Futoshiki Puzzle Books - 400 Easy to Master Puzzles 9x9 (Volume 5) (Paperback) (ISBN-13: 9781703769487)

Futoshiki (from Japanese, literally "not equal"; also known as "Hutoshiki", "Unequal") is a logic puzzle.

The puzzle is played on a square grid, such as 9 x 9. The objective is to place the numbers 1 to 9 (or whatever the dimensions are) such that each row, and column contains each of the digits 1 to 9.

Some digits may be given at the start. In addition, inequality constraints are also initially specified 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.

Author: Dart Veider, Dmytro Khomiak
ISBN-10: 1703769481
ISBN-13: 9781703769487
Publisher: Independently Published
Language: English
Published: 10/30/2019
Pages: 240
Format: Paperback
Weight: 0.72lbs
Size: 9.02h x 5.98w x 0.51d