Thank you! I considered having the exit require a 6 but I assumed it would make the puzzles harder to design and I don't feel confident about my ability to design puzzles. But I will keep it in mind if I develop the game any further.
And I would also have liked more puzzles. with a couple of hours more I might have been able to make more. I have made it easy to add more level, easy on a technical plane that is. The hard part is figuring out a good puzzle design...
But I'm glad you liked it!