To get hold of the raw what-squares-have-I-visited data, I open the Veloviewer summary page in Google Chrome and press Ctrl+Shift+I to switch to developer mode. Then type copy(d3.values(explorerTiles)) to copy the data to the clipboard. Copy it into a text editor – it is pretty self-explanatory JSON format.

Lots of other data is available this way – not just the explorerSquares variable.

Once you have copied the JSON the attached Python script (unfortunately saved as .doc due to a WordPress limitation) will do a bit of analysis on it.Â You will probably want to mess with the last three lines of the script

- filename – the path where you saved the JSON down to
- The last two arguments to parse_visited_squares – these are the co-ordinates of the square you want to define as your origin. I have chosen 8146,5439 which is the top-left of my current square in the Chilterns, Oxfordshire, UK.
- The last argument to number_to_complete. This is the biggest square you want to analyse. It should be bigger than the biggest square you have down so far. I chosen 50.

activities_parser

Output looks like a bit like this:

For N=39 the square with top-left at (0, 0) is complete!
For N=40 the square with top-left at (0, 0) is complete!
For N=41 the minimal solution needs 7 squares to be visited
The top left square must be (-2, -1) and the following squares are needed:
(3, -1)
(33, -1)
(34, -1)
(35, -1)
(36, -1)
(37, -1)
(38, -1)
For N=42 the minimal solution needs 15 squares to be visited
The top left square must be (-2, -2) and the following squares are needed:
(3, -1)
(33, -2)
(33, -1)
(34, -2)
(34, -1)
(35, -2)
(35, -1)
(36, -2)
(36, -1)
(37, -2)
(37, -1)
(38, -2)
(38, -1)
(39, -2)
(39, -1)
//etc...

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