I  think  some people  here 

are using  computer  softwares .  when 

someone  has  rating  1400  or  1500  and 

play  as  2200  .  Also  if  looses   with 

1399  how  can  win  with  1730    4  games  

without  loosing  and  without  mistakes. 

That  is  shame  for  that  players  ,  they 

are  not  chess  players.

Discussion of cheating in not encouraged in the main forum. A specific group cheating-forum  has been created for such speculations.

Erik has posted a topic cheating-at-chess-on-chesscom---questions-and-answers outlining chess.com's policy and thinking on this subject.