So if I'm seeing this right then the standings are
/yuri/: 4 points, GD +2
/pro/: 4 points, GD +1
/k/: 3 points, GD +1
/monster/: 0 points, GD -4
If /monster/ can win against /yuri/ we'll have a good chance to get through. Otherwise we'll have to at least tie against /k/ to advance.