Kings Indian - Crushed again!
Tentatively entering the Kings Indian mainline Gringo surprised me with a sideline that I had never seen before. After the annoying ...a5 white needed to come up with a plan B and decided to sacrifice a pawn in an attempt to create some weaknesses in blacks position. For a time black was reduced to passivity but eventually managed to create weakness in whites position and exploit the pawn chain using a beautiful piece sacrifice. See if you can find the move that gringo found.