I played as black in the following game, and with the help of StockFish I've discovered a few mistakes, one of which was a very serious tactical blunder. However, I'm having trouble figuring out where I went wrong strategically.
[FEN ""] [Event "?"] [Site "?"] [Date "2014.03.04"] [Round "?"] [White "Stockfish DD (50.0%)"] [Black "Ralph"] [Result "1-0"] [StartPly "16"] [StartFlipped "1"] 1.d4 e6 2.Nf3 Nf6 3.c4 d5 4.Nc3 Bb4 5.a3 Bxc3+ 6.bxc3 O-O 7.e3 Nbd7 8.Bd3 c5 9.Bb2 dxc4 10.Bxc4 Nb6 11.Be2 Nbd7 12.c4 a6 13.a4 Ne4 14.O-O b6 15.Qc2 Ndf6 16.Ne5 Bb7 17.Rfd1 Qc7 18.Bd3 Nd6 19.a5 cxd4 20.axb6 Qc5 21.Bxd4 Qc8 22.c5 Nd7 23.Bxh7+ Kh8 24.cxd6 Qxc2 25.Bxc2 Nxe5 26.Bxe5 f6 27.Bg3 Kg8 28. Bb3 a5 29.d7 Ra6 30.Bc7 1-0
Here are some of the specific mistakes that I've spotted, which you might like to add to or elaborate on.
- From what I can tell,
12...a6was a mistake because of
13.a4, leaving me with a weak b pawn and a cramped Q-side.
- StockFish pointed out that
15...Ndf6was a mistake. I'm guessing this is because it allows white to place a knight on e5?
- StockFish showed me that
19...cxd4was a massive blunder resulting in the loss of two pawns and two passed pawns for white.
My original plan, rudimentary as it was, was to aim Queen and bishop at white's K-side down the a8-h1 diagonal, then double my rooks on the semi-open D-file, and finally launch an attack on the king using my knights. As it turned out, I failed to coordinate my pieces properly and was unable to even begin implementing this plan due to white's threats. I just wonder:
- Was this the correct plan to begin with, and if so, how could I have implemented it better?
- If not, what would a good plan have looked like?
- Based on my play in this game, do you feel I need to "go back to school" to learn anything, and if so, what specifically?
Your advice is very much appreciated!