OTB, it's a lot harder. At the higher level, it's basically impossible. However, those... err.. determined ones have some tricks up their sleeve. Some smuggle a phone into their pocket, then ask to go to the bathroom. In the bathroom, they'll pull up the analysis board and... well... you know what happens next.
Also, I really hope you don't actually want to learn to cheat in irl chess to win a bet 
What is irl chess?
In real life.
How to cheat chess IRL? You watch their history. Look at the openings they always lose against. Memorize how to play with that opening he can't beat.
How to cheat chess IRL? You watch their history. Look at the openings they always lose against. Memorize how to play with that opening he can't beat.
that's not cheating, it's just creepy
How to cheat chess IRL? You watch their history. Look at the openings they always lose against. Memorize how to play with that opening he can't beat.
Dude that't stalking. Stop being so creepy
This happens all the time at higher ratings.
I've seen masters check their pairings, then 5 minutes before the round they're on their laptops looking up their opponent's games online, what they normally play, what they've lost to recently, scrolling through their theory so they can be reminded of their prep really quickly, etc.
Also players will walk around during the tournament and note what openings people are playing.
Some people have certain things they like to do if they know e.g. you're a 1.d4 2.c4 player... but if you play something else they have a different way of playing.
Ask Magnus Carlsen to whisper the best moves in your ear via microphone lol
AHHHHHHHHH!!!!!!!
How do you cheat in chess irl? Is this one of the few handful games in the world where nobody can cheat? like tell the guy to turn around your playing against and switch peices or sum. asking so i can defeat my friend and win 100£
You move the piece halfway on a square and then you can adjust it to whichever square you like. Don’t actually do that lol
I don't know for sure but from what I hear, people ask to go to the bathroom and then use their phone to input things to chess engines.
I just read a wikipedia article on cheating in chess out of curiosity.
I don't know how people can be bothered.
Farting around inputting an entire game into an engine? Even if for some God only knows what reason I wanted to cheat...like, I'd be executed for losing a game...That's a lot of bother.
This guy makes an IRL/OTB cheating device which vibrates and tells you which moves to make:
In this video he shows how it can't be detected by a metal scanner:
riiight
i forgot about the time that the whole chess community decided it was fine to humiliate someone who was like 19 or 20 by accusing them of cheating (wrong) bad enough by itself but then saying that the method was a s*xual toy
... think about it and then realise how bad (and incredibly offensive) such jokes are
How do you cheat in chess irl? Is this one of the few handful games in the world where nobody can cheat? like tell the guy to turn around your playing against and switch peices or sum. asking so i can defeat my friend and win 100£