White to move! What is the most accurate way for white to continue?
Black can, of course, put his own rook on e8 then on e2 before the king leaves d3, but white will just exchange the rooks when the black rook reaches e2 with check, while waiting, white will play d5 ensuring he queens a move ahead of black- long to to exchange the new queens and at least draw with the g-pawn.
I saw this earlier. Dubov lost a critical tempo with 1.Re5+, and after 1....Kd3, the white rook no longer had time to to get back to the 2nd rank to protect the b2 pawn.
Kind of a strange mistake, but the time was short and the pressure high- all Dubov needed was to draw to move on to the finals against Grischuk. The right move was 1.Rxh5- from h5, the rook has time to get to h2 and the king to clear to g1 so that the b-pawn is defended.