Guide not written yet. We add one after we've played the game. For now, this is the developer's own description.
About Kobadoo Numbers
Strengthen your mind with Kobadoo Numbers, a captivating browser game. Challenge yourself to memorize increasingly difficult two-digit sequences and enhance your cognitive abilities in a fun way. Unlock the potential of your working memory as you improve your focus, attention, and mental agility while enjoying this addictive experience.
Description supplied by the developer via GamePix.