1. d4 Nf6
2. c4 g6
3. Nc3 Bg7
4. e4 d6
5. f3
[d]rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR b KQkq - 0 1[/d]
The evaluation of Stockfish 8 is below par as Black:
Analysis by Stockfish 8 64 BMI2:
5...0-0 6.Be3 a6 7.h4 e5 8.dxe5 dxe5 9.Nge2 Be6 10.Qxd8 Rxd8 11.Nd5 Bxd5 12.0-0-0 c6 13.Nc3 Nbd7 14.cxd5 cxd5 15.Nxd5 Nxd5 16.Rxd5 Nf8 17.Kb1 b5 18.Rxd8 Rxd8 19.a4 bxa4 20.Bxa6 Ne6 21.Bb5 Bf8 22.Bxa4 Nf4 23.g3 Rd3 24.Bxf4 exf4
+/= (0.35) Depth: 36/50 00:17:54 5487MN
(Kai, 12.03.2017)
From this opening I built a 5-mover opening book (EPD file) by a method which I will describe later. This "Sämisch" EPD file of 300+ openings can be found here:
http://s000.tinyupload.com/?file_id=612 ... 1070438816
From these openings, I self-played Stockfish dev. for 1000 games at 10''+0.1''. The results from White POV are:
Code: Select all
Games 1-0 =-= 0-1 White perf.
1000 235 574 191 52.2%
http://s000.tinyupload.com/?file_id=844 ... 8794331058
White performance for KID (Sämisch Variation) is 52.2%. It already strikes as not that high compared to 0.35 eval of Stockfish.
Then, to see if I am not doing something wrong with the opening book building, I took 8moves_GM.pgn opening suite of GM games to move 8, and built the same kind of 5-mover book from those 8-move positions. This "book" represents some sort of compilation of typical GM opening positions. Then, the result in Stockfish dev. self-play 1000 games from this representative sample from White POV was:
Code: Select all
Games 1-0 =-= 0-1 White perf.
1000 309 518 173 56.8%
So, KID (Sämisch Variation) seems to be better for Black than an average GM opening according to Stockfish fast self-play, although Stockfish doesn't like it and would not go into it unforced (by its eval).