E07k — Catalan: Closed, 6…Nbd7 7.Nc3 c6 8.b3

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Nc3 c6 8.b3 * ● 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 les cases fortes f4, e5 et g5 et la paire de fous.

Côté adverse. Le fou enfermé en 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. Exploiter la case forte e4.

Atouts. Les Noirs s'appuient sur la case forte e4, un fou actif en e7 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2.

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

Plans. ...c5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● c6→d5, e6→d5, b7→c6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● e5 (2v1), ● g5 (2v0)	● e4 (2v1)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v1)	● d5 (3v2), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bg2	● Bg2 Enfermé (mob. 2)
Be7		● Be7 Actif (mob. 4)
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	● …c6-c5, ● …e6-e5

Partie
1925 DSB-24.Kongress – Round 3 – Reti, Richard – 1-0 – Von Gottschall, Hermann – G9 1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. Bg2 c6 5. b3 Be7 6. d4 O-O 7. Nf3 Nbd7 8. O-O Re8 9. Bb2 Nf8 10. Ne5 N6d7
1937 Kemeri – Round 22 – Keres, Paul Petrovich – 1-0 – Book, Eero – G146 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. d4 O-O 6. Nc3 c6 7. O-O Nbd7 8. b3 b6 9. Bb2 a5 10. Nd2 Ba6
1937 Trebitsch mem3738 – Round 5 – Mueller, Hans – 1/2-1/2 – Weil, Wolfgang – G18 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Nc3 c6 6. Nf3 Be7 7. O-O O-O 8. b3 b6 9. Bb2 Bb7 10. cxd5 exd5
1938 Noordwijk – Round 1 – Keres, Paul Petrovich – 1/2-1/2 – Bogoljubow, Efim – G7 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. Nc3 c6 8. b3 a6 9. Bb2 b5 10. Ne5 Nxe5
1947 Buenos Aires ch-ARG – Round 1 – Piro, Valerio – 1/2-1/2 – Luckis, Marcos – G48 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. d4 O-O 6. Nc3 c6 7. O-O Nbd7 8. b3 b6 9. cxd5 cxd5 10. Bb2 Bb7
1948 Mar del Plata – Round 10 – Denker, Arnold S – 0-1 – Rossetto, Hector – G83 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. g3 O-O 6. Bg2 Nbd7 7. b3 c6 8. O-O b6 9. Qc2 Ba6 10. Rd1 Rc8
1949 Moscow – Round 1 – Fridstein, Grigory – 1/2-1/2 – Zagoriansky, Evgeny – G12 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. g3 O-O 6. Bg2 Nbd7 7. O-O c6 8. b3 Ne4 9. Bb2 f5 10. Ne1 Nd6
1950 Amsterdam – Round 1 – Najdorf, Miguel – 1-0 – Foltys, Jan – G11 1. d4 d5 2. c4 e6 3. Nf3 Be7 4. g3 Nf6 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 c6 8. b3 b6 9. Bb2 Bb7 10. e3 Rc8
1950 Amsterdam – Round 11 – Najdorf, Miguel – 1-0 – Foltys, Jan – G109 1. d4 d5 2. c4 e6 3. Nf3 Be7 4. g3 Nf6 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 c6 8. b3 b6 9. Bb2 Bb7 10. e3 Rc8
1952 Budapest – Round 4 – Troianescu, Octav – 1-0 – Szabo, Ladislav – G39 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Nf3 Be7 6. O-O O-O 7. Nc3 c6 8. b3 b6 9. Bb2 Ba6 10. Ne5 Nxe5
1952 YUG Ch – Round 2 – Udovcic, Mijo – 0-1 – Djurasevic, Bozidar – G1 1. d4 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 d5 5. Nc3 O-O 6. Nf3 c6 7. O-O Nbd7 8. b3 b6 9. Bb2 Bb7 10. Qd3 c5
1954 HUN Ch 10th – Round ? – Szabo, Laszlo – 1/2-1/2 – Forintos, Gyozo V – G24 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c6 5. g3 Be7 6. Bg2 O-O 7. O-O Nbd7 8. b3 Qc7 9. Bb2 Re8 10. Nd2 dxc4
1954 Mar del Plata/B.Aires zt it-17 – Round 19 – Najdorf, Miguel – 1-0 – Shocron, Ruben – G16 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. Nc3 c6 8. b3 b6 9. Bb2 Bb7 10. e3 Rc8
1955 Gecsei Memorial – Round 9 – Hajtun, Jozsef – 1-0 – Demeny, Antal – G29 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 Nbd7 7. Nc3 c6 8. b3 b6 9. cxd5 exd5 10. Bb2 Bb7
1956 Alekhine Memorial – Round 1 – Uhlmann, Wolfgang – 1/2-1/2 – Sliwa, Bogdan – G10 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. b3 c6 8. Nc3 b6 9. Bb2 Bb7 10. Qd3 c5
1957 Rio de Janeiro zt – Round 1 – Najdorf, Miguel – 1/2-1/2 – Rossetto, Hector – G6 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 c6 5. b3 Nbd7 6. O-O Be7 7. d4 O-O 8. Nc3 b6 9. Bb2 Bb7 10. Rc1 Rc8
1958 Argentina – Round 10 – Panno, Oscar – 1/2-1/2 – Luckis, Marcos – G75 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 c6 7. Nc3 Nbd7 8. b3 b6 9. Bb2 Ba6 10. Nd2 Rc8
1958 Argentina – Round 4 – Panno, Oscar – 1/2-1/2 – Puiggros, Guillermo – G33 1. Nf3 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 O-O 5. O-O d5 6. d4 c6 7. Nc3 Nbd7 8. b3 Re8 9. Bb2 Rb8 10. a4 Bb4
1959 Madrid – Round 1 – Bernstein, Olivia – 0-1 – Prins, Laura – G14 1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. d4 e6 5. O-O Be7 6. c4 c6 7. Nc3 O-O 8. b3 Qa5 9. Bb2 b5 10. c5 Qc7
1960 Olympiad prel II – Round 4 – Donner, Jan-Hein – 0-1 – Sliwa, Bogdan – G6 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. b3 c6 8. Nc3 b6 9. Bb2 Bb7 10. e3 Rc8
1961 Buenos Aires ch-ARG – Round 10 – Acosta Garcia, Rafael Isaac – 1/2-1/2 – Rossetto, Hector – G60 1. c4 e6 2. g3 d5 3. Bg2 c6 4. Nf3 Nd7 5. O-O Be7 6. d4 Ngf6 7. Nc3 O-O 8. b3 b6 9. Bb2 Ba6 10. Nd2 Rc8
1961 Chigorin Memorial – Round 15 – Krogius, Nikolai V – 1-0 – Ujtumen, Tudev – G24 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 c6 7. Nc3 Nbd7 8. b3 Qb6 9. Qc2 Qa6 10. Nd2 Ba3
1961 Dortmund – Round 1 – Udovic, Andraz – 1-0 – Teschner, Rudolf – G7 1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. d4 c6 7. O-O Nbd7 8. b3 a5 9. Qc2 b6 10. e4 Ba6
1961 Mar del Plata – Round 12 – Filip, Marius Liviu – 1-0 – Quinones Carrillo, Oscar – G100 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 Nbd7 7. Nc3 c6 8. b3 b6 9. Bb2 Bb7 10. e3 c5
1962 Lasker Memorial – Round 10 – Udovcic, Mijo – 1-0 – Liebert, Heinz – G11 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. O-O Be7 5. d4 O-O 6. c4 c6 7. b3 Nbd7 8. Nc3 b6 9. Bb2 Bb7 10. Qc2 Rc8
1962 Lasker Memorial Berlin-Ost – Round 10 – Doda, Zbigniew – 1-0 – Fuchs, Reinhart – G44 1. c4 Nf6 2. Nf3 e6 3. Nc3 d5 4. d4 c6 5. g3 Nbd7 6. Bg2 Be7 7. O-O O-O 8. b3 b6 9. Bb2 a5 10. e4 Bb7
1964 Amsterdam Interzonal – Round 11 – Rossetto, Hector – 1-0 – Vranesic, Zvonko – G105 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 c6 7. Nc3 Nbd7 8. b3 b6 9. Bb2 Bb7 10. Rc1 Rc8
1964 Belgrade – Round 1 – Larsen, Bent Ravn – 1-0 – Ciric, Dragoljub M – G2 1. c4 e6 2. Nf3 d5 3. g3 c6 4. b3 Nf6 5. Bg2 Be7 6. O-O O-O 7. d4 Nbd7 8. Nc3 b6 9. Bb2 Bb7 10. Qb1 Rc8
1964 WchT U26 11. fin-A – Round 4.2 – Savon, Vladimir A – 1-0 – Radulov, Ivan – G64 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. g3 O-O 6. Bg2 c6 7. O-O Nbd7 8. b3 b6 9. Bb2 Ba6 10. Re1 Rc8
1965 Hungary – Round 1 – Sapi, Laszlo – 1/2-1/2 – Szily, Jozsef – G112 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. d4 Be7 5. c4 O-O 6. O-O c6 7. Nc3 Nbd7 8. b3 a6 9. Bf4 Nh5 10. Bd2 Nhf6
1965 Tbilisi Tbilisi GEO – Round 1 – Damjanovic, Mato – 0-1 – Fuchs, Reinhart – G5 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. g3 Be7 6. Bg2 O-O 7. O-O Nbd7 8. b3 b6 9. Bb2 Bb7 10. Qc2 Rc8
1965 Tbilisi Tbilisi GEO – Round 1 – Damjanovic, Mato – 1/2-1/2 – Balcerowski, Witold – G7 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. g3 Be7 6. Bg2 O-O 7. O-O Nbd7 8. b3 b6 9. Bb2 Bb7 10. Qc2 Qc7
1966 Lanjaron – Round 6 – Aguero Quesada, Gloriana – 0-1 – Medina-Garcia, Antonio – G21 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. Nc3 c6 7. O-O Nbd7 8. b3 b6 9. cxd5 cxd5 10. Bb2 Ba6
1967 Copenhagen – Round 1 – Brinck-Claussen, Bjorn – 1-0 – Canton, B – G4 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 c6 7. b3 Nbd7 8. Nc3 Qa5 9. Qc2 dxc4 10. bxc4 e5
1967 HUN Ch – Round 15 – Kovacs, Laszlo M – 1-0 – Szilagyi, Peter – G58 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nf3 Be7 6. O-O O-O 7. b3 Nbd7 8. Nc3 b6 9. Re1 Bb7 10. Bb2 Qc7
1967 Toronto Closed – Round 1 – Sarosy, Zoltan L – 1/2-1/2 – Kegel, John – G1 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 c6 7. Nc3 Nbd7 8. b3 b6 9. Bb2 Bb7 10. cxd5 exd5
1967 Zinnowitz – Round 1 – Schoeneberg, Manfred – 1-0 – Espig, Lutz – G5 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 Nbd7 7. Nc3 c6 8. b3 b6 9. Bb2 Bb7 10. Ne5 Qb8
1968 Solingen – Round 3 – Eising, Johannes – 1/2-1/2 – O'Kelly de Galway, Alberic – G16 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 c6 7. Nc3 Nbd7 8. b3 b6 9. Bb2 Bb7 10. Qc2 Rc8
1968 Wijk aan Zee II – Round 1 – Ujtelky, Maximilian – 1/2-1/2 – Medina-Garcia, Antonio – G4 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 Nbd7 7. b3 c6 8. Nc3 b6 9. Bb2 Bb7 10. Qd3 Rc8
1968 Wijk aan Zee II – Round 1 – Ujtelky, Maximilian – 1/2-1/2 – Monsoy, Arild Edin – G3 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. d4 Nbd7 7. b3 c6 8. Nc3 b6 9. Bb2 Bb7 10. Qd3 Rc8
1969 Palma de Mallorca – Round 14 – Szabo, Laszlo – 1/2-1/2 – Spassky, Boris Vasily – G121 1. d4 d5 2. Nf3 e6 3. g3 Nf6 4. Bg2 Be7 5. c4 O-O 6. O-O c6 7. Nc3 Nbd7 8. b3 b6 9. Bb2 Bb7 10. Rc1 Ne4
1972 Skopje ol (Men) fin-A – Round 15 – Pytel, Krzysztof – 0-1 – Benko, Pal – G418 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 Nbd7 7. Nc3 c6 8. b3 b6 9. Bb2 Ba6 10. Nd2 b5
1974 Manila – Round 1 – Quinteros, Miguel Angel – 0-1 – Andersson, Ulf – G47 1. d4 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 d5 5. Nf3 O-O 6. O-O c6 7. Nc3 Nbd7 8. b3 b6 9. Qc2 Ba6 10. Nd2 b5
34. ECC Open 2018 – Round 7.1 – Rodshtein, Maxim – 1-0 – Predojevic, Borki – G201 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. Nc3 c6 7. O-O Nbd7 8. b3 b6 9. Bb2 Ba6 10. Nd2 b5
36. Olympiad 2004 – Round 7 – Roiz, Michael – 1/2-1/2 – Lputian, Smbat – G227 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Nc3 Nbd7 8. Bf4 Nh5 9. Bd2 Nhf6 10. Bf4 Nh5
4. FIDE GP 2009 – Round 11 – Gelfand, Boris – 1-0 – Mamedyarov, Shakhriyar – G56 1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 Nh5 10. Bc1 Nhf6
7. World Team Championship 2010 – Round 3 – Gelfand, Boris – 1-0 – Vescovi, Giovanni – G46 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Bf4 Nbd7 9. Nc3 Nh5 10. Bc1 Nhf6
FIDE WCh KO 2000 – Round 1.5 – Ehlvest, Jaan – 1-0 – Nogueiras Santiago, Jesus – G45 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. d4 c6 7. Nc3 Nbd7 8. b3 b6 9. Bb2 Ba6 10. Nd2 b5
FIDE-Wch k.o. g/25+10 1999 – Round 6.5 – Khalifman, Alexander – 1-0 – Nisipeanu, Liviu-Dieter – G48 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Nf3 Nbd7 6. O-O Be7 7. Nc3 O-O 8. b3 b6 9. Nd2 Ba6 10. e4 b5
Interpolis 1978 – Round 9 – Huebner, Robert – 1-0 – Spassky, Boris V. – G35 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 c6 7. Nc3 Nbd7 8. b3 b6 9. Ne5 Nxe5 10. dxe5 Nd7
Manila Interzonal 1990 – Round 10 – Gelfand, Boris – 1/2-1/2 – Gurevich, Mikhail – G162 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. Nc3 c6 7. O-O Nbd7 8. b3 b6 9. Nd2 Bb7 10. e4 Rc8
World Blitz 2015 – Round 18.38 – Ragger, Markus – 1-0 – Inarkiev, Ernesto – G1125 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. g3 Nbd7 6. Bg2 Be7 7. O-O O-O 8. b3 b6 9. Qd3 a5 10. e4 Ba6
World Blitz 2019 – Round 2.66 – Dubov, Daniil – 1/2-1/2 – Galkin, Alexander – G136 1. c4 e6 2. Nc3 d5 3. d4 c6 4. g3 Nf6 5. Bg2 Be7 6. Nf3 O-O 7. O-O Nbd7 8. Bf4 Nh5 9. Bc1 Nhf6 10. b3 b6
World Rapid 2019 – Round 9.43 – Melkumyan, Hrant – 0-1 – Geller, Jakov – G591 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Nc3 Nbd7 8. b3 b6 9. Bb2 Ba6 10. Nd2 b5

E07k — Closed

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Nc3 c6 8.b3

Eval: [+0.31]

Les coups candidats

8…b6 — 67.0% (1282 parties)

Ambassadeurs : Gleizerov, Evgeny (6x), Rossetto, Hector (5x), Ciric, Dragoljub M (5x), Sosonko, Gennadi (5x), Najdorf, Miguel (4x), Damjanovic, Mato (3x), Natalucci, Fabrizio (3x), Heinatz, Gundula, Dr. (3x)

8…Re8 — 13.4% (256 parties)

Ambassadeurs : Kube, Hannelore (2x), Alt, Hans Juergen (2x), Estrella Becerra, Fernando (2x), Reti, Richard (1x), Von Gottschall, Hermann (1x), Ascencio Flores, Rodrigo (1x), Rotunno, Ernesto (1x), ? (1x)

8…Ne4 — 3.4% (65 parties)

Ambassadeurs : Fridstein, Grigory (1x), Zagoriansky, Evgeny (1x), Gilruth, Peter (1x), Turner, John (1x), Zatulovskaya, Tatiana (1x), Mutchnik, Larisa (1x), Larsen, Flemming (1x), Jessen, Ernst J. (1x)

8…Qa5 — 3.2% (62 parties)

Ambassadeurs : Magrin, Antonio (2x), Brinck-Claussen, Bjorn (1x), Canton, B (1x), Bernstein, Olivia (1x), Prins, Laura (1x), Pyhala, Antti (1x), Henttinen, Markku I.O. (1x), Harestad, Thor Geir (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…b6	8…Re8	8…Ne4	8…Qa5
<1800	63	43%	27%	3%	2%
1800-2200	787	58%	18%	5%	4%
2200-2600	670	83%	5%	3%	3%
2600+	22	95%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8…b6	8…Re8	8…Ne4	8…Qa5
1920s	1	—	100%	—	—
1930s	5	60%	20%	—	—
1940s	5	40%	—	20%	—
1950s	20	75%	5%	—	5%
1960s	35	80%	3%	—	3%
1970s	62	77%	13%	—	2%
1980s	81	74%	14%	2%	4%
1990s	343	66%	15%	3%	4%
2000s	494	64%	14%	5%	3%
2010s	713	66%	14%	3%	4%
2020s	155	76%	10%	2%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…b6	66%	76%	▲ +10.5%
8…Re8	14%	10%	▼ -3.3%
8…Ne4	3%	2%	▼ -1.2%
8…Qa5	4%	1%	▼ -3.1%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 1 partie
Hou, Yifan — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

8…b6 — 67.0% (1282 parties)

1937 — Mueller, Hans vs Weil, Wolfgang — 1/2-1/2 — Vienna AUT
1937 — Keres, Paul Petrovich vs Book, Eero — 1-0 — Kemeri LAT
1937 — Keres, Paul Petrovich vs Book, Eero — 1-0 — It Kemeri LAT
1947 — Piro, Valerio vs Luckis, Marcos — 1/2-1/2 — Buenos Aires ch-ARG
1948 — Denker, Arnold S vs Rossetto, Hector — 0-1 — Mar del Plata ARG

8…Re8 — 13.4% (256 parties)

1925 — Reti, Richard vs Von Gottschall, Hermann — 1-0 — Breslau GER
1938 — Ascencio Flores, Rodrigo vs Rotunno, Ernesto — 1-0 — Montevideo URU
1958 — Panno, Oscar vs Puiggros, Guillermo — 1/2-1/2 — Buenos Aires ARG
1963 — ? vs Podgaetsky, Alexander — 1-0 — Kiev UKR
1970 — Da Silva, Luiz Tavares vs Lins, Frank Roberto Santana — 0-1 — 37. BRA ch Recife BRA

8…Ne4 — 3.4% (65 parties)

1949 — Fridstein, Grigory vs Zagoriansky, Evgeny — 1/2-1/2 — Moscow RUS
1983 — Zatulovskaya, Tatiana vs Mutchnik, Larisa — 1-0 — Volgograd RUS
1984 — Gilruth, Peter vs Turner, John — 1-0 — Thessaloniki olm
1990 — Mochalov, Evgeny V vs Smagin, Sergey — 1-0 — Podolsk RUS
1990 — Larsen, Flemming Bo vs Simonsen, Michael — 1-0 — Randers DEN

8…Qa5 — 3.2% (62 parties)

1959 — Bernstein, Olivia vs Prins, Laura — 0-1 — Madrid ESP
1967 — Brinck-Claussen, Bjorn vs Canton, B — 1-0 — Copenhagen DEN
1976 — Molaschi vs Magrin, Antonio — 0-1 — cr.
1981 — Harestad, Thor Geir vs Gundersen, Helge — 1-0 — Kirkenes
1984 — Pyhala, Antti vs Henttinen, Markku I.O. — 1-0 — Helsinki FIN

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