this way to exchange rook, black lost more than a tempo, it lost two moves. i wonder why CryingLoser,the no.1 chinese chess player, will play like this. it is a basic for every not so good chinese player.
8.Rxb9 Rxb9 9.Nxg7 Rb6 10.Ri2 Rb2 11.Re2?
red's move was a bad move, his next move is Nb3 to trade rook, black did not know to take advantage of this, black should have played Rc2 instead of Pc6.
i did not want to continue viewing this kind of game....