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Thursday, February 26, 2009

Topalov wins World Chess Challenge

GM Veselin Topalov of Bulgaria won the seventh game of his match today to clinch the match by a score of 4.5-2.5. Topalov now moves on to play World Chess Champion Vishy Anand later in the year for the World Chess Championship Crown. Here is some analysis of game 7:


Topalov,V - Kamsky,G [C07]
World Chess Challenge Sofia BUL (7), 26.02.2009
[Deep Rybka 3,Zappa Mexico II]

Opening:French Defense:Tarrasch variation 1.e4 e6 French Defense 2.d4 d5 3.Nd2 Tarrasch variation 3...c5 The most popular continuation for Black. 4.exd5 Qxd5 [Analysis:More popular is 4...exd5 ] 5.Ngf3 cxd4 Winning a pawn. 6.Bc4 Winning a tempo for his pawn. 6...Qd6 The lost tempo. 7.0-0 Nf6 The most often played move, beginning to develop his minor pieces. 8.Re1 Centralizing his rook. 8...Be7 Preparing to castle on the kingside. 9.Nb3 The most often played move, creating a double-attack against Kamsky's d-pawn. 9...Nc6 [Analysis:Rarely played in this position is 9...0-0 ] 10.Nbxd4 Regaining his pawn and offering to exchange knights on d4. 10...Nxd4 [Analysis:Rarely played in this position is 10...0-0 ] 11.Nxd4 Regaining his piece. 11...0-0 [Analysis:The main line is: 11...a6 12.c3 0-0 13.Qf3 Qc7 14.Bb3 Bd6] 12.c3 Anchoring his knight. 12...Bd7 Completing the development of his minor pieces. 13.Qf3 The most popular continuation, attacking Kamsky's unprotected b-pawn winning a tempo. 13...Qb6N The lost tempo, however now Topalov's b-pawn is attacked which ties down Topalov's dark-squared bishop to defend this pawn.This move is a theoretical novelty for the position. 14.Bb3 Allowing him to develop his dark-squared bishop. [Analysis:Deep Rybka 3:Another idea is to play 14.Bf4 with a possible continuation being: 14...Qxb2 15.Rab1 Qa3 16.Rxb7 Rac8 17.Bb3 h6 18.Qe2 Rfd8 =] 14...a5 Threatening ....a4. 15.Be3 Threatening a discovered attack against Kamsky's queen. 15...Bc5 Double attacking Topalov's bishop. 16.Rad1 Centralizing his rook, which results in the overprotection of his knight. [Analysis:Deep Rybka 3: 16.Rab1 e5 17.Nc2 Rac8 18.Bxc5 Qxc5 19.Ne3 a4 20.Bc2 a3 !? 21.bxa3 b5 22.a4 bxa4 23.c4 Bc6 24.Qg3 Nh5 25.Qh4 g6 =] 16...a4 Attacking Topalov's bishop, winning a tempo. 17.Bc2 [Analysis:Deep Rybka 3:The program preferred to play 17.Bc4 with a possible continuation being: 17...Qxb2 18.Bh6 Bc6 (18...gxh6? 19.Qxf6+-) 19.Qg3 Nh5 20.Qh4 Ra5 21.Re5 Qxc3 22.Qxh5 Bxd4 23.Rxa5 gxh6 24.Qg4+ Bg7 =] 17...Qxb2 18.Bg5 Threatening 19.Bxf6 18...Nd5 Double-attacking Topalov's c-pawn. 19.c4 Threatening 20.cxd5 19...Bxd4 20.Qd3 Threatening the game ending 21.Qxh7 checkmate. 20...f5 21.Qxd4 Regaining his piece. 21...Qxc2 Regaining material equality. 22.cxd5 Qxa2 Going up two pawns in material. Deep Rybka evaluates that Topalov has a great deal of compensation for the pawns. 23.Qb6 Creating the threat of 24.Qxb7. [Analysis:Deep Rybka 3: 23.Qb4 Rae8 24.Qxb7 Rf7 25.d6 Qb3 26.Qa7 Qb8 27.Qd4 Rc8] 23...a3 Advancing the passed pawn nearer to its queening square. [Analysis:Deep Rybka 3:Better is: 23...Rae8 24.Qxb7 Rf7 25.d6 Qb3 26.Qxb3 axb3 27.Be7 Rb8 28.f4 Bc6 29.Rd2 Bd5 30.Kf2 Rxe7 31.dxe7 Kf7 With sufficient compensation for the pawn.] 24.Be7?! Attacking Kamsky's rook. [Analysis:Deep Rybka 3:Better is 24.dxe6 Bc6 25.e7 Rfe8 26.Rd8 Qf7 27.Bc1 h6 28.f3 Kh7 =/+ (28...a2 29.Bb2 Kh7 30.Rxa8 Rxa8 31.Qd8 Ra4 -/+) ] 24...Rfe8-/+ Avoiding the loss of a tempo and instead winning one. Deep Rybka evaluates this position as -/+ 25.Qd6 Attacking Kamsky's bishop threatening to win a tempo. [Analysis:Deep Rybka 3:Better is 25.Qxb7 with a possible continuation being: 25...Ba4 26.Ra1 Qxd5 27.Qxd5 exd5 28.Rxa3 d4 29.Bb4 Rxe1+ 30.Bxe1 Re8 31.Bb4 Bc2 -/+] 25...Ba4 Attacking Topalov' s rook threatening to win it.By playing this move Kamsky gives back a pawn. [Analysis:Deep Rybka 3:Better is 25...Bc8 with a possible continuation being: 26.Qc7 Qb3 27.d6 a2 28.Bf6 Bd7 29.Bxg7 Kxg7 30.Qxd7+ Kg8 -/+] 26.Qxe6+ Winning a tempo.Deep Rybka 3 evaluates that Topalov has sufficient compensation for the pawn. 26...Kh8[] the only move 27.Ra1 Avoiding the loss of tempo and instead winning one by attacking Topalov's queen. 27...Qc4 The lost tempo, however now because the a2-square has been vacated, Kamsky can advance his a-pawn to this square. 28.Rec1 Attacking Kamsky's queen winning a tempo. [Analysis:Deep Rybka 3:Better is 28.Rxa3 Bb3 29.Rxa8 Rxa8 30.Qxf5 Qc3 31.Qe4 Ra1 32.Bb4 Rxe1+ 33.Qxe1 Qxe1+ 34.Bxe1 Bxd5 =] 28...Bc2 The lost tempo. 29.Qd7?! [Analysis:Deep Rybka 3:Better is 29.Qe3 with a possible continuation being: 29...f4 30.Qc5 Qxc5 31.Bxc5 a2 32.Rxc2 Re1+ 33.Rxe1 a1Q 34.Rcc1 Qa4 =/+] 29...a2-/+ -/+ 30.d6? Anchoring his bishop.Now Topalov threatens to win a pawn via 31.Qxb7.However, the move 30.d6? is a mistake. [Analysis:Deep Rybka 3:Better is 30.Qxb7 Qd4 31.Qb4 Qxb4 32.Bxb4 Re4 33.Bc3 Bb3 34.d6 Kg8 35.f3 Rc4 36.Bb2 Rd8 37.Rxc4 Bxc4 -/+] 30...b5?! [Analysis:Better is 30...Qb3 with a possible continuation being: 31.Re1 Be4 32.h3 Rec8 33.Bg5 Qb2 34.Qe6 Re8 35.Rxa2 Qxa2 36.Qxa2 Rxa2 37.d7 Rf8 38.f3 Bc6 39.d8Q Rxd8 40.Bxd8 Kg8 =/+] 31.Qb7? A mistake. [Analysis:Deep Rybka 3:Better is: 31.Qc7 Qxc7 32.dxc7 Bb3 33.Bb4 Bc4 34.Rd1 Rac8 35.Rdc1 Kg8 (35...Rxc7 36.Rxa2 Kg8 (36...Bxa2 37.Rxc7 Kg8 38.Bc3 Bf7 39.Rb7 Rc8 40.Bb2 Rd8 41.h3 h6 with sufficient compensation for the pawn.) ) ] 31...Reb8? A mistake. [Analysis:Better is 31...b4 32.d7 Reb8 33.d8Q+ Rxd8 34.Qxb4 Qxb4 35.Bxb4 Rdb8 36.Bd2 Rb1 37.f3 Kg8 -+] 32.Qc7 Offering to exchange queens. 32...Rc8? A mistake. [Analysis:Deep Rybka 3:Better is 32...Bd3 with a possible continuation being: 33.Rxc4 bxc4 =/+ 34.h3 Rb1+ 35.Kh2 Rxa1 36.d7 Rh1+ 37.Kg3 f4+ 38.Kxf4 Rg8 39.d8Q a1Q 40.Bc5 Re1 41.Qxg8+ Kxg8 42.Qd8+ Kf7 43.Qd5+ Kg6 with sufficient compensation for the rook.] 33.Qxc4 Rxc4 34.d7 Threatening 35.d8 (Q)+- 34...Bb1 Threatening 35...Rxc1 mate [Analysis:Better is 34...Bb3 35.d8Q+ Rxd8 36.Bxd8 Kg8 37.Re1 Rd4 38.Bb6 Re4 39.Rxe4 fxe4 +-] 35.Rd1 [Analysis:Zappa Mexico II: Better is 35.Rxc4 bxc4 36.Kf1 Kg8 37.d8Q+ Rxd8 38.Bxd8 c3 39.Ke1 Kf7 40.Kd1 Ke6 41.Kc1 c2 +-] 35...Kg8 36.d8Q+ Forcing Kamsky to give up his rook for Topalov's new queen. 36...Rxd8 37.Bxd8 Leaving Topalov up a minor piece in material. 37...Bc2 Attacking Topalov's rook threatening to win at least a tempo. 38.Rdc1 +/- The lost tempo,however now Kamsky's a-pawn is enprise. 38...b4?? Kamsky blunders a pawn. [Analysis:Zappa Mexico II:Better is 38...Bb3 39.Re1 Re4 40.Ba5 Rxe1+ 41.Rxe1 Kf7 42.Bc3 g6 43.f3 Bc2 44.Bb4 h6 +-] 39.Rxa2 +- The lost pawn. 39...b3 Threatening 40...b2 followed by 42...b1(Q). 40.Ra8 Threatening a discovered check against Kamsky's king. 40...Kf7 [Analysis: 40...b2?? 41.Bf6+ Kf7 42.Bxb2 Rc7 +-] 41.Rb8 Preventing Kamsky from advancing his b-pawn. 41...Ke6 42.Re1+ [Analysis:Zappa Mexico II:Better is 42.Ra1 h6 43.f3 Rc6 44.Ra7 g6 45.Be7 Kd5 46.Bf8 h5 47.Rd8+ Ke6 48.Ba3 f4 49.Re8+ Kd5 50.Ra5+ Kc4 51.Ra4+ Kc3 52.Rxf4 b2 53.Bxb2+ Kxb2 +-] 42...Kd5 [42...Kd6 43.Bb6 b2 44.Be3 b1Q 45.Rbxb1 Bxb1 46.Rxb1 f4 47.Bd2 g5 +-] 43.Be7 [Analysis:Rybka 3: Better is: 43.Rb6 Rc6 44.Rb7 Ra6 45.Bg5 Kc6 46.Rb4 Kd5 47.Bd2 g6 48.Bc3 Ra7 49.Re5+ Kc6 50.f3 Rf7 +-] 43...Ra4 Threatening 44...Ra2 45....b2 46...b1(Q). 44.Bf8 Ra7 [44...Ra2 45.Bxg7 +-] 45.h4 Kamsky resigned. With this victory Topalov wins the match by a score of 4.5-2.5 and he will now face World Chess Champion Viswanathan Anand later in the year for the World Chess Championship. Congratulations to GM Topalov. 1-0

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