schawipp wrote:I have tried to reconstruct the chess game from the video:
1.e4 Nc6 2.Nf3 d5 3.Bd3 Nf6 4.exd5 Qxd5 5.Nc3 Qh5 6.O-O Bg4 7.h3 Ne5 8.hxg4 Nfxg4 9.Nxe5 Qh2#tango wrote:BTW, he played horribly - probably (hopefully) far below his potential.
Well, 3 Bd3 looks weird but it is at least not a direct blunder. In fact, we have a direct blunder in this game by Magnus Carlsen, namely his 7. move Ne5. After 8. hxg4 Nfxg4 9. Re1 there is no immediate danger for white, and black is simply a piece down. After the game, Magnus confirms exactly that and explains that his move 7 was meant as a kind of trick move.
I can't tell if you're seriously saying Carlsen didn't see he was losing a piece. Obviously he played trick moves because he was handicapped very severely (30 seconds with no increment on his clock). And Bd3 is a blunder, albeit not a tactical one. It's terrible positional move that beginners frequently make - blocks your central pawn, misplaces his bishop, makes further development harder by hemming in his queen and dark square bishop.
IMHO such thing wouldn't happen, if a Go professional played against an amateur in a public video.
Seriously