The song title says it all!
This stretch will most likely seem impossible at first, but trust me regular training and you will be able to do it.
It doesn’t matter how small your hands are!
I had one student with tiny hands who could eventually make the stretch from 2 to 6.
Remember, take it easy. If you can’t do the 2 to 6 fret stretch then start with the second half of this song 2 to 5. Work up to 2 to 6.
This will make your hand ache and I don’t recommend practising this song for anymore than 3 to 5 minutes at a time.
Build up your stretching endurance and aim for a long and sustained tone.