Chess (February): Hou scores big achievement in Gibraltar; Aronian wins in Wijk; Aeroflot begins

[Jack Rabbit]

5. Haast - Turov (Group C), Round 4

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There is no photo of Maxim Turov available with an internet-friendly copyright
[/center][font size="1"]Photo by Jon Sullivan from public-domain-photos.com (Public Domain)
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Anne Haast - Maxim Turov
http://www.chessgames.com/perl/chessgame?gid=1653951
Tata Steel Chess Tournament (Group C), Round 4
Wijk aan Zee, 17 January 2012

Caro-Kann Exchange Game: Panov Opening (Main Line)

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4

[center]BLACK[/center]

[center][/center]

[center]WHITE[/center]
[center]Caro-Kann Exchange Game: Panov Opening[/center]
[center]Position after 4.c2c4[/center]

4...Nf6 5.Nc3 Nc6

• [font color="red"](Semi-Slav Defense)[/font] If [font color="red"]5...e6 6.Nf3 Bb4[/font] then:
• If [font color="red"]7.cxd5 Nxd5[/font] then:
• If [font color="red"]8.Qc2 Nc6[/font] then:
• If [font color="red"]9.Bd3[/font] then:
• If [font color="red"]9...h6 10.0-0 0-0 11.a3[/font] then:
• If [font color="red"]11...Bd6 12.Qe2 Nce7[/font] then:
• If [font color="red"]13.Re1 Nf6 14.Bd2 Nf5 15.Rad1[/font] gives White a small advantage in space (Shadrina-Mrktchian, Euro ChW, St. Petersburg, 2009).
• [font color="burgundy"]13.Ne5 Nf5 14.Rd1 Nxd4 15.Qe4 Nf5 16.Nxd5 exd5 17.Qxd5 Bc7 18.Qxd8 Rxd8 19.Bf4 Re8[/font] is equal (Bologan-Epishin, Bundesliga 9899, Germany, 1999).
• If [font color="darkred"]11...Be7 12.Rd1 Bf6 13.Be4 Qd6 14.Qe2 Rd8 15.Bc2 Nxc3 16.bxc3 Ne7 17.Ne5[/font] gives White the advantage in space (Ghaem Maghami-Wang Yue, Mindsports Rapid, Beijing, 2008).
• If [font color="darkred"]9...Ba5 10.a3[/font] then:
• If [font color="darkred"]10...Nxc3 11.bxc3 Nxd4 12.Nxd4 Qxd4 13.Bb5+ Bd7 14.0-0[/font] then:
• If [font color="darkred"]14...Qd5 15.c4 Qf5 16.Bxd7+ Kxd7[/font] then:
• If [font color="darkred"]17.Qb3 b6[/font] then:
• If [font color="darkred"]18.Rd1+ Ke7 19.a4 Rhd8 20.Ba3+ Kf6 21.Bd6 g5 22.Qb2+ Kg6 23.Ra3[/font] then:
• If [font color="darkred"]23...e5 24.Qe2 f6[/font] then:
• [font color="darkred"]25.h4 g4 26.Rg3 h5 27.f3 Qf4 28.Kh2 Rac8 29.fxg4 Rxc4 30.Bxe5 Qxe5 31.gxh5+[/font] Black resigns (Napomniachtchi-Sulashvili, Euro Ch, Plovdiv, 2008).
• If [font color="magenta"]23...g4?! 24.h3 h5 25.Rg3[/font] then:
• If [font color="magenta"]25...f6?[/font] then White wins after [font color="magenta"]26.hxg4 hxg4 27.Rd4 Kf7 28.c5 Rg8 29.Rf4[/font] when the Black Queen will soon be forced to abandon the f-pawn (Tkachiev-Potkin, Euro Ch, Dresden, 2007).
• Better is [font color="darkorange"]25...Be1 26.hxg4 hxg4 27.Rd4 Bxf2+,[/font] but that may not be enough to save the game.
• [font color="burgundy"]25.Rad3 Rac8 26.Rd5 Re8 27.g4 Qf4 28.Qd3+ Kg7[/font] is equal (Nepomniachtchi-Rodshtein, Aeroflot Op, Moscow, 2008).
• If [font color="magenta"]17.Qb2 b6[/font] then:
• [font color="magenta"]18.Rd1+ Ke7 19.Be3 f6 20.c5 Rhd8 21.h3 Kf7[/font] give Black an extra pawn and more space (Topalov-Tukmakov, PCA Qual, Groningen, 1993).
• [font color="darkorange"]18.c5 Ke7 19.cxb6 axb6 20.Be3 Rhd8[/font] gives Black an extra pawn, but White has active counterplay (Aronian-Asian, Armenian Ch, Yerevan. 2001).
• [font color="purple"]18.Bb2 Ke7 19.Qg3 Rhd8 20.Rad1 Bd2 21.a4 Bf4[/font] gives Black the initiative (N. Kosintseva-Javakhishvili, OlW, Palma de Mallorca, 2004).
• If [font color="magenta"]14...Qe5 15.Bxd7+ Kxd7[/font] then:
• If [font color="magenta"]16.Qa4+ Ke7 17.Rb1 b6 18.Bf4[/font] then:
• [font color="magenta"]18...Qc5 19.Rb5 Qc8 20.Rg5 g6 21.Rg3 f6[/font] is equal (Ghaem Maghami-Karpov, Rpd, Tehran, 2009).
• [font color="purple"]18...Qf5 19.Rb5 Qg6 20.Rg5 Qf6 21.Rg3[/font] is equal (Nebolsina-Khotenashvili, World Jr ChG, Yerevan, 2007).
• [font color="darkorange"]16.Rb1 Bb6 17.Be3 Qc7 18.Qa4+ Ke7 19.Qb4+[/font] gives White a small advantage with the Black King in the center and unable to castle (Barendse-Strating, IT Reserve, Wijk aan Zee, 2000).
• If [font color="magenta"]10...h6 11.0-0 0-0[/font] then:
• If [font color="magenta"]12.Rd1 Nce7[/font] then:
• If [font color="magenta"]13.Ne5 Bd7 14.Ne4 Bc7 15.Qe2[/font] then:
• [font color="magenta"]15...Nf5 16.Nc5 Bc6 17.Nxc6 bxc6 18.Nxe6 fxe6 19.Qxe6+[/font] gives White more activity in compensation for a material deficit (Nepomniachtchi-Kharitonov, Euro Ch, 2008).
• [font color="hotpink"]15...Ba4 16.Re1 Nf5 17.Nc5 Nxd4 18.Qg4 Nf6 19.Qg3[/font] is equal (Andreikin-Dreev, Op, Baku, 2011).
• [font color="purple"]13.Ne4 Bc7 14.Ng3 Nf6 15.Ne5 Bd7 16.Ne4[/font] is equal (Thorhallsson-Rasmussen, Euro ChT, Crete, 2007).
• [font color="darkorange"]12.Be3 Nce7 13.Nxd5 Nxd5 14.Bh7+ Kh8 15.Be4 Bd7[/font] gives White command of the open file and the b1/h7 diagonal and more space; Black has better pawns (Adams-Ivanchuk, IT A, Wijk aan Zee, 2009).
• If [font color="darkred"]9.Be2 0-0 10.0-0 Be7 11.Rd1 Bf6 12.Ne4[/font] then:
• If [font color="darkred"]12...h6 13.Bc4[/font] then:
• [font color="darkred"]13...Bd7 14.Qe2 Rc8 15.b3 Rc7 16.Bb2 Be7 17.Rac1[/font] gives White a slight advantage in space (Oll-Adianto, Keres Mem, Tallinn, 1998).
• [font color="darkorange"]13...b6 14.Nxf6+ Qxf6 15.Bd2 Rd8 16.Qe4 Nce7 17.Ne5[/font] gives White a small advantage in space (Sykora-Shapiro, Corres, 2002).
• [font color="magenta"]12...Re8 13.Re1 Bd7 14.Qd3 g6 15.h4 h5[/font] is equal (T. Kosintseva-Ushenina, Europ ChW, Chisinau, 2005).
• If [font color="darkred"]8.Bd2 Nc6 9.Bd3 0-0 10.0-0 Be7[/font] then:
• If [font color="darkred"]11.a3 Bf6 12.Qc2 h6 13.Be3[/font] then:
• If [font color="darkred"]13...Nxc3 14.bxc3 e5[/font] then:
• [font color="darkred"]15.Rad1 exd4 16.cxd4 Bg4 17.Be4 Rc8 18.Qb1[/font] is equal (Moiseenko-And. Volokitin, Russian ChT, Sochi, 2005).
• [font color="burgundy"]15.Bh7+ Kh8 16.Be4 exd4 17.cxd4 Bg4 18.Bxc6 Rc8 19.Qe4[/font] is equal (Angel Dianni-Linna, Corres, 1999).
• [font color="magenta"]13...Nce7 14.Bh7+ Kh8 15.Be4[/font] then:
• [font color="magenta"]15...Bd7 16.Bxd5 Nxd5 17.Nxd5 exd5 18.Ne5 Be6 19.Qd2[/font] is equal (Nevednichy-Rianzantsev, Euro Ch, Dresden, 2007).
• [font color="darkorange"]15...Nxe3 16.fxe3 Nf5 17.Qf2 g6 18.g4 Nd6 19.Ne5[/font] gives White a small advantage in space (Sveshnikov-Zakharstov, Russian Ch, Elista, 2001).
• [font color="magenta"]a) 11.Qe2 Nf6 12.Ne4[/font] then:
• If [font color="magenta"]12...Qb6 13.a3 Bd7[/font] then:
• If [font color="magenta"]14.Rfd1 Rad8 15.b4[/font] then:
• [font color="magenta"]15...a6?! 16.Nc5 Bc8 17.Bg5 h6 18.Be3 Nd5 19.Rac1[/font] gives White a healthy advantage in space (Murariu-Svetushkin, Op, Bucharest, 2001).
• [font color="darkpink"]15...Bc8? 16.Nc5 Nxd4 17.Nxd4 Rxd4 18.Be3 Rd5 19.Nd7![/font] wins at least the exchange (Ghaem Maghami-Adianto, Mindsports Rpd, Beijing, 2008).
• [font color="burgundy"]15...Nxe4! 16.Bxe4 f5 17.Bxc6 Qxc6 18.Rac1 Qe4[/font] remains equal.
• If [font color="darkorange"]14.Be3 Nd5 15.b4[/font] then:
• If [font color="darkorange"]15...a6!? 16.Nc5 Rfd8 17.h4 Bf6 18.Rac1 Nce7[/font] then:
• If [font color="darkorange"]19.Ng5?! Bxg5[/font] then:
• [font color="darkorange"]20.Nxd7 Rxd7 21.hxg5 Ng6[/font] is equal (Del Rio Angelis-Baumann, European Club Cup, Halidiki, 2002).
• [font color="burgundy"]20.Bxg5 Bb5 21.Rfd1 h6 22.Bxe7 Nxe7 23.Qg4[/font] is equal.
• [font color="hotpink"]19.g4 g6 20.h5 Bb5 21.h6 Nc6 22.g5[/font] continues to give White a fair advantage in space.
• [font color="purple"]15...g6 16.Rfc1 a6 17.Rab1 Na7 18.Ne5[/font] gives White activity and freedom (van den Doel-Fontaine, Op, Brussels, 2000).
• If [font color="darkorange"]12...Bd7[/font] then:
• [font color="darkorange"]13.Rad1!? Nd5 14.Bb1 Qb6 15.Bg5 Rad8 16.Nc3 g6[/font] is equal (Ragger-Harikrishna, Bundesliga 0809, Baden-Baden, 2009).
• [font color="purple"]13.Rac1 Rc8 14.Nxf6+ Bxf6 15.Qe4[/font] gives White a better center and a small advantage in space.
• If [font color="magenta"]b) 11.Re1[/font] then:
• If [font color="magenta"]11...Nf6 12.Bg5[/font] then:
• If [font color="magenta"]12...b6 13.a3 Bb7 14.Bc2[/font] then:
• If [font color="magenta"]14...Rc8 15.Qd3 g6 16.Rad1 Nd5 17.Bh6 Re8[/font] then:
• If [font color="magenta"]18.Ba4[/font] then:
• If [font color="magenta"]18...a6 19.Nxd5 Qxd5[/font] then:
• [font color="magenta"]20.Qe3 Bf6 21.Bb3 Qd7 22.d5 exd5 23.Qxb6[/font] gives White stronger pawns and a small advantage in space (Beliavsky-Karpov, TRUD League, Soviet Union, 1986).
• If [font color="darkorange"]18...Bf8[/font] then:
• [font color="darkorange"]19.Bg5 Be7 20.h4 a6 21.Nxd5 exd5 22.Bxc6 Rxc6 23.Bxe7 Rxe7 24.h5[/font] gives White a small advantage in space (Mortensen-Ostenstad, ZT, Espoo, Finland, 1989).
• [font color="purple"]19.Qd2 Bg7 20.Ne4 Rf8 21.Ne5 f6 22.Bxg7 Kxg7[/font] is equal (Gaponenko-Charkhalashvili, Euro ChW, Rijeka, 2010).
• If [font color="darkorange"]20.Bb3!? Qh5![/font] then:
• [font color="darkorange"]21.Qe3?! Na5 22.Bf4 Bxf3 23.gxf3 Nxb3 24.Qxb3 Qf5[/font] gives Black stronger pawns and command of the c-file (Als. Maric-Ciuksyte, OlW, Palma de Mallorca, 2004).
• [font color="purple"]21.Bf4 g5 22.Bg3 g4 23.Ne5 Nxe5 24.dxe5[/font] remains equal.
• If [font color="darkorange"]14...Nd5 15.Qd3 g6[/font] then:
• If [font color="darkorange"]16.Bh6 Re8[/font] then:
• If [font color="darkorange"]17.Rad1 Nxc3 18.bxc3[/font] then:
• If [font color="darkorange"]18...Qd5 19.c4 Qh5 20.Bc1 Bf6[/font] then:
• [font color="darkorange"]21.h3 Rad8 22.d5 exd5 23.Rxe8+ Rxe8 24.cxd5[/font] gives White a passed pawn and the initiative (Larsen-Najdorf, IT, Palma de Mallorca, 1969).
• [font color="darkpink"]18.h4 Nxc3 19.bxc3 Na5 20.Ba4 Bc6 21.Bxc6 Rxc6 22.Ne5[/font] gives White a small advantage in space (Roiz-Döttling, Op, Tel Aviv, 2001).
• If [font color="hotpink"]18...Bxa3!? 19.Ng5![/font] then:
• [font color="hotpink"]19...Be7?! 20.Nxf7! Kxf7 21.Rxe6 Bf6 22.Rxe8 Kxe8 23.Qc4[/font] gives White an extra pawn, more activity and more space(Potkin-Galkin, Russian ChT, Sochi, 2004).
• [font color="purple"]19...Na5 20.Qh3 Qf6 21.Ba4 Red8 22.Rd3[/font] continues to give White a small adcantage in space, but Black has connected passers on the queenside.
• [font color="hotpink"]17.Ba4 Nxc3 18.bxc3 Qd6 19.h4 Rec8 20.h5[/font] is equal (Ostenstad-Scenkic, Euro Club Cup, Reythemnon, 2003).
• [font color="burgundy"]21.Qe3 Kg7 22.Be4 Rab8 23.Bb2 Na5 24.Qc1[/font] gives Black stronger pawns and White a sllight advantage in space (Yemelin-Galkin, Russian Ch, Tomsk, 2006).
• [font color="purple"]16.h4 Bxg5 17.Nxg5 Nce7 18.Qf3 Nxc3 19.Qxb7 Ncd5[/font] is equal (Salov-Beliavsky, IT, Madrid, 1995).
• If [font color="darkorange"]12...Nb4 13.Bb1[/font] then:
• If [font color="darkorange"]13...b6 14.a3 Nbd5 15.Qd3 g6[/font] then:
• If [font color="darkorange"]16.Bh6 Re8 17.Ne5 Bb7 18.Qh3 Bf8 19.Bg5[/font] gives White more freedom and space, making his isolated d-pawn easy to live with (Beim-Berendsen, Op, Dieren, 1997).
• [font color="purple"]16.Nxd5 Nxd5 17.Bh6 Re8 18.Ne5 Bf8 19.Qf3 Qf6[/font] is equal (Nei-Smyslov, Soviet Ch, Tbilisi, 1966).
• If [font color="hotpink"]13...Bd7 14.Ne5[/font] then:
• [font color="hotpink"]14...Bc6 15.Re3 g6 16.Rg3 Nd7 17.Bh6 Nxe5 18.Bxf8 Kxf8 19.dxe5[/font] gives White a small advantage in space (Portisch-Pachman, IT, Moscow, 1961).
• If [font color="purple"]14...Rc8? 15.Re3![/font] then:
• If [font color="purple"]15...g6 16.Bh6 Re8 17.Rg3[/font] then:
• If [font color="purple"]17...Bc6 18.a3 Nbd5 19.Bxg6!! hxg6 20.Nxg6[/font] then:
• If [font color="purple"]20...Kh7 21.Qd3[/font] Black resigns as he must either submit to mate or lose a forest's worth of wood (Shariyazdanov-Petukhov, Russian ChT, Sochi, 2004).
• If [font color="[font color="#FF4080"]20...fxg6[/font] then White wins after [font color="[font color="#FF4080"]21.Qd3 Nf4 22.Rxg6+ Kh8 23.Bxf4 Rg8 24.Qh3+.[/font]
• If [font color="burgundy"]17...Bd6[/font] then White wins after [font color="burgundy"]18.Bxg6 fxg6 19.Qb1 Re7 20.Rxg6+ .[/font]
• [font color="darkpink"]15...h6[/font] then White wins after [font color="darkpink"]16.Rh3 Nbd5 17.Bxh6 gxh6 18.Qd3 .[/font]
• If [font color="darkorange"]11...Bf6 12.Nxd5[/font] then:
• If [font color="darkorange"]12...exd5 13.Ne5 Qb6 14.Bc3 g6[/font] then:
• [font color="darkorange"]15.Qf3 Bg7 16.Qxd5 Be6 17.Qb5 Rfd8 18.Qxb6[/font] draw (Plaskett-Hillarp Persson, Op, St. Helier, Jersey, 2000).
• If [font color="purple"]15.a4[/font] then:
• [font color="purple"]15...a5?! 16.Qf3 Ne7 17.Bb5 Kg7 18.b4 axb4 19.Bxb4[/font] gives White more freedom and space (Melia-Kacheishvili, Op, Gibraltar, 2011).
• If [font color="hotpink"]15...Bxe5 16.dxe5 d4 17.Bd2 Re8 18.f4[/font] gives White a better center against Black's blockaded passer.
• If [font color="purple"]12...Qxd5 13.Be4[/font] then:
• [font color="purple"]13...Qd6 14.Bc3 Ne7 15.Ne5 Nd5 16.Bd2 Bd7 17.Qh5[/font] gives White a small advantage in space (Safarli-Khotenashvili, Op, Baku, 2008).
• If [font color="hotpink"]13...Qb5 14.Bc3 Ne7 15.Ne5 Nd5 16.a4 Qb6 17.Qd3[/font] gives White a better center and more space; Black is cramped (Vachier Lagrave-A. Spielmann, IT, Clichy, 2002).
• If [font color="darkred"]7.Bd3 dxc4 8.Bxc4 0-0 9.0-0[/font] (this position also commonly arises out of the Nimzo-Indian/Rubinstein:1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 c5 6.Bd3 d5 7.O-O dxc4 8.Bxc4 cxd4 9.exd4) then:
• If [font color="darkred"]9...b6[/font] then:
• If [font color="darkred"]10.Bg5[/font] then:
• If [font color="darkred"]10.Qe2 Bb7[/font] then:
• If [font color="darkred"]11.Bg5 Bb7 11.Re1[/font] then:
• If [font color="darkred"]11...Nbd7 12.Rc1 Rc8 [/font] then:
• If [font color="darkred"] 13.Bd3 Re8 [/font] then:
• If [font color="darkred"] 14.Qe2 Bxc3 15.bxc3 Qc7 [/font] then:
• If [font color="darkred"] 16.Bh4 Nh5[/font] then:
• [font color="darkred"]17.Qe3 Ndf6 18.Bxf6 Nxf6 19.Ne5 Nd5 20.Qh3 h6 21.Be4 b5[/font] is equal (Saunders-Wendorff, Cyberspace, 1999).
• [font color="burgundy"]17.Ng5 g6 18.Nh3 e5 19.f3 Qd6 20.Bf2[/font] is equal (Anand-Topalov, World Ch Match, Sofia, 2010).
• [font color="darkpink"]16.c4 Qd6 17.Rcd1 h6 18.Bc1 Qc7 19.Ne5[/font] draw (Chiburdanidze-Douven, IT, Amsterdam, 1986).
• If [font color="magenta"]14.Bh4[/font] then:
• If [font color="magenta"]14...Nf8 15.a3 Bxc3 16.bxc3 Ng6 17.Bg3 Nh5 18.a4[/font] is equal (Beliavsky-Nielsen, Bundesliga 0304, Germany, 2003).
• [font color="darkorange"]14...Be7 15.Ne5 Nxe5 16.dxe5 Nd5 17.Bxe7 Rxe7 18.Ne4[/font] is equal (Saravanan=Prakash, Indian Ch, Nagpur, 1999).
• If [font color="magenta"]13.Qb3 Bxc3 14.Rxc3 h6 15.Bh4[/font] then:
• If [font color="magenta"]15...Bd5 16.Bxd5 Rxc3[/font] then:
• [font color="magenta"]17.Qxc3 Nxd5 18.Bxd8 Nxc3 19.Bxb6 Nxa2 20.Bxa7 Ra8[/font] is equal and shorly agreed drawn (Lukas-Maceija, 1st Staurday February, Budapest, 1996).
• [font color="purple"]17.bxc3 exd5 18.Qa3 Qc8 19.Bxf6 Nxf6 20.Qxa7 Qxc3 21.Qxb6[/font] gives White a slight advantage, but she can't maintain the extra pawn (Danielian-Als. Maric Euro Club Cup W, Saint Vincent, 2005).
• [font color="darkorange"]15...Qe8 16.Nd2 Nd5 17.Rcc1 f5 18.f3 a6 19.a4[/font] gives White the advantage in space concentrated on the queenside; Black could bable to find counterplay on the kingside (Timofeev-Grigoriants, Aeroflot Op, Moscow, 2007).
• If [font color="magenta"]a) 11...Bxc3 12.bxc3 Nbd7 13.Bd3 Qc7[/font] then:
• If [font color="magenta"]14.Rc1 Rac8 15.Bh4[/font] then:
• [font color="magenta"]15...Rfe8 16.Bg3 Qc6 17.c4 Rcd8 18.Bf1[/font] gives White a small advantage in space (Speelman-Khumaren, Op, Dublin, 1993).
• [font color="purple"]15...Qf4 16.Bg3 Qg4 17.Be2 Qf5 18.Nd2 Rfd8 19.Nc4[/font] gives Black more space and stronger pawns, but he cannot exploit any of it; White has the initiative with the threat of [i[20.Nd6. winning a piece (Dvoretsky-E. Vasiukov, IT, Frunze, 1983).
• [font color="darkorange"]14.c4 Rfe8 15.Bh4 Rac8 16.Bg3 Qc6 17.a4[/font] gives White an impressive advantage in space (A. Mastrovasilis-Khetsuriani, Op, Athens, 2006).
• If [font color="magenta"]b) 11...Nc6 12.a3 Be7[/font] then:
• If [font color="magenta"]13.Qd3 Rc8 14.Rad1[/font] then:
• If [font color="magenta"]14...Nd5 15.Bxd5[/font] then:
• If [font color="magenta"]15...Bxg5 16.Be4 h6 17.d5 exd5 18.Bxd5[/font] then:
• [font color="magenta"]18...Rc7 19.Qe4 Qf6 20.Qg4 Bc8 21.Qc4 Bf4 22.Ne4[/font] gives White more activity and more power in the center (Bjarnason-Perunovic, Op, Reykjavik, 2008).
• [font color="burgundy"]18...Bf4 19.Qf5 Qf6 20.Qxf6 gxf6 21.g3 Bb8 22.Nh4[/font] gives White more activity, stronger pawns and more space (Lerner-Kaplan, IT, Givataim, Israel, 2005).
• [font color="darkpink"]15...exd5 16.Qf5 g6 17.Qxd5 Qxd5 18.Nxd5 Bxg5 19.Nxg5 Rfd8 20.Ne7+[/font] gives White a slight advantage.().
• [font color="darkorchid"]14...g6 15.Bh6 Re8 16.Ng5 Bf8 17.Qh3 Bxh6 18.Qxh6 Nxd4[/font] gives Black an extra pawn and White more space (Gurieli-Chiburdanidze, Candidates TW, Groningen, 1997).
• If [font color="darkorange"]13.Rc1[/font] then:
• If [font color="darkorange"]13...Rc8 14.Ba2 Nd5 15.Bd2 Nxc3 16.Bxc3[/font] then:
• [font color="darkorange"]16...Bf6 17.d5 exd5 18.Bxd5 h6 19.h3 Bxc3 20.Rxc3[/font] gives White the advantage in space and power in the center (Thorfinnsson-Edvardsson, Op, Reykjavik, 2000).
• [font color="purple"]16...Na5 17.Ne5 Bd5 18.Bb1 g6 19.Qg4 Nc4[/font] is equal (Nikolenko-G. Airapetian, Russian ChT HL, Dagomys, 2010).
• [font color="hotpink"]13...Nd5 14.Bd2 Nxc3 15.Bxc3 Bf6 16.d5 exd5[/font] draw (Gligoric-Karpov, IT, Tilburg, 1977).
• If [font color="magenta"]10.Qe2 Bb7[/font] then:
• If [font color="magenta"]11.Bg5 Bxc3 12.bxc3 Nbd7[/font] then:
• If [font color="magenta"]13.Ne5 Qc7 14.Nxd7 Nxd7 15.Rac1[/font] then:
• If [font color="magenta"]15...Qc6 16.f3 Rac8[/font] then:
• If [font color="magenta"]17.Bd3 Qd6[/font] then:
• [font color="magenta"]18.Rfd1 Rfe8[/font] then:
• [font color="magenta"]19.Qe3 Nf8 20.Bb5 Bc6 21.Ba6 Ra8 22.c4 Ng6[/font] draw (Johannessen-Nielsen, IT, Malmö, 2002).
• [font color="burgundy"]19.Qd2 Nf8 20.Bf4 Qd7 21.Be3 b5 22.Qe2 Bc6[/font] gives White a small advantage in space (Radjabov-Gelfand, Euro ChT, León, 2001).
• [font color="darkpink"]18.Rfe1 Rfe8 19.Qc2 h6 20.Bh4 Nf6 21.Bg3[/font] gives White a fair advantage in space (Hillarp Persson-Rizouk, Op, Salou, Spain, 2005).
• [font color="darkorchid"]17.Bb5 Qd6 18.Bh4 Nf6 19.Rfd1 Qa3 20.Qd2[/font] is equal (Lautier-Aronian, Petrosian Mem, Cyberspace, 2004).
• If [font color="darkorange"]15...Rfe8 16.Bb3 h6[/font] then:
• [font color="darkorange"]17.Bh4 Qc6 18.f3 b5 19.c4 bxc4 20.Bxc4[/font] gives White a small advantage with a better center (Krush-Maceija, IT, Guasdal, 2008).
• [font color="purple"]17.Bd2 Qc6 18.f3 b5 19.Qf2 Nb6 20.Qg3 Kh8[/font] is equal (Johannessen-Ostenstad, Norwegian Ch, Kristiansund, 2001).
• If [font color="darkorange"]13.Bd3 Qc7 14.Rac1[/font] then:
• If [font color="darkorange"]14...Ng4 15.Be4 Bxe4 16.Qxe4 Ngf6 17.Qe2[/font] then:
• If [font color="darkorange"]17...Rac8 18.c4 Qb7[/font] then:
• [font color="darkorange"]19.Rfe1 Qa6 20.Ne5 h6 21.Bh4 Rfe8 22.Bg3 Nxe5 23.Bxe5[/font] gives White a slight edge in space (Elson-Sosonko, ZT, Barcelona, 1975).
• If [font color="burgundy"]19.Qb2 Qa6 20.Qb3 Rc6 21.Rc2 Rfc8 22.Rfc1[/font] gives White a small advantage in space (Beliavsky-Karpov, Soviet Ol, Riga, 1975).
• If [font color="darkpink"]17...h6 18.Bd2 Qc6 19.c4 Rfc8 20.Rfe1 Qa4 21.Bf4[/font] is equal (Ljubojevic-Ivanchuk, Amber Blind, Monte Carlo, 1996).
• If [font color="purple"]14...Rfe8 15.Rfe1 Rac8 16.c4 h6 17.Bd2[/font] then:
• If [font color="purple"]17...Bxf3 18.Qxf3 e5[/font] then:
• [font color="purple"]19.d5 Nc5 20.Bf1 e4[/font] is equal (Gligoric-Maksimovic, Yugoslav Ch, Belgrade, 1999).
• If [font color="darkpink"]19.Qg3 exd4 20.Rxe8+ Nxe8 21.Bf4 Qc6 22.Bf5 Rd8[/font] gives Black an extraq pawn (Portisch-Karpov, IT, Bugojno, 1978).
• If [font color="hotpink"]17...Qd6 18.Bc3 Ng4 19.h3 Bxf3 20.Qxf3 Qh2+ 21.Kf1[/font] gives White a comfortable advantage in space (Wojtaszek-Meier, French ChT, Mulhouse, 2011).
• If [font color="darkorange"]11.Rd1 Nbd7[/font] then:
• If [font color="darkorange"]12.Bd2 Rc8 13.Bd3[/font] then:
• If [font color="darkorange"]13...Be7 14.Rac1 Nd5[/font] then:
• If [font color="darkorange"]15.Ba6 Nxc3 16.Bxc3 Bxa6 17.Qxa6[/font] then:
• If [font color="darkorange"]17...Rc7 18.d5[/font] then:
• [font color="darkorange"]18...Nc5 19.Qc4 Rd7 20.Qg4 g6 21.Nd4 Rxd5[/font]gives Black a small advantage in space (Kozma-Kholmov, IT. Kislovodsk, 1972).
• If [font color="burgundy"]18...exd5 19.Rxd5 Bf6 20.Qd3 Qc8 21.Ng5 Bxg5 22.Rxg5[/font] gives White significantly more activity and an impressive advantage in space (Smyslov-Darga, Capablanca Mem, Havana, 1964).
• If [font color="#FF2080"]17...Nf6 18.Qxa7 Ra8 19.Qb7 Rxa2 20.Ne5 Bd6[/font] is equal (Donner-Unzicker, TM, Holland, 1963).
• If [font color="#FF8080"]15.Bb1 N7f6 16.Bg5 g6 17.Bh6 Re8 18.Bd3[/font] is equal (Najdorf-Filip, Ol, Varna, 1962).
• If [font color="darkpink"]13...Bd6 14.Nb5 Bb8 15.Bg5 Qe8 16.Ne5 h6[/font] is equal (Gerzina-Strautins,Corres, 2006).
• If [font color="purple"]12.d5 Bxc3 13.dxe6 Bxf3[/font] then:
• If [font color="purple"]14.gxf3 fxe6 15.bxc3 Qc7[/font] then:
• If [font color="purple"]16.Bxe6+ Kh8[/font] then:
• [font color="purple"]17.Be3 Nc5 18.Bd5 Nxd5 19.Rxd5[/font] is equal (Gligoric-Unzicker, Ol, Leipzig, 1960).
• If [font color="hotpink"]14.Qxf3 Ne5[/font] then:
• If [font color="hotpink"]15.exf7+ Kh8 16.Rxd8 Nxf3+ 17.gxf3 Raxd8 18.bxc3[/font] then:
• [font color="hotpink"]18...Nd5 19.Bg5 Rd7 20.Re1 h6[/font] is equal (Lukacs-Suba, IT, Belgrade, 1984).
• If [font color="darkpink"]18...Rd7 19.Ba3 Rfxf7 20.Bxf7 Rxf7 21.Rd1 Rd7 22.Rxd7[/font] gives White a slight advamtage (Portisch-Donner, Euro ChT, Hamburg, 1965).
• If [font color="#FF8000"]15.Qe2 Qc7 16.Bb3 Neg4 17.g3 Qe5 18.Qxe5 Bxe5[/font] gives Black an extra piece, but White has more freedom and the iitiative (Donner-van den Berg, IT, Beverwijk, 1965).
• If [font color="burgundy"]16.Ba3 Nc5 17.Rd4 Kh8 18.Re1 Rac8 19.Qe5[/font] is equal (Aronian-Karjakin, Grnad Slam Masters, Bilbao, 2009).
• [font color="darkpink"]17.f4 Nc5 18.f5 Nfe4 19.Rd4 Nxe6 20.Rxe4 Nc5[/font] is equal (Donner-Portisch, Ol, Leipzig, 1960).
• If [font color="magenta"]9...a6 10.a4 Nc6 11.Bg5 Be7 12.Re1[/font] then:
• If [font color="magenta"]12...Bd7 13.Qe2[/font] then:
• If [font color="magenta"]13...Rc8 14.Rad1[/font] then:
• If [font color="magenta"]14...Nd5 15.Bxd5 Bxg5 16.Be4[/font] then:
• [font color="magenta"]16...Bf6 17.d5 exd5 18.Nxd5 Be6 19.Nf4 Qb6 20.Nxe6 fxe6 21.Qd3[/font] gives White a better center and stronger pawns (Chekhov-Sveshnikov, IT, Lvov, 1983).
• If [font color="burgundy"]16...Bh6 17.d5 exd5 18.Rxd5 Qc7 19.Bxh7+ Kxh7 20.Qd3+[/font] wins back the pieces with a huge advantage (Mamedyarov-Gyimesi, Euro ChT, Goteborg, 2005).
• If [font color="darkorange"]14...Nb4 15.Ne5 Be8 16.Bb3[/font] then:
• [font color="darkorange"]16...Kh8 17.Qf3 Bc6 18.Qh3 Nfd5 19.Bxe7 Qxe7 20.Qg3[/font] gives White more space; Black has fewer pawn weaknesses (Olafsson-Petrosian, IT, Los Angeles, 1963).
• [font color="purple"]16...Nfd5 17.Bd2 Bc6 18.Qg4 Nf6 19.Nxf7 Rxf7 20.Qxe6[/font] yields an extra pawn for White (Lautier-Bologan, French ChT, Noyon, 2001).
• If [font color="darkorange"]13...Nd5 14.Bxe7[/font] then:
• [font color="darkorange"]14...Ncxe7 15.Bxd5 Nxd5 16.Nxd5 exd5 17.Ne5 f6[/font] is equal (Gelfand-Dreev, IT A, Wijk aan Zee, 2002).
• [font color="purple"]14...Ndxe7 15.Rad1 Nb4 16.Ne5 Nbd5 17.Nxd5 Nxd5 18.Bxd5 exd5[/font] is equal (Yanofsky-Golombek, IT, Karlovy Vary/Marianske Lazne, 1948).
• If [font color="darkorange"]12...Nb4[/font] then:
• [font color="darkorange"]13.Ne5 b6 14.Qf3 Ra7 15.Rad1 Nc2 16.Rf1[/font] gives White a small advatage (Ivkov-Zinn, IT, Mirabor, 1967).
• If [font color="purple"]13.Qb3 Nc6 14.Rad1 Na5 15.Qa2 Nxc4 16.Qxc4[/font] then:
• [font color="purple"]16...h6 17.Bxf6 Bxf6 18.Ne5 Bd7 19.Ne4[/font] gives White more activity and a clear advantage in space (Gligoric-Buljovcic, IT, Novi Sad, 1976).
• If [font color="hotpink"]16...b5 17.axb5 axb5 18.Qxb5 Ba6 19.Qc6 Qb8[/font] is equal (Markos-Perunovic, Euro ChTU18, Balatonlelle, Hungary, 2001).
• [font color="blue"](Fafner Defense)[/font] If [font color="blue"]5...g6 6.Qb3 Bg7 7.Nge2 0-0 8.cxd5[/font] then:
• If [font color="blue"]8...Na6 9.g3[/font] then:
• If [font color="blue"]9...Qb6[/font] then:
• If [font color="blue"]10.Bg2 Rd8 11.0-0 Qxb3 12.axb3 Nb4[/font] then:
• [font color="blue"]13.d6 exd6 14.Bf4 a6 15.Rfd1 Nc6[/font] is equal (Altounian-Kamsky, Op, Las Vegas, 2008).
• [font color="steelblue"]13.Ra5 a6 14.Bf4 b6 15.Bc7 Rd7 16.Bxb6 Rb8 17.Rc5[/font] gives White an impressive advantage in space (Sorsa-Dolgov, Op, Jyvaskyla (Finland), 2000).
• [font color="slateblue"]10.Qxb6 axb6 11.Bg2 Nb4 12.0-0 Rd8 13.d6 Rxd6 14.Bf4 Rd7 15.Rfd1 Nbd5 16.Be5[/font] gives White a small advantage in space (Spassky-Petrosian, World Ch Rd 5, Moscow, 1966).
• If [font color="darkblue"]9...b5 10.a3 Nc7 11.Bg2[/font] then:
• [font color="darkblue"]11...Bb7 12.Nf4 Rb8 13.0-0 a5 14.Re1 Re8 15.Bd2[/font] is equal (Meier-al Sayed, Areoflot Op, Moscow, 2008).
• [font color="dodgerblue"]11...a5 12.0-0 a4 13.Qa2 Bf5 14.Bf4 Rc8 15.Rac1[/font] is equal (Naidisch-Iordachescu, French ChT, Mulhouse, 2011).
• If [font color="darkblue"]8...Nbd7[/font] then:
• If [font color="darkblue"]9.g3 Nb6 10.Bg2 Bf5 11.Nf4 Qd7[/font] then:
• [font color="darkblue"]12.a4 Rac8 13.0-0 Rfd8 14.a5 Nc4 15.Rd1[/font] is equal (Kobalia-Turov, Euro ChU18, Rimavska Sobota, 1996).
• [font color="darkcyan"]12.0-0 g5 13.Nfe2 h6 14.Rd1 Rfd8 15.d6 Qxd6 16.Bxb7 Rab8 17.Bg2[/font] is equal (Potkin-Turov, Russian Cup Qual, Cyberspace, 2004).
• [font color="dodgerblue"]9.Nf4 Nb6 10.Be2 a5 11.a4 Qd6 12.0-0 Rd8 13.Bf3 Qb4 14.Qd1 Bf5 15.g4 g5[/font] is equal (Amonatov-Davila, Ol, Turino, 2006).

6.Bg5

[center]BLACK[/center]

[center][/center]

[center]WHITE[/center]
[center]Caro-Kann Exchange Game: Panov Opening (MainLine[/center]
[center]Position after 6.Bc1g5[/center]

• The text is the Main Line of the Panov.
• [font color="red"](Panov Four Knights' Game)[/font] If [font color="red"]6.Nf3 Bg4 7.cxd5 Nxd5 8.Qb3 Bxf3 9.gxf3[/font] then:
• If [font color="red"]9...e6 10.Qxb7[/font] then:
• If [font color="red"]10...Nxd4 11.Bb5+ Nxb5 12.Qc6+ Ke7 13.Qxb5[/font] then:
• If [font color="red"]13...Qd7 14.Nxd5+ Qxd5[/font] then:
• If [font color="red"]15.Qxd5 exd5[/font] then:
• If [font color="red"]16.Be3 Ke6 17.0-0-0 Bb4[/font] then:
• If [font color="red"]18.Rd3 Rhc8+ 19.Kb1 Bc5[/font] then:
• [font color="red"]20.Rc1 Bb6 21.Rg1 Bxe3 22.Rxe3+ Kf6[/font] is equal and shortly agreed drawn (Adams-Ponomariov, IT, Sofia, 2005).
• [font color="burgundy"]20.Re1 Bxe3 21.Rdxe3+ Kf6 22.Re7 Rc4 23.Rd7 Rf4 24.Rd6+[/font] gives White a slight advantage with just a wee bit more activity (Stripunsky-Dreev, IT, Cyberspace, 2001).
• If [font color="darkred"]a) 18.Kb1 Rhd8 19.Rd3[/font] then:
• [font color="darkred"]19...a6 20.Rb3 Rab8 21.Ba7 Rb5 22.Bd4 f6 23.h3 Bd6[/font] gives Black a comfortable advantage in space (A. Sokolov-Spraggett, CM, St. John, New Brunswick, 1988).
• If [font color="magenta"]19...Rd7 20.Rc1[/font] then:
• [font color="magenta"]20...Rb8 21.Rc6+ Kf5 22.Ra6 Rbb7 23.a3 Be7[/font] is equal (L. Brunner-Adorjan, IT, Bled/Rogaska, 1990).
• If [font color="darkorange"]20...Rad8 21.Rc6+[/font] then:
• [font color="darkorange"]21...Kf5 22.Rd4 Be7 23.Rf4+ Ke5 24.Ra4 d4[/font] is equal.
• [font color="purple"]21...Ke7 22.a3 d4 23.Rc4 dxe3 24.Rxe3+ Kf6 25.Rxb4[/font] is equal.
• If [font color="darkred"]b) 18.a3 Rhc8+ 19.Kb1[/font] then:
• [font color="darkred"]19...Bc5 20.Rhe1 Bxe3 21.Rxe3+ Kd6[/font] then:
• [font color="darkred"]22.f4 Rab8 23.Rd4[/font] draw (Vaganian-Dreev, Soviet Ch, Odessa, 1989).
• [font color="darkorange"]22.b4 Re8 23.Kc2 Re5 24.Rd4 Rc8+ 25.Kb3 Rh5[/font] gives Black the initiative on White's h-pawn (Plenca-Pejic, Op, Pula, 2010).
• [font color="magenta"]19...Ba5 20.b4 Bb6 21.Rhe1 Kd6 22.Rd3 Bxe3 23.fxe3[/font] gives White a small advantage owing to his attack on the d-pawn (Tayer-Krnan, Canadian Closed, Toronto, 2006).
• If [font color="darkred"]16.0-0 Ke6 17.Re1+ Kf5[/font] then:
• If [font color="darkred"]18.Rd1 Rd8 19.Be3 Rd7 20.Rac1 Be7 21.Rd4[/font] then:
• If [font color="darkred"]21...g5 22.Ra4[/font] then:
• If [font color="darkred"]22...Bf6 23.b4 d4 24.Ra5+ Kg6 25.Bd2 Re8[/font] then:
• [font color="darkred"]26.Kf1 26...d3 27.Rd1 h6 28.Be3 Bc3[/font] favors Black with the advanced passed pawn, but White can fight back by winning White's a-pawn (Adams-Dreev, IT A, Wijk aan Zee, 2002).
• [font color="burgundy"]26.Rc6 Re6 27.Rxe6 fxe6 28.Kf1 h6[/font] gives Black a passed pawn; White has a distant majority (Baburin-Filipenko, Tumen, 1987).
• [font color="darkpink"]22.Rc6 Rhd8 23.Kf1 Bf6 24.Rb4 d4 25.Rb5+ Be5 26.Bxg5 Kxg5 27.Rxe5+[/font] gives White active Rooks against Black's exposed King (K. Brunner-Adorjan, World ChT, Lucerne, 1989).
• [font color="darkorchid"]21...Rb8 22.Rf4+ Kg6 23.b3 Rb4 24.Rg4+ Rxg4+ 25.fxg4 d4 26.Bd2 Kf6[/font] gives Black a small advantage from his passed d-pawn (Shchekachev-Bergez, Op, Fourmies, 2001).
• If [font color="magenta"]18.Be3[/font] then:
• If [font color="magenta"]18...Be7 19.Rac1 Bf6 20.Rc5 Rhd8[/font] then:
• [font color="magenta"]21.b4 Kg6 22.b5 d4 23.Bd2 d3 24.a4 Rac8 25.Rec1 Rxc5 26.Rxc5 Rd4 27.a5 Ra4[/font] draw (Smejkal-Filip, Czechoslovakian Ch, Luhacovice, 1968).
• [font color="purple"]21.b3 a6 22.Rd1 Ke6 23.Kf1 d4 24.Bf4 Rac8[/font] gives Black a passed pawn and command of an open file (Sermek-Golubovic, Op, Bled, 1994).
• [font color="hotpink"]21.Rd1 Ke6 22.b4 a6 23.a4 Rab8 24.Re1 Kf5 25.Rd1 Ke6[/font] is equal (Annaberdiev-Tologontegin, Ol, Khanty-Mansiysk, 2010).
• [font color="darkorange"]18...Bb4 19.Red1 Rhd8 20.Rac1 Rd7 21.Rd4 a5 22.a3[/font] gives White command of the c-file and a blockade of Black's passer (Kovacevic-Gymesi, Ol, Palma de Mallorca, 2004).
• If [font color="darkred"]15.Bg5+ f6 16.Qxd5 exd5 17.Be3 Ke6 18.0-0-0 Bb4[/font] then:
• If [font color="darkred"]19.a3 Rhc8+ 20.Kb1 Bc5 21.Rhe1[/font] then:
• If [font color="darkred"]21...Bxe3 22.Rxe3+ Kd6 23.Rde1[/font] then:
• If [font color="darkred"]23...Rc4[/font] then:
• [font color="darkred"]24.h3 Rd8 25.Re6+ Kc7 26.Rc1 Rd6 27.Re8 Rxc1+ 28.Kxc1 Rc6+[/font] is equal (Ivanchuk-Giri, Amber Blind, Monte Carlo, 2011).
• If [font color="burgundy"]24.Re7 Rh4 25.R1e6+ Kc5 26.Rxg7 Rxh2 27.Rxf6 Rxf2 28.Rxh7[/font] gives White at best a slight edge with an extra pawn and a passer, but Black also has a passer that is better protected (Belikov-Dreev, Op, Moscow, 1992).
• If [font color="darkpink"]23...Rd8 24.Re6+ Kc7 25.Kc2 Rab8 26.b4 a5 27.bxa5 d4 28.Re7+[/font] gives White a slight advantage owing to the speed with which he can attack Black's King (Nepomniachtchi-Hrcica, World Youth, Oropessa del Mar, 2001).
• If [font color="darkorchid"]21...Kd6[/font] then after [font color="darkorchid"]22.Bf4+ Kc6 23.Re6+ Kd7 24.Re2 d4 25.Be3[/font] the pin at d4 give White a slight advantage (Ragger-Ris, Bundesliga 0910, Mulheim, 2009).
• If [font color="magenta"]19.Rd3 Rhd8 20.Kb1[/font] then:
• If [font color="magenta"]20...Rd7 21.Rc1[/font] then:
• [font color="magenta"]21...Rad8 22.a3 Be7 23.Bd4 Bd6 24.b4 Bxh2 25.Rh1 Be5 26.Rxh7 g5[/font] gives Black more freedom (Borwell-K. Tikkanen, Corres, 1998).
• [font color="purple"]21...a5 22.Rc6+ Kf5 23.Rb6 Be7 24.Rb5 Ke6 25.a4 Bb4[/font] gives Black a small advantaage with more freedom; the White Rook at b5 cannot readily retreat (Bologan-Velicka, Op, Bern, 1999).
• [font color="darkorange"]20...a6 21.Rg1 g5 22.f4 h6 23.fxg5 hxg5 24.h4 gxh4 25.Rg4[/font] gives White more active Rooks (Andreikin-Yilmaz, World Jr Ch, Chotowa, Poland, 2010).
• If [font color="darkred"]13...Nxc3 14.bxc3 Qd5[/font] then:
• If [font color="darkred"]15.Qxd5 exd5[/font] then:
• If [font color="darkred"]16.Be3 Ke6 17.Rb1 Bd6 18.Kd2 Rhb8[/font] then:
• If [font color="darkred"]19.Rb3 a5 20.Rhb1 a4 21.Rxb8 Rxb8 22.Rxb8 Bxb8[/font] draw (Minev-Zita, Ol, Amsterdam, 1954).
• [font color="purple"]19.h3 a6 20.Rb3 Rb5[/font] draw (Foltys-Zita, IT, Szczawno Zdroj, 1950).
• [font color="darkorange"]16.Rb1 Rc8 17.Rb7+ Kf6 18.Be3 Bc5 19.Kd2 Rc6 20.Rhb1[/font] is equal (Timman-Solmundarson, Op, Reykjavik, 1972).
• [font color="magenta"]15.Rb1 Qxb5 16.Rxb5 Rc8 17.Rb7+ Kf6 18.Rg1 h6[/font] is equal (Howell-Hutchinson, British Ch, Scarborough, 2004).
• [font color="burgundy"]10...Ndb4 11.Bb5 Rc8 12.Be3 Be7 13.d5 exd5 14.Nxd5[/font] gives White an extra pawn (Peng-Stefanova, IT B, Wijk aan Zee, 2002).
• If [font color="darkred"]9...Nb6[/font] then:
• If [font color="darkred"]10.Be3 e6[/font] then:
• If [font color="darkred"]11.0-0-0 Be7 12.d5 exd5[/font] then:
• If [font color="darkred"]13.Nxd5 Nxd5 14.Rxd5 Qc7 15.Kb1 0-0 16.f4[/font] then:
• If [font color="darkred"]16...Nb4 17.Rd4[/font] then:
• If [font color="darkred"]17...Nc6 18.Rd5 Nb4 19.Rd4 Nc6[/font] then:
• [font color="darkred"]20.Rd1 Bf6 21.Bg2 Rfd8 22.Be4 Rxd1+ 23.Rxd1[/font] is equal (Anand-Karolyi, IT Frunze, 1987).
• [font color="darkpink"]20...Rad8 21.Bg2 Bf6 22.Qa4 Qc8 23.Rc1 Qg4 24.Be4 Nd4[/font] is equal (C. van Oosterom-Kroeze, Dutch Ch ½-final, Hilversum, 2007).
• [font color="burgundy"]17...Qc6 18.Rg1 Rad8 19.Rc4 Qh6 20.Be2 Nd5 21.Bf3[/font] is equal (Brynnell-Langheinrich, Bundesliga 0001, Godesberg, 2001).
• If [font color="magenta"]16...Rad8 17.Bg2 Bf6[/font] then:
• [font color="magenta"]18.Rc1 Rxd5 19.Bxd5 Qd7 20.Bxc6 bxc6 21.Qa4 Rb8 22.b3 Qf5+[/font] gives Black a slight advantage in space (Lenderman-Herman, Nat'l Chess Congress, Philadelphia, 2010).
• [font color="darkorange"]18.Rhd1 Rxd5 19.Rxd5 Rd8 20.a3 g6 21.Ka2 Rxd5 22.Qxd5[/font] is equal (Crosa-Izquierdo, Uruguayan Ch, Montevideo, 2001).
• [font color="burgundy"]13.Bxb6 Qxb6 14.Qxb6 axb6 15.Nxd5 Rxa2 16.Kb1 Ra5[/font] gives Black a slight advantage with an active Rook.
• [font color="darkpink"]11.Rg1 Bb4 12.0-0-0 Bxc3 13.bxc3 g6 14.d5 Nxd5 15.c4[/font] leaves Black standing to win a Knight. (Jansa-Kraut, SX, West Germany, 1988).
• If [font color="magenta"]10.d5 Nd4[/font] then:
• If [font color="magenta"]11.Bb5+ Nd7 12.Qa4[/font] then:
• If [font color="magenta"]12...Nxb5 13.Qxb5 g6 14.0-0 Bg7 15.Re1 0-0 16.Bg5[/font] then:
• If [font color="magenta"]16...f6 17.Bf4 Ne5 18.Re3 Qc8 19.Bg3[/font] then:
• [font color="magenta"]19...Re8 20.Rae1 Kf8 21.Bxe5 fxe5 22.Ne4 Qf5 23.Nc5[/font] gives White a more aggressive game (Gaponenko-Chevannes, Euro ChTW, Crete, 2007).
• If [font color="burgundy"]19...Rf7 20.Rae1 Bf8 21.Qb3 Qd7 22.Ne4 Qf5 23.Rc3[/font] gives White more activity and more space (Ragger-Salem, Aeroflot Op, Moscow, 2009).
• If [font color="hotpink"]16...Re8 17.d6 Bf6 18.dxe7 Rxe7 19.Rxe7 Bxe7 20.Rd1[/font] gives White a firm initiative (Potkin-Wang Hao, TM Rpd, Ningbo, 2010).
• After [font color="purple"]12...e5 13.dxe6 Nxe6 14.Bg5 Nxg5 15.0-0-0[/font] White will get the piece back; draw agreed (Bologan-Boges Matoes, Anibal Op, Linares, 1999).
• If [font color="darkorange"]11.Qd1 e5 12.dxe6 fxe6 13.Be3 Bc5[/font] then:
• [font color="darkorange"]14.Bg2 Qh4 15.0-0 Bd6 16.h3[/font] is equal (Malaniuk-Yusadin, Soviet Ch, Moscow, 1958).
• If [font color="purple"]14.b4 Qf6 15.bxc5 Nxf3+ 16.Ke2 0-0[/font] then:
• [font color="purple"]17.Bg2 Rad8 18.cxb6 Rxd1 19.Rhxd1 Nh4 20.Bd4 Qf5 21.Be4[/font] gives White the material advantage (Su. Polgar-Skembris, Op, Korfu, 1990).
• If [font color="hotpink"]17.cxb6 Rad8 18.Qc2 Nd4+ 19.Bxd4 Qxd4[/font] then:
• If [font color="hotpink"]20.f3 Rxf3[/font] then [font color="hotpink"]21.Nd1!![/font] forces mate: If [font color="hotpink"]21...Qe5+ 22.Kxf3 Rf8+[/font] then:
• [font color="hotpink"]23.Kg4 Qf4+ 24.Kh3 Qf3+ 25.Kh4 Rf4+ 26.Kg5 Qg4#[/font] and yes, that really happened (NN-Chandler, X, London, 1977).
• If [font color="darkpink"]23.Qf5[/font] then [font color="darkpink"]23...Rxf5+ 24.Kg2 Qe4+ 25.Kg1 Qg4+ 26.Bg2 Qd4+ 27.Nf2 Qxf2#[/font]
• [font color="burgundy"]20.Ne4 Qxa1 21.bxa7 Rc8 22.Qd3 Qxa2+ 23.Ke3 Qxa7+ 24.Ke2 Qa2+ 25.Ke3 Rc2[/font] gives Black a tremendous attack.

6...Be6 7.Be2

• If [font color="red"]7.a3[/font] then:
• If [font color="red"]7...g6 8.Bxf6 exf6[/font] then:
• If [font color="red"]9.c5 Bg7 10.Bb5 0-0 11.Nge2 f5[/font] then:
• If [font color="red"]12.Qd3 f4[/font] then:
• [font color="red"]13.Rd1 Bg4 14.h3 Bxe2 15.Nxe2 f3 16.gxf3 Re8[/font] (Freidel-Wang Hao, World Cup, Khanty-Mansiysk, 2010).
• [font color="burgundy"]13.Bxc6 bxc6 14.Nxf4 Qb8 15.Qd2 Bh6 16.Nce2 Re8[/font] gives Black a better center, command of the b-file, more activity for his pieces, the Bishop pair and superior development; White has an extra pawn and stronger pawns (Solodovnichenko-Herman, Crespi Mem, Milan, 2010).
• [font color="darkpink"]12.0-0 Qf6 13.Bxc6 bxc6 14.f4 Bc8 15.Qd3 a5[/font] gives Black more freedom to grab more space (Friedel-Granda Zuñiga, Pan-Am Ch, São Paulo, 2009).
• [font color="darkorchid"]9.g3 Qd7 10.Bg2 Ne7 11.c5 h5 12.Qf3 Bg7[/font] is equal (Kobalia-Grigoriants, Russian Ch HL, Taganrog, 2011).
• If [font color="darkred"]7...Qd7 8.b4[/font] then:
• If [font color="darkred"]8...dxc4 9.Bxf6 gxf6 10.d5 0-0-0[/font] then:
• [font color="darkred"]11.dxc6 Qxc6 12.Qa4 Qxa4 13.Nxa4 Bh6 14.Be2[/font] is equal (Wunderlich-Hofstetter, Corres, 2002).
• [font color="darkorange"]11.Bxc4!? Ne5! 12.Bb5 Qc7 13.Nge2 a6! 14.Qd4 axb5[/font] gives Black a fair advantage thanks to the pin at d5 (Lanka-Adianto, Op, Adelaide, Australia, 1990)
• [font color="magenta"]8...Rd8 9.Bxf6 gxf6 10.c5 a6 11.g3 Bg4[/font] gives White more space and the initiative (Gaujens-Wunderlich, Corres, 2007)
• If [font color="blue"]7.Nf3[/font] then:
• If [font color="blue"]7...Ne4[/font] then:
• If [font color="blue"]8.Nxe4 dxe4 9.d5 exf3[/font] then:
• If [font color="blue"]10.dxe6 Qa5+ 11.Qd2 Qe5+ 12.Qe3[/font] then:
• [font color="blue"]12...Qxb2 13.exf7+ Kxf7 14.Rd1 Qb4+ 15.Rd2 Rd8 16.Qxf3+[/font] gives White a small advantage in space (Shavana-Kacheishvili, Euro Ch, Kusasdasi, Turkey, 2006).
• [font color="darkcyan"]12...Qa5+ 13.Qd2 Qe5+ 14.Be3 Qxe6 15.Qd5 Qf6 16.0-0-0[/font] is equal (Thorfinnsson-Thorgeirsson, Op, Reykjavik, 2011).
• [font color="dodgerblue"]10.Qxf3?! Ne5! 11.Qc3 Bc8!! 12.Qxe5 f6! 13.Bxf6 gxf6[/font] gives Black an extra Bishop (Bardason-Tinjaca, Corres, 1999).
• If [font color="darkblue"]8.c5 Bg4 9.Be3[/font] then:
• If [font color="darkblue"]9...Nxc5?! 10.dxc5 d4[/font] then:
• [font color="darkblue"]11.Bxd4?! Bxf3 12.Qxf3 Qxd4 13.Bb5 Qxc5 14.0-0 e6[/font] is equal (Timofeev-So, Aeroflot Op, Moscow, 2010).
• [font color="darkcyan"]11.Qb3 Bxf3 12.gxf3 dxe3 13.fxe3 Rb8 14.Rd1[/font] gives White a comfortable advantage in space.
• [font color="dodgerblue"]9...Nxc3 10.bxc3 e6 11.Qb3 Qd7 12.Ne5[/font] gives White a slight advantagee in space.
• If [font color="darkblue"]7...g6 8.Bxf6 exf6[/font] then:
• If [font color="darkblue"]9.c5 Bg7 10.h3[/font] then:
• [font color="darkblue"]10...0-0 11.Bb5 Rc8 12.0-0 f5 13.Qd2 h6 14.Bxc6 bxc6 15.Ne5[/font] is equal (I. Zaitsev-Shamkovich, IT, Moscow, 1967).
• [font color="darkcyan"]10...h5 11.Bb5 Qc7 12.b4 0-0 13.Bxc6 bxc6 14.0-0[/font] is equal (Gipslis-Zurek, Op, Pardubice, 1994).
• [font color="dodgerblue"]9.Be2 Bb4 10.c5 Bxc3+ 11.bxc3 0-0 12.Nd2 Na5[/font]is equal (Teterev-Kryvoruchko, Euro Club Cup, Rogaska Slatina, Slovenia, 2011).
• If [font color="#008000"]7.Bxf6 gxf6[/font] then:
• If [font color="#008000"]8.c5[/font] then:
• If [font color="#008000"]8...Qd7 9.Bb5 Rg8 10.g3 0-0-0[/font] then:
• [font color="#008000"]11.Qh5 Bg4 12.Qxh7 Qe6+ 13.Kf1 Nxd4 14.Qxg8 Bh6[/font] gives Black the initiative; both sides must be careful (Mainka-Miles, Op, Bad Wörishofen, 1989).
• [font color="#808000"]11.Nge2 Bg4 12.Qd3 e5 13.Bxc6 Qxc6 14.b4 e4[/font] is equal (Blum-Skeels, Corres, 2000).
• [font color="#254117"]8...h5 9.Bb5 Bh6 10.Nge2 Rg8 11.g3 Qd7 12.f4[/font] is equal (Naiditsch-Sutovsky, IT, Poikovsky, 2009).
• If [font color="#6CC417"]8.Nf3 Qd7 9.Be2[/font] then:
• [font color="#6CC417"]9...Rd8 10.cxd5 Bxd5 11.Nxd5 Qxd5 12.0-0 Bh6 13.Qc2[/font] (Fedorowicz-Miles, US Ch, New York, 1988).
• [font color="forestgreen"]9...Rg8 10.cxd5 Bxd5 11.Nxd5 Qxd5 12.0-0 Bh6 13.Qd3[/font] is equal (Cueto Chajtur-V. Georgiev, Ol, Torino, 2006).

7...Qa5 8.Nf3

• If [font color="red"]8.c5 Ne4[/font] then:
• If [font color="red"]9.Bd2[/font] then:
• [font color="red"]9...Nxd2 10.Qxd2 g6 11.Bb5 Bg7 12.h3 0-0 13.Nf3[/font] is equal (Howell-Berczes, Op, Winterthur, 2008).
• [font color="burgundy"]9...Qd8 10.Bf3 Nxd2 11.Qxd2 g6 12.Nge2 h5 13.Nf4[/font] gives White a slight advantage in space (Robson-Berkes, IT, Paks, Hungary, 2010).
• If [font color="darkred"]9.Nf3 Bg4[/font] then:
• [font color="darkred"]10.Bd2 Nxd2 11.Nxd2 Bxe2 12.Nxe2 g6 13.Qb3 0-0-0[/font] gives Black a slight advantage in space (Timofeev-Khairullin, Russia Cup, Belgorad, 2010).
• [font color="magenta"]10.Qb3 0-0-0 11.Be3 e5 12.0-0 Bxf3 13.Bxf3[/font] is equal.

8...dxc4

• [font color="red"]8...0-0-0 9.0-0 dxc4 10.Qc1 Bg4 11.Ne5 Nxd4 12.Nxc4[/font] (Christ-Berezovsky, German Ch, Altenkirchen, 2001).

9.0-0 Rd8 10.Re1

• [font color="red"]10.Rc1 Nxd4 11.Nxd4 Rxd4 12.b4 Qd8 13.Be3 Rd7[/font] gives Black a small initiative (Ramesh-Adianto, Op, Sakthi Madras, Indonesia, 1996).

10...a6 (N)

• [font color="red"]10...h6 11.Bxf6 gxf6 12.Bf1 Bg7 13.Rxe6 fxe6 14.Bxc4 f5[/font] leaves Black a clear exchange to the good; White has active minor pieces (Kulaots-Fauland, Euro Ch, Aix-les-Bains, 2011).
• [font color="blue"]10...b5 11.Qc1 b4 12.Bxf6 bxc3 13.d5 Bxd5 14.Bxc3[/font] gives White more activity and the initiative (Stocek-Zurek, Czech ChT 0203, Czechia, 2002).

11.a4 h6

• Black has an extra pawn and a fair advantage in space.

12.Bxf6 gxf6 13.Bf1

• [font color="red"]13.d5 Bxd5 14.Nxd5 Qxd5 15.Qc2 b5 16.axb5 axb5[/font] gives Black a piece for two pawns.

13...Qf5?!

• The veteran Turov is a stronger player than the 18-year-old Dutch woman. He allows himself liberties he probably woundn't take against an opponent closr to his playing strength.
• Black needs to complete his development before undertaking any concrete action.
• Better is [font color="red"]13...Bg4 14.d5 Ne5 15.Be2 Bxf3 16.Bxf3 h5[/font] when Black continues to possess an extra pawn and more space; the Bishop can now develop via g7 or h6.

14.Ne4?!

• White misses an excellent restraining move.
• Fritz recommends [font color="red"]14.a5! Nxa5 15.Qa4+ Nc6 16.Bxc4 Bxc4 17.Qxc4 Rg8[/font] with equality.

14...Rg8

• Black continues to enjoy a small advantage with an extra pawn and more space.

15.Rc1?!

• Black begins to falter against her more experienced opponent.
• If [font color="red"]15.g3 h5 16.Bg2 Nb4 17.Nc5 Bd5 18.Nh4 Qg4[/font] gives White a fair advantage in space.

15...Bd5!

• Black finds the best reply, putting pressure on White's centralized Knight.

16.Nh4 Qf4!

• Black keeps pressure on the centralized Knight.
• If [font color="red"]16...Qxe4?! 17.Rxe4!! Bxe4[/font] then:
• [font color="red"]18.Qe1 f5 19.f3 Bd3 20.Bxd3 cxd3 21.Rd1[/font] gives White a better center and stronger pawns; Black has command of the g-file, but also an immobile Bishop.
• [font color="darkred"]18.Rxc4 f5 19.g3 Bg7 20.Bg2 Bf6 21.Nf3[/font] gives White power in the center and better pawns; BlaCK compenstes for his weak pawns wioth control of the g-file.

17.Qf3

• If [font color="red"]17.Bxc4?[/font] then:
• Black wins after [font color="red"]17...Bxe4! 18.Qb3 Rg7 19.Qxb7 Rb8 20.Qxa6 Rxb2[/font] when he is a piece to the good.
• If [font color="darkred"]17...Bxc4? 18.Rxc4 Qxh4 19.d5 Qf4[/font] then:
• If [font color="darkred"]20.Rxc6 bxc6 21.Qc1 Rxg2+ 22.Kxg2 Qg4+[/font] then:
• [font color="darkred"]23.Kh1 Qf3+ 24.Kg1 Qg4+ etc. draws.[/font]
• [font color="darkorange"]23.Ng3?! cxd5! 24.Qc6+ Qd7 25.Qxa6 e6 26.a5 Rb8[/font] gives Black an extra pawn.
• [font color="magenta"]20.g3 Rg6 21.Qc2 Rxd5 22.Rxc6 bxc6 23.Qxc6+ Rd7 24.Qc8+ Rd8 25.Qc6+ etc.[/font] draws.

17...Qxf3

• The text is the only playable move.
• If [font color="red"]17...Qxh4??[/font] drops the Queen and the game to [font color="red"]18.Nxf6+!! Qxf6 19.Qxf6 Bg7 20.Qf4.[/font]

18.Nxf3 Bxe4 19.Rxe4

[center]BLACK: Maxim Turov[/center]

[center][/center]

[center]WHITE: Anne Haast[/center]
[center]Position after 19.Re1e4:B[/center]

19...f5!

• Black attacks the Rook at e4, giving White a choice between two plans.
• If [font color="red"]19...e6?! 20.Rxc4! f5 21.Re3 Bg7[/font] then:
• [font color="red"]22.Rd3 Bf6 23.h3 Ke7 24.Rc5 Kd6 25.Rd2 Rc8[/font] leaves Black with only a small advantage in space.
• [font color="darkred"]22.Rc1 Bxd4 23.Rb3 Na5 24.Nxd4 Rxd4[/font] gives Black more space and White more freedom owing to the attack on b7 that ties Black's Knight to the defense of the pawn.

20.Rf4

• White chooses to recover her lost pawn. The alternative is to keep pressure on the King.
• If [font color="red"]20.Ree1 Nxd4 21.Nxd4 Rxd4[/font] then:
• [font color="red"]22.Bxc4 Rg6 23.g3 Rb6 24.b3 e6[/font] gives Black an extra pawn, more freedom and a substanial advantage in space.
• [font color="darkred"]22.Rxc4 Rxc4 23.Bxc4 Rg4 24.b3 Rd4[/font] gives Black an extra pawn and more freedom.

20...Rg4

• Black can preserve the pawn at f5 and surrender the one at c4.
• If [font color="red"]20...e6 21.Rxc4 Rg4[/font] when:
• [font color="red"]22.g3 Rxf4 23.gxf4 Be7 24.h4 f6 25.Bg2 Kf7[/font] gives Black fewer pawn weaknesses.
• If [font color="darkred"]22.Rxg4 fxg4[/font] then:
• [font color="darkred"]23.Ne5 Na5 24.Rc7 Bd6 25.Rc3 Bxe5 26.dxe5 Rd4[/font] gives Black the initiative and a comfortable advantage in space.
• [font color="magenta"]23.d5 Rxd5 24.Rxg4 Rd1 25.Rc4 Rb1 26.Rc2 Bg7[/font] assures Black of winning back the extra pawn.

21.Rxf5

• White temporarily recovers the pawn minus.
• [font color="red"]21.Rxg4?! fxg4 22.Ne5 Nxe5 23.dxe5 b5 24.axb5 axb5[/font] continues to give Black the benefit of the extra pawn, now manifest as a queenside majority.

21...e6 22.Rh5 Nxd4

• Black again is a pawn to the good.

23.Ne5 Re4 24.Nxc4

• Each side has five pawns.

24...Nb3 25.Rc3 Rd1 26.g3?

• This costs White material, but in the most elegant way.
• Surviving is [font color="red"]26.Ne3 Rxe3 27.fxe3 Nd2 28.Kf2[/font] when:
• [font color="red"]28...Ne4+! 29.Ke2 Nxc3+ 30.bxc3 Rc1 31.Rh4 Rxc3[/font] leaves Black with an extra pawn.
• [font color="darkred"]28...Bg7?[/font] drops a piece to [font color="darkred"]29.Ke2! Rb1 30.Rc8+ Kd7 31.Rg8 Bxb2.[/font]

[center]BLACK: Maxim Turov[/center]

[center][/center]

[center]WHITE: Anne Haast[/center]
[center]Position after 26.g2g3[/center]

26...Rxc4!!

• Black begins the combination by sacrificing the exchange.

27.Rxc4 Rxf1+!

• Black sacrifices another exchange.

28.Kxf1 Nd2+!

• White caps off the combination by winning the Rook, leaving his with two minor pieces against a Rook.

29.Ke2 Nxc4 30.b3

• [font color="red"]30.Rh4 Nxb2 31.a5 f5 32.Rd4 Be7 33.h3 Ba3[/font] continues to give Black an extra pawn.

30...Nd6 31.Rh4 Bg7 32.Kd3

• White might last longer after [font color="red"]32.Rg4 Kf8 33.Rh4 f5 34.Kd3 Ke7 35.f3 Kf7.[/font

32...f5 33.f3 Kf7 34.Rb4

• If [font color="red"]34.Kc2 e5 35.Kd1 Kg6[/font] then:
• If [font color="red"]36.g4 Kg5 37.Rh3 fxg4 38.Rg3[/font] then:
• [font color="red"]38...h5! 39.fxg4 hxg4 40.h3 Bf6 41.Rg2 e4[/font] passes the e-pawn.
• Also good is [font color="magenta"]38...Bf8 39.Rxg4+ Kf6 40.Rg8 Kf7 41.Rg2 Nf5.[/font]
• [font color="darkred"]36.Rh3 h5 37.g4 hxg4 38.fxg4 fxg4 39.Rg3 Kg5[/font]passes the e-pawn and gives Black more freedom.

[center]BLACK: Maxim Turov[/center]

[center][/center]

[center]WHITE: Anne Haast[/center]
[center]Position after 26.g2g3[/center]

34...e5!

• The e-pawn threatens to pass.

35.g4

• This is the only way to keep the e-pawn from passing.
• The pawn passes in [font color="red"]35.Rh4 Kg6 36.a5 e4+ 37.fxe4 fxe4+ 38.Kc2 Bd4.[/font]

35...e4+ 36.Ke2

• If [font color="red"]36.Ke3[/font] then after [font color="red"]36...Bc3! 37.Rb6 f4+ 38.Kxf4 Bd2+ 39.Kg3 e3[/font] the pawn queens.

36...fxg4 37.fxe4 Bc3 38.Rb6 Ke6 0-1

• Black's position is safe.
• If [font color="red"]39.Kf1 Bd4[/font] then:
• [font color="red"]40.Rxd6+ Kxd6 41.Kg2 h5[/font] Black wins easily.
• [font color="darkred"]40.e5 Bxb6 41.exd6 Kxd6 42.Kg2 Ke5 43.Kg3 h5[/font] wins.
• [font color="blue"]39.Ke3[/font] loses quickly to [font color="blue"]39...Be5 40.a5 Bxh2.[/font]
• Mw. Haast resigns.