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Very Hot Topic (More than 25 Replies) Keres System against English 2.g3 (Read 62661 times)
Glenn Snow
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Re: Keres System against English 2.g3
Reply #33 - 06/20/04 at 20:33:29
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I'm not sure that after 1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.e3, planning Ne2 and d4, is really challenging to Black since surely he would reply 4...d5.  As Tony recently pointed out, the position is a reversed Alapin Silician with White committed to a fianchetto variation.  With that in mind, White could also try 4.Nf3 e4 5.Nd4 since Black has been using this a tempo down with decent results the last few years.  Or perhaps even 4.d3 d5 5.Nf3 but this especially seems like one of those variations that are best suited for counter attack than trying to get an advantage with White (this may hold true of 4.Nf3 as well).  It just may be that if Black is theoretically well prepared White must use the 2.Nc3 move order if he hopes to try for an edge.
  
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Billy_Cember
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Re: Keres System against English 2.g3
Reply #32 - 06/20/04 at 19:32:35
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Maybe, since looking at the analysis, it looks like Black definately has equality, maybe, instead of the immediate 4.d4, White could play more slowly with e3, Ne2, and eventually d4, capturing on d4 with the knight instead of the queen.
  
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Re: Keres System against English 2.g3
Reply #31 - 06/20/04 at 10:40:31
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Incindentally, Kosten has some important material on this variation.  I had brought up the topic of 1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.d4 exd4 5.Qxd4 Na6, before I became a subscriber to Chesspublishing.com.  I think in an early post I had given, 6.Nf3 Bc5 7.Qe5+ (Kosten writes that this is the only try for advantage instead of 7.Qd1 which gives Black more options, but see his annotations.) 7...Qe7?.  As it turns out 7...Qe7 is probably the better move after which White doesn't have any advantage at all according to Tony's analysis.  If anybody has any suggestions which alter this assessment please let me know.  Also, is there any benifit to playing a different sixth move?  (I kinda doubted it, but thought I'd ask.)
  
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Billy_Cember
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Re: Keres System against English 2.g3
Reply #30 - 02/06/04 at 12:09:26
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Yeah. It is surprising that 5 ... Na6 isn't played more. Maybe, instead of 9. 0-0, white should play 9. a3 with a future b4 allowing the bishop to b2 and with the gaining of space on the queenside.
  
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Re: Keres System against English 2.g3
Reply #29 - 02/05/04 at 19:00:19
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I think this line of analysis shows that 10.Na4 is in fact risky and that White should prefer 10.b3.  Certainly if White is the one who seems to be looking for equality.  Considering that Black's position can still be considered playable after that (10.b3), then I'm surprised we haven't seen more of 5...Na6!?
  
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Re: Keres System against English 2.g3
Reply #28 - 02/05/04 at 17:00:50
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Yeah, your right, this gains a big advantage. Instead of 18 e3 (which is a big mistake), white should play 18. Be3 with equality
  
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Re: Keres System against English 2.g3
Reply #27 - 02/05/04 at 00:22:25
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I was careless again.  But why does black have to give up a pawn?  Why not 18...a4?  Doesn't this preserve black's positional advantages?  Maybe black doesn't have an immediate tactical refutation (which wasn't my intended meaning of "cashing in," though I got a little carried away), but I think he can still exploit white's weaknesses through positional play.  I don't think white can count on utilizing the bishop pair advantage, when the c1 bishop is so passive.  (For example, black could play 18...Nd3 immediately, but I think black can play for more than equality.)  18...a4 does concede the b4 square, but I still think black has a grip.

For example, after
18.e3 a4 19.Qb4 (with idea of protecting the knight to play e4) 19...b5 20.f3 Nd6 21.e4, I think 21...Ncxe4 is strong.  Also I think 21.Rd1 can well met by 21...Nb3, with the idea 22.e4 Nxe4.  If this works, I think black is doing quite well.
  
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Re: Keres System against English 2.g3
Reply #26 - 02/04/04 at 20:06:33
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After 18. e3, white's position is definately not atrocious and black has no way of "cashing in" on it. Even though white has his weaknesses, black has two equally important weaknesses. Firstly, White has an extra pawn which after White soaks up the pressure becomes a major advantage in the endgame. Also, White has the bishop pair which become strong after White soaks up the pressure. Even though Black is much more active, he has no way to cash in on the win because White has enough recourses to defen and then even counter attack.

As for 21 ... b6, its a mistake. This is because after

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4
Na6 6. Nf3 Bc5 7. Qd1 O-O 8. Nc3 Re8 9. O-O d6 10. Na4 Bf5 11. a3 d5 12. Qb3 Rb8 13. Nxc5  Nxc5 14. Qb4 Nfe4 15. Nd4 a5 16. Qe1 Bg6 17. cxd5 Qxd5 18. e3 Nb3 19. Nxb3 Qxb3 20. Qxa5 Rbd8 21. f3 b6
Then
22. Qb4! Nc5 (22... Qxb4 activates White's rook and kills most of Black's pressure, White has an advantage) 23. e4 f5 24. Qxb3+ Nxb3 25. Bg5 White is winning.
White's bishops are much better than Black's bishop and knight 25 ... Rd6 26. Rad1
Rde6 (26... Red8 27. Rxd6 Rxd6 White is way ahead) 27. Bh3 White is winning
  
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Re: Keres System against English 2.g3
Reply #25 - 02/04/04 at 19:18:34
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In your analysis, 21...b6 improves on 21...Ra8:

1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.d4 exd4 5.Qxd4 Na6 6.Nf3 Bc5 7.Qd1 0-0 8.Nc3 Re8 9.0-0 d6 10.Na4 Bf5 11.a3 d5 12.Qb3 Rb8 13.Nxc5 Nxc5 14.Qb4 Nfe4 15.Nd4 a5 16.Qe1 Bg6 17.cxd5 Qxd5 18.e3 (With white's weaknesses on b3 and d3, I consider white's position to be atrocious.  Now I think it is simply a matter of how black "cashes in.") 18...Nb3 19.Nxb3 Qxb3 20.Qxa5 Rbd8 21.f3 (looks grim to me.) 21...b6 (improves on 21...Ra8.  The rook is already on a great square!) 22.Qe1 [22.Qa7? Nc5 White's really bad here.  23...Rd7 is a major threat.] 22...Nc5 23.Qc3 Qxc3?! This is not really that great a move, but this shows black can immediately gain the pawn back with a favorable endgame. [23...Qa4! significantly improves: 24.Qb4 Qc2 (gaining a move) 25.Qc2 Nb3-+] 24.bxc3 Nb3 25.Rb1 Nxc1 26.Rbxc1 Rxe3

  
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Billy_Cember
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Re: Keres System against English 2.g3
Reply #24 - 02/03/04 at 21:15:55
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Yeah your right. I think that this means that 15. cxd5 is a mistake. I think that instead, that White should play 15. Nd4. I think that this gives equality. For example,


1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4
Na6 6. Nf3 Bc5 7. Qd1 O-O 8. Nc3 Re8 9. O-O d6 10. Na4 Bf5 11. a3 d5 12. Qb3 13. Nxc5  13... Nxc5 14. Qb4 Nfe4

15. Nd4 a5 16. Qe1 Bg6

(16... Bg4 17. cxd5 Qxd5 18. Be3 White is winning)

17. cxd5 Qxd5 18. e3 Nb3 19. Nxb3 Qxb3 20. Qxa5
20... Rbd8 21. f3 Ra8 22. Qe1 Nc5 23. e4 Nd3 24. Qe2 Rad8 25. Rd1 c5 26. a4 equal  White will activate his rook via the 3rd rank
  
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Re: Keres System against English 2.g3
Reply #23 - 01/29/04 at 22:32:45
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What about 15...a5?  After

1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.d4 exd4 5.Qxd4 Na6 6.Nf3 Bc5 7.Qd1 0-0 8.Nc3 Re8 9.0-0 d6 10.Na4 Bf5 11.a3 d5 12.Qb3 Rb8 13.Nxc5 Nxc5 14.Qb4 Nfe4 15.cxd5 a5 16.Qc4 [16.Qd4 Nb3; 16.Qe1 Nb3] 16...cxd5 17.Qc2 [17.Qb5 Bd7; 17.Qd4 Nb3] 17...Rc8 I like black.

White's queen seems to be in an awkward positon.
  
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Re: Keres System against English 2.g3
Reply #22 - 01/29/04 at 17:06:59
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14 ... Nfe4 is a move I didn't even think of. Actually, I think it is the best move in the position. After analysis, it looks like Black gains equality, so thus, 12 ... Rb8 isn't a mistake.

After  1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4
Na6 6. Nf3 Bc5 7. Qd1 O-O 8. Nc3 Re8 9. O-O d6 10. Na4 Bf5 11. a3 d5 12. Qb3 Rb8 13. Nxc5 Nxc5 14. Qb4 Nfe4


15. cxd5 This allows White's queen to move to c4 or d4 in case of a5. Maybe this isn't the best move though; its not what Fritz 8 recommends. Fritz is wrong sometimes though. 15 ... Qxd5 16. Bf4 Rbd8 17. Nh4 Bc8

(17... Be6?!  18. Be3 b6 (18... Bc8 19. Rac1 Na6 20. Qa4 Qe5 21. Rfd1 White is winning, he will soon take a material advantage by capturing one of
Black's queenside pawns.) 19. Rac1 White will continue to build his pressure. This gives White an advantage)

18. f3 Nd2 19. e4 Qd4+ 20. Qxd4 Rxd4 21. Rad1 Ndb3 22. Rxd4 Nxd4 23. Be3 equal
  
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Re: Keres System against English 2.g3
Reply #21 - 01/27/04 at 02:21:31
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I don't have time at the moment to give a detailed reply, but after 14.Qb4 Nfe4 is the first move that "pops out at me."  I think this worth a look.  One immediate threat is ...a5 followed by ...Nb3.  At the moment, the queen's position seems awkward to me.  I think this possibly illustrates what seems to me to be one of the key ideas of this system for black:  if white goes after bishop pair with Na4, then black can seek compensation through the activity of the knights.
  
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Billy_Cember
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Re: Keres System against English 2.g3
Reply #20 - 01/26/04 at 20:12:04
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Now, after further analysis, it looks like 12. Rb8 doesn't give full equality


After  1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4
Na6 6. Nf3 Bc5 7. Qd1 O-O 8. Nc3 Re8 9. O-O d6 10. Na4 Bf5 11. a3 d5 12. Qb3 Rb8
Instead of what I suggested earlier, I think White should play
13. Nxc5 Nxc5 14. Qb4   

A.  14... Ne6 15. cxd5 Nxd5 16. Qa4 Qc7 17. Nh4 b5 18. Qd1 Ne7 19. Nxf5 Nxf5 20. b4
Rbd8 White has the better chances. The game isn't close to over though.

B.  14... b6 15. Nd4 Qd7 16. Nxf5 Qxf5 17. cxd5 Nxd5
18. Qc4 White is winning; his bishops are far superior to Black's knights
  
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Re: Keres System against English 2.g3
Reply #19 - 01/25/04 at 23:11:15
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I definitely like 19...Rexd5 20.Bb6 R5d7 21.Rad1! for white! Smiley  The more I look at 12...dxc4, the less I like it for black.  

Looking back at move 12 though, it seems like 12...Rb8 is fully satisfactory.  I notice in a line you gave earlier, 13.cxd5 Nxd5 14.Nh4 you only considered 14...Bc8 and 14...Be6, but one of the first moves (along with 14...Be6) that comes to my mind is 14...Be4, after which it seems like black has a decent game.  But after 14...Be6 15.Rd1 (the suggested move), the simple 15...Qe7 looks awkward for white to me.  
  
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