Hello, I recently discovered some unusual wins in the public game history of one of my opponents. After a few moves his opponent mysteriously resigns the game. This player has a loss record and has only played against him. My suspicion is that the player is using a second account to resign games to himself and boost his own rating. What can be done about this?
A sample game: 1.c4..d5 2.cxd5 black resigns?!