Practice
Lines

Entropic Lines

Every three cells in a row span low (1-3), middle (4-6), and high (7-9).

Tips
  • Any three consecutive cells hold one low, one middle, one high.
  • Know two neighbouring bands and the third is forced.
  • The pattern repeats every three cells — cells 3 apart share a band.
📖 Learn the rule first ▸
Drills