Sudoku Mathrax - 200 Hard to Master Puzzles 8x8 (Volume 4)

By Dart Veider

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.

• Format: Paperback
• Language: English
• ISBN: 154460548X
• ISBN13: 9781544605487
• Release Date: March 2017
• Publisher: Createspace Independent Publishing Platform
• Length: 138 Pages
• Weight: 0.43 lbs.
• Dimensions: 0.3" x 6.0" x 9.0"