Exam-accurate practice for McKinsey, BCG and Bain assessments — timed simulations, solvers and interview rehearsal that mirror the real tests. Start with a free trial and see for yourself.
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Every MBB assessment rewards a structured, repeatable method. Our simulations mirror the real timed assessments and our solvers implement the exact selection logic you'd do by hand — instantly and reproducibly — so you arrive at the optimal answer every time.
A full timed, 3-site Sea Wolf assessment that mirrors the real McKinsey Solve experience — same phases, same pressure, same scoring. Nothing else comes closer to the genuine thing. Three difficulty levels — Easy, Medium and Hard — with over 100 unique scenarios, so an optimum selection of microbes is not always guaranteed, exactly as in the real assessment.
Work through profile, categorization, prospect building and final selection under the clock. When time's up, you get a full AI-powered score breakdown — microbe routing analysis, timing and pacing analytics, decision-making insights, and a per-site effectiveness breakdown — so you can see exactly how you'd have done and where to improve.
No installs. The simulation runs in your browser and is scored on our servers the moment you finish — log in, confirm your run, and practise the Sea Wolf game as many times as you've bought runs for.
No vague frameworks, no guesswork. Our simulations recreate the real timed assessments — same phases, same pressure, same in-game tools — with a full AI backend scoring every run. Train on the Sea Wolf and Redrock simulations, drill decision-making in the Sustainable Futures Lab, and the Sea Wolf Solver picks the optimal microbe trio for you.
A timed, like-for-like simulator of the real Sea Wolf assessment — same phases, same prompts, same pressure. Easy, Medium and Hard difficulties mean an optimum microbe selection isn't always guaranteed, just like the real thing. Full scoring and microbe-routing analytics at the finish.
The complete 35-minute Redrock assessment with Research Journal, calculator, drag-and-drop data, six scored Cases and a full performance breakdown — mirrors the genuine McKinsey Redrock experience end to end.
Six scenarios of varying complexity test prioritisation, stakeholder management and crisis decision-making under time pressure. Every attempt returns a personalised AI feedback report with full personality, strength, weakness and decision-making analysis.
Trait filters, prospect scoring and the optimal-three auto-pick reproduce the exact selection logic the game rewards — across all three contamination sites — instantly and reproducibly.
Every solver runs the same way you will run the real thing. Pick a tool and see the actual interface — captured straight from the live app.
Real reviews from buyers who used the solvers and simulators to prepare for their McKinsey, BCG and Bain assessments.
When I applied before my MBA I didn't get an invite to R1 or a callback, I think it was partially because I ended up running out of time. Keen not to lose the opportunity this year, I decided to try this and I'm quite glad I did. Thankfully I got the email inviting me to first round shortly after this, so THANK YOU!
The Sea Wolf solver saved me — I just didn't have enough time to prep for this as I was handling loads of applications at the same time. It would be worth the £10 on its own twenty times over but I ended up getting the bundle.
Honestly skeptical at first, I thought it would be some vague framework but it's not. Strangely and I don't know how you guys did it the questions were very, very similar from the simulations. The solver was quite easy to use and took me about 4 minutes to punch in the numbers and get the answers.
Bought the bundle the night before my assessment and ran through two of each of the simulations. Didn't expect much given how little I'd prepared for this particular assessment, I was mainly casing. I finished both games with time to spare though, normally I'm rushing on the last screen barely reading things! The hour I spent actually felt like it was enough preparation.
I'm experienced/switching careers so it's been ages since I've touched ANYTHING like this. I was a little nervous going into it, admittedly. This put my mind at rest and was worth every dollar. Massive thanks!
Used it purely for practice with the simulations since I didn't feel using the solvers was right for me. The simulations basically match exactly what the real game asks and look like, but with a different color scheme. I did make it through without the calculators but I'm pretty sure I would have ran out of time without the simulation prep.
Reviews reflect individual experiences. Names have been anonymised and may only be snippets of real reviews.
No subscriptions, no recurring billing, no unnecessary upsells. Pick a single tool, take a firm bundle, mix any combination at checkout — or unlock everything with the MBB bundle.
4.89 · 604 reviews
Full access to the Sea Wolf Solver — 3 runs.
Runs in your browser · results saved to your account
Run the full timed Sea Wolf simulation — 3 runs.
See the walkthrough above · £10 for 3 runs
Run the full timed Sustainable Futures Lab Simulator — 3 runs.
Runs in your browser · scored server-side with AI feedback
Run the full timed Redrock Island assessment — 3 runs.
Mirrors the real McKinsey Redrock assessment · £10 for 3 runs
New · the full BCG funnel
Run the full timed BCG Quantitative Reasoning test — 3 attempts.
Popular for BCG London experienced & MBA hires · £10 for 3 attempts
A realistic, procedurally-generated BCG Casey chatbot case — 3 attempts.
Tailored prep for the BCG Casey conversation assessment · £10 for 3 attempts
Practise the BCG one-way video interview — 3 attempts.
45-minute async budget · flexible prep like the real thing
Every Bain tool in one pass: the four SOVA tests plus the video interview
Timed SOVA-style numerical reasoning on real business data — 15 questions in 5 blocks.
Practise the real SOVA numerical section
Timed SOVA-style verbal reasoning — 5 business passages, 3 statements each, True / False / Cannot-say.
Sharpen your judgement calls under time
Timed SOVA-style logical reasoning — the full 15-matrix set across 1×4, 2×4 and 3×3 formats.
Practise the real SOVA matrix formats
The SOVA-style personality questionnaire — 41 forced-choice screens mapped to 8 consulting competencies.
Know your fit profile before test day
Practise the Bain one-way video interview — 3 attempts.
Real continuous format · practise like it's the real thing
Your purchases live on your account — log in to see your remaining runs and pick up where you left off.
Go to your dashboard →Prices in GBP. International buyers see their local currency automatically at Stripe checkout.
No. Ace the Solve is a service providing independent study aids for the McKinsey Solve ecosystem, BCG's online assessments and Bain's interview and SOVA process. It is not endorsed by or affiliated with McKinsey & Company, Boston Consulting Group, Bain & Company or any other commercial entity unless otherwise explicitly written.
Everything runs on your account. Log in, buy a product, and the purchase attaches to your account instantly — your remaining runs follow you to any device. Open a solver or simulation, confirm the entry prompt, and one run is consumed server-side — you can then re-run within that session as many times as you like. Every product gives you three runs or attempts per purchase: the five McKinsey tools (Ecosystem Solver, Sea Wolf Solver, Sea Wolf Simulation, Sustainable Futures Lab and Redrock Simulation), the three BCG tools (BCG Quant Simulation, BCG Casey Chatbot Assessment and BCG Video Interview), Bain's five tools (Bain SOVA Numerical, Bain SOVA Verbal, Bain SOVA Logical, Bain SOVA Personality and Bain Video Interview), plus the Case Ace AI case interviewer, included in the MBB bundle. The McKinsey bundle covers the five McKinsey tools, the BCG bundle covers the three BCG tools, the Bain bundle covers the five Bain tools, the MBB bundle includes everything, and you can also mix any combination of products at checkout. Consumed runs cannot be reused.
Data privacy is a big concern, and as a candidate you should feel confident that your e-mail, name and any other details will remain private. Buying requires a free account — that is what your purchases and remaining runs live on — but your answers are never sold or shared. Checkout is hosted by Stripe, so no card data ever touches this site. The two classic solvers (Ecosystem Solver and Sea Wolf Solver) do their solving in your browser — the scoring algorithms live in the page — and save your results to your account; the timed simulations are scored server-side and produce AI feedback reports; and video-interview recordings are uploaded for transcription and scoring.
There's no time limit — your runs stay on your account until you use them, so you can buy now and solve later. Once you confirm entry to a solver (or start a simulation run), that run is consumed, but you can re-run within the open session as often as you like.
