Query a company ledger with planted reconciliation issues, build board-ready P&L and budget reports, master window functions over time series, and learn to think like a finance analyst who never ships a wrong number to the CFO.
25 missions · runs entirely in your browser · no account needed
Read the briefing
A Slack message from your manager
Explore the schema
5 tables in a star schema
Write your query
Full SQL editor with autocomplete
Get expert feedback
Graduated hints, not just pass/fail
Answer questions from the CFO, Controller, FP&A Manager, Treasury Analyst, and Senior Auditor about spend, budget, vendor risk, and revenue.
Duplicate vendors, un-posted journal entries, inconsistent account-type casing, refund leakage, and duplicate payments that quietly wreck your totals.
Budget variance, gross margin, running cash burn, YoY revenue growth, percentile ranking, cohort onboarding, and late-posting analysis.
Every mission maps to a real finance analyst task — P&L decks, audit reports, vendor risk reviews, and CFO-ready dashboards you’ll see on the job.
Each mission is a real request from someone at the company. Difficulty increases as you go.
A company ledger star schema with 5 tables, 5,500+ rows, and planted reconciliation issues. Duplicate vendors that inflate spend rankings, un-posted journal entries hiding from totals, inconsistent account-type casing that splits your GROUP BYs, refund leakage, and duplicate payments that quietly skew vendor risk.
●dimension tables ● fact tables
The P&L has to tie out and the CFO wants the board deck ready.
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