tag:blogger.com,1999:blog-13118012.post7509539437840771334..comments2023-11-03T04:57:40.606-05:00Comments on Susan Polgar Global Chess Daily News and Information: Brilliant tacticChess Daily Newshttp://www.blogger.com/profile/08623733406361333715noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-13118012.post-85646543799158990822013-07-07T09:57:35.604-05:002013-07-07T09:57:35.604-05:00I wonder if 1.Na4 is enough to try to deflect the ...I wonder if 1.Na4 is enough to try to deflect the Queen from the long diagonal? If 1...Qxa4 when 2.Qf6 (or maybe 2.hxg6 first) looks very strong. Does it win? <br />Instead, maybe Black can play 1...Qe7 and I'm not sure who's really better. White's attack seems just a touch slow.<br />Rd4 is the only other option I can see, but it looks very scary. b3 just looks to be losing. Qf6 is a worse version of Na4. What else is there?rocketboy oniccnoreply@blogger.comtag:blogger.com,1999:blog-13118012.post-69551314778408094972013-07-07T06:04:56.699-05:002013-07-07T06:04:56.699-05:00I like 1. Na4. This guards b2, and Black is ill-a...I like 1. Na4. This guards b2, and Black is ill-advised to capture the N because that would allow 2. Qf6 (also guarding b2 and, more importantly, threatening 3. hg and 4. Rh8#).<br /><br />Black has numerous ways to defend against Qf6, but they all require him to abandon his attack on b2 and white's attack on g7/h7/h8 can continue in various ways. CraigBhttps://www.blogger.com/profile/04020709678426937691noreply@blogger.comtag:blogger.com,1999:blog-13118012.post-26202061791165331962013-07-07T02:53:58.883-05:002013-07-07T02:53:58.883-05:00[FEN "1r3rk1/p1p2p2/2p3p1/6PP/1qb1PQ2/2N5/PPP...[FEN "1r3rk1/p1p2p2/2p3p1/6PP/1qb1PQ2/2N5/PPP5/2KR3R w - - 0 0"]<br /><br />My initial move was Na4 to prevent Qxb2. The following analysis was developed using Fritz 13 in infinite analysis mode. Actual gameplay by Karjakin and Wang Hao is presented after that. It seems to me that Na4 is better than Karjakin's Rd4, based on the following lines.<br />1. Na4 Qe7<br />2. Qh4 Kg7<br />3. hxg6<br /><br />(3. Qg3 Rbd8<br /> 4. Rxd8 Rxd8<br /> 5. h6+ Kh7<br /> 6. Qc3 Qxg5+<br /> 7. Kb1 Bxa2+<br /> 8. Kxa2 Rg8<br /> 9. Nc5 Qd8<br /> 10. Kb1 Qe7<br /> 11. e5 g5<br /> 12. Ne4 Rg6<br /> 13. Rf1 Rxh6<br /> 14. Rxf7+ Qxf7<br /> 15. Nxg5+ Kg6<br /> 16. Nxf7 {White has a decisive advantage.}<br /> 16... Kxf7<br /> 17. Qd4 Re6<br /> 18. Qxa7 Re7<br /> 19. Qf2+ Ke6<br /> 20. Qf6+ Kd7<br /> 21. Qf5+ Re6<br /> 22. b4 Ke7<br /> 23. Kb2 c5<br /> 24. b5 Rb6<br /> 25. Kc3 Re6<br /> 26. Kc4 Rb6<br /> 27. Qc8 Rh6<br /> 28. Qxc7+ Ke8<br /> 29. Kxc5 Rh2<br /> 30. c4 Rd2<br /> 31. b6 Rd7<br /> 32. e6 Rxc7+<br /> 33. bxc7 Ke7<br /> 34. c8=Q Kf6<br /> 35. Qd7 Kf5<br /> 36. e7+ Kg6<br /> 37. e8=Q+ Kf6<br /> 38. Qee7+ Kg6<br /> 39. Qg4+ Kh6<br /> 40. Qgg5#)<br /><br />3... Rh8<br />4. Qf4 Kxg6<br />5. Rh6+ Rxh6<br />6. Qf5+ Kg7<br />7. gxh6+ Kh8<br />8. Rg1 Qh4<br />9. Qe5+ f6<br />10. Qxc7 Qxh6+<br />11. Kb1 Rg8<br />12. Qxa7 Bb5<br />13. Nc3 Rxg1+<br />14. Qxg1 Qh3<br />15. a4 Bc4<br />16. a5 Qh5<br />17. b3 Qxa5<br />18. Qh2+ Kg7<br />19. Qg3+ Kf7<br />20. bxc4 Qb4+<br />21. Kc1 Qxc4<br />22. Qd3 Qxd3<br />23. cxd3 Ke6<br />24. Kd2 {Black should resign.}<br />24... Ke5<br />25. Ke3 Kd6<br /><br /> (25... c5<br /> 26. Na4 Kd6<br /> 27. Kf4 Ke7<br /> 28. Nxc5 Kf7<br /> 29. d4 Kf8<br /> 30. e5 Kf7<br /> 31. exf6 Kxf6<br /> 32. Ke4 Kg5<br /> 33. Ke5 Kg6<br /> 34. Ne6 Kh6<br /> 35. d5 Kg6<br /> 36. d6 Kh5<br /> 37. d7 Kg4<br /> 38. d8=Q)<br /><br /> (25... f5<br /> 26. Na4 Kd6<br /> 27. Kf4 fxe4<br /> 28. dxe4 Kd7<br /> 29. e5 Ke6<br /> 30. Nc5+ Kd5<br /> 31. e6 Kxc5<br /> 32. e7 Kb4<br /> 33. e8=Q)<br /><br />26. Kf4<br /><br /> (26. Kd4 Kd7<br /> 27. Kc5 Ke6<br /> 28. Kxc6 Ke5<br /> 29. Ne2 f5<br /> 30. exf5 Kxf5<br /> 31. d4 Ke6<br /> 32. d5+ Ke7<br /> 33. d6+ Kd8<br /> 34. d7 Ke7<br /> 35. Kc7 Ke6<br /> 36. d8=Q)<br /><br />26... Kc5<br />27. Na4+ Kb4<br />28. Kf5 Kxa4<br />29. Kxf6 Kb4<br />30. e5 Kb5<br />31. e6 c5<br />32. e7 Kb4<br />33. e8=Q Kc3 {Black truly doomed.}<br /><br />Actual gameplay:<br />1. Rd4 Qxb2+<br />2. Kd2 Rfd8<br />3. Qf6 Rxd4+<br />4. Qxd4 Qb6<br />5. Qxc4 Rd8+<br />6. Kc1 Rd4<br />7. Qe2 Qc5<br />8. Nb1 Qxg5+<br />9. Nd2 {Black resigned. Not sure why. White's advantage not that overwhelming as far as I can determine.}<br /><br />Playing out remainder of game using Fritz 13 in infinite analysis mode:<br />9... gxh5<br />10. Rxh5 Qg3<br />11. Rf5 Qa3+<br />12. Kb1 Qb4+<br />13. Nb3 Rd6<br />14. Qf3 Qc4<br />15. Rh5 Kf8<br />16. Qg4 Qe6<br />17. Rh8+ Ke7<br />18. Qg8 Rd1+<br />19. Nc1 c5<br />20. Qe8+ Kd6<br />21. Qd8+ Kc6<br />22. Qxd1 {White has a decisive advantage.}Craig Johannsennoreply@blogger.comtag:blogger.com,1999:blog-13118012.post-90414056394794764392013-07-07T00:04:30.584-05:002013-07-07T00:04:30.584-05:00What a nightmare.
I considered Na4, with the pur...What a nightmare. <br /><br />I considered Na4, with the purpose of getting my queen to f6, then I rejected that because I could play Qf6 immediately.<br /><br />My line went 1. Qf6 Qxb2+ 2. Kd2 Rbd8+ 3. Ke1 Rxd1+ 4. Kxd1 Qa1+ 5. Kd2 Qxh1 6. h6 Qg2+ 7. Kc1<br /><br />Here I thought I've got him, after 7..Qg1+ 8. Nd1 he's toast.<br /><br />I missed the simple 7..Qf1+ ruining everything and winning for black.<br /><br />There are other similar variations, but 3. Ke1 seems to be losing and 3. Ke3 seems to be drawing.<br /><br />I don't know how to reject a seductive move like Qf6 over the board. Maybe I'm holding on too tight to the idea of the mate.Lorfahttps://www.blogger.com/profile/11983110805677255777noreply@blogger.comtag:blogger.com,1999:blog-13118012.post-89074675592463007322013-07-06T21:19:03.353-05:002013-07-06T21:19:03.353-05:001. Na4 Qxa4
2. Qf6 (and Black is defenseless a...1. Na4 Qxa4<br />2. Qf6 (and Black is defenseless against the imminent mate on g7 or h8.<br />Knyt4knoreply@blogger.comtag:blogger.com,1999:blog-13118012.post-71671252880343479922013-07-06T18:25:40.199-05:002013-07-06T18:25:40.199-05:00Well, that was interesting. Karjakin played 1.Rd4...Well, that was interesting. Karjakin played 1.Rd4, but Hao put the rook I thought was good on d8 after taking at b2.<br /><br />In any case, the chessbomb engine suggests that 1.Na4 was the best move. It protects b2 and if the queen takes at a4, she is out of position for a move.Yancey Wardhttps://www.blogger.com/profile/16427042729449397357noreply@blogger.comtag:blogger.com,1999:blog-13118012.post-39930305451562560002013-07-06T18:21:02.316-05:002013-07-06T18:21:02.316-05:00This is a tough one. Obviously, white would like ...This is a tough one. Obviously, white would like to put the queen on f6 and go for the mate, but black's threat on b2 stalls this idea:<br /><br />1. Qf6? Qb2 (the only save??)<br />2. Kd2 Rbd8<br /><br />It matters which rook black checks with since there is a potential skewer: [2. ...Rfd8? 3.Ke3 Rd1 4.Rd1 gh5 5.Rb1! should be decisive]. Continuing:<br /><br />3. Ke3 Rd1 (what better?)<br />4. Rd1<br /><br />White doesn't have time for 4.h6 since black will check from c1 followed eventually by a check from f1/f3 to liquidate the queen at f6. Continuing:<br /><br />4. .....gh5 (Qb6 any better?)<br />5. Rh1<br /><br />Maybe 5.g6 is beter, but I am not quite seeing it. Continuing:<br /><br />5. .....Qc2 (any better move?)<br />6. Rh5 Qd3<br />7. Kf4 Qf1<br />8. Ke5 Qf6 (any better move?)<br />9. gf6 and I don't really know who is better here, but it looks close to even to me since black will have a hard time dealing with the threat of draw by repetition should white go for it.<br /><br />So, can white preemptively block the rook check from d8 above by playing 1.Rd4? Let's see where this leads:<br /><br />1. Rd4 Qb2 (any better move?)<br />2. Kd2 Rfd8 (better R this time)<br />3. Qf6<br /><br />So, white finds the time for Qf6. Continuing:<br /><br />3. .....Rd4<br />4. Qe3<br /><br />Forced by the threat on the c3 knight. Continuing:<br /><br />4. .....Qb6<br /><br />I looked a long time. I can't find better move. Black needs to get at the white king ASAP, and the black queen can do this from b6-f2. Continuing:<br /><br />5. Qf6<br /><br />I think white retains a good edge with 5.Qxc4, but this looks just slightly better. Continuing:<br /><br />5. .....Qc5 (threatening Qd6+)<br />6. hg6 Qd6 (forced)<br />7. Nd5! Qf6 (forced)<br />8. Nf6 and white clearly stands better, but is it decisive?<br /><br />So, let's back up the move 5 for white- should he take the bishop?<br /><br />5. Qc4 Qf2 (better move?)<br />6. Qe2! Qg3 (again, better?)<br /><br />And, sure, white stands better materially, but his king is a problem. I am not even sure that he can avoid a draw by repetition here.<br /><br />Basically, I give up. Will just look the game up and see what Karjakin actually played.Yancey Wardhttps://www.blogger.com/profile/16427042729449397357noreply@blogger.com