Taking a Stab at Stokyo, Part 1
Without further ado, here it is:
I had thought it was very possible that white would capture on d5, instead of the queen move. 12. Nxd5 cxd5 with a possibility of either 13. Ng3 or 13. Nc3. My plan in that case was 13. … e4. I estimated the position would have been =or += [ 13. … e4? 14. Nxe4 and if 14…. dxe4?? 15. Qxe4 threatening mate and the rook on a8 +-. 14. … Nc6 maintains equality in that situation ] . Material will be even after trades. White has a strong queenside set of pawns and will be able to develop the rest of the pieces quickly. [ After 13. Nc3, 13. … Bb7 -/+. Other line, 13. Ng3 f5 14. Bxf5 Bh4 15. Qg4 Bxg3 16. Be6+ Kh8 17. fxg3 -/+ ]
Black will also be able to develop the rest of the pieces quickly but will have a weakness on a7. One possible line: 13. Ng3 e4 14. Nxe4 dxe4 15. Bxe4 [ ?? -+ ] Rb8
From the game position above, I still felt the evaluation was either = or =+ [ -+ ]. Both sides have some developmental problems. White hasn’t castled and is going to take a couple of moves to get the black-squared bishop into the game; with the white-squared bishop blocking the d3 pawn it is likely the b2 pawn will have to be moved to allow the black bishop room.
Black has a slight advantage in space and can quickly develop the white-squared bishop. I was initially looking toward 13. … Nf4 [ -/+ ], with an attack on the d3 bishop, at the same time giving some protection to the pawn on e5. However, white is probably fine after either 14. O-O or Be2 [ both -+ ].
Before deciding on my move, I wanted to check out my databases again. At this point, there was only one game available, with 13. … f5. It took me a while to appreciate the move; in my normal move selection process, I would have never seriously looked at the possibility. It felt to me that it weakens the king side and potentially drops a pawn.
In the game S. Bodega-C. Almao (1998), play continued: 14. Qxe5 fxe4 15. Bxe4 Bc5 16. d4 Re8 17. Bxd5+ cxd5 18. O-O Rxe5 19. dxe5 -+. Playing through that line, I figured that position was significantly dynamic enough to go ahead and play the move. And is the primary position I’m concerned with in this practice exercise.