Crack the case.
Land the offer.
Practise consulting case interviews the way they really happen: original cases, an AI interviewer that pushes back, and a partner-style scorecard after every round.
- 16 original cases
- Big 4 & MBB styles
- Scored on six skills
Maya · Engagement manager
AI interviewer · Big 4 Live 12:48
Maya is typing
Exhibit 1
Ancillary revenue per pax, USD
| Nusantara | 6.5 USD |
|---|---|
| IslandJet | 11 USD |
| SkyLintas | 14 USD |
41% below IslandJet
Practise for interviews at
- Deloitte
- PwC
- EY-Parthenon
- KPMG
- McKinsey
- BCG
- Bain
- Oliver Wyman
- Kearney
Everything in one room
Everything you need to crack the case
Learn the frameworks, rehearse with an interviewer that pushes back, and drill the maths until it's automatic.
An interviewer that pushes back
Choose a supportive Big 4 manager or a demanding MBB engagement manager. It holds data back until you ask, hands over exhibits, checks your maths and asks “so what?”.
Watch a live interviewCoach · only you see this
Maths on the clock
Two-minute reps for percentages, growth and break-even, with your personal best to beat.
38% of 2,450
Structure like a partner
Build issue trees, then compare them with the model answer.
16 original cases
Fictional South-East Asian clients, real problems, worked maths.
Practise with a partner
Book a slot, swap interviewer and candidate, score each other.
Tue 19:00 · Market entry
You interview first, then swap
Know every round, firm by firm
How Deloitte, PwC, EY-Parthenon, KPMG and MBB really interview, round by round.
- Deloitte
- PwC
- EY-Parthenon
- KPMG
- McKinsey
- Online testsRound 1
- First roundRound 2
- Group exerciseRound 3
- Partner roundRound 4
18 short lessons
From MECE to the pyramid principle, each lesson ends with a drill.
- MECE thinking and issue trees
- Profitability: beyond revenue minus cost
- Synthesis and the pyramid principle
After every interview
Know exactly what to fix next.
A partner-style scorecard: six skills, a clear verdict and feedback that quotes your own answers.
- Scored on structure, maths, charts, creativity, synthesis and communication
- A verdict you can act on: advance, borderline or not yet
- Your next drill and case, picked for your weakest skill
Nusantara Air · AI interview · 27 min
Advance to the next round“Clean, MECE structure and a confident recommendation. Sharpen your maths under time pressure.”
| Structure | 4.5 |
|---|---|
| Math | 3.5 |
| Charts | 4.0 |
| Creativity | 3.5 |
| Synthesis | 4.0 |
| Communication | 4.5 |
How it works
From “what's MECE?” to offer-ready in 30 days
- 1Week 1
Learn the moves
Short lessons on frameworks, consulting maths and synthesis.
- 2Week 2
Practise real cases
Solve step by step with hints, exhibits and a model answer.
- 3Week 3
Interview with AI
Rehearse live with an interviewer that adapts and pushes back.
- 4Week 4
Walk in ready
Your readiness score tells you when you're ready for the real thing.
Case library
Real problems. Fictional clients.
Every case comes with exhibits, worked maths and a model answer, written for Big 4 and MBB interviews.
Profitability · Airlines
Nusantara Air: Ancillary Revenue Gap
Full planes, thin margins: find the money hiding in bags, seats and clicks.
Profitability · Food & beverage retail
Kopi Kita: Café Profit Slide
Same 40 cafés, half the profit. Is it the beans, the rivals or the morning rush?
Market sizing · Mobility / ride-hailing
Jakarta Ojek: Sizing Motorbike Ride-Hailing
Eleven million people, endless traffic, two wheels. How big is the ride?
M&A · Healthcare
Medika Group: Buying a Hospital Chain
USD 900m for 12 Indonesian hospitals. Is the premium paid for by synergies?
Built for momentum
Prep that sticks
A plan sized to your interview date, a streak worth protecting, and a readiness score that tells you when you're ready.
A plan for today
Three tasks, about 40 minutes, picked for your weakest skill.
Streaks and personal bests
Small daily wins that add up before the big day.
A readiness score
Built from skill, volume and consistency. 80+ means first-round ready.
Today's plan
1 of 3 doneProfitability: beyond revenue minus cost
Lesson · 9 min
Kopi Kita: Café Profit Slide
Case · 25 min · trains maths
Mental math sprint
Drill · 4 min · your focus skill
Practice streak
12days · best 15
FAQ
Questions, answered
Still unsure? Start a case as a guest: it takes one click and nothing to undo.
Is Caseroom really free?
Yes. Every case, lesson, drill and the AI interviewer are free for everyone. There is no paid plan.
Do I need an account?
No. Start as a guest in one click. Continue with Google any time to keep your progress on every device.
How close is the AI interviewer to a real interview?
It runs the case like an interviewer would: it holds data back, hands over exhibits, challenges your maths and asks for a recommendation. Then it scores you on six skills interviewers look for. It's practice, not a prediction.
Which firms does it prepare me for?
Big 4 (Deloitte, PwC, EY-Parthenon, KPMG), MBB (McKinsey, BCG, Bain) and firms like Oliver Wyman and Kearney. Firm guides cover each round.
Are the cases real?
The problems are realistic and every number checks out, but each client is fictional and each case is original.
Your interview is coming.
Be the candidate they remember.
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