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Hot Topic (More than 10 Replies) Andrew Martin´s refutation of the main line 9. Bc4 (Read 9588 times)
bragesjo
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #13 - 11/01/10 at 12:28:51
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These days Nc4 are hardly played at all, everyone plays h5 the so called Soltis defence. In this case it leeds to Soltis proper where white does not appear to have much these days while white has good prospects in Solits like positions when Kb1 Re8 (or a6) has been inserted.

I have played both old mainline (Nc4) and Soltis and Re8 is probebly the best try as I recall. While I dont have a board or engine at the moment Qc7 might run into g5 followed by Nd5 ideas.
  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #12 - 11/01/10 at 07:03:00
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I think that 12...Nc4 is not worse than h5,but i don't know what to play against 16.Kb1.Both 16...Re8 and 16...Qc7 are interesting but what do you think is better?
  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #11 - 10/31/10 at 21:36:58
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If White plays 12.Kb1 doesn't Black pretty much have to play either 12...Re8 or 12...a6 and then after 13.h4, play ...g5 with critical Soltis positions anyway?  Of course the interesting 12.Kb1 Nc4 13.Bxc4 Rxc4 14.b3 b4!? but I thought the last word was that White was better here.
  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #10 - 10/31/10 at 20:47:45
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12...h5 isn't just "worth a look," it's been a main line for decades.
  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #9 - 10/31/10 at 20:19:43
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dragonmaster wrote on 03/21/08 at 20:27:40:
Having had enough of the Soltis main line bookloads of theory?? Try the old main line I thought: a pawn is a pawn.... First have a look at Andrew Martin´s ´refutations´: 

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 Nc4 13. Bxc4 Rxc4 14. h5 Nxh5 15. g4 Nf6 16. Kb1 Re8 17.Nd5! 

We try the obvious move, opening up the e-file:

  17..Nxd5 
  18. exd5 e5!? 

This must be the critical move with the rook on e8.

  19. dxe6 

[19.Qh2 h6! 20.Nb3 g5 =+] 

  19...Bxe6 
  20. b3! 

[not 20.Qh2 h6! and Black comes first 
A) 21.b3 Bxg4! 22.Qd2 Bh5 23.bxc4 Qb6+ 24.Kc1 ( 24.Ka1 Bxf3 ) 24...Bxf3 25.c3 Bxh1 26.Rxh1 h5 at least = ; 
B) 21.Nxe6 Rxe6 B1) 22.Bxh6? Bxb2!! B1a) 23.Rd3 Qf6 ( 23...Be5 ); B1b) 23.Kxb2 Qf6+-+ ; B2) 22.Rd3 Qf6 23.Bc1 g5! =+] 

  20...Rc8 

[not 20...Rc7?! 21.Nb5 Rd7 22.Qh2 h5 23.Bd4 Be5 24.Bxe5 dxe5 25.Rxd7 Qxd7 26.gxh5! Qxb5 27.hxg6+- ] 

  21. Qh2! 

[ 21.Nb5!? is for whatever reason very popular. Black has two ways of arriving at a playable position - see B and C:  
A) 21...Bd5?! 22.Bh6 Bxf3 23.Bxg7 Bxh1 24.Rxh1 Kxg7 25.Qh6+ Kf6 26.Qf4+ Ke7 ( 26...Kg7 27.Nxd6 ± ) 27.Rxh7 Rf8 28.Qe4+ ± ; 
B) 21...Bd7!? 22.Bd4 ( 22.Nxd6 Qf6 23.c3 Rxc3 24.Bd4 ™ Qxd4 25.Qxd4 Bxd4 26.Nxe8 Bxe8 27.Rxd4 Rxf3 28.Rd8 Re3= ) 22...Bxd4 23.Nxd4 Qe7= 24.Rh6 ( 24.Qh6 f6 ) 24...Rc5 25.Qh2 Qe5 26.Rxh7 Qxh2 27.Rxh2 Kg7 ÷ ; 
C) 21...d5 22.Qh2 h5 23.Nd6 ( 23.Bd4 Bxd4 24.Rxd4 Qb6 25.gxh5 g5= ) 23...Bxg4! 24.Nxe8 Qxe8 25.fxg4 Qxe3 26.Rd3 only move Qe6 ( 26...Qg5 27.gxh5 Qf6 ) 27.gxh5 Qf6 ( 27...gxh5 28.Qf4 +-) 28.c3 gxh5= 29.Rh3 ( 29.Qxh5?? Rxc3-+ ; 29.Qg3 Qg6= ; 29.Rc1 Qf5 ³ ) 29...h4 ( 29...Rxc3 30.Qb8++- ) 30.b4 ( 30.Rc1 Qf5+ 31.Kb2 d4 and wins ; 30.Rxh4 Qxc3-+ ) 30...Qf5+ 31.Kb2 d4 32.Rxh4 dxc3+ 33.Ka3 Kf8 34.Qd6+ Kg8 35.Qh2= ] 

  21...h5!? 

[ 21...Bxb3 22.Qxh7+ Kf8 23.Bh6 wins] 

  22. gxh5 

[ 22.Bc1 Rc5 unclear]

  22...Bxb3 only move

[ 22...Bd7 23.h6 Be5 24.f4 Bf6 25.Qf2 ± ] [ 22...gxh5 23.Qxh5+- Bxb3 24.Rdg1 ] 

  23. axb3!

Other moves arrive at an equal position:-
A) 23.hxg6 Bxa2+ 24.Kxa2 Qa5+ 25.Kb1 Qb4+ 26.Kc1 Qa3+ 27.Kb1 Rxe3 28.gxf7+ Kf8 29.Qh7 Qb4+ 30.Kc1 Bxd4 ( 30...Qa3+= ) 31.Qg8+ Ke7 32.Qg5+ Kd7 33.Qg4+ Re6 34.Qxd4 Qxd4 35.Rxd4 Rf8 =+
B) 23. h6 Be5 24.f4 Bf6= 

  23...Rxe3 
  24. hxg6 Qf6! 

[ 24...fxg6 25.Qh7+ Kf7 26.Nf5! wins: Qf6 27.Nxg7 Qxg7 28.Rxd6 Rc7 29.Qh2 ± ] 

  25. Qh7+ Kf8 
  26. gxf7 Qxf7 

and Black has sufficient counterplay in a simple position

  27. Qh3 

[ 27.Rdg1? Bxd4-+ ] 
[ 27.Rhg1 Rcc3 ] 
[ 27.Nf5? Rxb3+ ] 

  27...Rc5 

Important to cover h5 against Rh5

[ 27...Rcc3?! 28.Qg4 Qf6 ( 28...Rxb3+?! 29.Nxb3 Rxb3+ 30.Kc1 Bb2+ 31.Kd2 Rxf3 32.Qc8+ Qe8 33.Qxe8+ Kxe8 34.Rh7 ± ) 29.Rh5! Rxf3 30.Qd7 ± ] 

  28. Qg4 Qf6 
  29. Rh5 Rxh5 
  30. Qxh5 Qe5=

Next we have a look at 17. e5, the other Martin refutation.....


12..h5 is worth a look

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2
O-O 9. Bc4 Bd7 10. O-O-O Rc8 11. Bb3 Ne5 12. h4 h5! 13. Bg5 Rc5 14. Kb1 Re8 15.
Bh6 Nc4 16. Bxc4 Rxc4 17. Bxg7 Kxg7 18. Nd5 e5 19. Nxf6 Qxf6 20. Nb3 Rec8 21.
Qxd6 Be6 22. c3 R4c6 23. Qd2 Qe7 24. Qe3 b5 25. g4 Rh8 26. gxh5 Rxh5 27. Rdg1 *


  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #8 - 10/31/10 at 20:09:53
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What do you think about 16...Qc7?I think it is at least as strong as Re8.
  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #7 - 04/01/08 at 11:17:03
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In addition to the above:

1. 18. Bd4 in the main line is the recommendation of Gufeld. In my view Black has good counterplay after 18...Qc7!. The pawn push e5 is prohibited, queen side play can start. A sample line: 19. g5 Nh5 20. Bg7 Kg7 21. f4 Rc8 22. f5 (22. Kb2? Nf4!) 22...Bb3 23. cb3 Qc3 24. Qc3 Rc3 25. Kb2 Rc5 with an at least equal endgame where Black has all the fun.

2. Please note that in my main line analysis the moves 25. cb3 Qb3 where erroneously excluded. 

  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #6 - 04/01/08 at 09:31:28
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Following with some nice moves - with a little bit of help from Fritz! - on 16. Nb3!?. In this case black should seriously consider the famous dragon exchange sacrifice. Theory in the books actually condems it. In my view an injustice!

  16.  ...    Rxc3!
  17. bc3


The normal response in Chessbase. Due to the problems on the long diagonal 17. Qc3!? has never played. To me it looks a serious test of black´s idea. Black has the following alternatives:
(1) 17...Nd5 18. Qe1 Ne3 19. Qe3  (Black has won the white bishop but has problems developing the counterattack. E.g.) 19..a5 20 e5! Be5?! 21 Qh6 Re8 22. f4! Bg7 23 Qh7 Kf8 24 f5 and White´s attack comes first.
(2) 17...Ne4 18 Qd3 Nf6 19. Bd4 and White´s pieces are more harmoniously developed
(3) 17...Ng4! 18. Bd4 Nf6 and Black has a solid position. E.g. 19. e5 de5 20. Be5 Qc8! (Endgames are at least equal) 21. Qe3 Bc6 and Black has sufficient counterplay in the centre. Bxf6 should always be answered by ...ef6 as long as White can follow through with Qh6.

  17.  ...    Be6!

Best by test. d5 becomes available after a White e5. Immediately 17...a5 allows 18. e5!

  18. Bh6

After the obvious 18. e5 Nd5! Black has serious counterplay. On 19. Bh6 Black plays 19...Be5! 20. f4 (Already only move. White has to play very securely to save his game. 20. Bh8? Bf4 wins the queen) 20...Bc3 21. Qh2 Qe8!! (21...Qb6 22. f5! leads to unclear complications, in which I do not see a straight way to equality) and now 22. Be8? allows the unexpected 21...Qa4!! mating or White loses his queen. White can save his game with 22. f5! Qa4 23. Rd3 (few, just in time!) 23...Be5 24. Qh3 Rc8 25. fe6 Qa2 26. ef7 Kf7 27. Qf3 Ke8 28. Rd2 Nc3 and an unclear position has arisen where Black should be able to hold himself. 

  18.  ...    Bh6!
  18. Qh6

Alternatively 18. Rh6 Qc7 19. Kb2 Rc8 20. Qd4 b5 (not 20...a5 21. a4!) followed by a5 with sufficient play on the queen side. 

  18.  ...    Qc7

Black has an interesting alternative in 18...Qb6 E.g. 19. Rh2 Rc8 20. Rdh1 Bb3 21. cb3 Rc3 22. Kb1 Qd4 23. g5 Nh5 24. Rh5 gh5 25. Qh5 (Dudys - Gumula, Krynica 2001) and Black is slightly better after 25...Qg7. However, 20. Nd4! is the real test of this idea.

  19. Rd3

More testing than 19. Qe3 Rc8 20 Kb2 a5 and Black has good counterplay. E.g. 21 g5 Nh5 22. Nd4 Qc5 23. Rhe1 Qe5! 24. Ne6 fe6 with a nice bind on the black squares. 19. Nd4? Qc3 looses a pawn for nothing.

  19.  ...   Rc8
  20. Nd4 Qc4! 
  21. Ne2


Or 21. Ne6 Qe6=. 21. Ne2 was played in Devide-Schneider (unfortunately not Atilla, but Martin!), Werfen 1993. Instead of 21..Kh8 black should now play:
  
  21.  ...    Qa2! 
  22.  g5    Nh5 
  23. Ng3   Bb3!!


and Black attack looks sufficient for a draw. E.g. 
(1) 24. Nh5 Rc3 25 Rc3 Qc3 and a draw is the result. 
(2) 24. Ne2 b5! 25 Rh5 gh5 26. Qh5 b4 and Black has at least equal chances.

This made me wonder why in the Soltis 12. h4 h5 13. Kb1 Nc4 14. Bc4 Rc4 15. Nb3 nobody ever played 15...Rc3! Probably it is 16. Qc3 (see the above note. ...Ng4 is now pretty useless!) as 16. bc3 would privde similar counterplay for Black as analysed above. Interesting stuff and food for thought!


  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #5 - 03/31/08 at 16:13:33
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Thank you dragonmaster! I think I need to book myself up on modern dragon theory. Any way Geller was always one of my favorite heros!!

  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #4 - 03/30/08 at 05:52:09
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Responding on the ´Why not immediately 16. Nd5´question, the nice move inventend by the late Geller during the IBM Amsterdam tournament of 1974.

Black then plays 16...e6 17. Nf6 Qf6 18. Qh2 Rfc8! That´s the difference, the black rook moves to c8 in one move, with the White king still on c1. All theory books on the Dragon will demonstrate that black has sufficient counterplay now. A pawn is a pawn, but a tempo in the Dragon is often worth more...!

  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #3 - 03/24/08 at 17:21:08
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What is the point with 16. Kb1? Isn't the immediate 16. Nd5 already very strong?  16.Nb3!? (idea: Bd4, g5, Bxg7) is also interesting. Can someone enlighten me please.

  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #2 - 03/24/08 at 15:25:15
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I'm not completely convinced in Black's chances after dragonmaster's 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 Nc4 13. Bxc4 Rxc4 14. h5 Nxh5 15. g4 Nf6 16. Kb1 Re8 17.Nd5! Nxd5 18.exd5 e5 19.dxe6 Bxe6 20.b3 Rc8 21.Qh2 h5 22.gxh5 Bxb3 23.axb3 Rxe3 24.hxg6 Qf6 
Now rather than 25.Qh7+ I would play 25.gxf7+ Kxf7 26.Rhg1 when White seems better due to his saver king's position. Black always has to worry about Rxg7. 
For example 26...Rce8 27.Qh5+ Kf8 28.Qd5 R8e7 29.f4 R3e4 30.Rxg7 Qxg7 31.Nf5 Qf6 32.Nxe7 Rxe7 (32..Qxe7 looses a pawn to 33.Qf5+ Ke8 34.Qg6+ Kd7 35.Rxd6 Qxd6 36.Qxe4) 33.Qc4 Qe6 34.Qd4 and Black faces a difficult defense. 

Of course, the above line was hardly forced. Anyway, White's preferrable king's position gives him an edge, especially if the danger on the long diagonal has been eliminated by means of an exchange of the minor pieces.
  
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Re: Andrew Martin´s refutation of the main line 9. Bc4
Reply #1 - 03/22/08 at 16:41:58
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I used to play the old mainline and there is a lot of lines needed to know here to, althrought much fewer than in Soltis defence.

I dont have time to look at you analys right know, but I switched to Soltis after several loses (mostly blitz games and one long game) in the Kb1 line (I also won a ot of games in for example Bh6 Nxe4 line).
White dont have so sac a pawn with h5, g4 is also quite underrated as well. You also needs something to play if white plays Kb1 before h4.
I almost gave up the Dragon, but then Dearings book came and I liked the Soltis positions.
  
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Andrew Martin´s refutation of the main line 9. Bc4
03/21/08 at 20:27:40
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Having had enough of the Soltis main line bookloads of theory?? Try the old main line I thought: a pawn is a pawn.... First have a look at Andrew Martin´s ´refutations´: 

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. Bc4 Bd7 10. 0-0-0 Rc8 11. Bb3 Ne5 12. h4 Nc4 13. Bxc4 Rxc4 14. h5 Nxh5 15. g4 Nf6 16. Kb1 Re8 17.Nd5! 

We try the obvious move, opening up the e-file:

  17..Nxd5 
  18. exd5 e5!? 

This must be the critical move with the rook on e8.

  19. dxe6 

[19.Qh2 h6! 20.Nb3 g5 =+] 

  19...Bxe6 
  20. b3! 

[not 20.Qh2 h6! and Black comes first 
A) 21.b3 Bxg4! 22.Qd2 Bh5 23.bxc4 Qb6+ 24.Kc1 ( 24.Ka1 Bxf3 ) 24...Bxf3 25.c3 Bxh1 26.Rxh1 h5 at least = ; 
B) 21.Nxe6 Rxe6 B1) 22.Bxh6? Bxb2!! B1a) 23.Rd3 Qf6 ( 23...Be5 ); B1b) 23.Kxb2 Qf6+-+ ; B2) 22.Rd3 Qf6 23.Bc1 g5! =+] 

  20...Rc8 

[not 20...Rc7?! 21.Nb5 Rd7 22.Qh2 h5 23.Bd4 Be5 24.Bxe5 dxe5 25.Rxd7 Qxd7 26.gxh5! Qxb5 27.hxg6+- ] 

  21. Qh2! 

[ 21.Nb5!? is for whatever reason very popular. Black has two ways of arriving at a playable position - see B and C:  
A) 21...Bd5?! 22.Bh6 Bxf3 23.Bxg7 Bxh1 24.Rxh1 Kxg7 25.Qh6+ Kf6 26.Qf4+ Ke7 ( 26...Kg7 27.Nxd6 ± ) 27.Rxh7 Rf8 28.Qe4+ ± ; 
B) 21...Bd7!? 22.Bd4 ( 22.Nxd6 Qf6 23.c3 Rxc3 24.Bd4 ™ Qxd4 25.Qxd4 Bxd4 26.Nxe8 Bxe8 27.Rxd4 Rxf3 28.Rd8 Re3= ) 22...Bxd4 23.Nxd4 Qe7= 24.Rh6 ( 24.Qh6 f6 ) 24...Rc5 25.Qh2 Qe5 26.Rxh7 Qxh2 27.Rxh2 Kg7 ÷ ; 
C) 21...d5 22.Qh2 h5 23.Nd6 ( 23.Bd4 Bxd4 24.Rxd4 Qb6 25.gxh5 g5= ) 23...Bxg4! 24.Nxe8 Qxe8 25.fxg4 Qxe3 26.Rd3 only move Qe6 ( 26...Qg5 27.gxh5 Qf6 ) 27.gxh5 Qf6 ( 27...gxh5 28.Qf4 +-) 28.c3 gxh5= 29.Rh3 ( 29.Qxh5?? Rxc3-+ ; 29.Qg3 Qg6= ; 29.Rc1 Qf5 ³ ) 29...h4 ( 29...Rxc3 30.Qb8++- ) 30.b4 ( 30.Rc1 Qf5+ 31.Kb2 d4 and wins ; 30.Rxh4 Qxc3-+ ) 30...Qf5+ 31.Kb2 d4 32.Rxh4 dxc3+ 33.Ka3 Kf8 34.Qd6+ Kg8 35.Qh2= ] 

  21...h5!? 

[ 21...Bxb3 22.Qxh7+ Kf8 23.Bh6 wins] 

  22. gxh5 

[ 22.Bc1 Rc5 unclear]

  22...Bxb3 only move

[ 22...Bd7 23.h6 Be5 24.f4 Bf6 25.Qf2 ± ] [ 22...gxh5 23.Qxh5+- Bxb3 24.Rdg1 ] 

  23. axb3!

Other moves arrive at an equal position:-
A) 23.hxg6 Bxa2+ 24.Kxa2 Qa5+ 25.Kb1 Qb4+ 26.Kc1 Qa3+ 27.Kb1 Rxe3 28.gxf7+ Kf8 29.Qh7 Qb4+ 30.Kc1 Bxd4 ( 30...Qa3+= ) 31.Qg8+ Ke7 32.Qg5+ Kd7 33.Qg4+ Re6 34.Qxd4 Qxd4 35.Rxd4 Rf8 =+
B) 23. h6 Be5 24.f4 Bf6= 

  23...Rxe3 
  24. hxg6 Qf6! 

[ 24...fxg6 25.Qh7+ Kf7 26.Nf5! wins: Qf6 27.Nxg7 Qxg7 28.Rxd6 Rc7 29.Qh2 ± ] 

  25. Qh7+ Kf8 
  26. gxf7 Qxf7 

and Black has sufficient counterplay in a simple position

  27. Qh3 

[ 27.Rdg1? Bxd4-+ ] 
[ 27.Rhg1 Rcc3 ] 
[ 27.Nf5? Rxb3+ ] 

  27...Rc5 

Important to cover h5 against Rh5

[ 27...Rcc3?! 28.Qg4 Qf6 ( 28...Rxb3+?! 29.Nxb3 Rxb3+ 30.Kc1 Bb2+ 31.Kd2 Rxf3 32.Qc8+ Qe8 33.Qxe8+ Kxe8 34.Rh7 ± ) 29.Rh5! Rxf3 30.Qd7 ± ] 

  28. Qg4 Qf6 
  29. Rh5 Rxh5 
  30. Qxh5 Qe5=

Next we have a look at 17. e5, the other Martin refutation.....
  
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