B49e — Sicilian: Taimanov, 6.Be3 a6 7.Be2 Nf6 8.a3 Be7

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.a3 Be7 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Blancs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), la case forte d4, des fous actifs en e2 et e3, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Le fou enfermé en c8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Attaque sur le roi adverse resté au centre.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'centre (2 contre 1), la case forte e5, un fou actif en e7, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le fou c8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...d5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→a3	● b7→a6, d7→e6, f7→e6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1)	● e5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Actif (mob. 8)
Be3	● Be3 Actif (mob. 5)
Be7		● Be7 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (● a1, ● h1)	3 (● c8, ● a8, ● h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e4-e5, ● f2-f3	● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1959 FRG Ch U20 – Round 2 – Pfleger, Helmut, Dr. – 1/2-1/2 – Taegert, Hans Joachim – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 Nf6 7. O-O a6 8. a3 Be7 9. Be3 O-O 10. f4 Na5
1959 Santiago – Round 3 – Pilnik, Herman – 1/2-1/2 – De Souza Mendes, Joao – G18 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 a6 6. Be2 Qc7 7. O-O Nf6 8. a3 Be7 9. Be3 O-O 10. Kh1 Na5
1959 Tbilisi ch-URS – Round 3 – Keres, Paul – 0-1 – Krogius, Nikolai V – G22 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 Nf6 7. Be2 a6 8. a3 Be7 9. O-O O-O 10. f4 d6
1959 Warsaw Legion tt – Round 5.1 – Witkowski, Stefan – 1-0 – Spanjaard, Eduard – G35 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. a3 Nf6 7. Be3 Nc6 8. Be2 Be7 9. O-O O-O 10. f4 d6
1961 CSR Ch – Round 18 – Skacel, Jan – 0-1 – Filip, Miroslav – G169 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 Nf6 7. O-O a6 8. a3 Be7 9. Be3 O-O 10. f4 d6
1962 Candidats Tournament – Round 17 – Keres, P. – 1-0 – Kortchnoi, V. – G63 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1962 CSR Ch – Round 4 – Opocensky, Karel – 1/2-1/2 – Kupka, Slavoj – G27 1. d4 c5 2. e4 cxd4 3. Nf3 Nc6 4. Nxd4 e6 5. Nc3 Qc7 6. a3 a6 7. Be2 Nf6 8. Be3 Be7 9. f4 O-O 10. e5 Ne8
1962 CSR Ch – Round 8 – Opocensky, Karel – 0-1 – Jansa, Vlastimil – G63 1. d4 c5 2. e4 cxd4 3. Nf3 e6 4. Nxd4 a6 5. Be2 Nf6 6. Nc3 Qc7 7. a3 Nc6 8. Be3 Be7 9. f4 d6 10. g4 Nxd4
1962 Erevan ch-URS – Round ? – Korchnoi, Viktor – 1/2-1/2 – Khodos, German – G170 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. f4 d6 10. Nb3 O-O
1962 New York ch-USA – Round 7 – Mednis, Edmar J – 1/2-1/2 – Benko, Pal – G38 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. a3 Nf6 7. Be3 a6 8. Be2 Be7 9. f4 d6 10. O-O O-O
1962 Spartak Ch – Round 16 – Gurgenidze, Bukhuti – 0-1 – Cherepkov, Alexander V – G124 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. a3 a6 7. Be3 Nf6 8. Be2 Be7 9. O-O O-O 10. f4 d6
1962 Torremolinos zt – Round 1 – Parma, Bruno – 1/2-1/2 – Calvo José Minguez, Ricardo – G30 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. a3 Nf6 8. Be2 Be7 9. O-O O-O 10. f4 d6
1962 Varna olm – Round 2 – Clarke, Peter H – 1/2-1/2 – Purevzhav, S – G94 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. a3 Nc6 7. Be3 Nf6 8. Be2 Be7 9. O-O O-O 10. f4 d6
1963 Amsterdam m1 – Round 6 – Milic, Borislav – 1/2-1/2 – Cuijpers, Frans Andre – G11 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be3 Qc7 7. a3 Nf6 8. Be2 Be7 9. f4 d6 10. O-O O-O
1963 Capablanca Memorial – Round 5 – Tal, Mikhail – 1-0 – Perez Perez, Francisco Jose – G47 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 Nc6 8. Be3 Be7 9. O-O O-O 10. f4 d6
1963 DDR Ch 13th – Round 10 – Geissert, Eberhard – 0-1 – Maedler, Juergen, Dr. – G10 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. a3 Nf6 8. Be2 Be7 9. O-O d6 10. f4 Na5
1963 DDR Ch 13th – Round 8 – Hennings, Artur – 1/2-1/2 – Maedler, Juergen, Dr. – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. a3 Nf6 8. Be2 Be7 9. O-O Ne5 10. f4 Nc4
1963 Halle zt – Round 1 – Johansson Rexner, Melker – 1/2-1/2 – Ivkov, Borislav – G81 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be2 Qc7 7. Be3 Nf6 8. a3 Be7 9. f4 d6 10. O-O O-O
1963 LAT Ch – Round ? – Solmanis, Zigfrids – 1/2-1/2 – Klavins, Janis – G47 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. f4 d5 10. exd5 exd5
1963 Liberation – Round 1 – Nedeljkovic, Aleksandar – 1-0 – Janosevic, Dragoljub – G15 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. a3 Be7 9. O-O d6 10. f4 Bd7
1963 Luzern Clare Benedic – Round ? – Kupper, Josef – 1/2-1/2 – Penrose, Jonathan – G19 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1963 Sochi – Round 2 – Krogius, Nikolai V – 1/2-1/2 – Bukic, Enver – G18 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be2 Qc7 7. Be3 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1963 Telnice/Usti – Round ? – Augustin, Josef – 0-1 – Jansa, Vlastimil – G19 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. Be3 Nf6 8. a3 Be7 9. f4 d6 10. O-O O-O
1963 Winnipeg – Round 13 – Allan Dennis – 1-0 – Fuster, Geza – G30 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. a3 Nf6 7. Be3 a6 8. Be2 Be7 9. f4 d6 10. O-O O-O
1964 ARG Ch – Round 4 – Caglieri, Osvaldo – 0-1 – Cruz, Raul C. – G15 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be3 Nc6 7. a3 Nf6 8. Be2 Be7 9. O-O d6 10. f4 Bd7
1964 Hastings6465 – Round 6 – Aguilera Rocha, Angelina – 1/2-1/2 – Hindle, Owen M – G27 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. a3 Nc6 7. Be3 Nf6 8. Be2 Be7 9. O-O d6 10. f4 Bd7
1964 Hoogovens-B – Round 3 – Gibbs, Peter Campbell – 1/2-1/2 – Mueller, Hans – G13 1. d4 c5 2. e4 e6 3. Nf3 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be3 Nf6 7. a3 Nc6 8. Be2 Be7 9. O-O O-O 10. f4 d6
1964 Kislovodsk – Round 1 – Fichtl, Andreas – 0-1 – Stein, Leon Rico – G9 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1964 Sarajevo 7th – Round 14 – Ciocaltea, Victor – 1/2-1/2 – Bukic, Enver – G18 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be2 Qc7 7. Be3 Nf6 8. a3 Be7 9. f4 d6 10. O-O O-O
1964 Sarajevo 7th – Round 8 – Ciocaltea, Victor – 1/2-1/2 – Polugaevsky, Lev – G10 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. Be3 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1964 URS Spartakiad – Round ? – Liberzon, Vladimir M – 1-0 – Zilber, Israel – G22 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. a3 Be7 9. Be3 d6 10. f4 Bd7
1964 WchT U26 11. fin-B – Round 6.3 – Garcia Martinez, Silvino – 1-0 – Richardson, Keith B – G29 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Be3 Nf6 7. a3 Qc7 8. Be2 Be7 9. O-O O-O 10. f4 d6
1965 Aalborg – Round 1 – Hamann, Svend – 1/2-1/2 – Norby, Peter H. – G43 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 Nf6 7. Be2 a6 8. a3 Be7 9. f4 d6 10. O-O O-O
1965 Central Chess Club Ch sf – Round 1 – Murey, Jacob – 0-1 – Liberzon, Vladimir M – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1965 Chigorin Memorial – Round 12 – Garcia Martinez, Salomon – 0-1 – Jansa, Vlastimil – G56 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. a3 Be7 9. Be3 O-O 10. f4 d6
1965 Chigorin Memorial – Round 12 – Garcia Martinez, Silvino – 0-1 – Jansa, Vlastimil – G55 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. a3 Be7 9. Be3 O-O 10. f4 d6
1965 Novi Sad – Round 18 – Puc, Stojan – 1/2-1/2 – Damjanovic, Marko – G147 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1965 POL Ch 23th sf – Round 1 – Schmidt, Wlodzimierz – 1-0 – Pojedziniec, Wladyslaw – G1 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. a3 Nc6 8. Be3 Be7 9. O-O d6 10. f4 Na5
1965 WchT U26 12. fin-A – Round 8 – Jansa, Vlastimil – 1-0 – Neukirch, Detlef – G48 1. e4 c5 2. Nc3 Nc6 3. Nge2 e6 4. d4 cxd4 5. Nxd4 a6 6. Be2 Qc7 7. O-O Nf6 8. a3 Be7 9. Be3 O-O 10. f4 d6
1965 Zinnowitz 02nd – Round 11 – Neukirch, Detlef – 1/2-1/2 – Kozma, Julius – G28 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1966 Havana CUB – Round 4 – Alvarez del Monte, Jose – 1/2-1/2 – Johansson, Martin 1979 – G35 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. a3 Nf6 6. Nc3 Qc7 7. Be3 a6 8. Be2 Be7 9. f4 d6 10. O-O O-O
1967 FRG Ch 09th – Round 11 – Hecht, Hans-Joachim – 1-0 – Degenhardt, Norbert – G14 1. e4 c5 2. Ne2 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. a3 a6 7. Be2 Qc7 8. Be3 Be7 9. O-O d6 10. f4 Nxd4
1967 October Revolution 50 – Round 1 – Suetin, Alexey S – 1/2-1/2 – Vladimirov, Boris T – G47 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. f4 d6 10. O-O Bd7
1967 Palma de Mallorca – Round 4 – Portisch, Lajos – 1/2-1/2 – Matulovic, Milan – G31 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. a3 Be7 9. O-O O-O 10. f4 d6
1967 Reggio Emilia ITA – Round 13 – Albano, Marco – 0-1 – Bertok, Mario Jr. – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. O-O O-O 10. Nb3 b5
1967 Vrnjacka Banja zt – Round 6 – Hamann, Slawomir – 1/2-1/2 – Jansa, Vlastimil – G41 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. a3 Be7 9. f4 d6 10. O-O O-O
1968 Cardenas/Matanzas/Santa Clara – Round 15 – Alvarez del Monte, Jose – 0-1 – Garcia Martinez, Silvino – G79 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. a3 Nf6 8. Be2 Be7 9. O-O d6 10. f4 Bd7
1968 Hoogovens – Round 4 – Padevsky, Nikola – 1/2-1/2 – Tal, Mikhail – G45 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 Nf6 7. a3 a6 8. Be2 Be7 9. O-O O-O 10. f4 d6
1968 SWE Ch – Round 9 – Fridh, Anton – 1/2-1/2 – Litsberger, Rune – G25 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. a3 Nf6 7. Be2 Nc6 8. Be3 Be7 9. O-O O-O 10. Qd2 Rd8
1969 Venice – Round 2 – Troianescu, Octav – 0-1 – Matulovic, Milan – G17 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 a6 7. a3 Nf6 8. Be3 Be7 9. O-O O-O 10. f4 d6
40. Olympiad Open 2012 – Round 4.33 – Bologan, Victor – 1-0 – Munoz Santana, Jose Lisandro – G260 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. a3 Be7 9. g4 d6 10. g5 Nd7
40. Olympiad Open 2012 – Round 4.45 – Jayasundara, P A Pamudith Nethsar – 0-1 – Stellwagen, Daniel – G274 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Qc7 6. O-O Nf6 7. Nc3 Nc6 8. a3 Be7 9. Be3 O-O 10. f4 d6
Milaan 1975 – Round 8 – Mariotti, Sergio – 0-1 – Tal, Mikhail – G29 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Be2 Qc7 7. Be3 Nf6 8. a3 Be7 9. f4 d6 10. Nb3 b5
World Blitz 2023 – Round 4.33 – Henriquez Villagra, Cristobal – 1-0 – Uskov, Artem – G229 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. a3 Nf6 8. Be2 Be7 9. f4 d6 10. Qd3 O-O

B49e — Taimanov

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.a3 Be7

Eval: [+0.22]

Les coups candidats

9.O-O — 57.9% (831 parties) →

Ambassadeurs : Tal, Mikhail (4x), Maedler, Juergen, Dr. (4x), Zhang, Henry (4x), Matulovic, Milan (3x), Huynh Lam Binh Nguyen (3x), Alekhine, Alexander (2x), Liberzon, Vladimir M (2x), Caglieri, Osvaldo (2x)

9.f4 — 28.2% (405 parties)

Ambassadeurs : Hirneise, Tobias (6x), Blehm, Pawel (4x), Koepke, Christian (4x), Schoene, Maria (4x), Bellahcene, Bilel (4x), Jansa, Vlastimil (3x), Socko, Bartosz (3x), Melamed, Tatjana (3x)

9.Qd2 — 10.1% (145 parties)

Ambassadeurs : Krausser Hans (2x), Herzog, Klaus (2x), Pogorelov, Ruslan (2x), Soponyai, Andras (2x), Monteiro Rodrigues, Carlos (2x), Camino Carrio, Nicanor (2x), El Ters, Antouan (1x), Estrada, Walter (1x)

9.g4 — 2.3% (33 parties)

Ambassadeurs : Salazar Loor, Sara (2x), Gershnik, Anna (1x), Khurtsidze, Nino (1x), Vydeslaver, Alik (1x), Tunik, Gennady (1x), Puroila, Sippo (1x), Dannehr, Juergen (1x), Oldach, Ehrenfried (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.O-O	9.f4	9.Qd2	9.g4
<1800	93	68%	10%	22%	1%
1800-2200	576	66%	19%	11%	2%
2200-2600	460	41%	52%	3%	3%
2600+	12	25%	58%	17%	—

Évolution par décennie (% des parties)

Décennie	N parties	9.O-O	9.f4	9.Qd2	9.g4
1880s	1	100%	—	—	—
1920s	5	100%	—	—	—
1940s	1	100%	—	—	—
1950s	2	100%	—	—	—
1960s	60	68%	30%	—	—
1970s	34	59%	29%	9%	—
1980s	26	58%	31%	8%	—
1990s	158	68%	18%	9%	2%
2000s	385	57%	27%	12%	2%
2010s	611	53%	32%	11%	3%
2020s	153	61%	25%	8%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.O-O	53%	61%	▲ +7.8%
9.f4	32%	25%	▼ -6.6%
9.Qd2	11%	8%	▼ -2.6%
9.g4	3%	3%	+0.5%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 5 parties
Alekhine, Alexander — 2 parties
Botvinnik, Mikhail — 2 parties

Parties historiques

9.O-O — 57.9% (831 parties)

1886 — Van Foreest, Arnold vs Messemaker, Christiaan — 1/2-1/2 — Utrecht NED
1921 — Cernovsky, Akonzult vs Spielmann, Rudolf — 1-0 — Moravska Ostrava
1922 — Cenni, Giovanni vs Voellmy, Erwin — 1-0 — Milan ITA
1923 — Marotti, Davide vs Vecsey, Zoltan — 1/2-1/2 — Trieste
1926 — Von Holzhausen, Walther vs Antze, Oskar — 1-0 — Hannover GER

9.f4 — 28.2% (405 parties)

1962 — Opocensky, Karel vs Jansa, Vlastimil — 0-1 — Jablonec
1962 — Opocensky, Karel vs Kupka, Slavoj — 1/2-1/2 — Jablonec
1962 — Korchnoi, Viktor vs Khodos, German — 1/2-1/2 — Erevan ch-URS
1962 — Mednis, Edmar J vs Benko, Pal — 1/2-1/2 — New York, NY USA
1963 — Augustin, Josef vs Jansa, Vlastimil — 0-1 — Telnice/Usti

9.Qd2 — 10.1% (145 parties)

1973 — Kuyindzhi, Alexander A vs Averkin, Orest — 1/2-1/2 — Frunze sf ch-URS
1974 — Edwards Thaiso vs Weinstein, Norman — 0-1 — Las Vegas, NV USA
1976 — Ferrer-Lucas, Pepita vs Terry Cuellar, Luis Antonio — 1-0 — Haifa ISR
1981 — Heinatz, Gundula, Dr. vs Jahn, Constanze — 0-1 — Ilmenau
1982 — El Ters, Antouan vs Estrada, Walter — 0-1 — Montevideo URU

9.g4 — 2.3% (33 parties)

1990 — Puroila, Sippo vs Dannehr, Juergen — 0-1 — ?
1995 — Gershnik, Anna vs Khurtsidze, Nino — 0-1 — Halle GER
1996 — Vydeslaver, Alik vs Tunik, Gennady — 1/2-1/2 — Beer Sheba ISR
2004 — Oldach, Ehrenfried vs Schoschies, Claus Peter — 1/2-1/2 — Mecklenburg VP
2006 — Salazar Loor, Sara vs Osorio Pando, Intinusta — 1-0 — Cuenca

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