McKinsey Solve · practice simulation
Sustainable Futures Lab
You join a five-person team on a five-year mission to bring a polluted, flood-prone river back to health, and make 13 decisions as the situation changes around you.
- Time
- 20 min
- Decisions
- 13
- Maths
- None
The clock stays paused while you read the welcome and the brief.

What it tests
Judgement: reading a brief, putting actions in order against it, and choosing how to respond to teammates, farmers, residents and a water company when the options pull in different directions.
How it runs
- 1
5 priority rankings
Put four actions in order of priority against the brief. Drag them, or move them with the arrows. - 2
8 courses of action
Read what has changed, then choose one of two or three responses, each with the words you would use. - 3
4 team briefings
New facts between decisions. Later decisions depend on them, and the brief stays one click away.
How it is scored
Each decision is worth 4 points. A ranking loses one point for every two places its actions sit from the stronger order. A course of action earns full credit for the strongest response and half for a defensible one. You finish with an overall score, a profile across four competencies and a review of every decision.
PartnerRound