A30g — English: Symmetrical, Mutual Double Fianchetto

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte b5 et la paire de fous.

Côté adverse. Le fou enfermé en g7.

Plans. h3 (Empêcher ...Bg4) ; d3 (Protéger e4, libérer Bc1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte e4, un fou actif en b7 et la paire de fous.

Côté adverse. Les fous enfermés en b2 et g2.

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

Plans. ...Nc6 (Développer Nb8) ; ...Bg4 (Clouer Nf3) ; ...d6 (Rupture) ; ...d5 (Rupture) ; ...e6 (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	● b6→c5, a7→b6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	● e4 (2v1)
Cases faibles	—	● d5
Centre	● e5 (1v0)	● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bb2	● Bb2 Enfermé (mob. 2)
Bg2	● Bg2 Enfermé (mob. 2)
Bb7		● Bb7 Actif (mob. 6)
Bg7		● Bg7 Enfermé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	2 (b8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d2-d3, ● e2-e3	● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5

Partie
1925 Montevideo – Round 1 – Anaya Oger, Hector – 1-0 – Trompowsky, Octavio – G14 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. Qc2 Nbd7 10. Rad1 Rc8
1931 Moskou ch-URS – Round 1 – Kan, Ilya A – 0-1 – Mazel, Isaak Y – G9 1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Nc6 9. d4 Nxd4 10. Nxd4 Bxg2
1936 Trebitsch Memorial 19th – Round 15 – Lokvenc, Josef – 1/2-1/2 – Friedmann Henryk – G31 1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. g3 b6 5. Bg2 Bb7 6. O-O Bg7 7. b3 O-O 8. Bb2 d6 9. Rc1 Nc6 10. d4 Nxd4
1938 URS Ch, semi final – Round 1 – Lisitsin, Georgy – 1/2-1/2 – Romanovsky, Pjotr – G86 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. c4 g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Ne4 9. d4 Nxc3 10. Bxc3 Qc7
1939 Leningrad ch-URS – Round 1 – Lisitsin, Georgy – 1/2-1/2 – Chekhover, Vitaly – G9 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Bxc3 Qc7
1942 Chocen – Round ? – Katetov, Miroslav – 1/2-1/2 – Thelen, Bedrich – G46 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Qc8 9. Re1 d6 10. d4 cxd4
1942 Chocen – Round ? – Zita, Frantisek – 1-0 – Tikovsky, Augustin – G6 1. c4 Nf6 2. Nf3 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Qc8 9. Qc2 Nc6 10. Rad1 e5
1942 Duras 60 Memorial – Round 1 – Zita, Filip – 1/2-1/2 – Foltys, Jan – G4 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. e3 Qc8 10. d4 cxd4
1943 UJCS-17.Kongress – Round 11 – Zita, Frantisek – 1/2-1/2 – Sajtar, Jaroslav – G56 1. Nf3 Nf6 2. g3 g6 3. b3 b6 4. Bb2 Bb7 5. Bg2 Bg7 6. O-O O-O 7. c4 c5 8. Nc3 Qc8 9. Rc1 d6 10. Qc2 Nc6
1943 Zlin – Round 9 – Kottnauer, Cenek – 1/2-1/2 – Sajtar, Jaroslav – G55 1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Nc6 9. d4 Nxd4 10. Nxd4 Bxg2
1945 Novi Sad – Round 1 – Vidmar, Milan Jr – 0-1 – Milic, Borislav – G45 1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 O-O 5. g3 b6 6. Bg2 Bb7 7. O-O c5 8. Nc3 Qc8 9. d4 cxd4 10. Nxd4 Bxg2
1947 Hilversum zt – Round 1 – Rossolimo, Nicolas – 1/2-1/2 – Plater, Kazimierz – G15 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 b6 5. Bg2 Bb7 6. O-O O-O 7. c4 c5 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
1949 Trencianske Teplice – Round 12 – Ujtelky, Maximilian – 1/2-1/2 – Golombek, Harry – G73 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. b3 g6 6. Bb2 Bg7 7. O-O O-O 8. Nc3 Nc6 9. e3 d5 10. Nxd5 Nxd5
1949 URS Ch, semi final – Round 1 – Batuev, Anton – 1/2-1/2 – Alatortsev, Vladimir N. – G98 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. c4 g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 e6 9. e3 d5 10. cxd5 Nxd5
1950 Amsterdam – Round 16 – Pirc, Vasja – 1/2-1/2 – Van den Berg, Cees – G151 1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Qc8 9. d3 d6 10. e4 e5
1951 Hungary Ch – Round 21 – Szily, Jozsef – 1/2-1/2 – Koberl, Ferenc – G76 1. Nf3 Nf6 2. g3 g6 3. b3 b6 4. Bg2 Bb7 5. O-O Bg7 6. Bb2 O-O 7. c4 c5 8. Nc3 Ne4 9. d4 Nxc3 10. Bxc3 Nc6
1952 Budapest – Round 15 – Szily, Jozsef – 1/2-1/2 – Golombek, Harry – G138 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
1952 Buenos Aires – Round 2 – Garcia Vera, Romeo – 1-0 – Aponte De La Corte, Jose Manuel – G26 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 cxd4 10. Nxd4 Bxg2
1953 BUL-DDR m – Round 2.2 – Tsvetkov, Alexandar K – 1-0 – Koch, Berthold – G12 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. b3 Bg7 6. Bb2 O-O 7. c4 c5 8. Nc3 d6 9. d4 cxd4 10. Qxd4 Ne4
1954 Olympiad final A – Round 10 – Trifunovic, Petar – 1-0 – Rellstab, Ludwig – G111 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Nc6 9. d4 Nxd4 10. Nxd4 Bxg2
1954 Olympiad final A – Round 3 – Trifunovic, Petar – 1-0 – Golombek, Harry – G97 1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Qc8 9. d4 cxd4 10. Qxd4 Nc6
1958 Munich olm fin-B – Round 1 – Portisch, Lajos – 1-0 – Boutteville, Cesar – G9 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. b3 Bg7 6. Bb2 O-O 7. c4 c5 8. Nc3 d6 9. d4 e6 10. Re1 Qd7
1960 Poland Ch – Round 8 – Drozd, Robert – 1-0 – Gawlikowski, Stanislaw – G33 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. c4 g6 6. Nc3 Bg7 7. b3 O-O 8. Bb2 Nc6 9. e3 d5 10. d4 dxc4
1961 Reggio Emilia ITA – Round 2 – Pirc, Vasja – 1/2-1/2 – Romani, Elio – G3 1. Nf3 Nf6 2. g3 g6 3. b3 b6 4. Bb2 Bg7 5. Bg2 Bb7 6. O-O O-O 7. c4 c5 8. Nc3 Nc6 9. Nd5 e6 10. Nxf6+ Bxf6
1965 Capablanca Memorial – Round 11 – Smyslov, Vladimir – 1-0 – Perez Perez, Francisco Jose – G117 1. Nf3 Nf6 2. g3 g6 3. c4 c5 4. b3 Bg7 5. Bb2 b6 6. Bg2 Bb7 7. O-O O-O 8. Nc3 Ne4 9. Qc2 Nd6 10. Rad1 Nc6
1966 Hungary – Round 1 – Varnusz, Egon – 1-0 – Csom, I. – G101 1. Nf3 b6 2. g3 Bb7 3. Bg2 c5 4. c4 Nf6 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Nc6 9. d4 Ne8 10. d5 Nd4
1968 Hastings6869 – Round 1 – Keene, Raymond D – 0-1 – Smyslov, Vladimir – G5 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 e6 9. Rb1 Qe7 10. e3 Rd8
1972 Skopje ol (Men) fin-A – Round 8 – Liebert, Heinz – 1/2-1/2 – Pytel, Krzysztof – G415 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 Ne4 10. Rc1 Nxc3
1972 Skopje ol (Men) fin-A – Round 9 – Filip, Miroslav – 1/2-1/2 – Smyslov, Vassily – G411 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 e6 9. Rc1 d5 10. cxd5 Nxd5
1973 Leningrad Interzonal – Round 6 – Tal, Mihail – 0-1 – Korchnoi, Viktor – G147 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Ne4 9. Na4 Bxb2 10. Nxb2 d5
1975 Portoroz/Ljubljana – Round 11 – Ribli, Zoltan – 1/2-1/2 – Barle, Janez – G120 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Bxc3 Bxc3
1975 URS Team Ch – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Gipslis, Aivars – G576 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. c4 g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. dxc5 Nxc5
42. Olympiad 2016 – Round 2.7 – AlHuwar, Jasem – 0-1 – Swiercz, Dariusz – G156 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 b6 5. Bg2 Bb7 6. O-O O-O 7. c4 c5 8. Nc3 d6 9. e3 Ne4 10. Qc2 Nxc3
Belgrade m 1985 – Round 4 – Andersson, Ulf 1949 – 1/2-1/2 – Kasparov, Garry – G4 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. cxd5 Nxd5
Biel Interzonal 1985 – Round 11 – Andersson, Ulf 1949 – 1/2-1/2 – Polugaevsky, Lev – G34 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. Ne5 e6
Biel Interzonal 1985 – Round 12 – Andersson, Ulf 1949 – 1/2-1/2 – Vaganian, Rafael A – G37 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 e6 10. d4 d5
Bugojno 1978 – Round 3 – Timman, Jan H – 0-1 – Larsen, Bent – G25 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. cxd5 Nxd5
Bugojno 1980 – Round 4 – Ivkov, Borislav – 1/2-1/2 – Kavalek, Lubomir – G15 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 e6 9. Rc1 d6 10. d4 Qe7
Clarin 1979 – Round 1 – Ivkov, Borislav – 0-1 – Larsen, Bent – G5 1. Nf3 Nf6 2. c4 c5 3. Nc3 b6 4. g3 Bb7 5. Bg2 g6 6. b3 Bg7 7. Bb2 O-O 8. O-O Na6 9. d4 cxd4 10. Nxd4 Bxg2
Clarin 1979 – Round 2 – Ivkov, Borislav – 0-1 – Larsen, Bent – G8 1. Nf3 Nf6 2. c4 c5 3. Nc3 b6 4. g3 Bb7 5. Bg2 g6 6. b3 Bg7 7. Bb2 O-O 8. O-O Na6 9. d4 cxd4 10. Nxd4 Bxg2
Interpolis 1983 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Vaganian, Rafael A – G44 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 e6 9. d4 d5 10. dxc5 bxc5
Mar del Plata 1982 – Round 1 – Larsen, Bent – 1/2-1/2 – Giardelli, Sergio C. – G57 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. c4 g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Nc6 9. d4 Nxd4 10. Nxd4 Bxg2
Montreal 1979 – Round 18 – Tal, Mikhail – 1/2-1/2 – Timman, Jan H – G76 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. d4 d5 10. dxc5 Nxc5
Moskou ch-URS 1973 – Round 16 – Polugaevsky, Lev – 1/2-1/2 – Savon, Vladimir Andreevichndreevich – G95 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 Rc8 10. d4 d5
Moskou ch-URS 1976 – Round 1 – Smyslov, Vassily – 1/2-1/2 – Karpov, Anatoly – G39 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. e3 d5 10. Nxd5 Nxd5
Ruy Lopez Memorial 1975 – Round 13 – Hort, Vlastimil – 1/2-1/2 – Ljubojevic, Ljubomir – G30 1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. g3 b6 5. Bg2 Bb7 6. b3 Bg7 7. Bb2 O-O 8. O-O Nc6 9. d4 Nxd4 10. Nxd4 Bxg2
Sinquefield Cup Ultimate Moves 2015 – Round ? – Anand, Viswanathan – 1-0 – Topalov, Veselin – G5 1. Nf3 Nf6 2. b3 b6 3. g3 Bb7 4. Bg2 g6 5. Bb2 Bg7 6. O-O O-O 7. c4 c5 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
SportAccord Blitz 2014 – Round 22.7 – Harikrishna, Pentala – 1/2-1/2 – Mamedyarov, Shakhriyar – G174 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. b3 Bg7 6. Bb2 O-O 7. c4 c5 8. Nc3 Nc6 9. d4 cxd4 10. Nxd4 Rc8
Thessaloniki olm 1988 – Round 9 – Jussupow, Artur – 1/2-1/2 – Benjamin, Joel – G86 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
World Blitz 2016 – Round 10.2 – Karjakin, Sergey – 1-0 – Salem, A.R. Saleh – G392 1. Nf3 c5 2. c4 Nf6 3. b3 g6 4. Bb2 Bg7 5. g3 b6 6. Bg2 Bb7 7. O-O O-O 8. Nc3 d6 9. d4 cxd4 10. Qxd4 Nbd7
World Blitz 2017 – Round 5.9 – Grischuk, Alexander – 1/2-1/2 – Fedoseev, Vladimir – G284 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 b6 5. Bg2 Bb7 6. O-O O-O 7. c4 c5 8. Nc3 e6 9. d4 cxd4 10. Qxd4 Nc6
World Blitz 2019 – Round 10.47 – Meier, Georg – 0-1 – Pigusov, Evgeny – G694 1. Nf3 Nf6 2. g3 c5 3. c4 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 e6 10. d4 d5
World Blitz 2019 – Round 16.37 – Meier, Georg – 1/2-1/2 – Predke, Alexandr – G1080 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 cxd4 10. Qxd4 Nbd7
World Blitz 2019 – Round 19.21 – Vitiugov, Nikita – 0-1 – Predke, Alexandr – G1269 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. c4 c5 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d6 9. d4 cxd4 10. Nxd4 Bxg2
World Cup 1988 – Round 14 – Andersson, Ulf 1949 – 1/2-1/2 – Speelman, Jon S – G120 1. Nf3 c5 2. c4 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 e6 10. d4 d5
World Cup 1989 – Round ? – Hjartarson, Johann – 1/2-1/2 – Speelman, Jon S – G118 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. Rc1 d5 10. Nxd5 Nxd5
World Cup 1989 – Round 1 – Speelman, Jon S – 1/2-1/2 – Vaganian, Rafael A – G74 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 1/2-1/2
World Rapid 2019 – Round 5.49 – Triapishko, Alexandr – 0-1 – Chigaev, Maksim – G332 1. Nf3 Nf6 2. g3 g6 3. b3 b6 4. Bb2 Bg7 5. Bg2 Bb7 6. O-O c5 7. c4 O-O 8. Nc3 d6 9. Rc1 Nbd7 10. e3 a6
World Rapid Final 2012 – Round 6 – Radjabov, Teimour – 1-0 – Grischuk, Alexander – G47 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 c5 5. c4 b6 6. Bg2 Bb7 7. O-O O-O 8. Nc3 Na6 9. d4 d5 10. Ne5 e6

A30g — Symmetrical Mutual Double Fianchetto

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3

Eval: [+0.21]

Les coups candidats

8…d6 — 27.1% (495 parties)

Ambassadeurs : Andersson, Ulf (5x), Pinter, Jozsef (4x), Fedorchuk, Sergey A. (4x), Hausrath, Daniel (4x), Spiridonov, Nikola (3x), Brinck-Claussen, Bjorn (3x), Hartoch, Robert G (3x), Sasikiran, Krishnan (3x)

8…Na6 — 26.4% (482 parties)

Ambassadeurs : Andersson, Ulf (18x), Csom, Istvan (13x), Panno, Oscar (10x), Kengis, Edvins (10x), Lechtynsky, Jiri (9x), Espig, Lutz (8x), Stohl, Igor (8x), Polugaevsky, Lev (7x)

8…d5 — 18.3% (334 parties) →

Ambassadeurs : Andersson, Ulf (12x), Tal, Mikhail (7x), Dvoirys, Semen I. (5x), Marinkovic, Slavisa (5x), Seel, Christian, Dr. (4x), Lisitsin, Georgy (3x), Smyslov, Vladimir (3x), Chekhov, Valery A (3x)

8…Nc6 — 12.8% (234 parties)

Ambassadeurs : Kan, Ilya A (3x), Csom, Istvan (3x), Sajtar, Jaroslav (2x), Hort, Vlastimil (2x), Taimanov, Mark (2x), Engqvist, Thomas (2x), Haragos, Kalman (2x), Kaye, Ferdinand (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…d6	8…Na6	8…d5	8…Nc6
<1800	12	33%	8%	8%	25%
1800-2200	272	36%	14%	10%	17%
2200-2600	1279	26%	30%	20%	11%
2600+	92	25%	26%	32%	4%

Évolution par décennie (% des parties)

Décennie	N parties	8…d6	8…Na6	8…d5	8…Nc6
1920s	2	100%	—	—	—
1930s	11	9%	—	27%	36%
1940s	14	36%	—	7%	21%
1950s	21	14%	10%	19%	19%
1960s	14	7%	—	43%	29%
1970s	125	16%	33%	24%	10%
1980s	253	13%	51%	10%	7%
1990s	318	27%	36%	11%	12%
2000s	377	30%	25%	16%	12%
2010s	520	34%	16%	22%	16%
2020s	173	30%	12%	34%	12%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…d6	34%	30%	▼ -4.2%
8…Na6	16%	12%	▼ -3.4%
8…d5	22%	34%	▲ +12.6%
8…Nc6	16%	12%	▼ -4.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Smyslov, Vladimir — 8 parties
Karpov, Aleksandr — 2 parties
Botvinnik, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Kramnik, Vladimir — 1 partie
Hou, Yifan — 1 partie
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie

Parties historiques

8…d6 — 27.1% (495 parties)

1924 — Duchamp, Marcel vs Muffang, Andre — 0-1 — Strasbourg FRA
1925 — Anaya Oger, Hector vs Trompowsky, Octavio — 1-0 — Montevideo URU
1936 — Lokvenc, Josef vs Friedmann Henryk — 1/2-1/2 — Vienna AUT
1942 — Zita, Filip vs Foltys, Jan — 1/2-1/2 — Prague CZE
1946 — Di Camillo, Attilio vs Rubinow, Sol — 1-0 — New York ch-USA

8…Na6 — 26.4% (482 parties)

1952 — Garcia Vera, Romeo vs Aponte De La Corte, Jose Manuel — 1-0 — Buenos Aires ARG
1957 — Newman Caceres, Reynaldo Adolfo vs Pritchard, David Brine — 0-1 — Plymouth
1972 — Portisch, Lajos vs Timman, Jan H — 1/2-1/2 — Wijk aan Zee NED
1972 — Portisch, Lajos vs Savon, Vladimir — 1/2-1/2 — Wijk aan Zee NED
1973 — Gheorghiu, Florin vs Ljubojevic, Ljubomir — 1/2-1/2 — Las Palmas ESP

8…d5 — 18.3% (334 parties)

1934 — Levenfish, Grigory vs Lisitsin, Georgy — 1/2-1/2 — Leningrad RUS
1937 — Weil, Wolfgang vs Becker, Albert — 1/2-1/2 — Vienna AUT
1939 — De Souza Mendes, Joao vs Reinhardt, Heinrich — 1-0 — Buenos Aires ARG
1948 — Lisitsin, Georgy vs Levenfish, Grigory — 1/2-1/2 — Moskou ch-URS
1954 — Lorson, Gerhard vs Porath, Yosef — 1/2-1/2 — Amsterdam NED

8…Nc6 — 12.8% (234 parties)

1931 — Kan, Ilya A vs Bautin, N. — 1-0 — Moscow RUS
1931 — Kan, Ilya A vs Mazel, Isaak Y — 0-1 — Moskou ch-URS
1936 — Bartosek, Milan vs Paroulek, Vit — 0-1 — Podebrady CZE
1936 — Konstantinopolsky, Alexander vs Kan, Ilya A — 1/2-1/2 — Leningrad RUS
1943 — Kottnauer, Cenek vs Sajtar, Jaroslav — 1/2-1/2 — Zlin CZE

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