Can anyone tell me if you know any website where you can play online chess with other people
and that both man can invest crypto and winner takes it all?
There are certainly a lot of competitions that you can take part in on chess.com and you don't really have to pay on it and at the same time the winner gets awarded not just a trophy 🏆 but at the same time they also get cash prizes as well, therefore I do think you can use it pretty much for what you are aiming for but you must play on the site for a while till you are allowed to take part in these competitions as well
I think it's pretty hard to win these tournaments, there are certainly real professionals there, people who play chess every day ... I think notblox1 thinks more of a friendly game with some small stakes, in terms of amateur chess!
other than that you can do P2P completions make a thread of your own, have a live game with people who are interested here on the forum as well, there are no bounds, if there are not any particular games then you can just make your own, if this suits well then at the end of the day then you can make your own website as well.
The big problem with online chess is cheating, I read somewhere that the only way to be 100% sure is that both players have a witness behind them! It's too easy to turn any chess on the hardest and drag your opponent's moves like yours and copy the computer's moves to the first game! Some people say online is good when it's free, when money gets in people become too greedy and they start using the strategy from above!
But anyway I would like to play against trusted forum members, that can be interesting! I didn't play for a long time so I am a bit rusty but I would try it anyway, just for fun!