Download or read book Numbrix - 250 Medium to Hard Puzzles 7x7 written by Serhii Kucher and published by Createspace Independent Publishing Platform. This book was released on 2016-07-20 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numbrix is a type of logic puzzle. It is played on a rectangular grid of squares. Some of the cells have numbers in them. The object is to fill in the missing numbers, in sequential order, going horizontally and vertically only. Diagonal paths are not allowed.