E49g — Nimzo-Indian: Botvinnik, 7…c5 8.cxd5 exd5 9.Ne2

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.a3 Bxc3+ 7.bxc3 c5 8.cxd5 exd5 9.Ne2 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte f4.

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), la case forte f4, un avant-poste en f4, un fou actif en d3, la paire de fous et la colonne semi-ouverte b.

Côté adverse. Le fou enfermé en c8 et une pièce en prise (le pion en c5).

En contrepartie. Le roi n'est pas encore à l'abri, plusieurs pièces dorment encore (le fou c1 et les tours a1 et h1) et le pion isolé a3.

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Bd2 (Développer Bc1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), les cases fortes e4 et g4, un avant-poste en e4 et la colonne semi-ouverte e.

Côté adverse. Le pion isolé a3, le fou enfermé en c1 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Nbd7 (Développer Nb8) ; ...c4 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	● a3	—
Arriérés	—	—
Chaînes	● f2→e3, c3→d4, e3→d4	—
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0)	● e4 (2v1), ● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (3v1), ● e5 (1v0)	● d5 (2v0), ● e4 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bd3	● Bd3 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	Non
Non développées	3 (● c1, ● a1, ● h1)	3 (● b8, ● 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	fermé
Ruptures	● c3-c4, ● e3-e4	● …c5-c4

Partie
1936 Bad Nauheim – Round 9 – Stahlberg, Gideon – 0-1 – Keres, Paul – G38 1. d4 e6 2. c4 Bb4+ 3. Nc3 c5 4. e3 Nf6 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1939 Buenos Aires ol prel-B – Round 2 – Castillo Larenas, Mariano – 1/2-1/2 – Eliskases, Erich – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1941 Mar del Plata – Round 8 – Stahlberg, Gideon – 1-0 – Bolbochan, J. – G66 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 c4 10. Bc2 Nc6
1946 ENG-URS radio – Round 1 – Botvinnik, Mikhail – 1-0 – Alexander Ronald Cheng – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. a4 Ba6
1946 ENG-URS radio – Round 1 – Lilienthal, Andor – 1-0 – Wood, Beau – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 Qa5 10. O-O cxd4
1946 Groningen – Round 11 – Euwe, Max – 1-0 – Denker, Arnold S – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. a4 Ba6
1946 JUG Ch – Round 17 – Bozic, Aleksandar – 1-0 – Simonovic, Borko – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 c4 10. Bc2 Bg4
1946 Moscow USSR-USA – Round 1 – Lilienthal, Andor – 1/2-1/2 – Dake, Arthur William – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d5 7. cxd5 exd5 8. Bd3 c5 9. Ne2 Nbd7 10. a4 Re8
1946 New York ch-USA – Round 1 – Kashdan, Isaac – 1-0 – Steiner, Heinrich Jun. – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 Nc6 10. O-O Re8
1946 New York ch-USA – Round 1 – Reshevsky, Samuel – 1-0 – Steiner, Heinrich Jun. – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 c5 8. cxd5 exd5 9. Ne2 Nc6 10. f3 Re8
1946 Treybal Memorial – Round 7 – Sajtar, Jaroslav – 1-0 – Kottnauer, Cenek – G38 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. a4 Ba6
1946 USA Ch New York, NY USA – Round 1 – Denker, Arnold S – 1-0 – Kowalski, Stefan – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. cxd5 exd5 7. e3 O-O 8. Bd3 c5 9. Ne2 Nbd7 10. O-O b6
1947 Vienna SCHLECHTER-mem – Round 5 – Kottnauer, Cenek – 1/2-1/2 – Gruenfeld, Ernst – G11 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1948 Bad Nauheim – Round 1 – Roehrich, Erwin – 0-1 – Rellstab, Ludwig – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. e3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 cxd4 10. cxd4 Nc6
1948 Budapest – Round 2 – Gligorić, Svetozar – 1-0 – Benko, Pal – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1948 Karlovy Vary – Round 16 – Pirc, Vasja – 1-0 – Zita, Filip – G151 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 Nc6 10. O-O Qd6
1948 Moskou ch-URS – Round 11 – Kotov Lundqvist, Alex – 1/2-1/2 – Furman, Slavomir – G97 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1948 Moskou ch-URS – Round 19 – Ragozin, Viacheslav – 1/2-1/2 – Taimanov, Mark E – G158 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1949 Budapest-Moscow – Round 11 – Lilienthal, Andor – 1/2-1/2 – Benko, Pal – G81 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1949 Budapest-Moscow – Round 2 – Kotov Lundqvist, Alex – 1/2-1/2 – Benko, Pal – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1949 Moscow Ch – Round 1 – Lilienthal, Andor – 1/2-1/2 – Abramov, Lev – G3 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. e3 Nf6 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 Nc6 10. O-O c4
1949 Moskou ch-URS – Round 1 – Furman, Slavomir – 1-0 – Lilienthal, Andor – G60 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1950 Schiavno Zdroj – Round 1 – Szabo, Ladislav – 1-0 – Pytlakowski, Andrzej – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1950 URS Ch sf – Round ? – Moiseev, Oleg – 1-0 – Poliak, Abram – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 Qc7 10. O-O b6
1951 DDR Ch – Round 13 – Schlieder, Rolf – 0-1 – Ruppe, Otto – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Ne2 d5 7. cxd5 exd5 8. a3 Bxc3+ 9. bxc3 b6 10. O-O Bb7
1952 Budapest – Round 14 – Petrosian, Tigran A. – 1-0 – Troianescu, Octav – G125 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 Re8 10. O-O Nc6
1952 Helsinki olm – Round 1 – Aleman Dovo, Miguel – 0-1 – Enevoldsen, Jens – G72 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 d5 8. cxd5 exd5 9. Ne2 Nc6 10. O-O Re8
1952 Hollywood – Round 5 – Joyner, Lionel – 1-0 – Kashdan, Isaac – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Ne2 d5 7. cxd5 exd5 8. a3 Bxc3+ 9. bxc3 Re8 10. O-O Nc6
1952 Miedzyzdroje – Round 17 – Gawlikowski, Stanislaw – 1-0 – Koch, Berthold – G106 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 c5 7. Bd3 d5 8. cxd5 exd5 9. Ne2 Nc6 10. O-O c4
1952 POL-ch10 – Round 1 – Witkowski, Stefan – 0-1 – Pytlakowski, Andrzej – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1952 Saltsjobaden Interzonal – Round 20 – Averbakh, Yuri L – 1-0 – Golombek, Harry – G183 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1952 Saltsjobaden Interzonal – Round 7 – Kotov Lundqvist, Alex – 1-0 – Unzicker, Wolfgang – G60 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6
1952 URS Ch sf – Round ? – Kots, Yuri I – 0-1 – Sopkov – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Ne2 c5 7. cxd5 exd5 8. a3 Bxc3+ 9. bxc3 Bg4 10. f3 Bh5
1953 Hollywood Invitational – Round ? – Spiller, Arthur R – 0-1 – Kashdan, Isaac – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 d5 8. cxd5 exd5 9. Ne2 Nc6 10. O-O Re8
1953 Venice – Round ? – Van Scheltinga, Theo – 1/2-1/2 – Szabados, Eugenio – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 c4 10. Bc2 Nc6
1953 Wch-jr prelim – Round 8 – Olafsson, Fridrik – 1-0 – Keller, Dieter – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6
1954 Olympiad prel IV – Round 1 – De Greif, Boris – 0-1 – Kluger, Gyula – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1954 Prague zt Prague CZE – Round 6 – Balanel, Ion – 1-0 – Palmason, Gudmundur – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 Re8 10. f3 b6
1954 Stockholm – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Goode, Royal – G1 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Nc6
1955 Hamburg – Round 2 – Darga, Klaus – 1-0 – Pfeiffer, Gerhard – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1956 Moscow olm fin-A – Round 6 – Jezek, Jaroslav – 1-0 – Oren, Menachem – G93 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 b6 10. O-O Ba6
1956 Moscow olm fin-B – Round 6 – Johannessen, Simon T – 1-0 – Gislason, Sigurdur – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 c4 10. Bc2 Nc6
1957 POL Ch 15th – Round 3 – Szukszta, Janus – 1/2-1/2 – Gabrys, Zygmunt – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 Re8 10. O-O c4
1960 BRA-ch27 – Round 11 – Camara Ronald – 1-0 – De Souza Mendes, Joao – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 Nc6 10. O-O Re8
1960 Leipzig olm prel – Round 3 – Toran Albero, Roman – 1-0 – O'Hare, Eugene – G85 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 Bd7 10. O-O Bc6
1961 CSR Ch – Round 12 – Trapl, Jindrich – 1-0 – Florian, Jaromir – G114 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 d5 8. cxd5 exd5 9. Ne2 Qc7 10. f3 Re8
1961 ROM Ch – Round 18 – Mititelu, Gheorghe – 1/2-1/2 – Partos, Charles – G114 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 Nc6 10. O-O b6
1962 Varna olm – Round 8 – Minev, Nikolay N – 1-0 – Abdel Mohsen Ammar, Mohamed – G346 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 Nc6 10. O-O c4
1964 BRA Ch – Round 11 – Camara, Helder – 1-0 – De Freitas, Marcio Elisio – G39 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1966 Belgrade – Round 1 – Rajkovic, Dusan – 1-0 – Barcza, Gedeon – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6
1966 Hastings6667 – Round 6 – Botvinnik, Mikhail – 1-0 – Kurajica, Bojan – G27 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 b6 10. O-O cxd4
1966 La Habana olm fin-C – Round 7 – Yepez, Olavo – 1/2-1/2 – Alvarez del Monte, Jose – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1967 Buenos Aires VC Ch – Round 4 – Riveiro, Jorge – 1/2-1/2 – Morgado, Juan Sebastian – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Nc6
1967 HUN Ch Budapest HUN – Round 2 – Toth, Bela – 0-1 – Csom, Istvan – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. a3 Bxc3+ 7. bxc3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1968 Budapest – Round ? – Toth, Bela – 1-0 – Kovacs, MG. – G86 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. e3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 b6 10. O-O Ba6
1968 Budapest – Round 1 – Toth, Bela – 1-0 – Kovacs, Gabor – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. e3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 b6 10. O-O Ba6
1968 Hungary – Round 10 – Szabo, Ladislav – 1-0 – Barcza, Gedeon – G25 1. d4 e6 2. c4 Bb4+ 3. Nc3 c5 4. a3 Bxc3+ 5. bxc3 d5 6. e3 Nf6 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6
1969 Sarajevo – Round 10 – Gligorić, Svetozar – 1/2-1/2 – Damjanovic, Mato – G69 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 b6 10. O-O Ba6
1970 Vinkovci – Round 11 – Tomic, Dragoslav – 0-1 – Szabo, Laszlo – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1970 Vinkovci – Round 11 – Tomic, Maja – 0-1 – Szabo, Laszlo – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
1975 URS Team Ch – Round 3 – Begun, Sergei M – 1-0 – Ballyev – G126 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 c4 10. Bb1 Nc6
42. Olympiad 2016 – Round 10.1 – Shankland, Sam – 1-0 – Sanikidze, Tornike – G673 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Nf6 6. e3 c5 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6
Eurotel Trophy 2002 – Round 1.1 – Khalifman, Alexander – 1-0 – Bologan, Victor – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
FIDE World Cup 2019 – Round 1.3 – Le, Quang Liem – 1-0 – Aleksandrov, Aleksej – G131 1. c4 e6 2. Nc3 d5 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 Nf6 7. cxd5 exd5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6
Niksic 1983 – Round 6 – Kasparov, Garry – 1-0 – Ivanovic, Bozidar – G39 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 O-O 7. Bd3 d5 8. cxd5 exd5 9. Ne2 b6 10. f3 Re8
World Blitz 2017 – Round 1.13 – Korobov, Anton – 1-0 – Alekseev, Evgeny – G5 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 Nf6 7. Bd3 O-O 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6
World Blitz 2018 – Round 3.74 – Hakobyan, Aram – 0-1 – Inarkiev, Ernesto – G193 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. e3 Nf6 5. a3 Bxc3+ 6. bxc3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 b6 10. O-O Ba6
World Blitz 2019 – Round 4.12 – Matlakov, Maxim – 1-0 – Mozharov, Mikhail – G235 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Nf6 6. cxd5 exd5 7. e3 c5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6
World Blitz 2021 – Round 3.26 – Tologon tegin, Semetei – 0-1 – Kravtsiv, Martyn – G152 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. e3 Nf6 5. a3 Bxc3+ 6. bxc3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 b6 10. O-O Ba6
XXIII SuperGM 2006 – Round 3 – Bacrot, Etienne – 1/2-1/2 – Vallejo Pons, Francisco – G9 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Nf6 6. e3 O-O 7. cxd5 exd5 8. Bd3 c5 9. Ne2 Bg4 10. f3 Bh5

E49g — Botvinnik

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.a3 Bxc3+ 7.bxc3 c5 8.cxd5 exd5 9.Ne2

Eval: [+0.26]

Les coups candidats

9…b6 — 60.6% (654 parties)

Ambassadeurs : Lombart, Philippe (7x), Batsiashvili, Nino (6x), Aleksandrov Ivanchev, Aleksandar (5x), Szabo, Ladislav (4x), Kotov Lundqvist, Alex (3x), Benko, Pal (3x), Botvinnik, Mikhail (3x), Lilienthal, Andor (3x)

9…Nc6 — 20.9% (226 parties)

Ambassadeurs : Reshevsky, Samuel (2x), Steiner, Heinrich Jun. (2x), Kashdan, Isaac (2x), Minev, Nikolay N (2x), Langhans, Heiko (2x), Urkedal, Frode Olav Olsen (2x), Takeda, Lucas Koji (2x), Vitenberg, Noam Aviv (2x)

9…c4 — 6.9% (75 parties)

Ambassadeurs : Schmidt, Ulrich (2x), Nuernberg, Friedrich (1x), Stein, Georg (1x), Bozic, Aleksandar (1x), Simonovic, Borko (1x), Stahlberg, Gideon (1x), Bolbochan, J. (1x), Pulieri (1x)

9…Re8 — 5.7% (62 parties)

Ambassadeurs : Cvitan, Ognjen (2x), Gerzhoy, Leonid (2x), Koblencs, Alexander (1x), Arulaid, Alexander (1x), Bondarevsky, Igor (1x), Zhukhovitsky, Samuel (1x), Balanel, Ion (1x), Palmason, Gudmundur (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…b6	9…Nc6	9…c4	9…Re8
<1800	6	67%	—	33%	—
1800-2200	215	47%	29%	9%	7%
2200-2600	641	66%	19%	5%	5%
2600+	44	84%	5%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…b6	9…Nc6	9…c4	9…Re8
1930s	3	100%	—	—	—
1940s	28	50%	18%	11%	7%
1950s	46	50%	24%	9%	11%
1960s	31	48%	29%	10%	3%
1970s	29	48%	21%	10%	10%
1980s	48	62%	25%	4%	8%
1990s	108	55%	24%	13%	5%
2000s	175	58%	22%	7%	6%
2010s	373	64%	18%	6%	6%
2020s	239	66%	21%	4%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…b6	64%	66%	▲ +2.6%
9…Nc6	18%	21%	▲ +2.4%
9…c4	6%	4%	▼ -2.3%
9…Re8	6%	4%	▼ -1.7%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 3 parties
Kasparov, Garry — 2 parties
Euwe, Max — 1 partie
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

9…b6 — 60.6% (654 parties)

1936 — Stahlberg, Gideon vs Keres, Paul — 0-1 — Bad Nauheim
1938 — Botvinnik, Mikhail vs Capablanca, Jose — 1-0 — Amsterdam NED
1939 — Castillo Larenas, Mariano vs Eliskases, Erich — 1/2-1/2 — Buenos Aires ol pr-B
1940 — Fine, Reuben vs Steiner, Herman — 1-0 — Dallas, TX USA
1941 — Reshevsky, Samuel vs Fine, Reuben — 1/2-1/2 — New York, NY USA

9…Nc6 — 20.9% (226 parties)

1946 — Reshevsky, Samuel vs Steiner, Heinrich Jun. — 1-0 — New York, NY USA
1946 — Kashdan, Isaac vs Steiner, Heinrich Jun. — 1-0 — New York, NY USA
1948 — Pirc, Vasja vs Zita, Filip — 1-0 — Karlovy Vary
1949 — Lilienthal, Andor vs Abramov, Lev — 1/2-1/2 — Moscow RUS
1949 — Kramer, Hanspeter vs De Lange, Abigaelle — 1-0 — Baarn NED

9…c4 — 6.9% (75 parties)

1941 — Stahlberg, Gideon vs Bolbochan, J. — 1-0 — Mar del Plata ARG
1946 — Bozic, Aleksandar vs Simonovic, Borko — 1-0 — Zagreb CRO
1948 — Nuernberg, Friedrich vs Stein, Georg — 1-0 — Essen GER
1950 — Parliaros, Dimitrios vs Zografakis, Aristidis — 1-0 — Athens GRE
1953 — Van Scheltinga, Theo vs Szabados, Eugenio — 1/2-1/2 — Venice ITA

9…Re8 — 5.7% (62 parties)

1946 — Koblencs, Alexander vs Arulaid, Alexander — 1-0 — Baltic ch
1946 — Bondarevsky, Igor vs Zhukhovitsky, Samuel — 1-0 — ch sf
1952 — Petrosian, Tigran A. vs Troianescu, Octav — 1-0 — Budapest HUN
1952 — Joyner, Lionel vs Kashdan, Isaac — 1-0 — Hollywood
1954 — Balanel, Ion vs Palmason, Gudmundur — 1-0 — Prague zt Prague CZE

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