Play all four phases across three sites
Profiling, Categorising, Prospecting and Treatment, across three sites in 30 minutes, with unlimited attempts under realistic conditions.

Practise the Sea Wolf game as it appears in the real assessment: the same four phases, three sites and 30-minute clock, so nothing on test day is new to you.
4.8·16 reviews·From £69
The four phases, how scoring works, strategy, and preparation: everything you need before test day.
Read the McKinsey Sea Wolf guideA two-minute walkthrough: watch how decisions, constraints and the clock interact across a full run.
The same interface, phases and time limit as the real game, so you practise the assessment itself rather than a lookalike.
Profiling, Categorising, Prospecting and Treatment, across three sites in 30 minutes, with unlimited attempts under realistic conditions.

Practice mode removes the clock so you can learn the mechanics. Assessment mode puts it back and mirrors test-day pressure.

The built-in solver for Phase 3 and Phase 4 shows the optimal choices, so you learn the constraint logic instead of guessing.

Feedback after every run shows which constraints you broke and what each one cost. Every violated constraint takes 20% off that site’s score.

Analytics show your performance trend over multiple runs, so you can see when you are ready.

In-depth guides and strategy for the Sea Wolf game and the wider McKinsey Solve assessment.
How the microbe treatment scenario works, its four phases, and how each site is scored.
Read article →How to pinpoint the final treatment quickly, with the arithmetic shortcuts that save time.
Read article →Browse every post on Sea Wolf strategy, solvers and preparation.
View all posts →Select the package that fits your preparation needs. Every package includes 2 weeks of access, except McKinsey + Bain Ultimate, which runs for 2 months.
You only get one attempt at the McKinsey Solve Games. This costs less than a single interview coaching session, and prepares you for the actual filter.
Every McKinsey Solve game and the full Bain Assessment, for two months.
One-time · 2-month access
Backed by our 75% performance guarantee and 50% Redrock format guarantee.
Every Solve game, the Sea Wolf Solver, and both guarantees.
One-time · 2-week access
5.0 out of 5 from 555 reviews
Backed by our 100% performance guarantee and 50% Redrock format guarantee.
A focused three-hour plan for when your assessment is close.
One-time · 2-week access
4.9 out of 5 from 59 reviews
Bain's three timed aptitude tests, with a fresh question set every run.
One-time · 2-week access
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Practise the same phases, sites and time limit as the real assessment, so you spend the test making decisions, not learning the game.