Practice a 5-stage interview flow: symptom, hypotheses, instrumentation, root cause, and fix validation.
1. Round: Mid-Test Reset Hangs the Regression [Medium]
2. Round Walkthrough: Objection Deadlock with Clean Waves [Hard]
3. Round Walkthrough: APB Reads Return Previous Data [Medium]
4. Round: Sequencer Grants Nothing After lock() [Hard]
5. Round: Scoreboard Deadlock Through Bounded Mailboxes [Hard]
6. Round: Drain Timeout That Never Fires [Hard]Work each puzzle before reading the solution: predict the exact output or answer, name the rule that governs it, then check yourself.