Is the Danish Gambit viable?
As a gambit with 2 sacrificed pawns, it's surprisingly good! It's evaluated by engines at approx. -0.5/-0.6.
Do grandmasters play the Danish Gambit?
c3. This opening used to be very popular in the past, then lost some of its appeal for a while. Recently the gambit has been revived by Grandmasters such as Garry Kasparov and Alexander Morozevich.