Practice a 5-stage interview flow: symptom, hypotheses, instrumentation, root cause, and fix validation.
1. Round Walkthrough: Sequencer Waits for item_done [Medium]
2. Round Walkthrough: Objection Deadlock with Clean Waves [Hard]
3. Round Walkthrough: APB Reads Return Previous Data [Medium]
4. Round Walkthrough: Out-of-Order Channel Mismatch [Medium]
5. Round Walkthrough: Rare Parallel Deadlock [Hard]
6. Round Walkthrough: End-of-Test False Fail [Hard]Work each puzzle before reading the solution: predict the exact output or answer, name the rule that governs it, then check yourself.