Human versus Machine

[Lyudmil Tsvetkov]

Bram, after a5 Bd2 b4, try Kh1:

[d]r2q1rk1/1b2bp1p/4pRp1/p2pP1Pn/1ppP4/P1P1PN1Q/1PBB3P/R6K b - - 0 2

aiming at Rg1-g4-h4

Well that doesn't help
After Qd7 black has a comfortable +1
Btw this is my last contribution I quit my analysing support here


86: New game
[D] r4rk1/1b1qbp1p/4pRp1/p2pP1Pn/1ppP4/P1P1PN1Q/1PBB3P/R6K w - - 0 1

Analysis by Stockfish 020118 64 POPCNT MV depth 44:

1. -/+ (-1.13): 21.Nf3-e1 Bb7-c6 22.a3-a4 Rf8-b8 23.Ne1-g2 Qd7-e8 24.Ng2-f4 Nh5xf4 25.Rf6xf4 Be7xg5 26.Rf4-g4 Bg5-e7 27.Bd2-e1 b4xc3 28.Be1xc3 Rb8-b7 29.Rg4-g2 Be7-f8 30.Qh3-g3 Kg8-h8 31.Qg3-f4 h7-h5 32.Rg2-f2 Bf8-g7 33.Rf2-g2 Ra8-b8 34.Rg2-f2 Kh8-g8 35.Kh1-g1 Qe8-d8 36.Ra1-f1 Rb7-a7 37.Rf1-a1 Kg8-h7 38.Qf4-g3 Qd8-e8 39.Qg3-g5 Kh7-g8 40.Qg5-f4 Kg8-h8 41.Kg1-h1 Qe8-f8 42.Rf2-g2 Rb8-b7 43.Kh1-g1 Qf8-d8 44.Kg1-h1 Qd8-c7 45.Ra1-f1
2. -/+ (-1.13): 21.a3-a4 Bb7-c6 22.Nf3-e1 Rf8-b8 23.Ne1-g2 Qd7-e8 24.Ng2-f4 Nh5xf4 25.Rf6xf4 Be7xg5 26.Rf4-g4 Bg5-e7 27.Bd2-e1 b4xc3 28.Be1xc3 Rb8-b7 29.Rg4-g2 Be7-f8 30.Qh3-g3 Kg8-h8 31.Qg3-f4 h7-h5 32.Rg2-f2 Bf8-g7 33.Rf2-g2 Ra8-b8 34.Rg2-f2 Kh8-g8 35.Kh1-g1 Qe8-d8 36.Ra1-f1 Rb7-a7 37.Rf2-g2 Qd8-e8 38.Rf1-a1 Kg8-h8 39.Qf4-g5 Ra7-b7 40.Kg1-h1 Qe8-e7 41.Qg5-f4 Rb7-a7 42.Kh1-g1 Qe7-d8 43.Kg1-h1 Kh8-h7 44.Qf4-g3 Kh7-g8
3. -/+ (-1.29): 21.Nf3-g1 Bb7-c6 22.a3-a4 Qd7-e8 23.Bc2-d1 Nh5-g7 24.Ng1-e2 Kg8-h8 25.Ne2-f4 Ng7-f5 26.Rf6xf5 e6xf5 27.Qh3-g2 Qe8-d8 28.Bd1-f3 b4xc3 29.Bd2xc3 Be7xg5 30.Nf4xd5 Rf8-e8 31.Nd5-f4 Bc6xf3 32.Qg2xf3 Bg5-h6 33.Qf3-c6 Ra8-a7 34.Ra1-f1 Ra7-c7 35.Qc6-d5 Rc7-d7 36.Qd5xc4 Qd8-a8+ 37.d4-d5 Bh6-g7 38.e3-e4 Bg7xe5 39.e4xf5 Kh8-g8 40.f5xg6 h7xg6 41.Qc4-c6 Rd7-d8 42.Bc3xe5 Re8xe5 43.Qc6xa8 Rd8xa8 44.d5-d6 Kg8-f8 45.Kh1-g2 Kf8-e8

(Bram, 13.01.2018)

You will leave, of course, when you have no reasonable variations.
I don't have time for deeper analysis now, but after Qd7, white can simply play a4:

[d]r4rk1/1b1qbp1p/4pRp1/p2pP1Pn/PppP4/2P1PN1Q/1PBB3P/R6K b - - 0 1

and black can capture the a4 pawn, only if it pushes b4-b3, which will slow down black's counterplay on the queen side by at least 8 tempos.
This means white is simply better, slowly attacking on the king side.
SF is again lost in one of its famous irrelevant lines.

The position is won for white, there is no doubt about that.

[fastgm]

You are searching the wrong lines.
After ba ba Rb8, white plays Ne1 instead of Bc1?, intending Bd1:

It's not me, it's Stockfish

[d]1r1q1rk1/4bp1p/2b1pRp1/p2pP1Pn/2pP4/P1P1P2Q/2BB3P/4N1RK b - - 0 3

7...Qd7 8.Bd1 Ng7 and the attack doesn't seem to break through.

[d]1r3rk1/3qbpnp/2b1pRp1/p2pP1P1/2pP4/P1P1P2Q/3B3P/3BN1RK w - - 5 9
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 20/34	00:01	 17.925k	14.962k	-1,15	9.Qh6 Ba4 10.Bg4 Bxa3 11.Rg3 Rfe8 12.Qh4 Nf5 13.Bxf5 exf5 14.Rh3 h5 15.gxh6 Bd1 16.Rd6 Qe7 17.Qxe7 Rxe7 18.Rxd5 Ra7 19.Nf3 Bxf3+ 20.Rxf3 Kh7 21.Kg2 a4
 21/35	00:02	 39.349k	15.359k	-1,36	9.Qh6 Bxf6 10.exf6 Nf5 11.Qh3 Qd6 12.Nf3 Rb2 13.Bc1 Rf2 14.Rg2 Rf1+ 15.Rg1 Rxg1+ 16.Kxg1 Rb8 17.Qg2 Qf8 18.Bc2 Qe8 19.Ne5 Ba4 20.Bxf5 gxf5 21.h4 Qf8 22.Qf1 h6 23.Qe1 hxg5 24.hxg5 Rb1
 22/37	00:03	 55.990k	17.718k	-1,63	9.Qh6 Bxf6 10.exf6 Nf5 11.Qh3 Qd6 12.Nf3 Qxa3 13.Ne5 Rfc8 14.Nxf7 Qb2 15.Bg4 h5 16.Bxf5 exf5 17.Bc1 Qc2 18.Ne5 Qe4+ 19.Qg2 Qxg2+ 20.Kxg2 Be8 21.Kg3 Rb3 22.Bd2 Rb2 23.Bc1
 23/39	00:03	 81.212k	20.395k	-1,43	9.Qh6 Bxf6 10.gxf6 Nf5 11.Qf4 Kh8 12.Bg4 Rg8 13.Bc1 Rb1 14.Nf3 Qe8 15.Ng5 h6 16.Nh3 Qf8 17.Qf2 a4 18.Nf4 Rb3 19.Qe1 Qa8 20.Bd1 g5 21.Ne2 Nh4 22.Qf1 Qa5 23.Bc2 Rbb8
 24/39	00:04	 99.431k	21.819k	-1,64	9.Qh6 Bxf6 10.gxf6 Nf5 11.Qf4 Kh8 12.Bg4 Rg8 13.Bc1 g5 14.Qf1 Nh6 15.Nf3 Nxg4 16.Rxg4 Ba4 17.Nxg5 Bc2 18.Rg1 h6 19.Qf2 Rxg5 20.Qxc2 Rxg1+ 21.Kxg1 Qb7 22.e4 dxe4 23.Qd2 Rg8+ 24.Kh1 Rg6
 25/43	00:05	 145.680k	24.439k	-0,80	9.Qh6 Bxa3 10.Rg3 Nf5 11.Rxf5 exf5 12.Rh3 f6 13.gxf6 Rfe8 14.Rg3 Bf8 15.Rxg6+ hxg6 16.Qxg6+ Bg7 17.Bh5 Re6 18.Nf3 Rf8 19.Be1 Rexf6 20.exf6 Rxf6 21.Qg2 Qb7 22.Ne5 Qb1 23.Qg3 Qb7 24.Bf3 Ba4 25.Qg2
 26/45	00:09	 267.746k	27.726k	-1,25	9.Qh6 Ba4 10.Bg4 Rfc8 11.Rg3 Bf8 12.Qh4 Rb1 13.Rh3 Nh5 14.Bxh5 gxh5 15.Rhf3 Rc7 16.Rf1 Bd1 17.e4 Be2 18.Rg1 Rcb7 19.Qf4 Bg7 20.h3 R7b2 21.Qe3 Rd1 22.Bc1 Rb1 23.Qxe2 Rdxc1 24.Qe3 dxe4 25.Rf2 Qb7 26.h4 Bf8 27.Rgf1 Bxa3
 27/34	00:10	 286.187k	28.000k	-1,18	9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 dxe4 12.Rg3 Nh5 13.Bxh5 Bf8 14.Bxg6 fxg6 15.Qh4 Rb2 16.Be3 Bg7 17.Qh3 Re8 18.Qf1 Bc6 19.Rf4 Rb1 20.Rg1 Rf8 21.Rxf8+ Bxf8 22.Qxc4 Bd5 23.Qa6 Rb3 24.Qxa5 Rxa3
 28/45	00:16	 483.918k	29.457k	-1,49	9.Qh6 Ba4 10.Bg4 Rfc8 11.Rg3 Bf8 12.Qh4 Rb1 13.Rh3 Nh5 14.Bxh5 gxh5 15.Rhf3 Bc2 16.Rxf7 Be7 17.Rf1 Bg6 18.Ng2 Bxa3 19.R7f2 Rxf1+ 20.Rxf1 Rf8 21.Rf6 Rb8 22.Rf1 a4 23.Nf4 Rf8 24.Qe1 Be7 25.Kg1 Bxg5 26.Qg3
 29/48	00:17	 530.887k	29.530k	-1,42	9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 Bf8 12.Qh4 dxe4 13.Rg3 e3 14.Rxe3 Rb1 15.Rh3 Nh5 16.Rf1 Bc6+ 17.Kg1 Bxa3 18.Bxh5 gxh5 19.Rf4 Qb7 20.Qxh5 Be4 21.Rxe4 Qxe4 22.g6 Rxe1+ 23.Kf2 Qxg6 24.Kxe1 Qxh5 25.Rxh5 a4 26.Kd1 Be7 27.Bg5 Bf8 28.Bc1 a3 29.Rg5+ Kh8 30.Rg2 Be7 31.Bh6 Rg8 32.Rxg8+ Kxg8
 30/62	01:28	 2.625.343k	29.551k	-2,46	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7 14.Be2 f6 15.Bh5 Rb2 16.Bc1 Rb1 17.Nf3 Nxf3 18.Bxf3 Bc2 19.Qg2 Bd3 20.Be2 Bxe2 21.Qxe2 Bh4 22.R3g2 fxe5 23.dxe5 Rb3 24.Qd2 Rf5 25.e4 Rxe5 26.exd5 exd5 27.h3
 31/47	01:35	 2.839.572k	29.581k	-2,39	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7 14.Be2 f6 15.e4 Bxd2 16.Qxh4 Rb1 17.Rf3 Bxe1 18.Rxe1 Rxe1+ 19.Qxe1 fxe5 20.Rxf8+ Qxf8 21.exd5 exd5 22.dxe5 Qf4 23.Qg3 Qxg3 24.hxg3 Kf7 25.Kg2 Ke6 26.Kf3 Kxe5 27.Ke3 Bd7 28.Bf3 Bf5
 32/52	02:18	 4.120.376k	29.674k	-2,69	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 h6 14.Nf3 Nxf3 15.Bxf3 Rb2 16.R3g2 Rfb8 17.Bc1 R2b3 18.Bd2 Rb1 19.Qg3 Rxg1+ 20.Rxg1 Qe7 21.Bc1 Bc2 22.Qg2 Bf5 23.e4 dxe4 24.Bxg5 Qxg5 25.Bxe4 Qxg2+ 26.Bxg2 Rb3 27.Rc1 Rxa3 28.d5
 33/51	02:55	 5.220.257k	29.757k	-2,73	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Bc1 Rb3 14.Rxf5 exf5 15.Bxf5 Qe8 16.e4 Kh8 17.Bg4 dxe4 18.Ng2 Bc6 19.Bd1 Qd7 20.Qxd7 Bxd7 21.Bxb3 cxb3 22.Nf4 Rc8 23.Nd5 Bd8 24.Bb2 Kg7 25.Kg2 Be6 26.Nf6 Bxf6 27.exf6+ Kxf6 28.Kf2 Bd5 29.Ke3 a4 30.Rg4 Ke6 31.Rh4 f5 32.Rxh7 Kd6
 34/54	03:30	 6.273.020k	29.833k	-2,57	9.Rf4 Ba4 10.Bf3 Nf5 11.Qg2 Bxa3 12.e4 dxe4 13.Bxe4 Rb2 14.Rf2 Be7 15.Qf3 Rc8 16.Ng2 Bc6 17.Bxc6 Qxc6 18.Qxc6 Rxc6 19.Ne3 a4 20.Ra1 a3 21.Nd1 Rb3 22.Kg2 Ra6 23.Bc1 Ra8 24.Rc2 Kg7 25.Nf2 Rab8 26.Ne4 Rb1 27.Rxb1 Rxb1 28.Nf6
 35/57	04:42	 8.537.382k	30.219k	-2,89	9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rxf7 Kxf7 13.Qxh7 Bf8 14.Rf1+ Ke7 15.Rf6 R8b6 16.e4 Bc2 17.exd5 Qxd5+ 18.Bf3 Qxf3+ 19.Rxf3 Be4 20.Kg2 R6b2 21.Kg3 Rxd2 22.Rf2 Rxf2 23.Kxf2 Rb3 24.Qh4 Bf5 25.Qg3 Rxa3 26.Qf3 Kf7 27.Ng2 a4 28.Qa8 Rxc3 29.Qxa4 Rc2+ 30.Kf3 Be7 31.Ne3 Rxh2 32.Nxc4
 36/65	08:23	 15.603.654k	30.968k	-2,93	9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 14.Rxf7 Kxf7 15.Kg2 R8b2 16.Nf3 Kg8 17.Qh3 Bd7 18.a4 Rd1 19.Kg3 Rdxd2 20.Nxd2 Rxd2 21.Qf1 Rc2 22.Qe1 Nf5+ 23.Bxf5 gxf5 24.h4 Be8 25.Qb1 Rxc3 26.Qb6 Bd7 27.Kf2 Rc2+ 28.Kf3 Ra2 29.Qxa5 Bxa4 30.Qc7 Bd1+ 31.Kg3
 37/59	13:53	 26.110.609k	31.318k	-3,13	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5 14.Bxf5 Qb7 15.Nf3 Kh8 16.Qh6 Rg8 17.Bh3 Bc2 18.Bg2 Be4 19.Ng5 Bxg5 20.Qxg5 Qb1 21.Qf6+ Rg7 22.Rf1 h5 23.Qf4 Bxg2+ 24.Kxg2 Qd3 25.Rf2 Rb2 26.e4 dxe4 27.h4 Ra2 28.a4 Ra1 29.Kh2 Kg8 30.Qg5 Qb1 31.Qg2 Kh7 32.Rf4 Ra2 33.Rf2 Rxa4 34.d5 Qd3 35.Qg5 Qxd5 36.Be3 f5 37.exf6 Qxg5 38.hxg5 Rf7
 38/64	16:20	 30.816.921k	31.430k	-3,15	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rf2 Rb2 14.Rgf1 Qe7 15.Kg1 Kg7 16.Qg3 h6 17.Nf3 Nxf3+ 18.Qxf3 Bh4 19.Qf6+ Qxf6 20.exf6+ Kh7 21.Re2 Bg5 22.Kg2 Bc2 23.Bc1 Be4+ 24.Kg3 Rb1 25.h4 Bxf6 26.Rxf6 Rxc1 27.Bxe6 Rxc3 28.Ref2 Rxe3+ 29.Kf4 Re1 30.Kg3 Rg1+ 31.Kf4 Rh1 32.Ke5
 39/64	16:29	 31.119.524k	31.435k	-3,07	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rf2 Rb2 14.Rgf1 Qe7 15.Kg1 Kg7 16.Qg3 h6 17.Bc1 Rb3 18.Nf3 Nxf3+ 19.Rxf3 Rxc3 20.Qe1 Rd3 21.Rf6 Kg8 22.Qxa5 Bc6 23.R6f3 Ra8 24.Qe1 Be8 25.Bh3 h5 26.Qe2 Rb8 27.Kh1 Rbb3 28.Qe1 Rb1 29.Qf2 Kh7 30.Bg2 Qb7 31.a4 Ra1 32.a5 Rxa5 33.Kg1
 40/54	16:40	 31.468.961k	31.444k	-2,87	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rf2 Rb2 14.Rgf1 Qe7 15.Kg1 Kg7 16.Qg3 h6 17.Bc1 Rb3 18.Nf3 Nxf3+ 19.Rxf3 Rxc3 20.Qe1 Rd3 21.Rf6 Kg8 22.Qxa5 Bc6 23.R6f3 Ra8 24.Qb6 Be8 25.Qb1 Bh4 26.Bh3 h5 27.Bg2 Qd8 28.Qa1 Qg5 29.e4 Qg4 30.Rxd3 cxd3 31.exd5 exd5
 41/68	24:26	 46.433.264k	31.659k	-3,18	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5 14.Bxf5 Qb7 15.Nf3 Kh8 16.Qh6 Rg8 17.Bh3 Bc2 18.Ng5 Bxg5 19.Qxg5 Be4+ 20.Bg2 Qb1 21.Qf6+ Rg7 22.Rf1 h5 23.Qf4 Bxg2+ 24.Kxg2 Qd3 25.Rf2 Rb2 26.e4 dxe4 27.Qe3 Kg8 28.Qxd3 exd3 29.a4 f5 30.e6 Rb6 31.d5 Rd6 32.Bh6 Rxd5 33.Bxg7
 42/62	32:44	 62.326.031k	31.728k	-3,31	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5 14.Bxf5 Qb7 15.Qh6 Kh8 16.Nf3 Rg8 17.Bh3 Bc2 18.Ng5 Bxg5 19.Qxg5 Be4+ 20.Bg2 Qb1 21.Qf6+ Rg7 22.Rf1 h5 23.Qf4 Bxg2+ 24.Kxg2 Qd3 25.Rf2 Rb2 26.e4 dxe4 27.Qe3 Kg8 28.Qxd3 exd3 29.Bh6 Rb3 30.d5 Rb5 31.e6 fxe6 32.Bxg7 Kxg7 33.dxe6 Rg5+ 34.Kf1
 43/85	1:01:40	118.195.797k	31.941k	-3,36	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 h6 14.Nf3 Nxf3 15.Bxf3 Rb2 16.R3g2 Rfb8 17.Bc1 R2b3 18.Bd2 Rxa3 19.Rxg5 hxg5 20.e4 g4 21.Rxg4 Ra2 22.Qh6 Rxd2 23.Qxd2 dxe4 24.Be2 e3 25.Qxe3 Rb1+ 26.Kg2 Bd1 27.Kg3 Bxe2 28.Qxe2 Qd5 29.Kf4 Qh1 30.Kg5 Qc1+ 31.Kf6 Qh6 32.Qe4 Qf8 33.Kg5 Qd8+ 34.Kf4 Rb3 35.Qe1 a4 36.Rg2 Qa5 37.Rc2 a3 38.Rc1 a2 39.h3 g5+ 40.Ke3

.

[Lyudmil Tsvetkov]

You are searching the wrong lines.
After ba ba Rb8, white plays Ne1 instead of Bc1?, intending Bd1:

It's not me, it's Stockfish

[d]1r1q1rk1/4bp1p/2b1pRp1/p2pP1Pn/2pP4/P1P1P2Q/2BB3P/4N1RK b - - 0 3

7...Qd7 8.Bd1 Ng7 and the attack doesn't seem to break through.

[d]1r3rk1/3qbpnp/2b1pRp1/p2pP1P1/2pP4/P1P1P2Q/3B3P/3BN1RK w - - 5 9
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 20/34	00:01	 17.925k	14.962k	-1,15	9.Qh6 Ba4 10.Bg4 Bxa3 11.Rg3 Rfe8 12.Qh4 Nf5 13.Bxf5 exf5 14.Rh3 h5 15.gxh6 Bd1 16.Rd6 Qe7 17.Qxe7 Rxe7 18.Rxd5 Ra7 19.Nf3 Bxf3+ 20.Rxf3 Kh7 21.Kg2 a4
 21/35	00:02	 39.349k	15.359k	-1,36	9.Qh6 Bxf6 10.exf6 Nf5 11.Qh3 Qd6 12.Nf3 Rb2 13.Bc1 Rf2 14.Rg2 Rf1+ 15.Rg1 Rxg1+ 16.Kxg1 Rb8 17.Qg2 Qf8 18.Bc2 Qe8 19.Ne5 Ba4 20.Bxf5 gxf5 21.h4 Qf8 22.Qf1 h6 23.Qe1 hxg5 24.hxg5 Rb1
 22/37	00:03	 55.990k	17.718k	-1,63	9.Qh6 Bxf6 10.exf6 Nf5 11.Qh3 Qd6 12.Nf3 Qxa3 13.Ne5 Rfc8 14.Nxf7 Qb2 15.Bg4 h5 16.Bxf5 exf5 17.Bc1 Qc2 18.Ne5 Qe4+ 19.Qg2 Qxg2+ 20.Kxg2 Be8 21.Kg3 Rb3 22.Bd2 Rb2 23.Bc1
 23/39	00:03	 81.212k	20.395k	-1,43	9.Qh6 Bxf6 10.gxf6 Nf5 11.Qf4 Kh8 12.Bg4 Rg8 13.Bc1 Rb1 14.Nf3 Qe8 15.Ng5 h6 16.Nh3 Qf8 17.Qf2 a4 18.Nf4 Rb3 19.Qe1 Qa8 20.Bd1 g5 21.Ne2 Nh4 22.Qf1 Qa5 23.Bc2 Rbb8
 24/39	00:04	 99.431k	21.819k	-1,64	9.Qh6 Bxf6 10.gxf6 Nf5 11.Qf4 Kh8 12.Bg4 Rg8 13.Bc1 g5 14.Qf1 Nh6 15.Nf3 Nxg4 16.Rxg4 Ba4 17.Nxg5 Bc2 18.Rg1 h6 19.Qf2 Rxg5 20.Qxc2 Rxg1+ 21.Kxg1 Qb7 22.e4 dxe4 23.Qd2 Rg8+ 24.Kh1 Rg6
 25/43	00:05	 145.680k	24.439k	-0,80	9.Qh6 Bxa3 10.Rg3 Nf5 11.Rxf5 exf5 12.Rh3 f6 13.gxf6 Rfe8 14.Rg3 Bf8 15.Rxg6+ hxg6 16.Qxg6+ Bg7 17.Bh5 Re6 18.Nf3 Rf8 19.Be1 Rexf6 20.exf6 Rxf6 21.Qg2 Qb7 22.Ne5 Qb1 23.Qg3 Qb7 24.Bf3 Ba4 25.Qg2
 26/45	00:09	 267.746k	27.726k	-1,25	9.Qh6 Ba4 10.Bg4 Rfc8 11.Rg3 Bf8 12.Qh4 Rb1 13.Rh3 Nh5 14.Bxh5 gxh5 15.Rhf3 Rc7 16.Rf1 Bd1 17.e4 Be2 18.Rg1 Rcb7 19.Qf4 Bg7 20.h3 R7b2 21.Qe3 Rd1 22.Bc1 Rb1 23.Qxe2 Rdxc1 24.Qe3 dxe4 25.Rf2 Qb7 26.h4 Bf8 27.Rgf1 Bxa3
 27/34	00:10	 286.187k	28.000k	-1,18	9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 dxe4 12.Rg3 Nh5 13.Bxh5 Bf8 14.Bxg6 fxg6 15.Qh4 Rb2 16.Be3 Bg7 17.Qh3 Re8 18.Qf1 Bc6 19.Rf4 Rb1 20.Rg1 Rf8 21.Rxf8+ Bxf8 22.Qxc4 Bd5 23.Qa6 Rb3 24.Qxa5 Rxa3
 28/45	00:16	 483.918k	29.457k	-1,49	9.Qh6 Ba4 10.Bg4 Rfc8 11.Rg3 Bf8 12.Qh4 Rb1 13.Rh3 Nh5 14.Bxh5 gxh5 15.Rhf3 Bc2 16.Rxf7 Be7 17.Rf1 Bg6 18.Ng2 Bxa3 19.R7f2 Rxf1+ 20.Rxf1 Rf8 21.Rf6 Rb8 22.Rf1 a4 23.Nf4 Rf8 24.Qe1 Be7 25.Kg1 Bxg5 26.Qg3
 29/48	00:17	 530.887k	29.530k	-1,42	9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 Bf8 12.Qh4 dxe4 13.Rg3 e3 14.Rxe3 Rb1 15.Rh3 Nh5 16.Rf1 Bc6+ 17.Kg1 Bxa3 18.Bxh5 gxh5 19.Rf4 Qb7 20.Qxh5 Be4 21.Rxe4 Qxe4 22.g6 Rxe1+ 23.Kf2 Qxg6 24.Kxe1 Qxh5 25.Rxh5 a4 26.Kd1 Be7 27.Bg5 Bf8 28.Bc1 a3 29.Rg5+ Kh8 30.Rg2 Be7 31.Bh6 Rg8 32.Rxg8+ Kxg8
 30/62	01:28	 2.625.343k	29.551k	-2,46	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7 14.Be2 f6 15.Bh5 Rb2 16.Bc1 Rb1 17.Nf3 Nxf3 18.Bxf3 Bc2 19.Qg2 Bd3 20.Be2 Bxe2 21.Qxe2 Bh4 22.R3g2 fxe5 23.dxe5 Rb3 24.Qd2 Rf5 25.e4 Rxe5 26.exd5 exd5 27.h3
 31/47	01:35	 2.839.572k	29.581k	-2,39	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7 14.Be2 f6 15.e4 Bxd2 16.Qxh4 Rb1 17.Rf3 Bxe1 18.Rxe1 Rxe1+ 19.Qxe1 fxe5 20.Rxf8+ Qxf8 21.exd5 exd5 22.dxe5 Qf4 23.Qg3 Qxg3 24.hxg3 Kf7 25.Kg2 Ke6 26.Kf3 Kxe5 27.Ke3 Bd7 28.Bf3 Bf5
 32/52	02:18	 4.120.376k	29.674k	-2,69	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 h6 14.Nf3 Nxf3 15.Bxf3 Rb2 16.R3g2 Rfb8 17.Bc1 R2b3 18.Bd2 Rb1 19.Qg3 Rxg1+ 20.Rxg1 Qe7 21.Bc1 Bc2 22.Qg2 Bf5 23.e4 dxe4 24.Bxg5 Qxg5 25.Bxe4 Qxg2+ 26.Bxg2 Rb3 27.Rc1 Rxa3 28.d5
 33/51	02:55	 5.220.257k	29.757k	-2,73	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Bc1 Rb3 14.Rxf5 exf5 15.Bxf5 Qe8 16.e4 Kh8 17.Bg4 dxe4 18.Ng2 Bc6 19.Bd1 Qd7 20.Qxd7 Bxd7 21.Bxb3 cxb3 22.Nf4 Rc8 23.Nd5 Bd8 24.Bb2 Kg7 25.Kg2 Be6 26.Nf6 Bxf6 27.exf6+ Kxf6 28.Kf2 Bd5 29.Ke3 a4 30.Rg4 Ke6 31.Rh4 f5 32.Rxh7 Kd6
 34/54	03:30	 6.273.020k	29.833k	-2,57	9.Rf4 Ba4 10.Bf3 Nf5 11.Qg2 Bxa3 12.e4 dxe4 13.Bxe4 Rb2 14.Rf2 Be7 15.Qf3 Rc8 16.Ng2 Bc6 17.Bxc6 Qxc6 18.Qxc6 Rxc6 19.Ne3 a4 20.Ra1 a3 21.Nd1 Rb3 22.Kg2 Ra6 23.Bc1 Ra8 24.Rc2 Kg7 25.Nf2 Rab8 26.Ne4 Rb1 27.Rxb1 Rxb1 28.Nf6
 35/57	04:42	 8.537.382k	30.219k	-2,89	9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rxf7 Kxf7 13.Qxh7 Bf8 14.Rf1+ Ke7 15.Rf6 R8b6 16.e4 Bc2 17.exd5 Qxd5+ 18.Bf3 Qxf3+ 19.Rxf3 Be4 20.Kg2 R6b2 21.Kg3 Rxd2 22.Rf2 Rxf2 23.Kxf2 Rb3 24.Qh4 Bf5 25.Qg3 Rxa3 26.Qf3 Kf7 27.Ng2 a4 28.Qa8 Rxc3 29.Qxa4 Rc2+ 30.Kf3 Be7 31.Ne3 Rxh2 32.Nxc4
 36/65	08:23	 15.603.654k	30.968k	-2,93	9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 14.Rxf7 Kxf7 15.Kg2 R8b2 16.Nf3 Kg8 17.Qh3 Bd7 18.a4 Rd1 19.Kg3 Rdxd2 20.Nxd2 Rxd2 21.Qf1 Rc2 22.Qe1 Nf5+ 23.Bxf5 gxf5 24.h4 Be8 25.Qb1 Rxc3 26.Qb6 Bd7 27.Kf2 Rc2+ 28.Kf3 Ra2 29.Qxa5 Bxa4 30.Qc7 Bd1+ 31.Kg3
 37/59	13:53	 26.110.609k	31.318k	-3,13	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5 14.Bxf5 Qb7 15.Nf3 Kh8 16.Qh6 Rg8 17.Bh3 Bc2 18.Bg2 Be4 19.Ng5 Bxg5 20.Qxg5 Qb1 21.Qf6+ Rg7 22.Rf1 h5 23.Qf4 Bxg2+ 24.Kxg2 Qd3 25.Rf2 Rb2 26.e4 dxe4 27.h4 Ra2 28.a4 Ra1 29.Kh2 Kg8 30.Qg5 Qb1 31.Qg2 Kh7 32.Rf4 Ra2 33.Rf2 Rxa4 34.d5 Qd3 35.Qg5 Qxd5 36.Be3 f5 37.exf6 Qxg5 38.hxg5 Rf7
 38/64	16:20	 30.816.921k	31.430k	-3,15	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rf2 Rb2 14.Rgf1 Qe7 15.Kg1 Kg7 16.Qg3 h6 17.Nf3 Nxf3+ 18.Qxf3 Bh4 19.Qf6+ Qxf6 20.exf6+ Kh7 21.Re2 Bg5 22.Kg2 Bc2 23.Bc1 Be4+ 24.Kg3 Rb1 25.h4 Bxf6 26.Rxf6 Rxc1 27.Bxe6 Rxc3 28.Ref2 Rxe3+ 29.Kf4 Re1 30.Kg3 Rg1+ 31.Kf4 Rh1 32.Ke5
 39/64	16:29	 31.119.524k	31.435k	-3,07	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rf2 Rb2 14.Rgf1 Qe7 15.Kg1 Kg7 16.Qg3 h6 17.Bc1 Rb3 18.Nf3 Nxf3+ 19.Rxf3 Rxc3 20.Qe1 Rd3 21.Rf6 Kg8 22.Qxa5 Bc6 23.R6f3 Ra8 24.Qe1 Be8 25.Bh3 h5 26.Qe2 Rb8 27.Kh1 Rbb3 28.Qe1 Rb1 29.Qf2 Kh7 30.Bg2 Qb7 31.a4 Ra1 32.a5 Rxa5 33.Kg1
 40/54	16:40	 31.468.961k	31.444k	-2,87	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rf2 Rb2 14.Rgf1 Qe7 15.Kg1 Kg7 16.Qg3 h6 17.Bc1 Rb3 18.Nf3 Nxf3+ 19.Rxf3 Rxc3 20.Qe1 Rd3 21.Rf6 Kg8 22.Qxa5 Bc6 23.R6f3 Ra8 24.Qb6 Be8 25.Qb1 Bh4 26.Bh3 h5 27.Bg2 Qd8 28.Qa1 Qg5 29.e4 Qg4 30.Rxd3 cxd3 31.exd5 exd5
 41/68	24:26	 46.433.264k	31.659k	-3,18	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5 14.Bxf5 Qb7 15.Nf3 Kh8 16.Qh6 Rg8 17.Bh3 Bc2 18.Ng5 Bxg5 19.Qxg5 Be4+ 20.Bg2 Qb1 21.Qf6+ Rg7 22.Rf1 h5 23.Qf4 Bxg2+ 24.Kxg2 Qd3 25.Rf2 Rb2 26.e4 dxe4 27.Qe3 Kg8 28.Qxd3 exd3 29.a4 f5 30.e6 Rb6 31.d5 Rd6 32.Bh6 Rxd5 33.Bxg7
 42/62	32:44	 62.326.031k	31.728k	-3,31	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5 14.Bxf5 Qb7 15.Qh6 Kh8 16.Nf3 Rg8 17.Bh3 Bc2 18.Ng5 Bxg5 19.Qxg5 Be4+ 20.Bg2 Qb1 21.Qf6+ Rg7 22.Rf1 h5 23.Qf4 Bxg2+ 24.Kxg2 Qd3 25.Rf2 Rb2 26.e4 dxe4 27.Qe3 Kg8 28.Qxd3 exd3 29.Bh6 Rb3 30.d5 Rb5 31.e6 fxe6 32.Bxg7 Kxg7 33.dxe6 Rg5+ 34.Kf1
 43/85	1:01:40	118.195.797k	31.941k	-3,36	9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 h6 14.Nf3 Nxf3 15.Bxf3 Rb2 16.R3g2 Rfb8 17.Bc1 R2b3 18.Bd2 Rxa3 19.Rxg5 hxg5 20.e4 g4 21.Rxg4 Ra2 22.Qh6 Rxd2 23.Qxd2 dxe4 24.Be2 e3 25.Qxe3 Rb1+ 26.Kg2 Bd1 27.Kg3 Bxe2 28.Qxe2 Qd5 29.Kf4 Qh1 30.Kg5 Qc1+ 31.Kf6 Qh6 32.Qe4 Qf8 33.Kg5 Qd8+ 34.Kf4 Rb3 35.Qe1 a4 36.Rg2 Qa5 37.Rc2 a3 38.Rc1 a2 39.h3 g5+ 40.Ke3

.

I don't know, but either you or SF exhibits some failures.
Any reason why you suddenly started analysing the Rf4 lines before the Qh6 one was fully analysed?
I would suggest you search a bit deeper the Qh6 Ba4 Bg4 Rfc8 Rg3 line(which is the obvious move instead of e4):
[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3

[fastgm]

I don't know, but either you or SF exhibits some failures.
Any reason why you suddenly started analysing the Rf4 lines before the Qh6 one was fully analysed?

Lyudmil, it's not a Multi PV Mode analysis but a best move analysis. Stockfish simply changed his mind between Qh6 and Rf4 with increasing depth.

Code: Select all

Depth 29: 29/48   00:17       530.887k   29.530k   -1,42   9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 Bf8 12.Qh4 dxe4 13.Rg3 e3
Depth 30: 30/62   01:28     2.625.343k   29.551k   -2,46   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7
Depth 36: 36/65   08:23    15.603.654k   30.968k   -2,93   9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7
Depth 37: 37/59   13:53    26.110.609k   31.318k   -3,13   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5
etc.

This is the "best move infinite analysis" after 9.Qh6 Ba4 10.Bg4:

[d]1r3rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/4N1RK b - - 8 10
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

44/83	32:52	 65.296.993k	33.106k	+4,00	10. ... Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 14.Rxf7 Kxf7 15.Kg2 R8b2 16.Nf3 Kg8 17.Qh3 Bd7 18.a4 Rd1 19.Kg3 Nf5+ 20.Kf2 Rbxd2+ 21.Nxd2 Rxd2+ 22.Kf1 Rc2 23.Qf3 Rxc3 24.Bxf5 gxf5 25.Qh5 Rc1+ 26.Kg2 c3 27.g6 hxg6 28.Qxg6+ Bg7 29.Qg5 c2 30.Qd8+ Kh7 31.Qxd7 Rg1+ 32.Kxg1 c1Q+ 33.Kg2 Qxe3 34.Qxe6 Qe2+ 35.Kg1 Qe1+ 36.Kg2 Qe4+ 37.Kf1 Qh1+ 38.Kf2 Qxh2+ 39.Kf3 Qh3+ 40.Kf2 Qh4+ 41.Kf1 Qh1+ 42.Ke2 Qe4+ 43.Kf1 f4 44.Qh3+ Kg6 45.Qe6+ Kg5 46.Qe7+ Kh6 47.Qh4+ Kg6

and a "Multi PV Mode analysis" 5 moves after 10...Rb1:

[d]5rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/1r2N1RK w - - 9 11
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 36/66	36:31	 74.304.702k	33.898k	-5,16	11.e4 Bxa3 12.Ng2 Rfb8 13.Ne3 dxe4 14.Qh3 Bc6 15.Rff1 Rxf1 16.Qxf1 Nf5 17.Bxf5 exf5 18.h4 a4 19.Kh2 Be7 20.Nxc4 a3 21.Bf4 Rb3 22.Qc1 Qe6 23.Ne3 Rb2+ 24.Kg3 Qb3 25.Qd1 Qxc3 26.Qc1 Qxc1 27.Rxc1 a2 28.Ra1 Bb4 29.d5 Ba4
 36/55	36:31	 74.304.702k	33.898k	-5,15	11.Qh3 Bxa3 12.Kg2 Bd1 13.Bxd1 Rxd1 14.Rf2 Nf5 15.Nf3 Rxg1+ 16.Kxg1 a4 17.Qf1 Be7 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qf1 Rxf1+ 26.Kxf1 Ra1+ 27.Kf2 Ra2+ 28.Ke1 Bd8 29.Bd2 Ba5 30.Ng1 Ra1+ 31.Kf2 Kf8 32.Ne2 Rd1 33.Bc1 Rd3 34.h4 Bxc3 35.Nxc3
 36/63	36:31	 74.304.702k	33.898k	-5,14	11.Rg3 Bc2 12.Rh3 Nh5 13.Bxh5 gxh5 14.Qxh5 Bxf6 15.gxf6 Be4+ 16.Kg1 Kh8 17.Rg3 Qe8 18.Kf2 Rg8 19.Nf3 Rxg3 20.hxg3 Bxf3 21.Qxf3 Rb2 22.Ke1 Qg8 23.e4 dxe4 24.Qf4 Qg6 25.g4 e3 26.Qxe3 Qxg4 27.Qg5 Rb1+ 28.Kf2 Qxg5 29.Bxg5 Rb3 30.a4 Rxc3 31.Ke2 Ra3 32.Bh6 Kg8 33.Kd2 Rh3 34.Bg5 Rd3+ 35.Ke2 Rxd4 36.Bd2 Re4+ 37.Kf3 Rxe5 38.Bc3 Rf5+ 39.Ke4 h5 40.Kd4 Rf4+ 41.Kc5
 36/57	36:31	 74.304.702k	33.898k	-5,12	11.Rgf1 Bxa3 12.Qh3 Be7 13.Kg1 Bd1 14.Bxd1 Rxd1 15.R6f2 Nf5 16.Nf3 Rxf1+ 17.Qxf1 a4 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qxa1 Rxa1+ 26.Kf2 Ra2+ 27.Ke1 Bd8 28.Bd2 Ba5 29.Ng1 Ra1+ 30.Kf2 Kf8 31.h3 Ke7 32.h4 Kd7 33.Ne2 Rh1 34.Ke3 Rxh4 35.Be1 Rh3+ 36.Bg3
 36/60	36:31	 74.304.702k	33.898k	-4,33	11.Rf3 Rfb8 12.e4 Bf8 13.Qh4 Bd1 14.Rh3 Nh5 15.Ng2 Bxg4 16.Qxg4 Rxg1+ 17.Kxg1 Rb1+ 18.Kf2 Rb2 19.Ke1 Bxa3 20.Ne3 Be7 21.exd5 a4 22.dxe6 fxe6 23.Nxc4 a3 24.Nxa3 Bxa3 25.Re3 Bf8 26.Qf3 Qa4 27.Re2 Be7 28.h4 Qa1+ 29.Kf2 Qd1 30.Be1 Rb8 31.Rd2 Qb1 32.Rd1 Qb5 33.Kg1 Rf8 34.Qg2 Nf4 35.Qg4 Rf5 36.Kh2 Qb2+ 37.Rd2 Qxc3 38.Qg3 Qc4 39.Rf2 Qxd4 40.Bc3 Qd1

.

[Lyudmil Tsvetkov]

I don't know, but either you or SF exhibits some failures.
Any reason why you suddenly started analysing the Rf4 lines before the Qh6 one was fully analysed?

Lyudmil, it's not a Multi PV Mode analysis but a best move analysis. Stockfish simply changed his mind between Qh6 and Rf4 with increasing depth.

Code: Select all

Depth 29: 29/48   00:17       530.887k   29.530k   -1,42   9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 Bf8 12.Qh4 dxe4 13.Rg3 e3
Depth 30: 30/62   01:28     2.625.343k   29.551k   -2,46   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7
Depth 36: 36/65   08:23    15.603.654k   30.968k   -2,93   9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7
Depth 37: 37/59   13:53    26.110.609k   31.318k   -3,13   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5
etc.

This is the "best move infinite analysis" after 9.Qh6 Ba4 10.Bg4:

[d]1r3rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/4N1RK b - - 8 10
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

44/83	32:52	 65.296.993k	33.106k	+4,00	10. ... Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 14.Rxf7 Kxf7 15.Kg2 R8b2 16.Nf3 Kg8 17.Qh3 Bd7 18.a4 Rd1 19.Kg3 Nf5+ 20.Kf2 Rbxd2+ 21.Nxd2 Rxd2+ 22.Kf1 Rc2 23.Qf3 Rxc3 24.Bxf5 gxf5 25.Qh5 Rc1+ 26.Kg2 c3 27.g6 hxg6 28.Qxg6+ Bg7 29.Qg5 c2 30.Qd8+ Kh7 31.Qxd7 Rg1+ 32.Kxg1 c1Q+ 33.Kg2 Qxe3 34.Qxe6 Qe2+ 35.Kg1 Qe1+ 36.Kg2 Qe4+ 37.Kf1 Qh1+ 38.Kf2 Qxh2+ 39.Kf3 Qh3+ 40.Kf2 Qh4+ 41.Kf1 Qh1+ 42.Ke2 Qe4+ 43.Kf1 f4 44.Qh3+ Kg6 45.Qe6+ Kg5 46.Qe7+ Kh6 47.Qh4+ Kg6

and a "Multi PV Mode analysis" 5 moves after 10...Rb1:

[d]5rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/1r2N1RK w - - 9 11
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 36/66	36:31	 74.304.702k	33.898k	-5,16	11.e4 Bxa3 12.Ng2 Rfb8 13.Ne3 dxe4 14.Qh3 Bc6 15.Rff1 Rxf1 16.Qxf1 Nf5 17.Bxf5 exf5 18.h4 a4 19.Kh2 Be7 20.Nxc4 a3 21.Bf4 Rb3 22.Qc1 Qe6 23.Ne3 Rb2+ 24.Kg3 Qb3 25.Qd1 Qxc3 26.Qc1 Qxc1 27.Rxc1 a2 28.Ra1 Bb4 29.d5 Ba4
 36/55	36:31	 74.304.702k	33.898k	-5,15	11.Qh3 Bxa3 12.Kg2 Bd1 13.Bxd1 Rxd1 14.Rf2 Nf5 15.Nf3 Rxg1+ 16.Kxg1 a4 17.Qf1 Be7 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qf1 Rxf1+ 26.Kxf1 Ra1+ 27.Kf2 Ra2+ 28.Ke1 Bd8 29.Bd2 Ba5 30.Ng1 Ra1+ 31.Kf2 Kf8 32.Ne2 Rd1 33.Bc1 Rd3 34.h4 Bxc3 35.Nxc3
 36/63	36:31	 74.304.702k	33.898k	-5,14	11.Rg3 Bc2 12.Rh3 Nh5 13.Bxh5 gxh5 14.Qxh5 Bxf6 15.gxf6 Be4+ 16.Kg1 Kh8 17.Rg3 Qe8 18.Kf2 Rg8 19.Nf3 Rxg3 20.hxg3 Bxf3 21.Qxf3 Rb2 22.Ke1 Qg8 23.e4 dxe4 24.Qf4 Qg6 25.g4 e3 26.Qxe3 Qxg4 27.Qg5 Rb1+ 28.Kf2 Qxg5 29.Bxg5 Rb3 30.a4 Rxc3 31.Ke2 Ra3 32.Bh6 Kg8 33.Kd2 Rh3 34.Bg5 Rd3+ 35.Ke2 Rxd4 36.Bd2 Re4+ 37.Kf3 Rxe5 38.Bc3 Rf5+ 39.Ke4 h5 40.Kd4 Rf4+ 41.Kc5
 36/57	36:31	 74.304.702k	33.898k	-5,12	11.Rgf1 Bxa3 12.Qh3 Be7 13.Kg1 Bd1 14.Bxd1 Rxd1 15.R6f2 Nf5 16.Nf3 Rxf1+ 17.Qxf1 a4 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qxa1 Rxa1+ 26.Kf2 Ra2+ 27.Ke1 Bd8 28.Bd2 Ba5 29.Ng1 Ra1+ 30.Kf2 Kf8 31.h3 Ke7 32.h4 Kd7 33.Ne2 Rh1 34.Ke3 Rxh4 35.Be1 Rh3+ 36.Bg3
 36/60	36:31	 74.304.702k	33.898k	-4,33	11.Rf3 Rfb8 12.e4 Bf8 13.Qh4 Bd1 14.Rh3 Nh5 15.Ng2 Bxg4 16.Qxg4 Rxg1+ 17.Kxg1 Rb1+ 18.Kf2 Rb2 19.Ke1 Bxa3 20.Ne3 Be7 21.exd5 a4 22.dxe6 fxe6 23.Nxc4 a3 24.Nxa3 Bxa3 25.Re3 Bf8 26.Qf3 Qa4 27.Re2 Be7 28.h4 Qa1+ 29.Kf2 Qd1 30.Be1 Rb8 31.Rd2 Qb1 32.Rd1 Qb5 33.Kg1 Rf8 34.Qg2 Nf4 35.Qg4 Rf5 36.Kh2 Qb2+ 37.Rd2 Qxc3 38.Qg3 Qc4 39.Rf2 Qxd4 40.Bc3 Qd1

.

I don't know what you are analysing.
The real position is this one:

[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3

And the rook is ALREADY on g3.
If you are certain black is losing that, you might simply acknowledge it, then we might analyse something else.

[MikeGL]

I don't know, but either you or SF exhibits some failures.
Any reason why you suddenly started analysing the Rf4 lines before the Qh6 one was fully analysed?

Lyudmil, it's not a Multi PV Mode analysis but a best move analysis. Stockfish simply changed his mind between Qh6 and Rf4 with increasing depth.

Code: Select all

Depth 29: 29/48   00:17       530.887k   29.530k   -1,42   9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 Bf8 12.Qh4 dxe4 13.Rg3 e3
Depth 30: 30/62   01:28     2.625.343k   29.551k   -2,46   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7
Depth 36: 36/65   08:23    15.603.654k   30.968k   -2,93   9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7
Depth 37: 37/59   13:53    26.110.609k   31.318k   -3,13   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5
etc.

This is the "best move infinite analysis" after 9.Qh6 Ba4 10.Bg4:

[d]1r3rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/4N1RK b - - 8 10
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

44/83	32:52	 65.296.993k	33.106k	+4,00	10. ... Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 14.Rxf7 Kxf7 15.Kg2 R8b2 16.Nf3 Kg8 17.Qh3 Bd7 18.a4 Rd1 19.Kg3 Nf5+ 20.Kf2 Rbxd2+ 21.Nxd2 Rxd2+ 22.Kf1 Rc2 23.Qf3 Rxc3 24.Bxf5 gxf5 25.Qh5 Rc1+ 26.Kg2 c3 27.g6 hxg6 28.Qxg6+ Bg7 29.Qg5 c2 30.Qd8+ Kh7 31.Qxd7 Rg1+ 32.Kxg1 c1Q+ 33.Kg2 Qxe3 34.Qxe6 Qe2+ 35.Kg1 Qe1+ 36.Kg2 Qe4+ 37.Kf1 Qh1+ 38.Kf2 Qxh2+ 39.Kf3 Qh3+ 40.Kf2 Qh4+ 41.Kf1 Qh1+ 42.Ke2 Qe4+ 43.Kf1 f4 44.Qh3+ Kg6 45.Qe6+ Kg5 46.Qe7+ Kh6 47.Qh4+ Kg6

and a "Multi PV Mode analysis" 5 moves after 10...Rb1:

[d]5rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/1r2N1RK w - - 9 11
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 36/66	36:31	 74.304.702k	33.898k	-5,16	11.e4 Bxa3 12.Ng2 Rfb8 13.Ne3 dxe4 14.Qh3 Bc6 15.Rff1 Rxf1 16.Qxf1 Nf5 17.Bxf5 exf5 18.h4 a4 19.Kh2 Be7 20.Nxc4 a3 21.Bf4 Rb3 22.Qc1 Qe6 23.Ne3 Rb2+ 24.Kg3 Qb3 25.Qd1 Qxc3 26.Qc1 Qxc1 27.Rxc1 a2 28.Ra1 Bb4 29.d5 Ba4
 36/55	36:31	 74.304.702k	33.898k	-5,15	11.Qh3 Bxa3 12.Kg2 Bd1 13.Bxd1 Rxd1 14.Rf2 Nf5 15.Nf3 Rxg1+ 16.Kxg1 a4 17.Qf1 Be7 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qf1 Rxf1+ 26.Kxf1 Ra1+ 27.Kf2 Ra2+ 28.Ke1 Bd8 29.Bd2 Ba5 30.Ng1 Ra1+ 31.Kf2 Kf8 32.Ne2 Rd1 33.Bc1 Rd3 34.h4 Bxc3 35.Nxc3
 36/63	36:31	 74.304.702k	33.898k	-5,14	11.Rg3 Bc2 12.Rh3 Nh5 13.Bxh5 gxh5 14.Qxh5 Bxf6 15.gxf6 Be4+ 16.Kg1 Kh8 17.Rg3 Qe8 18.Kf2 Rg8 19.Nf3 Rxg3 20.hxg3 Bxf3 21.Qxf3 Rb2 22.Ke1 Qg8 23.e4 dxe4 24.Qf4 Qg6 25.g4 e3 26.Qxe3 Qxg4 27.Qg5 Rb1+ 28.Kf2 Qxg5 29.Bxg5 Rb3 30.a4 Rxc3 31.Ke2 Ra3 32.Bh6 Kg8 33.Kd2 Rh3 34.Bg5 Rd3+ 35.Ke2 Rxd4 36.Bd2 Re4+ 37.Kf3 Rxe5 38.Bc3 Rf5+ 39.Ke4 h5 40.Kd4 Rf4+ 41.Kc5
 36/57	36:31	 74.304.702k	33.898k	-5,12	11.Rgf1 Bxa3 12.Qh3 Be7 13.Kg1 Bd1 14.Bxd1 Rxd1 15.R6f2 Nf5 16.Nf3 Rxf1+ 17.Qxf1 a4 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qxa1 Rxa1+ 26.Kf2 Ra2+ 27.Ke1 Bd8 28.Bd2 Ba5 29.Ng1 Ra1+ 30.Kf2 Kf8 31.h3 Ke7 32.h4 Kd7 33.Ne2 Rh1 34.Ke3 Rxh4 35.Be1 Rh3+ 36.Bg3
 36/60	36:31	 74.304.702k	33.898k	-4,33	11.Rf3 Rfb8 12.e4 Bf8 13.Qh4 Bd1 14.Rh3 Nh5 15.Ng2 Bxg4 16.Qxg4 Rxg1+ 17.Kxg1 Rb1+ 18.Kf2 Rb2 19.Ke1 Bxa3 20.Ne3 Be7 21.exd5 a4 22.dxe6 fxe6 23.Nxc4 a3 24.Nxa3 Bxa3 25.Re3 Bf8 26.Qf3 Qa4 27.Re2 Be7 28.h4 Qa1+ 29.Kf2 Qd1 30.Be1 Rb8 31.Rd2 Qb1 32.Rd1 Qb5 33.Kg1 Rf8 34.Qg2 Nf4 35.Qg4 Rf5 36.Kh2 Qb2+ 37.Rd2 Qxc3 38.Qg3 Qc4 39.Rf2 Qxd4 40.Bc3 Qd1

.

I don't know what you are analysing.
The real position is this one:

[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3

And the rook is ALREADY on g3.
If you are certain black is losing that, you might simply acknowledge it, then we might analyse something else.

Sorry to intervene, but you just inserted a very weak move Rfc8? move and SF don't like
that weak move you inserted. It was already -5,16 in blacks favor without the Rfc8.

[fastgm]

I don't know what you are analysing.
The real position is this one:

[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3

And the rook is ALREADY on g3.
If you are certain black is losing that, you might simply acknowledge it, then we might analyse something else.

Stockfish chose 10...Rb1 as best move not 10...Rfc8:

Code: Select all

Depth 36: 36/65   08:23    15.603.654k   30.968k   -2,93   9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 

[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3
But anyway, even after 10...Rfc8 11.Rg3 Nh5 the white attack is over.

Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 49/78	49:05	106.192.032k	36.057k	+1,89	3. ... Nh5 4.Bxh5 Bf8 5.Bxg6 fxg6 6.Qh3 Bd1 7.Rg1 Bxa3 8.Rgf1 Rf8 9.e4 dxe4 10.Kg1 a4 11.Be3 Bf3 12.Nxf3 exf3 13.Qg4 Rxf6 14.gxf6 Bf8 15.Qxf3 Kf7 16.Ra1 Rb3 17.Qa8 a3 18.Bd2 Qb5 19.Qe4 Qd5 20.Qxd5 exd5 21.h4 Ke6 22.Kf1 h6 23.Ke2 g5 24.hxg5 hxg5 25.Bxg5 Rxc3 26.Bc1 Bb4 27.Kd1 Rd3+ 28.Kc2 Rxd4 29.Bxa3 Bxa3 30.Rxa3 Rf4 31.Ra7 Kxe5 32.f7 Rf6 33.Kc3 Ke6 34.Kd4 Rf4+ 35.Kc5 Rxf7 36.Ra8 Rf1 37.Ra2 Re1 38.Kd4 Rd1+ 39.Kc3 Rd3+ 40.Kc2 Ke5

[Lyudmil Tsvetkov]

I don't know, but either you or SF exhibits some failures.
Any reason why you suddenly started analysing the Rf4 lines before the Qh6 one was fully analysed?

Lyudmil, it's not a Multi PV Mode analysis but a best move analysis. Stockfish simply changed his mind between Qh6 and Rf4 with increasing depth.

Code: Select all

Depth 29: 29/48   00:17       530.887k   29.530k   -1,42   9.Qh6 Ba4 10.Bg4 Rfc8 11.e4 Bf8 12.Qh4 dxe4 13.Rg3 e3
Depth 30: 30/62   01:28     2.625.343k   29.551k   -2,46   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf3 Nh4 13.Rfg3 Qe7
Depth 36: 36/65   08:23    15.603.654k   30.968k   -2,93   9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7
Depth 37: 37/59   13:53    26.110.609k   31.318k   -3,13   9.Rf4 Ba4 10.Bf3 Nf5 11.Bg4 Bxg5 12.Rf2 Be7 13.Rxf5 exf5
etc.

This is the "best move infinite analysis" after 9.Qh6 Ba4 10.Bg4:

[d]1r3rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/4N1RK b - - 8 10
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

44/83	32:52	 65.296.993k	33.106k	+4,00	10. ... Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 14.Rxf7 Kxf7 15.Kg2 R8b2 16.Nf3 Kg8 17.Qh3 Bd7 18.a4 Rd1 19.Kg3 Nf5+ 20.Kf2 Rbxd2+ 21.Nxd2 Rxd2+ 22.Kf1 Rc2 23.Qf3 Rxc3 24.Bxf5 gxf5 25.Qh5 Rc1+ 26.Kg2 c3 27.g6 hxg6 28.Qxg6+ Bg7 29.Qg5 c2 30.Qd8+ Kh7 31.Qxd7 Rg1+ 32.Kxg1 c1Q+ 33.Kg2 Qxe3 34.Qxe6 Qe2+ 35.Kg1 Qe1+ 36.Kg2 Qe4+ 37.Kf1 Qh1+ 38.Kf2 Qxh2+ 39.Kf3 Qh3+ 40.Kf2 Qh4+ 41.Kf1 Qh1+ 42.Ke2 Qe4+ 43.Kf1 f4 44.Qh3+ Kg6 45.Qe6+ Kg5 46.Qe7+ Kh6 47.Qh4+ Kg6

and a "Multi PV Mode analysis" 5 moves after 10...Rb1:

[d]5rk1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P3/3B3P/1r2N1RK w - - 9 11
Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 36/66	36:31	 74.304.702k	33.898k	-5,16	11.e4 Bxa3 12.Ng2 Rfb8 13.Ne3 dxe4 14.Qh3 Bc6 15.Rff1 Rxf1 16.Qxf1 Nf5 17.Bxf5 exf5 18.h4 a4 19.Kh2 Be7 20.Nxc4 a3 21.Bf4 Rb3 22.Qc1 Qe6 23.Ne3 Rb2+ 24.Kg3 Qb3 25.Qd1 Qxc3 26.Qc1 Qxc1 27.Rxc1 a2 28.Ra1 Bb4 29.d5 Ba4
 36/55	36:31	 74.304.702k	33.898k	-5,15	11.Qh3 Bxa3 12.Kg2 Bd1 13.Bxd1 Rxd1 14.Rf2 Nf5 15.Nf3 Rxg1+ 16.Kxg1 a4 17.Qf1 Be7 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qf1 Rxf1+ 26.Kxf1 Ra1+ 27.Kf2 Ra2+ 28.Ke1 Bd8 29.Bd2 Ba5 30.Ng1 Ra1+ 31.Kf2 Kf8 32.Ne2 Rd1 33.Bc1 Rd3 34.h4 Bxc3 35.Nxc3
 36/63	36:31	 74.304.702k	33.898k	-5,14	11.Rg3 Bc2 12.Rh3 Nh5 13.Bxh5 gxh5 14.Qxh5 Bxf6 15.gxf6 Be4+ 16.Kg1 Kh8 17.Rg3 Qe8 18.Kf2 Rg8 19.Nf3 Rxg3 20.hxg3 Bxf3 21.Qxf3 Rb2 22.Ke1 Qg8 23.e4 dxe4 24.Qf4 Qg6 25.g4 e3 26.Qxe3 Qxg4 27.Qg5 Rb1+ 28.Kf2 Qxg5 29.Bxg5 Rb3 30.a4 Rxc3 31.Ke2 Ra3 32.Bh6 Kg8 33.Kd2 Rh3 34.Bg5 Rd3+ 35.Ke2 Rxd4 36.Bd2 Re4+ 37.Kf3 Rxe5 38.Bc3 Rf5+ 39.Ke4 h5 40.Kd4 Rf4+ 41.Kc5
 36/57	36:31	 74.304.702k	33.898k	-5,12	11.Rgf1 Bxa3 12.Qh3 Be7 13.Kg1 Bd1 14.Bxd1 Rxd1 15.R6f2 Nf5 16.Nf3 Rxf1+ 17.Qxf1 a4 18.Qb1 a3 19.Bc1 Qa4 20.Rc2 Ra8 21.Qa2 Nxe3 22.Bxe3 Qxc2 23.Qxc2 a2 24.Qd1 a1R 25.Qxa1 Rxa1+ 26.Kf2 Ra2+ 27.Ke1 Bd8 28.Bd2 Ba5 29.Ng1 Ra1+ 30.Kf2 Kf8 31.h3 Ke7 32.h4 Kd7 33.Ne2 Rh1 34.Ke3 Rxh4 35.Be1 Rh3+ 36.Bg3
 36/60	36:31	 74.304.702k	33.898k	-4,33	11.Rf3 Rfb8 12.e4 Bf8 13.Qh4 Bd1 14.Rh3 Nh5 15.Ng2 Bxg4 16.Qxg4 Rxg1+ 17.Kxg1 Rb1+ 18.Kf2 Rb2 19.Ke1 Bxa3 20.Ne3 Be7 21.exd5 a4 22.dxe6 fxe6 23.Nxc4 a3 24.Nxa3 Bxa3 25.Re3 Bf8 26.Qf3 Qa4 27.Re2 Be7 28.h4 Qa1+ 29.Kf2 Qd1 30.Be1 Rb8 31.Rd2 Qb1 32.Rd1 Qb5 33.Kg1 Rf8 34.Qg2 Nf4 35.Qg4 Rf5 36.Kh2 Qb2+ 37.Rd2 Qxc3 38.Qg3 Qc4 39.Rf2 Qxd4 40.Bc3 Qd1

.

I don't know what you are analysing.
The real position is this one:

[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3

And the rook is ALREADY on g3.
If you are certain black is losing that, you might simply acknowledge it, then we might analyse something else.

Sorry to intervene, but you just inserted a very weak move Rfc8? move and SF don't like
that weak move you inserted. It was already -5,16 in blacks favor without the Rfc8.

Don't talk BS.
If he can take back moves, can not I do the same?
The position before/and after Rf6 is won for white, like it or not.

[Lyudmil Tsvetkov]

I don't know what you are analysing.
The real position is this one:

[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3

And the rook is ALREADY on g3.
If you are certain black is losing that, you might simply acknowledge it, then we might analyse something else.

Stockfish chose 10...Rb1 as best move not 10...Rfc8:

Code: Select all

Depth 36: 36/65   08:23    15.603.654k   30.968k   -2,93   9.Qh6 Ba4 10.Bg4 Rb1 11.Rf3 Rfb8 12.Rgf1 Bf8 13.Rxf7 Qxf7 

[d]1rr3k1/3qbpnp/4pRpQ/p2pP1P1/b1pP2B1/P1P1P1R1/3B3P/4N2K b - - 0 3
But anyway, even after 10...Rfc8 11.Rg3 Nh5 the white attack is over.

Stockfish 180113 64 BMI2, 18 cores

Code: Select all

 49/78	49:05	106.192.032k	36.057k	+1,89	3. ... Nh5 4.Bxh5 Bf8 5.Bxg6 fxg6 6.Qh3 Bd1 7.Rg1 Bxa3 8.Rgf1 Rf8 9.e4 dxe4 10.Kg1 a4 11.Be3 Bf3 12.Nxf3 exf3 13.Qg4 Rxf6 14.gxf6 Bf8 15.Qxf3 Kf7 16.Ra1 Rb3 17.Qa8 a3 18.Bd2 Qb5 19.Qe4 Qd5 20.Qxd5 exd5 21.h4 Ke6 22.Kf1 h6 23.Ke2 g5 24.hxg5 hxg5 25.Bxg5 Rxc3 26.Bc1 Bb4 27.Kd1 Rd3+ 28.Kc2 Rxd4 29.Bxa3 Bxa3 30.Rxa3 Rf4 31.Ra7 Kxe5 32.f7 Rf6 33.Kc3 Ke6 34.Kd4 Rf4+ 35.Kc5 Rxf7 36.Ra8 Rf1 37.Ra2 Re1 38.Kd4 Rd1+ 39.Kc3 Rd3+ 40.Kc2 Ke5

If you/SF is able to take back moves, I should be able to do the same, I guess.
In your line, e4 instead of Rg1 seems to be much better:

[d]1rr2bk1/3q3p/4pRp1/p2pP1P1/2pPP3/P1P3RQ/3B3P/3bN2K b - - 0 5

Maybe, black will be able to draw, I don't know.

I don't know what you want to claim, that Rf6 does not win?
Certainly it does, I am just too tired now and extremely busy to do careful analysis of alternative lines.

Btw., after Rf6 Qd8 Nf1 Nf6 gf6 Bf6 ef6 Qf6, did you check with longer search all the lines:

[d]r4rk1/pb3p1p/4pqp1/1p1p4/2pP4/P1P1P2Q/1PB4P/R1B2NK1 w - - 0 5

I guess this is won for white, but you will need 30-40 moves until the score changes.
I myself tried this with SF and it starts winning after 30-40 moves.
From my experience drawn from different databases and top engine games, 2 minor pieces vs rook + 2 pawns, when the 2 minors also have the bishop pair is won for the minor side, in maybe at least 90% of cases, so, I suggest you check more carefully/maybe play some games to get convinced.

Alternatively, white has also Bd1 instead of Nf1:

[d]r2q1rk1/pb2bp1p/4pRp1/1p1pP1Pn/2pP4/P1P1P2Q/1P1N3P/R1BB2K1 b - - 0 2

This should also be investigated closely.

I am fully certain Rf6 wins, and maybe other moves too.
I just don't have even couple of minutes time now to give just this position.

It is a pity all the most beautiful lines are not evident from what SF chooses.
There are really some very intriguing variations here, if SF accepts the sacrifice.
Pity I don't have more time.

[fastgm]

If you/SF is able to take back moves, I should be able to do the same, I guess.
In your line, e4 instead of Rg1 seems to be much better:

[d]1rr2bk1/3q3p/4pRp1/p2pP1P1/2pPP3/P1P3RQ/3B3P/3bN2K b - - 0 5

Maybe, black will be able to draw, I don't know.

[d]r1q2rk1/pb2bp1p/4p1p1/1p1pP1Pn/2pP4/P1P1P2Q/1PBN3P/R1B2RK1 w - - 0 17
To remind the whole move order:
17. Rf6 Qd8 18. Nf3 a5 19. Bd2 b4 20. Kh1 Bc6 21. Rg1 bxa3 22. bxa3 Rb8 23. Ne1 Qd7 24. Bd1 Ng7 25. Qh6 Ba4 26. Bg4 Rfc8 27. Rg3 Nh5 28. Bxh5 Bf8 29. Bxg6 fxg6 30. Qh3 Bd1 31. e4

Stockfish is optimistic to hold the position or even to win it after 31.e4:

[d]1rr2bk1/3q3p/4pRp1/p2pP1P1/2pPP3/P1P3RQ/3B3P/3bN2K b - - 0 31

Code: Select all

 48/85	1:03:24	139.396.477k	36.644k	+2,22	31. ... dxe4 32.Rg2 Bxa3 33.Rgf2 Bh5 34.Kg2 Rb1 35.Qe3 Bg4 36.Qxe4 Qb7 37.Qxb7 Rxb7 38.Nc2 Be7 39.R6f4 Bf5 40.Ne3 Bxg5 41.Nxf5 gxf5 42.R4f3 Bxd2 43.Rxd2 a4 44.d5 a3 45.Rff2 exd5 46.Rxd5 Ra8 47.Ra2 Rb3 48.e6 Rxc3 49.e7 Re8 50.Ra5 Rxe7 51.R5xa3 Rxa3 52.Rxa3 Kf7 53.Kf3 Kf6 54.Ra2 c3 55.Rc2 Rc7 56.Kf4 h6 57.h3 Ke6 58.Ke3 Ke5 59.Kd3 f4 60.Rxc3

I don't know what you want to claim, that Rf6 does not win?
Certainly it does, I am just too tired now and extremely busy to do careful analysis of alternative lines.

So far I have not claimed anything, have I?
It's an very interesting and highly complex position. Rf6 is the best move and gives white advantage, but whether this advantage is enough to win is still not quite clear. Right now I would say white has good winning chances.

Btw., after Rf6 Qd8 Nf1 Nf6 gf6 Bf6 ef6 Qf6, did you check with longer search all the lines:

[d]r4rk1/pb3p1p/4pqp1/1p1p4/2pP4/P1P1P2Q/1PB4P/R1B2NK1 w - - 0 5

I guess this is won for white, but you will need 30-40 moves until the score changes.
I myself tried this with SF and it starts winning after 30-40 moves.
From my experience drawn from different databases and top engine games, 2 minor pieces vs rook + 2 pawns, when the 2 minors also have the bishop pair is won for the minor side, in maybe at least 90% of cases, so, I suggest you

check more carefully/maybe play some games to get convinced.

I'll take again a closer look at this position.

Alternatively, white has also Bd1 instead of Nf1:

[d]r2q1rk1/pb2bp1p/4pRp1/1p1pP1Pn/2pP4/P1P1P2Q/1P1N3P/R1BB2K1 b - - 0 2

This should also be investigated closely.

I am fully certain Rf6 wins, and maybe other moves too.
I just don't have even couple of minutes time now to give just this position.

It is a pity all the most beautiful lines are not evident from what SF chooses.
There are really some very intriguing variations here, if SF accepts the sacrifice.
Pity I don't have more time.

As I said before, it's a very complex position.
The white attack looks very dangerous. But black also has defense resources and counterplay on the queenside.

The whole thread has become quite confusing and it is becoming more and more difficult to follow the postings and analyses.
Maybe I have the time for a summary of our analyses.