Futoshiki

Futoshiki

or Unequal is a logic puzzle game from Japan. Its name means "not equal". It is also spelled hutosiki (using Kunrei-shiki romanization).

How to play

The puzzle is played on a square grid, such as 5 x 5. The objective is to place the numbers 1 to 5 (or whatever the dimensions are) such that each row, and column contains each of the digits 1 to 5. Some digits may be given at the start. In addition, inequality constraints are also initially specifed between some of the squares, such that one must be higher or lower than its neighbour. These constraints must be honoured as the grid is filled out.

Futoshiki in the United Kingdom

The puzzle is published every Saturday in The Guardian. However, the series did not get off to a good launch because the second-published puzzle had multiple solutions, and the third week's puzzle was identical to the second.Fact|date=August 2007 There are currently no daily publications of Futoshiki puzzles.

External links

* [http://www.guardian.co.uk/japan/story/0,,1884417,00.html Guardian article on the launch of Futoshiki]


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