CanadianClub wrote on 10/08/15 at 08:30:31:
But...what do you play against c5? As a 1.d4 player this bothers me the most. I thought even study some anti-silicilans and go for 2.e4 (Bb5 sicilians and 3.g3 vs e6 sicilians, but I think I am going to surprise anybody with this; and if this repertoire is to get playable middlegames, I assume I will have less experience than my Silicilian opponent whith this). Another option, of course, is go for symmetrical English (a line I have to study anyway because of 1.Nf3 Nf6 2.c4 c5).
I asked a similar question in the Anti-Sicilian Bb5 thread
http://www.chesspub.com/cgi-bin/chess/YaBB.pl?num=1239027581/0 see Reply #13 onwards.
I have not finished looking at 3 g3. I just finished entering the games in SCID vs PC today. Will now have to analyse the middle game and also answer the question whether it is similar to KIA a la Gawain Jones.
On a very brief look as I was entering the games, Kornev's explanations are not bad. He is also very thematic, he wants to push d4 in one go soonest possible, and most suggested improvements he has are quite active, e.g., g4, Bf4, Rd1(support d4 push).
Also the games in database are very recent, 2010 onwards. Used by lower rated players to get a draw and occasionally a win. Young US player Jeffrey Xiong has used it.
Middlegames are either playing against IQPs (Black) or 3-pawns majority against 2-pawns on Q-side, similar to c3 Anti-Sicilian (see Sveshnikov's book which has a chapter on this motif).
I think not too hard to learn, ideas not too difficult to absorbed and implement.
Only not sure it is "sharp" enough, but then you are wanting to play the Reti as a 2nd opening.
PS, I am hoping to look at Peter Svidler's recent game at the World Cup and his demolition of Karjakin …… that was a Barcza/KIA/Reti, I think.