Company assessment practice.
McKinsey Solve and Bain assessments. Learn the format. Try it free.
Got your McKinsey Solve invite?
Start with Red Rock: the free 8-minute sample in the first row needs no sign-up. Sea Wolf is the row after it.
Solve Pass €69 once: as many sittings as you need of Red Rock, Sea Wolf, the 20-minute Lab and the full mock, no expiry.
What the Pass includesMcKinsey Solve practice
Red Rock
Find evidence. Calculate. Build your report.
Full practice35 minTry free8-minute sample
Sea Wolf
Build a treatment from three microbes.
Full practice30 minTry free1 site · 10 minutes
Sustainable Future Lab
Make decisions as the evidence changes.
Full practice20 min
Full Solve Mock
Rehearse the complete sitting.
Full practice65, 85 or 95 minExplore mockFirst full run free
Independent practice scenarios. Formats can vary by office and assessment cycle.
McKinsey Solve practice, explained.
Choose a task, learn its controls, then try the timed sample. These are original CaseStar practice scenarios with review—not the official assessment.
Where can I practise McKinsey Solve for free?
On CaseStar, start with an 8-minute Red Rock study sample or a 10-minute Sea Wolf site. Sustainable Future Lab also has an approximately 6-minute sample. Read each brief and try the untimed tutorial before starting a clock.
What is the difference between Red Rock, Sea Wolf and Sustainable Future Lab?
Red Rock practice focuses on evidence, calculations and reporting. Sea Wolf practice focuses on selecting microbes that meet site requirements. Sustainable Future Lab practice focuses on priorities and branching decisions; its format is candidate-reported, not named on McKinsey’s public Solve page.
Are these the real McKinsey Solve games?
No. CaseStar provides independent practice scenarios, not McKinsey software, leaked questions or an official assessment. McKinsey describes Solve as a problem-solving assessment. Your invitation is the authority for your actual tasks, timing and permitted tools.
What is free, and when do I need paid access?
The introductory samples and tutorials are free. Full-run access is checked before a simulation starts. Eligible accounts may have a first full attempt available; Red Rock’s bounded sample ends at its access gate. See the pricing page for current Solve Pass and package options. New Solve Pass purchases: No expiry · yours to keep. Your Solve Pass stays active for as long as CaseStar offers the Solve simulators. Simulator access is separate from live-interview case credits.