In Blitz chess and Backgammon, if your opponent makes an illegal move this move counts, even if it was not according to the game rules. As an opponent, you can play on as it stands. But obviously you can stop the clock and make your opponent redo the move in a legal matter.tbhp wrote: ↑13 February 2026, 16:04If they knew what they were doing, you should report both the bug and the cheater.
I mean, how could they not know? They can see that the points they earned are not what they should be. So they would be willingly benefiting from the bug, throwing it under the rug so to speak, which is cheating.
It's like if you are playing chess, and your opponent accidentally moves a piece in a way that benefits you, and you say nothing and just let the game go on. That would be cheating by omission.
Especially in Blitz chess illegal moves usually happen without intent - even to top grandmasters. And not always their opponent will notice the mistake and they will just play on.
On BGA there are so many instances that you just trust that BGA will count the points correctly for you. If you get added or subtracted a point by a BGA bug you will usually not notice it (ofc depending on the game and the game situation). Thus, there is usually no way to know if the opponent were "knowing what they were doing" when a bug happened. On BGA it is not possible to report a player because they exploited a game bug - and that is a good feature!