow, you know) after publishing first Killer Sudoku, it occurred to me that there is no reason not to add the 0 into play. So… ladies and gentleman… a […]
Fiendish Killer Sudoku Book

Posted in Free sample puzzles, Killer Sudoku | Also tagged , , , , , | 14 Responses

Odd Even Sudoku

Merry Christmas to all who celebrate this day! 🙂 As a small gift for you, I’ve prepared an odd-even sudoku variation puzzle. It’s not the first odd even puzzle I ever posted, but it is the first plain odd even sudoku. And to spice things up a little bit, this is a very difficult odd/even […]
Loco Sudoku Puzzle Book Cuckoo Wacky Quirky

Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , , , , , | 4 Responses

How to solve Diagonal Sudoku X

I realize that I’ve never posted two sudoku solving techniques which are specific to Diagonal Sudoku puzzles. Here they are. Diagonal and nonet interaction This one is a simple extension of the “row/column and nonet interaction technique”. Just look at this sample puzzle which has been solved using the standard techniques up to this point: […]
Posted in Solving tips, Sudoku Variants | Also tagged , , , , , , , , | Leave a comment

Diagonal Sudoku

Can you imagine that I never posted a plain Diagonal Sudoku X puzzle here on the main page? I’ve posted a few Diagonal Samurai Sudoku puzzles and of course I often post Sudoku X puzzles on the Sudoku Variants page. Well, that’s about to change. 🙂 Here is a Sodoku X puzzle which is not […]
Diagonal Sudoku book

Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , , , , | 5 Responses

Flower Jigsaw Sudoku

It’s been a while since I last posted a Weekend Special puzzle. This time it’s a Flower Sudoku in Jigsaw Sudoku format. Or Jigsaw Sudoku in Flower Sudoku format? I don’t know. There was one Jigsaw Flower Sudoku variant posted a couple of years ago. The puzzle for today is rated COOL. Make sure to […]
Jigsaw Samurai Sudoku book

Posted in Free sample puzzles, Jigsaw Sudoku, Sudoku Variants | Also tagged , , , , , , | 2 Responses

Twodoku

Here we go… another “classic” Sudoku that I can’t remember posting before. Twodoku is a Gattai-2 puzzle, which means that there are two overlapping Sudokus. It’s a tough one, I think. In order to solve it, you should use all classic Sudoku solving techniques, but it would help if you also knew how to apply […]
Sudoku Variants Puzzles Book

Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , , , , , | Leave a comment

Butterfly Sudoku

I realized that I never posted a classic Butterfly Sudoku puzzle on the main page of the website. A few of them have been posted on the Daily Sudoku Variants page, but the puzzles posted there disappear from this website after a week. So… to rectify this issue, I am presenting you with a Butterfly […]
Loco Sudoku Puzzle Book Cuckoo Wacky Quirky

Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , , , , , , , , , , , , | 2 Responses

Why do I make puzzles? A brief history of Djape.net

A short answer to that question would be: because I enjoy doing it! … but here is a long version, too. Back in the summer of 2005 I realized that it’s about time I had my own website. At that point I had been computer programming for years and it kinda made sense that I […]
Posted in General, Killer Sudoku, Reviews, Samurai sudoku, Washington Post | Also tagged , , , , , , , , , , , , , , , , , , , , , , , , , | 6 Responses

A difficult TriDoku (Triangular Sudoku variant) puzzle

A new type of Sudoku variant puzzle in triangular format. It’s called TriDoku. This is a difficult one. There is an easier one posted before.
Loco Sudoku Puzzle Book Cuckoo Wacky Quirky

Posted in Free sample puzzles, Sudoku Variants | Also tagged , , , , , | 2 Responses
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