Samurai SuDoku, Killer Sudoku and more

This is my largest CalcuDoku puzzle so far. Previously I published a CalcuDoku Samurai 7×7, but this time the puzzle is even larger:

8×8 CalcuDoku Samurai for Saturday, February 28, 2009.

Click to download the puzzle in your favorite format:

ALL OPERATORS version:

REDUCED OPERATORS version:

You can use my CalcuDoku Calculator to help you out with the possible combinations for a cage.

These puzzles are also available to newspapers, magazines and other publishers. Be the first to have my CalcuDoku puzzles printed! Interested? Send me an e-mail

png solution – final

Questions, comments and suggestions are more than welcome!

I’ve published 3 more books through CreateSpace: two new volumes of old books and one book that is new for Amazon. Here is what they are:

The Way of Samurai: 105 Samurai Sudoku puzzles, volume 3

Square Wisdom: 200 KenDoku puzzles, volume 2

Picross, Hanjie, Griddlers, Nonograms: 130 puzzles (please read below!)

Although first two books don’t need too much introduction, here is a brief description:

The Way of Samurai 3:

80 classic, 20 diagonal and 5 surprise Samurai Sudokus! While all puzzles are new, one of the surprise Samurais is extra special: no such puzzle has ever been published before – it’s a Samurai Sudoku Straights puzzle.

Square Wisdom: 200 CalcuDoku puzzles, vol. 2:

Everything is exactly the same as in volume 1, except of course that the puzzles are all new.

and finally…

Picross, Hanjie, Griddlers, Nonograms: 130 puzzles

This book is completely new for Amazon. However, I must tell you that a few of the puzzles in this book have already been printed in my LuLu book “Hanjie: 60 puzzles”. For various reason it had to be that way, primarily because of the way these puzzles are created.

These books are also available for download as e-books from LuLu:

UPDATE: After some debate with udosuk (see comments), I’ve decided to adopt the rule that every cell must be either black or white, it can’t be left “undecided”. I’ve changed the original puzzle accordingly so you can download it now.

At the end of last year, I announced that I will be introducing more types of number-logic puzzles on this site.
First up – HITORI puzzles.

Goal:
Eliminate duplicate numbers from each row and column by shading them black.

Rules of Hitori:

1. Two black cells must not touch each other horizontally or vertically. Diagonally is Ok.
2. All white cells must constitute one continuous area. In other words, there must be a path between any two white cells, without crossing “the wall” of black cells. Think of it as a maze.

Hitori puzzles can be of any size, from a tiny 4×4 (or even 3×3) to any size you can imagine. Today I’m presenting you a rather large one, 15×15 in size.

You can read how to solve Hitori by following that link.

Hitori 15×15 for February 7, 2009.
Click to download the puzzle in your favorite format:

png solution – final