Sven Bot
Try playing more offensive - It's alot harder to defend that attack and Sven is a personality bot that likes to defend, so if you attack, there's a higher chance you win. No guarantees.
I find Sven really inconsistent, he does blunders, looks like sometimes he's willing to give up some material for no apparent reason, and I've seen him not even defending his queen (although rare). But he's better than me the rest of the time. As a result I will win maybe 1 in 3 games but it's not really satisfying when it happens. Personally I prefer bots to be accessible (for your level I mean), but not do straight blunders like humans can do, it's a bit of a waste of time when it happens.