# Mathrax - Sudoku and Maths

> Puzzle

Canonical page: [https://chrome-stats.com/d/id645221113](https://chrome-stats.com/d/id645221113)

## Overview

- **ID:** `id645221113`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Stanley Lam
- **Category:** Puzzle
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.33
- **Last updated:** 2026-05-12
- **First published:** 2013-05-13
- **Size:** 12 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/mathrax-sudoku-and-maths/id645221113)
- **Website:** [http://brightskygames.com/](http://brightskygames.com/)
- **Privacy policy:** [http://brightskygames.com/privacy-policy/](http://brightskygames.com/privacy-policy/)

## Description

Mathrax is a logic puzzle. 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 appear 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.

**** Mathrax features ****

# Content
- 6 different sizes of board
- 5 difficulty levels
- more than 500 levels

# Features
- Highlight wrong number automatically
- Autosave the process of unfinished levels
- Record best completion time for each level

# Challenge
- Game Center Achievements
- Try to complete as many levels as possible

## Rankings

- #865,574 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id645221113)