Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c3, ● c4	—
Pions isolés	● a3	—
Arriérés	—	—
Chaînes	● f2→e3, c3→d4, e3→d4	● b6→c5, a7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (3v1), ● e5 (1v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	—

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 2)
Paire de fous	● Oui	Non
Non développées	5 (● g1, ● c1, ● f1, ● a1, ● h1)	4 (● b8, ● 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	mobile
Ruptures	● d4-d5	● …d7-d5, ● …e6-e5

E26c — Nimzo-Indian: Saemisch, O’Kelly Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3 b6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bd3 (Fou actif (mobilité 8), Développer f1 — 73 % des parties) ; Ne2 (Développer g1 — 16 % des parties) ; Nf3 (Développer g1 — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bb7 (Fianchetto, fou sur la grande diagonale — 64 % des parties) ; ...Nc6 (Développer b8 — 20 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 8 % des parties) ; ...Ba6 (Développer c8 — 5 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
? 2000 – Round ? – Russell Chege – 0-1 – Gulko, Boris – G37 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1945 Moskou ch-URS – Round 1 – Kotov Lundqvist, Alex – 1/2-1/2 – Alatortsev, Vladimir N. – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 e5 10. O-O d6
1946 Treybal Memorial – Round 10 – Najdorf, Miguel – 1-0 – Rohacek, Ivan – G53 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Nc6 8. Nf3 Ba6 9. e4 cxd4 10. cxd4 d5
1949 Venice – Round 3 – Gligorić, Svetozar – 1/2-1/2 – Mueller, Hans – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 d6 9. Ne2 Nc6 10. O-O Qe7
1950 Bled – Round 6 – Najdorf, Miguel – 1-0 – Matanovic, Aleksandar – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. Nf3 O-O 9. Qc2 d5 10. cxd5 exd5
1950 Dubrovnik olm – Round 1 – Mastichiadis, Fotis – 0-1 – O'Kelly, Albéric de Galway – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1950 Dubrovnik olm – Round 10 – Castillo Bermudez, Manuel – 0-1 – O'Kelly de Galway, Alberic – G143 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1950 Dubrovnik olm – Round 12 – Mastichiadis, Fotis – 0-1 – Euwe, Max – G172 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1950 Dubrovnik olm – Round 8 – Gligorić, Svetozar – 1/2-1/2 – Beni, Alfred – G104 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. O-O d6
1950 Schiavno Zdroj – Round 1 – Simagin, Vladimir – 1/2-1/2 – Foltys, Jan – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 d6 10. O-O Nd7
1951 Marianske Lazne zt – Round 1 – Stoltz, Gabriel – 0-1 – Pachman, Ludek – G6 1. c4 e6 2. Nc3 Nf6 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. a4 d6
1951 Paignton Premier – Round 1 – Goodman, John Bertram – 0-1 – Barden, Leonard – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 O-O 9. e4 Ne8 10. Be3 d6
1951 Paignton Premier – Round 5 – Donner, Jan-Hein – 0-1 – Euwe, Max – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. Nf3 Ne4 9. O-O f5 10. Bb2 O-O
1951 Schlechter Memorial – Round ? – Steiner, Herman – 1/2-1/2 – Mueller, Hans – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 d6 9. Ne2 Nc6 10. e4 Nd7
1951 Vienna 5152 – Round 6 – Kovacs, MG. – 1-0 – Matanovic, Aleksandar – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1951 World chJ U20 1st – Round 10.6 – Selzer, Edgar – 0-1 – Ivkov, Borislav – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 O-O 9. Ne2 Nc6 10. e4 Ne8
1952 Helsinki olm – Round 1 – Doerner, Charles – 0-1 – German, Eugenio – G65 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. f3 O-O 8. e4 Ne8 9. Be3 d6 10. Ne2 Nc6
1952 Helsinki olm – Round 1 – Enevoldsen, Harald – 1/2-1/2 – Hooper, David – G64 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. O-O Rc8
1952 Helsinki olm – Round 1 – Szabo, Ladislav – 1-0 – German, Eugenio – G8 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1952 Hollywood – Round 1 – Pafnutieff, Vladimir – 0-1 – Gligorić, Svetozar – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. O-O Ba6
1952 Hungary Ch – Round 11 – Koberl, Ferenc – 1/2-1/2 – Pogats, Jozsef Jr. – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. O-O Rc8
1952 POL-ch10 – Round 10 – Boleslawski Zbigniew – 1-0 – Gawlikowski, Stanislaw – G70 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 d6 9. Ne2 Nc6 10. O-O O-O
1952 Rio de Janeiro – Round 9 – Rabar, Braslav – 1-0 – Szentkiralyi Toth, Vince – G47 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1952 URS ch sf – Round 3 – Koblencs, Alexander – 1/2-1/2 – Kan, Ilya A – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Nc6 8. Ne2 Ba6 9. e4 O-O 10. Bg5 h6
1953 Bucharest – Round 11 – Szabo, Ladislav – 0-1 – Sliwa, Bogdan – G104 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 Rc8 10. e4 d6
1953 Bucharest – Round 15 – Spassky, Boris Vasily – 1/2-1/2 – O'Kelly de Galway, Alberic – G142 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1953 Budapest HUN – Round ? – Sallay, Roland – 1-0 – Flesch, Janos – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. O-O Na5
1953 URS chT sf – Round ? – Antoshin, Vladimir S – 1-0 – Poliak, Denis – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 O-O 9. e4 Ne8 10. d5 f5
1954 Amsterdam olm – Round 1 – Kelly, Terry – 0-1 – Andersen, Borge – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. Nf3 O-O 9. O-O Be4 10. Ng5 Bxd3
1954 DDR Ch 05th – Round 12 – Kuhn, Paul – 1-0 – Fuchs, Reinhart – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 Na5 10. e4 d6
1954 Olympiad final A – Round 1 – Milev, Zdravko – 0-1 – Olafsson, Fridrik – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1954 Olympiad final B – Round 1 – Beni, Alfred – 0-1 – O'Kelly, Albéric de Galway – G3 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 Rc8 10. e4 Na5
1954 Olympiad final B – Round 12 – Cs. Kovacs, Laszlo – 1/2-1/2 – Noradounghian, Georges – G74 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. e4 d6 10. Ne2 e5
1954 Olympiad prel IV – Round 1 – Neu, Alexandre – 0-1 – O'Kelly, Albéric de Galway – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. Nf3 d6 9. O-O Nc6 10. e4 e5
1954 Prague zt – Round 18 – Balanel, Ion – 0-1 – Olafsson, Fridrik – G101 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. e4 cxd4 10. cxd4 Nxd4
1955 Budapest – Round 1 – Somogyi, Istvan – 0-1 – Barczay, Laszlo – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 O-O 9. Ne2 d6 10. O-O Nc6
1955 Hastings5556 – Round 6 – Diez del Corral, Jesus – 0-1 – Persitz, Raaphi – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. Nf3 d6 9. O-O Qd7 10. Re1 Nc6
1955 Long Beach US-open – Round 10 – Dake, Arthur William – 1/2-1/2 – Turner, Abe J – G54 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 O-O 9. Ne2 Nc6 10. e4 Ne8
1955 Poland ch13 – Round 5 – Kwapisz, Stanislaw – 1-0 – Sliwa, Bogdan – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 Na5 10. e4 Ba6
1955 URS Ch sf – Round 1 – Cherepkov, Alexander V – 1/2-1/2 – Kholmov, Ratmir D – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1955 URS Ch sf – Round 1 – Vladimirov, Boris T – 0-1 – Kholmov, Ratmir D – G17 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1956 BCF Major Open – Round 4 – Richards, DJ. – 0-1 – Cafferty, Bernard – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Bb7 8. Ng3 O-O 9. Bd3 Nc6 10. e4 Ne8
1956 BCF Major Open – Round 9 – Banda Howard – 0-1 – Cafferty, Bernard – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1956 Candidats Tournament – Round 2 – Geller, Efim P – 0-1 – Smyslov, Vladimir – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Nc6 8. Ng3 O-O 9. Bd3 Ba6 10. e4 Ne8
1956 JUG-URS – Round ? – Averbakh, Yuri L – 1-0 – Rabar, Braslav – G23 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 O-O 8. Ng3 Nc6 9. e4 Ne8 10. Be3 d6
1956 JUG-URS – Round 1 – Geller, Efim P – 1-0 – Djurasevic, Bozidar – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Nc6 8. Ng3 O-O 9. Bd3 Ba6 10. e4 Ne8
1956 Leningrad ch-URS – Round 8 – Polugaevsky, Lev – 0-1 – Averbakh, Yuri L – G132 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. O-O Na5
1957 DDR Ch 08th – Round 13 – Golz, Werner – 1/2-1/2 – Braun, Gottfried, Dr. – G81 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Ne2 Nc6 8. Ng3 O-O 9. e4 Ne8 10. Be3 Ba6
1957 Minsk zt – Round 16 – Uusi, Gunnar – 1/2-1/2 – Barshauskas, Vitautas – G110 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1957 Reykjavik ol stud tt – Round ? – Kolarov, Atanas S. – 1/2-1/2 – Persitz, Raaphi – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 d6 10. e4 Qd7
1957 Rio de Janeiro zt – Round 1 – Rubio Aguado, Fernando – 1/2-1/2 – Najdorf, Miguel – G12 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Nc6 8. Nf3 d6 9. e4 e5 10. h3 Qc7
1957 URS Ch, semi final – Round 4 – Vladimirov, Boris T – 0-1 – Gipslis, Aivars – G55 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 O-O 8. Ng3 Ba6 9. e4 d5 10. Bg5 h6
1959 FRG Ch Nuerenberg GER – Round 7 – Lehmann, Heinz – 1-0 – Weise, Dieter – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Ba6 8. Ng3 Qc7 9. e4 d6 10. Bf4 cxd4
1961 Baku ch-URS – Round 19 – Vladimirov, Boris T – 0-1 – Shamkovich, Leonid – G173 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Nc6 8. Ng3 d6 9. e4 e5 10. dxc5 dxc5
1961 Bled – Round 12 – Germek, Milan – 1/2-1/2 – Pachman, Ludek – G111 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 O-O 8. Ng3 Nc6 9. Bd3 Ba6 10. e4 Ne8
1961 CSR Ch – Round 5 – Trapl, Jindrich – 1-0 – Marsalek, Josef – G42 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 Rc8 10. e4 d6
1961 Graz 1st – Round 5 – Robatsch, Karl – 0-1 – Pachman, Ludek – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 O-O 8. Ng3 Nc6 9. Bd3 Ba6 10. O-O Na5
1961 Oberhausen etc – Round 3 – Trapl, Jindrich – 1-0 – Tolush, Alexander – G83 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Ba6 8. Ng3 Nc6 9. e4 O-O 10. Bg5 h6
1961 Palanga Baltic Ch – Round ? – Buslaev, Aleksander – 1/2-1/2 – Vistaneckis, Isakas – G6 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8
1962 LAT Ch – Round ? – Mileika, Janis – 0-1 – Gipslis, Aivars – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 O-O 9. Ne2 Nc6 10. e4 Ne8
1962 Marianske Lazne – Round 6 – Kluger, Gyula – 1/2-1/2 – Djurasevic, Bozidar – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 O-O 8. Ng3 d5 9. cxd5 exd5 10. Bd3 Ba6
1962 Varna olm – Round 7 – Colon Cortegoso, Marta – 1/2-1/2 – Gunsberger, Alexander – G289 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Nf3 O-O 8. Bd3 Bb7 9. O-O Ne4 10. Bxe4 Bxe4
1963 Capablanca Memorial – Round 20 – Calero, Ivan – 0-1 – Ivkov, Borislav – G186 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. a4 Nc6 8. Ba3 d6 9. Nf3 O-O 10. Bd3 Ba6
1964 Hoogovens-B – Round 4 – Muller, Hans P – 1/2-1/2 – Kieninger, Georg – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Ba6 8. Ng3 Qc7 9. e4 cxd4 10. cxd4 Bxc4
1964 URS – Round ? – Donchenko, Anatoly – 1-0 – Liberzon, Vladimir M – G5 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Ne2 O-O 8. Ng3 Nc6 9. Bd3 Ba6 10. Qe2 Qc7
1964 URS – Round ? – Vladimirov, Boris T – 1-0 – Estrin, Boris – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Ne2 O-O 8. Ng3 Bb7 9. Bd3 Nc6 10. O-O Ne8
1965 BRA Ch 32th – Round 11 – Cotta, Eduardo – 1-0 – Alves, Francisco H B Severino – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 O-O 9. e4 d6 10. Bg5 Nbd7
1965 IBM I – Round 7 – Szabo, Ladislav – 1-0 – Zuidema, Coen – G10 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 O-O 9. e4 Ne8 10. Be3 Nc6
1967 Buenos Aires VC Ch – Round 9 – Morgado, Juan Sebastian – 0-1 – Castelli, Raul A – G9 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 d6 10. O-O Qc7
1968 CCOL5 fin 6568 – Round ? – Parr, Frank – 0-1 – Sauermann, Wilfried – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Bb7 8. f3 O-O 9. Ng3 Nc6 10. Be2 Na5
1969 Corr – Round ? – Nielsen, Axel – 1/2-1/2 – Pedersen, Svend – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 Rc8 10. e4 Na5
1970 IBM – Round 11 – Piket, Jeroen – 0-1 – Tatai, Stefano – G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 O-O 9. e4 Ne8 10. Ne2 Nc6
1972 Skopje ol (Men) fin-A – Round 6 – Garcia Rodriguez, Raimundo – 1-0 – Hamann, Svend – G150 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Ne2 Bb7 8. Ng3 Qc7 9. e4 d6 10. d5 Nbd7
Saint Louis Blitz 2024 - Round 11 - Caruana Fabiano - 1/2-1/2 - So Wesley - G52 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 O-O 9. e4 Ne8 10. Nh3 Nc6
Superbet Rapid & Blitz Poland 2025 – Round 12 – Firouzja Alireza – 0-1 – Praggnanandhaa R – G58 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Bb7 8. f3 Nc6 9. Ne2 O-O 10. e4 Ne8

E26c — Sämisch Variation, O'Kelly Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3 b6

Les coups candidats

7.Bd3 — 73.3% (524 parties)

Ambassadeurs : Mastichiadis, Fotis (6x), Eken, Max (4x), O'Kelly de Galway, Alberic (3x), Matanovic, Aleksandar (3x), Donner, Jan-Hein (3x), Santos, Marcus Vinicius Moreira (3x), Tsuboi, Edson Kenji (3x), Iniyan, Pa (3x)

7.Ne2 — 16.5% (118 parties)

Ambassadeurs : Pachman, Ludek (3x), Vladimirov, Boris T (2x), Robatsch, Karl (2x), Averbakh, Yuri L (2x), Shamkovich, Leonid (2x), Djurasevic, Bozidar (2x), Vladimirov, Boris (2x), Huelsmann, Josef (2x)

7.Nf3 — 6.3% (45 parties)

Ambassadeurs : Wallis, Philip N (2x), Ilinsky, Yury (2x), Cafferty, Bernard (1x), Seoev, Robert (1x), Biyiasas, Peter (1x), Ludgate, Alan (1x), Rosenfeld, Isai K (1x), Erozbek, Akdogan (1x)

7.f3 — 1.1% (8 parties)

Ambassadeurs : Vano, E. (1x), Buerger, E. (1x), Doerner, Charles (1x), German, Eugenio (1x), Ntailanis, N. (1x), Georghiou, Antonis (1x), Guevara, Francisco Javier (1x), Alzola, Enrique (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Bd3	7.Ne2	7.Nf3	7.f3
<1800	31	81%	3%	13%	3%
1800-2200	210	77%	8%	10%	1%
2200-2600	194	81%	15%	2%	1%
2600+	5	80%	20%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Bd3	7.Ne2	7.Nf3	7.f3
1950s	96	81%	15%	2%	1%
1960s	85	40%	45%	12%	1%
1970s	41	46%	46%	5%	—
1980s	54	63%	26%	4%	2%
1990s	85	75%	15%	5%	—
2000s	124	84%	6%	6%	2%
2010s	131	81%	4%	11%	1%
2020s	99	86%	7%	3%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Bd3	81%	86%	▲ +4.9%
7.Ne2	4%	7%	▲ +3.3%
7.Nf3	11%	3%	▼ -8.4%
7.f3	1%	2%	▲ +1.3%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 3 parties

Parties historiques

7.Bd3 — 73.3% (524 parties)

1950 — Mastichiadis, Fotis vs Eken, Max — 0-1 — Dubrovnik olm
1950 — Mastichiadis, Fotis vs O'Kelly, Albéric de Galway — 0-1 — Dubrovnik olm
1950 — Castillo Bermudez, Manuel vs O'Kelly de Galway, Alberic — 0-1 — Dubrovnik CRO
1950 — Gruber, Bratoljub vs De Stefani, Carlo — 0-1 — Venice ITA
1950 — Simagin, Vladimir vs Foltys, Jan — 1/2-1/2 — Schiavno Zdroj

7.Ne2 — 16.5% (118 parties)

1952 — Huguet, Horacio E vs Garibaldi, Oscar — 1-0 — Buenos Aires ARG
1956 — Averbakh, Yuri L vs Rabar, Braslav — 1-0 — Belgrade SRB
1956 — Geller, Efim P. vs Smyslov, Vasily — 0-1 — Amsterdam NED
1956 — Richards, David John vs Cafferty, Bernard — 0-1 — Blackpool ENG
1956 — Geller, Efim P. vs Djurasevic, Bozidar — 1-0 — Belgrade SRB

7.Nf3 — 6.3% (45 parties)

1950 — Spassky, Boris Vasily vs Bykov, Valery — 1-0 — Leningrad RUS
1959 — Wallis, Philip N vs Cafferty, Bernard — 1/2-1/2 — ?
1960 — Wallis, Philip N vs Wilkinson, Bernard Landon — 1-0 — Coventry ENG
1961 — Ilinsky, Yury vs Seoev, Robert — 1-0 — Novgorod RUS
1961 — Ilinsky, Yury vs Rosenfeld, Isai K — 0-1 — Novgorod RUS

7.f3 — 1.1% (8 parties)

1952 — Doerner, Charles vs German, Eugenio — 0-1 — Helsinki olm
1968 — Vano, E. vs Buerger, E. — 0-1 — Illinois Open
1988 — Ntailanis, N. vs Georghiou, Antonis — 1/2-1/2 — ?
2007 — Guevara, Francisco Javier vs Alzola, Enrique — 1-0 — ICCF
2008 — Merino Araguas, Jose Javier vs Esquivias Gomez, Francisco Javier — 1/2-1/2 — Madrid ESP