Logic games. Game of 15

 

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Logic online game

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Mathematical puzzles - the Sam Lloyd's logical game 15. Online versions of Set and Mathematical and word card games. Features a daily puzzle and contest. Puzzles and Games: Mathematical Puzzles .

15 Puzzle - Sam Lloyd's logical game to play online. Play online Sam Lloyd's "15" puzzle. The funny story and mathematical implications of this game. Some funny logical problems with the 15 game. Everybody knows this logical game's purpose: the player has to order the tiles like this: 13 14 15
You can play online Sam Lloyd's "15" puzzle here. Sam Lloyd (1841-1911) launched a problem: can you solve the game, if initially the tiles are arranged like in the image below? 13 15 14.

This problem is known as "The 15-14 problem" and the author offered a thousand dollars to the one who will solve it. A lot of people tried to solve the puzzle, but nobody claimed yet the prize. You can find why Sam Lloyd didn't risk anything here, where we discuss the mathematics of this logical game. Good news!!! If at the beginning the tiles are disposed like in the second picture, and we want to arrange them in the same order like the first image, we can do this!!! The problem has solution!!! Click here to see it!

Sam Lloyd was the America's greatest puzzle creator. One of his games was the "fifteen game", named so because of the fifteen little numbered tiles. You can read here the funny story of this mind game. Everybody knows this logical game's purpose: the player has to order the tiles. Not as many people know that this brain game has interesting mathematical implications. Our version is flexible so you can choose the field's size. You can move the tiles by clicking them. If you use Internet Explorer you can use the arrow keys too to slide the tiles.