Some fun lines in these variations .......chrisw wrote: ↑Tue May 07, 2019 3:39 pme4 is absolute key move, cutting blacks ability to pivot on that square.MikeGL wrote: ↑Tue May 07, 2019 2:53 pmI tried to run analysis with MultiPV and just ends up with B vs R endgame, but a pawn up and slightly better for black.
Better space and possible K activity compared to K of white, but might require deeper analysis.
30. Ra1 Bd3 31. e4 dxe4 32. Qa4 Nb3 33. Ra2 is better than the above Rad1 (which threatens nothing and allows black to improve his position)
after 33. Ra2 Nc1 is just drawing, Nc5 also a draw. NxN is draw, some positions are like your line, but a vital tempo ahead (various defences, including Ke3 and counter exchange sac, the tempo is important here)
a6 would be an attempt to keep pieces on the board, but it isn't enough and the position holds, I think.
Key was e4, it gave the king a blockade square on e3, prevented the mating threat lines with Qe4 and gained just enough time. Therefore draw, not decisive black win by strangulation.
position after 30. Ra1 Bd3 31. e4 dxe4 32. Qa4 Nb3 33. Ra2 a6 (trying to keep white in a bind) 34. Ke3 Rb5
can white play Qxa6? Try without your engine ....