Last week I also received an email from Dirk to inform me about a daily logic puzzle game called Nummix.
Update: No more daily Nummix from gamevertising.com, but you can still read how it works at Puzzelland.com
This logic puzzle game is a digital safe where you have to crack the code. Based on equation you have to try to crack a six digit code. You can ask for hints one by one. Daily there will be a new Nummix puzzle to crack. Happy Puzzling!