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minor correction: "sandbagging". the term is common in the scrabble tournament community too, and i'd always assumed it was metaphorically "ambush by hitting someone over the head with a sandbag", but apparently that's only the presumed etymology, and there is at least one other theory out there: https://ridemonkey.bikemag.com/threads/anybody-know-origins-...

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My understanding is it’s from car racing. Putting sandbags in during qualifying to make min weight. Then removed during the race to make the car lighter and faster.

just a typo :) thanks!

I think chess.com is actually writing code to combat sandbagging. I don't know if they're using machine learning for it yet, but it would certainly be possible for a deep learning system to spot probable sandbaggers, if they have enough history of their games.

It is a hard problem. People have good and bad streaks. People sometimes play drunk, which isn't actually sandbagging but has the same effect. People sometimes play tired and miss moves that would be obvious if they were more awake.

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