I can't rewatch the video there, since it's disallowed in my country for copyright reasons (since it's a British show). But I recall the original showing.
What surprises me is that a room full of chess players would fail to notice what he was doing to cheat (or, simply gaming the system, depending on the governing rules for the event in question), when move-copying like this is rather old-hat, to chess players, anyway.
Magician beats grandmasters without being a good chess player!



What numbers (again, I can't watch this video, and am relying on memory here)?
He may well have cheated in more wholesale fashion for one game (à la magic earpiece, etc). He is a stage magician.
The story I've always heard regarding this is that the GMs knew what was going on, but didn't care and went along with it because they wanted to be part of the show.

That seems plausible as well, except that it makes them look stupid, and GMs don't generally like things that make them look stupid (as they pride themselves on intelligence). They'd surely have to have been well-paid (again, plausible).

Not all of them where GMs.
The ninth "GM" didn't have any title whatsoever and simply was some guy from an university-chess club.
This means that the Magician is quite decent at chess himself. Not master level but good enough to beat a club player while memorizing moves of other games.

If someone can explain what numbers he got right (I can't view the video), I can probably explain several ways of doing it.

I remember watching. It was quite interesting, if a bit toungue in cheek.
Not sure how mutch of it is legit. Derren Brown is a showman afterall.

Magician beats grandmasters without being a good chess player!
Yes I know about this story. The magician's name goes about Borislav "Magic/Smelly Feet" Ivanov, The Shoedini?

I can't rewatch the video there, since it's disallowed in my country for copyright reasons (since it's a British show). But I recall the original showing.
What surprises me is that a room full of chess players would fail to notice what he was doing to cheat (or, simply gaming the system, depending on the governing rules for the event in question), when move-copying like this is rather old-hat, to chess players, anyway.
You could get a proxy for it, HMA offers good port proxies.

could someone explain how he got the numbers right?
I thought about that when I first saw that video some months ago. I have no satisfying explanation.
But maybe it is good enough. He got one number wrong. He wrote them all after each other so it was possible to combine them in different ways.
You can read 113 as 1,13, 11,3 or 1,1,3.
The amount of pieces left at the end of a game is statistically probably always close to around these numbers.
So he asked the guys in the right order to get the closest match to the numbers written down.
Still seems kinda unlikely but for a TV show the explanation "it was probably staged" would always work.
This is a very cool video: http://www.youtube.com/watch?v=evZmpsl3jI0