Let me give it a try. I apologize in advance for any mistakes.
1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.Nf3 Be7 5.Bf4 O-O 6.e3 c5 7.dxc5
- White surrenders the center in exchange for pressure against black's d-pawn. It might look like a bad move at first, but it's a typical strategy in the QGD. In my database, it's the most common move.
7... Bxc5 8.Qc2
- White's best shot at keeping the initiative. He delays castling for a while and prepares for Rd1
Black's most challenging setup, preparing the e5 push and opening up the possibility of Nb4, attacking the queen.
A solid move, depriving black's knight of the b4 square and creating the possibility of a b4 push by white.
Renewing the Nb4 threat and making room for the rook on the d8 square. The pin on the knight might also prove to be nasty.
The rook joins the play in an active position and threatens b4, forking bishop and queen. However, the counterintuitive 10. 0-0-0
might be a surprisingly safer option. White needs to start worrying about his king.
10... Be7 11.Rd2?
White underestimate black's strength and makes his first real mistake in the game. Both 10. Be2 and 10. Bd3 are stronger and safer options.
- A strong pawn sacrifice, trying to open lines against white's uncastled king.
12.Nxe4 dxe4 13.Qxe4 Rd8
- Black's best shot at the initiative, building pressure on the pinned rook.
- A dangerous waste of time. 14. Be2 suggests itself, in an attempt to finish development and castle. 14... e5 15. b4
seems to be the critical line, with 15... Qxa3 16. Rxd8+ Bxd8 17. 0-0
neutralizing black's initiative and giving white a comfortable game.
14... e5 15.Bg3 e4
- A strong sacrifice to bring black's bishop into play without letting white develop his pieces.
- And the queen is isolated from the defense of the king.
17.Qf4 Rxd2 18.Nxd2 Rd8
- Black's last piece joins the attack. Meanwhile, white still hasn't finished his development.
- Black threatens to win the knight with either Bg5 and Bb4. The bishop also contributes to a mating net in some variations.
- White manages to stop both Bg5 and Bb4. 20... Bxc5
would be met by 21. Bc4
, which would solve all of white's problems.
- A powerful response. Black threatens mate with Nc2 and white is forced to lose material.
- Traps the queen, which can't leave the diagonal and can't go to e3 due to the knight fork.
22.axb4 Qa1+ 23.Ke2 gxf4 24.Bxf4 Be6 25.Be5 Qc1 26.Bc3 Bg5 0-1