How do I calculate Zufall on my own?

By Tim on

Simple math. Assign a value to the number 1 on your blue die. It might be something like 1
block or 10 minutes walking. Then roll the dice. Multiply what you rolled on your blue dice
by your predetermined value. So if your value was 1 block, and you rolled a 4, you would go
4 blocks. If your value was 10 minutes walking, you’d walk 40 minutes.