SQR is a colourful mathematical puzzle. The player's point is to make each line's digit sum equal to appropriate column's sum using addition(+) and substraction(-) operation only.
- 6 levels of complexity (up to 7x7)
- a fascinating intellectual process to train your brains!
- 18 levels tutorial
- unlimited levels to play
- trading cards
- minimal price
- Steam achievements
- pleasant music