Can I change more than one letter at a time?
No, each step changes exactly one letter.
Do intermediate words need to be real?
Yes, every word in the ladder is checked against a dictionary.
What if there are multiple solutions?
The shortest valid chain is usually preferred.
Can words be different lengths?
Standard Word Ladder uses equal-length words, though variants exist.
Is this a vocabulary or logic puzzle?
Both. You need a vocabulary and the ability to plan a sequence.
