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#47 (permalink) | |
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#48 (permalink) |
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Chess: Understanding the Sicilian Scheveningen
(Keres Attack) 1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 g4 Line What's the game plan for White? White intends to gain space on the kingside ( 6 g4, 7 h4, h5) and pressurize Black's game in that sector (8 Rh1-g1, 9 gxh5 10 Bg5). In the center, he aims to take advantage of the half open d-file ( 11 Qd1-d2, 13 0-0-0) and execute an appropriate f2-f4 advance. However, the isolated h-pawn could be a potential weakness in his set-up. What's the game plan for Black? Black wants to contain White on the kingside ( 6 ... h6, 8 ... h5) and retaliate on the opposite wing, beginning with 12 ... a6, followed by 13 ... Bd7 and 15 ... b5. To give the attack more punch, he intends to play ... Nc6-e5-c4. As always, a timely ... e5 or ... d5 is crucial to his survival in the center. With regards to king safety, ... 0-0-0 is an option, although it's not uncommon for the monarch to remain seated on e8. Chess: Understanding the Sicilian Dragon 1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 f3 O-O 8 Qd2 Nc6 9 Bc4 Bd7 10 O-O-O Line What's the game plan for White? White's focus is a kingside attack formulated around the following ideas: * Moving the bishop on e3 to h6, where it can capture the bishop on g7. If Black's bishop takes on h6, White's Queen can recapture, and, subsequently work with the h1 rook to attack the h-file, once that file is opened up. * Playing h2-h4-h5 so as to tempt ... Nf6xh5. Thus, White opens up the h-file and enables g2-g4 with gain of time. If Black doesn't play ... Nf6xh5, White can always play a timely h5xg6, and still get the use of an open h-file. Additionally, if White's bishop is still on the a2-g8 diagonal, where it pins the f7 pawn to the King, Black is forced to respond to h5xg6 with ... h7xg6. Thereafter, g6 is open to attack. * Moving the c3 knight to d5, where it will take the knight on f6, thus eliminating a key defender of h7. Once the h-file is opened up by the h2-h4-h5 maneuver, and the g7 bishop and f6 knight are eliminated by Be3-h6-Bxg7 and Nc3-d5-Nxf6, White threatens to bring his Queen to h6 and mate Black on the h7 or h8 square. If Black impedes the above strategy by ... h5, White can always try to play for a timely e4-e5 central break. What's the game plan for Black? Black needs to mount a queenside attack by: * Playing ... Nc6 and ... Bd7, as per move 8 and 9. * Posting the c6 knight on c4 via ... Nc6-e5-c4. * Taking control of the half open c-file by playing ... Rac8 or ... Rfc8. Rfc8 is usually preferable because it allows the g7 bishop to withdraw to h8, after White plays Be3-h6. Also, a rook on c8 facilitates ... Nc6-e5-c4 because it prevents an unchallenged Bxc4. * Developing the Queen to a5 or c7. From a5 the Queen eyes a2 and c3 and from c7 it adds to the build up of pressure along the half open c-file. * Advancing ... a7-a6-a5-a4 and ... b7-b5-b4 in order to augment the g7 bishop. * Black also needs to push ... h7-h5 in response to h4. The idea is to slow down White's attack. * In some instances, Black can exchange the rook on c8 for the knight on c3 in an effort to undermine White's pawn center. After the exchange sacrifice, Black has ... Nf6xe4, attacking the c3 pawn and the Queen on d2. Chess: The Unsounded Center What exactly makes this region unique? White's possession and control of d4 and e4 means: (i) Black is unable to use c5-e5 plus d5-f5 (ii) He stands the risk of being pushed back by d4-d5 and e4-e5 d4-e4 therefore gives White an offensive plus territorial advantage. If he can get in c4 and f4, his central presence becomes intimidating: The same is true if Black is ruler of d5-e5. White's home ground is invaded at d4 and f4 plus c4 and e4. He may also lose ground to d5-d4 and e5-e4. If Black can manage c5-d5-e5-f5 his central set-up also becomes threatening: In either one of the above cases, the side controlling the center usually aims to first secure it before assaulting; the opposing one often thrives to weaken and destroy it before offending. In short, an imposing center is both a boon and a responsibility. (1) Benko Gambit chessbenkogambit101.blogspot.com (2) Caro-Kann Defense chesscaro-kanndefense.blogspot.com (3) Center Counter chessalekhinesdefense.blogspot.com (4) Elephant Gambit chessbenonidefense.blogspot.com (5) English Opening chessenglishopening.blogspot.com (6) French Defense chessfrenchdefense.blogspot.com (7) Grob's Attack chessgrobsattack101.blogspot.com (8) Nimzo-Indian Defense chessnimzoindiandefense.blogspot.com (9) Queen's Gambit chessqueensgambitopening.blogspot.com (10) Ruy Lopez Opening chessruylopezopening.blogspot.com (11) Sicilian Scheveningen chessqueensindiandefense.blogspot.com (12) Trompowsky Opening chessalbincountergambit.blogspot.com DETERMINING STRATEGY THROUGH COMPUTER ANALYSIS: SICILIAN DEFENSE 1 e4 c5 2 f4: 2 ... Nf6 3 Nc3 d5 4 e5 d4 5 exf6. 2 ... d5 3 exd5 Qxd5 4 Nc3 Qd6 5 Nf3 Qxf4. 2 ... Nc6 3 Nc3 e6 4 Nf3 d5 5 Bb5 d4 6 Ne2 a6 7 Bc4. http://chessbishopsopening101.blogspot.com/ |
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