In chess , the Dragon Variation is one of the main lines of the Sicilian Defence and begins with the moves:
34-905: B70 or B-70 may refer to: B70 (chess opening) , a code for the Dragon Variation from the Encyclopaedia of Chess Openings B70 (New York City bus) , a public transit line in Brooklyn in New York City B-70 Valkyrie , a planned American supersonic bomber aircraft Bundesstraße 70, a federal highway in Germany CD86 , a human protein also called B70 HLA-B70 , an HLA-B serotype West Bromwich , UK postcode The pennant number assigned to Turkish battlecruiser TCG Yavuz Sultan Selim Bestune B70 ,
68-400: A pawn avalanche , is a chess tactic in which several pawns are moved in rapid succession toward the opponent's defenses. A pawn storm usually involves adjacent pawns on the flank of the board, such as the queenside (a-, b-, and c- files ) or the kingside (f-, g-, and h-files). A pawn storm can also happen on the center of the board. When involving only two pawns,
102-440: A pawn roller is a chess tactic in which two connected passed pawns are used to mutually defend each other to promotion . This allows the pawns to more easily travel down the board without possibly being captured . This differs from a pawn storm, as a pawn storm utilizes more than two pawns to travel down the board, and a pawn storm is typically used to attack or overwhelm an opponent's defenses. An exact type of formation of
136-593: A Yugoslav-style attack is still playable after both 6.Be2 g6 or 6.f4 g6. Some famous exponents of the Dragon are Veselin Topalov , Andrew Soltis , Jonathan Mestel , Chris Ward , Sergei Tiviakov , Alexei Fedorov , Mikhail Golubev , the late Tony Miles and Eduard Gufeld . Garry Kasparov used the Dragon with success as a surprise weapon against world title challenger Viswanathan Anand in 1995 but did not use it subsequently. The Dragon saw its popularity declining in
170-403: A mating net before taking decisive action. Another common reason for launching a pawn storm is to simply activate one's pieces, especially the rooks, by opening files. A pawn storm can also be used to lead to material gain or a strategic advantage. Strategic advantages that can result from pawn storms include the creation of outposts , the weakening of the opponent's pawn structure , or simply
204-457: A pair of very potent bishops which, together with the queen on c7, will cause trouble for the White king. Better (and the main line) is 12. Bd4 e5 13. Bc5 Be6!! Capturing the exchange after 14. Bxf8? relinquishes too much control of the dark squares after 14...Qxf8. Instead, the theory continues 14. Ne4 Re8 with a complex positional battle ahead. The purpose of 9.Bc4 is to prevent Black from playing
238-414: A pawn storm/roller is a pawn phalanx , which is when two or more pawns are next to each other on the same rank, allowing them to control more squares in front and support each other's advances. One can launch a pawn storm for many reasons. Probably the most common of these is to initiate a mating attack, in which the pawns are used to open files for pieces, or less commonly to brick in the king and form
272-507: A queen sacrifice - Golubev credits "J. Diaz" and himself with discovering it independently in 1996: 9.0-0-0 d5!? 10.Kb1!? Nxd4 11.e5! Nf5! 12.exf6 Bxf6 13.Nxd5 Qxd5! 14.Qxd5 Nxe3 15.Qd3 Nxd1 16.Qxd1 Be6!, where Black has almost sufficient compensation for the queen. Instead of 10. Kb1!?, the main line continues 10. exd5 Nxd5 11. Nxc6 bxc6. While the pawn on d5 appears to be hanging, the seemingly obvious 12. Nxd5? runs into 12...cxd5 13. Qxd5 Qc7! when 14. Qxa8 Bf5 15. Qxf8+ Kxf8 leaves Black with
306-496: A sedan [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=B70&oldid=1228262838 " Category : Letter–number combination disambiguation pages Hidden categories: Short description
340-400: A space advantage. These benefits are especially typical in the case of a queenside minority attack . When a pawn storm is taking place on a wing, if the attacking pawns are advancing against a greater number of pawns than the ones that are being used to attack, it is called a minority attack . Pawn storms can also lead to the gain of several tempi if the pawns can manage to repeatedly kick
374-399: A time of difficulty in the 9...d5 line facing a brilliant idea by Ivanchuk which seemed to give White the advantage. Some Black players began experimenting with 9...Bd7 and 9...Nxd4. A brilliancy found for White one day is soon enough overturned by some new resource for Black. A case in point is the following line where the evaluation of a major line was turned upside down overnight because of
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#1732783295990408-408: Is an exchange sacrifice on c3 by Black to break up White's queenside pawns, and sacrifices to open up the long diagonal for Black's bishop on g7 are also common. An example of both ideas is the line 9.Bc4 Bd7 10.0-0-0 Rc8 11.Bb3 Ne5 12.h4 Nc4 13.Bxc4 Rxc4 14.h5 Nxh5 15.g4 Nf6 16.Bh6 Nxe4! 17.Qe3 Rxc3!. The Soltis Variation was the main line of the Dragon up until the late 1990s. Garry Kasparov played
442-442: Is considered mandatory, as after 6...Bg7 7.e5 Nh5 8.Bb5+ Bd7 9.Qe2 Bxb5 10.Qxb5+ Nd7 11.Nf3 dxe5 12.fxe5 a6 13.Qe2 Qb6 14.Bd2 Qe6 15.0-0-0 Nxe5 16.Rhe1 White has some initiative. The Harrington–Glek Variation is another option for White. Named for Grandmaster Igor Glek , who has devoted considerable effort evaluating the resulting positions for White. 6.Be3 Bg7 7.Be2 0-0 8.Qd2!? GM John Emms wrote, "Although it's difficult to beat
476-495: Is different from Wikidata All article disambiguation pages All disambiguation pages B70 (chess opening) In the Dragon, Black's bishop is fianchettoed on g7, castling on the king's side while aiming the bishop at the center and queenside . In one of the most popular and theoretically important lines, the Yugoslav Variation, White meets Black's setup with Be3, Qd2 and Bh6, exchanging off
510-636: The King's Indian Defense , White will take up a pawn storm on the queenside in order to win material, while Black will create a pawn storm on the kingside in order to begin a mating attack. The aforementioned minority attack can arise from a great many openings, a notable one being the Exchange Queen's Gambit . The Closed Ruy Lopez also frequently sees Black engage in a queenside pawn storm so as to gain space and subsequently gain play on that side. The Modern Benoni can also lead to pawn storms, typically in
544-514: The pawn structure and allow the opponent to create checkmate threats. Pawn storms can also be stopped by way of restraining their movement and blockading the pawns. When organized in a pawn phalanx, pawns do not defend each other, so they require other pieces for support to remain strong, or they will become weak and vulnerable to attacks. A pawn storm will often be directed toward the opponent's king after it has castled toward one side (e.g. Fischer – Larsen , 1958 ). Successive advances of
578-753: The Black kingside and deliver mate down the h-file, while Black seeks counterplay on the queenside with sacrificial attacks. Typical White strategies are exchanging dark-squared bishops by Be3–h6, sacrificing material to open the h-file, and exploiting pressure on the a2–g8 diagonal and the weakness of the d5 square. Black will typically counterattack on the queenside, using the queenside pawns, rooks, and dark squared bishop. Black sometimes plays ...h5 (the Soltis Variation) to defend against White's kingside attack. Other typical themes for Black are exchanging White's light-squared bishop by ...Nc6–e5–c4, pressure on
612-624: The Chinese Dragon. The Classical Variation, 6.Be2, is the oldest White response to the Dragon. It is the second most common White response behind the Yugoslav Attack. After 6...Bg7, White has two main continuations: The Levenfish Attack, 6.f4, is named after Russian GM Grigory Levenfish who recommended it in the 1937 Russian Chess Yearbook. It is not currently very common in the highest levels in chess. White prepares 7.e5, attacking Black's f6-knight. Therefore, 6...Nc6 or 6...Nbd7
646-409: The Dragon bishop, followed by launching a kingside pawn storm with h4–h5 and g4. To involve the a1-rook in the attack, White usually castles queenside, placing the white king on the semi-open c-file. The result is often both sides attacking the other's king with all available resources. The line is considered one of the sharpest of all chess openings . The modern form of the Dragon
680-575: The Dragon formation without 2...d6, White must watch out for ...d5 which often immediately equalises. Lines where Black does this include the Accelerated Dragon (1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6) and Hyper-Accelerated Dragon (1.e4 c5 2.Nf3 g6). Another option for Black is to play what has been called the "Dragodorf", which combines ideas from the Dragon with those of the Najdorf Variation . While this line may be played via
714-416: The Dragon move order (see the Yugoslav Attack with 9.Bc4). Black can arrive at it with a Najdorf move order: 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 g6 (or 5...g6 6.Be3 a6), with the idea of Bg7 and Nbd7. Such a move order would be used to try to avoid a Yugoslav type attack; for instance, after 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6, White could play 6.Be2 or 6.f4. In both cases, especially
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#1732783295990748-560: The Yugoslav in terms of sharp, aggressive play, 7.Be2 0-0 8.Qd2!? also contains a fair amount of venom ... White's plans include queenside castling and a kingside attack. And there's a major plus point in that it's much, much less theoretical!" After the main moves 8...Nc6 9.0-0-0 we reach a tabiya for the position. Here, Black has several options for continuation, listed in order of popularity: Other options on White's sixth move include 6.Bc4, 6.f3, and 6.g3. When Black adopts
782-460: The c-file, sacrificing the exchange on c3, advancing the b-pawn and pressure on the long diagonal. Black will generally omit ...a6 because White will generally win in a straight pawn attack since Black has given White a hook on g6 to attack. In general, White will avoid moving the pawns on a2/b2/c2, and so Black's pawn storm will nearly always be slower than White's on the kingside. Black can frequently obtain an acceptable endgame even after sacrificing
816-413: The centre for White, and on the queenside for Black. The objective of pawn rollers is typically to advance to promotion. However, some pawn rollers can also be used as a pawn storm; pawn rollers can be used to attack an enemy's defenses. Sometimes, piece sacrifices are made in order to make a pawn storm effective or to make a pawn storm work, as they can help open up the position for other pieces or for
850-468: The constellation Draco . The earliest known printed reference, found by chess historian Edward Winter , is in the Jan-Feb 1914 issue of Wiener Schachzeitung . The main line of the Dragon continues: 6. Be3 Bg7 7. f3 7... 0-0 8. Qd2 Nc6 The Yugoslav Attack with 9.Bc4 exemplifies the spirit of the Dragon with race-to-mate pawn storms on opposite sides of the board. White tries to break open
884-469: The exchange because of White's h-pawn sacrifice and doubled pawns. After years of players believing that White's best play and chance for advantage lay in the main line with 9. Bc4, this older main line made a major comeback. White omits Bc4 in order to speed up the attack. It used to be thought that allowing 9...d5 here allows Black to equalize easily but further analysis and play have proven that things are not so clear cut. In fact, recently Black experienced
918-429: The freeing move ...d6–d5. The variations resulting from this move are notorious for having been heavily analysed. In addition to covering d5, White's light-squared bishop helps cover White's queenside and controls the a2–g8 diagonal leading to Black's king. However, the bishop is exposed on c4 to an attack by a rook on c8, and usually has to retreat to b3, giving more time for Black to organize an attack. Common in this line
952-427: The late 1990s as a result of White resuscitating the old line with 9.0-0-0; however, recently there has been a resurgence after a number of new ideas in the 9.0-0-0 line were formulated by Dragon devotees. The Encyclopaedia of Chess Openings ( ECO ) has ten codes for the Dragon Variation, B70 through B79. After 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6, there is: Pawn storm A pawn storm , sometimes called
986-439: The latter, a Yugoslav-style attack loses some momentum. Usually the bishop is more ideally placed on c4, where it can pressure f7 and help defend the white king (though the 9.0-0-0 variation of the Dragon shows that this is not completely necessary), and if White plays f4 and then castles queenside, they must always be on guard for Ng4 ideas, something which the move f3 in traditional Dragon positions usually discourages. Nonetheless,
1020-525: The move three times in the 1995 World Championship against Viswanathan Anand, scoring two wins and a draw. The line goes 9.Bc4 Bd7 10.0-0-0 Rc8 11.Bb3 Ne5 12.h4 h5 (the key move, holding up White's kingside pawn advance). Other important deviations for Black are 12...Qa5 and 12...Nc4. More recently, White players have often avoided the Soltis by playing 12.Kb1, which has proven so effective that Black players have in turn tried to dodge this with 10...Rb8, known as
1054-560: The opponent's pieces, but this is not a usual motive in itself. Pawn storms are typical in several openings. The first plan can be clearly seen in such sharp openings as the Sicilian Najdorf or the Yugoslav Attack , among others. In both of these cases, many lines will see White and Black castle on opposite sides of the board, and play for checkmate by throwing everything they can at each other's king. In many lines of
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1088-495: The pawns on that side might rapidly cramp and overwhelm the opponent's position. In game 9 of the Classical World Chess Championship 1995 between Viswanathan Anand and Garry Kasparov , Anand played as the white pieces and Kasparov played as the black pieces. During the game, Anand was able to launch a queenside attack with a pawn storm, leading to his win against Kasparov in the round. On
1122-438: The pawns themselves. Pawn storms and rollers can however become weak if not executed properly. Overextension can occur, where pawns are too far advanced without sufficient support, leaving the pawns vulnerable to attacks. They can also be predictable, allowing the opponent to counterattack. When pawns advance, they cannot move backwards, so squares they leave undefended behind them can become weak. Pawn storms can also weaken
1156-516: Was originated by German master Louis Paulsen around 1880. It was played frequently by Henry Bird that decade, then received general acceptance around 1900 when played by Harry Nelson Pillsbury and other masters. In his 1953 autobiography, the Russian chess master and amateur astronomer Fyodor Dus-Chotimirsky claimed that he coined the name "Dragon Variation" in 1901, after the fancied resemblance between Black's kingside pawn structure and
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