E39g — Nimzo-Indian: Classical, Pirc, 6.Nf3 Na6 7.a3

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Nf3 Na6 7.a3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bg5 (Fou actif (mobilité 7), Développer c1 — 1 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bxc3+ (Fou actif (mobilité 7) — 97 % des parties) ; ...Bxc5 (Fou actif (mobilité 8) — 3 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c4, ● c5	—
Pions isolés	—	—
Arriérés	—	● d7
Chaînes	● b2→a3	● d7→e6, f7→e6
Passés	—	—
Majorité	● aile dame 4v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v1), ● b5 (2v0), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0), ● e4 (2v1), ● e5 (1v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 0)
Bb4		● Bb4 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (● c1, ● f1, ● a1, ● h1)	2 (● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● c5-c6	● …d7-d6, ● …d7-d5

Partie
1934 Leningrad ch-URS – Round 1 – Belavenets, Sergey – 1/2-1/2 – Lisitsin, Georgy – G60 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 d5 10. cxd5 Nce4
1935 Margate – Round 1 – Capablanca, Jose – 1/2-1/2 – Fairhurst, William – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. Nf3 O-O 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Nd2 d5 10. cxd5 Qxd5
1938 Noordwijk – Round 5 – Schmidt, Pascal – 0-1 – Keres, Paul – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Bf4 d5 10. cxd5 Nce4
1946 Mar del Plata – Round 9 – Acosta Garcia, Rafael Isaac – 1/2-1/2 – Hounie Fleurquin, Carlos – G86 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. Nf3 O-O 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 Nfe4 10. Qc2 a5
1946 Treybal Memorial – Round 1 – Najdorf, Miguel – 1-0 – Pachman, Ludek – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. g3 b6 10. Bg2 Ba6
1947 Chigorin Memorial – Round 1 – Gligorić, Svetozar – 1-0 – Plater, Kazimierz – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 b6 10. Nd2 Bb7
1948 Moskou ch-URS – Round 2 – Kholmov, Ratmir D – 1/2-1/2 – Bondarevsky, Igor – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 a5 10. Be2 b6
1949 Baarn – Round 2 – Barendregt, Johan – 1/2-1/2 – Kramer, Haije – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Bg5 Nce4 10. Bxf6 Nxf6
1950 Amsterdam – Round 1 – Golombek, Harry – 0-1 – Pirc, Vasja – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 a5
1950 Amsterdam – Round 15 – Golombek, Harry – 0-1 – Pirc, Vasja – G146 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 a5
1950 Wch women – Round ? – Keller-Hermann, Edith – 1-0 – Heemskerk, Fenny – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 a5 10. b3 d5
1950 Wch women – Round ? – Keller-Hermann, Edith – 1/2-1/2 – Rudenko, Ludmila – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc5 8. b4 Be7 9. Bb2 b6 10. e3 Bb7
1951 Bad Pyrmont zt – Round 14 – Bogoljubow, Efim – 0-1 – Gligorić, Svetozar – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Nd2 a5 10. f3 a4
1951 Bucharest GMT 2nd – Round 8 – Makarczyk, Kazimierz – 0-1 – Troianescu, Octav – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. g3 b6 10. Bg2 Ba6
1951 It Dortmund GER – Round 1 – Bogoljubow, Efim – 1/2-1/2 – O'Kelly de Galway, Alberic – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Nd2 b6 10. b4 Nce4
1951 Marianske Lazne zt – Round 1 – Fred, Aatos – 0-1 – Lokvenc, Josef – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 a5
1957 Mar del Plata – Round 11 – Najdorf, Miguel – 1-0 – Alonso-Lej De Las Casas, Fernando – G100 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Bf4 d5 10. e3 b6
1958 Argentina – Round 11 – Garcia Rodriguez, Raimundo – 0-1 – Redolfi, Argentino Rodolfo – G86 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Bf4 Nce4 10. Qc2 d6
1958 Munich olm prel – Round 3 – Kirby, Kenneth – 0-1 – Darga, Klaus – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 b6 10. Be2 Ba6
1960 Aalborg – Round 11 – Blom, Kaj – 1/2-1/2 – Enevoldsen, Jens – G55 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Bg5 Nce4 10. Bxf6 Nxf6
1961 Stockholm – Round 26 – Kotov, Alexander A – 1/2-1/2 – Keres, Paul Petrovich – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 b6 10. Be2 Bb7
1961 Wch-jr final I – Round 8 – Thomson, Derec – 0-1 – Zuidema, Coen – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qc2 a5
1964 EU Team Ch sf – Round 6.3 – Kolarov, Atanas Stefanov – 1/2-1/2 – Liebert, Heinz – G87 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 d6
1964 Pecs – Round 4 – Honfi, Karoly – 0-1 – Gipslis, Aivars – G20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qc2 a5
1965 Marianske Lazne – Round 14 – Shamkovich, Leonid – 1/2-1/2 – Keres, Paul – G64 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 b6 10. Be2 Bb7
1966 Budapest Ch – Round 3 – Kurtesch Laszlo – 0-1 – Flesch, Janos – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Nd2 a5 10. f3 b6
1966 Hungary – Round 1 – Kurtesch, L. – 0-1 – Flesch, János – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. Nd2 a5 10. f3 b6
1967 Budapest Bajnogsag 8th – Round 13 – Portisch, Ferenc – 1/2-1/2 – Eperjesi, Laszlo Dr. – G79 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 d6
1967 Liberation Belgrade YUG – Round 8 – Forintos, Gyozo V – 1/2-1/2 – Parma, Bruno – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 d6
Levitov Chess Week Rapid 2023 – Round 6.5 – Mamedyarov, Shakhriyar – 0-1 – Nepomniachtchi, Ian – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. b4 Nce4 10. Qd4 d6
Olympiad 2002 – Round 5 – Svetushkin, Dmitry – 0-1 – Polgar, Judit – G139 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. Nf3 c5 6. dxc5 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 a5 10. Be2 a4
World Blitz 2007 – Round 32 – Carlsen, Magnus – 1/2-1/2 – Ivanchuk, Vasyl – G309 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Na6 7. a3 Bxc3+ 8. Qxc3 Nxc5 9. e3 b6 10. Be2 d5

E39g — Classical, Pirc (1934)

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Nf3 Na6 7.a3

Les coups candidats

7…Bxc3+ — 97.1% (567 parties)

Ambassadeurs : Kaposztas, Miklos (5x), Koskela, Niina (4x), Kasznia, Ireneusz (4x), Gipslis, Aivars (3x), Berkovich, Dmitry (3x), Dive, Russell John (3x), Horvath, Csaba (3x), Vasiljev, Jurij (3x)

7…Bxc5 — 2.7% (16 parties)

Ambassadeurs : Keller-Hermann, Edith (1x), Rudenko, Ludmila (1x), Sibarevic, Milenko (1x), Velimirovic, Dragoljub (1x), Varga, Peter (1x), Somlai, Laszlo (1x), Kahn, Evarth Dr. (1x), Kovacs, Janos (1x)

7…Qa5 — 0.2% (1 parties)

Ambassadeurs : Ranaldi, Lucas (1x), Subramanian, Aditya (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…Bxc3+	7…Bxc5	7…Qa5
<1800	18	100%	—	—
1800-2200	184	95%	5%	1%
2200-2600	284	98%	2%	—
2600+	10	100%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7…Bxc3+	7…Bxc5	7…Qa5
1950s	21	95%	5%	—
1960s	15	100%	—	—
1970s	15	100%	—	—
1980s	32	97%	3%	—
1990s	117	96%	4%	—
2000s	180	98%	2%	—
2010s	161	96%	3%	1%
2020s	43	98%	2%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…Bxc3+	96%	98%	▲ +1.4%
7…Bxc5	3%	2%	▼ -0.8%
7…Qa5	1%	0%	▼ -0.6%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

7…Bxc3+ — 97.1% (567 parties)

1950 — Keller-Hermann, Edith vs Heemskerk, Fenny — 1-0 — Moscow RUS
1950 — Golombek, Harry vs Pirc, Vasja — 0-1 — Amsterdam NED
1950 — Giustolisi, Alberto vs Eken, Max — 0-1 — Lucerne SUI
1950 — Golombek, Harry vs Pirc, Vasja — 0-1 — Amsterdam NED
1951 — Schroeder, Raik vs Acoltzi Ruiz, Mariana — 0-1 — Mar del Plata ARG

7…Bxc5 — 2.7% (16 parties)

1950 — Keller-Hermann, Edith vs Rudenko, Ludmila — 1/2-1/2 — Moscow RUS
1983 — Sibarevic, Milenko vs Velimirovic, Dragoljub — 0-1 — Banja Luka BIH
1990 — Maric, Alisa vs Ankerst, Mihael — 1-0 — Cetinje
1991 — Varga, Peter vs Somlai, Laszlo — 1/2-1/2 — Borsodtavho
1991 — Kahn, Evarth Dr. vs Kovacs, Janos — 1-0 — HUN

7…Qa5 — 0.2% (1 parties)

2015 — Ranaldi, Lucas vs Subramanian, Aditya — 1-0 — Helsingor DEN

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