E15g — Queen’s Indian: Nimzowitsch, 5.Nbd2 Bb4

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Nbd2 Bb4 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte e5, paire de fous.
Faiblesses adverses : roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, menace e5, libère Bf1
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb4 actif, Ba6 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, 3 pièces non développées (B8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Nc6 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...c5 — Rupture
● ...d6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E15g — Nimzowitsch

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Nbd2 Bb4

Eval: [+0.18]

Les coups candidats

6.Qc2 — 68.9% (901 parties)

Ambassadeurs : Romanishin, Oleg M (13x), Sax, Gyula (12x), Timman, Jan H (11x), Tregubov, Pavel V. (10x), Rajkovic, Dusan (10x), Van der Wiel, John T.H. (8x), Ftacnik, Lubomir (8x), Rakic Vulicevic, Marija (8x)

6.Qa4 — 15.8% (207 parties)

Ambassadeurs : Lechtynsky, Jiri (5x), Peev, Peicho (4x), Gulko, Boris (4x), Sax, Gyula (4x), Bonin, Jay (4x), Urkedal, Frode Olav Olsen (4x), Koneru, Humpy (4x), Ree, Hans (3x)

6.Qb3 — 9.6% (126 parties)

Ambassadeurs : Chandler, Cliff R (6x), Czerwonski, Aleksander (4x), Redzepagic, Rolando (2x), Alcock Michael (2x), Fedorowicz, John (2x), Van der Wiel, John T.H. (2x), Kwiatkowski, Feliks J (2x), Sigurjonsson, Gudmundur (2x)

6.a3 — 4.1% (53 parties)

Ambassadeurs : Bukal, Vladimir Jr. (4x), Korchnoi, Viktor (2x), Saadman Safin, Saad Chowdhury (2x), Fodor, Tamas Jr. (2x), Sax, Gyula (2x), Krutiansky, A. (1x), Bebchuk, Evgeni (1x), Grivas, Efstratios (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Qc2	6.Qa4	6.Qb3	6.a3
<1800	11	45%	18%	9%	18%
1800-2200	218	69%	19%	6%	3%
2200-2600	873	70%	15%	10%	4%
2600+	102	75%	18%	3%	5%

Évolution par décennie (% des parties)

Décennie	N parties	6.Qc2	6.Qa4	6.Qb3	6.a3
1930s	1	100%	—	—	—
1950s	1	100%	—	—	—
1960s	1	—	—	—	100%
1970s	16	56%	38%	—	6%
1980s	149	53%	15%	28%	3%
1990s	181	73%	12%	10%	3%
2000s	423	77%	9%	8%	4%
2010s	419	66%	23%	6%	4%
2020s	116	67%	21%	7%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Qc2	66%	67%	▲ +1.1%
6.Qa4	23%	21%	▼ -2.0%
6.Qb3	6%	7%	▲ +1.2%
6.a3	4%	4%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 6 parties
Carlsen, Magnus — 5 parties
Hou, Yifan — 4 parties
Tal, Mikhail — 2 parties
Botvinnik, Mikhail — 2 parties
Kasparov, Garry — 1 partie
Karpov, Aleksandr — 1 partie
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie

Parties historiques

6.Qc2 — 68.9% (901 parties)

1931 — Pirc, Vasja vs Nimzowitsch, Aaron — 1/2-1/2 — Bled SLO
1954 — Kholmov, Ratmir D vs Kopylov, Nikita — 1-0 — Leningrad ch22-SU sf
1971 — Scholz, Guillermo vs Cruz, Raul C. — 1-0 — ARG-CHI Santiago CHI
1971 — Korchnoi, Viktor vs Parma, Bruno — 1-0 — Erevan ARM
1974 — Andrew Veda Watson Solomon vs Christiansen, Larry — 0-1 — 02, Canadian op

6.Qa4 — 15.8% (207 parties)

1971 — Portisch, Lajos vs Keres, Paul Petrovich — 1/2-1/2 — Amsterdam NED
1974 — Gulko, Boris vs Katalymov, Boris — 1-0 — USSR
1975 — Heilemann, Paul vs Popov, Gennadios — 0-1 — CCOL7 fin-01 7275
1977 — Peev, Peicho vs Pokojowczyk, Jerzy — 1-0 — Smolian-Pamporovo
1977 — Johansson Rexner, Melker vs Enterfeldt, A — 1-0 — ?

6.Qb3 — 9.6% (126 parties)

1980 — Alburt, Lev vs Lein, Anatoly — 1/2-1/2 — Hastings ENG
1980 — Kasparov, Garry vs Speelman, Jon S — 1-0 — La Valetta
1980 — Torre, Eugenio vs Alburt, Lev — 1/2-1/2 — Hastings ENG
1981 — Povah, Nigel E vs Fedorowicz, John — 1/2-1/2 — London ENG
1981 — Boersma, Paul vs Van der Wiel, John T.H. — 0-1 — Leeuwarden ch-NED

6.a3 — 4.1% (53 parties)

1968 — Krutiansky, A. vs Bebchuk, Evgeni — 1-0 — Moscow RUS
1973 — Marcus, Joost vs Van Scheltinga, Theo — 1-0 — Leeuwarden NED
1981 — Raicevic, Vladimir vs Nikolic, Predrag — 0-1 — YUG-ch Borovo
1982 — Halouzka, Jiri vs Zlebcik, Ladislav — 1-0 — CZE-ch1 corr8284
1985 — Biyiasas, Peter vs Lobo, Richard — 1-0 — San Francisco, CA USA

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● a7→b6, c7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (2v0)	● d5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 8)
Ba6		● Ba6 Actif (mob. 4)
Paire de fous	● Oui	● Oui
Clouages	● knight d2	—
Non développées	4 (c1, f1, a1, h1)	3 (b8, 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	● c4-c5, ● d4-d5, ● e2-e3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1931 Bled – Round 1 – Pirc, Vasja – 1/2-1/2 – Nimzowitsch, Aaron – G66 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qd1 Bxd2+ 9. Bxd2 d6 10. O-O Nbd7
1954 Leningrad ch22-SU sf – Round 18 – Kholmov, Ratmir D – 1-0 – Kopylov, Nikita – G54 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 O-O 7. Bg2 d5 8. O-O c5 9. dxc5 bxc5 10. Ne5 Bxd2
4. Norway Chess 2016 – Round 1.2 – Carlsen, Magnus – 1-0 – Harikrishna, Pentala – G2 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qa4 c5 7. a3 Bxd2+ 8. Bxd2 O-O 9. dxc5 bxc5 10. Bg2 Qb6
40. Olympiad Open 2012 – Round 6.11 – Sebenik, Matej – 0-1 – Iordachescu, Viorel – G345 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qa4 c5 7. a3 Bxd2+ 8. Bxd2 O-O 9. Bg2 Bb7 10. dxc5 bxc5
41. Olympiad Open 2014 – Round 8.13 – Indjic, Aleksandar – 1-0 – Sadler, Matthew D – G549 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qa4 c5 7. dxc5 Bxc5 8. b4 Be7 9. Bg2 Bb7 10. O-O O-O
Amber Blindfold 2001 – Round 11 – Topalov, Veselin – 1/2-1/2 – Ljubojevic, Ljubomir – G37 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qb3 Bxd2+ 9. Bxd2 O-O 10. O-O d6
Amber-blindfold 10th 2001 – Round 5 – Ivanchuk, Vasyl – 1/2-1/2 – Anand, Viswanathan – G7 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qd1 O-O 9. O-O Bxd2 10. Qxd2 d6
Amber-rapid 16th 2007 – Round 8 – Vallejo Pons, Francisco – 0-1 – Anand, Viswanathan – G19 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. O-O cxd4 9. Nxd4 Bxg2 10. Kxg2 O-O
Dortmunder Schachtage 1999 – Round 7 – Topalov, Veselin – 0-1 – Adams, Michael – G25 1. Nf3 Nf6 2. c4 e6 3. d4 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qd1 Bxd2+ 9. Qxd2 O-O 10. O-O a5
FIDE-Wch k.o. 1997 – Round 5.2 – Van Wely, Loek – 1/2-1/2 – Adams, Michael – G175 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qb3 Bxd2+ 9. Bxd2 O-O 10. O-O d6
GMA 2003 – Round 5 – Radjabov, Teimour – 1-0 – Timman, Jan H – G27 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qd1 O-O 9. O-O Bxd2 10. Qxd2 d6
GMA 2003 – Round 6 – Ivanchuk, Vasyl – 1/2-1/2 – Anand, Viswanathan – G32 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. a3 Bxd2+ 7. Nxd2 Bb7 8. Nf3 d5 9. cxd5 Bxd5 10. Bg2 O-O
GMA 2004 – Round 8 – Timman, Jan H – 0-1 – Zhang, Zhong – G50 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qb3 Bxd2+ 9. Bxd2 O-O 10. O-O d6
Hamburg tv rapid 1982 – Round 4 – Karpov, Anatoly – 1-0 – Seirawan, Yasser – G12 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 c5 7. e4 cxd4 8. e5 Ng8 9. Bg2 Nc6 10. O-O Nge7
Interpolis 1980 – Round 1 – Hort, Vlastimil – 1/2-1/2 – Tal, Mikhail – G14 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. a3 Be4 8. Qa4 Bxd2+ 9. Bxd2 Nc6 10. Bc3 a6
Interpolis 1989 – Round 11 – Piket, Jeroen – 1/2-1/2 – Sax, Gyula – G39 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qa4 c5 7. dxc5 Bxc5 8. Bg2 Bb7 9. b4 Be7 10. Bb2 O-O
Interpolis 1989 – Round 9 – Agdestein, Simen – 1/2-1/2 – Sax, Gyula – G31 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. O-O cxd4 9. Nxd4 Bxg2 10. Kxg2 O-O
Interpolis 1993 – Round 3 – Jussupow, Artur – 1-0 – Lutz, Christopher – G122 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 b5 7. c5 Bb7 8. Bg2 Be4 9. Qb3 Nc6 10. O-O Bxd2
Olympiad 2002 – Round 4 – Gyimesi, Zoltan – 1/2-1/2 – Maharramzade, Javad – G110 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qb3 Bxd2+ 9. Bxd2 O-O 10. O-O d6
PCA Qualifiers 1993 – Round 7 – Ehlvest, Jaan – 1-0 – Korchnoi, Viktor – G127 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 O-O 7. Bg2 d5 8. O-O Bxd2 9. Nxd2 Nc6 10. e3 Qe7
Phillips&Drew 1982 – Round ? – Seirawan, Yasser – 1/2-1/2 – Timman, Jan H – G49 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qa4 c5 7. a3 Bxd2+ 8. Bxd2 cxd4 9. Bg2 Bb7 10. O-O Bc6
Rotterdam tt 1988 – Round 1 – Korchnoi, Viktor – 1/2-1/2 – Sax, Gyula – G8 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. O-O cxd4 9. Nxd4 Bxg2 10. Kxg2 O-O
Tal Memorial Blitz 2008 – Round 30 – Ivanchuk, Vasyl – 1-0 – Carlsen, Magnus – G249 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. dxc5 Bxc5 9. b3 Be7 10. Bb2 d6
TCh-RUS 2008 – Round 6 – Tregubov, Pavel V. – 1/2-1/2 – Eljanov, Pavel – G154 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. dxc5 Bxc5 9. O-O O-O 10. a3 a5
Turin ol (Men) 37th 2006 – Round 2 – Bluvshtein, Mark – 1/2-1/2 – Gustafsson, Jan – G25 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. a3 Bxd2+ 9. Qxd2 cxd4 10. Qxd4 O-O
World Blitz 2007 – Round 25 – Mamedyarov, Shakhriyar – 1-0 – Adams, Michael – G241 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. g3 Ba6 6. Qc2 Bb7 7. Bg2 Be4 8. Qd1 O-O 9. O-O Bxd2 10. Qxd2 d6
World Cup 1988 – Round 1 – Hjartarson, Johann – 1/2-1/2 – Sax, Gyula – G30 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. dxc5 Bxc5 9. O-O Be7 10. b3 d6
World Cup 1989 – Round 1 – Timman, Jan H – 1-0 – Salov, Valery – G28 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 Be4 8. Qb3 Bxd2+ 9. Bxd2 d6 10. O-O Nbd7
World Cup 1989 – Round 1 – Vaganian, Rafael A – 1/2-1/2 – Sax, Gyula – G13 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. dxc5 Bxc5 9. O-O Be7 10. e4 d6
XXIV SuperGM 2007 – Round 14 – Ivanchuk, Vasyl – 1/2-1/2 – Anand, Viswanathan – G48 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qc2 Bb7 7. Bg2 c5 8. dxc5 Bxc5 9. b3 Nc6 10. O-O Be7

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