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.

Category Archives: Sudoku Variants

Sudoku Variants, such as TriDoku, Outside Sudoku, Non-Consecutive Sudoku, Greater/Less Than, Sudoku Straights etc

The Largest Sudoku Ever!

A while ago, one of our visitors – Mike – posted a message asking for this: I’m really looking forward to our special xmas day insane banzai samurai bushido Honda pachinko sushi killer. Well, I never posted such a puzzle, but this one that I’m posting right now could go under that name. It’s a […]
The Largest Sudoku book in the world, 2500 puzzles

Also posted in Free sample puzzles, Samurai sudoku | Tagged , , , , , , | 13 Responses

Butterfly Sudoku Killer X

Here is this weekend’s special – a unique and never-seen-before Killer Butterfly X There are 4 “classic” 9×9 Sudoku puzzles inside this one. They all overlap and they all must be solved according to the rules of Sudoku and Killer Sudoku. You can use Twin Nonets solving technique for this one! However, in contrast with […]
Fiendish Killer Sudoku Book

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Harakiri Sudoku X

Yet another – first ever – puzzle from Perfect Sudoku – Sudoku Harakiri X! Basically, it’s a double Samurai Sudoku puzzle: 8 classic sub-puzzles, which of course don’t have their own (unique) solutions but all together constitute a puzzle with a single solution. This time, however, you must also pay attention to diagonals: ALL diagonals […]
Super Sudoku Quad Samurai Puzzle Book with Variants

Also posted in Free sample puzzles, Samurai sudoku | Tagged , , , , , , | 4 Responses

Killer Butterfly

I don’t know if there is a species that go under that name and if there are, my apologies to them. Another world premiere Sudoku variation puzzle – Butterfly Killer Sudoku. Thanks to one of our regular visitors udosuk for suggesting this concept – this should encourage you to suggest a layout for overlapping puzzles […]
Killer Sudoku Samurai: 65 puzzles (Volume 1)

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Sudoku Harakiri

Here is my first ever Sudoku Harakiri puzzle. Frankly, I don’t enjoy solving these puzzles, but I think that there might be some interest in these. So I created a few and picked one for you. Basically, it’s a double Samurai Sudoku puzzle: 8 classic sudoku sub-puzzles, which of course don’t have their own (unique) […]
Super Sudoku Quad Samurai Puzzle Book with Variants

Also posted in Free sample puzzles, Samurai sudoku | Tagged , , , , , , | 7 Responses

Triple X

Another overlapping sudoku variant – now with 3 Sudoku X puzzles. Warning: This puzzle is quite difficult even that it can be solved using only basic sudoku solving techniques. You must work on all three puzzles in order to get the solution. Also, I think you might get confused about the “fourth” puzzle which you […]
Diagonal Sudoku X

Also posted in Free sample puzzles | Tagged , , , , , , , , , | 15 Responses

Double Trouble!

I have just completed a new enhanced version of my puzzle generator. We can now create any kind of overlapping Sudoku puzzles (Samurai-like) – that is, with any number or arrangement of 9×9 classic Sudoku inside. Here I’m posting my first such puzzle – I’m calling it Double Trouble (the puzzle formerly known as “doubled-doku”). […]
Flower  Sudoku and Outside  Sudoku

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Sequential Sudoku

Here is another very special Sudoku puzzle. In fact, it’s not only one puzzle but rather six of them, although you cannot solve them separately. Instead, you must solve them in the given sequence, because in order to solve a puzzle, you must copy a few numbers from the previous one. So, the first puzzle […]
Posted in Sudoku Variants | Tagged , , | 13 Responses

More daily puzzles

In addition to today’s 3×3 Killer Sudoku that you are already used to seeing here, I’ve posted another puzzle on the Daily Sudoku variants Puzzles page. It’s a standard Sudoku, although not a classic 3×3 but rather a 2×5 variation. All 10 digits are used (0-9) so it should be slightly more difficult than the […]
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