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World’s Toughest Sudoku

According to DailyMail in August 2010, linked here is the world’s toughest sudoku at the time.

It was created by Dr. Arto Inkala, an environmental scientist with a doctorate in applied mathematics. It was generated by a computer program that he devised. The puzzle has only one solution and can take someone 3 days to solve by logic.

The article says …

“So its difficulty – and frustration factor – lies in the number of mental leaps needed to complete each square.

Like chess, those trying to solve it will have to think several moves ahead. Many exasperating deadends have also been built in.”

The solution is linked here.

You can play sudoku online here.

National Geographic Memory Game

Try out the National Geographic’s Memory Game on their website. It tests your short-term memory by having you memory the location of 9 images in a grid.

Mah-Jongg Solitaire Game

Play the game at mah-jongg.ch.

This game was programmed by Thomas Weibel using DHTML and Javascript. The object of the game is to remove tiles that are “open” on the left and the right. Don’t worry, if you can’t see any open tiles, there is a “hint” button that may reveal moves that you did not see. There is also a “zoom” button if you find the tiles to be too small and is straining your eyes. Note that not all games can be won. However, good players can sometimes win one out of every three games.

Bricks Deluxe Game

Play game at King.com »

Bricks is a fast pace game with a bit of strategy. You need to click the bricks and change their colors to get three or more in a row before the timer runs out.

Tomb Chess

Play game at FreeWorldGroup.com »

Tomb Chess is a chess-like strategy game where you can play against the computer or another human. It has rules that are simpler than chess.

Angular Momentum — a hand-eye cordination game

Play at JayIsGames.com »

Who knew that rolling a disk around can be so much fan. The physics is amazingly realistic.

Puzzle Game: Phantom Mansion Blue Ballroom

Phantom Mansion is a game containing puzzle room where you have to navigate Hector to collect souls and make it to the exits. There are many sequels of this game. Here is one that is called the Blue Ballroom

Play at Gimme5Games.com »

Iso Ball 3 Game

Play here at Gimme5Games.com »

Get the marble into the hole by building ramps and blocks.

Sola Rola Gravity Maze Game

Play on Gimme5games.com »

An unique strategy game where you try to open gates to get the two characters through the maze to each of their destination.

Classic Reversi Game

Play the game at mah-jongg.ch/reversi/

This is the classic game of Othello where you play against a computer opponent. Consisting of black and white stones, you place your color stone on the board causing the opponents color stone to flip to your color. Whoever has the most colored stones at the end wins. What is interesting about this game is that it has unlimited undos.