[EricH]

Cases 1 and 2 are potentially not a CLIMB. If you're contacting only the side rails, then yes, you're only contacting 2 levels at a time and the climb will count. If you're using the corner rails, you're contacting more than 3 levels at a time, and the climb will not count. (Remember, the floor is a level.) Cases 3 and 4 are then moot.

Cases 5-9 are almost certainly a climb. However...

In all cases, remember that the robot must contact Level 1 before contacting Level 2.