1.e4 d5 2.exd5 Nf6 3.Nc3 Nxd5 4.Nxd5 Qxd5 5.Nf3 Nc6 6.d4 Bf5 7.Be2?!
7.a3 is probably the safest move. This is a waste of time in view of Nb4.
Better was 8.Bb5+ c6 9.Ba4
Giving away the two bishop without a reason. Also, the knight in b4 may prove a bit misplaced, while the bishop in f5 looked quite good, with possibilities of going to g4 and ruining enven more white's pawn structure. 8. ... Nxd3 9.cxd3 Bg4 -/+, it's thoug for white to avoid the doubling in the f file and to defend d4.
Difficult to judge this move. The question is: what to do of white's doubled pawn? d4 is a target, and in this sense the doubling on the d file makes sense. Also, White will probably castle kingside, and black leave himself with the option of a pawn storm on that side. On the other hand white has very automatic moves to defend the pawn, and create counterplay along the half-open c-file.
Logical, as it frees a piece, but black might find hard to keep the initiative.
11.a3 Nc6 12.Be3 Bd6
Maybe misplaced, as it obstruct the attack on the d pawn.
Despite his structural problem, white have a decent game. I found difficult to point out were black's play have gone wrong after the mistaken Nxd3. here white has some good chances on the half open c file, and it's balck who has to defend.
13...Kb8 14.Qa4 Qa5
At this point I though that exchanges should be in black's favor, as I should have a better endgame.
White understandably doesn't want to exchange, and now has a threat on the knight.
Preparing to double the rook. White seems better here.
I didn't find anything better, the knight will need to move and c7 can use some more protection.
17.Rfc1 Ne7 18.Ne5!?
In a way, a triumph of the isolated doubled pawn. White uses his superior center control to force the undoubling of the pawns.
18...Bxe5 19.dxe5 Rhd8
But black now has a target, that is the backward pawn on d4.
Shutting of his bishop. Again, it is hard to jusdge this position. white has total control over the c file, and is very aggressively attacking black's king position. But he also has a bad bishop and a backward pawn.
A mistake, the c6 pawn is even more of a target than the c7 pawn. It doesn't have the protection of the b7 pawn, which is pinned. This move weakens the king position and take away c6 from possible use from the knight.
Black has to spend a move to offer more protection to c6 and untie his pieces.
Tempting, the rook needs to leave now and cannot go to b4 to offer additional protection to the pawn in d4. I hoped this way to increase my pressure on d4. But this move is extremely weaking, exposing my king even further and accentuating the weakness of c6.
I already have to drop any idea of attack on d4, as any knight move immediately loose the c pawn. It is true that then I can probably win the d4 pawn, but this can be more of a help to white, opening a line for the bishop to my king position.
White is trying to force other weaknesses in my position.
more pressure on c6.
25...Rd5 26.Qf3 Nf5
Black is summoning all his strength to try to defend all his weaknesses.
27.Rc5 Qb7 28.Rxd5?!
A mistake in my opinion, as the recapture fixes the pawns in the center and makes the plight of white's dark square bishop very hard to solve.
28...cxd5 29.Rxc8+ Qxc8 30.Qe2 Qc4 31.Qxc4?!
Again, I think a mistake. White goes in an endgame with a bad bishop against a good knight. I''m not saying that black has a meaningful advantage here, but if advantage there is it must be black's.
31...bxc4 32.Kf1 Kb7 33.Ke2 Kc6 34.Kd2 Kb5 35.Kc3
White avoided the penetration of black's king and is preparing to free the bishop from protective duties.
35...Ka4 36.Bg5 Nxd4!
Despite the result, I still think that this move is strong. I sac the knight in exchance of what will soon became two connected passed pawns, and quite advanced at that.
37.Kxd4 Kb3 38.Be7
Probably the best defense.
38...Kxb2 39.Bb4 a5?
I believe that this move is the one that made the vistory slip away. I thought that I rather get rid of the pawns on the a file, avoiding possible troubles. But I didn't see that my king is then stuck and cannot reach the kingside to attack white's other pawn. A possible continuation could have been Kc2, followed at some point by a6. White's king cannot leave his post and his bishop is unable to attack the pawn in a6. I think that would have been a victory for black.
40.Bxa5 Kxa3 41.Kc3!
Black kins is caged.
41...Ka2 42.Bb6 Kb1 43.Be3! h5
this is clearly a draw. White cannot make himself a passed pawn since all my pawns are on white square and I don't need to make pawn moves anymore. And black cannot hope that white will allow black's king any freedom.
44.g4 hxg4 45.hxg4 Ka2 46.f4 Kb1 47.Bd2 Ka2 48.Bc1