Method: SudokuBuilder::Builder#poke

Defined in:
lib/sudoku_builder/builder.rb

#poke(number, poke_with = []) ⇒ Object

pokes holes in a built sudoku to make it solvable. arranged by level of difficulty.



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# File 'lib/sudoku_builder/builder.rb', line 31

def poke(number, poke_with = [])
  @sud.to_hash
  poke = []
  until poke.count == number            # number is related to difficulty.
    poke << rand(0..80)                 # 0 - 80 refers to the index of the sudoku cells.
    poke = poke.uniq
  end
  poke.each do |p|                      # pokes random holes.
    @sud[p] = poke_with
  end
  Builder.new(@sud)
end