APPROVED BY EX-MCKINSEY
& EX-BCG CONSULTANTS

A solution to McKinsey, BCG and Bain recruitment assessments.

Practice that mirrors the real tests. McKinsey Solve: Sea Wolf simulations and solver, Redrock simulations, plus Sustainable Futures Lab simulations. BCG: a Quantitative Reasoning simulation of the 40-minute test, full BCG Casey chatbot experience and the Spark Hire interview. Bain: full HireVue interview and complete Bain SOVA assessment (logical, numerical, verbal and personality). The most accurate simulations available, trial to see for yourself.

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Sea Wolf Simulation · scoring & analytics

Powered by a full AI backend for scoring, behavioural and decision analytics during every simulation run.

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How it works

Simulations and solvers, one disciplined approach across MBB.

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.

1

Most realistic simulation available

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.

3 difficulties · 100+ scenarios
2

Scoring provided at the end

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.

AI scoring & analytics
3

Runs in your browser

No installs, no accounts, no data uploaded. The whole simulation runs client-side — load the page, confirm your run, and practise the Sea Wolf game as many times as you've bought runs for.

Runs in your browser
What's inside

The most authentic McKinsey Solve simulation experience available.

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.

  • 📊

    Sea Wolf Simulation — 3 difficulties, 100+ scenarios

    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.

  • 🏝️

    Redrock Simulation — full Investigation → Analysis → Report flow

    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.

  • 🌱

    Sustainable Futures Lab — AI-powered decision analytics

    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.

  • 🦠

    Sea Wolf Solver — optimal microbe trio, every time

    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.

Sea Wolf Solver — Site 1 · Final
Selected: 0 of 3

Site 1 — optimal conditions

Permeability4–6
Mobility3–5
Energy8–10
Desirable: Thermophilic
Undesirable: Acid-tolerant
Site 2 insight: Permeability 1–4
Live walkthrough

Over 20 tools across McKinsey, Bain and BCG.

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.

acethesolve.com/seawolf — Sea Wolf Solver
Sea Wolf Solver — categorise microbes against site requirements in the live app
3
sites solved back-to-back
4
categories per site
100%
deterministic optimum
Unlock Sea Wolf Solver — — Open the solver
acethesolve.com/seawolfsimulation — Ace the Solve
Sea Wolf Simulation — timed assessment with profile, categorisation and selection phases
3
sites, 30-minute run
4
phases per site
3
difficulty levels
Unlock Sea Wolf Simulation — — (3 runs) Open the simulation
acethesolve.com/redrocksimulation — Redrock Simulation
Redrock Simulation — drag evidence into the Research Journal in the live app
35
minutes, timed
6
cases in the report
6
scenarios to choose from
Unlock Redrock Simulation — — (3 runs) Open the simulation
acethesolve.com/sustainablefutureslab — Sustainable Futures Lab
Sustainable Futures Lab — choose a scenario in the live app
6
full scenarios to choose from
13
questions per run
8
feedback analysis sections
Unlock Sustainable Futures Lab — — Open the lab
acethesolve.com/bcgcasey — BCG Casey Chatbot
BCG Casey — chatbot case interview in the live app
35
minutes, timed
10
question types
60s
recorded recommendation
Unlock BCG Casey — — Open the chatbot
acethesolve.com/bcgquant — BCG Quantitative Reasoning
BCG Quantitative Reasoning — timed test in the live app
40
minutes total
20
questions per attempt
200+
question bank
Unlock BCG Quant — — Open the test
acethesolve.com/bcgvideo — Video Interview
Video Interview — recorded answer to a BCG-style question in the live app
2
firms covered — BCG & Bain
3
questions, up to 5 min each
STAR
pacing + rubric feedback
Unlock BCG Video Interview — — See the Bain version
acethesolve.com/bain-sova — Bain SOVA
Bain SOVA — timed numerical reasoning question in the live app
4
assessments — numerical, verbal, logical, personality
15
timed questions per reasoning test
AI
feedback report on every run
Unlock Bain SOVA — — See all four SOVA tests
From recent candidates

What people said after their assessment.

Real reviews from buyers who used the solvers and simulators to prepare for their McKinsey, BCG and Bain assessments.

★★★★★ 4.9 average · 671 verified reviews
McKinsey671 reviews
🌿 Ecosystem Solver · 4.9 (312) 🦠 Sea Wolf Solver · 4.8 (198) 📊 Sea Wolf Simulation · 4.8 (53) 🏔️ Redrock Simulation · 4.9 (108) 🌱 Sustainable Futures Lab · new
BCG53 reviews
🧮 BCG Quant · 53 reviews 💬 BCG Casey Chatbot · new 🎥 BCG Video Interview · new
Bainnew
🧠 Bain SOVA Numerical · new 🧠 Bain SOVA Verbal · new 🧠 Bain SOVA Logical · new 🧠 Bain SOVA Personality · new 🎥 Bain Video Interview · new
JM
James M.
MBA · INSEAD · Round 1 ✔️
★★★★★

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!

AR
Aisha R.
BA Engineering · London · Round 1 ✔️
★★★★★

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.

DK
David K.
BA Economics · Cambridge · Round 1 ✔️
★★★★★

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.

SP
Sofia P.
LLB · London · Round 1 ✔️
★★★★★

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.

TW
Thomas W.
Ex-engineer · Toronto · Round 1 ✔️
★★★★★

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!

LN
Lena N.
BA Finance · New York · Round 1 ✔️
★★★★★

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.

Pricing

Fair pricing. Pay only for what you need.

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.

The MBB bundle

Every McKinsey, BCG & Bain tool — plus Case Ace, coming soon. 3 runs or attempts of each.

Unlock everything →

Unlocks all tools.

ALL PRODUCTS INCLUDED
— / everything
Save £90
What's included14 tools across three firms + Case Ace (soon)

McKinsey

  • Ecosystem Solver
  • Sea Wolf Solver
  • Sea Wolf Simulation
  • Redrock Simulation
  • Sustainable Futures Lab

BCG

  • Quant Simulation
  • Casey Chatbot
  • Video Interview

Bain

  • Video Interview
  • SOVA Numerical · Verbal
  • SOVA Logical · Personality

Cross-firm

  • Case Ace — AI Case Interviewer Coming soon
  • Full case library (30+ cases)
Case Ace AI case interviewer · live back-and-forth practice on our 30+ case library — included only in the MBB bundle Coming soon Meet Case Ace →
McKinsey5 tools · £10 eachBundle inside
McKinsey bundle
— / 3 runs
save £25
  • Ecosystem Solver — 3 runs
  • Sea Wolf Solver — 3 runs
  • Sea Wolf Simulation — 3 runs
  • Sustainable Futures Lab — 3 runs
  • Redrock Simulation — 3 runs
Unlock the McKinsey bundle →

4.89 · 604 reviews

🦠
Sea Wolf Solver
★★★★★ 4.86 · 198 reviews
— / 3 runs

Full access to the Sea Wolf Solver — 3 runs.

  • Set filters & species categorization
  • Prospect building & final selection
  • Optimal 3-microbe picks per site
  • All three contamination sites in one run
Unlock Sea Wolf Solver →

Runs in your browser · data never leaves your device

📊
Sea Wolf Simulation
★★★★★ 4.88 · 53 reviews
— / 3 runs

Run the full timed Sea Wolf simulation — 3 runs.

  • Full 3-site, 30-minute simulation
  • Profile, categorize, prospects, final pick
  • Scored end-to-end like the real assessment
  • 3 difficulties and over 100 unique scenarios
  • AI-powered behavioural + microbe routing analysis
Unlock Sea Wolf Sim →

See the walkthrough above · — for 3 runs

🌱
Sustainable Futures Lab Simulator
★★★★★ New
— / 3 runs

Run the full timed Sustainable Futures Lab Simulator — 3 runs.

  • 6 full scenarios of varying complexity to choose from
  • 20-minute, 13-question project management simulation
  • Prioritisation, stakeholder management & crisis decisions
  • AI-powered personalised feedback report with 8-section analysis
Unlock Sustainable Futures Lab →

Runs in your browser · data never leaves your device

🏔️
Redrock Simulation
★★★★★ 4.90 · 41 reviews
— / 3 runs

Run the full timed Redrock Island assessment — 3 runs.

  • Full 35-minute Investigation → Analysis → Report flow
  • Research Journal, calculator & drag-and-drop data
  • Six scored Case stages
  • 3 runs included · buy once, run three times
Unlock Redrock →

Mirrors the real McKinsey Redrock assessment · — for 3 runs

BCG3 tools · £10 eachBundle inside
BCG bundle
— / bundle
save £10 vs buying separately
  • BCG Quant Simulation — 3 attempts
  • BCG Casey Chatbot — 3 attempts
  • BCG Video Interview — 3 attempts
Unlock the BCG bundle →

New · the full BCG funnel

🧮
BCG Quant Simulation
★★★★★ 4.87 · 29 reviews
— / 3 attempts

Run the full timed BCG Quantitative Reasoning test — 3 attempts.

  • 40-minute, 20-question timed simulation
  • Question bank from real BCG assessments
  • Flag-for-review, previous/next navigation
  • 3 attempts included · scored breakdown at the end
Unlock BCG Quant →

Popular for BCG London experienced & MBA hires · — for 3 attempts

💬
BCG Casey Chatbot Assessment
★★★★★ 4.9 · 12 reviews
— / 3 attempts

A realistic, procedurally-generated BCG Casey chatbot case — 3 attempts.

  • 35-minute, 10-question timed case
  • Exhibits, quantitative reasoning, risk & structuring
  • Final 60-second spoken recommendation (webcam/mic/text)
  • AI diagnostic report with your recorded answer
Unlock BCG Casey →

Tailored prep for the BCG Casey conversation assessment · — for 3 attempts

🎥
BCG Video Interview
★★★★★ New
— / 3 attempts

Practise the BCG one-way video interview — 3 attempts.

  • 3 BCG-style questions — motivation & behavioural
  • Flexible prep, up to 5 minutes per answer
  • Record on camera, audio or as written text
  • Pacing + STAR rubric feedback report
Unlock BCG Video Interview →

45-minute async budget · flexible prep like the real thing

Bain5 tools · £10 eachBundle inside
Bain Bundle
— · all 5 Bain tools
Save £20 vs buying the five tools separately
  • 3 attempts of every Bain product
  • Timed, exam-true formats
  • Server-side scoring + feedback reports
Get the Bain bundle →

Every Bain tool in one pass: the four SOVA tests plus the video interview

📊
Bain SOVA Numerical
★★★★★ New
— / 3 attempts

Timed SOVA-style numerical reasoning on real business data — 15 questions in 5 blocks.

  • Charts, tables and business exhibits
  • Calculator-friendly, exam-true timing
  • Server-side scoring + feedback report
Unlock Bain SOVA Numerical →

Practise the real SOVA numerical section

📖
Bain SOVA Verbal
★★★★★ New
— / 3 attempts

Timed SOVA-style verbal reasoning — 5 business passages, 3 statements each, True / False / Cannot-say.

  • Real SOVA verbal statement format
  • Answer-type diagnostics in your report
  • 3 timed attempts included
Unlock Bain SOVA Verbal →

Sharpen your judgement calls under time

🧩
Bain SOVA Logical
★★★★★ New
— / 3 attempts

Timed SOVA-style logical reasoning — the full 15-matrix set across 1×4, 2×4 and 3×3 formats.

  • Find the rule, pick the missing cell
  • Pattern-rule walkthrough after marking
  • 3 timed attempts included
Unlock Bain SOVA Logical →

Practise the real SOVA matrix formats

🧭
Bain SOVA Personality
★★★★★ New
— / 3 attempts

The SOVA-style personality questionnaire — 41 forced-choice screens mapped to 8 consulting competencies.

  • 4 statements per screen, each column once
  • Scored against the ideal consultant profile
  • 8-dimension fit breakdown in your report
Unlock Bain SOVA Personality →

Know your fit profile before test day

🎥
Bain Video Interview
★★★★★ New
— / 3 attempts

Practise the Bain one-way video interview — 3 attempts.

  • 4 Bain questions — motivation, judgement & behavioural
  • 45-second prep countdown per question
  • Continuous 25-minute timing · no pausing
  • STAR + business-judgement scored report
Unlock Bain Video Interview →

Real continuous format · practise like it's the real thing

🔑
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FAQ

Questions, answered.

Is this affiliated with McKinsey, BCG or Bain?

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.

How does the paywall work?

After checkout you receive an access token with a personalised return link. Open a solver or simulator, confirm the "enter & consume run" prompt, and one run is consumed server-side — you can then re-run within that session as many times as you like. Every product (Ecosystem Solver, Sea Wolf Solver, Sea Wolf Simulation, Sustainable Futures Lab, Redrock Simulation, BCG Quant Simulation, BCG Casey Chatbot Assessment) gives you three attempts per purchase. If you buy the McKinsey bundle, you get three runs of all five McKinsey tools; the BCG bundle covers BCG Quant Simulation, the BCG Casey Chatbot Assessment and the BCG Video Interview; you can also mix any combination of products at checkout, and the MBB bundle includes everything. Consumed runs cannot be reused.

Does my data leave my browser?

No, 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. We do not create user accounts and the entire solver runs client-side. Your assessment data is never sent to a server.

How long will I have access to the solver for?

There's no time limit — your token stays valid until you use it. 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. Tokens don't expire, so you can buy now and solve later.

Stop guessing. Start solving.

One payment, complete preparation. Get instant access to any solver, simulation or interview practice — or take the MBB bundle and cover every assessment.

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