RuleStack is a daily logic puzzle built around deduction and ordering. There is one puzzle each day. You must arrange blocks so that all provided rules are satisfied. There is only one correct solution. - Quick enough to complete in < 2 minutes. - No account required to play - One shared challenge for all players - Streak tracking Today is RuleStack #1 - the very first puzzle. I'd love feedback from puzzle fans, makers, and anyone who enjoys daily brain teasers.