|White to move after Black's 30. .....Nxe4|
31. Rc1 …….
Nc3 is still required to maintain the huge advantage. The knight is untouchable there and keeps the White bishop off so many key squares. Part of Black’s advantage is that due to the current pawn structure and location of pieces, the knight is at least a point better piece than the bishop. Restricting the movement and scope of your opponent's pieces is the same as being up actual material. Always remember that the strength of a piece is not always their “starting value – it’s usefulness is!
Black’s advantage is down to (-1.8).
35. Rxc8 Nxc8
One move too slow! That is why chess is such an amazing game.