Of all these things when talking about money laundering, it is not possible to act because as many have said, KYC alone is the biggest deterrent to those who try to do it and those who try it would be very foolish, and they cannot Camouflage themselves to be able to do it. things inside the casino and then play and withdraw, I don't know if a player can withdraw little by little what they want or will give them enough time to investigate it, because if a person makes a large deposit and plays a little and then wants to withdraw a little bit of money I don't know if they leave it or submit to a great demand kyc, so these things are what must be seen to think that it is money laundering , I currently doubt it.
I doubt thus would work. If you make a huge deposit or win a huge amount of money you are mostly likely going to be asked to pass kyc even if you don't withdraw the whole amount and only make small withdrawals every now and then. Casino owners are smart and you can't fool them like this. Better stay safe and don't get involved in illegal activities in first place.