> First time I have tried this approach, seems very powerful.

Well not sure if this problem isn't too easy for a good test, considering that the naive approach already gives a solution of 95166, which is probably good enough in most cases.¹

I have the impression that a little branch and bound with just the 3 or 4 shortest edges per node (instead of just one) would quickly produce much better results.

Cheers Rolf

( addicted to the Perl Programming Language)

¹) at least for the OP.

In reply to Re^3: Travelling problem (Anyone better 86850?) by LanX
in thread Travelling problem by Dirk80

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