Bu Xiangzhi - Sergei Movsesian LIVE!

Nanjing Pearl Spring chess tournament live commentary

The round 6 game between Bu Xiangzhi and Movsesian Sergei begins at 8:00 am CET. The commentary will appear below the board.

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12:00 CET
62. h4! - "The pin wins!", as a delighted amateur exclaimed on the online playing site. There is no way to stop 63. h5 and Movsesian threw the towel after some stiff resistance. He lost both Pearl Spring games to Bu Xiangzhi.
Thank you everyone for following Chessdom live coverage, see you again tomorrow at 8:00 CET. Have a nice day!

11:45 CET
53. Qf4 - The simplest solution to get rid of the pin. In case of 53...Bxb2, White still keeps four passed pawns for the exchange.

11:35 CET
48. Qxh4+ - Bu finally collects the h-pawn. There is no time addition after 40 moves, only 30-sec increment. Both players are in small time trouble, with 7-8 minutes on the clock.

11:35 CET
44...Qb8!? - With idea to pin the Knight, but simple 45. Qxa4 prevents both Rd7 and Rc6 and buys a tempo for Bu.

11:30 CET
43. Nd6 - Good idea to harass Black's Rook and Bishop, but White will still have to work hard to convert the advantage.
44. Qe4 - Going after the unfinished business - Black h-pawn.

11:20 CET
35...Rf8 - Perhaps the only move as 35...Qd7 36. Nxf6+ involves the deadly Be5.
37. Qf5! - Preparing to grab h5-pawn.
39. Qe6 - Maybe simple 39. Qxh5+ was the best.

11:05 CET
33. Rxf6! - Beautiful exchange sacrifice that opens the gates for White Knight to join the attack. The annoying threat of Black's Nf6-e4 is also eliminated. 33...gxf6 34. Ne4! and now 34...Bg7 is met with 35. Qe7.

10:55 CET
31...h5 - A very difficult position for Black after 31. Rc7. It is hard to give a good advice, other than sit and wait to see what happens.

10:30 CET
29. Qb7! - This ensures advantage to White but he still has to be careful not to allow a sudden burst of Black's energy against Kh2.
29...Bf8 - Now 30. Rc7? is premature and break against 30...Qxf2! and 31...Rd2. Best is to cover f2 first with 30. Bg3.

10:25 CET
28...Qf1 - Looking aggressive but perhaps it was better to take precaution against White's intrusion to the 7th and 8th rank.

10:20 CET
26...Ba8 - The only move, 26... Bd5 27. Nxd5 Nxd5 28. Nc6 Re8 29. Nxe7+ Nxe7 30. Qb7! is much weaker.

10:15 CET
25. h3! - Bu declines moves repetition and continues to fight for the victory! h2-h3 with idea Nc6 is the best practical chance as Black Queen still remains sidelined.

10:05 CET
22. Rxd8 - 22. Rc1! might have been harder to meet, 22...Ba8 23. Ra4, only now, 23...Qc5 24. Rxc5 and Black will have to seek compensation on the kingside. 22. Rc1 Bd5!? 23. Nxd5 Nxd5 24. Nc6 Qb5 saves material, but White has better ending after 25. Qxb5 axb5 26. Nxe7+ and 27. Rc5.

9:50 CET
20...Qa5 - 20...Qb6 would be strongly met with 21. Nd7!, but in this position Nd7 does not work since Black can play the cool Rfc8.
21. Qb3 - A rather annoying assault on Bb7, since Rook cannot come to b8 (Bf4). Black has the neat 21...Rfd8 though, then 22. Qxb7 Rxd1+ 23. Nxd1 Qe1 is checkmate. 22. Rc1 renews the threat to Bb7.

9:40 CET
18. Bf4 - Gaining tempo for Ne5 next. Black Queen might appear clumsy over the next few moves as White pieces keep attacking her.
20. Rxc4 - 21. Nd7 could be interesting, depending on the Queen's retreat. This wins some entry points to the 7th rank.

9:25 CET
17. Ra4! - This is the point! Bu collects c4 pawn with his Rook and immediately shifts to attack Black King. Also possible was 17. Bxf6 and then Ra4.

9:10 CET
15...Bxc5!? - Now 16. Rfd1 Qe7 (16...Qc7 17. Bxf6 gxf6 and White has various possibilities for a Rook lift to 4th rank and transfer to the kingside) 17. Ne4!? might cause a slight structural damage on Black's side. Perhaps 15...Bb7 first, to prevent Ne4, was safer.

8:55 CET
13. Bxc4 - White will regain this pawn, but in the meantime Black will complete the development. 14...c5! - Timely liberating move, a common motif in many Chebanenko lines.
15. dxc5 - The best practical chance is to open d-file and disturb Black pieces' harmony.

8:45 CET
11. axb6 - necessary as 11. cxb5 axb5! is really awkward for White.

8:45 CET
10...b5 - Comes as a novelty, only 10...c5 has been tried earlier.

8:40 CET
7...Bb4 - A rare move, played with intention to entice White Queen to a4 and then b7-b5 comes with a greater effect. Garry Kasparov played 7...h6!? against Vladimir Kramnik in a 2001 rapid game, but next year he switched to 7...dxc4 in another rapid event.

8:35 CET
7. a5 - This expansion might have been prevented with 6...a5, which is Etienne Bacrot's regular choice. However, it is not overly dangerous for Black who will push b6 anyway.

8:30 CET
6. Bg5 - Catalan style 6. g3 dxc4 deserves attention. Black usually free themselves with timely c6-c5.

8:25 CET
5. a4 - White have tried many different setups against Chebanenko, but Black position is very resisting. 5. c5 and 5.e3 are the most popular, but 5. g3 and 5. Bg5 are also playable.

8:20 CET
4...a6!? - The ultra-popular Chebanenko Slav is the main defence of many top players, Movsesian included. Only sometimes he switches to King's Indian defence.

7:55 CET
Good morning everyone, welcome to the Chessdom LIVE coverage of the Pearl Spring tournament.