Hi!
It is like PCC (PlayChess.com) which is accessible using Fritz GUI, this one is accessible using InfinityChess GUI program. You have a room for engines/bots/autochess programs called "Engine room" like PCC but free, there you select your engine and book and play against other programs, plus we have tournament that administrator give money to the winner. In engine room you find bots that are there inviting to play 4/2 games but if you offer any timer these bots come to your table to challenge you. There are autochess players there too beside the bots but not many...
To play you open your program/GUI, go to "Play Online" option, select your ID and password, and when enter, select "Engine Hall", you can see all players there choosing "Players" in the top, then go to "Playing Mode" for you pick your engine and book, as picture shows I picked polyglot.exe with my setting chosen but you can get engine and book separately. You can chat and to offer a challange in lobby you go to "Seek".
PS The problem there is 1/0 games, even you being very fast in opening like +20 moves per second, in end game you become slow and can lose by time.PS Autobots there (not autochess players) have all 16cores or 24cores, good to test and improve your book.PS Find me there with "Hya" or "XsupremeX" ids.PS They have tournament with money prize like $200 $500 to winner.PS Can convert your games played in PGN and use in your Fritz.[You must be registered and logged in to see this image.]