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: Classic Sudoku

Swordfish

By djape | Published: March 23, 2006
A while ago I explained the X-Wing solving technique. Recently I shown my explanation of other basic, Classic Sudoku solving techniques. The only remaining solving method that I don’t consider trial and error is Swordfish. So, to complete the list of Sudoku solving tips, here is an example of a Sudoku puzzle that can be […]
Posted in Solving tips | Also tagged , , , , , , , , | 34 Responses

Classic Sudoku Solving Techniques

By djape | Published: March 8, 2006
It’s about time I finally explained the basic (and most common) Sudoku solving techniques. Most of you are already familiar with these, but for those who aren’t – I’d like to show my explanation. These techniques are used in ALL sudoku puzzles – Classic, Killer, Samurai and others. Make sure you fully understand them before […]
Posted in Samurai sudoku, Solving tips | Also tagged , , , , , , , , , , , , | 10 Responses

Samurai Sudoku rules

By djape | Published: February 8, 2006
I’ve been asked a few times to post some Samurai sudoku solving tips. Well – there aren’t any special tips that apply exclusively to Samurai. Standard Sudoku rules apply, but to make things clear for newcomers, I’d like to give a brief set of instructions. Rules of Samurai Sudoku 1. Each Samurai Sudoku puzzle consists […]
Posted in Samurai sudoku, Solving tips | Also tagged , , , , , , , , , , , , , , , | 48 Responses

The Largest Sudoku Ever!

By djape | Published: February 6, 2006
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

Posted in Free sample puzzles, Samurai sudoku, Sudoku Variants | Also tagged , , , , , | 13 Responses

Le Matin Sudoku Fevrier (Switzerland)

By djape | Published: February 1, 2006
On February 1, 2006, “Le Matin” will publish a magazine with 50 Sudoku puzzles from Perfect Sudoku. There will be 30 classic Sudokus plus 20 Sudoku X puzzles. It is likely that there will be more magazines with our puzzles published in Switzerland. UPDATE: You can chat about this issue of “Le Matin” in the […]
Posted in Puzzle books | Also tagged , , , , | 2 Responses

Sudoku Harakiri

By djape | Published: January 11, 2006
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) […]
Samarai Sudoku book

Posted in Free sample puzzles, Samurai sudoku, Sudoku Variants | Also tagged , , , , , | 7 Responses

Double Trouble!

By djape | Published: November 24, 2005
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

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

More Swordfish

By djape | Published: November 22, 2005
I posted another classic Sudoku that requires Swordfish/X-Wing solving technique. You should practice this technique because at some stage I might post a Killer Sudoku that will require you to use this technique to solve the puzzle. Maybe. 🙂 Of course I also posted another Killer – it’s a Brain X. Have fun.
Posted in Killer Sudoku | Also tagged , , , , , , , | 2 Responses

Swordfish

By djape | Published: November 14, 2005
As promised, I implemented the Swordfish classic Sudoku solving technique in my Perfect Sudoku software and generated a few puzzles. I just posted one of them on the Daily Sudoku page. However, I ran my generator and generated a couple of thousands Killer Sudokus and NONE of them required Swordfish, just as I speculated before. […]
Posted in Killer Sudoku, Solving tips | Also tagged , , , , , , , , , , | 8 Responses

Sequential Sudoku

By djape | Published: November 8, 2005
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 | Also tagged , | 13 Responses
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