GM resign in winning position?

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shine5

Was there any incidents where a GM overlooking some tactics or moves resign a game which in fact was winning for him?

Crazychessplaya

Macro shouldn't of resigned in the game below. 36...Bg1! wins.

http://www.chessgames.com/perl/chessgame?gid=1099222

shine5

Crazychessplaya wrote:

Macro shouldn't of resigned in the game below. 36...Bg1! wins.

http://www.chessgames.com/perl/chessgame?gid=1099222

Wow!. Both GMs missed the winning moves! Was Marco under time pressure?