Iron Ruler provides that quick 20-60 minute strategy break you need while your food is cooking, or your code is compiling, or the paint is drying... Iron Ruler's unique ruleset uses the triangular number sequence.

Iron Ruler provides that quick 20-60 minute strategy break you need while your food is cooking, or your code is compiling, or the paint is drying... Iron Ruler's unique ruleset uses the triangular number sequence.