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Subject: Re: The Baron at CCT-6 (long post)

Author: Peter Berger

Date: 02:25:26 02/03/04

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On February 03, 2004 at 02:55:08, Richard Pijl wrote:

Thanks for your interesting tournament report.
A few comments on the Bringer-Baron game squeezed inside:

>
>In the next game against Bringer, the Baron struggled after the opening phase to
>equalize. When Bringer recaptured a knight with 31.fxe3? Baron's king attack
>chances rised.

I think white's 31. fxe3?! indeed blows the opening edge and I really don't
understand this move either. An equal position is reached then.

Bringer played another dubious move later with 36. Nxa6?! that allowed Baron to
seize the initiative for real:

Der Bringer - thebaron(C)
[D]4r2k/2p4p/pn1p4/5pq1/1N1Pr3/1P2PQ1P/4R1P1/4R1K1 w - - 0 1

>[D] 4r2k/7p/8/2Np2q1/3r1p2/1P2nQ1P/4R1P1/2R4K b - - 1 41
>
>This looks like the critical position. The Baron has Der Bringer cornered, but
>it is unsuccessful in finding the correct continuation. It looks like Rc8 offers
>some chances, but I'm not sure about that. Anyone got an idea? }

It is not the only time in this tournament where Bringer reached a position with
very little air to breathe, but being quite relaxed itself, scoring in an
unrealistic way. Though black has a clear edge here, the more reasonable looking
evaluation of other chessprograms reveals no clear idea how to really make
progress in this case. White's position might just hold, after tough defense.


>
>Qe7 42. Qf2 Rc8 43. Ree1 Kg8 44.
>Qb2 Qg7 45. b4 Re8 46. b5 Qg3 47. Nd7 Rb4 48. Qd2 Rd4 49. Qe2 Qg7 50. Nc5
>Qg6 51. Qf3 Kh8 52. Rg1 Qh6 53. Rb1 Qb6?
>
>[D] 4r2k/7p/1q6/1PNp4/3r1p2/4nQ1P/6P1/1R4RK w - - 15 54
>
>{ This is a vital mistake. Besides that, the purpose of Qb6 escapes me. The
>correct moves for white are not difficult to find, but it is not immediately
>clear that black loses here. }

Qb6? is a bad move indeed, but it blocks the free pawn and attacks the knight?!
I am not sure about this position anyway. Though programs still see an advantage
for black white has definitely made some progress.

Bringer (as many other programs I assume) realized that it was getting very real
winning chances after 53. ..Qb6? with 54. Qh5 and its score jumped up to +1.

I can only subscribe to your report on the end of the game. It was clear from
the engine output, that for both engines the pretty knight and rook sac where
just some ordinary follow-up, while human spectators watched stunned. Though not
too difficult for engines, I thought the end of the game was really pretty and
might have earned some "!" when played by a human master.

Here is the Bringer PGN on the game, giving its own opinion:

[Event "ICS Match (Partie in 45 Minuten + 10 Sekunde(n) pro Zug)"]
[Site "unbekannt"]
[Date "2004.02.01"]
[Round "1"]
[White "Der Bringer"]
[Black "thebaron(C)"]
[Result "1-0"]
[WhiteElo "2283"]
[BlackElo "2453"]

1. e4  e5  2. Nf3  Nc6  3. Bb5  a6  4. Ba4  Nf6  5. O-O  Be7
6. Re1  b5  7. Bb3  O-O  8. h3  d6  9. c3  Nd7  10. d4  Bf6  11. a4
Na5  12. Bc2  { 0.00 0:00:00.0 } Bb7  13. Na3  { 0.00 0:00:00.0 }
bxa4  14. Bxa4  { 0.16/15 0:01:45.7 } exd4  15. cxd4  { 0.27/14 0:01:21.4 (PB:
0:01:21.3 ) }
Nc6  16. Bf4  { 0.27/14 0:01:16.0 (PB: 0:01:15.9 ) } Ne7  17. e5  { 0.67/14
0:01:50.5 }
Ng6  18. exf6  { 0.65/14 0:02:10.4 (PB: 0:00:19.1 ) } Nxf4  19. fxg7  { 0.52/13
0:01:13.4 (PB: 0:01:13.3 ) }
Kxg7  20. Nc4  { 0.46/13 0:02:11.7 (PB: 0:00:44.0 ) } Kh8  21. Na5  { 0.30/12
0:01:02.7 (PB: 0:01:02.6 ) }
Bd5  22. Bc6  { 0.35/13 0:01:17.5 (PB: 0:01:17.4 ) } Rg8  23. Bxd5  { 0.35/13
0:01:41.3 (PB: 0:00:35.2 ) }
Nxd5  24. Nc6  { 0.33/12 0:00:50.0 (PB: 0:00:49.9 ) } Qf6  25. Nh2  { 0.34/12
0:00:56.0 (PB: 0:00:55.9 ) }
Nb8  26. Na5  { 0.29/13 0:01:00.2 (PB: 0:01:00.1 ) } Nd7  27. Ng4  { 0.40/13
0:01:18.3 }
Qg5  28. Qf3  { 0.39/13 0:01:00.2 } N7b6  29. Nc6  { 0.34/13 0:02:54.5 (PB:
0:00:36.6 ) }
f5  30. Ne3  { 0.36/14 0:02:06.3 } Nxe3  31. fxe3  { 0.28/14 0:01:37.8 (PB:
0:00:18.2 ) }
Nc4  32. Re2  { 0.27/14 0:01:35.8 (PB: 0:01:35.6 ) } Rae8  33. Rae1  { 0.16/14
0:01:04.2 (PB: 0:00:31.1 ) }
Re4  34. b3  { 0.37/14 0:00:47.2 } Nb6  35. Nb4  { 0.19/14 0:01:22.3 (PB:
0:00:20.8 ) }
Rge8  36. Nxa6  { 0.11/13 0:01:26.0 } Nd5  37. Rc1  { 0.03/12 0:00:38.6 (PB:
0:00:38.5 ) }
Nxe3  38. Rxc7  { 0.00/13 0:00:56.4 } Rxd4  39. Rc1  { 0.01/12 0:00:44.8 }
d5  40. Nc5  { 0.00/12 0:00:55.3 } f4  41. Kh1  { 0.00/12 0:01:01.2 }
Qe7  42. Qf2  { 0.04/12 0:00:38.8 } Rc8  43. Ree1  { 0.16/13 0:02:21.4 }
Kg8  44. Qb2  { 0.20/13 0:01:09.7 } Qg7  45. b4  { 0.12/12 0:00:52.5 (PB:
0:00:52.4 ) }
Re8  46. b5  { 0.10/12 0:00:34.2 } Qg3  47. Nd7  { 0.01/11 0:01:23.2 (PB:
0:01:23.0 ) }
Rb4  48. Qd2  { 0.02/11 0:02:24.4 } Rd4  49. Qe2  { 0.08/12 0:00:58.9 }
Qg7  50. Nc5  { 0.04/13 0:01:41.5 (PB: 0:01:41.4 ) } Qg6  51. Qf3  { 0.04/12
0:00:44.6 (PB: 0:00:44.5 ) }
Kh8  52. Rg1  { 0.02/12 0:00:30.7 (PB: 0:00:24.2 ) } Qh6  53. Rb1  { 0.27/12
0:00:53.5 }
Qb6  54. Qh5  { 0.93/13 0:00:38.6 } Re7  55. Ra1  { 0.97/12 0:00:34.5 (PB:
0:00:04.4 ) }
Qxc5  56. Ra8+  { 2.16/10 0:01:06.8 } Kg7  57. g3  { 2.14/10 0:00:40.4 (PB:
0:00:40.3 ) }
f3  58. Qg5+  { 3.13/11 0:01:54.4 (PB: 0:01:54.3 ) } Kf7  59. Rf1  { 2.82/11
0:00:47.8 }
Ke6  60. Qxe3+  { 5.63/11 0:02:34.4 } Kd6  61. Qh6+  { 6.33/11 0:00:33.0 }
Kd7  62. Rfa1  { 7.40/11 0:01:35.6 (PB: 0:01:35.5 ) } Rc4  63. b6  { 8.88/9
0:00:26.6 }
Ra4  64. R8xa4  { 15.44/9 0:03:46.5 }
{thebaron resigns}1-0



>
>54. Qh5 Re7 55. Ra1! {
>
[D]7k/4r2p/1q6/1PNp3Q/3r1p2/4n2P/6P1/R5RK b - - 18 55
>
>I know, I've been generous with diagrams, but this position deserves one. A
>knight sac out of the blue. It is not difficult to see for engines that this
>will at least draw for white. But in fact white is winning here. Black has no
>option than to take the knight }
>
>Qxc5 56. Ra8+ Kg7 57. g3 f3 58. Qg5+ Kf7 {
>
>[D] R7/4rk1p/8/1Pqp2Q1/3r4/4npPP/8/6RK w - - 2 59
>
>Can't help it: Another Diagram :-). Bringer offers the rook here: Rf1!
>Peter and I were completely lost and could not think of anything else than that
>there must have been a forced mate somewhere }
>
>59. Rf1! Ke6 60. Qxe3+ Kd6 61. Qh6+ Kd7 62. Rfa1
>Rc4 63. b6 Ra4 64. R8xa4
>
>{thebaron resigns} 1-0
>
>The final position is a mate is 8 moves.
>



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