< Earlier Kibitzing · PAGE 57 OF 200 ·
Later Kibitzing> |
Jul-21-08 | | Ceri: Hi, zsoyd and team.
No refutation, although one way to play as White is 6. Be3 / Ng4 / Bc1 / Nf6 and then play f3 instead. The following game MFO / Chessgames is probably flawed but interesting. I was away for a set of moves in the
12-18 range.
Here is my first post when I was back and Black was probably already lost. I'm pretty tired, but refreshed, after a holiday in Cuba. We have some nice pressure and I don't know what is best for Black, but I tried a couple of lines if Black were to play Rc8 now and we have a promising attack, if we show enough patience: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bc1 Nc6
8. h3 Nf6 9. Be3 e6 10. g4 Be7
11. g5 Nd7 12. h4 O-O 13. f4 Nxd4
14. Qxd4 b5 15. O-O-O Rb8 16. h5 b4
17. Na4 e5 18. Qd2 Bb7 19. g6 Bxe4
20. Bg2 Bf5 21. Bd5 Rc8
We defend with Bb3 and leave it to Black to come up with something: 22. Bb3 Be4 23. gxf7+ Rxf7 24. fxe5 Nxe5 25. Nb6 d5 26. Rhf1 Rxf1 27. Rxf1 Nc4 28. Bxc4 dxc4 29. Nxc8 Qxc8 More likely, from an OTB point of view, is Qa5 and Qe4, threatening Bg5: 22. Bb3 Qa5 23. fxe5 Qxe5 24. Bd4 Qe4 25. Rhg1 hxg6 26. Rde1 Qh4 27. hxg6 Bf6 28. Bf2 Qh5 29. Qxd6 and we are getting amongst them. We also have to look at what is best (and if there are any transpositions) if Black prefers 21... Qa5 now. Key to our thinking should be that our main threat is gxf7, not gxh7. Cheers,
Ceri
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Jul-21-08 | | zsoydd: . Dear Ceri and team,
I think the Najdorf guarantees black a draw, hence I avoid 1.e4 with white. 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bc1 Nf6
is imho the best reply if black is happy with a draw. White can now either accept the posrep or deviate from Be3 (with e.g. Be2, Bg5, f4, Bc4, g3, a4, f3, h3, Bd3, Rg1, Qf3, a3, Nb3, g4) but all these alternatives seem to be less forceful than the strongest Be3 lines for white. best regards,
zsoyd |
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Jul-21-08 | | Ceri: Hi zsoyd.
Your cc game - Rybka doesn't shift its ideas at 32 depth: 30.01 13:35 +0.54 42.a4 Ke8 43.Be3 Kd7 44.a5 Kc8 45.Bh3+ Kb8 46.Bb6 Be8 47.Bg4 h5 48.Be6 Bf6 (121.312.984) 152 TB:4
31.01 22:07 +0.54 42.a4 Ke8 43.Be3 Kd7 44.a5 Kc8 45.Bh3+ Kb8 46.Bb6 Be8 47.Bg4 h5 48.Be6 Bf6 (193.557.954) 149 TB:5
32.01 34:21 +0.54 42.a4 Ke8 43.Be3 Kd7 44.a5 Kc8 45.Bh3+ Kb8 46.Bb6 Be8 47.Bg4 h5 48.Be6 Bf6 (302.363.388) 150 TB:7 My thought was to try to stop the Black King going Q-side with Bh3, which needs Be3 to be played first. You then get:
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4
Be7 7. N1c3 a6 8. Na3 Nf6 9. Nc2 O-O 10. Bd3 Bg4 11. Qd2
Qb6 12. O-O Bd7 13. b3 Nb4 14. Na4 Bxa4 15. Qxb4 Qxb4
16. Nxb4 a5 17. Nc2 Bc6 18. f3 Nh5 19. g3 Bd8 20. Be3 Nf6
21. Na3 a4 22. b4 Be7 23. Rac1 Rfc8 24. Nb1 Bd7 25. Nc3 a3
26. Rfd1 Kh8 27. Bf1 h6 28. h4 Kg8 29. Kf2 Kh8 30. Be2 Kg8
31. Nd5 Nxd5 32. cxd5 f5 33. Rxc8+ Rxc8 34. Rc1 g5
35. Rxc8+ Bxc8 36. h5 f4 37. Bc1 fxg3+ 38. Kxg3 Bd7
39. Bxa3 Kf8 40. Bf1 Be8 41. Bc1 Bxh5 42. Be3 Ke8 43. Bh3
Bd8 44. a4 b6 45. Bd2 Ke7 46. a5 Bc7 47. a6 Bb8 48. Be3 Ba7 and I think that the position is a blocked draw.
What happened in practice?
Cheers,
Ceri
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Jul-21-08 | | zsoydd: . Hi Ceri,
a small hint: premature a4 closes the gates of Troia - imho white then cannot invade the black fortress any more. Maybe you have still access to this game if it hasn't been removed from the database 'there'. It was against 'BBush..'. The one against Mely was also interesting - why didn't I take the offered pawn in the endgame? In those times it was hard work to detect the trap, but nowadays fisheyes see the idea very quick. Against Arkadeles -if I remember right- the opening crowbar 'f4' was a must, if I wanted to preserve my strong initiative. Don't know if engines are aware of the dynamic need of such attack positions. Your PC is very much quicker than mine (who took 1 hour for 30 ply).
Is it a 4-core?
Greetings,
zsoyd
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Jul-22-08 | | Ceri: Hi, zsoyd.
I can't see LPC games without re-joining.
My machine is now quite old - 3 years.
It's a pre-AM2 AMD 4400 X2 but on its "quiet" Abit u-guru setting it runs at about the equivalent of 4675. "Quiet" means that some of the fans are turned off, so there is less backround noise. A modern laptop would be faster, I suspect.
Cheers,
Ceri |
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Jul-22-08 | | zsoydd: Hi Ceri,
if you wish, I can give you the solution of my puzzle, and also post my old games played on cw (they're in no DB so far, afaik). another hint:
instead of 42.a4(??) try to enforce a significant transformation in the next two moves and then there is a very non intuitive bishop manouvre with the intention to create a free pawn which deflects the bK - please note that it is maybe still draw, but it looks very dangerous for black This would be a good testpos for a 3500 ELO (otb) engine. My old PC has damaged my hearing, therefor quietness is now my primary criteria for a new PC. I'm just awaiting the next price decline for the new energy saving 45nm Q9450 (12 MB LC cache!) to finally buy my first new PC after 2003. With the new hardware and the new interactive analysis techniques i can do on a multi-core system I hope to improve my practical strength by an equivalent of 200 ELO Cheers,
zsoyd |
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Jul-22-08 | | kwid: Hi All,
Good to see you working hard to forge out a winning opening line against GMAN.Your last few posts seem off topic.
But it may help us to get a better understanding of the search depth
requirement to extend our horizon.
Is this the position you are discussing?
 click for larger viewHere is my assessment:
Get control over g4 and b5, force a passer, maximize the strength of our king to force zugzwang.  click for larger view click for larger view click for larger view click for larger viewThe positions above are my goals.
It may take more than 40 moves to get there. If it would be our game I
would start working on the ways to reach the potential positions as shown above. But we better get to more specific discussions how to deny GMAN a draw
since we carry IMO a much high rating.
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Jul-22-08 | | kwid: Sorry i forgot to mention that my first move is Be3 leading into: click for larger viewexpecting Ke8, a4 Kd7, a5 Kc8 (trying to hold the outside passer with his king) followed by Bh3 |
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Jul-22-08 | | zsoydd: . Dear Kurt,
I'm not sure whether Your winning attempt would work. If I remeber right, all these slow manouvers were easily paried by black (at least in my analysis of those days). Then I asked myself: what if the bishop pair is halved? btw:
I'm only waiting until the team finally stops to waste any computing or discussion time for the totally won game, and directs it's entire energy to the preparation of the next one. Best regards,
zsoyd
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Jul-22-08 | | kwid: Jul-22-08 < zsoydd: >
< If I remember right, all these slow manouvers were easily paried by black (at least in my analysis of those days).> Well now your are making me curious and challenged to see if my view
is based on realistic expectations.
If you have a solution already worked out let's see if I can find a hole in it. It could safe me some time and a possible embarrassment. |
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Jul-22-08 | | Ceri: Hi, zsoyd and Kurt.
I am off on holiday on Sunday for most of the next 4+ weeks and I am trying to finish paintingn my utility room before I go. Perhaps you could post the game and let me work on a refutation whilst I away? Interesting that Kurt and I both tried Be3 first.
I agree that it seemed to me a forced White win with the White-coloured Bishops off but a way to force that was hard to spot. Cheers,
Ceri |
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Jul-22-08 | | zsoydd: . Dear Ceri, dear Kurt,
zsoyd - Bbush60854
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. N1c3 a6 8. Na3 Nf6 9. Nc2 O-O 10. Bd3 Bg4 11. Qd2 Qb6 12. O-O Bd7 13. b3 Nb4 14. Na4 Bxa4 15. Qxb4 Qxb4 16. Nxb4 a5 17. Nc2 Bc6 18. f3 Nh5 19. g3 Bd8 20. Be3 Nf6 21. Na3 a4 22. b4 Be7 23. Rac1 Rfc8 24. Nb1 Bd7 25. Nc3 a3 26. Rfd1 Kh8 27. Bf1 h6 28. h4 Kg8 29. Kf2 Kh8 30. Be2 Kg8 31. Nd5 Nxd5 32. cxd5 f5 33. Rxc8+ Rxc8 34. Rc1 g5 35. Rxc8+ Bxc8 36. h5 f4 37. Bc1 fxg3+ 38. Kxg3 Bd7 39. Bxa3 Kf8 40. Bf1 Be8 41. Bc1 Bxh5 42. Bb5 Bf6 43. Be3 Be8 44. Bxe8 Kxe8 45. Kg4 b5 46. Kh5 Bg7 47. Kg6 Bf8 48. Bb6 Kd7 49. Ba5 Ke8 50. a4 bxa4 51. b5 * and so on.
After 48. Bb6 Rybka needs 25 ply to see the light on the horizon. This means it would need 37 ply in the original position before move 42 of white. I know many such position types now - very useful knowledge when I play against engine assisted opponents (nearly all of them). Best regards,
zsoyd
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Jul-23-08 | | kwid: Jul-22-08 <zsoydd:>
Yes! I did not see Kg4/Kg6/Kf7 threat together with Bb6/Ba5/a4 and the d6
pawn hangs. I thought that white had to play a4 to prevent b5 which would
allow h5 and draw. Your bishop maneuver to a5 is the key which I did not see.
Congratulation for your superb chess vision!
Truly a GM performance! |
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Jul-23-08 | | Ceri: Sorry, guys - I had the wrong mindset.
How to beat a computer in 2004?
So, I was trying to find best play, not how to sucker the opponent. I ran Deep Fritz 7 = Fritz 8 to simulate Fritz 8 on a single-core machine - no twins back then. Fritz, being stupid, exchanges on e8 as Black. Shredder 8 plays Bf6 and just avoids Be8:  click for larger viewAnalysis by Deep Fritz 7:
1. ± (0.94): 42...Be8 43.Bxe8 Kxe8 44.a4 h5 45.a5 Bd8 46.Bd2 Kd7 47.b5 Kc8 48.a6 Kb8 49.Be3 bxa6 50.bxa6 Be7 51.Kh3 Ka8 52.Kh2
2. ± (1.00): 42...Bf6 43.a4 Ke7 44.Be3 Kd8 45.a5 Kc8 46.Ba7 Be7 47.Bf1 Be8 48.b5 Bd7 49.b6 Kd8 50.a6
3. ± (1.06): 42...Bd8 43.Be3 b6 44.a4 Bc7 45.Bc6 Ke7 46.b5 Kd8 47.a5 Kc8 48.axb6 Bd8 49.Bg1 Be7 50.Bf2 Bd8 51.Kg2 Kb8 (, home 23.07.2008)
 click for larger viewAnalysis by Deep Fritz 7:
1. ± (1.00): 43...Be8 44.Bxe8 Kxe8 45.a4 h5 46.a5 Bd8 47.Bd2 Kd7 48.b5 Kc8 49.a6 Kb8 50.Be3 b6 51.Kh3 Kc7 52.Kh2 Kb8 53.Kh1
2. ± (1.19): 43...Bd8 44.a4 b6 45.Bd2 Ke7 46.a5 Bc7 47.a6 Bb8 48.Be3 Ba7 49.Bc6 Kd8 50.Kg2 Kc7 51.b5 Bb8 52.Kg3 Ba7
3. ± (1.25): 43...Ke7 44.Bb6 Bg6 45.a4 h5 46.a5 h4+ 47.Kg4 Be8 48.Bxe8 Kxe8 49.Bf2 Bd8 50.Be1 Kd7 51.b5 Kc7 52.Bf2 Kb8 53.a6 (, home 23.07.2008)
 click for larger viewAnalysis by Shredder 8:
1. ± (1.09): 43...Bd8 44.a4 b6 45.Bd2 Ke7 46.a5 Bc7 47.a6 Bb8 48.Kf2 Kd8 49.Bc6 Kc7 50.Ke3 Bg6 51.b5 Kd8 52.Ke2 Bh5 53.Bb4 Kc7 54.Bxd6+ Kxd6 55.Ke1
2. ± (1.14): 43...Be8 44.Bxe8 Kxe8 45.a4 h5 46.a5 Bd8 47.Bd2 Kd7 48.b5 Kc7 49.a6 Kb8 50.Be3 b6 51.Kg2 Ka7 52.Bd2 Kb8 53.Bb4 Be7 54.Kg3 Bf8 55.Bd2 Be7 56.Bb4 Bf8 57.Bd2 Be7
3. (1.54): 43...Ke7 44.Bb6 Bg6 45.a4 h5 46.a5 h4+ 47.Kg4 Be8 48.Bxe8 Kxe8 49.b5 Bd8 50.Be3 Kd7 51.a6 Bc7 (, home 23.07.2008)
Now, I reckon that my Bd8, then b6 plan, outlined in a post above, sets up a fortress if Black realises that the B exchange is futile! Soon, we will have to start to find the weaknesses of Rybka 3, possibly running on an overclocked 8-core Skulltrail, with a brand new and constantly-updated opening book. It was much, much easier killing Fritzi in end-games! Cheers,
Ceri
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Jul-23-08 | | zsoydd: . Dear Kurt, dear Ceri,
I think the idea Ba4 is not that hard to see,once you come to the conclusion that there is no progress without bishop exchange. Another important observation is that white must delay a4 until time has come. Premature a4 only closes the q-side. 42. Bb5 Be8 seems to be the best defense. Other defenses (if I remember right) allow my pieces to infiltrate in the long run. For the details I'd have to dig in my old analysis files (many 100s). Best Regards,
zsoyd
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Jul-23-08 | | Ceri: Hi, zsoyd and Kurt.
My idea of defending as Black is to leave the K-side as is and play Bd8, then b6 and defy White to get through on the Q-side while the Bishop threatens f3. This, I think, ties down the White King, which zsoyd values as 4 pawns in this type of ending, I think. Cheers,
Ceri |
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Jul-23-08 | | zanshin: <zsoydd> Thanks for the note in my forum. I gave Rybka (LK) one last chance, running it overnight at 1-PV. At 40-ply, the best it could come up with was: <(0.54) Depth: 40 09:22:04 8987mN
42.a4 Ke8 43.Be3 Kd7 44.a5 Kc8 45.Bh3+ Kb8 46.Bd7 Bd8 47.Kg2 Ka8 48.Bb5 Kb8> (More lines in my forum) I wonder if it will ever see anything better. I believe max ply depth is 59. |
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Jul-23-08 | | zsoydd: . Dear <zanshin>,
Many thanks again for your new effort.
So it looks like not even 40 ply are sufficent for Rybka 2.3.2 to correctly evaluate the position and to propose the best plan. If you want to, you could give 42. Bb5 a try and ask Rybka for the best 2 reply candidates. Does Rybka on your fast machine see any significant improvent for Black if you backtrack my game (with ca. 3 minutes per move) starting from the end position? Best regards,
zsoyd
p.s.
In a few months I hope to have Rybka 3 and a quadcore PC with 8 GB or more, so that I can do similar investigations on my own. |
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Jul-23-08 | | Ceri: Hi, all.
I accidentally ran Rybka 2.3.2a for 24 hours on the position reached after move 48 on my first post (where the Black Bishop is on a7 and the pawn on b6). It reached depth 47 and could see no way through for White. Cheers,
Ceri |
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Jul-23-08 | | kwid: If black can prevent Bb6/Ba5/a4 then it would be a draw right? click for larger view[Event "?"]
[Site "?"]
[Date "2008.07.23"]
[Round "?"]
[White "Zsoyd"]
[Black "BBush"]
[Result "1/2-1/2"]
[ECO "B32"]
[Annotator "Widmann,Kurt"]
[PlyCount "114"]
[EventDate "2008.07.23"]
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. N1c3 a6 8. Na3
Nf6 9. Nc2 O-O 10. Bd3 Bg4 11. Qd2 Qb6 12. O-O Bd7 13. b3 Nb4 14. Na4 Bxa4 15.
Qxb4 Qxb4 16. Nxb4 a5 17. Nc2 Bc6 18. f3 Nh5 19. g3 Bd8 20. Be3 Nf6 21. Na3 a4
22. b4 Be7 23. Rac1 Rfc8 24. Nb1 Bd7 25. Nc3 a3 26. Rfd1 Kh8 27. Bf1 h6 28. h4
Kg8 29. Kf2 Kh8 30. Be2 Kg8 31. Nd5 Nxd5 32. cxd5 f5 33. Rxc8+ Rxc8 34. Rc1 g5
35. Rxc8+ Bxc8 36. h5 f4 37. Bc1 fxg3+ 38. Kxg3 Bd7 39. Bxa3 Kf8 40. Bf1 Be8
41. Bc1 Bxh5 42. Bb5 Bd8 43. Be3 Bc7 44. a4 Bg6 (44... b6 45. Bc6 Bd8 46. Bd2
Bc7 47. a5 Ke7 48. a6 Bb8 49. Be3 Ba7) 45. a5 Ke7 46. a6 (46. Ba4 Kd8 47. Bd2
Bb8 48. b5 Be8 49. Kg4 Ke7) 46... bxa6 47. Bxa6 Bb8 48. Bb7 Kd8 49. b5 Ke7 50.
Kg4 Be8 51. Bc6 Bf7 52. b6 Kd8 53. Bd2 Ke7 54. b7 Kf6 55. Be3 h5+ 56. Kg3 Bg6
57. Bb6 Ke7 1/2-1/2
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Jul-23-08 | | zanshin: <kwid> Just so I understand, you want me to start the analysis after <44.Kg4>, right? First, I need to look at <zsoydd>'s request ;-) |
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Jul-23-08 | | kwid: Jul-23-08
< zanshin: <kwid> >Thanks for your contributions.
But as Ceri already pointed out that black has Bd8/b6/Bc7/Ba7 etc
and holding both bishops = Draw!
So the engines evaluations were correct in assessing the position
after Bxh5 with a draw also!
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Jul-23-08 | | zsoydd: . Hi Kurt, Ceri, <zanshin>, be aware that the pawn on a2 has a reserve tempo that can be very useful in zugzwang positions. Early a4 throws away this potentially useful reserve tempo. If black moves b6, a6 might become an interesting target for the wK. best regards,
zsoyd |
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Jul-23-08 | | zanshin: <zsoydd> and <kwid> Do I take it then that you are both satisfied with the analysis done on this game? I have time for this now because of the status of the GMT game, so let me know if you want anything further. |
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Jul-23-08 | | kwid: Ok, let's get back on track to derail GMAN
The game below seems to be below a GM performance.
He may well prepare to discourage QI or Nimzo with his e3 approach
as seen in this game below. Does anyone know at what time control
this game was played?
 click for larger view[Event "?"]
[Site "?"]
[Date "2007.05.26"]
[Round "?"]
[White "Nickel, Arno"]
[Black "Cocchi, Andrea"]
[Result "0-1"]
[PlyCount "135"]
[EventDate "2007.??.??"]
1. Nf3 Nf6 2. d4 e6 3. e3 c5 4. c4 cxd4 5. exd4 d5 6. Nc3 Bb4 7. Qb3 Nc6 8. Be2
(8. Bg5 O-O 9. Rd1 dxc4 10. Bxc4 Bxc3+ 11. bxc3 Na5 12. Qb4 Qc7 13. Bxf6 Nxc4
14. Be7 Re8 15. Bc5 b6 16. Qxc4 Bb7 17. O-O bxc5) 8... O-O 9. O-O dxc4 10. Qxc4
Be7 11. Rd1 Nb4 12. Ne5 Bd7 13. Bf3 Rc8 14. Qb3 Bc6 15. Nxc6 bxc6 16. Bf4 Nbd5
17. Be5 Qb6 18. Qc2 Nd7 19. Bg3 Rfd8 20. Ne4 Nf8 21. a3 Ng6 22. Rac1 Nh4 (22...
f5 23. Nc5 f4 24. Nxe6 fxg3 25. Nxd8 gxf2+ 26. Kxf2 Rxd8 27. Qxc6 Qxb2+ 28. Rc2
Qb3 29. Bxd5+ Qxd5 30. Qxd5+ Rxd5 31. Rc8+ Nf8) 23. Bxh4 Bxh4 24. g3 Bf6 25.
Nc5 Ne7 26. Be4 g6 27. Qc3 Rd6 28. b4 Rcd8 29. Nb3 Kg7 30. Kg2 h5 31. h4 Qb5
32. Qf3 Qa4 (32... Qb6 33. Rd2 Nf5 34. Bxf5 exf5 35. Rc5 Qa6 36. Na5 Rxd4 37.
Rxd4 Bxd4 38. Rxc6 Qb5) 33. Nc5 Qb5 34. Nb3 (34. Bd3 Qb6 35. Ne4 Bxd4 36. Nxd6
Rxd6 37. Be4 e5 38. Qe2 Rf6 39. Bf3 Nd5 40. Rf1) 34... Qb6 35. Rc4 Qa6 (35...
Bxd4 36. Nxd4 Rxd4 37. Rdxd4 Rxd4 38. Rxd4 Qxd4 39. Bxc6 Nf5 40. b5 Qc5 41. a4
Nd4 42. Qe3 f5) 36. Na5 Bxd4 37. Bxc6 Bf6 38. Rxd6 Rxd6 39. Rc2 (39. Bb7 Qb5
40. Rc5 Qd7 41. Nc4 Rd3 42. Qe4 Rb3 43. Bc6 Qd8 44. Ba4 Rc3) 39... Nf5 (39...
Rd3 40. Qe2 Nxc6 41. Nxc6 Rxa3 42. Qxa6 Rxa6 43. f4 Kf8 44. Nb8 Rd6 45. Rc7
Rd2+ 46. Kh3 Bd4 47. Nc6 Bg1) 40. Bb7 Qb5 41. Rc5 Qd7 42. Bc6 Qe7 43. Nb3 (43.
Be4 Rd2 44. Nc6 Qd7 45. Rc2 Rxc2 46. Bxc2 Nd4 47. Nxd4 Bxd4) 43... Bb2 44. Ra5
Nd4 45. Nxd4 Bxd4 46. b5 e5 47. Qe2 Qc7 48. Ra6 Rf6 49. Bf3 Rf5 50. Rc6 Qe7 51.
Qd3 Bc5 52. a4 Kh7 53. Qe4 Bd4 54. Rc2 Qa3 55. Re2 (55. Qc6 Kg7 56. Be4 Rf6 57.
Qc4 Qa1 58. Re2 Qd1 59. Qc2 Qa1 60. Bb7 Qa3) 55... Qxa4 56. Qd3 Qb4 57. Be4 Rf6
58. Bc6 Kg7 (58... a5 59. Qd2 Kg7 60. Qxb4 axb4 61. Bd5 Kf8 62. Bb3 e4 63. Rxe4
Rxf2+ 64. Kh1 Rd2 65. b6 Bxb6 66. Rxb4 Be3) 59. Qc2 Qd6 60. Qe4 Qc5 61. Qc2 Qb6
62. Qa2 (62. f3 Rd6 63. Rd2 Qa5 64. Rd1 Qb4 65. Qa2 Rd8 66. Qc2 Rc8 67. Rc1 Be3
68. Rb1 Qa5 69. Rd1) 62... a6 63. Qd5 axb5 64. Bxb5 Bxf2 65. Qxe5 Bd4 66. Qd5 (
66. Qe8 Qc5 67. Qd7 Qc3 68. Kh3 Rf3 69. Qd6 Bf2) 66... Rf5 67. Qc4 Rxb5 68. Re7
0-1
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