Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d3→e4	● a6→b5, d6→c5, d6→e5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● g4 (2v0)
Cases faibles	—	—
Centre	● e4 (3v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bc2	● Bc2 Ok (mob. 3)
Be7		● Be7 Ok (mob. 1)
Bc8		● Bc8 Non développé (mob. 6)
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	● c3-c4, ● d3-d4	● …c5-c4, ● …d6-d5

C90i — Spanish: Closed, Pilnik, 11.Nbd2 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.d3 Na5 10.Bc2 c5 11.Nbd2 Qc7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture c3-c4).

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

Plans. Nf1 (97 % des parties) ; a4 (2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu sur l'aile dame.

Atouts. Les Noirs s'appuient sur un contrôle dominant de g4.

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

Plans. ...Nc6 (42 % des parties) ; ...Re8 (24 % des parties) ; ...Bd7 (Fou actif (mobilité 7), Développer c8 — 9 % des parties) ; ...Be6 (Fou actif (mobilité 9), Développer c8 — 7 % des parties) ; ...Bb7 (Développer c8 — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1911 Karlsbad – Round 1 – Johner, Paul – 1-0 – Perlis, Julius – G198 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. d3 Qc7
1911 Karlsbad – Round 1 – Perlis, Julius – 0-1 – Duz-Khotimirsky, Fedor Ivanovich – G197 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. d3 O-O
1911 Karlsbad – Round 18 – Teichmann, Richard – 1-0 – Schlechter, Carl – G276 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. d3 Na5 10. Bc2 c5
1912 Stockholm Nordic Ch – Round 3 – Cohn, Erich – 1/2-1/2 – Langborg Hugo W – 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 Na5 9. Bc2 c5 10. d3 Qc7
1918 Kosice – Round 7 – Havasi, Kornel – 0-1 – Réti, Richard – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. Nbd2 O-O
1925 Leningrad – Round 1 – Proskurin, Nikita – 0-1 – Botvinnik, Mikhail – 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. d3 Na5 10. Bc2 c5
1926 Budapest HUN – Round 9 – Yates, Frederic D – 1-0 – Borovski, Z. – 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. d3 O-O
1936 Moskou – Round 1 – Levenfish, Grigory – 1/2-1/2 – Ragozin, Viacheslav – G21 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. d3 O-O
1936 Podebrady – Round ? – Eliskases, Erich – 0-1 – Zinner, Emil – G118 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. O-O d6 8. c3 Na5 9. Bc2 c5 10. Re1 O-O
1936 Podebrady – Round ? – Petrov, Vladimirs – 1-0 – Zinner, Emil – G121 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. d3 O-O
1939 Leningrad ch-URS – Round 17 – Pogrebissky, Iosif – 1/2-1/2 – Panov, Vasily – G140 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. d3 Na5 10. Bc2 c5
1939 Leningrad ch-URS – Round 8 – Dubinin, Peter – 0-1 – Botvinnik, Mikhail – G65 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. d3 Na5 10. Bc2 c5
1939 Leningrad ch-URS – Round 9 – Chekhover, Vitaly – 1-0 – Tolush, Alexander – G74 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. d3 Na5 10. Bc2 c5
1941 New York – Round ? – Hanauer, Milton Loeb – 1-0 – Lasker, Edward – 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. d3 d6 9. c3 Na5 10. Bc2 c5
1942 Moscow Ch – Round 1 – Lilienthal, Andor – 1-0 – Duz-Khotimirsky, Fedor Ivanovich – G49 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. d3 O-O
1944 La Plata Jockey Club – Round 8 – Rebizzo, Cayetano – 1-0 – Graf-Stevenson, Sonja – 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. d3 Na5 10. Bc2 c5
1944 Mar del Plata – Round 11 – Pelikan, Jan – 1-0 – Luckis, Marcos – G90 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. O-O d6 8. c3 Na5 9. Bc2 c5 10. Re1 Qc7
1945 URS-sf – Round 10 – Baturinsky, Victor – 1/2-1/2 – Zagoriansky, Evgeny – G43 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. d3 Na5 10. Bc2 c5
1946 ARG-ESP radio m – Round 1 – Rebizzo, Cayetano – 1/2-1/2 – Abad Garcia, Javier – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1947 Lueneburg – Round 4 – Saemisch, Friedrich – 0-1 – Surmann, Friedrich – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1950 BCF Ch 37th – Round 11 – Broadbent, Reginald – 1-0 – Alexander, Conol Hugh – G54 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1950 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 1-0 – Geller, Efim P – G96 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1950 Schiavno Zdroj – Round 1 – Greenfeld, Alon – 1-0 – Pogats, Jozsef Jr. – G101 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. d3 d6 8. c3 Na5 9. Bc2 c5 10. Re1 Qc7
1952 Havana – Round 8 – Rossolimo, Nicolas – 1-0 – Ortega, Rogelio – G78 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. c3 Na5 8. Bb5 a6 9. Ba4 b5 10. Bc2 c5
1952 Helsinki olm – Round 1 – Pfeiffer, Gerhard – 0-1 – Ojanen, Kaarle S – G171 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. d3 Na5 10. Bc2 c5
1952 POL-ch10 – Round 8 – Szymanski, Aleksander – 1-0 – Witkowski, Stefan – G58 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1952 Rio de Janeiro – Round 15 – Mangini, Jose Henrique de Mello – 1-0 – Madeira de Ley, Manuel – 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 O-O 9. d3 Na5 10. Bc2 c5
1952 YUG Ch – Round 5 – Puc, Stojan – 1/2-1/2 – Djaja, Dragutin – 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. d3 O-O
1952 YUG Ch – Round 7 – Bogdanovic, Rajko – 1/2-1/2 – Djaja, Dragutin – G11 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. d3 O-O
1953 Zagreb – Round 6 – Milic, Borislav – 1-0 – Preinfalk, Anton – G62 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. d3 Na5 10. Bc2 c5
1954 ARG Ch – Round 8 – Rebizzo, Cayetano – 0-1 – Alvarez Martin, Pedro – 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. d3 Na5 10. Bc2 c5
1954 Kiev ch-URS – Round 1 – Bannik, Anatolij – 1-0 – Sokolsky, Alexey – G122 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 Be7 7. O-O O-O 8. Re1 b5 9. Bb3 Na5 10. Bc2 c5
1955 Budapest – Round 1 – Pogats, Jozsef Jr. – 1/2-1/2 – Hacsak, Istvan – G73 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1955 Moskou ch-URS – Round 1 – Geller, Efim P – 1-0 – Kotov Lundqvist, Alex – G94 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1955 Novi Sad – Round 4 – Bertok, Mario Jr. – 1/2-1/2 – Djurasevic, Bozidar – G47 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. Nbd2 Qc7
1955 ROM-FRA – Round 1.2 – Balanel, Ion – 1-0 – Chaude de Silans, Chantal – G2 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. d3 Na5 10. Bc2 c5
1955 URS Team Ch fin – Round 8 – Gipslis, Aivars – 1-0 – Shishov, Mikhail – G32 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. d3 d6 8. c3 Na5 9. Bc2 c5 10. Nbd2 Qc7
1956 Denmark ch corr – Round ? – From, Sigfred – 1-0 – Jensen, Jens Peter – G9 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. d3 Na5 10. Bc2 c5
1956 GBR Ch 43rd – Round 10.4 – Barden, Leonard – 1-0 – Ritson-Morry, William – 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. d3 Na5 10. Bc2 c5
1956 Moscow olm fin-A – Round 8 – Matanovic, Aleksandar – 1-0 – Penrose, Jonathan – G137 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. O-O d6 8. c3 O-O 9. Re1 Na5 10. Bc2 c5
1957 Hamburg Ch – Round 5 – Rellstab, Ludwig Sr – 1-0 – Reber , M Salih Abdulrahman – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. Nbd2 O-O
1958 BRA Ch – Round 7 – Mangini, Jose Henrique de Mello – 1-0 – Prosdocimi, Arrigo – 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. d3 Na5 10. Bc2 c5
1958 Mar del Plata – Round 10 – Letelier Martner, Rene – 0-1 – Sumar, Julio – G77 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. d3 O-O
1958 Mar del Plata – Round 5 – Eliskases, Erich – 1/2-1/2 – Rossetto, Hector – G40 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1958 Munich ol (Men) qual-C – Round 9 – Wade, Robert G – 1-0 – Aldecoa Acha, Luis – 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 Na5 9. Bc2 c5 10. d3 O-O
1958 URS Ch sf – Round ? – Byvshev, Vasily – 1/2-1/2 – Geller, Efim P – G68 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1959 Santiago – Round 9 – Pilnik, Herman – 1-0 – Salas Romo, Julio – G50 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 O-O 9. Re1 Na5 10. Bc2 c5
1960 Budapest zt – Round 6 – Matanovic, Aleksandar – 1-0 – Prameshuber, Alexander – G36 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 d6 7. c3 Be7 8. O-O O-O 9. Re1 Na5 10. Bc2 c5
1960 BUL-ch14 Sofia BUL – Round 16 – Piskov, Kamen – 1/2-1/2 – Milev, Zdravko – G61 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1960 Leipzig olm prel – Round 9 – Farre Mallofre, Miguel – 0-1 – Radovici, Corvin – G328 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 O-O 9. Re1 Na5 10. Bc2 c5
1960 Poland Ch – Round 3 – Balcerowski, Witold – 1/2-1/2 – Podolsky, H. – 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. d3 Na5 10. Bc2 c5
1960 Varna – Round 8 – Fuchs, Reinhart – 1-0 – Karastoichev, Emil – 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. d3 d6 9. c3 Na5 10. Bc2 c5
1961 Debrecen – Round 10 – Pogats, Jozsef Jr. – 1/2-1/2 – Paoli, Enrico – 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. d3 Na5 10. Bc2 c5
1962 BRA Ch – Round 2 – Mangini, Jose Henrique de Mello – 1-0 – Seabra, Geraldo – 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 Na5 9. Bc2 c5 10. d3 O-O
1962 Capablanca Memorial – Round 13 – Matanovic, Aleksandar – 1-0 – Jimenez Zerquera, Eleazar – G131 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1962 Varna olm – Round 1 – Limbos, Paul – 1-0 – Vizantiadis, Lazaros – G60 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1963 Bad Liebenstein – Round 11 – Ciocaltea, Victor – 0-1 – Szily, Jozsef – G76 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1964 BRA Ch – Round 12 – Mangini, Jose Henrique de Mello – 1-0 – Mello, Jose Benicio – G44 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1964 Tel Aviv olm prel – Round 3 – Yepez, Olavo – 1/2-1/2 – Alvarez del Monte, Jose – G114 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1964 WchT U26 11. fin-B – Round 6.2 – Pavlov, Mircea-Sergiu-Aurelian – 1-0 – Nordfjoerd, Sverrir – G27 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1965 Ulan Bator – Round 1 – Nezhmetdinov, Rashid – 1-0 – Zorigt, Damdzinhav – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 Be7 7. O-O O-O 8. Re1 b5 9. Bb3 Na5 10. Bc2 c5
1966 Oberhausen ol women – Round 6 – Zatulovskaya, Tatiana – 1-0 – Polakova Marta – G31 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. c3 O-O 9. Re1 Na5 10. Bc2 c5
1966 Sunderland ch-BCF – Round 11 – Lees, David – 1-0 – Ansell, John – G100 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. d3 Na5 10. Bc2 c5
1967 Harrachov – Round 1 – Krantz, Kjell – 0-1 – Tompa, Janos – G98 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. d3 Na5 10. Bc2 c5
1968 Havirov – Round 9 – Radovici, Corvin – 0-1 – Smetana, Jaroslav – G33 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
1968 It Buesum GER – Round 9 – Medina-Garcia, Antonio – 0-1 – Pollak, Georg – G42 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. d3 Na5 10. Bc2 c5
Amber-rapid 5th 1996 – Round 2 – Polgar, Judit – 1-0 – Xie, Jun – G7 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d3 d6 9. c3 Na5 10. Bc2 c5
FIDE WCh KO 2000 – Round 3.5 – Movsesian, Sergei – 0-1 – Ehlvest, Jaan – G35 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. d3 Na5 10. Bc2 c5

C90i — Closed, Pilnik (1911)

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.d3 Na5 10.Bc2 c5 11.Nbd2 Qc7

Les coups candidats

12.Nf1 — 96.4% (835 parties)

Ambassadeurs : Kopera, Michal (4x), Mangini, Jose Henrique de Mello (3x), Brodsky, Michail (3x), Geller, Efim P. (3x), Tancsa, Robert (3x), Schnegg, Anna-Lena (3x), Mangei, Jasmin (3x), Nakhimovskaya, Zara (2x)

12.h3 — 1.7% (15 parties)

Ambassadeurs : Ciocaltea, Victor (1x), Szily, Jozsef (1x), Albert Benson (1x), Basil Jobin (1x), Pokorna, Renata (1x), Theissl Pokorna, Regina (1x), Martsynovskaya, Marina (1x), Milliet, Sophie (1x)

12.a4 — 0.8% (7 parties)

Ambassadeurs : Mangini, Jose Henrique de Mello (1x), Prosdocimi, Arrigo (1x), Bertok, Mario Jr. (1x), Djurasevic, Bozidar (1x), Juilfs, Galina (1x), Dimitrova, Rositsa (1x), Kraft, Hans (1x), Petzold, Hilmar (1x)

12.b3 — 0.3% (3 parties)

Ambassadeurs : Versteeg, Henny (1x), te Velde (1x), Gonzalez Custodio, Rafael (1x), Arrieta, Marcio (1x), Nalbaru, Marin-Ciprian (1x), Vasile, Claudiu-Daniel (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12.Nf1	12.h3	12.a4	12.b3
<1800	69	93%	3%	1%	—
1800-2200	389	97%	2%	0%	1%
2200-2600	262	98%	1%	1%	—
2600+	3	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	12.Nf1	12.h3	12.a4	12.b3
1950s	45	96%	—	4%	—
1960s	44	95%	2%	—	2%
1970s	17	94%	6%	—	—
1980s	25	100%	—	—	—
1990s	131	98%	1%	1%	1%
2000s	219	97%	1%	1%	—
2010s	336	96%	3%	1%	0%
2020s	49	96%	2%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12.Nf1	96%	96%	+0.4%
12.h3	3%	2%	▼ -0.6%
12.a4	1%	0%	▼ -0.6%
12.b3	0%	0%	-0.3%

Joueurs célèbres

Champions du monde dans cette position

Hou, Yifan — 1 partie

Parties historiques

12.Nf1 — 96.4% (835 parties)

1950 — Broadbent, Reginald vs Alexander, Conol Hugh — 1-0 — Buxton
1950 — Broadbent, Reginald vs Alexander, Hugh — 1-0 — Buxton
1950 — Greenfeld, Alon vs Pogats, Jozsef Jr. — 1-0 — Schiavno Zdroj
1950 — Boleslavsky, Isaac vs Geller, Efim P. — 1-0 — Moskou ch-URS
1952 — Puc, Stojan vs Djaja, Dragutin — 1/2-1/2 — Belgrade SRB

12.h3 — 1.7% (15 parties)

1963 — Ciocaltea, Victor vs Szily, Jozsef — 0-1 — Bad Liebenstein GER
1973 — Albert Benson vs Basil Jobin — 0-1 — Montreal CAN
1997 — Pokorna, Renata vs Theissl Pokorna, Regina — 1-0 — Topolcianky
2000 — Buttner, Natalia vs Pitonakova, Adela — 0-1 — Oropesa del Mar ESP
2004 — Martsynovskaya, Marina vs Milliet, Sophie — 0-1 — Val d'Isere FRA

12.a4 — 0.8% (7 parties)

1955 — Bertok, Mario Jr. vs Djurasevic, Bozidar — 1/2-1/2 — Novi Sad SRB
1958 — Mangini, Jose Henrique de Mello vs Prosdocimi, Arrigo — 1-0 — Rio de Janeiro BRA
1991 — Juilfs, Galina vs Dimitrova, Rositsa — 0-1 — Bankia
2003 — Kraft, Hans vs Petzold, Hilmar — 1/2-1/2 — Finsterbergen
2007 — Soraas, Torben vs Sarakauskas, Gediminas — 1/2-1/2 — Tromso NOR

12.b3 — 0.3% (3 parties)

1969 — Versteeg, Henny vs te Velde — 1-0 — ?
1997 — Gonzalez Custodio, Rafael vs Arrieta, Marcio — 0-1 — San Jose
2014 — Nalbaru, Marin-Ciprian vs Vasile, Claudiu-Daniel — 0-1 — Calimanesti

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