Ok, I give up. What am I missing to solve this?
8 7 3; 125 6 15; 4 9 125
4 12 5; 3 8 9; 7 6 12
12 6 9; 7 245 145; 8 25 3
59 59 67; 46 47 2; 3 1 8
3 12 8; 15 9 157; 6 257 4
12 4 67; 8 3 1567; 9 257 25
79 8 1; 29 27 3; 5 4 6
567 35 2; 456 457 45678; 1 38 9
569 359 4; 569 1 568; 2 38 7
many thanks for any help
digby