engmaster: 8) E4 preparing the move d5.
8) c6 black protects d5 and opens the diagonal d8-a5
9)h3 preventing the freeing maneuver Ng4.
9) Re8 mobilising the rook
11) Be3, mobilising the bishop
12) Qd2, typical lining up of the queen threatening B-g7 swapping off the defending black bishop.
15)Rec1, at this stage white has more space and an advanced pawn chain. The black Kt on f8 is in a very passive position. White seeks to gain control of the key C file.
15) Qa5, black seeks to mobilise his queen and generate counterplay.
20) Bb6 a great move this severely cramps the black rooks, the key issue is that black is short of maneuvering space. White will now shift the attack to the King side