Chess.Net

So if you want to be sure your opponent cant cheat with a comp, just make sure he is using CNFW (put it in your formula).

Of course, if you're playing a slow game, he could be manually typing in the moves into a program and then relaying his replies... If someone is that desperate.. pity them. But they cant do it in lightning.

Unfortunatly it is not true, some managed to emulate CNFW, a Spaniard created the emulator a few years ago, and it was still being downloaded regularly last time i checked ( few months ago).