Zubov - Khalifman | World Champion fights till the end | Colle-Zukertort formation

Zubov sets a Zukertort system of Queens pawn opening developing bishop to b2. It is solid opening not promising too much but shifting game to middledame. Besides Khalifman is an opening specialist which knows lots of forced lines but in recent years not willing to fight a long game. White slowly manuvering to the kingside and even though the attack doesn't seem to be dangerous, engine shows big advantage for white at critical moment.

The Colle System, also known as the Colle–Koltanowski system, is a chess opening strategy for White introduced by Belgian Edgard Colle in the 1920s, and further developed by George Koltanowski. This variation of the Queen's Pawn Game is characterised by a systematic if modest development of White's minor pieces to support a quick pawn move to the e4 square. It is solid, but inflexible.

Colle and Koltanowski each won many tournaments in the 1920s and 1930s. Colle finished ahead of Tartakower, Euwe and Rubinstein at various times. The opening had even been referred to as the “dreaded” Colle System. George Koltanowski, in his book, “The Colle System” said it offered “solid development”, combinations, a decent endgame, and it gives White “good chances of not losing against a stronger player”. However, players like Capablanca and Tal found ways to take the sting out of some of its various lines. One such line that has been tested is 3...Bf5, sometimes called the “Anti-Colle.”

Ignoring Black's responses in order to consider White's moves only, the typical plan is as follows: 1.d4 2.Nf3 3.e3 4.Bd3 5.0-0 6.Re1 7.c3 8.Nbd2 9.e4, with White rearranging their move order appropriately. It is a perfectly solid scheme of development, but, inflexibly applied, it cannot offer more than equality against a vigorous Black response. It may be a good tool for avoiding book variations, for Blitz play, or for forcing opponents to think for themselves early on. These days it is considered totally innocuous, and is rarely seen at Master level or above
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Tal Memorial Rapid
Zubov, Alexander - Khalifman, Alexander
½-½
Tal Memorial Rapid 2019 round 05

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. e3 Be7 5. b3 O-O 6. Bb2 c5 7. Bd3 cxd4 8. exd4 b6 9. O-O Bb7 10. Qe2 Nbd7 11. Nc3 Re8 12. Rad1 Qc7 13. Ne5 dxc4 14. Bxc4 Nf8 15. f4 Nd5 16. Rc1 Nxc3 17. Rxc3 Qd6 18. Rg3 Bd5 19. Qh5 g6 20. Bd3 f5 21. Qe2 Bf6 22. Ba6 Kg7 23. Rc3 Re7 24. Rfc1 Rd8 25. Qe3 Be4 26. Rc4 Bd5 27. Rc8 Rxc8 28. Rxc8 Qb4 29. Qc3 Qxc3 30. Bxc3 Bb7 31. Bxb7 Rxb7 32. Bb4 Nd7 33. Nc6 a5 34. Bd6 b5 35. Be5 Nb6 36. Rd8 Bxe5 37. fxe5 Nd5 38. Rd6 Nb4 39. Nd8 Rb8 40. Nxe6+ Kh6 41. a3 Nc2 42. Ra6 Nxa3 43. Rxa5 Nc2 44. d5 Nb4 45. Nc7 Rb7 46. d6 Nc6 47. Rxb5 Rxb5 48. Nxb5 Nxe5 49. Nc7 Kg7 50. b4 Kf6 51. b5 Nd7 52. Kf2 Ke5 53. Ne8 g5 54. Ke3 f4+ 55. Kf3 h5 56. h3 Kd5 57. Kf2 g4 58. h4 Kc5 59. Ng7 Kxb5 60. Nxh5 f3 61. gxf3 gxf3 62. Ng3 Kc6 63. Nf5 Ne5 64. h5 Kd7 65. Kg3 Ke6 66. h6 f2 67. Kxf2 Ng4+ 68. Kf3 Nxh6 69. Nxh6 Kxd6 70. Ke4 ½-½
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Blitz chess (also known as speed or fast chess) is a type of chess in which each player is given less time to consider their moves than normal tournament time controls allow. Openings, tactics and strategy are same.

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