your example was wrong calulated 6+8+2+4=20 not 30 ;)
My solution:
6+8+3+9+2+4+1= 33
If i rotate 90°, then there was a ∞, so an other solution is ∞
your example was wrong calulated 6+8+2+4=20 not 30 ;)
My solution:
6+8+3+9+2+4+1= 33
If i rotate 90°, then there was a ∞, so an other solution is ∞