We're getting close! It's episode XXIX in our series on the Ruy Lopez, and this time around the main lines of the Marshall Gambit are under review. We start with the traditional main lines with 12.d4 Bd6 13.Re1 Qh4 14.g3 Qh3 15.Be3, then move on to 15.Re4 and finally 12.d3. There's a lot of material there, but I've done my best to pick out the most important lines and at least give a good sense of the key variations along with some of the typical motifs that apply in many Marshall sub-systems.
As always, the show is free - have a look!