A Finnish mathematician on Monday claimed he had created the world’s hardest Sudoku puzzle, a brain-teaser that required three months’ work and a billion combinations to produce.

“AI Escargot is the most difficult Sudoku puzzle known so far,” the puzzle’s 37-year-old creator and applied mathematician Arto Inkala said.

“I called the puzzle AI Escargot, because it looks like a snail. Solving it is like an intellectual culinary pleasure. AI are my initials,” Inkala added. According to a rating published on a Sudoku website, AI Escargot claims the top spot for Sudoku’s most baffling puzzles.

Escargot demands those [Read More...]

Last week I received an e-mail about a Sudoku look-a-like, called Trigon Puzzles.

Trigon is a set of triangular domino’s is put together in various shapes and sizes. There is a number on each side of the triangle and a central number which is the sum of the side numbers. Where two sides meet, the number is the same.

To save writing the number twice a gap is left in the sides. The problem is that you are only presented with the central number and you have to use logic to determine the side numbers. [Read More...]

In Vancouver (Canada) Joe Defries will try to solve puzzles on a game board that’s 450 feet long and three feet wide (150 meter x 1 meter). He’s going for the Sudoku record for the Guiness people. There is no official record holder for this one yet.

He will work at the puzzle for a minimum of 24 hours this Sunday the 5th of September, raising money for B.C. Children’s Hospital at the same time. Joe Defries is already in the Guiness Book of World Records for solo hand-bells. He rang them for 28 hours and [Read More...]

Sushi Sudoku is just another variant of the world famous Sudoku puzzle.

There are four different levels and you can select numbers (original), characters or Sushi to play with. The rules just stay the same and the graphics are just perfect. Check our “how to solve Sudoku puzzle” page if you want to know how to solve Sudoku puzzles.

Tags: Sudoku | Sushi | Puzzle Game

At Station Software you can download a free trail version of Sudoku Station. Sudoku Station allows you to play the popular puzzle game Sudoku with an integrated help system. This integrated help system walks you through any Sudoku ,puzzle, giving you progressively more advanced hints as you complete the game.

Use Sudoku Station to play the included games or easily add your own from other sources. Sudoku Station will analyze each game, and help you solve the game by suggesting hints as you play. If you unlock the secret “Rainbow Sudoku” game and play with colors instead [Read More...]

In May this year I already wrote an article about the Sin and Vengeance Contest. Until now the Sin and Vengeance puzzle has not been solved.

Many newspaper readers enjoy the challenge of the daily crossword or crypto-quote. Recently, this interest has ballooned into a national obsession with Sudoku, jumbles and other puzzles.

It may be the pervasiveness of computers that spurred more of us to crave an analytical challenge, but puzzles are making appearances in other media. The Rule of Four, by Ian Caldwell and Dustin Thomason spotlighted an ancient text riddled with codes [Read More...]

Eidos Interactive, one of the world’s leading publishers and developers of entertainment software, is pleased to announce ZENDOKU, a new puzzle game for PSP (PlayStation Portable) system and Nintendo DS platforms.

Developed by Zoonami Ltd, ZENDOKU blends exciting puzzle battle action with addictive Sudoku gameplay. Set against a whimsical Far Eastern backdrop with a light-hearted martial arts theme, ZENDOKU offers a variety of colorful characters and a comprehensive range of single-player and wireless multi-player game modes.

Players choose a character and use the unique controls of the handheld console to attack or defend against a challenger, or [Read More...]