A32l — English: Symmetrical, Two Knights, 5.g3 Bb4+

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.g3 Bb4+ * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Bd2 (Fou actif (mobilité 7), Développer c1 — 69 % des parties) ; Nc3 (Développer b1 — 28 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Qb6 (Prépare O-O-O — 35 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 14 % des parties) ; ...Be7 (Fou actif (mobilité 5) — 13 % des parties) ; ...Bc5 (Fou actif (mobilité 7) — 13 % des parties) ; ...Ne4 (Cavalier centralisé en e4 — 12 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● d7→e6, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● b5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bb4		● Bb4 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● c1, ● f1, ● a1, ● h1)	4 (● b8, ● 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	mobile
Ruptures	—	● …d7-d5

Partie
? 2000 – Round ? – Ricardi, Pablo – 1/2-1/2 – Gulko, Boris – G35 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Qb6 7. Bxb4 Qxb4+ 8. Qd2 Qxc4 9. Bg2 Nc6 10. Nb3 d5
19. Amber Blindfold 2010 – Round 1 – Dominguez Perez, Leinier – 0-1 – Gashimov, Vugar – G2 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Be7 7. Bg2 Nc6 8. Bf4 O-O 9. Nc3 e5 10. Nxc6 bxc6
1928 Mar del Plata – Round 2 – Pulcherio, Cauby – 1-0 – Castillo Larenas, Mariano – G9 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. g3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Bc5 7. Nb3 Be7 8. Bg2 Nc6 9. e4 O-O 10. Qe2 d6
1931 New York – Round 6 – Santasiere, Anthony – 0-1 – Lasker, Emanuel – G47 1. Nf3 Nf6 2. d4 e6 3. g3 c5 4. c4 cxd4 5. Nxd4 Bb4+ 6. Nd2 Qb6 7. Nf3 Ne4 8. e3 Bxd2+ 9. Nxd2 Nxd2 10. Bxd2 Qc6
1958 Argentina – Round 9 – Espinosa Escala, Rafael Mario – 1/2-1/2 – Redolfi, Argentino Rodolfo – G71 1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. c4 cxd4 5. Nxd4 Bb4+ 6. Bd2 Qb6 7. e3 Bc5 8. Nb3 Be7 9. Bg2 Nc6 10. O-O d5
1958 Munich olm fin-B – Round 8 – Alvarez Martin, Pedro – 1/2-1/2 – Kraidman, Yair – G76 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Bxd2+ 7. Nxd2 O-O 8. Bg2 Nc6 9. N2b3 b6 10. O-O Bb7
1959 Tbilisi ch-URS – Round 6 – Taimanov, Mark E – 1/2-1/2 – Bronstein, David I – G41 1. d4 e6 2. c4 c5 3. Nf3 Nf6 4. g3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Bxd2+ 7. Nxd2 Qb6 8. N2b3 Qb4+ 9. Qd2 Qxd2+ 10. Kxd2 Nc6
20. European Teams 2015 – Round 8.13 – Papaioannou, Ioannis CS – 1/2-1/2 – Kveinys, Aloyzas – G329 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Be7 7. Bg2 O-O 8. O-O Nc6 9. Bc3 d5 10. Nd2 Bd7
4. M-Tel Masters 2008 – Round 1 – Aronian, Levon – 0-1 – Topalov, Veselin – G1 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Be7 7. Bg2 Nc6 8. Bc3 O-O 9. O-O d5 10. Nd2 Bd7
41. Olympiad Open 2014 – Round 2.6 – Leko, Peter – 1/2-1/2 – Iturrizaga Bonelli, Eduardo – G157 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Bxd2+ 7. Nxd2 Nc6 8. N2b3 Qb6 9. e3 O-O 10. Be2 d5
Amber-blindfold 16th 2007 – Round 2 – Aronian, Levon – 1/2-1/2 – Leko, Peter – G3 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Bc5 7. Nb3 Be7 8. Bg2 Nc6 9. Nc3 b6 10. Bf4 O-O
Azerbaijanian vs World Rapid 2009 – Round 2 – Anand, Viswanathan – 1-0 – Gashimov, Vugar – G2 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Bc5 7. Nb3 Be7 8. Bg2 Nc6 9. O-O b6 10. Nc3 Ba6
Dortmund 1998 – Round 6 – Beliavsky, Alexander G – 0-1 – Adams, Michael – G21 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Qb6 7. Bxb4 Qxb4+ 8. Nc3 O-O 9. Qb3 Qc5 10. Rd1 a6
FIDE-Wch k.o. 1999 – Round 3.1 – Korchnoi, Viktor – 1/2-1/2 – Kramnik, Vladimir – G75 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. g3 Bb4+ 6. Bd2 Be7 7. Bg2 Nc6 8. Bc3 O-O 9. O-O d5 10. cxd5 Nxd5
Grand Slam Final 2008 – Round 1 – Aronian, Levon – 0-1 – Carlsen, Magnus – G1 1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. g3 Bb4+ 6. Nd2 Nc6 7. Nc2 Be7 8. Bg2 O-O 9. O-O Rb8 10. Ne4 b5
Investbanka 1997 – Round 3 – Beliavsky, Alexander G – 1/2-1/2 – Gelfand, Boris – G7 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Be7 7. Bg2 Nc6 8. Bc3 O-O 9. O-O d5 10. Nd2 Qb6
Sparkassen GM 2009 – Round 2 – Leko, Peter – 1/2-1/2 – Carlsen, Magnus – G6 1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 e6 5. g3 Bb4+ 6. Bd2 Be7 7. Bg2 Nc6 8. Bf4 O-O 9. O-O Qb6 10. Nb5 a6
World Blitz 2015 – Round 7.36 – Adhiban, B. – 1/2-1/2 – Akopian, Vladimir – G430 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Qb6 7. Bg2 O-O 8. O-O Nc6 9. Nb3 d5 10. cxd5 exd5
World Blitz 2018 – Round 8.41 – Paravyan, David – 1-0 – Abdusattorov, Nodirbek – G486 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Be7 7. Bg2 Nc6 8. Nf3 O-O 9. O-O b6 10. Nc3 Bb7
XXIV SuperGM 2007 – Round 11 – Aronian, Levon – 1/2-1/2 – Leko, Peter – G37 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Bb4+ 6. Bd2 Bc5 7. Nb3 Be7 8. Bg2 Nc6 9. Nc3 b6 10. Bf4 O-O

A32l — Symmetrical, Two Knights (1928)

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.g3 Bb4+

Les coups candidats

6.Bd2 — 69.1% (617 parties)

Ambassadeurs : Rashkovsky, Nukhim N (11x), Hausner, Ivan (4x), Mikhalchishin, Adrian (4x), Gavrikov, Viktor (4x), Aronian, Levon (4x), Leko, Peter (4x), Zilberstein, Valery I (3x), Schneider, Attila (3x)

6.Nc3 — 27.7% (247 parties) →

Ambassadeurs : Timman, Jan H (5x), Beliavsky, Alexander G (4x), Santos, Antonio P (4x), Sosonko, Gennadi (3x), Sabuk, Piotr (3x), Despotovic, Momcilo (2x), Ligterink, Gert (2x), Arbakov, Valentin (2x)

6.Nd2 — 3.2% (29 parties)

Ambassadeurs : Popov, Luben (1x), Bogdanov, Emil (1x), Quinteros, Miguel A. (1x), Markeluk, Sergio (1x), Remon, Adelquis (1x), Vilela De Acuna, Jose Luis (1x), Birnboin (1x), Varasdy, Imre (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Bd2	6.Nc3	6.Nd2
<1800	16	56%	38%	6%
1800-2200	224	73%	25%	2%
2200-2600	527	69%	27%	4%
2600+	52	62%	37%	2%

Évolution par décennie (% des parties)

Décennie	N parties	6.Bd2	6.Nc3	6.Nd2
1950s	4	100%	—	—
1960s	3	67%	—	33%
1970s	72	79%	18%	3%
1980s	122	63%	35%	2%
1990s	167	72%	26%	2%
2000s	244	65%	30%	5%
2010s	239	69%	27%	3%
2020s	42	79%	21%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Bd2	69%	79%	▲ +9.1%
6.Nc3	27%	21%	▼ -5.8%
6.Nd2	3%	0%	▼ -3.3%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 5 parties
Kramnik, Vladimir — 3 parties
Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Anand, Viswanathan — 1 partie

Parties historiques

6.Bd2 — 69.1% (617 parties)

1955 — Saidy, Anthony vs Rapaka Samuel Paul — 0-1 — Long Beach, CA USA
1958 — Weiss, Martin vs Kraidman, Yair — 1/2-1/2 — Munich GER
1958 — Espinosa , Libaski vs Redolfi, Javier — 1/2-1/2 — Argentina
1959 — Taimanov, Mark vs Bronstein, David I — 1/2-1/2 — Tbilisi ch-URS
1969 — Faibisovich, Vadim Z vs Vaganian, Irina — 1-0 — Voronezh RUS

6.Nc3 — 27.7% (247 parties)

1972 — Marszalek, Rafal vs Pytel, Krzysztof — 1/2-1/2 — Wroclaw POL
1972 — Gedevanishvili, Dmitry vs Romanishin, Oleg M — 0-1 — Moscow RUS
1975 — Santos, Antonio P vs Trevelyan, Clive — 1/2-1/2 — Groningen NED
1976 — Chekhov, Valery A vs Mikhalchishin, Adrian — 1-0 — Banja Luka BIH
1976 — Santos, Antonio P vs Trevelyan, Clive — 0-1 — Groningen NED

6.Nd2 — 3.2% (29 parties)

1963 — Popov, Luben vs Bogdanov, Emil — 1-0 — Sofia BUL
1979 — Quinteros, Miguel A. vs Markeluk, Sergio — 1-0 — Buenos Aires ARG
1979 — Birnboin vs Varasdy, Imre — 1-0 — Athens GRE
1980 — Remon, Adelquis vs Vilela De Acuna, Jose Luis — 1/2-1/2 — Bayamo
1989 — Samur, Arturo vs Amura, Claudia — 0-1 — Club Argentino

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