I was told that these two had never been PMing or in any other way letting the other know what would they bet. Ferjo decided to bet 0 as several times before when he had been in this situation (being the next one to fall in) and Microbic just risked the 1 and it worked.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)