Dozenal

A number puzzle played on a grid of numbered tiles that are dragged onto one another to add them together, with combinations built around the number twelve. Three daily boards come at easy, medium and hard difficulty, each with its own title, alongside a practice board and a browsable archive of past days.

Category

Math, Logic

How you play

Find the equation

Languages

Any (no reading needed)

Daily puzzle

Yes

Archive

Yes

• 6.8
  Knotilus

  Split ten numbers into three linked sequences
  Play
• 6.6
  Cagey

  Fill number cages to hit arithmetic targets
  Play
• 6.6
  Dodeku

  Place number tiles to match the target sums
  Play
• 6.5
  Ophex

  Combine seven numbers into one target number
  Play
• 6.4
  Refiner

  Select digit groups that meet bucket rules
  Play
• 6.3
  Number Island

  Group adjacent numbers to hit target sums
  Play
• 6.1N
  Number Crunch

  Pop matching numbers in the fewest clicks
  Play
• 6.1
  SUMS

  Place numbers in order using adjacent totals
  Play