guessso.rb

class Array
  def multisplit(wordlist, &block)
    result = wordlist.inject([[],[]]) do |memo,word|
      bigaccum, smallaccum = memo
      if block.call(word)
        [bigaccum.push(smallaccum.compact),[]]
      else
        [bigaccum,smallaccum.push(word)]
      end
    end
    return result[0].compact.push(result[1]).compact
  end
end