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Very Hot Topic (More than 25 Replies) New (2019) Kaufman Repertoire? (Read 11867 times)
MNb
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Re: New (2019) Kaufman Repertoire?
Reply #59 - 11/13/19 at 11:19:30
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mn wrote on 11/12/19 at 21:20:30:
Yeah, but if Black is committed to the early ...Bg7, Black can play Qd2 and eventually Bh6 and it should transpose, no?

That's correct unless Black plays the inferior 1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 Nf6 5.Qd2 Ng4. The first bad news for White is that it takes a truckload of theoretical knowledge to demonstrate that it's inferior indeed.
The next step is realizing that this issue returns after 4...c6 5.Qd2 b5 and Black might or might not play 6...Nf6. The second bad news is that it's not easy at all to build a consistent repertoire. For instance the easy copout for instance is 6.f4 Nf6 7.e5 or 7.Bd3. But that's the same as 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 Bg7 5.Qd2 c6 6.f4 b5, when White would have preferred to play 6.Bh6.
Given the table of contents I strongly doubt if GM Kaufman discusses these transpositions in his book. One thing is clear: playing 4.Be3 and 5.Qd2 against the Modern requires quite some knowledge of the Pirc, on top of 4.Bf4.
  

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Confused_by_Theory
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Re: New (2019) Kaufman Repertoire?
Reply #58 - 11/13/19 at 07:11:39
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Hello.

You are right about that actually. Black is somewhat disadvantaged by the fact that he only has two main moves after 4.Be3 Nf6 5.Qd2 (5...c6 and 5...0-0) and both are not active enough to prevent Bh6 ideas even in their most potent forms. Essentially Kaufman has chosen to play 4.Bf4 lines instead of allowing 1.e4 d6 2.d4 Nf6 3.Nc3 Nf6 4.Be3 a6 and ...4.Be3 c6.

Still interesting to see what he has in the 4...a6 and 4...c6 modern.
  
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mn
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Re: New (2019) Kaufman Repertoire?
Reply #57 - 11/12/19 at 21:20:30
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Yeah, but if Black is committed to the early ...Bg7, Black can play Qd2 and eventually Bh6 and it should transpose, no?
  
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Confused_by_Theory
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Re: New (2019) Kaufman Repertoire?
Reply #56 - 11/12/19 at 00:49:42
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Hello.

The Modern move order might indeed pose some problems.
1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 Nf6 certainly avoids the 4.Bf4 Pirc (i.e. best system! Wink)

Have a nice day.
  
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MNb
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Re: New (2019) Kaufman Repertoire?
Reply #55 - 11/11/19 at 16:15:47
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RoleyPoley wrote on 11/11/19 at 15:36:12:
Are they completely covered?

Given the facts that it's just one book and presents all kind of other main lines (if we can believe the info of this thread), what would be your bet?

Later addition: I read the excerpt and met

"the Modern by an early Be3, and the Pirc by a surprising early B f4 which has only recently come to my attention."
Sounds like our own Confused by Theory has had some influence on Kaufman. Also I wonder about 4.Be3 Nf6.
« Last Edit: 11/11/19 at 18:53:17 by MNb »  

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RoleyPoley
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Re: New (2019) Kaufman Repertoire?
Reply #54 - 11/11/19 at 15:36:12
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I dont understand why he gives 3 variations of the Ruy Lopez. Are they completely covered, or do they only appear in part so as to provide a complete repertoire in the Spanish if you play lines from each of them?
  

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Re: New (2019) Kaufman Repertoire?
Reply #53 - 11/11/19 at 08:09:54
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Two of the three 'missing' lines aren't completely missing.

3.g3 in the Vienna is given a brief line in a note to game 18.3, and there is a full game (20.4) with the more or less equivalent Glek Four Knights.

The Giuoco Pianissimo is very briefly referenced at the start of the Italian chapter - "4. Nc3 Nf6 5. d3 h6 is a safe line for Black" - and I dare say most of us could just get on with it from this position without going horribly wrong in the next few moves.

I agree there's nothing on the symmetrical English without Nf3, which is an unfortunate omission as these lines are quite important.
  
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adal
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Re: New (2019) Kaufman Repertoire?
Reply #52 - 11/10/19 at 21:44:38
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What I don't understand: The lines missing from the first edition are still missing and this is not only minor stuff:

1. For Black: The Vienna Game with 3.g3
2. For Black: The pure symmetrical english wo Nf3 (1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nc6 and white plays e3/e4 ...)
3. For Black: The Italian Game with Nc3 (pianissimo)

By changing to 1.e4 at least the omissions on the d4 side of the repertoire have been fixed.
  
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MNb
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Re: New (2019) Kaufman Repertoire?
Reply #51 - 11/05/19 at 06:40:23
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Re: New (2019) Kaufman Repertoire?
Reply #50 - 11/05/19 at 06:23:51
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Y'all might be interested in an interview with Kaufman about the new (2019) repertoire book, posted 11/3/2019 on chess.com by NM Sam Copeland.

I tried to post the link but cannot since I have not made the required 15 forum posts yet. So you'll have to search for the interview on your own.
  
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an ordinary chessplayer
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Re: New (2019) Kaufman Repertoire?
Reply #49 - 11/05/19 at 00:51:49
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Stigma's Quote workaround on the first one, after I removed the begin- and end-pgn bbcodes.

mn wrote on 11/03/19 at 03:34:24:
Some analysis of the critical 10 Nh4! line in the c3/d3 Moller

[Event "Engine Test III"]
[Site "?"]
[Date "2019.??.??"]
[Round "?"]
[White "Stockfish 10"]
[Black "Komodo 12.3"]
[Result "1/2-1/2"]
[ECO "C78"]
[PlyCount "176"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bb3 d6 8. a4
Bb7 9. d3 h6 10. Nh4 $1 {I think this is the most annoying move for Black to
meet.} (10. Re1 O-O 11. Nbd2 Ne7 12. Nh4 Rb8 13. axb5 axb5 14. Nf1 d5 $11 {
Kaufman}) 10... Bc8 $5 {Untried, but the suggestion of various computers.} (
10... Nxe4 $2 {is lc0's recommendation for a while, but it doesn't seem to
work tactically.} 11. Qh5 $1 Ng5 12. Bd5 $1 O-O 13. axb5 $1 {Important to
throw in.} axb5 14. Rxa8 Bxa8 15. Ng6 $1 Re8 $2 {Best is to allow White to
capture on f8, with a large advantage.} 16. Bxg5 Qxg5 17. Bxf7+ $1 {This is
the point.} Kxf7 18. Nxe5+ {The Rook will be loose on e8 if Black plays, e.g.
18...Kg8.} Kf6 19. Qf7+ Kxe5 20. Qxe8+ Ne7 21. Qxa8 $18) (10... Ne7 11. Kh1 $5
{seems more pleasant for White to me.} (11. Qf3 {was the theme of some other
engine games, but I like the text move.})) (10... O-O 11. Qf3) 11. d4 {
Arguably the most challenging response.} (11. axb5 Bg4 12. Qe1 (12. Nf3 axb5
13. Rxa8 Qxa8 14. h3 Bd7 15. d4 Bb6 16. Re1 O-O 17. Be3 Qb7 18. Nbd2 Re8 19.
Bc2 Qa7 $11) 12... axb5 13. Rxa8 Qxa8 14. Be3 Qa7 $11) (11. Nf3 Bb7 ({or} 11...
Rb8)) 11... Ba7 {0.26/34 Blocking the a-file is of course important.} (11...
exd4 $2 12. axb5 Bg4 13. f3 $18) {Lc0 v0.22.0 2x RTX 2080 syzygy:} 12. axb5 ({
Lc0 v0.22.0 2x RTX 2080 syzygy:} 12. Nf3 O-O 13. axb5 axb5 14. Be3 Bg4 15. Qd3
Bxf3 16. gxf3 Qd7 17. Rd1 b4 18. Kh1 bxc3 19. bxc3 Bb6 20. Nd2 Rxa1 21. Rxa1
Qh3 22. Rg1 Nh5 23. Bd1 Ne7 24. Nc4 Ng6 25. Qf1 Qxf1 26. Rxf1 {0.14/41}) ({
Lc0 v0.22.0 2x RTX 2080 syzygy:} 12. h3 b4 13. Nf3 bxc3 14. bxc3 O-O 15. Be3
Na5 16. Bc2 (16. Nbd2 Nxb3 17. Qxb3 Re8 18. Rfe1 a5 19. Qc2 Bb7 20. Rab1 Bc6
21. d5 Bd7 22. c4 Bxe3 23. Rxe3 {0.10/45}) 16... Nc4 17. Bc1 Re8 18. Re1 Bb7
19. Bd3 d5 20. Bxc4 dxc4 21. d5 {0.11/43}) 12... axb5 13. Be3 Bd7 $5 (13... O-O
{This is the most natural move, but Black has to be ready to meet the
following tricky continuation:} 14. Ng6 (14. Na3 exd4 15. cxd4 Bb6 16. Nxb5
Rxa1 17. Qxa1 Nxe4) 14... Re8 15. dxe5 Bg4 16. Qd3 dxe5 17. Qxd8 Raxd8 18. Bxa7
Ra8 19. Nd2 Rxa7 20. Rxa7 Nxa7 21. Ra1 Nc8 22. h3 Bh5 23. Nh4 Rd8 24. Ndf3 Bxf3
25. Nxf3 Re8 26. Ra8 Nxe4 27. Nxe5 Ned6 28. f4 g5 29. g3 Kg7 30. Kf2 h5 31. Kf3
h4 32. gxh4 gxf4 33. Kxf4 Rh8 34. Nf3 Rh5 35. Kg4 Rc5 36. Nd4 Ne7 37. Ra6 Re5
38. Bc2 Rc5 39. Ra5 Re5 40. Kf4 Rh5 41. Kg3 Re5 42. Ra7 c5 43. Nf3 Re2 44. Bd3
Re3 45. Bb1 Re2 {0.24/41}) 14. Na3 (14. Qd3 O-O 15. Nf3 Qb8 16. h3 Qb7 17. Re1
Bb6 18. Nbd2 Rxa1 19. Rxa1 Re8 $11 {Stockfish 10-Komodo 12.3, Engine Test III
2019}) (14. dxe5 dxe5 15. Bxa7 Nxa7 {This position somehow looks vaguely
promising for White.}) (14. Nf3 Qb8) 14... O-O 15. Nxb5 (15. Qd3 Na5 16. Bc2 b4
17. Nc4 Nxc4 18. Qxc4 bxc3 19. bxc3 Bb6 $11) 15... Bb6 16. Qd3 Rb8 $1 17. Rfd1
{Now Black regains his pawn using tactics.} exd4 {The most direct, although} (
17... Ng4 {also seems to be good.}) 18. cxd4 Ne5 $5 19. dxe5 Bxb5 20. Qc2 Ng4
21. Bxb6 Qxh4 22. h3 cxb6 23. hxg4 Rbc8 24. Qd2 dxe5 $11 {I would even say
Black is a tiny bit better here.} 25. f3 Bc4 26. Bxc4 Rxc4 27. Rac1 Rd4 28. Qf2
Qg5 29. Qc2 Rfd8 30. Rxd4 exd4 31. Rd1 b5 32. Qc1 Qe7 33. Rd3 Qd6 34. g5 h5 35.
f4 g6 36. Kh2 Re8 37. e5 Qd5 38. Qd1 Rd8 39. Qe1 Rd7 40. Kg1 Kf8 41. Qb4+ Kg7
42. Qd2 Qe4 43. Kh2 Kf8 44. Qb4+ Kg8 45. Qd2 Rd5 46. Kg3 Kf8 47. Qb4+ Ke8 48.
Qd2 Kd7 49. Kf2 Ke6 50. Kg3 Kf5 51. Kh3 Rd7 52. Kg3 Rd5 53. Kh3 Rd8 54. Kg3 Rd7
55. Kh3 Rd5 56. Kg3 Ke6 57. Kh2 Kd7 58. Kh1 Ke8 59. Kh2 Rd8 60. Kg3 Kf8 61. Kh4
Kg7 62. Kg3 Kf8 63. Kh4 Kg8 64. Kg3 Kh7 65. Kh2 Rd7 66. Kg3 Rd8 67. Kh3 Kh8 68.
Kh2 Kg8 69. Kg3 b4 70. b3 Rd7 71. Kh2 Rd8 72. Kg3 Rd7 73. Kh4 Qf5 74. Kg3 Qg4+
75. Kf2 Qh4+ 76. Kg1 Ra7 77. Qc1 Ra2 78. Qf1 Qg4 79. Rxd4 Qg3 80. Rxb4 h4 81.
e6 fxe6 82. Kh1 Rf2 83. Rb8+ Kf7 84. Rb7+ Kf8 85. Rb8+ Ke7 86. Rb7+ Kf8 87.
Rb8+ Ke7 88. Rb7+ Kf8 1/2-1/2


  
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mn
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Re: New (2019) Kaufman Repertoire?
Reply #48 - 11/04/19 at 21:44:10
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ReneDescartes
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Re: New (2019) Kaufman Repertoire?
Reply #47 - 11/04/19 at 18:44:21
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Me too. The link text itself contains the entire game; presumably a mistake is there somewhere.
  
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Lauri Torni
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Re: New (2019) Kaufman Repertoire?
Reply #46 - 11/04/19 at 17:52:51
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I cannot download this pgn-file. I get:

Request-URI Too Large
The requested URL's length exceeds the capacity limit for this server.
  

1.Nf3! -  beat your opponent by killing his zest for life.
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mn
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Re: New (2019) Kaufman Repertoire?
Reply #45 - 11/03/19 at 03:34:24
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Some analysis of the critical 10 Nh4! line in the c3/d3 Moller

  
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