Hanoi

I’m writing a CLI tool to solve the Tower of Hanoi puzzle/game in Swift.
I finished up writing classes for the Game, Stacks, and Pieces.
Now I’m in the middle of writing the algorithm to solve the game. It
seems to break when the recursive Stack.move method’s counter (the
variable that’s decremented and passed to the recursive function/method)
gets to 1.

The logs should start with

[[1, 2, 3, 4], [0], [0]]
[[2, 3, 4], [1], [0]]
[[3, 4], [1], [2]]
[[3, 4], [0], [1, 2]]
[[4], [3], [1, 2]]
[[1, 4], [3], [2]]
[[14], [2, 3], [0]]

and continue on.

Instead they say

[[1, 2, 3, 4], [], []]
[[2, 3, 4], [1], []]
[[3, 4], [], [1, 2]]
[[4], [1, 3], [2]]

and stop (see attached screenshot).