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Cheat detection

is there any software online that I can use to confirm my suspicions of having played a cheat? something I can pass a pgn to and it could give percentage chance of cheating going on.
In otb, bathrooms and cell phones are the way. It means we need faster time controls to combat cheating. Also a rule that you can't leave for the restroom while it is your turn. Spectators are another issue. No way for players to know what signals are given behind his back.
@boilingFrog said in #4:
> Cheaters gonna cheat ...
You have never asked the forum about this before, it's very unlike you. Yeah, we know your opponent cheated by the way you are suspicious. Everyone hates cheaters so tell the site to ban him. If they don't ban him, then the cheat detention must be bad. Let's call the software designers stupid and tell Fide to allow un-auditable systems to detect cheating so that it can detect cheaters when we say they are cheaters.

Okay, maybe I went a bit far there!
@ST4RSCR34M said in #1:
> is there any software online that I can use to confirm my suspicions of having played a cheat? something I can pass a pgn to and it could give percentage chance of cheating going on.

You can't detect a cheater by only one pgn. You have to analyze more games, you have to consider factors like time control and so on to detect cheaters.
@Meriten said in #7:
> You can't detect a cheater by only one pgn. You have to analyze more games, you have to consider factors like time control and so on to detect cheaters.

I agree in essence, Lichess would probably use more than one game to make their conclusion thorough enough to to meet the the outcome for people proven to have cheated.

But you can detect cheater with only 1 move! Your certainty would be low, and at higher ELO, it would be even lower. They are trying to resolve the certainty of the detected move, They can find people arbitrarily easily, but if they ban people who didn't cheat and include it in their analysis, it can cause a run-away system.

How many games you have is an important metric, more important may be the ratio of false positives to total positives and false negatives to total negatives of your system.
@darKnight1d4 said in #3:
> Apparantly chess.com have the best cheat detection system
Why are you booing me? I'm telling the truth.
"Your thumbs down mean nothing to me, I've seen what you cheer for" - Rick Sanchez
This is one I've heard of:

github.com/Namelecc/phalanx

You'll need a lichess API token for this. I haven't tested it myself. In any case, if someone is cheating, report them using the official channels. I have no idea if I can additionally mention the results of these tools as reasons for reporting so the mods can investigate using the existing tools they already use.

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