Carlson took a two-game lead in the chess championship after a mistake in Russia

Russian challenger Ian Nepomniachtchi made an astonishing mistake that allowed world champion Magnus Carlson to win the second of three matches in the scheduled 14 World Chess Championship in Dubai on Sunday.

The result gave the Norwegian champion a 5-3 lead and seemed to stifle the crown he has worn since 2013. The first player to score 7 1/2 points wins the game, and the one-day fast and lightning playoffs will be December 15th if the game is tied.

Nepomniachtchi performed strongly in the first few games of the game, starting with five consecutive draws. But in the 6th game on Friday, he lost to the champion with a record 136 steps, and after a tie with White in the 7th game, it seemed that he collapsed in Sunday’s conflict.

Faced with Petrov’s defense for the second time in the game, Carlsen used the relatively rare maneuver of 7.Nd2 and subtle 10.Qe1+ to force Black to exert creativity in order to maintain equality. Nepomniachtchi missed several opportunities to suppress White’s game, and then made the worst mistake in the game so far, losing a piece without compensation.

The key action appears in 20. c4 dxc4 21. Bxc4 b5??, which is a bad oversight for the top masters, because it loses a piece under the simple strategy of 22. Qa3+ Kg8 23. Qxa7, if 23.. .bxc4, White will return the bishop with 24. Qxd7. The discouraged challenger failed to make a strong resistance in the next game, because White was simplified to a post-final, and he had two extra pieces.

When Black’s hope of checking the White King after 44. d5 g4 45. hxg4 h3 46. Qf3 was dashed, the Russian gave up the game.

After a day off on Monday, Nepomniachtchi will have the advantage of White in the 9th game on Tuesday, but faces the arduous task of ending the two-point gap with only 6 games left. The challenger has not yet won a game in the game.

Carlsen-Nepomniachtchi, World Championship, Game 8, Dubai, December 2021

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. Nd2 Nxd2 8. Bxd2 Bd6 9. OO h5 10. Qe1 + Kf8.42d 16 Qe1. Bxd7 116. Qd2 Re8 14. Rae1 Rh6 15. Qg5 c6 16. Rxe8 + Bxe8 17​​. Re1 Qf6 18. Qe3 Bd7 19. h3 h4 20. c4 dxc4 21. Bxc4 b5 22. Qa3. Bx7d 22. Qa3 + Bxe8 R 18. Qe3 + Kg8. Re4 Be6 26. Bxe6 Rxe6 27. Rxe6 fxe6 28. Qc5 Qa5 29. Qxc6 Qe1 + 30. Kh2 Qxf2 31. Qxe6 + Kh7 32. Qe4 + Kg8 33. b3 K.x6e. 3 Qxa2 3 Qx 30e5 Qe1 + 30. Qb2 37. Qe4 +. Qd3 Qf2 39. Qc3 Qf4 + 40. Kg1 Kh7 41. Qd3 + g6 42. Qd1 Qe3 + 43. Kh1 g5 44. d5 g4 45. hxg4 h3 46. Qf3 Black resign

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