100 Futoshiki Puzzles

100 different Futoshiki puzzles in different degrees of difficulty and sizes from 4x4 to 9x9. The puzzles may be freely distributed or used for publication. Futoshiki is another Japanese logic puzzle which is normally played on a 5x5 grid. Translated, it means "not equal". The objective is to place the numbers 1 to 5 in each row and each column. Some numbers are given at the start and in addition, there are constraints specified between some squares. The Puzzles are in Adobe PDF file format and have not to be installed. You can easily print and then work them out with pencil and paper.