Instance name : R204
Authors : Bent & Van Hentenryck
Date :    2001
Reference : Technical Report, CS-01-06, Department of Computer Science, Brown University, September 2001.
Solution
Route 1 : 6 94 96 92 97 42 43 15 57 41 22 75 56 23 67 39 12 76 79 9 51 50 28 53 26 54 55 4 72 74 73 2 13 95 59 93 85 98 37 100 91 16 61 5 60 83 18 89
Route 2 : 27 52 7 88 31 10 30 70 1 69 62 11 19 46 45 17 86 44 38 14 99 87 84 8 82 48 47 36 49 64 63 90 32 20 66 65 71 35 34 78 81 33 3 77 68 80 29 24 25 21 40 58