Download or read book The Giant Book of Logic Puzzles - Numbricks 600 Hard Puzzles (Volume 4) written by Mykola Krylov and published by Createspace Independent Publishing Platform. This book was released on 2018-09-23 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numbricks - kind of logic puzzle. It is a rectangular grid in which some cells are numbers. Required to fill the empty cells so that all the numbers have been connected in series horizontally or vertically. Moving diagonally is not allowed.