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Very Hot Topic (More than 25 Replies) Christoph's Gambit!? (Read 97944 times)
CraigEvans
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Re: Christoph's Gambit!?
Reply #62 - 01/07/10 at 11:31:53
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Indeed, I find Lev's avoidance of a "book" on the ...c6 lines as a hint that even he has no real faith in white's prospects here, against correct play. A book holds little interest if it does not hold up to analytical scrutiny, after all...

Also, I wonder if the articles on the ZGED will contain the refutations found by forum members here. I think not, somehow...
  

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Re: Christoph's Gambit!?
Reply #61 - 01/07/10 at 03:27:23
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Gambit wrote on 01/06/10 at 05:26:08:
Is someone being lazy or what?

Yeah, you for
1) not sending me your article after promising almost a year ago.
2) not publishing a book on the critical 4/5...c6.

Btw I noted that you recently played a game as Black with 1.e4 g6. Quite remarkable.
  

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Gambit
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Re: Christoph's Gambit!?
Reply #60 - 01/06/10 at 23:09:31
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In the time it takes you to publish the BDG book, I will already have published my first book about the Zilbermints Gambit in the Euwe Defense to the BDG. The first part has been published in Unorthodox Chess Openings 325; the second is slated for #26. Part One is 56 pages; Part Two might be more than that.

I intend to publish a series of BDG books on interesting lines: Teichmann, Bogoljubow, Vienna and Langeheinecke Defenses. All will include my games
as well as games by other players.

For the record, here is the breakdown:

1 d4 d5 2 e4 de4 3 Nc3 Nf6 4 f3

4...e3?! Langeheinecke
4...Bf5  Vienna
4...ef3 5 Nxf3  g6 Bogoljubow Defense
           5...       Bg4 Teichmann

  
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Glenn Snow
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Re: Christoph's Gambit!?
Reply #59 - 01/06/10 at 18:32:45
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IM Christoph Wisnewski wrote on 01/06/10 at 13:12:20:
I think the main problem is that while I wrote the book in an "illustrative games" approach the publisher decided that an "analytical tree" format would be more suitable. I suppose that it takes some time to change that, even though I did not think it would take that long.

And I still have to approve the new draft, too...


While I generally prefer the analytical tree format, I think I would have told the publisher something about flying a kite.
  
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TonyRo
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Re: Christoph's Gambit!?
Reply #58 - 01/06/10 at 13:46:38
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That's quite a serious switcheroo there! Can you at least give us some hints as to your recommendations for White while we're waiting? I'd be interested to hear what you have against the ...c6 followed by ...Bf5 lines.
  
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IM Christoph Wisnewski
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Re: Christoph's Gambit!?
Reply #57 - 01/06/10 at 13:12:20
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I think the main problem is that while I wrote the book in an "illustrative games" approach the publisher decided that an "analytical tree" format would be more suitable. I suppose that it takes some time to change that, even though I did not think it would take that long.

And I still have to approve the new draft, too...
  

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TN
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Re: Christoph's Gambit!?
Reply #56 - 01/06/10 at 05:36:59
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Gambit wrote on 01/06/10 at 05:26:08:
Is someone being lazy or what? What is taking so long to get that BDG book out?!


Perhaps Christoph refuted the BDG?
  

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Gambit
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Re: Christoph's Gambit!?
Reply #55 - 01/06/10 at 05:26:08
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Is someone being lazy or what? What is taking so long to get that BDG book out?!
  
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Re: Christoph's Gambit!?
Reply #54 - 01/05/10 at 19:39:54
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Scheerer's book has moved into the "Coming Soon" Section at Everymans site. So has Taylor's Alekhine book. Curiously, the excerpt is still not up. Let's hope they're out and about soon, I'd like to take a look-see at both books!  Grin
  
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Re: Christoph's Gambit!?
Reply #53 - 12/17/09 at 20:02:40
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@TN: Let's have moves, evaluations, amicable banter and games only insofar as games support evaluations, not more.  I see no one objecting to any of that.

Message me privately with any specific concerns you have about your being ridiculed, which I would certainly try to deal with.
  

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Re: Christoph's Gambit!?
Reply #52 - 12/17/09 at 13:04:52
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I say you post your games and analyses, and see what others say. Quite a few people will give their opinion. Me, I have posted this way for a long time. The whole point is to get the ideas across. Let fools be fools, and smart people be smart people, goes the Russian saying.

Hope to see your games and analyses  soon. Happy Holidays!
  
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TN
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Re: Christoph's Gambit!?
Reply #51 - 12/17/09 at 08:21:42
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This is the impression I get from this thread.

Page 1: The members don't want Veresov updates.

Page 2: The members don't want people offering support of the BDG, then the chess comedy (thankfully?) ends.

Page 3: The members want moves, not evaluations. The members get moves.

Page 4:
The members don't want evaluations of positions.
The members don't want games.
The members don't want moves.
The members don't want banter.

So I am at a loss at what to say, what will actually contribute to the discussion of the BDG, if anything. I was going to post some extra analysis, but if it means getting ridiculed for presenting my opinion, using sample games and analysing these games and the alternatives to the moves played to back up my opinion, then I really don't see the point.

Sorry if this is completely off the mark (I'm very busy atm), but that is my impression.

  

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Re: Christoph's Gambit!?
Reply #50 - 12/17/09 at 02:23:12
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The problem with so many threads on the BDG is that the same issues come back over and over again, mainly because newbies don't check older threads, no matter how much they love or hate the BDG. I am certainly not the only one who has a deja-vu.
After 7.Bd3 I think Nc6 critical, when LDZ thinks White should play 8.0-0! (the exclam is his, not mine) and all the others on this site think Black can prove an advantage. So some others prefer 8.a3 and claim that White has sufficient compensation. I dislike such a waste of tempo in a development gambit. Then ArkHein - and maybe a few others - will reply that the BDG is a positional gambit. On that I disagree, which obviously shows my poor chess understanding, as already was pointed out on the previous page.
Anyhow, I think 7.Qd2 better than 7.Bd3. After 7.Qd2 h6 imo White should play 8.Be3. Unless my notes contain a flaw White has sufficient compensation. One point is that castling kingside about equals suicide because of the thematic bishop sac on h6.
I also have my doubts about the French Rubinstein move order - Black does not need to play 4...exf3. Also 4...exf3 5.Nxf3 c5 looks annoying. So the move order that interests me most is 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.f3!?! (dubious compared to 5.Nxe4 but still interesting). Then besides the principled 5...exf3 also declining with 5...e3 is playable.
It is typical that the more sober and objective people with some preference for gambits in general provide more analysis than the hardcore devotees of this opening.
  

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Re: Christoph's Gambit!?
Reply #49 - 12/17/09 at 01:51:54
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Ah, I didn't see the bit about the Rubinstein in the French.

"The BDG is slightly better for Black" is only your opinion, as nobody has proved an advantage for Black- some think it is "=", some think it is "=+", and there has been supporting evidence on both sides.  Plus if Black does have a route to =+ it probably isn't via the Euwe Defence.  I am not sure that offering games in which Black won after 7.Qd2 h6 is better than Lev Zilbermints offering White wins in his crazy 0-0 line.

Actually I would give 4.f3 a "?!" as well, but for a very different reason- instead of 4...exf3 Black should prefer 4...Bb4! which is nearly a refutation.  If White wishes to play a BDG in this way it is better against 3...Nf6 4.Bg5 dxe4, when after 5.f3 Black has nothing better than 5...exf3.
  
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Re: Christoph's Gambit!?
Reply #48 - 12/16/09 at 21:36:23
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Quote:
The correct move is 8 Bxe7 Qxe7
9 Qd2 when the Black Queen Bishop is still undeveloped.


Quote:
BDG theory suggests 8 Bxe7 as the best move here.


BDG Theory is certainly well ahead of Informant theory (I took the posted game from Informant and added my own comments). I can't find any advantage for Black after 8...Qe7 9.Qd2, and 8...Ne7 9.0-0 isn't a better idea.

[Event "Poysdorf op"]
[Date "1994"]
[Round "7"]
[White "Steindl, Helmut"]
[Black "Fuernkranz, R."]
[Result "1/2-1/2"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nd5 8.
Bxe7 Nxe7 (8... Qxe7 9. Qd2 Nxc3 10. bxc3 ((10. Qxc3 Nc6 11. a3 Bd7 12. O-O O-O
is given as equal by Rybka but Black is very solid and should hold a slight
edge due to his extra pawn and the absence of threats by White.)) 10... O-O 11.
O-O f6!? 12. Rae1 Nc6 13. Qf4 Qd6 14. Qe4 f5 15. Qe3 and White has enough
compensation for the pawn.) 9. O-O b6 $6 10. Kh1 (10. Qe2) (10. Ng5! Nf5 11.
Bxf5 Qxg5 12. Qf3 c6 13. Rae1 with initiative) 10... Ba6 11. Ng5 Nf5 12. Bxa6? (12. Rxf5! exf5 13. Qh5 Qe7 14. Nd5 g6 15. Qh4 +-) 12... Nxa6 13. Nxf7 Kxf7 14. g4 g6??
(14... Qc8 15. gxf5 exf5 16. Qe2 Re8 17. Qh5+ Kg8 is fine for Black) 15. gxf5 exf5 16. Qe2 (No idea why the players agreed a draw here. After 16...Qc8 17.Rae1 White is winning.) 1/2-1/2

My conclusion is that 7...Nd5 is dubious as White gains sufficient compensation for the pawn. Black should prefer 7...Nc6 or 7...Nbd7.

Quote:
Btw in the Euwe Defence I prefer 7.Qd2 when no path to advantage for Black has been found- and I disagree with giving 4.f3 a "?!".  White's slight inaccuracy was at move 2 with e4 instead of c4, and after 2.e4 dxe4 3.Nc3 Nf6, 4.f3 may well be White's best move in the position.


I don't trust 7.Qd2 because of 7...h6 in the following game:

[Event "Karl Mala Memorial op 07th"]
[Site "Griesheim"]
[Date "2003.07.25"]
[Round "3"]
[White "Drill, Frank"]
[Black "Donchenko, Anatoly G"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2213"]
[BlackElo "2401"]
[PlyCount "66"]
[EventDate "2003.07.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]

1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Qd2 h6 8.
Bh4 (8. Bf4 c6 ((8...a6!?)) 9. O-O-O Qa5 10. Ne5 Bb4 11. Nc4 Bxc3 12. Nxa5 Bxd2+ 13. Rxd2
O-O 14. Rg1 Nd5 15. Bd6 Rd8 16. Ba3 b6 17. Nb3 a5 18. c4 Ne3 19. Na1 Nxf1 20.
Rxf1 Ba6 21. b3 b5 22. cxb5 cxb5 23. Be7 Rd7 24. Bc5 Nc6 25. Nc2 Rc8 26. Rfd1
Bb7 27. Kb2 Ne7 28. Ne3 Nd5 29. Nxd5 Bxd5 30. Bb6 Ra8 31. a3 a4 32. b4 Rb7 33.
Bc5 Rd8 34. Re2 f5 35. Rde1 Kf7 36. Kc3 Kf6 37. Kd2 g5 38. Ke3 Rf7 39. Kf2 f4
40. Rc2 Rc8 41. Rec1 Rc6 42. Rc3 Kg6 43. Re1 h5 44. h4 g4 45. Re5 Rf5 46. Rxf5
Kxf5 47. g3 fxg3+ 48. Kxg3 e5 49. dxe5 Kxe5 50. Rd3 Rf6 {0-1 Herbrechtsmeier,
C-Lang,H/Zell 1977/EXT 1999}) 8... Ne4 9. Nxe4 Bxh4+ 10. g3 Be7 (White doesn't have enough for the pawn and two bishops because Black is solid in spite of his lag in development) 11. O-O-O Qd5
12. Bd3 Qxa2 13. c3 Nc6 14. Qf4 Qa5 15. h4 e5 16. Nxe5 Nxe5 17. dxe5 Be6 18.
Bb1 Rd8 19. Rxd8+ Kxd8 20. Nd2 g6 21. Nf3 Kc8 22. Nd4 Bd5 23. Rd1 c5 24. Nb5
Be6 25. Nd6+ Kb8 26. Qf3 Qa6 27. Be4 Rd8 28. Bxb7 Qa1+ 29. Kd2 Qxb2+ 30. Ke1
Bb3 31. Rd2 Qc1+ 32. Ke2 Bxd6 33. exd6 Bc4+ 0-1

As for 4.f3?!, you didn't check the game closely enough. White played 1.e4 e6 2.d4 d5 3.Nc3 de4, and instead of securing a slight edge with 4.Ne4 (The Rubinstein Variation), White sacrificed a pawn with 4.f3, leading to the BDG, which is slightly better for Black.

___

In my next post I'll either continue looking at the Euwe Defence or examine a different variation depending on whether I can find an edge for Black after 7...Nbd7.


  

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