As it is presented in the passage, the approach to history taken by mainstream U.S. historians of the late nineteenth...

Nishant-Varma on May 21, 2020

Scenarios

When do you know that you should create scenarios? For what type of questions is the scenario approach a good one?

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SamA on May 21, 2020

Hello @Nishant-Varma,

You want to focus on the rules that limit your game to a few distinct possibilities. For example, you might get a rule like this one on a linear game:

X is either 3rd or 4th.

This neatly divides my options into two, and I will make a diagram for each. One represents X in 3, and the other represents X in 4.

A "block" is another rule type that lends itself to making scenarios. For example, you might see something like: X is two spaces after Y.

X _ Y

You'll notice that this block takes up a lot of space. There may only be 3 or 4 places for it to go. If that is the case, I will create a scenario for each option.

My personal policy is this: If I can find a rule that gives me 4 or fewer distinct possibilities, I will diagram them all. I generally do not want to make 5 or 6 diagrams before starting the questions. 4 or fewer is about right.

Consider a rule like this one: X is before Y.

X - Y

Imagine there are 6 spaces in this linear game. There are a lot of options that will allow X to be before Y. This is not a rule that I will create scenarios for, because I don't have time to draw a million diagrams.

There are certain grouping games for which multiple scenarios can be helpful. For example, imagine that we are placing 6 letters into two groups, X and Y. All letters must be included.

ABCDEF

X:

Y:

Rule: A and B cannot be in the same group.

Because there are only two groups, this creates two distinct possibilities, and I will diagram both.

X: A
Y: B
or
X: B
Y: A

I will then consider my other rules and fill in these two diagrams accordingly. In short, you want to look for rules that create a few distinct options.