CrossNum Levels app for iPhone and iPad

4.8 ( 7848 ratings )

Games Puzzle Entertainment Educational
Developer: Robert Bradlaw

Free

Current version: 2.0.4, last update: 8 years ago
First release : 11 Jan 2015
App size: 13.59 Mb

This puzzle involves sums of integers from one to nine. On a 4 x 4 grid where sixteen numbers fit, four are given, along with the row, column, and diagonal sums. The object of the puzzle is to discover the missing twelve numbers that satisfy the sums.

Earn points by solving the puzzles. Graduate to higher game levels and earn free hints and more points for a solution. Can you make it to the 10th level?

Compete against an optional timer and earn bonus points if you’re fast enough.