Karol Majewski wrote: ↑Tue Jul 24, 2018 10:03 pm
OK, so here's the position. Black to move. After moving pieces and looking at evaluations I came to the conclusion that 10...Bd7 is objectively stronger than 10...Nd7. Now I want to - kind of - prove it and check if the engine (probably latest Stocky) will find 10...Bd7 in a single run. This requires very deep analysis and very powerful machine, I think. Best line should start like: 10...Bd7 11.Nxd7 Nxd7 and now probably 12.Be2 or 12.Rd1 or even 12.g3...
[d]r1b1kb1r/1pq2ppp/p3pn2/2p1N3/Q2P4/2P1B3/PP3PPP/R3KB1R b KQkq - 3 10
Well here are my choices with my own decisions,
10... Bd7 is the only move, other moves are quite bad. 10.--- Nd7 simply cramp position, white knight on e5 is already strong, and black cant avoid saving bishop pair.
12. Be2 is simply the best, the plan is keeping an eye on black's queen side via Bf3 . Alternative Bd3 is not that good as king side attack is not an option in this position and also Bd3 simply blocked "d" file. Alternative g3, Bg2, O-O is not necessary as Be2,O-O, Bf3 work the same .(so g3, Bg2 ,O-O simply delay castling by one tempo and simply weakened the king side pawns structure).
12. Rd1 or Be2 may be exactly the same evaluation by engines or Be2 is better because they both may reach to the same position after transposition, however, Be2 is logical choice first cos, it logically move the priority piece.
And also after castling, there is better option in moving .14.Rfd1, and 15. Rac1.
If you move 12. Rd1 in that position you are simply losing king side's rook's best "d" file.