Octophobia

A number-grid puzzle: clicking a cell adds its value to each of its eight neighbours and drops it to zero. The board must be cleared within a move limit, but any cell that reaches eight ends the attempt. One shared board is released daily, and a Zen mode deals endless boards without a move limit.

Category

Math, Logic

Languages

Any (no reading needed)

Daily puzzle

Yes

Unlimited mode

Yes

• 6.7
  RNGdle

  Roll a random number and collect badges
  Play
• 6.4
  Refiner

  Select digit groups that meet bucket rules
  Play
• 6.2
  Dozenal

  Merge numbered tiles built around twelve
  Play
• 6.1N
  Number Crunch

  Pop matching numbers in the fewest clicks
  Play
• 6.1
  Think in Odds

  Reason through a probability puzzle
  Play
• 5.8
  Sequences

  Predict the next number in a sequence
  Play
• 5.5
  FruitArena Daily

  Clear a number grid by boxing sums of ten
  Play
• 4.5
  SEQUE-NCD

  Find the missing number in a sequence
  Play