E04x — Catalan: Open, 5.Nf3 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte f4, case forte e5, case forte g5, Bd2 actif, paire de fous, colonne c.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bg2 enfermé, 3 pièces non développées (B1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nc3 — Développer Nb1
● h3 — Empêcher ...Bg4
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (4v2), case forte d5, avant-poste d5(C), Bb4 actif, paire de fous, colonne d.
Faiblesses adverses : Bg2 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, 3 pièces non développées (C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)
● ...Bg4 — Clouer Nf3
● ...e5 — Rupture
● ...f6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E04x — Open

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5

Eval: [+0.21]

Les coups candidats

8.Bxb4 — 83.8% (2394 parties)

Ambassadeurs : Langer, Raimund (22x), Szczepanski, Zbigniew (15x), Gromotka, Harry (11x), Frijling, Jeroen (10x), Frolyanov, Dmitry (10x), Aleksandrov Ivanchev, Aleksandar (10x), Mason, Ian J (10x), Potrata, Janko (9x)

8.Qb5 — 11.4% (327 parties)

Ambassadeurs : Campbell, Eoin S. (9x), Rawlings, Alan J C (5x), Kaupert, Vanildo João (5x), Burmeister, Ferdinand (5x), Nickoloff, Bryon (3x), Tkachiev, Vladislav (3x), Heiermann, Ludger (3x), Vanheste, Jeroen (2x)

8.Qc2 — 1.6% (45 parties)

Ambassadeurs : Iljiushenok, Ilia (3x), Slobodjan, Roman (2x), Dittmar, Peter (1x), Antic, Danijel (1x), Zivanic, Marko (1x), Kishnev, Sergey (1x), Nedobora, Mikhail (1x), Miller, Evgeny (1x)

8.O-O — 1.3% (37 parties)

Ambassadeurs : Baklanov, Valentin Petrovich (2x), Ning, Kaiyu (2x), Huebner, Robert (1x), Luther, Thomas (1x), Akesson, Ralf (1x), Sokolov, Andrei (1x), Golubovic, Boris (1x), Palac, Mladen (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Bxb4	8.Qb5	8.Qc2	8.O-O
<1800	30	80%	13%	—	3%
1800-2200	804	85%	10%	1%	2%
2200-2600	1753	82%	13%	2%	1%
2600+	93	86%	9%	3%	1%

Évolution par décennie (% des parties)

Décennie	N parties	8.Bxb4	8.Qb5	8.Qc2	8.O-O
1940s	1	100%	—	—	—
1950s	2	100%	—	—	—
1960s	1	100%	—	—	—
1980s	9	89%	11%	—	—
1990s	142	84%	13%	—	1%
2000s	561	86%	8%	1%	2%
2010s	1751	86%	11%	0%	1%
2020s	390	71%	17%	7%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Bxb4	86%	71%	▼ -15.1%
8.Qb5	11%	17%	▲ +6.2%
8.Qc2	0%	7%	▲ +7.0%
8.O-O	1%	3%	▲ +2.0%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 4 parties
Ju, Wenjun — 3 parties
Karpov, Anatoly — 2 parties
Kasparov, Garry — 1 partie
Hou, Yifan — 1 partie
Anand, Viswanathan — 1 partie
Botvinnik, Mikhail — 1 partie
Gukesh D — 1 partie

Parties historiques

8.Bxb4 — 83.8% (2394 parties)

1949 — Aizenshtadt, Mark vs Taimanov, Mark — 0-1 — Leningrad RUS
1954 — Veltmander, Iogannes vs Gipslis, Aivars — 1/2-1/2 — Riga LAT
1956 — Zilber, Israel vs Rovner, Dmitry — 1-0 — Leningrad RUS
1960 — Shamkovich, Leonid vs Vladimirov, Boris T — 1/2-1/2 — Moscow RUS
1980 — Filipek, Alex vs Juricek, Stanislav — 1-0 — corr ch-CSSR

8.Qb5 — 11.4% (327 parties)

1989 — Vanheste, Jeroen vs Sosonko, Gennadi — 1/2-1/2 — Amsterdam NED
1990 — Stajcic, Nikola M vs Siklosi, Zoltan — 0-1 — Kecskemet HUN
1991 — Fominyh, Alexander vs Plachetka, Jan — 1/2-1/2 — Rimavska Sobota SVK
1994 — Romanishin, Oleg M vs Dokhoian, Yury — 1-0 — Bonn
1995 — Taylor, Gordon vs Littke, Adam — 1-0 — Ottowa ch-CAN

8.Qc2 — 1.6% (45 parties)

2000 — Slobodjan, Roman vs Kishnev, Sergey — 1-0 — Solingen GER
2001 — Slobodjan, Roman vs Dittmar, Peter — 1/2-1/2 — Arco ITA
2001 — Antic, Danijel vs Zivanic, Marko — 1/2-1/2 — Belgrade SRB
2005 — Scholseth, Tor Kristian vs Jakubowski, Krzysztof — 0-1 — Gausdal NOR
2005 — Ritsema, Ronald J. E. vs João, Névio — 0-1 — ICCF

8.O-O — 1.3% (37 parties)

1993 — Huebner, Robert vs Luther, Thomas — 1/2-1/2 — Duitsland tt
2000 — Akesson, Ralf vs Sokolov, Andrei — 1-0 — Upplands Vasby SWE
2000 — Golubovic, Boris vs Palac, Mladen — 1/2-1/2 — chT-SLO Bled SLO
2002 — Rauk, Tonu vs Vaher, Andres — 1-0 — Tallinn EST
2002 — Donaldson, John vs Lobo, Richard — 0-1 — San Francisco, CA USA

	♔ Blancs	♚ Noirs
Pions doublés	—	● c4, ● c7
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 4v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v1), ● e5 (2v1), ● g5 (2v1)	● d5 (2v0)
Cases faibles	● b4	—
Centre	● e5 (2v1)	● d5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bd2	● Bd2 Actif (mob. 7)
Bg2	● Bg2 Enfermé (mob. 2)
Bb4		● Bb4 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	● bishop d2	● knight c6
Non développées	3 (b1, a1, h1)	3 (c8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Au centre !
Droits de roque	O-O / O-O-O	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e2-e3	● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
11th Sinquefield Cup 2024 - Round 2 - Gukesh, D - 1/2-1/2 - Nepomniachtchi, Ian - G7 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. O-O Bxd2 9. Nfxd2 O-O 10. e3 e5
1956 URS Ch sf – Round ? – Zilber, Israel – 1-0 – Rovner, Dmitry – G41 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Na3 a6 10. Ne5 Bd7
2. FIDE GP 2008 – Round 7 – Grischuk, Alexander – 1/2-1/2 – Gelfand, Boris – G36 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 O-O
3. London Chess Classic 2011 – Round 1 – Kramnik, Vladimir – 1/2-1/2 – Nakamura, Hikaru – G4 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 O-O
36. Olympiad 2004 – Round 12 – Ehlvest, Jaan – 1-0 – San Segundo Carrillo, Pablo – G417 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qxb5 Nc2+
80. Tata Steel GpA 2018 – Round 2.3 – Matlakov, Maxim – 1/2-1/2 – So, Wesley – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Nc3 Bd7 10. O-O a5
Amber Blindfold 1999 – Round 8 – Karpov, Anatoly – 1/2-1/2 – Kramnik, Vladimir – G39 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qd1 Nd5
Corus 2001 – Round 13 – Kasparov, Garry – 1/2-1/2 – Adams, Michael – G83 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qxb5 Nc2+
Corus 2002 – Round 5 – Gelfand, Boris – 1/2-1/2 – Van Wely, Loek – G35 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 a6
Corus 2002 – Round 9 – Kasimdzhanov, Rustam – 1-0 – Van Wely, Loek – G60 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qxb5 Nc2+
Corus A 2009 – Round 10 – Aronian, Levon – 1-0 – Adams, Michael – G62 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Nc3 a6 10. Ne5 O-O
FIDE GP 2002 – Round 1.1 – Karpov, Anatoly – 0-1 – Van Wely, Loek – G4 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qxb5 Nc2+
FIDE WCh KO 2001 – Round 1.1 – Delchev, Aleksander – 1-0 – Timoshenko, Georgy – G12 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O a6 10. Ne5 O-O
Grand Slam Final Masters 2010 – Round 3 – Anand, Viswanathan – 1/2-1/2 – Kramnik, Vladimir – G5 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 O-O
Interpolis 1989 – Round 9 – Ivanchuk, Vasyl – 0-1 – Korchnoi, Viktor – G30 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qxb5 Nc2+
Shanghai Masters 2010 – Round 5 – Aronian, Levon – 0-1 – Kramnik, Vladimir – G9 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Nc3 Bd7 10. O-O a5
Sinquefield GCT TB 2018 – Round 1 – So, Wesley – 1/2-1/2 – Caruana, Fabiano – G1 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 O-O
Sparkassen 2006 – Round 3 – Leko, Peter – 1/2-1/2 – Adams, Michael – G7 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qxb5 Nc2+
Superbet Classic 2021 – Round 3.2 – Deac, Bogdan-Daniel – 1/2-1/2 – Mamedyarov, Shakhriyar – G11 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 O-O
SuperGM 2000 – Round 2 – Bareev, Evgeny – 1/2-1/2 – Adams, Michael – G5 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. a3 b5 10. Qxb5 Nc2+
Tata Steel India Rapid 2019 – Round 9.5 – Giri, Anish – 1/2-1/2 – So, Wesley – G45 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 O-O
USA Ch 2018 – Round 7.4 – Xiong, Jeffery – 1/2-1/2 – Zherebukh, Yaroslav – G40 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Nc3 Bd7 10. O-O a5
Vugar Gashimov Mem 2018 – Round 2.4 – Wojtaszek, Radoslaw – 1/2-1/2 – Mamedyarov, Shakhriyar – G9 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Ne5 O-O 10. Nxc6 Nxc6
World Blitz 2019 – Round 17.36 – Fridman, Daniel – 1-0 – Frolyanov, Dmitry – G1144 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Nc3 Bd7 10. O-O a5
World Rapid 2016 – Round 6.31 – Vallejo Pons, Francisco – 0-1 – Aleksandrov, Aleksej – G231 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Qb5 Bxd2+ 9. Nbxd2 c3 10. bxc3 Nxc3
World Rapid 2019 – Round 2.77 – Pashikian, Arman – 1/2-1/2 – Batchuluun, Tsegmed – G143 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. O-O Rb8 10. Na3 O-O
World Rapid 2021 – Round 9.4 – Gelfand, Boris – 0-1 – Abdusattorov, Nodirbek – G535 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 Nxb4 9. Nc3 Rb8 10. a3 Nd5

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