The Hidden Logic of Sudoku, a book by Denis Berthier, provides stimulating new insights into the popular game. It proposes new graphical representations and new resolution rules. Additionally, it sets new standards of rigor in the approach to Sudoku.

The “Hidden Logic of Sudoku” provides the first systematic perspective of the logical symmetries of the popular game. These are fully exploited to define new graphical representations, new kinds of resolution rules and a precedence ordering of the rules consistent with their logical complexity.

The set of rules defined in the book is illustrated with [Read More...]

Category: All Puzzles, Puzzle Books, Sudoku Puzzles

Rubik’s Cube is on sale again in Russia. Since the first of June 2007, Rubiks.RU is selling officially Rubik’s Cube in Russia online.

The company based in Moscow, Russia focusing on puzzles and developmental toys category. Currently they exclusively represent the Rubik’s brand in Russia and import and distribute, among other puzzles, 100% original best-sellers of all times – Rubik’s Cube and Rubik’s Twist.

They are also working on bringing the newest Rubik’s Revolution to Russia. Happy Puzzling!

Tags: Rubik’s Cube | Russia

Category: All Puzzles, Rubik's Cube

The Obelisk Chairs are one big puzzle, four armchairs and one table fits together like a puzzle and looks like an Obelisk.

The Obelisk consists of four powdered coated aluminum frame chairs with white cushion and a table stacked into one piece made out of woven polyethylene and can be used as well inside as outside. It’s very durable on the exterior and interior, so it’s built to last.

Downside is that this will cost you around US$ 9,000. More information about the Dedon Obelisk is available from Dedon.co.uk

Tags: Armchair

Category: All Puzzles

Submachine: Future Loop Foundation (FLF) is a nice Flash walk through adventure puzzle game also known as point and ‘click games’.

Submachine FLF features music from a band of the same name (Future Loop Foundation) and it sets the mood very nicely for another enjoyable adventure. The game features the same crisp original hand drawn graphics we have come to love from the series, as well as more engaging puzzles to challenge your mind with.

In words from the author himself: “Expect the unexpected. Fifty days after releasing Submachine 4: the Lab here is a [Read More...]

Category: All Puzzles, iPhone/iPad Puzzle Games

Kirby is a nice simple but lovely flash puzzle adventure game you will like for sure.

Just use your mouse to drag arrows on the board and show Kirby the way! The puzzles are easy at first, but become hard in the latter levels. Kirby feature over 30 uniques puzzles.

You will probably need at least one hour to complete all puzzles of Kirby. Happy Puzzling!

Tags: Puzzle | Adventure

Category: All Puzzles

The new 2012 Olympics logo for the games in London, was unveiled today.

In my opinion it looks a bit dated like you probably remember from the eighties. Next to that it looks like some weird shaped puzzle pieces which can resemble “2012″ but also something else if you ask me.

Tonight I will puzzle a bit and try to find something else this logo resembles. Probably I will not be the only one who is puzzled seeing this logo for the first time and definitely not the last one who will try to make something [Read More...]

Category: All Puzzles

If regular Rubik’s Cubes just aren’t tough enough for you, try the Rubik’s Cube Earth.

Rubik’s Cube Earth costs about US$ 20, and should be significantly harder than regular Rubik’s Cubes because it lacks the distinguishing colors.

Plus, you also have to know what the Earth actually looks like [via Geekologie]. Happy Puzzling!

Tags: Rubik’s Cube

Category: All Puzzles, Rubik's Cube