Deep Tactics: Pilnik-Najdorf (Mar Del Plata) 1942

[Marc MP]

[D]r1b3k1/pp3p2/2nb2p1/6Bp/2BqpN1Q/8/PP3PPP/5RK1 w - - 0 1

The combination is truly amazing... and been played during the game. Can your favorite engine find it? (Be patient!)

[Mike S.]

Did you analyse the alternative later in the game, to 21...Kf8, 21...e3 (suggested by Shredder9 and others)? This seems to be a big improvement which may raise some doubt about White's 19th move.

[Marc MP]

Did you analyse the alternative later in the game, to 21...Kf8, 21...e3 (suggested by Shredder9 and others)? This seems to be a big improvement which may raise some doubt about White's 19th move.

Hmmm... I did not analyzed carefully enough I guess. I thought black was lost after this but I now realize black isn't yet. Did you find a better move for white on move 19th?

[PauloSoare]

[D]r1b3k1/pp3p2/2nb2p1/6Bp/2BqpN1Q/8/PP3PPP/5RK1 w - - 0 1

The combination is truly amazing... and been played during the game. Can your favorite engine find it? (Be patient!)

Dificult for me, Marc. All engines that I tryed likes Nxh5, but the
evaluation don´t increase. So I tryed to analyse with
computer help, but in almos all variants I go for an endgame
in wich whites seemed better, but very dificult.
Below Hiarcs Mp 11.1 analyses in an Athlon 2 cores 3800+, HT=1024:

New game
r1b3k1/pp3p2/2nb2p1/6Bp/2BqpN1Q/8/PP3PPP/5RK1 w - - 0 1

Analysis by HIARCS 11.1 MP UCI:

1.Bb3 Bg4 2.Bf6 Be5 3.Qg5 Bxf6 4.Qxg6+ Bg7 5.Bxf7+ Kf8
= (0.07) Depth: 9/22 00:00:00 259kN
1.Bb3 Bxf4 2.Qxf4 Bf5 3.Qc7 Qd7 4.Qf4 Qd3 5.Qc7 Qd7
= (0.00) Depth: 9/22 00:00:00 318kN
1.b3
= (0.00) Depth: 9/22 00:00:00 409kN
1.b3 Bxf4 2.Qxf4 Bf5 3.Qc7 Qd7 4.Qxd7 Bxd7 5.Rd1 Bf5 6.Bf6
= (0.04) Depth: 9/24 00:00:01 521kN
1.b3 Bxf4 2.Qxf4 Bf5 3.Qc7 Qd7 4.Qf4 Qd4
= (0.00) Depth: 10/27 00:00:01 877kN
1.Nd5
= (0.00) Depth: 10/27 00:00:03 1501kN
1.Nd5 Bxh2+
= (0.00) Depth: 10/27 00:00:03 1745kN
1.Nd5 Qxc4 2.Nf6+ Kg7 3.Ne8+ Kh7 4.Nxd6 Qxa2 5.Qxe4 Be6 6.Bf6 Qd5 7.Qf4
= (0.20) Depth: 11/32 00:00:06 3503kN
1.Nd5 Qxc4 2.Nf6+ Kg7 3.Ne8+ Kg8 4.Nxd6 Qxa2 5.Bf6 Bg4 6.Nxe4 Qd5 7.f3 Bf5
= (0.13) Depth: 12/34 00:00:10 5437kN
1.Nd5 Qxc4 2.Nf6+ Kg7 3.Ne8+ Kg8 4.Nxd6 Qxa2 5.Qxe4 Qe6 6.Qf4 Ne5 7.Bf6 Qxd6 8.Bxe5
² (0.28) Depth: 13/34 00:00:19 10557kN
1.Nd5
= (0.03) Depth: 14/35 00:00:26 14240kN
1.Nd5 Qxc4 2.Nf6+ Kg7 3.Ne8+ Kg8 4.Nxd6 Qxa2 5.Qxe4 Qe6 6.Qf4 Ne5 7.Bf6 Ng4 8.Bd4
= (0.03) Depth: 14/36 00:00:34 18927kN
1.b3
= (0.04) Depth: 14/37 00:00:49 26609kN
1.b3 Bxf4 2.Qxf4 Bf5 3.h3 Re8
= (0.04) Depth: 14/37 00:00:51 27548kN
1.Bb3
= (0.05) Depth: 14/37 00:01:08 36098kN
1.Bb3 Bxf4 2.Qxf4 Bf5 3.Qc7 Qd7 4.Qxd7 Bxd7 5.Rd1 Bf5 6.Bd5 Re8
= (0.05) Depth: 14/37 00:01:09 36660kN
1.Bb3 Bxf4 2.Qxf4 Bf5 3.Rd1 Qe5 4.Qxe5 Nxe5 5.Rc1 Rc8
= (-0.10) Depth: 15/38 00:01:53 61541kN
1.b3
= (-0.09) Depth: 15/39 00:02:06 68677kN
1.b3 Bxf4 2.Qxf4 Bf5 3.Qc7 Qd7 4.Qf4 Qd4
= (0.00) Depth: 15/39 00:02:20 76055kN
1.Nd5
= (0.00) Depth: 15/39 00:02:37 85113kN
1.Nd5
² (0.30) Depth: 15/39 00:03:01 98682kN
1.Nd5 Be5 2.b3 Kg7 3.Rb1 e3 4.Qxd4 Bxd4 5.Bxe3
² (0.34) Depth: 15/39 00:03:39 119mN
1.Nd5 Be5 2.b3 Kg7 3.Rb1 e3 4.Qxd4 Nxd4 5.Bxe3 Nf5 6.Bc5 b6 7.f4 Bxf4 8.Nxf4 bxc5 9.Nd3 Be6 10.Bxe6 fxe6
² (0.35) Depth: 16/41 00:05:34 180mN
1.Nd5 Be5 2.b3 Be6 3.Be3 Qb2 4.Qxe4 Rd8 5.a4 Kg7 6.Rd1 Bf5 7.Qh4 Bc2 8.Bc1 Qa2
= (0.25) Depth: 17/42 00:09:58 316mN
1.Nxh5
² (0.26) Depth: 17/44 00:15:24 492mN
1.Nxh5
² (0.60) Depth: 17/45 00:19:30 625mN
1.Nxh5 gxh5 2.Bf6 Qc5 3.Rd1 e3 4.Rxd6 exf2+ 5.Kf1 Bg4 6.Qg5+ Qxg5 7.Bxg5 Ne5 8.Bb3 Be6 9.Bxe6 fxe6 10.Rxe6 Nd3 11.Rg6+ Kh7 12.Rd6 Nxb2 13.Kxf2 Rf8+
± (0.75) Depth: 17/45 00:24:37 798mN
1.Nxh5
± (1.00) Depth: 18/45 00:36:17 1177mN
1.Nxh5 gxh5 2.Bf6 Qc5 3.Rd1 e3 4.b4 Nxb4
± (1.00) Depth: 18/46 00:38:49 1270mN

(Soares, Residencia 27.04.2007)

[PauloSoare]

Did you analyse the alternative later in the game, to 21...Kf8, 21...e3 (suggested by Shredder9 and others)? This seems to be a big improvement which may raise some doubt about White's 19th move.

Hmmm... I did not analyzed carefully enough I guess. I thought black was lost after this but I now realize black isn't yet. Did you find a better move for white on move 19th?

Please, the game.

Thanks,

Paulo Soares

[Marc MP]

Did you analyse the alternative later in the game, to 21...Kf8, 21...e3 (suggested by Shredder9 and others)? This seems to be a big improvement which may raise some doubt about White's 19th move.

Hmmm... I did not analyzed carefully enough I guess. I thought black was lost after this but I now realize black isn't yet. Did you find a better move for white on move 19th?

Please, the game.

Thanks,

Paulo Soares

Hi Paulo,

The game is here: http://www.chessgames.com/perl/chessgame?gid=1100857

[PauloSoare]

Did you analyse the alternative later in the game, to 21...Kf8, 21...e3 (suggested by Shredder9 and others)? This seems to be a big improvement which may raise some doubt about White's 19th move.

Hmmm... I did not analyzed carefully enough I guess. I thought black was lost after this but I now realize black isn't yet. Did you find a better move for white on move 19th?

Please, the game.

Thanks,

Paulo Soares

Hi Paulo,

The game is here: http://www.chessgames.com/perl/chessgame?gid=1100857

Thanks, Marc, but my Windows is blocking the game and don´t alow that
the actvex x runs.
I will search the game in another place.

Paulo Soares

[Marc MP]

Did you analyse the alternative later in the game, to 21...Kf8, 21...e3 (suggested by Shredder9 and others)? This seems to be a big improvement which may raise some doubt about White's 19th move.

Hmmm... I did not analyzed carefully enough I guess. I thought black was lost after this but I now realize black isn't yet. Did you find a better move for white on move 19th?

Please, the game.

Thanks,

Paulo Soares

Hi Paulo,

The game is here: http://www.chessgames.com/perl/chessgame?gid=1100857

Thanks, Marc, but my Windows is blocking the game and don´t alow that
the actvex x runs.
I will search the game in another place.

Paulo Soares

Its too bad you can't use chessgames.com! Here is the pgn:

[Event "Mar del Plata"]
[Site "Mar del Plata"]
[Date "1942.??.??"]
[EventDate "?"]
[Round "13"]
[Result "1-0"]
[White "Herman Pilnik"]
[Black "Miguel Najdorf"]
[ECO "B15"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "63"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.c3 Bd6
7.Bd3 O-O 8.Qh5 g6 9.Qh4 c5 10.Ne2 Nc6 11.Bh6 f5 12.Bg5 Qb6
13.O-O cxd4 14.cxd4 Re8 15.Bc4 h5 16.Rae1 Re4 17.Nf4 Qxd4
18.Rxe4 fxe4 19.Nxh5 gxh5 20.Bf6 Qc5 21.Rd1 Kf8 22.b4 Nxb4
23.Qg3 Bg4 24.Rxd6 Nd3 25.Bxd3 Qc1+ 26.Bf1 Rc8 27.h3 Qxf1+
28.Kh2 Qc1 29.hxg4 hxg4 30.Qxg4 Qh6+ 31.Kg3 Rc3+ 32.f3 1-0

Have a good day,

[Mike S.]

Hi Paolo, sorry for not providing the PGN (meanwhile, Marc has posted it). But I think maybe it isn't an ActiveX problem, but a Java problem. I think the chessgames.com games pages use MyChessViewer by default, which requires Java to be installed.

Anyway, they offer also a "view PGN" link from where it should be possible to copy & paste ASCII, like this:

http://www.chessgames.com/perl/nph-ches ... id=1100857

For me, with Java installed and customized internet security configurations, chessgames.com is a major and great chess resource. Hopefully you can adjust your configuration - if you like and if you don't think it's too risky - to use it, too. The registration for the basic features is free.

[Vinvin]

7 seconds for Rybka WinFinder 2.2 mp 32-bit on an AMD 4200+ :

Analysis by Rybka WinFinder 2.2 mp 32-bit:
...
1.Cxg6 Dxc4 2.Dxh5 Dd4 3.Td1 fxg6
= (-0.15) Profondeur: 8 00:00:01 122kN
1.Cd5
= (-0.11) Profondeur: 8 00:00:02 122kN
1.Cd5
= (-0.15) Profondeur: 8 00:00:02 122kN
1.Cd5 Dxc4 2.Cf6+ Rh8 3.Cxh5 Fg4 4.Tc1
= (-0.11) Profondeur: 8 00:00:02 267kN
1.Cd5 Fe5 2.Ce3 Cb4 3.Td1
= (0.00) Profondeur: 9 00:00:03 339kN
1.Cd5 Fe5 2.Ce3 Cb4 3.Td1 Cd3
= (0.00) Profondeur: 10 00:00:04 541kN
1.Cxh5
= (0.03) Profondeur: 10 00:00:07 541kN
1.Cxh5
= (0.00) Profondeur: 10 00:00:07 541kN
1.Cxh5
= (0.00) Profondeur: 10 00:00:07 541kN
1.Cxh5
= (0.23) Profondeur: 10 00:00:07 541kN
1.Cxh5 gxh5 2.Ff6 Dc5 3.Td1 Fe7 4.Fd5 Fxf6 5.Dxf6 Fe6
= (0.23) Profondeur: 10 00:00:08 1051kN
1.Cxh5 gxh5 2.Ff6 Dc5 3.Td1 Rf8 4.b4 Cxb4 5.Df4 Cd3
= (0.23) Profondeur: 11 00:00:12 1525kN
1.Cxh5 gxh5 2.Ff6 Dc5 3.Td1 Rf8 4.b4 Cxb4 5.Df4 Cd3 6.Fg7+ Rxg7
= (0.23) Profondeur: 12 00:00:19 2533kN
1.Cxh5 gxh5 2.Ff6 Dc5 3.Td1 Rf8 4.b4 Cxb4 5.Df4 Cd3 6.Fg7+ Rxg7 7.Dxf7+ Rh6
= (0.23) Profondeur: 13 00:00:40 5190kN
1.Cxh5 gxh5 2.Ff6 Dc5 3.Td1 e3 4.Txd6 exf2+ 5.Rf1 Fg4 6.Dg5+ Dxg5 7.Fxg5 Ce5
² (0.62) Profondeur: 14 00:01:45 13808kN