The case interview that pushes back.

A live case interview that follows up on what you actually said, and keeps asking until your answer holds up.

Built by Chang Liu, former McKinsey Engagement Manager and interviewer, with offers from McKinsey, BCG, Bain, and PwC Strategy&. Every case is scored against the bar she used in real interviews.

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The Case Room (thecaseroom.ai) is live AI case interview practice for candidates recruiting for Consulting. It runs a spoken mock case interview that responds to what you actually said, pushes back, and shows exhibits, scored against a standard calibrated to its founder, Chang Liu, a former McKinsey Engagement Manager and interviewer with offers from McKinsey, BCG, Bain, and PwC Strategy&. It also includes Learn, a step-by-step course from what consulting is to every part of the case. Your first case is free; Sprint is $89 USD a month for 15 cases, Season is $229 USD for 3 months and 50 cases, and 1:1 coaching with Chang is $250 USD a session.

Chang Liu, founder of The Case Room

Former McKinsey Engagement Manager and interviewer

Chang Liu

Chang's coaching clients have received offers from

  • McKinsey & Company
  • BCG
  • Bain & Company
  • Kearney
  • Roland Berger
  • Deloitte
  • EY-Parthenon
  • PwC Strategy&

Firm names belong to their owners. The Case Room is not affiliated with or endorsed by these firms.

Exhibit 01 The Interview

It builds on what you said. Then it challenges it.

Most AI case tools work like this: you talk, you stop, you press submit, you wait for a score. That's a voice memo with a rubric attached, and nobody has ever been interviewed that way. Here the interviewer takes what you just said, builds the next question out of it, and pushes on the part that doesn't hold up. It pushes until your answer holds up.

Press play: a real exchange, captions and exhibits and all, ending in the detailed evaluation. No signup needed.

A couple of minutes, with sound. Headphones recommended.

A

Ashley

listening

C

The candidate

your seat, in the real room

I'm done with my response Give me a hint
Mic on Notes Transcript End

Voice

Voice interview

Natural voice in, AI voice out. Practice the way you'll actually be interviewed.

150

Cases and growing

Curated across industries, difficulty, and case types. Real prompts, real exhibits, real math.

Doing more cases isn't the same as getting better.

Most people grind through dozens of cases and plateau. Reps teach you nothing until you review, digest, and connect them. The Case Room carries your full history and turns it into coaching, so each case is more targeted than the last.

i.

It knows your strengths and weak spots

It tracks your performance across frameworks, math, synthesis, and intuition, and reads the trend, so it coaches the real you, not just today's case.

ii.

Your assessment, then a real debrief

First a clear assessment so you know exactly where you stand, then a debrief that turns it into progress: what happened, where you shone, and the concepts to shore up.

iii.

Homework and your next case, chosen for you

Targeted practice for what just happened, plus the next case picked to attack your weak spot. A real plan, not a generic browse.

iv.

Retry & learn

Fumble a step? See what went wrong and how a strong answer sounds, then re-answer and compare against your original, side by side.

See a sample reportStart a free case

Exhibit 02 Learn

Learn how a case works. Then do it live.

Learn is a step-by-step course from what consulting is to every part of the case. Each lesson teaches one part, then has you practice it before you move on. When you are ready, the live interview is where you put it to work.

Level 0

What consulting is

The job, the firms, and what the interview is testing.

Free

Level 1

What a case is

How a case runs, start to finish, with a full case walked through.

Free

Level 2

Every part of the case

Business thinking, clarifying questions, frameworks, case math and market sizing, exhibits, brainstorming, and the recommendation.

Sprint and Season

Level 3

Going deeper

Industry primers, live now. Common questions by case type, non-traditional cases and harder cases are coming soon.

Sprint and Season

Coming soon: fit interview practice, including McKinsey's Personal Experience Interview, and a story bank to build and sharpen your examples. Leave your email and we will tell you when it opens.

Start Level 0 freeStart a free case

What people say about Chang and her methods

Offers: Bain, BCG, Deloitte

“I wouldn't have been able to land interview invites without her help.”
Allison L.

Offer: McKinsey

“She helped me correct bad habits of being generic and not asserting my assumptions and taught me how to see and talk about third and fourth level insights for charts which I was told I did very well on during the interviews!”
Kaitlyn Y.

Offer: McKinsey

“She has a strong ability to break down the case-solving process and make preparation feel much more manageable.”
Wei S.

Offers: EY-Parthenon, Deloitte, PwC Strategy&

“She is very direct with feedback and also gave me actionable things to change and then we would practice again to make sure the learnings stuck.”
John A.

Offers: PwC Strategy&, Kearney

“My case interview level improved significantly after her coaching and practicing session.”
Cecilia S.

Worked with Chang at McKinsey

“I can attest not only to her expert skills of structuring business problems & solutions, but also to her distinctive ability to coach!”
Gregg B.
Read more stories →

Exhibit 03 Pricing

Simple, honest pricing.

Everyone starts with a free case and the first two levels of Learn. Coaching with Chang is the layer on top, whenever you want it.

Free

One full case to see if it's for you.

$0

  • 1 full case interview
  • Live voice AI interviewer
  • Scored report with question-by-question feedback
  • Learn Levels 0 and 1
Start for free

Sprint

One focused month of reps.

$119

$89 USD/mo

introductory

Everything in Free, plus:

  • 15 cases a month
  • Unlimited free redos
  • Learn Levels 2 and 3: every part of the case, plus industry primers
  • Progress trends by dimension
Get Sprint

Season

Going all-in this recruiting season.

$299

$229 USD / 3 months

introductory

Everything in Sprint, plus:

  • 50 cases over 3 months
Get Season

Coming soon for members: fit interview practice and a story bank.

Only need one more case?

Unlock any single case for $10 USD when you open it, no plan required. It stays yours, redos included.

“New case” = one you've never unlocked. On a paid plan, redos of a case you've already done are always free.

Exhibit 04 1:1 Coaching

With Chang: a real person, sold separately

Prepare with someone who's been on both sides of the table.

Before a real round, nothing replaces a human who has sat in the interviewer's chair. Chang spent five years at McKinsey, where she was an interviewer, so she knows what goes on the real scorecard, the patterns that separate a hire from a ding, and the blind spots you can't see in yourself. Pay and pick your time in one step, over Zoom.

Single Session

$250

50 min · one-on-one

One focused 50-minute session. Pick the one you need:

  1. 1.Case coaching
  2. 2.Full mock interview
  3. 3.Networking and coffee chat prep
  4. 4.McKinsey PEI prep
  5. 5.Behavioural and fit prep
Book a session →

The Case Room Intensive

$1,500

By application only

The full-season programme. Five 50-minute 1:1 sessions with Chang, any mix from the menu (case coaching, full mocks, PEI, fit, networking), scheduled around your interview dates. A Season Pass with 50 live cases to practise between sessions. A written resume review. Unlimited email support from Chang through your season.

Apply for the Intensive →

Exhibit 05 Story

Chang Liu

Founder · Former McKinsey Engagement Manager and interviewer

Former McKinsey Engagement Manager and interviewer; received offers from McKinsey, BCG, Bain, and PwC Strategy&. Kellogg MBA.

“The candidates who do well treat the interview like a conversation, not a verbal test.”

I didn't grow up knowing what consulting was. Before my internship interviews, the only person I had to practice with was my dad, and the reason it worked was that he knew how I think.

That's the whole idea behind The Case Room. Most tools tell you the “right answer.” This coach learns how you think (where you take shortcuts, where you freeze on a curveball) and coaches that. The evaluation is calibrated to how I actually gave feedback as a McKinsey interviewer. Read my full story →

Start for freeBook 1:1 with Chang →

Exhibit 06 Questions

Questions, answered.

Do I need a credit card to start?

No. You can run a full case free (live interview, evaluation, and debrief) without entering any payment details.

Do I have to speak out loud?

Yes, you talk through the case live, out loud, the way you would in a real interview. That real-time pressure is the point. No microphone handy? A typed mode is available as a fallback.

How long does one case take?

About 30–40 minutes for a full case start to finish, including your debrief. You can pause and pick it back up if you need to.

Is this only for McKinsey, or does it work for BCG and Bain too?

It works across all of them. The case types and skills are the same ones tested at McKinsey, BCG, Bain, and other top firms. The evaluation is calibrated to how Chang gave feedback in real McKinsey interviews, a bar that holds up wherever you're recruiting.

Is there a course, or only practice?

Both. Learn is a step-by-step course from what consulting is to every part of the case. Levels 0 and 1 are free for everyone; Levels 2 and 3 come with Sprint and Season. The live case interview is where you put it to work.

I'm new to casing. Is it beginner-friendly?

Yes. Start with Learn Levels 0 and 1, free, then take your first case. The library spans beginner to interviewer-level tricky, and every case comes with a full debrief that shows you what a stronger answer sounds like.

What counts as a "new case," and are redos free?

A new case is one you've never unlocked before. On a paid plan, re-attempting a case you've already done is always free, so you can drill the same case until it clicks. The free case is a single attempt.

Do I pick the case, or is one assigned?

Both. You can browse the library and choose, or take the next case the coach recommends based on where your last performance was weakest.

What's the difference between the platform and 1:1 coaching with Chang?

The platform is self serve practice you do on your own, any time. 1:1 coaching with Chang is live human time with an ex McKinsey interviewer, sold separately, for when you want an expert to diagnose what's holding your performance back.

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