Although I think this is the best chess game out there i have some issues in playing online multiplayer mode namely- 1.There is no time control in online multiplayer mode 2.There is no undo/takeback button in online multiplayer mode if both players agree to have it. 3.When in an online game,the internet connection is suddenly lost , the move i made while disconnected is updated on my board but not on my opponents board ,even after i have reconnected to the internet. So game remains incomplete.