2007 VBA: Cannot figure out recursion to show all possible paths in a 4 x 4 grid.

[SamT]

How do you plan to recognize a correct path?

Sometimes it's easier to start with a possible Path and see if it exists.

http://gwicks.net/dictionaries.htm

to avoid reusing a grid Cell
Dim CellUsed(1 to 4, 1 to 4) As Boolean
set array Item True when corresponding Grid cell is used