DJ Ape .Net - The Home of Perfect Sudoku » Sample puzzles

Saturday Special: Anti-King Anti-Knight Killer Sudoku

h3lix — Sat, 26 Jun 2010 16:58:07 +0000

Anti-Chess Killer Sudoku contains a few hybrids, which combine multiple anti-chess variants. Here is a sample that is both Anti-King and Anti-Knight, meaning no two cells one king’s move OR one knight’s move away from each other can have the same value.

MEDIUM Version
INSANE Version

The answer to both versions is the same and is here

A difficult TriDoku (Triangular Sudoku variant) puzzle

djape — Mon, 14 Jun 2010 21:39:37 +0000

After a couple of Killer TriDokus and a TriDoku X, I’d like to show you a classic TriDoku puzzle but somewhat more difficult (or so I think).

For those who are still unfamiliar with this type of triangular Sudoku variation puzzle, please refer to the introductory article.

Other TriDoku puzzles can be found in this category.

And finally, here is the puzzle.

TriDoku for Monday, June 14, 2010. Difficulty: IQ

The solution is here

Comments? Questions? Please!

Saturday Special: Anti-King Killer Sudoku

h3lix — Sat, 15 May 2010 20:28:22 +0000

Here’s another Anti-Chess sample puzzle: this one’s a bit harder than the last one.

This one’s a HARD (4/5…BRAIN/IQ) Anti-King Killer
(this puzzle was originally classified insane, but is actually easier than the insane puzzles in the book)

Anti-King means that no two cells one king’s move move away from each other in chess can have the same value. In other words, in addition to the rules of regular sudoku, no diagonally adjacent cells can have the same value.

I have posted a visual walkthrough and solution for this puzzle on the forums here

the solution is here

Overlapping CalcuDoku (Square Wisdom, MathDoku) puzzle

djape — Wed, 12 May 2010 20:35:45 +0000

It’s been quite a while since I last posted a CalcuDoku puzzle. I’m going to fix that now and to make it up to you, it will be a somewhat special variant of Square Wisdom puzzles.

It’s an overlapping, 2 in 1 (Gattai-2), CalcuDoku puzzle, which is essentially in a TwoDoku layout.

Remember the rules: there are no 3×3 nonets (nor any other kind of nonets). You only need to make sure that each row and each column contain one occurrence of each digit. And finally, unlike Killer Sudoku puzzles, in CalcuDoku puzzles numbers can be repeated in each cage!

Of course, if you need assistance with cage combinations, you can use the CalcuDoku calculator.

2 in 1 overlapping CalcuDoku for Wednesday, May 12, 2010 – Difficulty: IQ

The solution is here

Triangular Killer Sudoku variant – Killer Tridoku #2

djape — Tue, 20 Apr 2010 07:34:55 +0000

Remember the TriDoku puzzles? Here is a new one. It’s a second one in Killer format, give it a try!

Killer TriDoku puzzles: all standard rules of Killer Sudoku apply + of course the TriDoku rules.

TriDoku Killer Sudoku for Monday, February 22, 2010. Difficulty: THINKER

(when you click&download the puzzle it won’t look so blury, I promise!!!)

The solution is here

A new Hidoku puzzle

djape — Mon, 12 Apr 2010 07:25:45 +0000

Since I stopped with the

Daily Hidoku

puzzles, I never really posted one puzzle of this species for you. Sorry about that, here it is now!

By the way, the two Hidoku books I published should be solved in reverse order. Why? Because the puzzles in Volume 1 are slightly more difficult than the puzzles in Volume 2!

The rules of Hidoku can be found here.

10×10 Hidoku for Monday, April 12, 2010.

The solution is here

Prices on some of my books – SLASHED!

djape — Sat, 13 Mar 2010 10:08:03 +0000

Some of my books are being heavily discounted at the moment. Before I introduce them to you once more, let me kindly ask you again to review my books on Amazon if you buy them. If you have already bought them, you can still do that. It means A LOT to me!

My first Kakuro book: This book is undeservedly neglected. I know my Kakuros are of top quality. Some of you know that too. Those that don’t know that yet should look at the Kakuro category and try some of my puzzles there. Further, this book is the only book (as far as I know) that contains Kakuro variants: odd/even, (non)consecutive, greater/less than. And on top of that all, it is now priced only $6.95 on Amazon!!!
Djape does Sudoku: 300 puzzles for ADVANCED solvers: This is not a book with your ordinary puzzles that you can find in your local newspaper. This puzzles are rather difficult. On top of it, it contains 60 puzzles that require you to apply either the X-Wing or the Swordfish techniques. It is now priced only $7.95 on Amazon!
Sudoku Straights: Where Poker Meets Sudoku: A one of a kind book! Books with such puzzles have not been published elsewhere. Try some of them from the Sudoku Straights category. The book is dirt cheap: only $6.95!!! on Amazon!

From what I know, there will be no further reductions in prices. And the prices on these books might go back up! So now is the best time to get them.

Outside Sudoku Straights (difficult!)

djape — Fri, 12 Mar 2010 11:55:48 +0000

Here is a new variant of Outside Sudoku puzzles: Sudoku Straights.
The rules of Outside Sudoku are explained here.
The rules of Sudoku Straights are explained here.

Now, all you need to do is combine them and apply them both. It’s a rather difficult puzzle (or so I think).
What do you think?

Outside Sudoku Straights for Friday, March 12, 2010 – Difficulty: IQ.

The solution is here