D42c — QGD: Semi-Tarrasch, 6.e3 Nc6 7.Bd3 Be7 8.O-O O-O

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3 Be7 8.O-O O-O * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte e4….

Atouts. Les Blancs s'appuient sur une majorité de pions à l'centre (2 contre 1), les cases fortes e4, b5 et e5, un fou actif en d3, la paire de fous et la colonne semi-ouverte c.

Côté adverse. Le fou enfermé en c8.

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

Plans. Bd2 (Développer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte d5.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile_dame (3 contre 2), les cases fortes b4 et d5, un avant-poste en d5, un fou actif en e7, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Le fou enfermé en c1.

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

Plans. ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)) ; ...c4 (Rupture) ; ...e5 (Rupture) ; ...f6 (Rupture) ; ...f5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v0), ● b5 (2v0), ● e5 (2v1)	● b4 (3v0), ● d5 (2v1)
Cases faibles	—	—
Centre	● e4 (2v0), ● e5 (2v1)	● d5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bd3	● Bd3 Actif (mob. 10)
Be7		● Be7 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
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	semi-ouvert
Ruptures	● e3-e4	● …c5-c4, ● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
1936 Moskou – Round 1 – Flohr, Salo – 1/2-1/2 – Levenfish, Grigory – G29 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nf6 10. dxc5 Bxc5
1936 Moskou – Round 1 – Riumin, Nikolai – 1-0 – Levenfish, Grigory – G5 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qh5
1937 Tbilisi ch-URS – Round 1 – Kan, Ilya A – 1-0 – Levenfish, Grigory – G29 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qh5
1937 URS-ch10 – Round ? – Kan, Ilya A – 1-0 – Levenfish, Grigory – G5 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qh5
1938 URS Ch, semi final – Round 1 – Chekhover, Vitaly – 1-0 – Bondarevsky, Igor – G8 1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. d4 e6 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 Bf6
1938 URS Ch, semi final – Round 1 – Romanovsky, Pjotr – 1-0 – Ilyin Zhenevsky, Alexander – G30 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 f5 10. Qe2 Kh8
1938 URS Ch, semi final – Round 1 – Tolush, Alexander – 1/2-1/2 – Bondarevsky, Igor – G3 1. c4 Nf6 2. d4 e6 3. Nc3 d5 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 b6 10. Nxd5 exd5
1939 Leningrad/Moscow – Round 6 – Kan, Ilya A – 1/2-1/2 – Levenfish, Grigory – G42 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qh5
1946 Groningen – Round 4 – Vidmar, Marjeta – 1/2-1/2 – Kotov Lundqvist, Alex – G21 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 c5 5. Nc3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. a3 b6 10. Qe2 Bb7
1946 Londen I – Round 4 – List, Paul – 1/2-1/2 – Fairhurst, William – G14 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 Bf6
1948 Buenos Aires/La Plata it – Round 1 – Najdorf, Miguel – 1-0 – Acharam Medina, Sebastian Alejandro – G7 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. e3 O-O 6. Bd3 c5 7. cxd5 Nxd5 8. O-O Nc6 9. Qe2 Bf6 10. dxc5 Nxc3
1948 New York – Round 1 – Najdorf, Miguel – 1/2-1/2 – Horowitz, Albert Israel – G2 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Nf6
1951 World chJ U20 1st – Round 8.5 – Ivkov, Borislav – 1-0 – Harris, Peter A – G24 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Ndb4
1952 Hoogovens – Round 9 – Bouwmeester, Hans – 1/2-1/2 – Euwe, Max – G41 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Ndb4
1952 Mar del Plata – Round 17 – Wexler, Bernardo – 1/2-1/2 – Pinzon Solis, Felipe – G124 1. d4 d5 2. c4 c5 3. cxd5 Nf6 4. Nc3 Nxd5 5. e3 Nc6 6. Nf3 e6 7. Bd3 Be7 8. O-O O-O 9. Qe2 Ndb4 10. Bb1 cxd4
1954 Kiev ch-URS – Round 1 – Bannik, Anatolij – 1/2-1/2 – Kholmov, Ratmir D – G38 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 Nf6 10. dxc5 Bxc5
1954 Kiev ch-URS – Round 1 – Furman, Slavomir – 1-0 – Nezhmetdinov, Rashid – G34 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. Nf3 c5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 Bf6
1954 Montevideo – Round 5 – Najdorf, Miguel – 1-0 – Alonzo Salomon, Jose Luis – G54 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 b6 10. Qc2 g6
1954 Stockholm – Round 2 – Horberg, Bengt-Eric – 0-1 – Averbakh, Yuri L – G12 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. Qe2 Ncb4 10. Be4 cxd4
1955 Novi Sad – Round 16 – Djurasevic, Bozidar – 1/2-1/2 – Janosevic, Dragoljub – G117 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Ndb4
1956 Leningrad ch-URS – Round 1 – Taimanov, M. – 1/2-1/2 – Kortchnoi, V. – G19 1. c4 Nf6 2. Nc3 c5 3. Nf3 d5 4. cxd5 Nxd5 5. e3 e6 6. d4 Be7 7. Bd3 Nc6 8. O-O O-O 9. Re1 Nf6 10. a3 a5
1956 YUG-GER – Round 1.7 – Heinicke, Herbert – 1/2-1/2 – Rabar, Braslav – G6 1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5 5. e3 e6 6. d4 Nc6 7. Bd3 Be7 8. O-O O-O 9. Ne4 cxd4 10. exd4 b6
1958 Portoroz Interzonal – Round 7 – Olafsson, Fridrik – 0-1 – Neikirkh, Oleg – G61 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. e3 c5 5. d4 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 Bf6
1958 UKR Ch – Round 7 – Nikolaevsky, Yuri V – 1-0 – Zamikhovsky, Abram – G30 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. e3 c5 6. Bd3 Nc6 7. Nf3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 b6
1959 Krakow – Round 11 – Witkowski, Stefan – 1/2-1/2 – Brzozka, Stefan – G37 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. e3 Be7 5. Nf3 O-O 6. Bd3 c5 7. O-O Nc6 8. cxd5 Nxd5 9. Ne4 cxd4 10. exd4 h6
1959 Tbilisi ch-URS – Round 1 – Geller, Efim P – 1/2-1/2 – Krogius, Nikolai V – G1 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 Nxd5 5. Nf3 c5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Nxd5 exd5
1959 Zuerich – Round 1 – Keres, Paul Petrovich – 1/2-1/2 – Tal, Mikhail – G5 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qh5
1960 Budapest – Round 1 – Szabo, Ladislav – 1-0 – Portisch, Lajos – G2 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. Qe2 cxd4 10. exd4 Ndb4
1960 Leningrad ch-URS – Round 2 – Averbakh, Yuri L – 1/2-1/2 – Krogius, Nikolai V – G11 1. c4 e6 2. d4 Nf6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qd8
1960 Ljubljana – Round 6 – Matulovic, Milan – 1-0 – Kozomara, Vlado – G49 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 b6
1960 Santa Fe – Round 1 – Szabo, Ladislav – 1/2-1/2 – Korchnoi, Viktor – G7 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. Qe2 Ndb4 10. Be4 f5
1960 Varna Varna BUL – Round 5 – Milev, Zdravko – 0-1 – Krogius, Nikolai V – G20 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 Ncb4 10. Bc4 cxd4
1961 Baden-Vienna – Round 1 – Averbakh, Yuri L – 1/2-1/2 – O'Kelly de Galway, Alberic – G2 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qh5
1961 Budapest-Leningrad m – Round 1.8 – Florian, Tibor – 1/2-1/2 – Usov, Dmitry E. – G4 1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 Nxc3 10. bxc3 b6
1961 Rostov on Don – Round 9 – Bobekov, Radko – 1-0 – Bondarevsky, Igor – G18 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Ndb4
1961 Utrecht – Round 2 – Langeweg, Kick – 1/2-1/2 – O'Kelly, Albéric de Galway – G12 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Be4 Nxc3
1962 Hoogovens – Round 5 – Kottnauer, Cenek – 1/2-1/2 – Bisguier, Arthur B – G27 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 Nxc3 10. bxc3 b6
1962 Kiev (Ukraine) – Round 5 – Zurakhov, Vladlen Y – 1/2-1/2 – Zamikhovsky, Abram – G6 1. c4 e6 2. d4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. Nf3 c5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 b6
1962 LAT Ch – Round ? – Zilber, Israel – 1/2-1/2 – Klovans, Janis – G28 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. e3 O-O 6. Bd3 c5 7. cxd5 Nxd5 8. O-O Nc6 9. dxc5 Nxc3 10. bxc3 Qa5
1962 Sarajevo – Round 9 – Portisch, Lajos – 1-0 – Kozomara, Vlado – G48 1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. Nf3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. Re1 a6 10. Be4 Bf6
1963 Capablanca Memorial – Round 12 – Uhlmann, Wolfgang – 1/2-1/2 – Pachman, Ludek – G112 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Be4 Nxc3
1963 Leningrad ch-URS – Round 1 – Furman, Slavomir – 1-0 – Bondarevsky, Igor – G45 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. Nf3 c5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 Nxc3 10. bxc3 Qc7
1964 Amsterdam Interzonal – Round 13 – Pachman, Ludek – 1-0 – Porath, Yosef – G122 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Nxd5 Qxd5
1964 Capablanca Memorial – Round 5 – Udovcic, Mijo – 1/2-1/2 – O'Kelly, Albéric de Galway – G52 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. Qe2 cxd4 10. exd4 Ndb4
1964 Capablanca Memorial – Round 6 – Bielicki, Carlos – 0-1 – Pachman, Ludek – G61 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 b6
1964 EU Team Ch sf – Round 2.7 – Minev, Nikolay N – 1/2-1/2 – Dely, Peter – G27 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 b6 10. Qc2 g6
1964 Kiev ch-URS – Round 1 – Kortchnoi, V. – 1-0 – Tal, Michael – G20 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. a3 b6 10. Qc2 g6
1964 Malaga – Round 5 – Lengyel, Laszlo – 1/2-1/2 – Robatsch, Karl – G22 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. Re1 b6 10. Be4 Bb7
1964 Tel Aviv olm fin-A – Round 1 – Milev, Zdravko – 1/2-1/2 – Lengyel, Levente – G7 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Ncb4
1964 Tel Aviv olm fin-A – Round 3 – Milev, Zdravko – 1/2-1/2 – Bisguier, Arthur B – G51 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. Re1 Nxc3 10. bxc3 b6
1964 Tel Aviv olm fin-A – Round 6 – Benko, Pal – 1/2-1/2 – Porath, Yosef – G126 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 b6
1964 Zinnowitz Zinnowitz GER – Round 1 – Popov, Luben – 1/2-1/2 – Dely, Peter – G1 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Nxd5 exd5
1965 Budapest2 – Round 6 – Bilek, Istvan – 1/2-1/2 – Krogius, Nikolai V – G33 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Ne4 cxd4 10. exd4 b6
1965 Capablanca Memorial – Round 2 – Cobo Arteaga, Eldis – 0-1 – Robatsch, Karl – G17 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 O-O 8. O-O Nc6 9. a3 b6 10. Qe2 Bb7
1965 HUN-ch21 – Round 1 – Liptay, Laszlo Dr. – 1/2-1/2 – Forintos, Gyozo V – G13 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nf6 10. dxc5 Bxc5
1965 Leipzig Inter-1 – Round 14 – Uhlmann, Wolfgang – 1/2-1/2 – Kavalek, Lubomir – G52 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Nxd5 exd5
1965 Marianske Lazne – Round 13 – Uhlmann, Wolfgang – 1/2-1/2 – Robatsch, Karl – G59 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 O-O 8. O-O Nc6 9. Re1 b6 10. Nxd5 exd5
1965 Noordwijk – Round 7 – Bobotsov, Milko G – 1/2-1/2 – Botvinnik, Mikhail – G24 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Nxd5 exd5
1965 SWE Ch – Round 12 – Jansson, Borje – 0-1 – Kinnmark, Ove – G38 1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. e3 d5 5. cxd5 Nxd5 6. d4 Be7 7. Bd3 O-O 8. O-O Nc6 9. Nxd5 exd5 10. dxc5 h6
1965 Tbilisi – Round 1 – Soos, Bela – 0-1 – Jansa, Vlastimil – G31 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 b6
1965 Zagreb – Round 15 – Udovcic, Mijo – 1/2-1/2 – Ivkov, Borislav – G150 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 Ncb4 10. Nxd5 exd5
1966 Asztalos Memorial 9th – Round 9 – Flesch, Janos – 1/2-1/2 – Bilek, Istvan – G45 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. e3 d5 5. d4 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. a3 Nf6 10. dxc5 Bxc5
1966 Palma de Majorca ESP – Round 13 – Portisch, Lajos – 1/2-1/2 – Tal, Mikhail – G21 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 b6 10. Qc2 g6
1966 Reykjavik – Round 10 – Palmason, Gudmundur – 1-0 – Kieninger, Georg – G51 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 Nf6 10. a3 Kh8
1966 URS Team Ch – Round ? – Kots, Yuri I – 0-1 – Osnos, Viatcheslav – G109 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 d5 5. Nc3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. Qe2 b6 10. Nxd5 exd5
1966 Venice – Round ? – Antoshin, Vladimir S – 1/2-1/2 – Lengyel, Levente – G13 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. a3 Bb7
1967 Hoogovens – Round 13 – Larsen, Benjamin Holsko – 1-0 – Robatsch, Karl – G87 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Be7 7. Bd3 Nc6 8. O-O O-O 9. Qe2 Ndb4 10. Be4 cxd4
1967 IBM – Round 3 – Moiseev, Oleg – 1/2-1/2 – Pachman, Ludek – G16 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Re1 b6 10. Ne4 cxd4
1967 Palma de Mallorca – Round 12 – Toran Albero, Roman – 1-0 – Donner, Jan-Hein – G90 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 b6 10. Qc2 g6
1967 URS Team Ch – Round 1 – Peterson, Andrejs – 1/2-1/2 – Roizman, Abram Y – G5 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. Qe2 b6 10. a3 cxd4
1968 Palma de Mallorca – Round 1 – Larsen, Benjamin Holsko – 0-1 – Korchnoi, Viktor – G2 1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5 5. e3 e6 6. d4 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 Bf6
1968 Palma de Mallorca – Round 14 – Larsen, Bent Ravn – 0-1 – Korchnoi, Viktor – G122 1. c4 c5 2. Nc3 Nf6 3. Nf3 d5 4. cxd5 Nxd5 5. e3 e6 6. d4 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 Bf6
1969 Villa Gesell tt – Round 5 – Ocampo Vargas, Raul – 1/2-1/2 – Emma, Jaime – G26 1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 Bf6
6. Sinquefield Cup 2018 – Round 5.1 – Carlsen, Magnus – 1/2-1/2 – So, Wesley – G21 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. Qe2 b6 10. Rd1 cxd4
FIDE World Cup 2015 – Round 5.1 – Svidler, Peter – 1/2-1/2 – Wei, Yi – G398 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. e3 e6 5. d4 d5 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Bd7
GCT Blitz YourNextMove 2017 – Round 4.3 – So, Wesley – 0-1 – Vachier-Lagrave, Maxime – G18 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. e3 e6 5. d4 d5 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. Nxd5 Qxd5 10. e4 Qd6
Tata Steel India Blitz 2019 – Round 13.2 – Carlsen, Magnus – 1-0 – Harikrishna, Pentala – G61 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. Qe2 cxd4 10. exd4 Nf6
World Blitz 2016 – Round 1.23 – Melkumyan, Hrant – 0-1 – Ganguly, Surya Shekhar – G15 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c5 5. e3 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. Be4 cxd4 10. exd4 Nf6
World Blitz 2022 – Round 15.58 – Sargissian, Gabriel – 1-0 – Tsaruk, Maksim – G820 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. e3 c5 6. Bd3 Nc6 7. Nf3 Be7 8. O-O O-O 9. a3 Nxc3 10. bxc3 b6

D42c — Semi-Tarrasch

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3 Be7 8.O-O O-O

Les coups candidats

9.a3 — 61.1% (422 parties)

Ambassadeurs : Ribli, Zoltan (9x), Averbakh, Yuri L (9x), Portisch, Lajos (7x), Bisguier, Arthur B (6x), Farago, Ivan (6x), Korchnoi, Viktor (5x), Furman, Slavomir (5x), Olafsson, Fridrik (4x)

9.Re1 — 15.5% (107 parties)

Ambassadeurs : Pachman, Ludek (5x), Uhlmann, Wolfgang (3x), Bisguier, Arthur B (3x), Popov, Luben (3x), Taimanov, M. (2x), Durasevic, Bozidar (2x), Kholmov, Ratmir D (2x), Robatsch, Karl (2x)

9.Nxd5 — 9.4% (65 parties)

Ambassadeurs : Levenfish, Grigory (4x), Kan, Ilya A (3x), Tukmakov, Vladimir B (3x), Bewersdorff, Oliver (3x), Averbakh, Yuri L (2x), Krogius, Nikolai V (2x), Tal, Mikhail (2x), Eingorn, Vereslav S (2x)

9.Qe2 — 8.8% (61 parties)

Ambassadeurs : Najdorf, Miguel (3x), Szabo, Laszlo (3x), Szabo, Ladislav (2x), Ivkov, Borislav (2x), Udovcic, Mijo (2x), Milev, Zdravko (2x), Korchnoi, Viktor (2x), Carlsen, Magnus (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.a3	9.Re1	9.Nxd5	9.Qe2
<1800	8	62%	12%	12%	—
1800-2200	54	52%	19%	9%	15%
2200-2600	344	63%	15%	11%	6%
2600+	48	58%	6%	6%	19%

Évolution par décennie (% des parties)

Décennie	N parties	9.a3	9.Re1	9.Nxd5	9.Qe2
1930s	10	60%	—	40%	—
1940s	6	50%	—	—	50%
1950s	38	55%	18%	3%	18%
1960s	96	54%	26%	3%	14%
1970s	62	71%	18%	5%	2%
1980s	91	66%	13%	14%	2%
1990s	72	64%	17%	8%	3%
2000s	98	56%	28%	10%	2%
2010s	153	59%	7%	12%	14%
2020s	65	68%	5%	11%	15%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.a3	59%	68%	▲ +8.2%
9.Re1	7%	5%	▼ -1.9%
9.Nxd5	12%	11%	▼ -1.0%
9.Qe2	14%	15%	▲ +1.7%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 7 parties
Karpov, Aleksandr — 3 parties
Carlsen, Magnus — 3 parties
Smyslov, Vladimir — 2 parties
Botvinnik, Mikhail — 1 partie
Euwe, Max — 1 partie
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie
Gukesh D — 1 partie

Parties historiques

9.a3 — 61.1% (422 parties)

1936 — Flohr, Salo vs Levenfish, Grigory — 1/2-1/2 — Moscow RUS
1936 — Flohr, Salo vs Levenfish, Grigory — 1/2-1/2 — Moskou
1937 — Levenfish, Grigory vs Ilyin Zhenevsky, Alexander — 1-0 — Tbilisi ch-URS
1938 — Tolush, Alexander vs Bondarevsky, Igor — 1/2-1/2 — Leningrad RUS
1938 — Chekhover, Vitaly vs Bondarevsky, Igor — 1-0 — Leningrad RUS

9.Re1 — 15.5% (107 parties)

1954 — Bannik, Anatolij vs Kholmov, Ratmir D — 1/2-1/2 — Kiev ch-URS
1954 — Lisitsin, Georgy vs Bannik, Anatolij — 1/2-1/2 — Kiev ch-URS
1956 — Taimanov, M. vs Kortchnoi, V. — 1/2-1/2 — Leningrad ch-URS
1956 — Lipnitsky, Isaac vs Serebrisky, Alexander S — 1-0 — Kiev UKR
1958 — Taimanov, M. vs Durasevic, Bozidar — 1/2-1/2 — Yugoslavia

9.Nxd5 — 9.4% (65 parties)

1936 — Riumin, Nikolai vs Levenfish, Grigory — 1-0 — Moskou
1937 — Kan, Ilya A vs Levenfish, Grigory — 1-0 — Tbilisi GEO
1937 — Kan, Ilya A vs Levenfish, Grigory — 1-0 — Tbilisi ch-URS
1939 — Kan, Ilya A vs Levenfish, Grigory — 1/2-1/2 — Leningrad RUS
1959 — Keres, Paul Petrovich vs Tal, Mikhail — 1/2-1/2 — Zurich SUI

9.Qe2 — 8.8% (61 parties)

1948 — Najdorf, Miguel vs Acharam Medina, Sebastian Alejandro — 1-0 — Buenos Aires/La Plata
1948 — Najdorf, Miguel vs Horowitz, Albert Israel — 1/2-1/2 — New York, NY USA
1948 — Najdorf, Miguel vs Albert, Horowitz Israel — 1/2-1/2 — New Orleans-Wch
1951 — Ivkov, Borislav vs Harris, Peter A — 1-0 — Birmingham/Coventry
1951 — Kramer, Haije vs Kieninger, Georg — 1/2-1/2 — Beverwijk NED

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