- 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.
**** Mathrax features ****
- 6 different sizes of board
- 5 difficulty levels
If you have encountered any problem, please send an email to email@example.com