Description from cryptocompare.com
YB coin is a Chinese clone of YACcoin. It uses scrypt N+1 and ChaCha. The coin has a relatively low block time at 60 seconds but being a clone hasnt really brought much to the table in terms of innovation. Again like Yacoin there is a dynamically adjusted economic model related to the network power that balances the incentivisation to mine and use it depending on its popularity. An inverse relationship.