How it works

Read a real business case. It stops where the decision was actually taken. You make the call, say why, and get your reasoning scored against the case.

Free · about 15 minutes a case · everything saves itself

  1. 01

    Read until it stops

    Every case pauses at the moment a real decision was taken — before you can see how it turned out.

  2. 02

    Make the call

    Some decisions you play on a board. The rest you argue in writing — 20 words is enough to be rated.

  3. 03

    Get it read back

    A minute or two later: a score out of 100, what held up, what you missed. Keep reading — it finds you when it lands.

The case

the story so far…

On the boardplay it

…what actually happened

Your turnwrite it
Feedback0–100

…and on to the next decision

The case is the lesson

It isn’t an article with a quiz bolted on the end. Each question sits at the exact point in the story where that decision was taken, so you answer it before you read what happened.

That order is the whole point: once you know the ending, you can’t un-know it. Cases with a decision board let you play the calls out and see where the company lands. The rest you argue in your own words.

How your answer is scored

A reviewer reads the whole case, your answer, and your run on the board if you played it. It scores five things out of 20 each. Added up, that’s your rating out of 100.

  • Framingnamed the real decision0–20
  • Evidenceused the facts in the case0–20
  • Alternativesweighed the other options0–20
  • Uncertaintypriced what you can’t know0–20
  • Commitmentactually chose, and said why0–20
strong · 85+solid · 70+thin · 45+off target · under 45

Being right isn’t the test

Matching what the company did earns nothing on its own. A well-argued disagreement can score higher than a lucky guess.

Nothing is locked

Every answer stays editable forever. Change it and ask to be rated again — a low score blocks nothing.

Cases count equally

A case scores the average of your answers in it. Your overall rating averages cases, so a long case can’t outweigh a short one.

Start with one case.

Pick a company you already have an opinion about — those are the ones worth testing. Everything you write is saved, and finished cases build a credential you can share.