Shankland, Dreev pace Capablanca
The all-Chinese women’s world championship match between defending champion Tan Zhongyi and challenger Ju Wenjun is underway in the citrial ies of Shanghai and Chongqing.
After five games, Ju had a comfortable 3.5-1.5 lead, and threatens to pull away from Tan, halfway through the 10-game world chess series organized under the auspices of the FIDE.
The remaining games will run up to May 18 in China’s major city of Chongqing.
* * * Meanwhile, Samuel Shankland (USA) and Alexey Dreev (Russia), made charges to share the lead after three rounds of the 53rd Capablanca Memowere at the Habana Libre Hotel in Cuba’s capital city of Havana.
Shankland, the current US champion and the veteran Dreev, had 2.0 points in the six-player, double round robin event. America’s longest-running yearly international, the chessfest is being held in honor of the Cuban world champion, Jose Raul Capablanca.
Other players in the table Aleksander Rakhmanov (Russia) and Yusnel Bacallao (Cuba), 1.5, Anton Guijarro David and Lazaro Bruzon (Cuba), 1.0.
* * * Below is an exciting rollercoaster game taken from the recently concluded Russian team championship. Russian Team Ch. 2018
W) V. Artemiev (Russia) B) D. Dubov (Russia) Sicilian Defense 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 ...
The Closed System against the Sicilian, adopted and strongly recommended by the late world champion Vassily Smyslov in the 50s and 60s, but only former world champion Boris Spassky succeeded in making it popular. 5 .... d6 6. Be3 ...
An alternative is 6. f4, and after 6...e6 7. Nf3 Nge7 8. 0-0 0-0 9. Be3 Nd4 10. Rb1 Nec6 11. Ne2 Nxf3ch 12. Bxf3 b6, the game is about even. 6 .... e5!?
A move essayed by Botvinnik against Smyslov, during their Moscow 1954 world championship match. The idea is to block the scope of White’s g2 Bishop and to render difficult the thematic advance d3-d4. 6...e6 is a fair alternative wherein Black will obtain equality with 7. Qd2 Nge7 8. Nge2 Nd4 9. 0-0 0-0.
7. Nh3 Nge7 8. O-O O-O 9. f4 exf4 9...b5!? as the engine suggests, is better than the text. 10. Nxf4 b5 11. a3 b4 12. axb4 cxb4 13. Ncd5 Bxb2 14. d4!? ... Sharp, risky and therefore interesting. 14 .... Bxa1 15. Nf6ch Kh8 16. Qxa1 Qa5 17. Qd1 Ng8?!
The source of all Black’s problems. The engine recommends 17...Ba6 with chances for equality after 18. Re1 Qd8 19. N4d5 Nxd5 20. Nxd5 f6. 18. N4d5 Be6 19. Nxg8 Rxg8
19...Kxg8? is met by 20. Nf6ch Kh8 21. d5. 20. Bg5 Rg7?
This passive move proves to be the decisive error. No matter how risky it looked, 20...h5 had to be tried. 21. Bf6 Rg8 22. Ne3 Qb6 23. Qd2 Na5 24. h4 b3 24...Nc4 may put up a longer resistance.
25. Rb1 b2 26. c4 Rb8 27. Kh2 Qb4 28. Qf2 Nxc4 29. Nxc4 Bxc4 30. d5 Qb6
30...Qc5 31. Rxb2 Rf8 32. Qxc5 dxc5 33. d6 is also hopeless for Black. 31. Rxb2! Bb3
Or 31...Qc7 (31...Qxf2 is punished by instant mate) 32. Qd4 Rg8 33. Rc2 and White wins. 32. Qe1 Qb4
If 32...Rc8 33. Qb1 Rb8 34. Qa1 and wins. 33. Qa1 Rg8 34. Qxa7 Qc4
34...Rf8 35. Qe3 Rb8 36. Qh6 Rg8 37. Bxg7ch Rxg7 38. Qe3 and wins. 35. Qxf7 1-0
Black cannot avoid losing material. For instance 35...Qb4 36. Bxg7ch Rxg7 37. Qf8ch Rg8 38. Qf6ch Rg7 39. Qf3 and wins. Or 35...Qb5 36. Bxg7ch Rxg7 37. Qf8ch Rg8 38. Qf3 Rb8 39. Qf6ch Kg8 40. Bh3 followed by 41. Be6ch. Solution to last week’s puzzle: Black to move and win. white=Kd6, Pe3, Pf2, Pg2, Pg3 black=Kf6, Pe4, Pf5, Pg4, Ph5
1... f4! 2. Kd5 ...
If 2. gxf4 h4, followed by 3...h3 and wins. Or 2. exf4 h4 3. gxh4 g3 4. fxg3 e3 and the pawn promotes. 2... f3! 3. gxf3 h4! 4. gxh4 g3 5. fxg3 exf3 and Black wins. * * * White to move and win.