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successfully completed the restricted branching based on the shortest two or three next available edges

My threaded C version has now completed restricted branching at shortest 2,3,4,5,6,7 available edges and the best it found are:

2 - 134842 1s 14e5 perms. 3 - 114847 23s 30e6 perms. 4 - 102428 4m .5e9 perms. 5 - 99505 15m 5e9 perms. 6 - 99056 1h 53m 30e9 perms. 7 - 92705 4h 7m 69e9 perms.

Note: The numbers are provisional in as much as I have repeated them to check they are repeatable; given the possibility of non-determinacy due to threading.

I'll leave it running overnight on 8.


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In reply to Re^12: Travelling problem (Anyone better 86850?) by BrowserUk
in thread Travelling problem by Dirk80

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