26 into 20 best min fragment found: 7
  Cut up 26 sticks of length 20 like this:
    4 x (9 + 11)
    6 x (8 + 12)
    16 x (7 + 13)
  Reassemble as 20 sticks of length 26 like this:
    8 x (13 + 13)
    2 x (8 + 9 + 9)
    4 x (7 + 8 + 11)
    6 x (7 + 7 + 12)