15 into 14 best min fragment found: 5 Cut up 15 sticks of length 14 like this: 3 x (7 + 7) 6 x (6 + 8) 6 x (5 + 9) Reassemble as 14 sticks of length 15 like this: 6 x (7 + 8) 6 x (6 + 9) 2 x (5 + 5 + 5)