Free practice · single-choice · medium

Practice

Choose a valid sequence

Tasks W, X, Y, and Z must follow these rules: W before X, Y immediately before Z. Which sequence is valid?

Constraint board

Place forced items before testing open positions

  1. RecordWrite each constraint
  2. ForcePlace fixed items and chains
  3. PropagateUpdate remaining positions
  4. TestTry valid alternatives
  5. VerifyCheck every original rule

Translate every precedence, adjacency, window, and exclusion rule into visible placement evidence.

Choose one answer