### Tell us what’s happening:

The other case in which you have to move the disk necessarily from `source`

to `target`

is when the source list is **not** empty **and** the last disk in `source`

is lower than the last disk in `target`

.

Add an `elif`

statement to check this condition. Then, set the `forward`

variable to `True`

if the condition is met.

I keep getting an error on this one too!

### Your code so far

```
NUMBER_OF_DISKS = 3
number_of_moves = 2**NUMBER_OF_DISKS - 1
rods = {
'A': list(range(NUMBER_OF_DISKS, 0, -1)),
'B': [],
'C': []
}
def move(n, source, auxiliary, target):
# display starting configuration
print(rods)
for i in range(number_of_moves):
remainder = (i + 1) % 3
if remainder == 1:
print(f'Move {i + 1} allowed between {source} and {target}')
forward = False
# User Editable Region
if not rods[target]:
forward = True
elif rods[source] not [] and rods[source][-1] < rods[target][-1]:
forward = True
# User Editable Region
elif remainder == 2:
print(f'Move {i + 1} allowed between {source} and {auxiliary}')
elif remainder == 0:
print(f'Move {i + 1} allowed between {auxiliary} and {target}')
# initiate call from source A to target C with auxiliary B
move(NUMBER_OF_DISKS, 'A', 'B', 'C')
```

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### Challenge Information:

Learn Recursion by Solving the Tower of Hanoi Puzzle - Step 24