7 into 6: min fragment 2   [v1-66-g4e22cc3]
  Cut up 7 sticks of length 6 like this:
    4 x (4 + 2)
    3 x (3 + 3)
  Reassemble as 6 sticks of length 7 like this:
    4 x (4 + 3)
    2 x (3 + 2 + 2)