I like to make it clear on Four in a Row, most of the Grandmasters are making other players give up to them for points and creating more than 1 account and giving up to themselves for points. I feel the players who do that should be banned. 
They are breaking them rules:
2.1 points banking 
2.2 operation jumping 
2.3 encouraging your opponent to leave the match 
2.4 intentionally loosing in favour of your opponent 
2.5 accepting your opponent's behaviour who is intentionally loosing 
2.6 using assistance from computer programs or other people 

I sure the Grandmasters who do the intentionally losing thing are using a computer program also thats why i added that.