Received from Richard Tucker a couple of hours ago (case closed?) Best, É. ------------- Here's my attempt (no idea how to find the best solution): 20 23 24 25 26 27 28 29 30 34 35 36 37 38 39 40 45 46 47 48 49 50 56 57 58 59 60 67 68 69 70 78 79 80 89 90 91 100 122 133 144 155 166 177 188 192 Weight 3224.