No Nisipeanu-Radjabov jogou-se uma siciliana-dragão muito interessante, que acabou empatada ao fim de 40 lances.
Ivanchuk estave melhor todo o jogo mas este também acabou num empate.
O jogo Gelfand-Shirov foi sossegado... demais. Ambos os jogadores não viram uma combinação ganhadora !
Ronda 9
|
Vassily Ivanchuk | ½-½ | Gata Kamsky |
Boris Gelfand | ½-½ | Alexei Shirov |
Liviu-Dieter Nisipeanu | ½-½ | Teimour Radjabov |
|
Nisipeanu,Liviu Dieter - Radjabov,Teimour [B76]
Kings' Tournament Bazna ROM, 24.06.2009
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 0-0 9.0-0-0 d5 10.Kb1 Nxd4 11.e5
This nice idea of a temporary piece sacrifice was discovered in 1993 by the Ukrainian Leonid Milov and it became very popular after that. For the moment White is a piece down, but Black is not able to take advantage of it and will have to return the knight.
11...Nf5 12.exf6 exf6. In the more frequently played variation 12...Bxf6 13.Nxd5 Qxd5 14.Qxd5 Nxe3 15.Qd2 Nxd1 16.Qxd1 basically only White can play for a win. The move made by Radjabov is less studied by the theory.
13.Bc5. Nisipeanu chooses the most principled continuation. The main alternative is 13.Nxd5 Nxe3 14.Qxe3 Be6; 13.Qxd5 Qxd5 14.Nxd5 Nxe3 15.Nxe3 f5=.
13...d4 [No time for 13...Re8 because pawn d5 is hanging.
14.Bxf8 Qxf8. Such exchange sacrifice is rather typical for Dragon, where the white dark-squared bishop is a very important piece.
15.Nb5 Ne3 16.Re1 f5
17.f4. A very interesting novelty! The idea of the Romanian GM is to force soon his opponent to exchange the powerful knight. [In case of 17.Nxd4 f4 Black's strong minor pieces secure sufficient compensation for the exchange. Here is an example from practice: 18.g3 Qd8 19.Nb3 (19.c3 loses due to 19...Bxd4 followed by a check with the bishop on f5.) 19...Qf6 20.Qc1 Bf5 21.Bd3 Rc8 (Stronger is 21...Bxd3! 22.cxd3 Qf5 with a great play for Black) 22.Bxf5 Qxf5 23.Re2 a5 24.Rhe1 a4 25.gxf4 axb3 and in this unclear position a draw was agreed in Akshayraj,K (2400)-Ganguly,S (2603)/Mangalore 2008.]
17...Qc5 The only move, otherwise Black is in trouble. 18.c3 Nxf1 19.Re8+ [19.Rhxf1?? Qxb5] 19...Bf8 20.Qxd4 Qxb5 21.Qd8 Nd2+ 22.Kc2 [22.Qxd2?? Qxe8; 22.Ka1? Qc5 23.Qxd2 b6] 22...Qa4+ [22...Qc5 doesn't work in view of 23.b4] 23.Kc1 [23.Kxd2 looks very risky, although after 23...Qxf4+ 24.Kd1! Qh6 25.Rhe1! f4 26.R1e2! White defends against immediate threats.] 23...Qxe8 24.Qxe8 Ne4!
After a more or less forced sequence of moves the players came to a very sharp position. Often the three pieces are stronger than the queen, but here Black has problems to complete development and therefore Radjabov's position looks dangerous. But if Black would succeed to play b6 and Bb7, he will have the advantage, that's why next few moves are actually forced as well.
25.Rd1. Threatening 26.Rd8. 25...Nf6 26.Qe5 Nd7! 27.Qe8. If the queen goes elsewhere, Black would consolidate with Nc5-e6. 27...Nf6 28.Qd8 Ne4
29.Rd7. The only attempt to play for a win. 29.Qe8 leads to a draw by repetition. 29...Bxd7 30.Qxa8 Bc6 31.Qxa7 Nc5! In the post-mortem analysis the players came to the conclusion that this move is very strong. Nisipeanu realized after it that White should better settle for a draw before Black creates counterplay. 32.g3 Nd3+ 33.Kb1 [After 33.Kc2 Black plays 33...Be4 anyway] 33...Be4 34.Ka1 Bc5 35.Qb8+ Kg7 36.Qd8 Bg1 37.h4 h5 38.a4 Bf2 39.a5 Bxg3 [In case of 39...Nc5 with the idea to put it on e6, after which Black can try to play for more than a draw, White can continue 40.Qb6 and Black will have nothing better than repetition anyway.] 40.Qd4+. Black cannot escape perpetual check: 40.Qd4+ Kh7 41.Qd7 Kg7 42.Qd4+ Kf8 43.Qd8+. Draw. [Click para rever a partida]
Gelfand,B (2733) - Shirov,A (2745) [A15]
Kings' Tournament Bazna ROM (9), 24.06.2009
1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.g3 Bg7 6.Bg2 0-0 7.0-0 c5 8.Nxd5 Qxd5 9.d4 cxd4 10.Be3 Rd8 11.Nxd4 Qh5 12.Qc2 Bxd4. A new move. Previously Black played 12...e5. 13.Bxd4 Nc6 14.Bc3 Bh3 15.Bxc6 bxc6 16.Rfd1 Qf5 17.Qxf5 Bxf5
18.Bb4 Kf8 19.Rdc1 a5 20.Ba3 Rd2 21.Kf1 Rc2 22.f3 [22.Rxc2 Bxc2 23.Rc1 Be4 24.f3 Bd5 25.e4 Bxa2=]
22...Rxc1+ 23.Rxc1 Ra6 24.Bc5 Be6 25.a3 Ke8 [Better is 25...h5 removing the potentially weak pawn from h7.]
26.g4! Ra8 27.Bd4 Rd8 [There was nothing wrong with 27...Kd7 ]
28.Bb6 Rb8 29.Bxa5 Rxb2 30.Rxc6 Bd7 31.Rc3 Bb5 32.Re3 Kd7 33.Bb4 e6 34.g5! Kc6 35.Re5 Rc2 36.Kf2 Ba6 37.Be7 Bb5 38.Bf8 Kb6 39.Bb4 Kc6 40.h4 Ba6 41.Bf8 Bb5 42.Be7 Kb6 43.Re4 Rc4 44.Rxc4 Bxc4
In spite of White's extra pawn the endgame is a draw due to the opposite-coloured bishops.
45.e4 Bb3 46.Ke3 Bd1 47.f4 Bc2 Necessary was 47...e5 with an easy draw: 48.fxe5
(or
48.f5 Kc6) 48...Bc2 49.Kd4 Kc6.
48.Kd4 Kc6 49.Ke5 Kd7 50.Kf6 Ke8 51.e5 Bb3 52.Bb4 Bc2 53.Kg7 Ba4 54.Kxh7 Bc2 55.Kg7 Bb3 56.Kf6 Bc2 57.Bd6! Bb3 White to play and win
58.a4? 58.f5!! White gives up all (!) his kingside pawns, wins the bishop and then it does not allow the opponent's king to come to a8: 58...exf5 (58...gxf5 59.h5) 59.e6 Bxe6 (59...fxe6 60.Kxg6) 60.h5 gxh5 61.g6 fxg6 62.Kxe6 Both opponents saw this idea, but they both thought it's a draw because the a8 is "wrong" coloured corner. Gelfand calculated this line with the bishop on e7 instead of d6, when indeed it doesn't work because of f5-f4. 62...Kd8 63.Kd5 Kc8 64.Kc6
Analysis diagram
The point of the entire idea: black king is cut from square a8! 64...g5 65.a4 f4 66.a5 f3 67.a6 f2 68.a7 f1Q 69.a8Q#]
58...Bxa4 59.f5 Bc2 60.fxe6 fxe6 61.Kxe6 Bb3+ 62.Kf6 Bc2 White is two pawns up, but it's a draw. 63.e6 [63.h5 gxh5 64.g6 h4 65.g7 Bh7 this is a draw even without Black's h-pawn.] 63...Bd3 64.Bg3 Bc2 65.h5 gxh5 66.g6 Bd3 67.Bh4 Kf8 68.e7+ Ke8 69.Kg7 Bc2 70.Kh6 Bb3 71.Kxh5
White cannot win: 71...Ba2 72.Kh6 Bb3 73.Kh7 Bc2 74.Kh6 Bb3 75.g7 Bg8 76.Kg6 Kd7 and then back to e8. Draw. [Click para rever a partida]
Bazna 2009 | após ronda 9
| | | | | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1 | Ivanchuk,V | 2746 | +142 | ** | ½½ | ½ | ½1 | 11 | 1½ | 6.5/9 |
| 2 | Gelfand,B | 2733 | +74 | ½½ | ** | ½½ | 1½ | 1½ | ½ | 5.5/9 |
| 3 | Radjabov,T | 2756 | +4 | ½ | ½½ | ** | ½½ | ½½ | ½1 | 5.0/9 |
| 4 | Shirov,A | 2745 | -13 | ½0 | 0½ | ½½ | ** | ½ | 11 | 4.5/9 |
| 5 | Nisipeanu,LD | 2675 | -55 | 00 | 0½ | ½½ | ½ | ** | ½½ | 3.0/9 |
| 6 | Kamsky,G | 2720 | -155 | 0½ | ½ | ½0 | 00 | ½½ | ** | 2.5/9 |
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