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Old February 1st 04, 06:31 PM
Gregory Topov
 
Posts: n/a
Default World Record Attempt (PGN)

Gregory Topov" wrote in message
.. .
"Gregory Topov" wrote in message:
ChessBrain's game against GM Nielsen was a draw by repetition, after

some
tactical fireworks in a complicated position. PGN to follow, when it's
available.
Early reports suggest that the number of computers that produced
ChessBrain's moves peaked over 2000.


This is now confirmed. The official web-site states:
"Our World Record attempt is now complete. We had serious technical
difficulties early in the game, but managed to resolve them! The result of
the game was a draw. ChessBrain's new official record now stands at 2070
machines from over 50 different countries." - http://www.chessbrain.net


Here's the official game sco

White: GM Peter Heine Nielsen
Black: ChessBrain

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. Nf3 o-o 6. Be2 e5 7. o-o a5 8. Re1
exd4 9. Nxd4 Bd7 10. Bg5 Nc6 11. Nxc6 Bxc6 12. f3 Qd7 13. Qd2 Rfe8 14. Rac1
h5 15. Kh1 Nh7 16. Bh6 Bxh6 17. Qxh6 Re5 18. Nd5 Rae8 19. Qd2 b6 20. Bd3 Qd8
21. Rf1 Nf6 22. b3 Bb7 23. Qc2 Nd7 24. f4 R5e6 25. e5 c6 26. f5 gxf5 27.
Bxf5 c6xd5 28. Bxe6 e8xe6 29. Rxf7 Kxf7 30. Qh7+ Ke8 31. Qxh5+ Ke7 32. Qg5+
Ke8 33. Qh5+ Ke7 34. Qh7+ 1/2-1/2

Here's some interesting analysis from one observer:
The key moment of the game came at move 26. where white had a number of
complicated choices.
A. 26.Qf2 Re5 27.Qg3+ Kh8 28.Qf4 Kh7 29.exf5 Nc5 30.f6+ Nxd3 31.Qg3 Rg8
32.Qxd3+ Kh8 33.Rf5 Qe8
B. 26.Rxf5 c6 27.Ne3 and white maintains the positional advantage
C. 26.exf5 Re5 27.f6! Bxd5 28.cxd5 Nxf6 (Rxd5? Bc4!) 29.Qf2
C1. ... Rxd5 30.Ba6! Kg7 31.Rc3
C2. ... Kg7 30.Qg3+ Kh8 31.Qf4 Kg7 32.Rc3
Instead the game continued 26.e5 and now it is black that has the difficult
decision.
A. 26. ... Rxe5 27.Bxf5 (27.Rxf5 c6, 27.Qf2 Qg5) Bxd5 28.cxd5 Qg5
B. 26 ... Nxe5 27.Bxf5 (27.Rxf5 Nxd3 28.Qxd3 Re1+) Rh6 28.Qf2 h4
after the game's 26 ... c6 neither side has an interest in avoiding the
draw.


  #2   Report Post  
Old February 1st 04, 09:54 PM
Antonio Torrecillas
 
Posts: n/a
Default World Record Attempt (PGN)

En/na Gregory Topov ha escrit:

White: GM Peter Heine Nielsen
Black: ChessBrain

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. Nf3 o-o 6. Be2 e5 7. o-o a5 8. Re1
exd4 9. Nxd4 Bd7 10. Bg5 Nc6 11. Nxc6 Bxc6 12. f3 Qd7 13. Qd2 Rfe8 14. Rac1
h5 15. Kh1 Nh7 16. Bh6 Bxh6 17. Qxh6 Re5 18. Nd5 Rae8 19. Qd2 b6 20. Bd3 Qd8
21. Rf1 Nf6 22. b3 Bb7 23. Qc2 Nd7 24. f4 R5e6 25. e5 c6 26. f5 gxf5 27.
Bxf5 c6xd5 28. Bxe6 e8xe6 29. Rxf7 Kxf7 30. Qh7+ Ke8 31. Qxh5+ Ke7 32. Qg5+
Ke8 33. Qh5+ Ke7 34. Qh7+ 1/2-1/2

Here's some interesting analysis from one observer:
The key moment of the game came at move 26. where white had a number of
complicated choices.
A. 26.Qf2 Re5 27.Qg3+ Kh8 28.Qf4 Kh7 29.exf5 Nc5 30.f6+ Nxd3 31.Qg3 Rg8
32.Qxd3+ Kh8 33.Rf5 Qe8
B. 26.Rxf5 c6 27.Ne3 and white maintains the positional advantage
C. 26.exf5 Re5 27.f6! Bxd5 28.cxd5 Nxf6 (Rxd5? Bc4!) 29.Qf2
C1. ... Rxd5 30.Ba6! Kg7 31.Rc3
C2. ... Kg7 30.Qg3+ Kh8 31.Qf4 Kg7 32.Rc3
Instead the game continued 26.e5 and now it is black that has the difficult
decision.
A. 26. ... Rxe5 27.Bxf5 (27.Rxf5 c6, 27.Qf2 Qg5) Bxd5 28.cxd5 Qg5
B. 26 ... Nxe5 27.Bxf5 (27.Rxf5 Nxd3 28.Qxd3 Re1+) Rh6 28.Qf2 h4
after the game's 26 ... c6 neither side has an interest in avoiding the
draw.


Those comments are nonsense, ... maybe there are any missing move???

AT

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Old February 2nd 04, 01:45 AM
Gregory Topov
 
Posts: n/a
Default World Record Attempt (PGN)

"Antonio Torrecillas" wrote in message
...
En/na Gregory Topov ha escrit:

White: GM Peter Heine Nielsen
Black: ChessBrain

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. Nf3 o-o 6. Be2 e5 7. o-o a5 8.

Re1
exd4 9. Nxd4 Bd7 10. Bg5 Nc6 11. Nxc6 Bxc6 12. f3 Qd7 13. Qd2 Rfe8 14.

Rac1
h5 15. Kh1 Nh7 16. Bh6 Bxh6 17. Qxh6 Re5 18. Nd5 Rae8 19. Qd2 b6 20. Bd3

Qd8
21. Rf1 Nf6 22. b3 Bb7 23. Qc2 Nd7 24. f4 R5e6 25. e5 c6 26. f5 gxf5 27.
Bxf5 c6xd5 28. Bxe6 e8xe6 29. Rxf7 Kxf7 30. Qh7+ Ke8 31. Qxh5+ Ke7 32.

Qg5+
Ke8 33. Qh5+ Ke7 34. Qh7+ 1/2-1/2

Here's some interesting analysis from one observer:
The key moment of the game came at move 26. where white had a number of
complicated choices.
A. 26.Qf2 Re5 27.Qg3+ Kh8 28.Qf4 Kh7 29.exf5 Nc5 30.f6+ Nxd3 31.Qg3 Rg8
32.Qxd3+ Kh8 33.Rf5 Qe8
B. 26.Rxf5 c6 27.Ne3 and white maintains the positional advantage
C. 26.exf5 Re5 27.f6! Bxd5 28.cxd5 Nxf6 (Rxd5? Bc4!) 29.Qf2
C1. ... Rxd5 30.Ba6! Kg7 31.Rc3
C2. ... Kg7 30.Qg3+ Kh8 31.Qf4 Kg7 32.Rc3
Instead the game continued 26.e5 and now it is black that has the

difficult
decision.
A. 26. ... Rxe5 27.Bxf5 (27.Rxf5 c6, 27.Qf2 Qg5) Bxd5 28.cxd5 Qg5
B. 26 ... Nxe5 27.Bxf5 (27.Rxf5 Nxd3 28.Qxd3 Re1+) Rh6 28.Qf2 h4
after the game's 26 ... c6 neither side has an interest in avoiding the
draw.


Those comments are nonsense, ... maybe there are any missing move???


I think that the comments should be about move 25, not move 26. Does that
resolve it?


  #4   Report Post  
Old February 2nd 04, 03:59 AM
mdamien
 
Posts: n/a
Default World Record Attempt (PGN)

"Gregory Topov" wrote in message
...
"Antonio Torrecillas" wrote in message
...
En/na Gregory Topov ha escrit:

White: GM Peter Heine Nielsen
Black: ChessBrain

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. Nf3 o-o 6. Be2 e5 7. o-o a5

8.
Re1
exd4 9. Nxd4 Bd7 10. Bg5 Nc6 11. Nxc6 Bxc6 12. f3 Qd7 13. Qd2 Rfe8 14.

Rac1
h5 15. Kh1 Nh7 16. Bh6 Bxh6 17. Qxh6 Re5 18. Nd5 Rae8 19. Qd2 b6 20.

Bd3
Qd8
21. Rf1 Nf6 22. b3 Bb7 23. Qc2 Nd7 24. f4 R5e6 25. e5 c6 26. f5 gxf5

27.
Bxf5 c6xd5 28. Bxe6 e8xe6 29. Rxf7 Kxf7 30. Qh7+ Ke8 31. Qxh5+ Ke7 32.

Qg5+
Ke8 33. Qh5+ Ke7 34. Qh7+ 1/2-1/2

Here's some interesting analysis from one observer:
The key moment of the game came at move 26. where white had a number

of
complicated choices.
A. 26.Qf2 Re5 27.Qg3+ Kh8 28.Qf4 Kh7 29.exf5 Nc5 30.f6+ Nxd3 31.Qg3

Rg8
32.Qxd3+ Kh8 33.Rf5 Qe8
B. 26.Rxf5 c6 27.Ne3 and white maintains the positional advantage
C. 26.exf5 Re5 27.f6! Bxd5 28.cxd5 Nxf6 (Rxd5? Bc4!) 29.Qf2
C1. ... Rxd5 30.Ba6! Kg7 31.Rc3
C2. ... Kg7 30.Qg3+ Kh8 31.Qf4 Kg7 32.Rc3
Instead the game continued 26.e5 and now it is black that has the

difficult
decision.
A. 26. ... Rxe5 27.Bxf5 (27.Rxf5 c6, 27.Qf2 Qg5) Bxd5 28.cxd5 Qg5
B. 26 ... Nxe5 27.Bxf5 (27.Rxf5 Nxd3 28.Qxd3 Re1+) Rh6 28.Qf2 h4
after the game's 26 ... c6 neither side has an interest in avoiding

the
draw.


Those comments are nonsense, ... maybe there are any missing move???


I think that the comments should be about move 25, not move 26. Does that
resolve it?


Doesn't really resolve it since the moves shown aren't legal at move 25
either.

Matt


  #5   Report Post  
Old February 2nd 04, 01:27 PM
Gregory Topov
 
Posts: n/a
Default World Record Attempt (PGN)

"mdamien" wrote
Those comments are nonsense, ... maybe there are any missing move???


You are correct that the moves were corrupted, my apologies. Let's try
again.
You can also read a report from ChessBase here, with some observations on
the interesting position after move 25:
http://www.chessbase.com/newsdetail.asp?newsid=1458

[Event "Guinness Record Attempt"]
[Site "Denmark"]
[Date "2004.01.30"]
[Round "?"]
[White "Nielsen, Peter Heine"]
[Black "ChessBrain"]
[Result "1/2-1/2"]
[ECO "E94"]
[PlyCount "67"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. Nf3 O-O 6. Be2 e5 7. O-O a5 8. Re1
exd4 9. Nxd4 Bd7 10. Bg5 Nc6 11. Nxc6 Bxc6 12. f3 Qd7 13. Qd2 Rfe8 14. Rac1
h5
15. Kh1 Nh7 16. Bh6 Bxh6 17. Qxh6 Re5 18. Nd5 Rae8 19. Qd2 b6 20. Bd3 Qd8
21.
Rf1 Nf6 22. b3 Bb7 23. Qc2 Nd7 24. f4 R5e6 25. e5 c6 26. f5 (26. Nc3 Nc5 27.
f5
Rxe5 28. fxg6 fxg6 29. Bxg6 R8e7 30. Qf2 Rg7 31. Rce1 Rxe1 32. Bf7+ Kh8 33.
Qxe1) 26... gxf5 27. Bxf5 cxd5 28. Bxe6 Rxe6 29. Rxf7 Kxf7 30. Qh7+ Ke8 31.
Qxh5+ Ke7 32. Qg5+ Ke8 33. Qh5+ Ke7 34. Qh7+ {Forced draw by repetition with
perpetual check.} 1/2-1/2



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