Test Position: Bronstein vs Keres, Goteborg 1995

[jwes]

As I said in my post, the improvement in the game line is 25. Rh2, which is a few moves past the end of the line you gave. There could be improvements for black before.

[peter]

Hi Anton!

Analysis by ProDeo 1.6Q3:

14.Sd6 Lxd6 15.Dxd6 Dc7 16.Lf4 Dxd6 17.Lxd6 Tfe8 18.Tae1
-/+ (-0.92) Tiefe: 6 00:00:00 24kN
...
14.Lxh6
=/+ (-0.62) Tiefe: 8 00:00:00 1016kN
14.Lxh6 Sc5 15.Le3 Db8 16.Sf5 De5 17.Sxe7+ Dxe7
= (-0.07) Tiefe: 8 00:00:00 1308kN
14.Lxh6 Sc5 15.Lf4 Se6 16.Ld6 Lc6 17.Lxe7 Dxe7 18.Sd6
= (0.00) Tiefe: 9 00:00:01 2219kN
14.Lxh6 gxh6 15.Dd2 Sg4 16.Dd4 Sf6 17.Dd2 Sg4 18.Dd4 Sf6
= (0.00) Tiefe: 10 00:00:02 4404kN
14.Lxh6 Sc5 15.Lg5 Sce4 16.Lxf6 Sxf6 17.Dd4 a6 18.Sd6 Lxd6 19.Dxd6 g6 20.f3
= (0.17) Tiefe: 11 00:00:07 14895kN
14.Lxh6 Sc5 15.Lg5 Sce4 16.Sxe4 Sxe4 17.Lf4 Lf6 18.De2 De7 19.Dxc4 Lxb2 20.Tae1
+/= (0.30) Tiefe: 12 00:00:19 38680kN
14.Lxh6 Sc5 15.Lxg7 Kxg7 16.Te1 Se6 17.Sf5+ Kh8 18.Te3 Lxg2 19.Kxg2 Sf4+ 20.Kh1 Lc5
+/= (0.27) Tiefe: 13 00:00:42 85686kN
14.Lxh6 Sc5 15.Lxg7 Kxg7 16.Te1 Se6 17.Sf5+ Kh8 18.Te3 Lxg2 19.Kxg2 Sf4+ 20.Kh1 Lc5
+/= (0.27) Tiefe: 14 00:01:28 190mN

[perejaslav]

Q6600

r2q1rk1/pb1pbpp1/np3n1p/1N6/2p5/P5N1/1PB2PPP/R1BQ1RK1 w - - 0 1

Analysis by Stockfish 1.7.1 JA 64bit ZD A200:

1.Nf5 Nc5 2.Qe2 Re8 3.Qxc4 Nce4 4.Qb3 d5 5.Bf4 Qd7 6.Nbd4 Bc5 7.Qa4 Qc8 8.b4 Nh5 9.Be3 Bxd4 10.Nxd4 Nc3
(-1.05 ++) 6 00:00:00 3тП
(-0.96 --) 16 00:00:01 5617тП
1.Re1 Re8 2.Nf5 Bc6 3.Qd2 Bc5 4.Nbd6 Rxe1+ 5.Qxe1 Ng4 6.Qc3 Qf6 7.Qxc4 Nxf2 8.Bf4 Qe6
(-0.80 ++) 16 00:00:02 7135тП
(-0.88 --) 17 00:00:04 13172тП
1.Nf5 Nc5 2.Re1 Be4 3.Bxe4 Ncxe4 4.f3 Bc5+ 5.Be3 Bxe3+ 6.Rxe3 Nc5 7.Nbd6 b5 8.Qe1 Nd3 9.Qg3 Nh5 10.Qg4 Qg5 11.Qxg5 hxg5 12.b3 Nhf4 13.bxc4 bxc4 14.Nxc4 Rab8
(-0.48) 17 00:00:04 15847тП
(-0.84) 21 00:00:37 126мП
1.Re1 Bc5 2.Nf5 Re8 3.Rxe8+ Qxe8 4.Bxh6 gxh6 5.Nbd6 Bxd6 6.Qxd6 Ng4 7.Ne7+ Kg7 8.Qd4+ Kf8 9.Qh8+
(-0.36 ++) 21 00:00:49 166мП
(-0.60 --) 23 00:01:25 290мП
1.Bxh6 Re8 2.Bg5 Nc5 3.Nf5 d5 4.Re1 Ne6 5.Bxf6
(-0.44 ++) 23 00:01:53 387мП
(-0.20 ++) 23 00:02:10 445мП
-------------------------
Where A200 stands for Aggressiveness = 200

[yanquis1972]

As I said in my post, the improvement in the game line is 25. Rh2, which is a few moves past the end of the line you gave. There could be improvements for black before.

sorry, i completely misread the post, however i gave that line specifically because it was after that that stockfish seemed to evaluate the position as completely wont for black. after 25. Rh2 i get --


[-1.81] d=25 8...Qg5 9.Bc1 Ng3 10.Kg1 Nf5 11.Nc3 Rf8 12.Rf2 g3 13.Rf4 Bxf4 14.exf4 Qh6 15.Qg2 (0:02:14) 526874kN
[-1.73] d=24 8...Qg5 9.Bc1 Ng3 10.Kg1 Nf5 11.Nc3 Rf8 12.Rf2 g3 13.Rf4 Bxf4 14.exf4 Qh6 15.Qg2 Qg7 16.Qd2 e3 17.Qe2 Qh6 18.Bg2 Qxf4 19.Bh3 Qf2 20.Qxf2 exf2 21.Kg2 Nxd4 22.cxd5 cxd5 23.b4 Rc8 24.Rd3 Nb3 25.Be3 Rf8 26.Kf1 (0:01:56) 458385kN
[-1.97] d=24 8...Qg5 9.c5 Bxh2 10.Qxh2 g3 11.Qh3 Rf8 12.Bg2 Rf2 13.Bc3 Nf6 14.Rf1 Rxf1 (0:01:42) 403677kN
[-1.69] d=23 8...Qg5 9.Bc1 Ng3 10.Kg1 Nf5 11.Nc3 Rf8 12.Rf2 g3 13.Rf4 Bxf4 14.exf4 Qh4 15.Qg2 Qg4 16.Qc2 e3 17.Bd3 Qxf4 18.Bxf5 exf5 19.cxd5 Qh6 20.dxc6 bxc6 21.Qg2 f4 22.Ne4 Bh3 23.Qf3 Rb8 24.Nxg3 Rxb3 25.Qh5 Qxh5 26.Nxh5 (0:01:13) 287681kN
[-1.65] d=22 8...Qg5 9.Bc1 Ng3 10.Kg1 Nf5 11.Nc3 Rf8 12.Rf2 g3 13.Rf4 Bxf4 14.exf4 Qh4 15.Qg2 Qg4 16.Qe2 Qg7 17.Qb2 Be8 18.Bh3 Nxd4 19.Ne2 Nf3 20.Kg2 Nh4 21.Kg1 Rf6 22.Nd4 e5 23.fxe5 Rf2 (0:01:06) 258594kN
[-1.61] d=22 8...Qg5 9.Rg2 Ng3 10.Kg1 Nf5 11.Be2 h5 12.Bc1 Nh4 13.Rf2 g3 14.Rff1 g2 15.Rf4 Qg3 16.Bxh5 Bxf4 17.exf4 Qh3 18.Qe2 Kh7 19.Bg4 Nf3 20.Bxf3 exf3 21.Qd2 dxc4 22.bxc4 Rg8 (0:00:45) 174467kN
[-1.21] d=21 8...Qg5 9.Rf2 Ng3 10.Kg1 Nf5 11.Rxf5 Qxf5 12.Qg2 Qf3 13.Qxf3 exf3 14.Nc3 Rf8 15.cxd5 exd5 16.e4 g3 17.exd5 cxd5 18.Nxd5 Kg7 19.Nc3 Bg4 20.Rb1 h5 21.Bd3 Rc8 (0:00:22) 86489kN
[-1.13] d=20 8...Qg5 9.Rf2 Ng3 10.Kg1 Nf5 11.Rxf5 Qxf5 12.Qg2 g3 13.Be2 Rf8 14.Rf1 Qg5 15.Rxf8 Bxf8 16.Bc1 e5 17.cxd5 cxd5 18.Bd2 Bg7 19.dxe5 Bxe5 20.Kf1 Qf5 21.Ke1 (0:00:15) 60230kN
[-1.17] d=20 8...Qg5 9.Rf2 Ng3 10.Kg1 Nf5 11.Rxf5 Qxf5 12.Qg2 g3 13.Be2 Rf8 14.c5 Qg5 15.cxd6 Qxe3 16.Kh1 Rf2 (0:00:15) 58388kN
[-0.84] d=20 8...Qg5 9.Be2 Bxh2 10.Kxh2 Qh4 11.Kg1 Ng3 12.cxd5 Rf8 (0:00:13) 49618kN
[-0.68] d=20 8...Qg5 9.cxd5 exd5 10.Nc3 Bxh2 11.Qxh2 g3 12.Qe2 Qh4 13.Kg1 Rf8 (0:00:09) 36750kN
[-0.60] d=20 8...Qg5 9.Rg2 Rf8 10.Kg1 Qh4 11.Be2 Ng3 12.Rh2 Nxe2 13.Rxe2 dxc4 14.bxc4 (0:00:06) 22825kN
[-0.52] d=19 8...Qg5 9.Bc1 Rf8 10.Rg2 Qh4 11.Kg1 Rf3 12.Rh2 Bxh2 13.Qxh2 Qg3 14.Qxg3 Nxg3 15.Nc3 Nxf1 16.Rxf1 Kf7 17.Rxf3 exf3 18.Kf2 h5 19.e4 dxc4 20.bxc4 h4 21.Bf4 Kg6 22.Na4 Bc8 23.Nc5 b6 24.Nd3 (0:00:05) 20145kN
[-0.52] d=18 8...Qg5 9.Bc1 Rf8 10.Rg2 Qh4 11.Kg1 Rf3 12.Rh2 Bxh2 13.Qxh2 Qg3 14.Qxg3 Nxg3 15.Nc3 Nxf1 16.Rxf1 Kf7 17.Rxf3 exf3 18.Kf2 h5 19.e4 dxc4 20.bxc4 h4 21.Bf4 Kg6 22.Na4 Bc8 23.Nc5 b6 (0:00:04) 15460kN
[-0.56] d=17 8...Qg5 9.Bc1 Rf8 10.Rg2 Qh4 11.Kg1 Rf3 12.Rh2 Bxh2 13.Qxh2 Qg3 14.Qxg3 Nxg3 15.Nc3 Nxf1 16.Rxf1 Kf7 17.Rxf3 exf3 18.cxd5 exd5 19.Kf2 h5 20.e4 dxe4 21.Nxe4 h4 22.Nd6 Ke6 23.Nxb7 (0:00:03) 11660kN
[-0.76] d=16 8...Qg5 9.Bc1 Rf8 10.Rg2 Qh4 11.Kg1 g3 12.c5 Bc7 13.Qb4 b6 14.Qa4 Bb8 15.Nc3 Rf2 16.cxb6 axb6 17.Qa8 Rf8 18.Be2 (0:00:02) 5538kN
[-0.52] d=15 8...Qg5 9.Bc1 Rf8 10.Rg2 Rf3 11.Kg1 Qh4 12.Rh2 Bxh2 13.Qxh2 Qg3 14.Qxg3 Nxg3 15.Bd2 Kg7 16.Bg2 Ne2 17.Kh2 g3 18.Kh3 e5 19.Kh4 Rf2 (0:00:01) 2545kN
[-0.88] d=14 8...Qg5 9.Rg2 Ng3 10.Kg1 Nf5 11.Be2 g3 12.c5 Bc7 13.Rf1 Qxe3 14.Kh1 Qxd2 15.Nxd2 Ne3 16.Rfg1 Nxg2 17.Kxg2 Kf7 (0:00:00) 529kN
[-0.84] d=14 8...Qg5 9.cxd5 exd5 10.Nc3 Bxh2 11.Qxh2 g3 12.Qe2 Qh4 13.Kg1 Rf8 (0:00:00) 426kN
[-0.68] d=14 8...Qg5 9.Rg2 Ng3 10.Kg1 Nf5 11.Be2 g3 12.c5 Bc7 13.Rf1 Qxe3 14.Qxe3 Nxe3 15.Rf6 Nxg2 16.Kxg2 Rf8 17.Rxf8 Kxf8 (0:00:00) 416kN