Can you please elaborate on how it is 0% house edge? How does it work and why do you have a 0% house edge?
Don't be baited by the fact that this site is not using standard House Edge. Your chances of winning are still extremely slim.
You might read and direct your question here:
https://bitcointalk.org/index.php?topic=1492457.0 - It is an official thread of bitcoinbetting.website.