Nezhmetdinov - Chernikov - 1962 - Queen Sac

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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by yanquis1972 »

youre making a claim that goes against both prior human consensus & against engine evaluation. it's a bit silly to get defensive when asked for concrete evidence to support the claim...

in the line you gave, there seems to be a blunder on move 15; Kg7 should equalize.
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Lyudmil Tsvetkov
Posts: 6052
Joined: Tue Jun 12, 2012 12:41 pm

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by Lyudmil Tsvetkov »

yanquis1972 wrote:youre making a claim that goes against both prior human consensus & against engine evaluation. it's a bit silly to get defensive when asked for concrete evidence to support the claim...

in the line you gave, there seems to be a blunder on move 15; Kg7 should equalize.
that is one thing I can not do: analyse every possible line.

that is why I expect help/suggestions/refutations from the community.

move 15 involves precisely Kg7.

I know both positions hide much bigger advantage for white, but one has to sit for hours to find the best moves. this is a complex mg position.
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reflectionofpower
Posts: 1669
Joined: Fri Mar 01, 2013 5:28 pm
Location: USA

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by reflectionofpower »

reflectionofpower wrote:
Lyudmil Tsvetkov wrote:here is Nezhmetdinov's finest: a win against the world champion.
and Nezhmetdinov was not even a grandmaster!

[pgn][Event "USSR Championship 1961 b"]
[Site "Baku URS"]
[Date "1961.12.08"]
[EventDate "1960.??.??"]
[Round "15"]
[Result "1-0"]
[White "Rashid Gibiatovich Nezhmetdinov"]
[Black "Mikhail Tal"]
[ECO "B84"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "57"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 Nbd7
7.O-O a6 8.f4 Qc7 9.g4 b5 10.a3 Bb7 11.Bf3 Nc5 12.Qe2 e5
13.Nf5 g6 14.fxe5 dxe5 15.Nh6 Ne6 16.Bg2 Bg7 17.Rxf6 Bxf6
18.Nd5 Qd8 19.Qf2 Nf4 20.Bxf4 exf4 21.e5 Bxe5 22.Re1 f6
23.Nxf6+ Qxf6 24.Qd4 Kf8 25.Rxe5 Qd8 26.Rf5+ gxf5 27.Qxh8+ Ke7
28.Qg7+ Ke6 29.gxf5+ 1-0


[/pgn]
Don't forget Lev Polugaevsky vs Rashid Nezhmetdinov 1958. Said to be one of the greatest games of the 20th century. A definite immortal from Nezhmetdinov. A very aggressive game.

[pgn][Event "RSFSR-ch 18th"]
[Site "Sochi"]
[Date "1958.??.??"]
[Round "?"]
[White "Polugaevsky, Lev"]
[Black "Nezhmetdinov, Rashid"]
[Result "0-1"]
[ECO "A53"]
[Annotator "RR"]
[PlyCount "66"]
[EventDate "1958.??.??"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "URS"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]

1. d4 {Cette partie est trés connue à cause de l'attaque fameuse menée par les
Noirs sur le K Blanc} Nf6 2. c4 d6 3. Nc3 e5 4. e4 exd4 5. Qxd4 Nc6 6. Qd2 g6
7. b3 Bg7 8. Bb2 O-O 9. Bd3 Ng4 10. Nge2 (10. Nf3 $142 Nge5 11. Be2 Nxf3+ 12.
Bxf3 Nd4 13. h4 $5 Nxf3+ 14. gxf3 Qf6 15. O-O-O Be6 16. f4 $16) 10... Qh4 (
10... Nce5 11. Bc2 Bh6 $36 (11... Qh4)) 11. Ng3 Nge5 12. O-O f5 13. f3 Bh6 14.
Qd1 f4 15. Nge2 g5 16. Nd5 g4 17. g3 fxg3 18. hxg3 Qh3 19. f4 Be6 $1 {Début du
festival tactique} 20. Bc2 (20. Nxc7 {[%cal Gc7e6,Gc7a8]} Bxf4 $1 21. Rxf4 (21.
gxf4 g3 $19 {[%csl Gf2,Gh2]}) (21. Nxf4 Qxg3+) 21... Rxf4 22. Bxe5 Nxe5 23.
Nxa8 (23. Nxe6 Rf6 {[%cal Gf6e6,Gf6h6]}) 23... Rf7 {[%csl Ra8]} (23... Rf6 24.
Nc7)) 20... Rf7 21. Kf2 Qh2+ 22. Ke3 Bxd5 23. cxd5 Nb4 24. Rh1 (24. a3) 24...
Rxf4 $3 25. Rxh2 Rf3+ 26. Kd4 Bg7 $3 {[%csl Rd4][%cal Gg7d4] << Personne ne
voit les combinaisons comme Nezhmetdinov >> Mikhail Botvinnik} 27. a4 c5+ 28.
dxc6 bxc6 29. Bd3 Nexd3+ 30. Kc4 d5+ 31. exd5 cxd5+ 32. Kb5 Rb8+ 33. Ka5 Nc6+
0-1[/pgn]
They both respected one another too and went on to becoming life long in the documentary I watched friends.
"Without change, something sleeps inside us, and seldom awakens. The sleeper must awaken." (Dune - 1984)

Lonnie
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by yanquis1972 »

Lyudmil Tsvetkov wrote:
yanquis1972 wrote:youre making a claim that goes against both prior human consensus & against engine evaluation. it's a bit silly to get defensive when asked for concrete evidence to support the claim...

in the line you gave, there seems to be a blunder on move 15; Kg7 should equalize.
that is one thing I can not do: analyse every possible line.

that is why I expect help/suggestions/refutations from the community.

move 15 involves precisely Kg7.

I know both positions hide much bigger advantage for white, but one has to sit for hours to find the best moves. this is a complex mg position.
my mistake; at move 13, g5 is a blunder.

i'm trying to do your work for you & not making progress, which is the point. the burden of proof is on you here. with optimal moves, i see zero reason, other than your claim, to think that Qxf6 leads to anything better than a draw.

[pgn][Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b2rk1/pp1ppp1p/5bp1/q7/3nP2Q/1BN1B3/PPP2PPP/R4RK1 w - - 0 12"]
[PlyCount "14"]

12. Qxf6 Ne2+ 13. Nxe2 exf6 14. Nf4 d6 15. Nd5 Be6 16. Nxf6+ Kg7 17. Bd4 Bxb3 18.axb3 Qd2 *[/pgn]
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Dann Corbit
Posts: 12870
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by Dann Corbit »

The reason that engines seem to have a hard time with this problem is that taking the queen with exf6 is not the correct response after the queen captures the bishop.

Position after QxB:
[d]r1b2rk1/pp1ppp1p/5Qp1/q7/3nP3/1BN1B3/PPP2PPP/R4RK1 b - -

3 best Responses:

Code: Select all

 31/50	07:13	1,161,925,068	2,694,437	-6.51	Qxc3 Bxd4 exf6 Bxc3 b5 Rfd1 a5 a4 bxa4 Bxa4 Bb7 f3 Bc6 Bxf6 Rfc8 Bc3 Ra7 Kf2 h6 Rd4 Kf8 Bb3 Rb8 Bc4 Bb5 b3 Bxc4 Rxc4 Ra6 Bxa5 Ke8 Rc5 Rc6 Rxc6
 32/50	07:13	1,161,925,068	2,694,437	-0.41	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qb5 a4 Qa6 Nxf6+ Kg7 Rfd1 h5 Rd3 Be6 Nxh5+ Kf8 Bxe6 fxe6 Nf4 Kf7 Rh3 e5 Nd5 Kg8 Nc7 Qe2 Nxa8 Rxa8 Rd3 Rd8 Bxe5 Qxc2 Rad1 Qxa4 Rd4 Qc2 Bxd6 Re8 f3 Qxb2 Rb4
 32/50	07:13	1,161,925,068	2,694,437	 0.00	Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7
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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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by yanquis1972 »

i think surely the eval/move order is 'upside down' there?
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Dann Corbit
Posts: 12870
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by Dann Corbit »

yanquis1972 wrote:i think surely the eval/move order is 'upside down' there?
That is the order in the log file for Arena with SF Matefinder running with MPV 3.

More output:

Code: Select all

FEN: r1b2rk1/pp1ppp1p/5Qp1/q7/3nP3/1BN1B3/PPP2PPP/R4RK1 b - - 0 1 

Matefinder-x64-crusty:
  1/1	00:02	         297	22,846	-4.41	Nxb3
  1/1	00:02	         297	22,846	+1.19	exf6 Bxd4
  1/1	00:02	         297	22,846	+1.33	Ne2+ Nxe2 exf6
---------------------------------------------------------------------------
  2/2	00:02	      13,764	474,620	-4.15	Nxb3 axb3 exf6 Rxa5 b6 Raa1
  2/2	00:02	      13,764	474,620	+0.93	exf6 Bxd4
  2/2	00:02	      13,764	474,620	+1.43	Ne2+ Nxe2
---------------------------------------------------------------------------
  3/3	00:02	      24,669	666,729	-4.39	Nxb3 axb3 exf6
  3/3	00:02	      24,669	666,729	+0.88	Ne2+ Nxe2 exf6
  3/3	00:02	      24,669	666,729	+0.93	exf6 Bxd4 d6
---------------------------------------------------------------------------
  4/4	00:02	      30,161	701,418	-4.39	Nxb3 axb3 exf6 Rxa5 d6
  4/4	00:02	      30,161	701,418	+0.86	exf6 Bxd4 Qa6 Nd5
  4/4	00:02	      30,161	701,418	+0.88	Ne2+ Nxe2 exf6 Rfd1
---------------------------------------------------------------------------
  5/5	00:02	      35,425	753,723	-4.39	Nxb3 axb3 exf6 Rxa5 d6
  5/5	00:02	      35,425	753,723	+0.81	exf6 Bxd4 d6 Nd5 Be6 Bxf6
  5/5	00:02	      35,425	753,723	+1.29	Ne2+ Nxe2 exf6 Rfd1 Qd8
---------------------------------------------------------------------------
  6/6	00:02	      44,774	799,535	-4.39	Nxb3 axb3 exf6 Rxa5 d6 Rfa1
  6/6	00:02	      44,774	799,535	+0.81	exf6 Bxd4 d6 Nd5 Be6 Bxf6
  6/6	00:02	      44,774	799,535	+1.10	Ne2+ Nxe2 exf6 Rfd1 Qd8 Rd4
---------------------------------------------------------------------------
  7/9	00:02	      76,163	952,037	-4.36	Nxb3 axb3 Qxa1 Qxe7 Qa5 Nd5 Qd8
  7/9	00:02	      76,163	952,037	+0.18	exf6 Bxd4 b6 Nd5 Qa6 Bxf6 Re8 Ne7+ Kf8
  7/9	00:02	      76,163	952,037	+1.24	Ne2+ Nxe2 exf6 Rfd1 d6 Rxd6 Bg4
---------------------------------------------------------------------------
  8/11	00:02	      87,001	988,647	-4.36	Nxb3 axb3 Qxa1 Qxe7 Qa5 Nd5 Qd8 Bh6
  8/11	00:02	      87,001	988,647	+0.20	exf6 Bxd4 d6 Nd5 Kg7 Bxf6+ Kh6 Rfd1 Re8
  8/11	00:02	      87,001	988,647	+1.10	Ne2+ Nxe2 exf6 Rfd1 d6 Nc3 Be6 Bxe6 fxe6
---------------------------------------------------------------------------
  9/13	00:02	     108,860	1,056,893	-4.36	Nxb3 axb3 Qxa1 Qxe7 Qa5 Nd5 Qd8 Bh6 Qxe7 Nxe7+ Kh8
  9/13	00:02	     108,860	1,056,893	-0.10	exf6 Bxd4 d6 Nd5 Kg7 Bxf6+ Kh6 Be7 Re8 Bxd6 Qd8
  9/13	00:02	     108,860	1,056,893	+1.17	Ne2+ Nxe2 exf6 Rfd1 d6 Rxd6 Qe5 Rd4 Re8
---------------------------------------------------------------------------
 10/18	00:02	     170,680	1,015,952	-4.23	Nxb3 axb3 Qxa1 Qxe7 Qa5 Nd5 Qd8 Bh6 d6 Nf6+ Kh8 Bxf8 Qxe7 Bxe7 Be6 Bxd6
 10/18	00:02	     170,680	1,015,952	+0.04	exf6 Bxd4 Kg7 Nd5 d6 c3 Be6 Bxf6+ Kh6 Be7 f5 Bxf8+ Rxf8
 10/18	00:02	     170,680	1,015,952	+1.14	Ne2+ Nxe2 exf6 Nc3 Qd8 Bd4 Re8 Nd5 Re6 Nc3 b6
---------------------------------------------------------------------------
 11/18	00:02	     212,854	1,080,477	-4.23	Nxb3 axb3 Qxa1 Qxe7 Qa5 Nd5 Qd8 Bh6 d6 Nf6+ Kh8 Bxf8 Qxe7
 11/18	00:02	     212,854	1,080,477	 0.00	exf6 Bxd4 Kg7 Nd5 d6 Nxf6 Kh6 Be3+ Kg7 Bd4
 11/18	00:02	     212,854	1,080,477	+1.14	Ne2+ Nxe2 exf6 Nc3 Qd8 Bd4 Re8 Nd5 Re6 Nc3 b6 Bxe6 dxe6
---------------------------------------------------------------------------
 12/21	00:02	     310,228	1,231,063	-4.37	Nxb3 axb3 Qxa1 Qxe7 Qa5 Nd5 Qd8 Bh6 a5 Nf6+ Kh8 Bxf8 Qxe7 Bxe7 Ra6 Ra1 Re6
 12/21	00:02	     310,228	1,231,063	 0.00	exf6 Bxd4 Kg7 Nd5 d6 Nxf6 Kh6 Be3+ Kg7 Bd4
 12/21	00:02	     310,228	1,231,063	+1.07	Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 a5 Rd6 Ra6 Rad1 Kg7 R6d2 d6
---------------------------------------------------------------------------
 13/21	00:02	     658,459	1,650,273	-4.83	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Bd4 Rfc8 Ne7+ Kg7 Nxc8 Rxc8 Bc3 Ra8 Rfa1 a6 Rd1
 13/21	00:02	     658,459	1,650,273	-0.41	exf6 Bxd4 Kg7 Nd5 d6 Bxf6+ Kh6 Be7 Be6 Bxd6 Kg7 Bxf8+ Rxf8 Rfe1 Qc5 Rad1 Rd8 c3
 13/21	00:02	     658,459	1,650,273	+0.97	Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Rd6 Qe7 Rad1 Rd8 Ba4 Kg7 f3
---------------------------------------------------------------------------
 14/27	00:02	   1,035,164	1,949,461	-4.89	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Rfa1 Rac8 Ne7+ Kg7 Nxc8 Rxc8 c4 a6 Rd1 Rd8
 14/27	00:02	   1,035,164	1,949,461	-0.06	exf6 Bxd4 Kg7 Nd5 d6 Bxf6+ Kh6 Be7 Be6 Bxd6 Rfe8 Bb4 Qd8 Bd2+ Kg7 Bc3+ Kh6 Nf6 Rh8
 14/27	00:02	   1,035,164	1,949,461	+1.05	Ne2+ Nxe2 exf6 Nc3 Kg7 Rad1 Rd8 Rd6 Qe5 Rfd1 b6 a3 Qe7 Ba4 Ba6 Rxd7 Rxd7
---------------------------------------------------------------------------
 15/27	00:03	   1,916,781	1,864,572	-5.09	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Rfa1 Rfc8 Nb6 Rab8 Nxc8 Rxc8 c4 a6 Rd1 Rc6 Bd4 Kg7
 15/27	00:03	   1,916,781	1,864,572	 0.00	exf6 Bxd4 Kg7 Nd5 d6 Bc3 Qc5 Nxf6 Kh6 Bd2+ Kg7 Bc3
 15/27	00:03	   1,916,781	1,864,572	+0.93	Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Rd6 Qe7 Rad1 Rd8 Ba4 Re8 a3 Rd8 Bb5 Rb8 Ba4 g5 Bb5 Kg7 f4 h6
---------------------------------------------------------------------------
 16/28	00:03	   2,855,542	2,023,771	-4.91	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Rfa1 Rfc8 Nb6 Rab8 Nxc8 Rxc8 c4 a6 Rd1 Rc6 Bf4 Rb6
 16/28	00:03	   2,855,542	2,023,771	-0.06	exf6 Bxd4 Re8 Nd5 Re6 Nxf6+ Rxf6 Bxf6 Qb6 e5 d5 Rfd1 Be6 Bxd5 Qxb2 Rab1 Qxc2 Rbc1 Qa4 Bxb7 Re8
 16/28	00:03	   2,855,542	2,023,771	+0.90	Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Rad1 d6 Nd5 Re6 Nc3 Bd7 Bxe6 fxe6 Be3 Qc7 Rd3 Qc6
---------------------------------------------------------------------------
 17/30	00:04	   4,047,505	2,057,704	-5.24	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Bd4 Bxd5 Rxd5 Rfc8 Bc3 Rc6 Rfd1 Kf8 b4 Rac8 f3 a6 Kf2 Ke7 b5 axb5
 17/30	00:04	   4,047,505	2,057,704	 0.00	exf6 Bxd4 Re8 Nd5 Re6 Nxf6+ Rxf6 Bxf6 Qb6 e5 a5 Rfd1 a4 Bd5 Qxb2 Rab1 Qc3 Be4 Qc4 Bd5 Qc3
 17/30	00:04	   4,047,505	2,057,704	+0.90	Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Rad1 d6 Nd5 Re6 Nc3 Bd7 Bxe6 fxe6 Be3 Qb4 Rb1 Qc4 f3
---------------------------------------------------------------------------
 18/30	00:04	   5,089,725	2,176,956	-5.22	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Bd4 Bxd5 Rxd5 Rfe8 f3 f5 exf5 Re2 fxg6 fxg6 Rf2 Rae8 Rxe2 Rxe2
 18/30	00:04	   5,089,725	2,176,956	 0.00	exf6 Bxd4 Re8 Nd5 Re6 Nxf6+ Rxf6 Bxf6 Qb6 e5 a5 Rfd1 a4 Bd5 Qxb2 Rab1 Qc3 Be4 Qc4 Bd5 Qc3
 18/30	00:04	   5,089,725	2,176,956	+0.93	Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Rad1 d6 Nd5 Re6 Bc3 Qc5 Bb4 Qb5 Ba3 Qa5 Nc3 Re8 Rd5 b5 Rxb5 Qd8 Rd1 Bd7 Rxd6
---------------------------------------------------------------------------
 19/33	00:05	   6,994,495	2,209,253	-5.34	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Bd4 Bxd5 Rxd5 Rfe8 f3 Re6 Rd1 f5 exf5 gxf5 Rd2 Rc8 Bxa7 Re1+ Kf2
 19/33	00:05	   6,994,495	2,209,253	 0.00	exf6 Bxd4 Re8 Nd5 Re6 Nxf6+ Rxf6 Bxf6 Qb6 e5 a5 Rfd1 a4 Bd5 Qxb2 Rab1 Qc3 Be4 Qc4 Bd5 Qc3
 19/33	00:05	   6,994,495	2,209,253	+1.03	Ne2+ Nxe2 exf6 Nc3 Kg7 Nd5 Re8 Bd4 Re6 Rad1 d6 Bc3 Qc5 Bd4 Qc6 Nc3 a5 Ba4 Qc7 f4 Bd7 f5 Bxa4 fxe6 Bxc2 Rxf6 fxe6 Rxe6+ Kg8
---------------------------------------------------------------------------
 20/33	00:06	   9,345,203	2,245,363	-5.40	Nxb3 axb3 exf6 Rxa5 d6 Nd5 Be6 Bd4 Bxd5 Rxd5 Rae8 f3 f5 exf5 Re2 c4 Rfe8 fxg6 fxg6 Rxd6 Rd2 Rd7 Ree2
 20/33	00:06	   9,345,203	2,245,363	 0.00	exf6 Bxd4 Re8 Nd5 Re6 Nxf6+ Rxf6 Bxf6 Qb6 e5 a5 Rfd1 a4 Bd5 Qxb2 Rab1 Qc3 Be4 Qc4 Bd5 Qc3
 20/33	00:06	   9,345,203	2,245,363	+0.87	Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Nd5 Re6 Rad1 d6 Bc3 Qc5 Bb4 Qb5 a4 Qc6 Nc3 Rxe4 Nxe4 Qxe4 Bc3 Be6 Rxd6 Re8 Re1
---------------------------------------------------------------------------
 21/37	00:13	  29,401,947	2,601,021	-5.92	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 a4 Bd5 Ra5 Rfd1 Re8 f3 d6 b3 Rc5 bxa4 Be6 Rab1 Bxd5 Rxd5 Rxc2 Rxb7
 21/37	00:13	  29,401,947	2,601,021	-0.25	exf6 Bxd4 Rd8 Nd5 d6 Bc3 Qa6 Bxf6 Bd7 Rfd1 h6 Rd4 Qa5 Bxd8 Rxd8 Nf6+ Kg7 Rxd6 Bc6 Rxd8 Qxd8 Nd5 f5 Rd1 fxe4 c3 Bxd5 Rxd5 Qc7 Rd4 Qe7
 21/37	00:13	  29,401,947	2,601,021	+0.74	Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 d6 Nd5 Qd8 Bd4 Re6 Nc3 Bd7 f4 a5 f5 Re5 Bxe5 dxe5 Rd6 Ra6 Rxa6 bxa6 Rd1 Qb6+ Kh1
---------------------------------------------------------------------------
 22/40	00:18	  40,962,342	2,574,790	-5.92	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 a4 Bd5 Ra6 Bc3 d6 Rfd1 Be6 Bxb7 Rb6 Bd5 a3 b3 Rc8 Bd4 Bxd5 exd5 Rb7 c4 Re8
 22/40	00:18	  40,962,342	2,574,790	-0.33	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qa6 Bxf6 Bd7 Rfd1 Be6 Nc7 Qb6 Nxe6 fxe6 Bxe6+ Kf8 Bxd8 Rxd8 Bb3 Re8 Re1 Qc6 f3 Kg7
 22/40	00:18	  40,962,342	2,574,790	+0.59	Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 b5 a3 Kg7 Rd6 Rb8 Bd4 Re6 Bxe6 fxe6 e5 f5 Bc5 Qc7 b4 g5 Re1 g4 Rdd1 Rb7 h3 gxh3 gxh3
---------------------------------------------------------------------------
 23/40	00:26	  62,815,512	2,633,001	-6.08	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 a4 Bd5 Ra6 e5 b5 Rfd1 Re8 Bf3 Rb6 Rd4 Bb7 Bg4 Bc6 Rad1 Rb7 Bxd7 Bxd7 Rxd7 Rxd7 Rxd7
 23/40	00:26	  62,815,512	2,633,001	-0.33	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qa6 Bxf6 Bd7 Rfd1 Bc6 Nc7 Qe2 Re1 Qg4 Nxa8 Rxa8 f3 Qf4 Bd4 b5 Rad1 a5 Be3 Qf6 Bb6 Qe7 Bd5 Bxd5
 23/40	00:26	  62,815,512	2,633,001	+0.70	Ne2+ Nxe2 exf6 Nc3 Qd8 Nd5 Re8 Bd4 Re6 f4 Rc6 f5 g5 Rad1 b5 Nb4 Bb7 Nxc6 Bxc6 Rfe1 a5 c3 a4 Bd5 Bxd5 exd5 Kg7 g4 a3
---------------------------------------------------------------------------
 24/45	00:33	  83,646,858	2,643,538	-5.90	Nc6 Qh4 Qh5 Qxh5 gxh5 f4 b6 f5 Ba6 Rf3 Kh8 Rd1 d6 Rh3 f6 Rxh5 Rab8 Rh4 Ne5 Rd4 b5 Nd5 Rb7 Nf4 Rc8 Ne6 Nc4
 24/45	00:33	  83,646,858	2,643,538	-0.34	exf6 Bxd4 d6 Nd5 Rd8 Nxf6+ Kg7 Bc3 Qa6 Rad1 Be6 Nd5+ Kf8 Nc7 Qb6 Nxe6+ fxe6 Bxe6 Re8 Bd5 Rac8 Rd3 Re7 Rf3+ Ke8 Bf6 Rd7 Rb3 Qa6 c4 Rdc7 Be6 Qxa2
 24/45	00:33	  83,646,858	2,643,538	+0.43	Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Bd5 Rb8 Bf4 Ba6 Bxb8 Qxb8 Bb3 Rd8 Rd4 Kg7 Rad1 d6 f4 Qc7 Kh1 h6 e5 fxe5 fxe5 d5 Rxd5 Rxd5 Rxd5 Bc4 Bxc4 Qxc4 Kg1
---------------------------------------------------------------------------
 25/45	00:51	 131,451,663	2,646,713	-6.03	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 Ra6 e5 a4 Bd5 Re8 Rad1 b5 Bf3 h5 Rd2 b4 Rfd1 Rb6 Rd6 Rb8 h3 Rb5 R1d5 Rxd5 Bxd5
 25/45	00:51	 131,451,663	2,646,713	-0.35	exf6 Bxd4 Rd8 Nd5 d6 Bc3 Qa6 Nxf6+ Kg7 Rfe1 b5 Nd5+ Kf8 Nc7 Qc6 Nxa8 Be6 Rad1 Qxa8 Bf6 Rd7 Bd5 Qc8 c3 Kg8 Rd2 a5 Red1 Qc5 Bg5 Bxd5 Rxd5 Qc4 e5 Qe2 Bc1 b4 cxb4 axb4
 25/45	00:51	 131,451,663	2,646,713	+0.34	Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Kg7 Nd5 Re6 Rad1 b5 f4 Bb7 f5 Rxe4 Bxf6+ Kf8 fxg6 hxg6 Bg5 Re2 Ne3 d5 Rxd5 Qc7 Rxb5 f5 Bc4 Rd2 Bh6+ Ke8 Bf4 Qg7 Rf2 Rxf2 Kxf2 Qd4 Kg3
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 26/46	01:12	 188,631,412	2,691,811	-6.19	Qxc3 Bxd4 exf6 Bxc3 Re8 f3 a5 Ba4 Re6 Rfd1 b6 Rd5 Bb7 Rxd7 Bc6 Bxc6 Rxc6 Rad1 b5 a3 Re8 R1d6 Rxd6 Rxd6 f5 exf5 b4 axb4 axb4 Bxb4
 26/46	01:12	 188,631,412	2,691,811	-0.38	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qb5 a4 Qa6 Bxf6 Bd7 Rfd1 Bc6 Nc7 Qe2 Re1 Qh5 Nxa8 Rxa8 c3 Rb8 Rad1 Qa5 Rxd6 Bxa4 Red1 Bxb3 Rd8+ Rxd8 Rxd8+ Qxd8 Bxd8 b6 Bf6 Bc4 Be5
 26/46	01:12	 188,631,412	2,691,811	+0.17	Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 d6 f3 Qc7 Bf2 a5 h3 Rb8 Rd2 Rc8 Be3 Kf7 Ne2 d5 exd5 Bxd5 Nc3
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 27/46	01:19	 207,084,908	2,676,518	-6.15	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 b5 a4 bxa4 Bd5 Ra6 Bc3 d6 Rxa4 Be6 Rd1 Rb8 f3 Kf8 Kf2 Ke7 b4 Bxd5 exd5 Kd7 Rxa5 Rxa5 bxa5
 27/46	01:19	 207,084,908	2,676,518	-0.35	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qa6 Nxf6+ Kg7 Rfe1 b5 Nd5+ Kf8 Nc7 Qc6 Nxa8 Be6 Rad1 Qxa8 Bf6 Rd7 Bd5 Qc8 c3 Kg8 Rd2 a5 Red1 Qc5 Bg5 Bxd5 Rxd5 Qc4 e5 Qe2 Bc1 b4 cxb4 axb4 exd6
 27/46	01:19	 207,084,908	2,676,518	+0.10	Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 Bc5 a5 Rd6 Bb7 b4 axb4 Bxb4 Bc6 Rd3 Qb7 Rad1 Kg7 Rh3
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 28/46	01:56	 304,718,000	2,656,698	-6.33	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 a4 Bd5 Re8 Rfd1 Ra6 Bc3 d6 f3 a3 b3 Rb6 Bd4 Rb5 Bf6 Rc5 c4 h6 Bc3 Rxd5 Rxd5 Be6 Rxd6 g5
 28/46	01:56	 304,718,000	2,656,698	-0.35	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qa6 Nxf6+ Kg7 Rfe1 b5 Nd5+ Kf8 Nc7 Qc6 Nxa8 Be6 Rad1 Qxa8 Bf6 Rd7 Bd5 Qc8 c3 Kg8 Rd2 a5 Red1 Qc5 Rd4 Qb6 R4d3 Qc7 Bg5 Bxd5 Rxd5 Qc4
 28/46	01:56	 304,718,000	2,656,698	+0.13	Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 f3 d6 Bf2 a5 h3 Kf7 Rd2 Rf8 Rad1 b4 axb4 axb4 Ne2 Bb5 Nd4
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 29/47	02:46	 435,964,313	2,650,351	-6.35	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 a4 Bd5 Ra7 Bd4 Ra5 c4 d6 Rac1 Re8 f3 Re7 b4 axb3 axb3 Be6 Ra1 Bxd5 Rxa5 Bc6 Kf2 Re8 Rfa1 h5 Ra7 b5
 29/47	02:46	 435,964,313	2,650,351	-0.50	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qa6 Nxf6+ Kg7 Rfe1 Be6 Nd5+ Kf8 Nc7 Qb6 Nxe6+ fxe6 Bxe6 Re8 Bd5 Rac8 Rad1 Re7 Re3 Rxc3 bxc3 Kg7 g3 Qc5 c4 Qa5 a3 Qa4 Rb3 b6 Kg2 Qd7 f4 Re8
 29/47	02:46	 435,964,313	2,650,351	 0.00	Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 Nd7+ Kg8 Nf6+ Kf8 Nxh7+ Ke7 Nf6 Bxb3 cxb3 Kf8 Nd7+ Ke7 Nf6
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 30/49	04:25	 697,780,521	2,653,410	-6.52	Qxc3 Bxd4 exf6 Bxc3 a5 Bxf6 b5 a4 bxa4 Bd5 Ra6 Bc3 d6 Rxa4 Be6 Bxe6 fxe6 Rfa1 d5 exd5 exd5 Rxa5 Rxa5 Rxa5 Rd8 Ra4 Rd7 f3 Kf8 Kf2 Kf7 Rf4+ Ke6 Rf6+ Ke7 Ra6 d4
 30/49	04:25	 697,780,521	2,653,410	-0.44	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qa6 Nxf6+ Kg7 Rfe1 Be6 Nd5+ Kf8 Nc7 Qb6 Nxe6+ fxe6 Bxe6 Re8 Bd5 Rac8 Rad1 Rxc3 bxc3 Qa5 Rd3 Kg7 g3 b5 Rf3 Re7 Kg2 Qd8 Rb1 Qd7 h4 a5
 30/49	04:25	 697,780,521	2,653,410	 0.00	Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7
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 31/49	06:51	1,101,350,827	2,688,785	-6.51	Qxc3 Bxd4 exf6 Bxc3 b5 Rfd1 a5 a4 bxa4 Bxa4 Bb7 f3 Bc6 Bxf6 Rfc8 Bc3 Ra7 Kf2 h6 Rd4 Kf8 Bb3 Rb8 Bc4 Bb5 b3 Bxc4 Rxc4 Ra6 Bxa5 Ke8 Rc5 Rc6 Rxc6
 31/49	06:51	1,101,350,827	2,688,785	-0.36	exf6 Bxd4 d6 Nd5 Rd8 Bc3 Qa6 Nxf6+ Kg7 Rfe1 Be6 Nd5+ Kf8 Nc7 Qb6 Nxe6+ fxe6 Bxe6 Re8 Bd5 Rac8 Rad1 Re7 Re3 Rxc3 bxc3 Kg7 g3 Qb5 Red3 a5 Kg2 a4 f4 Qb2 R1d2 b6
 31/49	06:51	1,101,350,827	2,688,785	 0.00	Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Nd5 Kg7 Rad1 Rc6 Rd3 d6 Nxf6 Be6 Nd7+ Kg8 Nf6+ Kg7
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Top
Dann Corbit
Posts: 12870
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by Dann Corbit »

Deeper analysis:

Code: Select all

Searching: r1b2rk1/pp1ppp1p/5Qp1/q7/3nP3/1BN1B3/PPP2PPP/R4RK1 b - - 0 1
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0

 1   +1.34   00:00     146  Ne2+ Nxe2 exf6 
 2   +1.44   00:00     357  Ne2+ Nxe2 
 3   +0.94   00:00     696  exf6 Bxd4 d6 
 4   +0.88   00:00    1261  Ne2+ Nxe2 exf6 Rfd1 
 5   +1.29   00:00    1986  Ne2+ Nxe2 exf6 Rfd1 Qd8 
 6   +1.11   00:00    2827  Ne2+ Nxe2 exf6 Rfd1 Qd8 Rd4 
 7   +1.24   00:00    6219  Ne2+ Nxe2 exf6 Rfd1 d6 Rxd6 Bg4 
 8   +1.10   00:00    8019  Ne2+ Nxe2 exf6 Rfd1 d6 Nc3 Be6 Bxe6 fxe6 
 9   +1.18   00:00   12766  Ne2+ Nxe2 exf6 Rfd1 d6 Rxd6 Qe5 Rd4 Re8 
10   +1.15   00:00   20486  Ne2+ Nxe2 exf6 Nc3 Qd8 Bd4 Re8 Nd5 Re6 Nc3 b6 
11   +1.15   00:00   29475  Ne2+ Nxe2 exf6 Nc3 Qd8 Bd4 Re8 Nd5 Re6 Nc3 b6 Bxe6 dxe6 
12   +1.08   00:00   52339  Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 a5 Rd6 Ra6 Rad1 Kg7 R6d2 d6 
13   +0.97   00:00  139259  Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Rd6 Qe7 Rad1 Rd8 Ba4 Kg7 f3 
14   +1.06   00:00  232598  Ne2+ Nxe2 exf6 Nc3 Kg7 Rad1 Rd8 Rd6 Qe5 Rfd1 b6 a3 Qe7 Ba4 Ba6 Rxd7 Rxd7 
15   +0.94   00:01  461875  Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Rd6 Qe7 Rad1 Rd8 Ba4 Re8 a3 Rd8 Bb5 Rb8 Ba4 g5 Bb5 Kg7 f4 h6 
16   +0.91   00:01  695696  Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Rad1 d6 Nd5 Re6 Nc3 Bd7 Bxe6 fxe6 Be3 Qc7 Rd3 Qc6 
17   +0.91   00:01   1012K  Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Rad1 d6 Nd5 Re6 Nc3 Bd7 Bxe6 fxe6 Be3 Qb4 Rb1 Qc4 f3 
18   +0.93   00:02   1269K  Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Rad1 d6 Nd5 Re6 Bc3 Qc5 Bb4 Qb5 Ba3 Qa5 Nc3 Re8 Rd5 b5 Rxb5 Qd8 Rd1 Bd7 Rxd6 
19   +1.03   00:03   1740K  Ne2+ Nxe2 exf6 Nc3 Kg7 Nd5 Re8 Bd4 Re6 Rad1 d6 Bc3 Qc5 Bd4 Qc6 Nc3 a5 Ba4 Qc7 f4 Bd7 f5 Bxa4 fxe6 Bxc2 Rxf6 fxe6 Rxe6+ Kg8 
20   +0.87   00:03   1854K  Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Nd5 Re6 Rad1 d6 Bc3 Qc5 Bb4 Qb5 a4 Qc6 Nc3 Rxe4 Nxe4 Qxe4 Bc3 Be6 Rxd6 Re8 Re1 
20   +0.87   00:03   1897K  Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Nd5 Re6 Rad1 d6 Bc3 Qc5 Bb4 Qb5 a4 Qc6 Nc3 Rxe4 Nxe4 Qxe4 Bc3 Be6 Rxd6 Re8 Re1 
20   +0.87   00:04   2320K  Ne2+ Nxe2 exf6 Nc3 Kg7 Bd4 Re8 Nd5 Re6 Rad1 d6 Bc3 Qc5 Bb4 Qb5 a4 Qc6 Nc3 Rxe4 Nxe4 Qxe4 Bc3 Be6 Rxd6 Re8 Re1 
21   +0.74   00:04   2790K  Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 d6 Nd5 Qd8 Bd4 Re6 Nc3 Bd7 f4 a5 f5 Re5 Bxe5 dxe5 Rd6 Ra6 Rxa6 bxa6 Rd1 Qb6+ Kh1 
21   +0.74   00:07   4500K  Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 d6 Nd5 Qd8 Bd4 Re6 Nc3 Bd7 f4 a5 f5 Re5 Bxe5 dxe5 Rd6 Ra6 Rxa6 bxa6 Rd1 Qb6+ Kh1 
21   +0.74   00:11   7425K  Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 d6 Nd5 Qd8 Bd4 Re6 Nc3 Bd7 f4 a5 f5 Re5 Bxe5 dxe5 Rd6 Ra6 Rxa6 bxa6 Rd1 Qb6+ Kh1 
22   +0.59   00:11   7620K  Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 b5 a3 Kg7 Rd6 Rb8 Bd4 Re6 Bxe6 fxe6 e5 f5 Bc5 Qc7 b4 g5 Re1 g4 Rdd1 Rb7 h3 gxh3 gxh3 
22   +0.59   00:11   7812K  Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 b5 a3 Kg7 Rd6 Rb8 Bd4 Re6 Bxe6 fxe6 e5 f5 Bc5 Qc7 b4 g5 Re1 g4 Rdd1 Rb7 h3 gxh3 gxh3 
22   +0.59   00:15  10342K  Ne2+ Nxe2 exf6 Nc3 Re8 Rad1 b5 a3 Kg7 Rd6 Rb8 Bd4 Re6 Bxe6 fxe6 e5 f5 Bc5 Qc7 b4 g5 Re1 g4 Rdd1 Rb7 h3 gxh3 gxh3 
23   +0.70   00:20  13849K  Ne2+ Nxe2 exf6 Nc3 Qd8 Nd5 Re8 Bd4 Re6 f4 Rc6 f5 g5 Rad1 b5 Nb4 Bb7 Nxc6 Bxc6 Rfe1 a5 c3 a4 Bd5 Bxd5 exd5 Kg7 g4 a3 
23   +0.70   00:21  14299K  Ne2+ Nxe2 exf6 Nc3 Qd8 Nd5 Re8 Bd4 Re6 f4 Rc6 f5 g5 Rad1 b5 Nb4 Bb7 Nxc6 Bxc6 Rfe1 a5 c3 a4 Bd5 Bxd5 exd5 Kg7 g4 a3 
23   +0.70   00:23  15787K  Ne2+ Nxe2 exf6 Nc3 Qd8 Nd5 Re8 Bd4 Re6 f4 Rc6 f5 g5 Rad1 b5 Nb4 Bb7 Nxc6 Bxc6 Rfe1 a5 c3 a4 Bd5 Bxd5 exd5 Kg7 g4 a3 
24   +0.43   00:24  16367K  Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Bd5 Rb8 Bf4 Ba6 Bxb8 Qxb8 Bb3 Rd8 Rd4 Kg7 Rad1 d6 f4 Qc7 Kh1 h6 e5 fxe5 fxe5 d5 Rxd5 Rxd5 Rxd5 Bc4 Bxc4 Qxc4 Kg1 
24   +0.43   00:27  18384K  Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Bd5 Rb8 Bf4 Ba6 Bxb8 Qxb8 Bb3 Rd8 Rd4 Kg7 Rad1 d6 f4 Qc7 Kh1 h6 e5 fxe5 fxe5 d5 Rxd5 Rxd5 Rxd5 Bc4 Bxc4 Qxc4 Kg1 
24   +0.43   00:31  20881K  Ne2+ Nxe2 exf6 Nc3 Qd8 Rfd1 b6 Bd5 Rb8 Bf4 Ba6 Bxb8 Qxb8 Bb3 Rd8 Rd4 Kg7 Rad1 d6 f4 Qc7 Kh1 h6 e5 fxe5 fxe5 d5 Rxd5 Rxd5 Rxd5 Bc4 Bxc4 Qxc4 Kg1 
25   +0.35   00:41  28120K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Kg7 Nd5 Re6 Rad1 b5 f4 Bb7 f5 Rxe4 Bxf6+ Kf8 fxg6 hxg6 Bg5 Re2 Ne3 d5 Rxd5 Qc7 Rxb5 f5 Bc4 Rd2 Bh6+ Ke8 Bf4 Qg7 Rf2 Rxf2 Kxf2 Qd4 Kg3 
25   +0.35   00:46  31303K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Kg7 Nd5 Re6 Rad1 b5 f4 Bb7 f5 Rxe4 Bxf6+ Kf8 fxg6 hxg6 Bg5 Re2 Ne3 d5 Rxd5 Qc7 Rxb5 f5 Bc4 Rd2 Bh6+ Ke8 Bf4 Qg7 Rf2 Rxf2 Kxf2 Qd4 Kg3 
25   +0.35   00:49  33031K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Kg7 Nd5 Re6 Rad1 b5 f4 Bb7 f5 Rxe4 Bxf6+ Kf8 fxg6 hxg6 Bg5 Re2 Ne3 d5 Rxd5 Qc7 Rxb5 f5 Bc4 Rd2 Bh6+ Ke8 Bf4 Qg7 Rf2 Rxf2 Kxf2 Qd4 Kg3 
26   +0.18   00:53  35661K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 d6 f3 Qc7 Bf2 a5 h3 Rb8 Rd2 Rc8 Be3 Kf7 Ne2 d5 exd5 Bxd5 Nc3 
26   +0.18   00:55  37208K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 d6 f3 Qc7 Bf2 a5 h3 Rb8 Rd2 Rc8 Be3 Kf7 Ne2 d5 exd5 Bxd5 Nc3 
26   +0.18   01:10  47389K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 d6 f3 Qc7 Bf2 a5 h3 Rb8 Rd2 Rc8 Be3 Kf7 Ne2 d5 exd5 Bxd5 Nc3 
27   +0.10   01:11  48191K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 Bc5 a5 Rd6 Bb7 b4 axb4 Bxb4 Bc6 Rd3 Qb7 Rad1 Kg7 Rh3 
27   +0.10   01:14  49977K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 Bc5 a5 Rd6 Bb7 b4 axb4 Bxb4 Bc6 Rd3 Qb7 Rad1 Kg7 Rh3 
27   +0.10   01:17  51994K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 Bc5 a5 Rd6 Bb7 b4 axb4 Bxb4 Bc6 Rd3 Qb7 Rad1 Kg7 Rh3 
28   +0.13   01:19  53272K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 f3 d6 Bf2 a5 h3 Kf7 Rd2 Rf8 Rad1 b4 axb4 axb4 Ne2 Bb5 Nd4 
28   +0.13   01:24  56596K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 f3 d6 Bf2 a5 h3 Kf7 Rd2 Rf8 Rad1 b4 axb4 axb4 Ne2 Bb5 Nd4 
28   +0.13   01:54  75887K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Bxe6 fxe6 Bxf6 b5 a3 Bb7 Rfd1 Bc6 Bd4 Qc7 f3 d6 Bf2 a5 h3 Kf7 Rd2 Rf8 Rad1 b4 axb4 axb4 Ne2 Bb5 Nd4 
29   +0.00   02:00  79574K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 Nd7+ Kg8 Nf6+ Kf8 Nxh7+ Ke7 Nf6 Bxb3 cxb3 Kf8 Nd7+ Ke7 Nf6 
29   +0.00   02:05  83245K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 Nd7+ Kg8 Nf6+ Kf8 Nxh7+ Ke7 Nf6 Bxb3 cxb3 Kf8 Nd7+ Ke7 Nf6 
29   +0.00   02:44 108749K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 Nd7+ Kg8 Nf6+ Kf8 Nxh7+ Ke7 Nf6 Bxb3 cxb3 Kf8 Nd7+ Ke7 Nf6 
30   +0.00   02:46 110138K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
30   +0.00   02:53 115023K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
30   +0.00   04:22 174905K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
31   +0.00   04:25 176510K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Nd5 Kg7 Rad1 Rc6 Rd3 d6 Nxf6 Be6 Nd7+ Kg8 Nf6+ Kg7 
31   +0.00   04:30 179694K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Nd5 Kg7 Rad1 Rc6 Rd3 d6 Nxf6 Be6 Nd7+ Kg8 Nf6+ Kg7 
31   +0.00   06:49 277371K  Ne2+ Nxe2 exf6 Nc3 Re8 Bd4 Re6 Nd5 Kg7 Rad1 Rc6 Rd3 d6 Nxf6 Be6 Nd7+ Kg8 Nf6+ Kg7 
32   +0.00   06:50 278026K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
32   +0.00   07:11 292683K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
32   +0.00   10:20 428053K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
33   +0.00   10:35 438892K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
33   +0.00   10:53 452551K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
33   +0.00   14:54 634143K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
34   +0.00   14:55 634801K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
34   +0.00   15:16 650457K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
34   +0.00   19:12 824671K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
35   +0.00   19:14 826003K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
35   +0.00   20:36 888568K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
35   +0.00   20:53 901501K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
36   +0.00   20:57 904478K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
36   +0.00   21:56 950821K  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
36   +0.00   25:29   1111M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 h6 f4 Bc4 Rfe1 Kf8 e5 dxe5 Nd7+ Kg8 Nf6+ Kg7 Rxe5 Qa6 Ree1 Bxb3 Nd7+ Kh7 axb3 Qb5 Nf6+ Kg7 Nd7+ Kh7 
37   +0.00   25:32   1113M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Bxb3 axb3 Qd8 Nd7+ Kh6 Nf6 Kg7 
37   +0.00   29:17   1284M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Bxb3 axb3 Qd8 Nd7+ Kh6 Nf6 Kg7 
37   +0.00   41:11   1823M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Bxb3 axb3 Qd8 Nd7+ Kh6 Nf6 Kg7 
38   +0.00   41:16   1827M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kf8 Nxh7+ Kg8 Nf6+ Kf8 Nh7+ 
38   +0.00   41:32   1840M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kf8 Nxh7+ Kg8 Nf6+ Kf8 Nh7+ 
38   +0.00   42:04   1864M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kf8 Nxh7+ Kg8 Nf6+ Kf8 Nh7+ 
39   +0.00   42:26   1882M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kf8 Nxh7+ Kg8 Nf6+ Kf8 Nh7+ 
39   +0.00   43:46   1943M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kf8 Nxh7+ Kg8 Nf6+ Kf8 Nh7+ 
39   +0.00   54:41   2434M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kf8 Nxh7+ Kg8 Nf6+ Kf8 Nh7+ 
40   +0.00   54:46   2438M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kg7 Nd7+ Kg8 
40   +0.00   57:12   2550M  Ne2+ Nxe2 exf6 Nc3 d6 Nd5 Be6 Nxf6+ Kg7 Bd4 Rfc8 c3 Qa6 f4 Bc4 Nd7+ Kg8 f5 Bxf1 Rxf1 g5 Nf6+ Kg7 Nd7+ Kg8
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: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by Lyudmil Tsvetkov »

yanquis1972 wrote:
Lyudmil Tsvetkov wrote:
yanquis1972 wrote:youre making a claim that goes against both prior human consensus & against engine evaluation. it's a bit silly to get defensive when asked for concrete evidence to support the claim...

in the line you gave, there seems to be a blunder on move 15; Kg7 should equalize.
that is one thing I can not do: analyse every possible line.

that is why I expect help/suggestions/refutations from the community.

move 15 involves precisely Kg7.

I know both positions hide much bigger advantage for white, but one has to sit for hours to find the best moves. this is a complex mg position.
my mistake; at move 13, g5 is a blunder.

i'm trying to do your work for you & not making progress, which is the point. the burden of proof is on you here. with optimal moves, i see zero reason, other than your claim, to think that Qxf6 leads to anything better than a draw.

[pgn][Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r1b2rk1/pp1ppp1p/5bp1/q7/3nP2Q/1BN1B3/PPP2PPP/R4RK1 w - - 0 12"]
[PlyCount "14"]

12. Qxf6 Ne2+ 13. Nxe2 exf6 14. Nf4 d6 15. Nd5 Be6 16. Nxf6+ Kg7 17. Bd4 Bxb3 18.axb3 Qd2 *[/pgn]
this is a totally different line, John; you did not include f4 h5 f5, which is vital.

as told, I can not possibly go through all lines, but, what I know is that:

- black med 2 mistakes/inaccuracies, Qa5, and then Bf6, worth 30cps or more in all, plus white having first move advantage, makes a nice white edge of some 50-60cps, which is winning for white in the mg

- funnily so, my eval assessment of the resulting position after the sac is also some 60cps

- I will not analyse all possible winning lines, especially in the attacking line, as it is too complex and requires sometimes very deep, out-of-the-way moves, but you already have the proof of a very simple white win in the imbalance, no one can refure that.

in the line Peter posted, white simply captures with the bishop on f6, instead of the knigth, and after Kg8(h7), continues with Be7 Be6 (nothing better), and now, not as SF and Komodo would like to go, Bf8, which should still lead to a draw, but Bd6!, and after Bd5 (that knigth is too strong and should be exchanged) Bd5, we get at the imbalance position RRBB + 2 pawns vs QRR, which is easily won.

the line is straightforward, no complications, no side lines, and easily won. what additional prrof do you need that the sac is correct?
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Lyudmil Tsvetkov
Posts: 6052
Joined: Tue Jun 12, 2012 12:41 pm

Re: Nezhmetdinov - Chernikov - 1962 - Queen Sac

Post by Lyudmil Tsvetkov »

again, we get at this position:

[d]r4r2/pp3pkp/6p1/q2B4/4P3/4B3/PPP2PPP/R4RK1 b - - 0 7

or with a bishop on d6, which is easily won for white.

anyone can refute that?

I have seen thousands such positions and know what I am talking about.

btw., if anyone tries to analyse or even implement some imbalance feature based on this position, it will most certainly fail, because:

- above imbalance is won, but, if you remove one pair of rooks, it migth be won, or draw, depending on very small factors

- if you remove another pair of rooks, Q vs BB + 2 pawns is already a draw, or even favours the queen

- so basically, not possible to implement this imbalance, unless some very refined additional features are implemented, like number of pieces for both sides with particular imbalances; the secret here is that it is not just the 2 bishops vs the queen, but also the BB vs the rooks, the RR vs the queen, the R+B vs the queen, and the pawns ve the enemy pieces; with smaller number of pawns migth still be drawn

- white has decisive edge in terms of more compact pawn structure, which weighs into the balance; imbalance without good pawn structure migth be insufficient

- it is also vital how minor pieces and rooks defend among themselves; trying to implement 3 minors vs queen feature, fro example, migth fail, simply because when this configuration is reached, the minors migth be defended or not, in one case the minors will win, in the other the queen migth have the upper hand, and search possibly has no way to distinguish between these, as positions arrived at are quiet

- etc., etc.

however, apart from that, I am 100% certain above position is a white win.

best line of play is Rd8 (to sacrifice the rook for the bishop) Rfd1, followed by a4 and c3, with massive advantage.
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