Roger de Coverly wrote: ↑Mon Oct 22, 2018 3:57 pmIt appears that Korneev has threaded his way through the opening complexities and can now grind to victory with his extra pawn.
Apparently if instead of 13. .. h6, Black castles, then 14. Nxh7 draws after accurate play, a line first seen in an Estrin game in the 1940s. Engines think Black is a little better, which means they assess compensation for the pawn, but not enough. 14. Qe2 is the most popular idea against 13. .. h6, sacrificing on g5, but regaining the piece using the pin on the e file.
The live games didn't actually work for about half an hour, when arbiter Geert Bailleul got them going with the aid of a crib sheet which had been sent to me.
In return for my help, I asked him to show me the games, one in particular, on a site where engine analysis was available . He refused .
So I only saw Roger's lines in the post mortem or just now.
20 Bb1 saves a crucial tempo on 20 Bc2 and 22 Bf5 is simply losing. The game ended 25 Rd1, Re8; 26 Qd3, Qxb2; 27 Rb1, Qxa2; 28 Rxb7, Nxd5; 0-1