C97a — Spanish: Closed, Chigorin, 11.d4 Qc7

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte g5 et la paire de fous.

Côté adverse. Les fous enfermés en e7 et c8.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nc3 (Développer Nb1) ; Bg5 (Clouer Nf6).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte c4, un avant-poste en c4 et la paire de fous.

Côté adverse. Le fou enfermé en c1.

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

Plans. ...Bg4 (Développer Bc8, clouer Nf3) ; ...c4 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, g2→h3, c3→d4	● a6→b5, d6→c5, d6→e5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	● c4 (2v0)
Cases faibles	—	—
Centre	● d4 (3v2), ● e4 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bc2	● Bc2 Ok (mob. 3)
Be7		● Be7 Enfermé (mob. 1)
Bc8		● Bc8 Non développé (mob. 6)
Paire de fous	● Oui	● Oui
Non développées	3 (b1, c1, a1)	2 (c8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c3-c4, ● d4-d5	● …c5-c4, ● …d6-d5

Partie
1907 Brno Morava – Round 1.4 – Beck, Antonin – 0-1 – Treybal, Karel – G1 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1924 Moskou ch-URS – Round 1 – Smorodsky, Andrey – 0-1 – Bogoljubow, Efim – G6 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1928 The Hague ol (Men) – Round 13.1 – Wagner, Heinrich – 1-0 – Weenink, Henri – G84 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1930 Swinemuende – Round 2 – Wagner, Heinrich – 1/2-1/2 – Stoltz, Gösta – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1931 Prague CSR – Round 14 – Koenig, Imre – 1/2-1/2 – Michel, Walter – G44 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1932 IFSB Bundesmeisterschaft – Round ? – Eliskases, Erich – 1/2-1/2 – Keemink, John W. – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1934 Ujpest – Round 1 – Steiner, Lajos – 1-0 – Havasi, Kornel – G85 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1937 Kemeri – Round 11 – Keres, Paul – 1-0 – Berg, Terje Jensen – G132 1. e4 e5 2. Nf3 Nf6 3. Bb5 a6 4. Ba4 Nc6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1938 AVRO – Round 1 – Fine, Reuben – 0-1 – Reshevsky, Samuel – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1938 Ljubljana – Round 1 – Steiner, Lajos – 1-0 – Furlani, Ljudmil – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1939 Leningrad ch-URS – Round 4 – Tolush, Alexander – 1/2-1/2 – Lisitsin, Georgy – G33 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1939 Leningrad/Moscow – Round 1 – Konstantinopolsky, Alexander – 1-0 – er-Panov, Vasily – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1940 Copenhagen KS – Round 4 – Lindhard, Jens – 1/2-1/2 – Norman Hansen, Holger – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1940 New York ch-USA – Round 12 – Reshevsky, Samuel – 1-0 – Adams, Weaver – G70 1. Nf3 Nc6 2. e4 e5 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1941 Mar del Plata – Round 8 – Michel, Pascal – 1/2-1/2 – Luckis, Marcos – G70 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1941 New York – Round ? – Horowitz, Albert Israel – 1/2-1/2 – Reshevsky, Samuel – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1942 Chocen – Round ? – Florian, Jaromir – 1/2-1/2 – Hromadka, Karel – G38 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1942 Verenigde Staten m ch-USA – Round 6 – Kashdan, Isaac – 1/2-1/2 – Reshevsky, Samuel – G6 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1943 Sverdlovsk – Round 2 – Konstantinopolsky, Alexander – 1-0 – Zagoriansky, Evgeny – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1944 Gijon – Round ? – Aguilar Rico, Adolfo – 1-0 – Salas Romo, Julio – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. h3 O-O 9. c3 Na5 10. Bc2 c5
1946 Gyor – Round 3 – Florian, Tibor – 1-0 – Toth, Jozsef – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1947 Kassel – Round 3 – Niephaus, Walter – 0-1 – Tautvaisas, Povilas – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1947 Schlechter Memorial – Round 10 – Stoeckl, Ernst – 1/2-1/2 – Gruenfeld, Ernst – G33 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1948 Budapest – Round 1 – Steiner, Lajos – 1-0 – Tomovic, Vasilje – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1948 Budapest – Round 5 – Steiner, Lajos – 1/2-1/2 – Gligorić, Svetozar – G28 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1948 Budapest HUN – Round 15 – Steiner, Lajos – 1-0 – Gereben, Erno – G24 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1948 Saltsjobaden Interzonal – Round 2 – Steiner, Lajos – 0-1 – Szabo, Laszlo – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1949 GBR Ch 36th – Round 5.12 – Broadbent, Reginald – 0-1 – Stone, Joseph – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1949 Heidelberg – Round 8 – Schmid, Lothar – 1-0 – Niephaus, Walter – G29 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1950 Corr Wch1 – Round 1 – Purdy, Cecil J S – 1-0 – Collins Justin – G22 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1950 FRG Ch – Round 15 – Teschner, Rudolf – 1-0 – Rellstab, Ludwig Sr – G38 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1950 FRG Ch 01st – Round 15 – Teschner, Rudolf – 1-0 – Rellstab, Ludwig – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1951 FRG Ch Duesseldorf GER – Round 15 – Schmid, Lothar – 0-1 – Jaeger, Walter – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1951 Travemuende – Round 11 – Schmid, Lothar – 1-0 – Kramer, Haije – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1952 Helsinki olm – Round 1 – Schmid, Leo – 1/2-1/2 – Barcza, Gedeon – G248 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1952 Helsinki olm – Round 1 – Trifunovic, Petar – 0-1 – Skold, Kristian – G250 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1953 GDR Ch Jena GER – Round 5 – Fuchs, Reinhart – 1/2-1/2 – Krause, Kurt – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1953 Hastings ch-BCF – Round 10 – Cook Gonzalez, Catherine Alexand – 0-1 – Abrahams, Gerald – G91 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1953 Mar del Plata – Round 17 – Cuellar Gacharna, Miguel – 1/2-1/2 – Maderna, Carlos – G171 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1954 Mar del Plata – Round 20 – Perez Alcocer, Jose – 0-1 – Cruz, Walter – G152 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1955 Ljubljana – Round 9 – Robatsch, Karl – 1/2-1/2 – Kieninger, Georg – G78 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. h3 O-O
1955 Odessa – Round ? – Gaschibajasov – 1-0 – Chekhover, Vitaly – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 Ilford Premier – Round 2 – Clarke, Peter H – 1-0 – Phillips, Alan – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1957 Dublin zt – Round 17 – Schmid, Leo – 1-0 – Stenborg, Ake – G136 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1957 GBR Ch 44th – Round 7.9 – Mardle, Denis – 1-0 – Pritchard, David Brine – G37 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1958 Kiev Ch – Round 1 – Shianovsky, Vladislav I – 1-0 – Poliak, Evsey – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1958 Munich olm fin-A – Round 7 – Tal, Mikhail – 1/2-1/2 – Sanguineti, Raúl Carlos – G43 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1958 URS-JUG – Round 1 – Suetin, Alexey S – 1-0 – Rabar, Braslav – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1959 Alekhine Memorial – Round 7 – Vasiukov, Evgeni – 1/2-1/2 – Milev, Zdravko – G37 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1959 Berlin Ch – Round 4 – Darga, Klaus – 1/2-1/2 – Hecht, Hans-Joachim – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1959 Dresden – Round 5 – Padevsky, Nikola – 1/2-1/2 – Ivkov, Borislav – G42 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1959 Marianske Lazne – Round 10 – Herink, Miroslav – 1-0 – Kozma, Julius – G73 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1959 Marianske Lazne – Round 2 – Radovici, Corvin – 1-0 – Glass, Eduard – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1959 Riga – Round 1 – Gipslis, Aivars – 1-0 – Niemela, Ilmari Aarne – G44 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1960 CSR Ch – Round 2 – Blatny, Frantisek – 1/2-1/2 – Hort, Vlastimil – G18 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1960 Hastings6061 – Round 1 – Bondarevsky, Igor – 1/2-1/2 – Gligorić, Svetozar – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1960 Sofia ch BUL – Round 11 – Pipkov, Ljuben – 0-1 – Bobotsov, Milko G – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1961 Budapest ch-HUN – Round 1 – Dely, Peter – 1-0 – Molnar, Illes – G92 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1961 URS Ch sf Batumi GEO – Round ? – Gipslis, Aivars – 1/2-1/2 – Gurgenidze, Bukhuti – G53 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1962 It Bamberg GER – Round 8 – Parma, Bruno – 1-0 – Rinder, Gerd – G39 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1962 Wch women – Round 9 – Bikova, E. – 1/2-1/2 – Gaprindashvili, Nona – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1962 Whitby ch-BCF – Round 1 – Cook, Patrick – 0-1 – Abrahams, Gerald – G22 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1963 BRA Ch – Round 2 – Saboya, Fred – 1/2-1/2 – Camara, Helder – G6 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1963 Brno m 6364 – Round 14 – Dokladal P – 0-1 – Zavodny, Zdenek – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1964 Belgrade – Round 11 – Bronstein, David I – 1/2-1/2 – Gligorić, Svetozar – G81 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1964 Buenos Aires – Round 6 – Pilnik, Herman – 0-1 – Eliskases, Erich – G57 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1966 La Habana olm prel – Round 4 – Westerinen, Heikki M.J. – 1-0 – Morales Gonzalez, Emilio – G160 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1966 Mar del Plata – Round 11 – Pilnik, Herman – 1/2-1/2 – Reshevsky, Samuel – G52 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1966 WchT U26 fin-A 13th – Round 4 – Westerinen, Heikki M.J. – 1/2-1/2 – Zuidema, Coen – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1967 Olssons Memorial 6768 – Round 4 – Westerinen, Heikki M.J. – 1-0 – Nilsson, Zandor – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1968 Olympiad Lugano SUI – Round 1 – Avgousti, Petrakis – 0-1 – Kraidman, Yair – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1968 Palma de Mallorca – Round 11 – Westerinen, Heikki M.J. – 0-1 – Ivkov, Borislav – G103 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1969 Hoogovens-B – Round 6 – Kurajica, Bojan – 1-0 – Kozma, Jeno – G36 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5

C97a —

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7

Eval: [+0.48]

Les coups candidats

12.Nbd2 — 82.3% (19047 parties) →

Ambassadeurs : Zielinski, Sergej (214x), Szabo, Vilmos (112x), Lengyel, Bela (98x), Pott, Brian (79x), Ivkov, Borislav (69x), ? (64x), Matanovic, Aleksandar (59x), Van Riemsdijk, Herman C. (54x)

12.d5 — 14.4% (3327 parties) →

Ambassadeurs : Zielinski, Sergej (60x), Gromotka, Harry (20x), Popov, Vladimir Valentinovich (17x), Szabo, Vilmos (17x), Pott, Brian (14x), Kasparov, Garry (12x), Pagerka, Martin (12x), Malyshev, Vladimir Pavlovich (12x)

12.Bg5 — 0.9% (211 parties)

Ambassadeurs : Westerinen, Heikki M.J. (5x), Purdy, Cecil J S (3x), Wagner, Heinrich (2x), Cook, Patrick (2x), Abrahams, Gerald (2x), Weiner, Marc (2x), Veltmann, Alfred (2x), Castaneda, Carlos (2x)

12.b4 — 0.6% (143 parties)

Ambassadeurs : Srbis, Jurica (7x), Huerga Leache, Mikel (4x), Gipslis, Aivars (3x), Vasiukov, Evgeni (3x), Klundt, Klaus (3x), Blazeka, Damjan (3x), Perez Candelario, Manuel (3x), Gurgenidze, Bukhuti (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12.Nbd2	12.d5	12.Bg5	12.b4
<1800	573	75%	19%	3%	0%
1800-2200	7548	79%	18%	1%	0%
2200-2600	8732	83%	15%	0%	1%
2600+	319	80%	18%	0%	0%

Évolution par décennie (% des parties)

Décennie	N parties	12.Nbd2	12.d5	12.Bg5	12.b4
1900s	23	87%	—	4%	—
1910s	11	100%	—	—	—
1920s	56	91%	2%	5%	—
1930s	71	82%	6%	1%	—
1940s	215	86%	1%	1%	—
1950s	741	94%	1%	1%	2%
1960s	949	93%	1%	1%	3%
1970s	850	92%	3%	1%	2%
1980s	1107	93%	4%	0%	1%
1990s	2260	87%	9%	1%	1%
2000s	7230	86%	11%	1%	0%
2010s	8315	77%	20%	1%	0%
2020s	1319	55%	43%	1%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12.Nbd2	77%	55%	▼ -22.3%
12.d5	20%	43%	▲ +22.6%
12.Bg5	1%	1%	-0.1%
12.b4	0%	0%	-0.1%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties
Botvinnik, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Karpov, Aleksandr — 6 parties
Lasker, Emanuel — 5 parties
Alekhine, Alexander — 5 parties
Hou, Yifan — 5 parties
Euwe, Max — 3 parties
Kramnik, Vladimir — 3 parties
Carlsen, Magnus — 2 parties
Fischer, Robert James — 1 partie

Parties historiques

12.Nbd2 — 82.3% (19047 parties)

1906 — Důras, Oldřich vs Chigorin, Mikhail — 0-1 — Nuerenberg GER
1907 — Suechting, Hugo vs Forgacs, Laszlo — 1/2-1/2 — Ostende II
1907 — Maróczy, Géza vs Perlis, Julius — 1-0 — Vienna AUT
1907 — John, Walter vs Loman, Rudolf — 1-0 — Vienna AUT
1907 — Suechting, Hugo vs Perlis, Julius — 1/2-1/2 — Ostende

12.d5 — 14.4% (3327 parties)

1928 — MeyerHorowitzKashd vs Rubinstein, Akiba — 1/2-1/2 — New York, NY USA
1931 — Broadbent, Reginald vs Rhodes, Herbert Gibson — 1-0 — Worcester
1933 — Norcia, Federico vs Michell, Reginald — 1-0 — Folkestone ENG
1934 — Morrison, John Stuart vs Opsahl, Haakon — 1-0 — Toronto CAN
1937 — Mikenas, Vladas vs Keres, Paul Petrovich — 0-1 — Tallinn EST

12.Bg5 — 0.9% (211 parties)

1909 — Cohn, Erich vs Lasker, Edward — 1/2-1/2 — Berlin GER
1922 — Wagner, Heinrich vs Olson, Anton — 1-0 — GER
1924 — Smorodsky, Andrey vs Bogoljubow, Efim — 0-1 — Moskou ch-URS
1926 — Mackenzie, Arthur J vs Mansfield, Comins — 0-1 — Birmingham and Midland Instit
1930 — Wagner, Heinrich vs Stoltz, Gösta — 1/2-1/2 — Swinemuende

12.b4 — 0.6% (143 parties)

1957 — Zagorovsky, Vladimir vs Frantzen, A. — 1-0 — Wch4 sf10 corr
1957 — Nezhmetdinov, Rashid vs Bannik, Anatolij — 1-0 — Kiev UKR
1958 — Suetin, Alexey S vs Rabar, Braslav — 1-0 — Zagreb CRO
1958 — Suetin, Alexey S vs Mikenas, Vladas — 1-0 — Moscow RUS
1958 — Tal, Mikhail vs Sanguineti, Raúl Carlos — 1/2-1/2 — Munich olm fin-A

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