Engine Detection • page 1/2 • General Chess Discussion • lichess.org

Does Lichess have methods to detect dumbed down software such as Chessmaster,Hiarcs, Rodent,Fritz etc. set around 2000-2400elo
range?

Does Lichess have methods to detect dumbed down software such as Chessmaster,Hiarcs, Rodent,Fritz etc. set around 2000-2400elo range?

Cedur216

edited

#2

I think not automatically during the game but by post-hoc inspection, yes

there are detection tools for basically every chessbot I believe

I think not automatically during the game but by post-hoc inspection, yes there are detection tools for basically every chessbot I believe

Solal35

#3

Hello,

Yes Lichess cheat detection covers all rating range (fortunately).

Hello, Yes Lichess cheat detection covers all rating range (fortunately).

cosen

#4

To Solal35 I hope your correct .I appreciate your positive answer.

Best Regards,
cosen

To Solal35 I hope your correct .I appreciate your positive answer. Best Regards, cosen

CaseyReese

#5

@cosen said in #1:

Does Lichess have methods to detect dumbed down software

Lichess uses two different software agents to detect computer assistance:

Irwin looks for play characteristic of chess engines: https://github.com/clarkerubber/irwin

Kaladin looks for play uncharacteristic of either player: https://github.com/lichess-org/kaladin

Things like Elo and accuracy don't come into play.

@cosen said in #1: > Does Lichess have methods to detect dumbed down software Lichess uses two different software agents to detect computer assistance: Irwin looks for play characteristic of chess engines: https://github.com/clarkerubber/irwin Kaladin looks for play uncharacteristic of either player: https://github.com/lichess-org/kaladin Things like Elo and accuracy don't come into play.

AsDaGo

#6

No matter what engine cheaters use, they will usually take around the same time every move. While Lichess doesn't judge solely on that alone, I believe it takes it into account to flag games for further analysis.

Alakaluf

#7

IMO it is impossible to detect clever engine use at all. And with the advent and further development of machines like Maia, there will come the time when you don't even need to be clever to stay undetected when using an engine. Is it one, two or four years into the future?
What will online chess look like then?

IMO it is impossible to detect clever engine use at all. And with the advent and further development of machines like Maia, there will come the time when you don't even need to be clever to stay undetected when using an engine. Is it one, two or four years into the future? What will online chess look like then?

cashcow8 edited

#8

I believe lichess uses move-time as part of the analysis too. You might see in a game a single move that takes 90 seconds to 2 minutes in the middle-game, followed by a number of moves that take about 9 seconds each. That's a common pattern of someone who has put their position in an engine and then uses it for a few moves to get a favourable position once the opening has ended.

I saw an account that got marked shortly after doing just that.

Of course, there is often a legitimate reason for a long pause in a game, e.g. having to open the door because a parcel arrives, or needing to use the bathroom, or if travelling, something else that requires a small gap.

I believe lichess uses move-time as part of the analysis too. You might see in a game a single move that takes 90 seconds to 2 minutes in the middle-game, followed by a number of moves that take about 9 seconds each. That's a common pattern of someone who has put their position in an engine and then uses it for a few moves to get a favourable position once the opening has ended. I saw an account that got marked shortly after doing just that. Of course, there is often a legitimate reason for a long pause in a game, e.g. having to open the door because a parcel arrives, or needing to use the bathroom, or if travelling, something else that requires a small gap.

Tenakel

#9

@cashcow8 said in #8:

Of course, there is often a legitimate reason for a long pause in a game, e.g. having to open the door because a parcel arrives, or needing to use the bathroom, or if travelling, something else that requires a small gap.

Or the woman is in birth pangs and you should drive her slowly to the hospital.

I don't think the movement time used plays a significant role in cheat detection. If this were the case, cheaters could adapt very quickly and simply run their moves at random intervals.

@cashcow8 said in #8: > Of course, there is often a legitimate reason for a long pause in a game, e.g. having to open the door because a parcel arrives, or needing to use the bathroom, or if travelling, something else that requires a small gap. Or the woman is in birth pangs and you should drive her slowly to the hospital. I don't think the movement time used plays a significant role in cheat detection. If this were the case, cheaters could adapt very quickly and simply run their moves at random intervals.

cashcow8

#10

I'm not in cheat detection but I believe it is used in addition to purely the quality of the moves played and whether they match the engine moves, particularly to catch "part-time" cheating.

I don't want to put specific games into the main forums but if you DM I can show you the game I have in mind.

I'm not in cheat detection but I believe it is used in addition to purely the quality of the moves played and whether they match the engine moves, particularly to catch "part-time" cheating. I don't want to put specific games into the main forums but if you DM I can show you the game I have in mind.