1. Double Log-in - I think if double/duplicate login at the exact same time is not allowed, it will reduce cheating.
2. Account Pilot - In our country, this has been extremely popular for cheaters. They will not use engine but they will just let their stronger friends play in their account. I think the solution is just to show all the sessions where the account is currently logged in in the activity tab of the profile. For example one is living somewhere in Asia and other players will see that before a tournament there is a log in activity somewhere in US/Europe and then after a few hours it is back to somewhere in Asia. Accounts who do this should be punished.
3. Game Delay - This is the solution to avoid cheating in big tournaments where there is Zoom required. You can see the player's screen and face but you cannot really see his/her surrounding. So he/she can still cheat if someone is watching his/her game from a place where the zoom cannot see. Let's say under the table or at the back of the pc/laptop. But the only way they can cheat is by watching the player's game from another device/account and the solution to this is game delay. Let's say the delay is about 10% of the initial time control or maybe 5 moves delayed. So that if I watch someone's 1+0 game there is 10 second delay and if I watch a 15 minute game there is 1.5 minutes delay. I think this is used in other e-sports like Dota 2 to avoid this kind of scenario.
This is just a suggestion because I don't really know anything about programming or running a platform like lichess so I don't know how hard to implement this kind of stuff.
Thank you
2. Account Pilot - In our country, this has been extremely popular for cheaters. They will not use engine but they will just let their stronger friends play in their account. I think the solution is just to show all the sessions where the account is currently logged in in the activity tab of the profile. For example one is living somewhere in Asia and other players will see that before a tournament there is a log in activity somewhere in US/Europe and then after a few hours it is back to somewhere in Asia. Accounts who do this should be punished.
3. Game Delay - This is the solution to avoid cheating in big tournaments where there is Zoom required. You can see the player's screen and face but you cannot really see his/her surrounding. So he/she can still cheat if someone is watching his/her game from a place where the zoom cannot see. Let's say under the table or at the back of the pc/laptop. But the only way they can cheat is by watching the player's game from another device/account and the solution to this is game delay. Let's say the delay is about 10% of the initial time control or maybe 5 moves delayed. So that if I watch someone's 1+0 game there is 10 second delay and if I watch a 15 minute game there is 1.5 minutes delay. I think this is used in other e-sports like Dota 2 to avoid this kind of scenario.
This is just a suggestion because I don't really know anything about programming or running a platform like lichess so I don't know how hard to implement this kind of stuff.
Thank you