And indeeed I made an error showing the path of magic knight's tour, making a mis-step over the final few moves… 61-62-63-64.
This one, from the video, is wrong (it is legitimate tour, but not quite magic):
And this one is right (I think):
Each column and row should add to 260.
Here are some great resources from people who really know there stuff when it cmes to Knight's Tours…
Some good knight's tour links:
Great overview by Ben Hill and Kevin Tostado: http://bit.ly/1hYHoLE
Notes and huge resource by George Jelliss: http://bit.ly/1kCGGWp
On using "ants" to find tours: http://bit.ly/1cqxcUd
Good stuff on magic knight's tours: http://bit.ly/1apxScE
On the number of knight's tours: http://bit.ly/Lj4NKh