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 Develop mathematical thinking playing SQR!

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