The Big Book Of Logic Puzzles - Mathrax 400 Hard (Volume 57)

Mathrax consists of a square grid. The goal is to fill in each cell with numbers from 1 to N, where N is the size of the puzzle's side. No number may appear twice in any row or column. Circles with additional conditions may be situated on intersections of lines inside the grid. A number and a sign of mathematical operation (addition, subtraction, multiplication, division) - a number is a result of an operation execution with numbers in diagonally adjacent cells. A letter "E" ("even") - all numbers in four cells are even. A letter "O" ("odd") - all numbers in four cells are odd.

Author: Mykola Krylov

Publisher: CreateSpace Independent Publishing Platform

Publication Date: Apr 26, 2017

Number of Pages: 270 pages

Language: English

Binding: Paperback

ISBN-10: 1546316035

ISBN-13: 9781546316039