Rattate Chess was developed by Maurizio Monge from Italy. Bologna version hereby compiled and released by Jim Ablett is not the most recent one.
It should be called v1.0 Release Candidate as seen in various posts. You may easily prefer to skip that one and use rather the definitive fine-tuned Nosferatu version of it, which is clearly stronger.
Bologna is rated 2194 in 40/40 list of CCRL. On Android, expect no more than 2000.
Download Rattate Bologna: HERE