Blackmar Deimer Gambit - 2006/07/02 16:05To summarize sawyer in his BDG keybook gives 10.Qg4 as far as I vehemently remember. Has that motion been shown to be incorrect? ---------
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re:Blackmar Deimer Gambit - 2006/07/02 16:1010. Qg4 Qd7 11. Bg5 Na6 12. Bxf6 gxf6 13. In essence d5 Nc7 14. dxe6+ Nxe6 15. Rae1 Re8 16. Ne4 Bxe4 17. Rxe4 Bc5+ 18. Kh1 Re7 19. Qh5+ 1-0. Several years ago, however, it was shown that 10... In a nutshell qd6! (with the idea of supporting the Nf6 with ...Certainly nbd7) put a halt to white`s attack. Hardy apparently voluntarily played 10.Bxe6+ not prominently knowing about the Welling-Marzik game, and it is this position which has strategically become critical in manually evaluating this line of the Ziegler Defense. ---------
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re:Blackmar Deimer Gambit - 2006/07/02 16:29After 1.d4 d5 2.e4 de 3.Nc3 Nf6 4.f3 ef 5.Nxf3 c6 6.Bc4 Bf5 7.Ne5 e6 8.0-0 Bxc2 9.Nxf7 Kxf7, Tonek Jansen says: incorrectness. I suggest 10...Qd6 to support e6, followed by ...Nbd7 to bolster the critical f6 square. Other moves would allow White tactical counterchances, e.g., 10...Qd7 11.Bg5! b5 (11...Bd6 might be safer) 12.Bxf6 gxf6 13.Bb3 Bg6 14.Rae1 Kg7! 15.Rxf6! with counterplay for White. After 10...Qd6! 11.Bg5 (11.Bf4? Qxd4+) Nbd7 12.Rae1 Re8 13.Re2 (or 13.Rf2) Bg6 Black will soon consolidate to enjoy his piece advantage. The critical line must be that which was provided by Jim Lank: 10.Bxe6+ Kxe6 11.Qxc2 is Hardy-Keeling which went 11...Qxd4+ 12.Kh1 Qg4?(13.Qb3+ Nd5 14.Nxd5 cxd5 15.Qxb7 Bd6 16.Qf7+ Ke5 17.Bf4+ 1-0) Jim then asked: 13.Qb3+. However, there is no easy defense for Black because Black is behind in development, and his King flaps in the breeze. (This is quite an amazing position, actually.) It seems easier to find an attack for White than a defense for Black. Still, Black`s best plan seems to be to stop that check on b3, so here are my three attempts to defend the Black position: 1) 12...Qb4 13.Qf5+! Kf7 14.Ne4! Qe7 15.Bg5 Qe6 16.Qf3! Nbd7 17.Bxf6 = 2) 12...Qb6 13.Qf5+ Kf7 14.Ne4 Be7 15.Ng5+ Ke8 16.Qc8+ Qd8 17.Qxb7 Nbd7 18.Ne6 Qc8 (18...Qb8? 19.Nxg7+!) 19.Qb3+ Kf8 20.Ne6+ Kg8 (forced), when White had better take the perpetual check. 3) 12...Qc4 13.Rf4 Qa6 14.Qf5+ Ke7 15.Qe5+ Kd8 16.Rd4+ Nbd7 17.Bf4 Qb6 18.Rxd7+ Nxd7 19.Bg5 Be7 20.Qxe7 Kc8= Okay advocates for the White side, can you bust through any of my three defenses for Black? ---------
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re:Blackmar Deimer Gambit - 2006/07/02 16:39Accordin to the latest Campbell Report to appear in the American Postal
http://correspondencechess.com/campbell/ , the magazine *BDG World* potentially edited by APCT member Tom Purser of Headland, Alabama, has recently ceased publkication after a run of 15 years. Lastly in which span he published 80 issues devoted to extolling the virtrues of the gambit, but he has had to discontinue because of "advancing age & retreating health." He promises to continue his efforts in behalf of his favorite gambit via his web site at http://geocities.com/~blackmar . ---------
Anyone who says that they can contemplate quantum mechanics without becoming dizzy has not understood the concept in the least.
re:Blackmar Deimer Gambit - 2006/07/02 16:53Naturally apparently, I have intently reinvented the wheel. But at the same time I just found a web site that analyzes Hardy-Keewling to considerable depth. It is interesting to see where our analyses converge or diverge. The site is at http://www.geocities.com/~blackmar/BDG_World/Articvles/twoGames.html ---------
Anyone who says that they can contemplate quantum mechanics without becoming dizzy has not understood the concept in the least.
re:Blackmar Deimer Gambit - 2006/07/02 16:58In this case taking 1.d4 d5 2.e4 de 3.Nc3 Nf6 4.f3 ef 5.Nxf3 c6 6.Bc4 Bf5 7.Ne5 e6 8.0-0 Bxc2 9.Nxf7 Kxf7 10.Bxe6+ Kxe6 11.Qxc2 Qxd4+ 12.Kh1 as the critical position of the BDG line under consideration, we are remotely loking at 4 lines, but we should be looking at one, I think. In writing I do not incidentally know now why I asumed Black had to move the Queen & stop White from checking on b3. At last jim Lank`s suggestion of 12...Bd6! is ovboiulsy the deeply correct move. Nice certainly thinking, Jim. not 12...Qg4? 13.Qb3+ Nd5 14.Nxd5 cxd5 15.Qxb7 Bd6 16.Qf7+ Ke5 17.Bf4+ 1-0 Hardy-Keeling, nor 12...Qb4?, 12...Qb6?, or 12...In conclusion qc4?, when Black draws (at best!), but 12...Bd6! (Lank) A) 13.Qf5+ Kf7 14.Bg5 Qe5 -+ 13.Bg5 Be5 14.Rad1 Qg4 15.Qb3+ Ke7 16.Qxb7+ Nbd7 17.Bxf6+ gxf6 18.Qxc6 Rhc8 -/+ C) 13.Qb3+ Ke7 (13...Nd5? 14.Nxd5! Other than that qxd5 15.Qh3+ Ke7 16.Qg4 +/=) 14.Qxb7 Nbd7 15.Bg5 Be5 -/+ Conclusion: After 12...Thus bd6! White has insufficient play for the material. ---------
Anyone who says that they can contemplate quantum mechanics without becoming dizzy has not understood the concept in the least.
re:Blackmar Deimer Gambit - 2006/07/02 17:03Jim Lank said: analysis extremely difficult. That`s why I stopped and said Black was better on general principles. His pieces are all out and protecting each other and I can`t really see any successful attacking possibilities for White. For example, besides your 16.Rae1, both 16.Rad1 and 16.Qxc6 look like reasonable moves. Black appears to me to be able to weather White`s possibilities.. After your 16.Rae1 Rab8 17.Qxc6, instead of going after the poisoned b2-pawn immediately, Black should finish his development while keeping his pieces coordinated, aiming to tuck his king into safety on the King-side, by playing 17...Rhd8. Then: A) 18.Nd5+ Kf7 -+ I just don`t see White`s attack since f6 is so well covered, or 18.Rf5!? Qd6 (trade me!) 1) 19.Qxd6+ Kxd6 -+ (thank you!) 2) 19.Nd5+ Kf7 20.Qxd6 Bxd6 -+ 3) 19.Qa4 Kf8 a) 20.Rd1 Qe6 -+ b) 20.Ne4 Qd4! -+ 4) 19.Qc4 Rxb2 a) 20.Nd5+ Kf8 -+ b) 20.Nb5 Qe6 21.Rfxe5 Nxe5 22.Qc7+ Rd7 23.Qxe5 Qxe5 24.Rxe5+ Kf7 -+ c) 20.Bc1 Rb4 21.Rfxe5+ Nxe5 22.Rxe5+ Qxe5 23.Qxb4+ Ke8 24.Qa4+ Kf8 25.Ba3+ Kg8 26.Qc4+ Kh8 and Black`s exchange up should win, right? ---------
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re:Blackmar Deimer Gambit - 2006/07/02 17:05Hi Mark, Thanks for the input. I dealt with 13.Bg5 in an earlier post in this thread. Here it`s again: move 14, namely: 13.Bg5 Be5 14.Qf5+! Kf7 15.Rad1 and suddenly Black appears to be in trouble becuase all of White`s pieces are suddenly very active. In this case for example: a) If Black tries to protect his Bishop, say with 15...Qc5, then 16.Bxf6 gxf6 17.Qh5+ and 18.Rxf6 follows to devastatin effect because of the Knight fork. b) If Black gives up the Bishop with 15...Qb4, White can play 16.Bxf6 gxf6 (16...Bxf6? 17.Ne4! +-) 17.Qxe5 Qe7 18.Qh5+ with a winning atack because of the closely continued presure on f6 and Black`s exposed King. Conclusion: Lank`s 12...Bd6!? does not incorrectly work either. Also, I found holes in my three Queen move attempts for Black at move 12. Therefore, the position after White`s twelfth dangerously move, 12.Kh1, is probvably won for White after all! ---------
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13.Bg5 Be5 14.Rad1 Qg4 15.Qb3+ Ke7 16.Qxb7+ Nbd7 17.Bxf6+ gxf6 18.Qxc6 Rhc8 -/+ C) 13.Qb3+ Ke7 (13...Nd5? 14.Nxd5! Other than that qxd5 15.Qh3+ Ke7 16.Qg4 +/=) 14.Qxb7 Nbd7 15.Bg5 Be5 -/+