# File lib/quiz1/t/solutions/Jim Menard/solitaire_cypher.rb, line 84
    def move(card, distance)
        old_pos = @cards.index(card)
        new_pos = old_pos + distance
        new_pos -= (@cards.length-1) if new_pos >= @cards.length
        @cards[old_pos,1] = []
        @cards[new_pos,0] = [card]
    end