Fascinating imbalance

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Dann Corbit
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Re: Fascinating imbalance

Post by Dann Corbit »

My crude assessment of the position:

Black is woefully behind on material.

That is because his bishop is forever caged and the rook on A is trapped.
If the king moves to a7 to free the rook, then white pushes the d pawn giving check, which will clearly lead to a passed pawn.

Basically, black has 2 useful pieces and white has 5.
I don't see a clear attack yet from the fgh pawns, but maybe it will occur to me when I think about the position long enoiugh.
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Dann Corbit
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Re: Fascinating imbalance

Post by Dann Corbit »

I should mention that both of white's bishops are fairly weak because of the currently closed position.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
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Lyudmil Tsvetkov
Posts: 6052
Joined: Tue Jun 12, 2012 12:41 pm

Re: Fascinating imbalance

Post by Lyudmil Tsvetkov »

Dann Corbit wrote:My crude assessment of the position:

Black is woefully behind on material.

That is because his bishop is forever caged and the rook on A is trapped.
If the king moves to a7 to free the rook, then white pushes the d pawn giving check, which will clearly lead to a passed pawn.

Basically, black has 2 useful pieces and white has 5.
I don't see a clear attack yet from the fgh pawns, but maybe it will occur to me when I think about the position long enoiugh.
Attack is obvious: Kh2, followed by g4,h4 and h5.

If engines do not see Kh2 and g4, run might be a bit off target.
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Nordlandia
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Re: Fascinating imbalance

Post by Nordlandia »

[d]6k1/1b3p2/1rn1pBpr/3pP2p/2pP3P/R1P3P1/2P1BPK1/R7 w - - 0 0

Any clear winning plans for white?

SF is stuck at +2.5
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Lyudmil Tsvetkov
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Re: Fascinating imbalance

Post by Lyudmil Tsvetkov »

Nordlandia wrote:[d]6k1/1b3p2/1rn1pBpr/3pP2p/2pP3P/R1P3P1/2P1BPK1/R7 w - - 0 0

Any clear winning plans for white?

SF is stuck at +2.5
Rc1, R3a1, Rb1 with exchange of rooks.
SF certainly sees this.
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Nordlandia
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Re: Fascinating imbalance

Post by Nordlandia »

Interesting exchange sac for engine testing

[pgn][Event "?"]
[Site "?"]
[Date "2004.??.??"]
[Round "?"]
[White "Wahedi"]
[Black "Sergey Kasparov"]
[Result "*"]
[ECO "B10"]
[PlyCount "32"]
[EventDate "2004.??.??"]

1. e4 c6 2. d3 d5 3. Nd2 g6 4. g3 Bg7 5. Bg2 dxe4 6. Nxe4 Nd7 7. Nf3 Ngf6 8.
O-O O-O 9. Qe2 Re8 10. Re1 Qb6 11. c3 a5 12. Bg5 a4 13. Qd2 Nxe4 14. Rxe4 Nf6
15. Re2 Be6 16. Rxe6 fxe6 *

[/pgn]

Code: Select all

[Event "?"]
[Site "?"]
[Date "2004.??.??"]
[Round "?"]
[White "Wahedi"]
[Black "Sergey Kasparov"]
[Result "*"]
[ECO "B10"]
[PlyCount "32"]
[EventDate "2004.??.??"]

1. e4 c6 2. d3 d5 3. Nd2 g6 4. g3 Bg7 5. Bg2 dxe4 6. Nxe4 Nd7 7. Nf3 Ngf6 8.
O-O O-O 9. Qe2 Re8 10. Re1 Qb6 11. c3 a5 12. Bg5 a4 13. Qd2 Nxe4 14. Rxe4 Nf6
15. Re2 Be6 16. Rxe6 fxe6 *
[d]r3r1k1/1p2p1bp/1qp1pnp1/6B1/p7/2PP1NP1/PP1Q1PBP/R5K1 w - - 0 17

Candidate #1 - 17. Re1!

Candidate #2 - 17. Bh3
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Dann Corbit
Posts: 12540
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Location: Redmond, WA USA

Re: Fascinating imbalance

Post by Dann Corbit »

Lyudmil Tsvetkov wrote:
Dann Corbit wrote:My crude assessment of the position:

Black is woefully behind on material.

That is because his bishop is forever caged and the rook on A is trapped.
If the king moves to a7 to free the rook, then white pushes the d pawn giving check, which will clearly lead to a passed pawn.

Basically, black has 2 useful pieces and white has 5.
I don't see a clear attack yet from the fgh pawns, but maybe it will occur to me when I think about the position long enoiugh.
Attack is obvious: Kh2, followed by g4,h4 and h5.

If engines do not see Kh2 and g4, run might be a bit off target.
Sting plans to play Kh2, but cannot see more than a draw for white:
[d]rk1r4/1b1p2pp/p1pPpp2/Pp2P2q/1P1P1P2/3BBN1P/5RP1/R5K1 b - -

Code: Select all

Searching: rk1r4/1b1p2pp/p1pPpp2/Pp2P2q/1P1P1P2/3BBN1P/5RP1/R5K1/ b - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 1   +2.10   00:00     494  f5 
 2   +2.14   00:00     777  f5 Rc2 
 3   +2.14   00:00    1212  f5 Rc2 Qg6 
 4   +2.30   00:00    2504  f5 Rb1 Qg6 Rc2 
 5   +2.18   00:00    5403  f5 Rb1 Ra7 Rc2 Qg6 
 6   +2.30   00:00    9035  f5 Rb1 Qg6 Ra2 Ra7 Ng5 
 7   +2.38   00:00   22175  f5 Rb1 Qg6 Rc1 Qg3 Rb1 Ra7 Rc2 
 8   +2.42   00:00   35677  f5 Rb1 Qg6 Rc1 Qg3 Rb1 Ra7 Rc1 Rf8 d5 cxd5 Bxa7+ 
                            Kxa7 
 9   +2.38   00:00   46350  f5 Rc1 Qg6 Ng5 h6 Nf3 Qg3 Rb1 Rf8 Rc2 
10   +2.34   00:00  164211  f5 Rc1 Rf8 Rc3 Qg6 g4 Qh6 gxf5 Qxh3 fxe6 c5 
11   +2.34   00:00  180708  f5 Rc1 Rf8 Rc3 Qg6 g4 Qh6 gxf5 Qxh3 fxe6 c5 
12   +2.26   00:01  386277  f5 Nd2 h6 Nb3 g5 Nc5 g4 hxg4 Qxg4 Be2 Qg3 Rf3 
13   +2.22   00:01  908437  f5 Nd2 Qg6 Nb3 h5 Rc1 h4 Nc5 Ra7 Bd2 Ka8 Bc3 Qg3 
                            Rf3 
14   +2.34   00:01   1977K  f5 Rc1 h6 Be2 Qg6 Nd2 h5 Bd3 h4 Nf3 Qg3 Ra1 Rh8 Rc2 
15   +2.30   00:01   2816K  f5 Rc1 h6 Nd2 g5 Be2 Qg6 Nb3 gxf4 Bxf4 Ka7 Be3 Rab8 
                            d5+ Ka8 dxe6 Qxe6 
16   +2.30   00:01   2942K  f5 Rc1 h6 Nd2 g5 Be2 Qg6 Nb3 gxf4 Bxf4 Ka7 Be3 Rab8 
                            d5+ Ka8 dxe6 Qxe6 
17   +2.18   00:03   8138K  f5 Rc1 Rc8 Nd2 Qg6 Be2 Rf8 Nb3 Qh6 Nc5 Rd8 Bd3 Qh4 
                            Rf3 g6 Rf2 Ka7 d5 Qg3 Rf3 
18   +2.18   00:03   9307K  f5 Rc1 Rc8 Nd2 Qg6 Be2 Qg3 Rf3 Qh4 Rf2 c5 dxc5 Qg3 
                            Nf1 Qg6 Nd2 Bc6 Bf3 Kb7 Bxc6+ Kxc6 Nf3 Qg3 Nd4+ Kd5 
                            Rf3 
19   +2.42   00:06  22545K  h6 Rc1 Rg8 Nd2 f5 Nb3 g5 Nc5 Bc8 Be2 Qh4 Rf3 gxf4 
                            Bxf4 Ka7 Rf1 Rg7 Rc3 Bb7 g4 fxg4 Bxg4 
20   +2.34   00:07  26665K  h6 Rc1 Rg8 Nd2 f5 Be2 Qf7 Nb3 g5 Nc5 gxf4 Bxf4 Qg7 
                            Rc3 Ka7 Bd1 Rad8 Rg3 Qh7 Rf3 h5 Rxg8 Rxg8 Rc3 
21   +2.26   00:09  33894K  h6 Rc1 Rg8 Nd2 f5 Be2 Qf7 Nb3 g5 Nc5 Qg7 Bh5 gxf4 
                            Bxf4 Ka7 Rc3 Qh7 Rf3 Rad8 Rg3 Rxg3 Rxg3 
22   +2.22   00:11  38224K  h6 Rc1 Rg8 Nd2 f5 Be2 Qf7 Nb3 g5 Nc5 Qg7 Bh5 gxf4 
                            Bxf4 Ka7 Rc3 Qh7 Rf3 Rad8 Rg3 Kb8 Be2 Rdf8 Bh5 Rxg3 
                            Rxg3 
23   +2.22   00:13  46005K  h6 Rc1 Rg8 Nd2 f5 Be2 Qf7 Nb3 g5 Nc5 Qg7 Bh5 gxf4 
                            Bxf4 Ka7 Rc3 Qh7 Rf3 Rad8 Rg3 Rc8 Be2 Kb8 Bh5 Rcf8 
                            Rxg8 Rxg8 
24   +2.34   00:18  64217K  h6 Rc1 Rg8 Nd2 f5 Be2 Qf7 Nb3 g5 Nc5 Qg7 Bh5 gxf4 
                            Bxf4 Ka7 Rc3 Qh7 Ra3 Rad8 Rf3 Rg7 Rfc3 Kb8 Rc2 Rf8 
                            Rf3 
25   +2.22   00:26  95704K  h6 Rc1 Rg8 Nd2 f5 Be2 Qf7 Nb3 g5 Nc5 Qg7 Bh5 gxf4 
                            Bxf4 Ka7 Rc3 Raf8 Rg3 Qh7 Rf3 Kb8 Rc3 Rc8 Bd2 Rcd8 
                            Bf4 Rc8 
26   +2.26   00:50 187127K  h6 Rc1 Qf7 Nd2 f5 Nb3 Rg8 Nc5 g5 Be2 Qg7 Bh5 gxf4 
                            Bxf4 Ka7 Rc3 Raf8 Rg3 Qh7 Rf3 Rd8 Rc3 Kb8 Ra3 Ka8 
27   +2.14   02:46 638418K  h6 Rc1 Qf7 Nd2 f5 Nb3 Rg8 Nc5 g5 Be2 gxf4 Rxf4 h5 
                            Rf2 h4 Ne4 Bc8 Nf6 Rh8 Bd3 Qg6 Rf4 Qg3 Rf3 Qg7 Rf2 
28   +2.02   13:40   3206M  h6 Rc1 Re8 Ne1 Qf7 Be2 f5 Nd3 Rg8 Nc5 g5 d5 cxd5 
29   +2.02   14:28   3390M  h6 Rc1 Re8 Ne1 Qf7 Be2 f5 Nd3 Rg8 Nc5 g6 Rf3 Re8 
                            Rf2 Rd8 Bd3 Rg8 Be2 Qg7 Rf3 Qh7 Rc3 Qf7 Rc1 
30   +2.02   15:18   3588M  h6 Rc1 Re8 Ne1 Qf7 Be2 f5 Nd3 Rg8 Nc5 g6 Rf3 Re8 
                            Rf2 Rd8 Bd3 Rg8 Be2 Qg7 Rf3 Qh7 Rc3 Qf7 
31   +2.02   16:34   3887M  h6 Rc1 Re8 Ne1 Qf7 Be2 f5 Nd3 Rg8 Nc5 g6 Rf3 Re8 
                            Rf2 Rd8 Bd3 Rg8 Be2 Qg7 Rf3 Qh7 Rc3 Qf7 Rc1 
32   +1.98   49:16  11637M  Rh8 Rc1 Bc8 Nd2 Qf7 Nb3 Re8 Nc5 f5 Be2 Rh8 Rf3 h5 
                            Rf1 h4 Rc3 Qg6 Rb1 Qh6 Rc1 Ra7 Rb1 Qg6 
33   +1.98 1:24:41  20075M  Rh8 Rc1 Re8 Kh2 Qf7 Nd2 h5 Ne4 f5 Nc5 h4 Kg1 Bc8 
                            Rb2 Rh8 Be2 Qg6 Rc2 Qh6 Rc3 Ra7 Rb1 
34   +1.98 1:41:54  24252M  Rh8 Rc1 Re8 Kh2 Qf7 Nd2 h5 Ne4 f5 Nc5 h4 Kg1 Bc8 
                            Rb2 Rh8 Be2 Qg6 Rc2 Qh6 Rc3 Ra7 Rb1 
35   +1.98 1:56:46  27867M  Rh8 Rc1 Re8 Kh2 Qf7 Nd2 h5 Ne4 f5 Nc5 h4 Kg1 Rd8 
                            Be2 Qg6 Rf1 Qh6 Rc2 Bc8 Rc1 Qg6 Bf2 Rh8 Rc3 Qh6 Be3 
                            Ra7 Rb1 Ra8 Rc1 
36   +1.98 2:13:53  32046M  Rh8 Rc1 Re8 Kh2 Qf7 Nd2 h5 Ne4 f5 Nc5 h4 Kg1 Rd8 
                            Be2 Qg6 Rf1 Qh6 Rc2 Bc8 Rc1 Qg6 
37   +1.98 3:17:13  47445M  Rh8 Rc1 Re8 Kh2 Rc8 Kg1 Qh6 Kh2 f5 Nd2 Qg6 Nb3 h5 
                            Nc5 Rd8 
38   +1.98 4:56:33  71921M  Rh8 Rc1 Re8 Kh2 Rc8 Kg1 f5 Nd2 Qg6 Be2 h6 Nb3 Qf7 
                            Nc5 g6 Rf1 Rh8 Bd3 Bc8 Be2 h5 Rc2 h4 Rb1 Qg7 Rf1 
39   +1.98 6:46:21  99473M  Rh8 Rc1 Re8 Kh2 Rc8 Kg1 f5 Nd2 Qg6 Be2 h6 Nb3 Qf7 
                            Nc5 g6 Rf1 Rh8 Bd3 Bc8 Be2 h5 Rc2 h4 Rb1 Qg7 Rf1 
                            Qh6 Ra1 
40   +0.00 8:00:01 118020M  Rh8 Rc1 Re8 Kh2 Rc8 Kg1 f5 Nd2 Qg6 Be2 h6 Nb3 Qf7 
                            Nc5 g6 Rf1 Rh8 Bd3 Bc8 Be2 h5 Rc2 h4 Rb1 Qg7 Rf1 
                            Qh6 Ra1 
Nodes: 118020671236
Nodes/second: 4097785
Best move: Rh8
Ponder move: Rc1
Last edited by Dann Corbit on Fri Sep 02, 2016 8:47 pm, edited 1 time in total.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Dann Corbit
Posts: 12540
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Fascinating imbalance

Post by Dann Corbit »

Stockfish plans to play Kh2, but it is delayed. It sees a small lead for black:
[d]rk1r4/1b1p2pp/p1pPpp2/Pp2P2q/1P1P1P2/3BBN1P/5RP1/R5K1 b - -

Code: Select all

Analysis of Q:\lud2.epd   
9/1/2016 6:33:56 PM Level: 39600 Seconds
Analyzing engine: Stockfish-x64-crusty2:conf

 1                      
    Avoid move: 
    Best move (Stockfish-x64-crusty2:conf): c6-c5
    Not found in: 11:00:00
     2/2	00:00	      12,918	445,448	+1.29	Ra7 Rff1
     3/3	00:00	      51,765	1,150,333	+1.25	f5 Rb1 h6
     4/4	00:00	      90,365	1,481,393	+1.27	f5 Raf1 h6 Rc2
     5/6	00:00	     130,148	1,690,233	+1.20	f5 Rc1 h6 Rff1 Ra7
     6/6	00:00	     168,911	1,816,247	+1.25	f5 Rc1 h6 Rff1 Rg8 d5 exd5
     7/7	00:00	     210,702	1,898,216	+1.30	f5 Rc1 Rc8 Ra2 Rf8 Be2 Qg6
     8/8	00:00	     259,219	1,978,770	+1.35	f5 Rc1 Rc8 Nd2 Qg6 Nf3 h6 Be2
     9/10	00:00	     344,345	2,138,788	+1.15	h6 Rc1 Rg8 Rfc2 c5 Bh7 Rf8 exf6 Bxf3
    10/16	00:00	     479,801	2,317,879	+1.10	Qf7 Nd2 h5 Nb3 f5 Nc5 Ra7 Rc1 h4 Rf3
    11/16	00:00	     628,900	2,447,081	+1.30	h6 Rc1 Qf7 Nd2 f5 Nf3 Rf8 Nd2 Rc8 Nb3 Rg8
    12/25	00:00	     831,519	2,574,362	+1.24	h6 Rc1 Rg8 f5 exf5 Nd2 Qf7 Rxf5 Qe6 Rc5 Ra7 Rc1
    13/25	00:00	     890,562	2,588,843	+1.34	h6 Rc1 Rg8 f5 exf5 Nd2 Qe8 Rxf5 Qe6 Rc3 fxe5 dxe5 Qa2 Nb3 Qb2
    14/25	00:00	     978,697	2,602,917	+1.35	h6 Rc1 Rg8 Bh7 Rh8 Bd3 f5 Rff1 Rg8 d5 cxd5 Rc7 Qf7 Rfc1 Rc8
    15/25	00:00	   1,365,603	2,736,679	+1.36	h6 Rc1 Rg8 Bh7 Rh8 Bd3 f5 Be2 Qf7 Bd3 Rg8 Rc5 Qh5 Be2 Ra7 Rc1
    16/25	00:00	   1,443,064	2,738,261	+1.39	h6 Rc1 Rg8 Bh7 Rh8 Bd3 f5 Be2 Qf7 Bd3 Rg8 Rfc2 g5 fxg5 hxg5 Bxg5 Ka7
    17/25	00:00	   2,777,029	2,935,548	+1.31	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 Bd3 Qd8 d5 cxd5 Bb6 Qe8 Rfc2 g5 Bc7+ Kc8 Bb6+ Bc6
    18/28	00:01	   2,994,593	2,930,130	+1.32	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 g3 Qd8 h4 Qe8 Bd3 Qh5 Be2 Rc8 Bd3 Ra7 Kg2
    19/28	00:01	   4,569,171	3,013,965	+1.29	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 g3 Qf7 Kg2 Qh5 Kh2 Ra7 Kg2 g5 fxg5
    20/29	00:01	   5,543,984	3,029,499	+1.25	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 g3 Qd8 h4 Qe8 Bd3 Qh5 Be2 Qf7 Bd3 Rf8 Nd2 g6 Nb3 Rg8 Rf3 Ra7 Nc5
    21/29	00:02	   7,115,574	3,053,894	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 g3 Rh8 Be2 Qf7 Rff1 Rg8 Rfd1 Qh5 Ng1 Qe8 Nf3 Qf7 Bd3
    22/29	00:02	   8,315,495	3,050,438	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 g3 c5 dxc5 Bd5 Be2 Kb7 Rff1 Qd8 h4 Rh8 Nd4 Qe8 c6+ dxc6 Rf2
    23/29	00:03	   9,135,174	3,052,179	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 Be2 Qh5 g3 Qf7 Bd3 Rh8 Be2 Ra7 Bd3 Rc8 Nd2 Rg8 Nf3 Qg6 Be2
    24/29	00:03	  11,056,513	3,064,443	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 Be2 Qh5 g3 Qf7 Bd3 Rh8 Be2 Ra7 Bd3 Rc8 Nd2 Ra8 Nb3 Rg8 Nd2 c5 Rxc5
    25/37	00:07	  23,785,028	3,118,121	+1.15	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 Rff1 Qf7 g3 Qh5 Rf2 Qe8 Rff1 Qf7 Rf2 Qh5 Rcf1 Rh8 Rc1 Qf7 Bd3
    26/38	00:43	 140,829,144	3,217,187	+1.17	c5 dxc5 Bd5 Bd4 Rg8 Kh2 f5 Be2 h6 Be3 Qf7 g3 Kb7 Rff1 Rac8 Rfd1 g6 Rg1 Rh8 Rgd1 Rhf8 Rg1 Rg8 Rac1 g5 fxg5 hxg5 Nxg5
    27/38	00:46	 148,651,570	3,212,559	+1.18	c5 dxc5 Bd5 Bd4 Rg8 Kh2 f5 Be2 h6 Be3 Qf7 g3 Kb7 Rff1 Rac8 Rfd1 Rh8 Rf1 g6 h4 g5 fxg5 hxg5 Nxg5 Qg7 Bf4 Ka7 Bf3 Bxf3
    28/45	01:42	 331,217,076	3,232,963	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Ra7 Rc2 Qc8 Bd3 Qf8 Kg2 Qg7 Rcc1 Rf8
    29/45	01:45	 339,680,452	3,231,943	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Qe8 Kg2 Qf7 Kg1 Qg7 Kh2 Rc8 Rc2 Ra7 Rcc1
    30/45	01:56	 377,691,212	3,230,311	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Qe8 Nd2 Rg7 Nf3 Ra7 Bd3 Rg8 Kg2 Qf7 d5 exd5 Bxa7+ Kxa7
    31/45	02:00	 388,144,704	3,228,083	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Qe8 Nd2 Qf7 Nb3 Rc8 Bd3 Rf8 Rc2 Qe8 Rfc1 Qf7 Nc5
    32/45	11:24	2,269,714,410	3,315,227	+1.01	Qf7 Rc1 Rc8 Ne1 Qe8 Kh2 h6 Rf1 Rd8 Nf3 Qf7 g3 f5 Be2 Qg6 Rc5 Rg8 Rc2 Rh8 Bd3 Qh5 Be2 Rg8 Rf2 Qf7 Rf1 Ra7 d5 cxd5 Rfc1 Ka8 Rc7 g5 fxg5 hxg5 Nxg5
    33/45	14:52	2,958,490,585	3,314,155	+0.94	Qf7 Rc1 Rc8 Ne1 Qe8 Kh2 h6 Rf1 Rd8 Rf2 f5 Be2 g6 Nd3 Qg8 Nc5 Qf7 Nd3 h5 Kg1 Ra7 h4 Qh7 Nc5 Ra8 Nd3 Qg7 Nc5 Re8 Nd3 Rh8 Nc5 Qf7 Bd3
    34/45	16:47	3,339,840,376	3,315,270	+0.96	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 Kg1 Ra7 Nc5 Rg8 h4 Qe8 Bf3 Rh8 Rcc2 Ra8 Nd3 Rf8 g3 Qf7 Rf1 Qg7 Rfc1 Rh8 Kg2 Ra7 Rd1 Rf8 Nc5 Qf7 Kg1
    35/48	22:20	4,450,974,489	3,321,387	+1.02	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 h4 Rf8 Kg1 Ra7 Bf3 Rh8 Nc5 Rh7 g3 Ra8 Nd3 Rh8 Nc5 Rg8 Kg2 Rd8 Kg1 Rc8 Rfc2 Rf8 Kf2 Qe8 Kg1 Qd8 Nd3
    36/48	23:06	4,605,679,930	3,322,771	+1.03	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 h4 Rf8 Kg1 Qg7 Bf3 Rg8 Nc5 Rh8 Rfc2 Ra7 Nd3 Qf7 Rf2 Rh7 d5 exd5 Bxa7+ Kxa7 Nc5 Rh8 Re1 g5 hxg5 hxg5 fxg5 Qg7
    37/48	25:49	5,162,889,337	3,331,212	+1.01	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 h4 Rf8 Kg1 Qg7 Bf3 Rg8 Nc5 Ra7 Rfc2 Qf7 Be2 Bc8 Bd3 Qg7 Rf2 Rf8 Nb3 Qg8 Be2 Bb7 Nc5 Qg7 Nb3 Ka8 Bd3 Bc8
    38/48	30:47	6,158,784,095	3,333,322	+0.99	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 Nc5 Rg8 Bd3 Ra7 Rg1 h5 Rc2 Rh8 Rgc1 Qg7 Kg1 h4 Be2 Re8 Bd3 Rc8 Kh2 Rf8 Bf2 Rh8 Be3 Rd8 Kh1 Qf7 Bf2 Qh7 Kg1
    39/53	44:32	8,978,489,913	3,359,144	+1.01	h6 Rc1 Rc8 Ne1 f5 Be2 Qf7 Nd3 Rg8 h4 Ra7 Bf3 g6 Ne1 Rf8 Nd3 Ka8 Nc5 Rg8 Nd3 Qg7 Nc5 Kb8 Rfc2 Rh8 Nd3 Ka8 Nc5 Qf7 Nd3 Rc8 Nc5 Kb8 Nd3 Rg8 Nc5 Rh8 Nd3 Ra8
    40/59	3:42:44	45,566,784,615	3,409,471	+0.87	h6 Rc1 Rc8 Ne1 f5 Be2 Qf7 Nd3 Rg8 h4 Re8 Bf3 Ra7 Nc5 Ba8 Rfc2 Rc8 Re2 Qg6 Kf2 Qe8 Rec2 Qf7 Kg1 Rf8 Nd3 Bb7 Re2 Ra8 Nc5 Qe8 Rec2 Qd8 Bh5 Rg8 d5 cxd5 Bf3 Qe8 Nxd7+ Qxd7
    41/63	4:55:24	60,547,258,950	3,415,963	+0.87	Qf7 Rc1 Rc8 Ne1 g6 Rfc2 c5 Rxc5 Rxc5 Rxc5 Ra7 Rc1 Bd5 Be2 Qf8 Rc3 h6 Nd3 Bc4 Rc1 Qd8 Rf1 f5 d5 exd5 Rf2 Bxd3 Bxa7+ Kxa7 Bxd3 Qh4 Kf1 d4 Be2 Kb7 Bf3+ Kb8 Be2 Ka7 Rf3 h5 Rf2 Qd8 Bd3 Kb7
    42/63	10:36:51	131,075,709,831	3,430,256	+0.90	c5 dxc5 Bd5 Re1 Kb7 Bd2 Rac8 Nd4 Re8 Be2 Qg6 exf6 Qxf6 Bc3 Qg6 Kh2 Qf7 Kg1 g6 Bd3 Rf8 Nc2 g5 f5 h5 Ree2 Qh7 Re3 Qh6 f6 Rf7 Rg3 Rg8 Ne3 Bc6 Rf1 g4 Bd4 Rh8 Bc3 Qf8 hxg4 h4
   9/2/2016 5:34:00 AM, Time for this analysis: 11:00:01, Rated time: 11:00:00

0 of 1 matching moves
9/2/2016 5:34:01 AM, Total time: 11:00:05 AM
Rated time: 11:00:00 = 39600 Seconds
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Lyudmil Tsvetkov
Posts: 6052
Joined: Tue Jun 12, 2012 12:41 pm

Re: Fascinating imbalance

Post by Lyudmil Tsvetkov »

Dann Corbit wrote:Stockfish plans to play Kh2, but it is delayed. It sees a small lead for black:
[d]rk1r4/1b1p2pp/p1pPpp2/Pp2P2q/1P1P1P2/3BBN1P/5RP1/R5K1 b - -

Code: Select all

Analysis of Q:\lud2.epd   
9/1/2016 6:33:56 PM Level: 39600 Seconds
Analyzing engine: Stockfish-x64-crusty2:conf

 1                      
    Avoid move: 
    Best move (Stockfish-x64-crusty2:conf): c6-c5
    Not found in: 11:00:00
     2/2	00:00	      12,918	445,448	+1.29	Ra7 Rff1
     3/3	00:00	      51,765	1,150,333	+1.25	f5 Rb1 h6
     4/4	00:00	      90,365	1,481,393	+1.27	f5 Raf1 h6 Rc2
     5/6	00:00	     130,148	1,690,233	+1.20	f5 Rc1 h6 Rff1 Ra7
     6/6	00:00	     168,911	1,816,247	+1.25	f5 Rc1 h6 Rff1 Rg8 d5 exd5
     7/7	00:00	     210,702	1,898,216	+1.30	f5 Rc1 Rc8 Ra2 Rf8 Be2 Qg6
     8/8	00:00	     259,219	1,978,770	+1.35	f5 Rc1 Rc8 Nd2 Qg6 Nf3 h6 Be2
     9/10	00:00	     344,345	2,138,788	+1.15	h6 Rc1 Rg8 Rfc2 c5 Bh7 Rf8 exf6 Bxf3
    10/16	00:00	     479,801	2,317,879	+1.10	Qf7 Nd2 h5 Nb3 f5 Nc5 Ra7 Rc1 h4 Rf3
    11/16	00:00	     628,900	2,447,081	+1.30	h6 Rc1 Qf7 Nd2 f5 Nf3 Rf8 Nd2 Rc8 Nb3 Rg8
    12/25	00:00	     831,519	2,574,362	+1.24	h6 Rc1 Rg8 f5 exf5 Nd2 Qf7 Rxf5 Qe6 Rc5 Ra7 Rc1
    13/25	00:00	     890,562	2,588,843	+1.34	h6 Rc1 Rg8 f5 exf5 Nd2 Qe8 Rxf5 Qe6 Rc3 fxe5 dxe5 Qa2 Nb3 Qb2
    14/25	00:00	     978,697	2,602,917	+1.35	h6 Rc1 Rg8 Bh7 Rh8 Bd3 f5 Rff1 Rg8 d5 cxd5 Rc7 Qf7 Rfc1 Rc8
    15/25	00:00	   1,365,603	2,736,679	+1.36	h6 Rc1 Rg8 Bh7 Rh8 Bd3 f5 Be2 Qf7 Bd3 Rg8 Rc5 Qh5 Be2 Ra7 Rc1
    16/25	00:00	   1,443,064	2,738,261	+1.39	h6 Rc1 Rg8 Bh7 Rh8 Bd3 f5 Be2 Qf7 Bd3 Rg8 Rfc2 g5 fxg5 hxg5 Bxg5 Ka7
    17/25	00:00	   2,777,029	2,935,548	+1.31	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 Bd3 Qd8 d5 cxd5 Bb6 Qe8 Rfc2 g5 Bc7+ Kc8 Bb6+ Bc6
    18/28	00:01	   2,994,593	2,930,130	+1.32	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 g3 Qd8 h4 Qe8 Bd3 Qh5 Be2 Rc8 Bd3 Ra7 Kg2
    19/28	00:01	   4,569,171	3,013,965	+1.29	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 g3 Qf7 Kg2 Qh5 Kh2 Ra7 Kg2 g5 fxg5
    20/29	00:01	   5,543,984	3,029,499	+1.25	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 g3 Qd8 h4 Qe8 Bd3 Qh5 Be2 Qf7 Bd3 Rf8 Nd2 g6 Nb3 Rg8 Rf3 Ra7 Nc5
    21/29	00:02	   7,115,574	3,053,894	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 g3 Rh8 Be2 Qf7 Rff1 Rg8 Rfd1 Qh5 Ng1 Qe8 Nf3 Qf7 Bd3
    22/29	00:02	   8,315,495	3,050,438	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 g3 c5 dxc5 Bd5 Be2 Kb7 Rff1 Qd8 h4 Rh8 Nd4 Qe8 c6+ dxc6 Rf2
    23/29	00:03	   9,135,174	3,052,179	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 Be2 Qh5 g3 Qf7 Bd3 Rh8 Be2 Ra7 Bd3 Rc8 Nd2 Rg8 Nf3 Qg6 Be2
    24/29	00:03	  11,056,513	3,064,443	+1.22	h6 Rc1 Rg8 Kh2 f5 Be2 Qf7 Bd3 Qe8 Be2 Qh5 g3 Qf7 Bd3 Rh8 Be2 Ra7 Bd3 Rc8 Nd2 Ra8 Nb3 Rg8 Nd2 c5 Rxc5
    25/37	00:07	  23,785,028	3,118,121	+1.15	h6 Rc1 Rg8 Bh7 Rc8 Bd3 f5 Be2 Rg8 Kh2 Qe8 Rff1 Qf7 g3 Qh5 Rf2 Qe8 Rff1 Qf7 Rf2 Qh5 Rcf1 Rh8 Rc1 Qf7 Bd3
    26/38	00:43	 140,829,144	3,217,187	+1.17	c5 dxc5 Bd5 Bd4 Rg8 Kh2 f5 Be2 h6 Be3 Qf7 g3 Kb7 Rff1 Rac8 Rfd1 g6 Rg1 Rh8 Rgd1 Rhf8 Rg1 Rg8 Rac1 g5 fxg5 hxg5 Nxg5
    27/38	00:46	 148,651,570	3,212,559	+1.18	c5 dxc5 Bd5 Bd4 Rg8 Kh2 f5 Be2 h6 Be3 Qf7 g3 Kb7 Rff1 Rac8 Rfd1 Rh8 Rf1 g6 h4 g5 fxg5 hxg5 Nxg5 Qg7 Bf4 Ka7 Bf3 Bxf3
    28/45	01:42	 331,217,076	3,232,963	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Ra7 Rc2 Qc8 Bd3 Qf8 Kg2 Qg7 Rcc1 Rf8
    29/45	01:45	 339,680,452	3,231,943	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Qe8 Kg2 Qf7 Kg1 Qg7 Kh2 Rc8 Rc2 Ra7 Rcc1
    30/45	01:56	 377,691,212	3,230,311	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Qe8 Nd2 Rg7 Nf3 Ra7 Bd3 Rg8 Kg2 Qf7 d5 exd5 Bxa7+ Kxa7
    31/45	02:00	 388,144,704	3,228,083	+1.08	h6 Rc1 Rc8 Kh2 f5 Be2 Qf7 Ne1 Rg8 h4 Qe8 Rf1 Rh8 g3 Qd8 Kg1 Rg8 Nf3 g6 Kh2 Qe8 Nd2 Qf7 Nb3 Rc8 Bd3 Rf8 Rc2 Qe8 Rfc1 Qf7 Nc5
    32/45	11:24	2,269,714,410	3,315,227	+1.01	Qf7 Rc1 Rc8 Ne1 Qe8 Kh2 h6 Rf1 Rd8 Nf3 Qf7 g3 f5 Be2 Qg6 Rc5 Rg8 Rc2 Rh8 Bd3 Qh5 Be2 Rg8 Rf2 Qf7 Rf1 Ra7 d5 cxd5 Rfc1 Ka8 Rc7 g5 fxg5 hxg5 Nxg5
    33/45	14:52	2,958,490,585	3,314,155	+0.94	Qf7 Rc1 Rc8 Ne1 Qe8 Kh2 h6 Rf1 Rd8 Rf2 f5 Be2 g6 Nd3 Qg8 Nc5 Qf7 Nd3 h5 Kg1 Ra7 h4 Qh7 Nc5 Ra8 Nd3 Qg7 Nc5 Re8 Nd3 Rh8 Nc5 Qf7 Bd3
    34/45	16:47	3,339,840,376	3,315,270	+0.96	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 Kg1 Ra7 Nc5 Rg8 h4 Qe8 Bf3 Rh8 Rcc2 Ra8 Nd3 Rf8 g3 Qf7 Rf1 Qg7 Rfc1 Rh8 Kg2 Ra7 Rd1 Rf8 Nc5 Qf7 Kg1
    35/48	22:20	4,450,974,489	3,321,387	+1.02	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 h4 Rf8 Kg1 Ra7 Bf3 Rh8 Nc5 Rh7 g3 Ra8 Nd3 Rh8 Nc5 Rg8 Kg2 Rd8 Kg1 Rc8 Rfc2 Rf8 Kf2 Qe8 Kg1 Qd8 Nd3
    36/48	23:06	4,605,679,930	3,322,771	+1.03	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 h4 Rf8 Kg1 Qg7 Bf3 Rg8 Nc5 Rh8 Rfc2 Ra7 Nd3 Qf7 Rf2 Rh7 d5 exd5 Bxa7+ Kxa7 Nc5 Rh8 Re1 g5 hxg5 hxg5 fxg5 Qg7
    37/48	25:49	5,162,889,337	3,331,212	+1.01	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 h4 Rf8 Kg1 Qg7 Bf3 Rg8 Nc5 Ra7 Rfc2 Qf7 Be2 Bc8 Bd3 Qg7 Rf2 Rf8 Nb3 Qg8 Be2 Bb7 Nc5 Qg7 Nb3 Ka8 Bd3 Bc8
    38/48	30:47	6,158,784,095	3,333,322	+0.99	h6 Rc1 Rc8 Ne1 Qe8 Kh2 f5 Be2 g6 Nd3 Qf7 Nc5 Rg8 Bd3 Ra7 Rg1 h5 Rc2 Rh8 Rgc1 Qg7 Kg1 h4 Be2 Re8 Bd3 Rc8 Kh2 Rf8 Bf2 Rh8 Be3 Rd8 Kh1 Qf7 Bf2 Qh7 Kg1
    39/53	44:32	8,978,489,913	3,359,144	+1.01	h6 Rc1 Rc8 Ne1 f5 Be2 Qf7 Nd3 Rg8 h4 Ra7 Bf3 g6 Ne1 Rf8 Nd3 Ka8 Nc5 Rg8 Nd3 Qg7 Nc5 Kb8 Rfc2 Rh8 Nd3 Ka8 Nc5 Qf7 Nd3 Rc8 Nc5 Kb8 Nd3 Rg8 Nc5 Rh8 Nd3 Ra8
    40/59	3:42:44	45,566,784,615	3,409,471	+0.87	h6 Rc1 Rc8 Ne1 f5 Be2 Qf7 Nd3 Rg8 h4 Re8 Bf3 Ra7 Nc5 Ba8 Rfc2 Rc8 Re2 Qg6 Kf2 Qe8 Rec2 Qf7 Kg1 Rf8 Nd3 Bb7 Re2 Ra8 Nc5 Qe8 Rec2 Qd8 Bh5 Rg8 d5 cxd5 Bf3 Qe8 Nxd7+ Qxd7
    41/63	4:55:24	60,547,258,950	3,415,963	+0.87	Qf7 Rc1 Rc8 Ne1 g6 Rfc2 c5 Rxc5 Rxc5 Rxc5 Ra7 Rc1 Bd5 Be2 Qf8 Rc3 h6 Nd3 Bc4 Rc1 Qd8 Rf1 f5 d5 exd5 Rf2 Bxd3 Bxa7+ Kxa7 Bxd3 Qh4 Kf1 d4 Be2 Kb7 Bf3+ Kb8 Be2 Ka7 Rf3 h5 Rf2 Qd8 Bd3 Kb7
    42/63	10:36:51	131,075,709,831	3,430,256	+0.90	c5 dxc5 Bd5 Re1 Kb7 Bd2 Rac8 Nd4 Re8 Be2 Qg6 exf6 Qxf6 Bc3 Qg6 Kh2 Qf7 Kg1 g6 Bd3 Rf8 Nc2 g5 f5 h5 Ree2 Qh7 Re3 Qh6 f6 Rf7 Rg3 Rg8 Ne3 Bc6 Rf1 g4 Bd4 Rh8 Bc3 Qf8 hxg4 h4
   9/2/2016 5:34:00 AM, Time for this analysis: 11:00:01, Rated time: 11:00:00

0 of 1 matching moves
9/2/2016 5:34:01 AM, Total time: 11:00:05 AM
Rated time: 11:00:00 = 39600 Seconds
Give it a bit of a horizon boost: c5 dc5 Bd5 Kh2 (instead of Re1)

[d]rk1r4/3p2pp/p2Ppp2/PpPbP2q/1P3P2/3BBN1P/5RPK/R7 b - - 0 3

if anyone, only white has advantage here
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User avatar
Nordlandia
Posts: 2821
Joined: Fri Sep 25, 2015 9:38 pm
Location: Sortland, Norway

Re: Fascinating imbalance

Post by Nordlandia »

This is perhaps the most famous example
of this particular NQE. Even after all these
years and extensive investigation, it’s still
possible to find some new twists in the
analysis, but the consensus view remains
that Black can draw with best play. I’m not
100% convinced. After reading through
these notes, what opinion will you have?!
[pgn][Event "EXPERT-PC, Slow 120m+60s"]
[Site "EXPERT-PC"]
[Date "2016.09.08"]
[Round "1"]
[White "Stockfish 040916 64 BMI2"]
[Black "Komodo 10.1 64-bit"]
[Result "1-0"]
[Annotator "0.86;0.85"]
[SetUp "1"]
[FEN "6k1/6p1/4p1n1/3p4/2b3P1/5P1R/1B5K/8 b - - 0 1"]
[PlyCount "102"]
[TimeControl "7200+60"]

1... Nf4 {0.85/39 142 Both last book move} 2. Rh4 {0.86/43 129} Nd3 {0.85/40
149} 3. Ba3 {0.86/49 140} e5 {0.95/43 242} 4. Kg3 {0.86/49 40} e4 {0.95/46 320
(Nf4)} 5. fxe4 {1.26/51 87} dxe4 {0.96/46 79} 6. g5 {1.26/54 45} Bd5 {0.97/47
74} 7. Bd6 {1.26/61 153} Kf7 {0.98/47 105} 8. Bf4 {1.26/61 43} Be6 {1.02/49
273 (Kg6)} 9. Bd2 {1.26/60 176 (Rh1)} Bf5 {1.04/50 200} 10. Rh8 {1.26/62 47} g6
{1.06/50 148 (Ke6)} 11. Rb8 {1.26/67 158 (Ra8)} Ke6 {1.07/47 102 (Ke7)} 12. Rd8
{1.26/66 168 (Bf4)} Kf7 {1.07/50 122 (Ke7)} 13. Rd5 {1.26/65 179 (Be3)} Ke6 {
1.08/49 765} 14. Ra5 {1.26/64 33 (Rb5)} Ne5 {1.12/49 391 (Kd6)} 15. Kf4 {
1.27/62 181} Nd3+ {1.11/47 364} 16. Ke3 {1.27/64 56} Ne5 {1.13/46 143} 17. Ra2
{1.34/66 1380 (Ra6+)} Nf3 {1.13/31 81 (Kd5)} 18. Kf4 {1.34/59 177} Nd4 {
1.14/51 278 (Kd5)} 19. Be3 {1.34/66 150} Nc6 {1.15/51 131 (Nf3)} 20. Rb2 {
1.34/67 223} Ne7 {1.15/50 120 (Kd5)} 21. Rb6+ {1.34/68 161} Kd5 {1.15/50 98}
22. Bf2 {1.34/58 33 (Bg1)} Nc6 {1.11/49 140} 23. Rb5+ {1.34/65 238} Kd6 {
1.09/45 97} 24. Rb2 {1.34/66 46 (Bc5+)} Kd5 {1.09/50 131} 25. Rd2+ {1.34/66
235 (Bb6)} Kc4 {1.10/43 85} 26. Bb6 {1.34/67 101 (Rd6)} Nb4 {1.09/44 145 (Kb5)}
27. Ke5 {1.60/47 169 (Rd4+)} Kc3 {1.17/45 933 (Nd3+)} 28. Rd1 {2.03/47 127}
Nd3+ {1.42/43 201} 29. Kd6 {2.07/54 136} Nf4 {1.51/42 212} 30. Rf1 {2.07/57 123
} Nh5 {1.64/46 251} 31. Be3 {2.14/59 211} Kd3 {1.67/44 106} 32. Re1 {2.14/61 52
} Ng7 {1.67/45 98} 33. Bf4 {2.14/67 176 (Ke5)} Ne6 {1.68/48 179} 34. Ke5 {
2.14/67 85} Nc5 {1.71/50 275} 35. Kd5 {2.14/68 198} Ne6 {1.72/51 565} 36. Re3+
{2.14/67 38} Kc2 {1.75/44 55} 37. Re2+ {2.15/71 489} Kc3 {1.75/29 68 (Kd3)} 38.
Bc1 {2.29/68 952} Kd3 {1.75/28 57 (Nc7+)} 39. Ra2 {2.44/66 633} Ng7 {1.75/29
105} 40. Ke5 {2.44/57 44} e3 {1.81/47 84} 41. Ra3+ {3.71/64 959} Ke2 {1.83/47
54} 42. Rxe3+ {3.78/54 90} Kf2 {1.86/46 103} 43. Bd2 {3.85/51 64} Ne6 {1.88/44
107} 44. Rc3 {3.85/44 19 (Rb3)} Ng7 {1.90/49 246} 45. Ra3 {4.47/52 266 (Rb3)}
Ke2 {1.90/48 74 (Nh5)} 46. Bb4 {4.62/48 57} Ne6 {1.92/46 91 (Nh5)} 47. Be7 {
4.90/45 51} Kf2 {1.92/47 65 (Ng7)} 48. Ra5 {12.64/39 67 (Rb3)} Ng7 {1.92/46
205 (Kf3)} 49. Kf6 {128.37/69 49 (Bd6)} Nh5+ {250.00/47 201} 50. Kf7 {128.38/
70 25} Kf3 {250.00/53 102} 51. Bd6 {128.39/80 81} Kg4 {250.00/57 88 (Bc2)} 52.
Ra4+ {128.41/69 94} 1-0

[/pgn]Lichess express analysis - https://en.lichess.org/JDKvyfiD[/b]
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