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.

The puzzle book contain:
• 200 Puzzles
• Handy 6 x 9 inch Book Layout
• 2 Puzzles per Page
• Ideal for Beginners

In the book you will find a description and examples of solutions for all puzzles.
The book is for those who like logic and math problems. Decide, developing and improving.

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Edward Bowditch Ltd
Exstowe, Exton, Exeter, EX3 0PP, United Kingdom

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Legal entity name: Edward Bowditch Ltd
Legal entity form: Limited company
Business correspondence address: Exstowe, Exton, Exeter, EX3 0PP
Company registration number: 04916632
VAT registration: GB834241546
Authorised representative: Mr. E. Bowditch