E94p — King’s Indian: 7.O-O Nbd7

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte b5….

Atouts. Les Blancs s'appuient sur les cases fortes b5, d5 et g5 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu au centre (rupture c7-c6).

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et e2.

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

Plans. ...c6 (Rupture) ; ...c5 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● d6→e5, c7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (3v1), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Enfermé (mob. 1)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● d4-d5	● …c7-c6, ● …c7-c5, ● …d6-d5

Partie
1924 Gyor – Round 1 – Steiner, Laszlo – 1/2-1/2 – Steiner, Endre – G28 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. b3 Qe7 10. Qc2 Rd8
1924 Moskou ch-URS – Round 6 – Selezniev, Alexey – 1/2-1/2 – Sozin, Veniamin – G20 1. d4 Nf6 2. Nf3 d6 3. c4 Nbd7 4. Nc3 e5 5. e4 g6 6. Be2 Bg7 7. O-O O-O 8. h3 b6 9. Be3 Bb7 10. Qc2 exd4
1928 Dortmund – Round 8 – Colle, Edgar – 1/2-1/2 – Bogoljubow, Efim – G10 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 8. ... dxe5 9. Qc2 c6 10. b3 Re8
1928 World Championship Amateur – Round 15 – Cheron, Andre – 1/2-1/2 – Euwe, Max – G44 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Re8
1929 Odessa ch-URS – Round 1 – Poliak, Abram – 1-0 – Nenarokov, Vladimir – G10 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. h3 exd4 9. Nxd4 Re8 10. Bf3 Ne5
1930 San Remo – Round 1 – Grau, Roberto G – 0-1 – Bogoljubow, Efim – G55 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 Re8 10. Rd1 c6
1933 Folkestone Olympiad 5th – Round 3.4 – Sigurdsson, Thrainn – 0-1 – Alexander, Conol Hugh – G31 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qc2 c6
1933 Western Chess Association – Round 13 – Stolcenberg, Leon – 0-1 – Fine, Reuben – G9 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. a3 Qe7 9. dxe5 dxe5 10. Qc2 c6
1934 GER Ch 2nd – Round 11 – Heinicke, Herbert – 1-0 – Engels, Ludwig – G22 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nbd7 8. h3 exd4 9. Nxd4 Nc5 10. Bf3 Re8
1934 Sitges – Round 5 – Gallego Llorens, Rafael – 0-1 – Koltanowski, George – G28 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. b3 Qe7
1935 Tatatovaros – Round 16 – Znosko-Borovsky, Eugene – 0-1 – Becker, Albert – G85 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. b3 Qe7
1936 Leningrad Leningrad RUS – Round 10 – Konstantinopolsky, Alexander – 1/2-1/2 – Chekhover, Vitaly – G7 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d6 5. e4 O-O 6. Be2 Nbd7 7. O-O e5 8. h3 exd4 9. Nxd4 Nc5 10. Bf3 Nfd7
1936 Olympiad (unofficial) – Round 10 – Tsvetkov, Alexandar K – 0-1 – Lokvenc, Josef – G81 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Bg5 h6 10. Bh4 c6
1938 Argentina – Round 4 – Fenoglio, Virgilio – 0-1 – Iliesco, Juan – G20 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 d6 5. e4 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Qe7
1938 Paris L'Echiquier – Round 14 – Anglares, Emille – 0-1 – Golmayo Torriente, Manuel – G37 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. a4 a5
1939 Amsterdam KNSB – Round 4 – Fontein, J. – 1/2-1/2 – Landau, Salo – G9 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Qc7
1939 Amsterdam VARA – Round 3 – Fontein, George – 0-1 – Flohr, Salo – G7 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Qe7
1939 Buenos Aires ol f-A – Round 6 – da Silva Rocha, Adhemar – 1-0 – Czerniak, Moshe – G111 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. h3 Re8 9. dxe5 dxe5 10. Be3 c6
1944 URS Ch sf Moscow RUS – Round 8 – Model, Abram – 0-1 – Veresov, Gavriil – G7 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. b3 Re8 10. Qc2 c6
1946 Groningen – Round 16 – Steiner, Heinrich Jun. – 1/2-1/2 – Christoffel, Martin – G71 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Qc7
1946 Maastricht – Round 2 – Wolthuis, Willem – 0-1 – Euwe, Max – G11 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 Nbd7 7. O-O e5 8. dxe5 dxe5 9. b3 c6 10. Qc2 Re8
1946 Maastricht – Round 9 – Soultanbeieff, Victor – 0-1 – Euwe, Max – G38 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. b3 exd4 9. Nxd4 Nc5 10. f3 a5
1946 Mar del Plata – Round 6 – Bauza, Lorenzo – 0-1 – Reinhardt, Enrique – G68 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. h3 Re8 9. d5 Nh5 10. g3 Nf8
1947 Kirchheim Teck – Round 1 – Kraus, Rudolf – 0-1 – Bohatirchuk, Fedor – G1 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 Nbd7 7. O-O e5 8. b3 Re8 9. d5 Nh5 10. g3 Nf8
1947 Yugoslavia Ch – Round 7 – Vidmar, Milan Jr – 1-0 – Bidev, Pavle – G35 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Be3 c6 10. Qc1 Re8
1948 Budapest – Round 13 – Tomovic, Vasilje – 0-1 – Benko, Pal – G73 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. h3 exd4 9. Nxd4 Nc5 10. Bf3 Re8
1949 Heidelberg – Round 8 – Schmidt, Pascal – 1/2-1/2 – Rossolimo, Nicolas – G25 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Be3 c6 10. Nd2 Qe7
1950 Amsterdam – Round 1 – Kramer, Hanspeter – 1/2-1/2 – Reshevsky, Samuel – G26 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. b3 Re8 9. d5 Nc5 10. Bg5 h6
1950 DDR Ch – Round 5 – Otto Arnold – 0-1 – Schlieder, Rolf – G12 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Re8
1950 Venice – Round 1 – Primavera, Giuseppe – 1-0 – Donner, Jan-Hein – G18 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. Rd1 Qe7
1952 Helsinki olm – Round 1 – Jost, Felix – 0-1 – Lange, Wilfried – G97 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 Nbd7 6. Be2 e5 7. O-O O-O 8. h3 c6 9. Be3 Qe7 10. d5 c5
1952 JUG Ch – Round 4 – Rabar, Braslav – 1/2-1/2 – Fuderer, Andrija – G24 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 e5 6. Nf3 O-O 7. O-O Nbd7 8. Rb1 a5 9. Re1 exd4 10. Nxd4 Nc5
1952 Saltsjobaden Interzonal – Round 11 – Stahlberg, Gideon – 1-0 – Barcza, Gedeon – G103 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nbd7 8. Rb1 c6 9. d5 cxd5 10. cxd5 Nc5
1953 Mar del Plata – Round 10 – Najdorf, Miguel – 1/2-1/2 – Bolbochan, J. – G110 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 e5 7. O-O Nbd7 8. Bg5 h6 9. Be3 c6 10. d5 cxd5
1953 Mar del Plata – Round 9 – Trifunovic, Petar – 1-0 – Rossetto, Hector – G99 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Bg5 h6 9. Be3 Ng4 10. Bc1 c6
1953 Wch U20 qual – Round 7 – Larsen, Bent Ravn – 0-1 – Olafsson, Fridrik – G26 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. d4 d6 6. Be2 e5 7. O-O Nbd7 8. b3 Re8 9. d5 Nc5 10. Qc2 a5
1954 Dyckhoff Memorial A 5456 – Round ? – Schmid, Lothar – 1-0 – Heemsoth, Hermann – G9 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. dxe5 dxe5 9. Be3 c6 10. Nd2 Re8
1954 Hollywood Open – Round 1 – Almgren, Sven – 0-1 – Rossolimo, Nicolas – G11 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Bg5 h6 9. Bh4 c6 10. d5 c5
1954 Mar del Plata/B.Aires zt it-17 – Round 5 – Rossetto, Hector – 1/2-1/2 – Najdorf, Miguel – G2 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 e5 6. Nf3 O-O 7. O-O Nbd7 8. Bg5 h6 9. Be3 Re8 10. d5 Ng4
1954 Mar del Plata/B.Aires zt it-17 – Round 9 – Sanguinetti Lopez, Jose Pablo – 1/2-1/2 – Panno, Oscar – G6 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nbd7 8. Bg5 h6 9. Be3 c6 10. dxe5 dxe5
1955 DDR Ch 06th – Round 16 – Raths, Arno – 0-1 – Schlieder, Rolf – G68 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Bg5 h6 10. Bxf6 Qxf6
1956 Danmarksmesterskabet – Round 4 – Norman Hansen, Holger – 0-1 – Pedersen, Svend – G9 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Bg5 c6 10. Qc2 h6
1956 Montevideo – Round 1 – Ader Hausman, Walter – 0-1 – Eliskases, Erich – G22 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Rb1 Re8 9. d5 Nc5 10. Nd2 a5
1957 Dublin zt – Round 6 – Schmid, Leo – 1/2-1/2 – Giustolisi, Alberto – G42 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. dxe5 dxe5 9. Be3 c6 10. Nd2 Ne8
1957 Reggio Emilia ch ITA – Round 2 – Napolitano, Mario – 1-0 – Palmiotto, Fiorentino – G8 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 Nbd7 6. Be2 e5 7. O-O O-O 8. dxe5 dxe5 9. Qc2 c6 10. b3 Qc7
1958 NLD Ch – Round 1 – Jonkman, Meinard – 0-1 – Van den Berg, Carel B – G1 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. b3 Re8 10. Qc2 c6
1958 Torneo de las Americas 1st – Round 14 – Ader Hausman, Walter – 1-0 – Davila, Edmundo – G71 1. c4 Nf6 2. Nc3 d6 3. d4 Nbd7 4. e4 e5 5. Nf3 g6 6. Be2 Bg7 7. O-O O-O 8. Rb1 exd4 9. Nxd4 Nc5 10. f3 a5
1958 YUG Ch 13th – Round 14 – Trifunovic, Petar – 1/2-1/2 – Ivkovic, Dusan – G77 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 Nbd7 7. O-O e5 8. Bg5 h6 9. Bh4 Re8 10. d5 g5
1959 Kragujevac ch14-YUG – Round 1 – Ivkovic, Dusan – 0-1 – Matanovic, Aleksandar – G93 1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. h3 Qe7
1959 Lima – Round 2 – Rebaza Rueda, Sebastian Rodrigo – 0-1 – Ivkov, Borislav – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nbd7 8. h3 exd4 9. Nxd4 Re8 10. Bf3 Ne5
1959 Skittles – Round ? – Blackstone, John – 0-1 – Foley, Donald – G30 1. e4 d6 2. d4 g6 3. c4 Bg7 4. Nc3 Nf6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Bg5 c6 9. Qd2 Re8 10. d5 a5
1959 Tbilisi ch-URS – Round 2 – Furman, Slavomir – 0-1 – Vasiukov, Evgeni – G13 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 g6 6. Be2 Bg7 7. O-O O-O 8. Rb1 exd4 9. Nxd4 Re8 10. f3 c6
1960 Atlantida – Round 5 – Rossetto, Hector – 1-0 – Olivera, Alfredo – G16 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 O-O 6. Nf3 Nbd7 7. O-O e5 8. Bg5 h6 9. Bh4 g5 10. dxe5 dxe5
1960 BRA-ch27 – Round 12 – Alves, Francisco H B Severino – 1-0 – Toth, Peter – G28 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. h3 c6 9. Re1 Re8 10. Bf1 Qc7
1960 St Louis US Open – Round ? – Donovan, Jack – 0-1 – Evans, Larry M – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. b4 Re8
1962 Erevan ch-URS – Round 1 – Kots, Yuri I – 1-0 – Savon, Vladimir – G53 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Bg5 h6 9. Bh4 exd4 10. Nxd4 Re8
1963 Buenos Aires ch-ARG – Round 1 – Alonso-Lej De Las Casas, Fernando – 0-1 – Aguayo Cruz, Ramon Uriel – G5 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 g6 6. Be2 Bg7 7. O-O O-O 8. Bg5 exd4 9. Nxd4 h6 10. Be3 Re8
1963 Pan American Ch – Round 1 – Etcheverry, Eduardo – 1-0 – Haro Garcia, Gilberto – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Bg5 c6 9. dxe5 dxe5 10. Qd2 Re8
1964 Tel Aviv olm prel – Round 4 – Cintron, Rafael L – 0-1 – Radovici, Corvin – G136 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Bg5 h6 9. Bh4 c6 10. d5 cxd5
1965 Hastings ch-BCF – Round 6 – Parr, Frank – 1/2-1/2 – Woodcock, CF. – G65 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be2 d6 6. Nf3 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. b3 Re8
1966 Club Championship – Round 10 – Babbitt, N. – 0-1 – Osbun, Erik – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. b4 c6 10. Bb2 Qe7
1966 Mar del Plata – Round 6 – Acosta Garcia, Rafael Isaac – 1-0 – Schweber, Samuel – G32 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Rb1 exd4 9. Nxd4 Nc5 10. f3 a5
1966 Panamerican – Round 1 – Pereira Cuellar, Miguel – 1/2-1/2 – Schweber, Samuel – G24 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nbd7 8. Rb1 c6 9. b4 exd4 10. Nxd4 Re8
1967 DDR Ch women – Round 3 – Janssen, Lieselotte – 0-1 – Nowarra, Waltraud – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Qc2 c6 10. b3 Qc7
1967 Sofia tt – Round 1 – Kolarov, Atanas Stefanov – 1-0 – Skalkotas, Nikolaos – G8 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Rb1 c6 9. d5 Nc5 10. Nd2 a5
1968 Buenos Aires – Round 5 – Najdorf, Miguel – 1/2-1/2 – Schweber, Samuel – G41 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Rb1 Re8 9. d5 Nc5 10. Nd2 Bh6
1969 OWL Ch – Round 2 – Werner, Stephan – 1-0 – Hildebrand Hartwig – G5 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 d6 5. e4 O-O 6. Be2 Nbd7 7. O-O e5 8. h3 Re8 9. dxe5 Nxe5 10. Nxe5 Rxe5
1969 Schwerin – Round 3 – Malich, Burkhard, Dr. – 0-1 – Pfeil, Antoine – G42 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. Bg5 h6 9. Bh4 a5 10. d5 g5
1971 Hoogovens – Round 1 – Denker, Arnold S – 1-0 – ? – G101 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Bg5 h6 9. Be3 Re8 10. dxe5 dxe5
41. Olympiad Open 2014 – Round 4.17 – Munkhgal, Gombosuren – 0-1 – Kozul, Zdenko – G260 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 g6 6. Be2 Bg7 7. O-O O-O 8. h3 exd4 9. Nxd4 Re8 10. Bd3 Nc5
Thessaloniki olm 1984 – Round 1 – Barumba, G. – 0-1 – Anand, Viswanathan – G6 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. b3 Qe7 10. Qc2 c6

E94p —

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7

Eval: [+0.65]

Les coups candidats

8.Be3 — 30.3% (6170 parties) →

Ambassadeurs : McNab, Colin A (57x), Knaak, Rainer (41x), Uhlmann, Wolfgang (34x), Farago, Ivan (26x), Casper, Thomas (24x), Vogt, Lothar (23x), Chekhov, Valery A (20x), Bielczyk, Jacek (19x)

8.Re1 — 26.1% (5315 parties) →

Ambassadeurs : Knaak, Rainer (33x), Vogt, Lothar (32x), Najdorf, Miguel (23x), Sakic, Radislav (22x), Reshevsky, Samuel (21x), Taimanov, Mark (19x), Bielczyk, Jacek (18x), Nemet, Ivan (17x)

8.d5 — 19.2% (3919 parties) →

Ambassadeurs : Flohr, Salo (14x), Hicker, Harald (9x), Najdorf, Miguel (8x), Euwe, Max (6x), De Coverly, Roger D (6x), Huss, Andreas (6x), Vann, Monica S (5x), Czartoryski, Pawel (5x)

8.Qc2 — 13.1% (2678 parties) →

Ambassadeurs : Todorcevic Antic, Miodrag (27x), Vogt, Lothar (25x), Kozul, Zdenko (23x), Ftacnik, Lubomir (21x), Cebalo, Miso (19x), Bosboom, Manuel (17x), Knaak, Rainer (15x), McNab, Colin A (12x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Be3	8.Re1	8.d5	8.Qc2
<1800	521	19%	11%	46%	6%
1800-2200	6025	28%	20%	26%	8%
2200-2600	9423	37%	29%	10%	19%
2600+	207	51%	28%	3%	17%

Évolution par décennie (% des parties)

Décennie	N parties	8.Be3	8.Re1	8.d5	8.Qc2
1920s	17	—	—	18%	—
1930s	53	—	9%	49%	2%
1940s	98	4%	34%	40%	3%
1950s	338	6%	57%	15%	7%
1960s	347	12%	55%	18%	3%
1970s	716	19%	54%	17%	4%
1980s	1846	26%	36%	13%	20%
1990s	4202	23%	26%	21%	19%
2000s	5296	30%	25%	22%	11%
2010s	5907	37%	19%	20%	11%
2020s	1566	51%	17%	12%	12%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Be3	37%	51%	▲ +13.8%
8.Re1	19%	17%	▼ -2.0%
8.d5	20%	12%	▼ -7.4%
8.Qc2	11%	12%	▲ +1.3%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 10 parties
Tal, Mikhail — 10 parties
Anand, Viswanathan — 6 parties
Kasparov, Garry — 5 parties
Gukesh D — 4 parties
Ju, Wenjun — 3 parties
Smyslov, Vladimir — 2 parties
Karpov, Aleksandr — 2 parties
Carlsen, Magnus — 2 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Botvinnik, Mikhail — 1 partie

Parties historiques

8.Be3 — 30.3% (6170 parties)

1947 — Abrahams, Gerald vs Newman, Richard Hilary — 0-1 — Harrogate
1949 — Fridstein, German vs Khasin, Abram — 1-0 — Moscow RUS
1949 — Fridstein, German vs Aronin, Lev — 1-0 — Moscow RUS
1949 — Vatnikov, Josif E vs Bannik, Anatolij — 1/2-1/2 — Vilnius LTU
1951 — Cherepkov, Alexander V vs Petrosian, Tigran A. — 0-1 — Sverdlovsk

8.Re1 — 26.1% (5315 parties)

1931 — Antze, Oskar vs Carls, Carl — 0-1 — Bremen GER
1936 — Reilly, Tim vs Thomas, George Alan — 1-0 — Margate ENG
1936 — Kupchik, Abraham vs Morton, Harold — 1-0 — New York, NY USA
1938 — Nilsson, Allan vs Lundin, Erik — 1-0 — Orebro SWE
1939 — Letelier Martner, Rene vs Pelikán, Jiří — 0-1 — Buenos Aires ARG

8.d5 — 19.2% (3919 parties)

1926 — Acebey Michel, Veroska vs Davidson, Jacques — 0-1 — Semmering AUT
1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — den Haag m
1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — The Netherlands
1931 — Michell, Reginald vs Tylor, Theodore Henry — 1-0 — Worcester
1931 — Spencer, Edmund vs Thomas, George Alan — 0-1 — Worcester

8.Qc2 — 13.1% (2678 parties)

1938 — Zagoriansky, Evgeny vs Kopaev, Nikolay A — 0-1 — Leningrad RUS
1948 — Kottnauer, Cenek vs Henneberke, Frans — 0-1 — It Beverwijk NED
1949 — Heinicke, Herbert vs Wood, Baruch — 1-0 — ?
1949 — Heinicke, Herbert vs Heemsoth, Hermann — 0-1 — Oldenburg GER
1950 — O'Kelly, A. vs Van den Berg, Cees — 1/2-1/2 — Amsterdam NED

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