Randomization & Constraint Puzzles

What this section covers

Puzzle-centric randomization interview drills focused on legal-set counting, solver bias, dist math, solve-before effects, and practical randomize() usage with inline constraints and hooks.

Topics

Constraint Solving Order Puzzles — 6 puzzles
Distribution Puzzles (`dist`, `:=` vs `:/`) — 6 puzzles
solve...before Bias Puzzles — 6 puzzles
randomize() with Puzzles — 6 puzzles

How to practice

1. Open each topic and attempt every puzzle cold, writing your predicted answer first.

2. Only then read the step-by-step solution and confirm the exact answer.

3. Re-read the 'why candidates get it wrong' note — that is the actual interview signal.

4. Finish with the section Q&A to rehearse explaining the rule out loud.

Related topics

• VLSI DV Interview Puzzles hub