Free practice · boolean · easy
Practice
Apply a precedence constraint
A must occur before B, and B must occur before C. Therefore A must occur before C.
Constraint board
Place forced items before testing open positions
- RecordWrite each constraint
- ForcePlace fixed items and chains
- PropagateUpdate remaining positions
- TestTry valid alternatives
- VerifyCheck every original rule
Translate every precedence, adjacency, window, and exclusion rule into visible placement evidence.