Interesting game to analyze

[Günther Simon]

Geschrieben von: / Posted by: Günther Simon at 07 February 2004 21:19:50:

I am currently tuning some lines in my TheKing book
and somehow found a line (up to 40 half moves) in it,
which derived from the game below.
It is interesting that even the F8.ctg (BB book) follows
that game until move 18...Kxg7.
A quick review of the game let me think that 21.Rdh1
seems to have enough potential for compensation?
OTH I think that the played move 21.f5? seems to lose?
No idea though why Black refrained from Nf2?
It seems also that some blunders were played later,
especially 33...Rd8?? which allowed White to draw.
(Anyway an entertaining game from a Human POV)
r1qr4/pbp2pk1/1p1b4/3Pp1P1/4PPn1/P1Q4R/1P2B1P1/2KR4 w - - 0 21 a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h generated with GenDiag 1.8 (C) 2002 by Andreas Herrmann
 



[Event "Groningen PCA"]
[Site "Groningen"]
[Date "1993.??.??"]
[Round "3"]
[White "Akopian, Vladimir"]
[Black "Granda Zuniga, Julio E"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2612"]
[BlackElo "2568"]
[PlyCount "80"]
[EventDate "1993.12.??"]
[Source "ChessBase"]
[SourceDate "1998.11.10"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Bd2 Nd7 8. Qc2
Be7 9. e4 Nxc3 10. Bxc3 O-O 11. O-O-O Qc8 12. h4 Rd8 13. Rh3 h6 14. d5 Nf6 15.
Ng5 hxg5 16. hxg5 Ng4 17. f4 Bc5 18. Bxg7 Kxg7 19. Qc3+ e5 20. Be2 Bd6[D] 21. f5
Rg8 22. Bxg4 Kf8 23. Qf3 c6 24. f6 Qc7 25. Kb1 cxd5 26. exd5 Qc4 27. g6 Rxg6
28. Rh8+ Rg8 29. Rxg8+ Kxg8 30. Bf5 Qh4 31. Be4 Qf4 32. Rh1 Qxf3 33. gxf3 Rd8
34. Bh7+ Kf8 35. Bc2 Kg8 36. Rg1+ Kf8 37. Rh1 Kg8 38. Bh7+ Kf8 39. Bd3 Kg8 40.
Rg1+ Kf8 1/2-1/2

[AndyC AndyC]

Geschrieben von: / Posted by: AndyC AndyC at 08 February 2004 01:42:29:
Als Antwort auf: / In reply to: Interesting game to analyze geschrieben von: / posted by: Günther Simon at 07 February 2004 21:19:50:

I am currently tuning some lines in my TheKing book
and somehow found a line (up to 40 half moves) in it,
which derived from the game below.
It is interesting that even the F8.ctg (BB book) follows
that game until move 18...Kxg7.
A quick review of the game let me think that 21.Rdh1
seems to have enough potential for compensation?
OTH I think that the played move 21.f5? seems to lose?
No idea though why Black refrained from Nf2?
It seems also that some blunders were played later,
especially 33...Rd8?? which allowed White to draw.
(Anyway an entertaining game from a Human POV)
r1qr4/pbp2pk1/1p1b4/3Pp1P1/4PPn1/P1Q4R/1P2B1P1/2KR4 w - - 0 21 a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h generated with GenDiag 1.8 (C) 2002 by Andreas Herrmann

[Event "Groningen PCA"]
[Site "Groningen"]
[Date "1993.??.??"]
[Round "3"]
[White "Akopian, Vladimir"]
[Black "Granda Zuniga, Julio E"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2612"]
[BlackElo "2568"]
[PlyCount "80"]
[EventDate "1993.12.??"]
[Source "ChessBase"]
[SourceDate "1998.11.10"]
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Bd2 Nd7 8. Qc2
Be7 9. e4 Nxc3 10. Bxc3 O-O 11. O-O-O Qc8 12. h4 Rd8 13. Rh3 h6 14. d5 Nf6 15.
Ng5 hxg5 16. hxg5 Ng4 17. f4 Bc5 18. Bxg7 Kxg7 19. Qc3+ e5 20. Be2 Bd6[D] 21. f5
Rg8 22. Bxg4 Kf8 23. Qf3 c6 24. f6 Qc7 25. Kb1 cxd5 26. exd5 Qc4 27. g6 Rxg6
28. Rh8+ Rg8 29. Rxg8+ Kxg8 30. Bf5 Qh4 31. Be4 Qf4 32. Rh1 Qxf3 33. gxf3 Rd8
34. Bh7+ Kf8 35. Bc2 Kg8 36. Rg1+ Kf8 37. Rh1 Kg8 38. Bh7+ Kf8 39. Bd3 Kg8 40.
Rg1+ Kf8 1/2-1/2

21. ... Nf2 loses to 22. f6 Kg8 23. g6 and black here doesn't have a good reply.
21. f5 Rg8 22. Bxg4 (22. ... Qd8 23. f6 Kf8 24. Qf3 +-) Kf8 23. Qf3 c6 24. f6 Qc7 25. Kb1 cxd5 black's moves are pretty much forced in reply to white's but here white misses 26. g6 which is winning eg.
26. ... fxg6 27. Be6
Any other try by black loses to 27. g7
I'd say 21. f5 is winning.