Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● c4→d5	● d6→c5, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● g5 (2v0)	● g4 (2v0), ● f5 (2v0)
Cases faibles	—	● d5
Centre	● d4 (2v1), ● d5 (3v1), ● e5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● e	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Be2	● Be2 Mauvais (mob. 2)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● f4-f5	—

E77f — King’s Indian: Four Pawns Attack, 6.Be2 c5 7.d5 e6 8.Nf3 exd5 9.exd5

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.d5 e6 8.Nf3 exd5 9.exd5 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. O-O (Mettre le roi en sécurité, connecter les tours — 93 % des parties) ; Bd2 (Développer c1 — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Re8 (Tour sur colonne ouverte e — 46 % des parties) ; ...Nh5 (16 % des parties) ; ...Bf5 (Fou actif (mobilité 9), Développer c8 — 15 % des parties) ; ...Na6 (Développer b8 — 11 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1935 Oerebro – Round 7 – Lundin, Erik – 1-0 – Ekenberg, Bengt – G10 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Bf5
1938 Argentina – Round 21 – Lalich, Voyin – 0-1 – Villegas, Benito – G96 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1951 San Rafael – Round ? – Corral, Hector – 1-0 – Estrada Degrandi, Walter – G26 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. h3 Nh5
1953 Copenhagen (Wch-jr final) - Round 5 - Penrose, Jonathan - 1/2-1/2 - Panno, Oscar - G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1953 Leningrad (URS Team Ch) - Round ? - Prokhorovich, Taras E - 0-1 - Korchnoi, Viktor - G20 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Na6
1954 Amsterdam olm – Round 1 – Wade, Robert G – 1/2-1/2 – Darga, Klaus – G77 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Bf5
1954 Belgrade – Round 5 – Wade, Robert G – 0-1 – Petrosian, Tigran A. – G53 1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 Nf6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1954 Bucharest – Round 8 – Wade, Robert G – 1-0 – Abramovich Furman, Semyon – G73 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1954 Gorki ch22-SU sf – Round 1 – Vladimirov, Boris T – 0-1 – Boleslavsky, Isaac – G8 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 c5 6. d5 d6 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1955 URS Ch sf Moscow RUS – Round 1 – Vladimirov, Boris T – 1-0 – Bellin, Bruno – G16 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 d6 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 a6 10. a4 Re8
1956 Budapest Szikra – Round 1 – Barcza, Gedeon – 1/2-1/2 – Benko, Pal – G8 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1956 Candidats Tournament – Round 3 – Filip, Marius Liviu – 1-0 – Szabo, Ladislav – G11 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1956 Leningrad ch-URS – Round 1 – Antoshin, Vladimir S – 1/2-1/2 – Boleslavsky, Isaac – G66 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Re8
1956 Podebrady (CSR Ch) - Round 17 - Stulik, Vlastimil - 1/2-1/2 - Dolezal, Jiri - G154 1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Re8
1957 URSS (URS Ch, semi final) - Round 19 - Vladimirov, Boris T - 1-0 - Kots, Yuri I - G175 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1958 Tashkent (URS Ch sf) - Round ? - Vladimirov, Boris T - 1-0 - Tarasov, Vitaly - G38 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Na6 10. O-O Nc7
1960 Buenos Aires ch-ARG – Round 7 – Schweber – 1/2-1/2 – Bolbochan, J. – G45 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 a6 10. O-O Bg4
1960 Leipzig olm fin-A – Round 5 – Mititelu, Gheorghe – 1/2-1/2 – Dittmann, Sieghart – G86 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1960 Leningrad tt – Round 4 – Beyen, Roland – 1-0 – Malich, Burkhard, Dr. – G39 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 O-O 7. Be2 e6 8. Nf3 exd5 9. exd5 Re8 10. O-O Ng4
1960 Sao Paulo zt – Round 18 – Schweber, Samuel – 1/2-1/2 – Perez Alcocer, Jose – G90 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Bf5
1961 Amsterdam (IBM) - Round 4 - Wade, Robert G - 1-0 - De Rooi, Paul - G20 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bg4 10. O-O Nbd7
1961 Baku ch-URS – Round 14 – Vladimirov, Boris T – 1-0 – Gurgenidze, Bukhuti – G130 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Re8
1961 Bucharest GMT 5th – Round 7 – Mititelu, Gheorghe – 1/2-1/2 – Soos, Bela – G27 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 e6 7. Be2 exd5 8. exd5 O-O 9. Nf3 Bf5 10. O-O Re8
1961 Budapest-Leningrad m – Round 4.10 – Vladimirov, Boris T – 0-1 – Gasztonyi, Endre – G17 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1961 Mar del Plata – Round 4 – Reinhardt, Enrique – 1-0 – Silva Nazzari, Roberto – G45 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Bf5
1961 New York ch-USA – Round 10 – Berliner, Hans – 0-1 – Lombardy, William J – G50 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1961 Romania (ROM Ch) - Round 1 - Mititelu, Gheorghe - 1/2-1/2 - Vaisman, Volodia - G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 e6 7. Nf3 exd5 8. exd5 O-O 9. Be2 Ng4 10. O-O f5
1961 Zevenaar – Round 11 – Wade, Robert G – 1/2-1/2 – Beni, Alfred – G74 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Bf5
1962 Bucharest – Round 12 – Mititelu, Gheorghe – 1/2-1/2 – Thorbergsson, Freysteinn – G61 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Be2 e6 8. Nf3 exd5 9. exd5 Bf5 10. O-O Re8
1962 Hungary – Round 15 – Forintos, Gyozo V – 1-0 – Szollosi, Laszlo – G115 1. d4 Nf6 2. c4 g6 3. Nc3 c5 4. d5 d6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1962 Hungary – Round 4 – Forintos, Gyozo V – 1/2-1/2 – Szabo, Ladislav – G32 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1962 Hungary – Round 4 – Liptay, Laszlo Dr. – 1-0 – Ozsvath, Andras – G33 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 a6 10. a4 b6
1962 Leningrad – Round 1 – Vladimirov, Boris T – 1-0 – Zilber, Israel – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Nh5 10. O-O Bxc3
1962 Leningrad (URS Team Ch) - Round 1 - Barstatis, Reinhardas - 1/2-1/2 - Zilber, Israel - G47 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. Qc2 Bf5
1962 Leningrad (URS Team Ch) - Round 1 - Maslov Lavrenuk, Vladimir - 0-1 - Gipslis, Aivars - G26 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1962 Leningrad (URS Team Ch) - Round 1 - Mikenas, Vladas - 0-1 - Polugaevsky, L. - G46 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Nh5 10. O-O Bxc3
1962 Marianske Lazne – Round 1.1 – Liptay, Laszlo Dr. – 1-0 – Macdonald-Ross, Michael – G14 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Bf5
1962 Marianske Lazne – Round 4.1 – Liptay, Laszlo Dr. – 0-1 – Spassky, B. – G29 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Re8
1962 Montevideo (URU Ch) - Round 6 - Silva Nazzari, Roberto - 1/2-1/2 - Alvarez del Monte, Jose - G9 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Re8 10. O-O Ng4
1962 New York ch-USA – Round 2 – Berliner, Hans – 1/2-1/2 – Byrne, Ray – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Ne8 10. O-O Nc7
1962 Olympiad – Round ? – Bilek, Istvan – 1/2-1/2 – Byrne, Robert E – G2 1. d4 g6 2. c4 Bg7 3. e4 d6 4. f4 Nf6 5. Nc3 c5 6. d5 e6 7. Nf3 exd5 8. exd5 O-O 9. Be2 Re8 10. O-O Ng4
1962 Reggio Emilia ITA – Round 3 – Honfi, Karoly – 1-0 – Fleischmann Claus – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Na6 10. O-O Bd7
1962 Sofia – Round 5 – Padevsky, Nikola – 1-0 – Golz, Werner – G33 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Na6
1962 Stockholm int. turneringen – Round 1 – Lundin, Erik – 0-1 – Olsson, Ake – G2 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Na6
1962 Stockholm Interzonal – Round 2 – Schweber, Samuel – 1-0 – Bertok, Mario Jr. – G2 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1962 Stockholm Interzonal – Round 4 – Schweber, Samuel – 1-0 – Teschner, Rudolf – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1962 Varna – Round 6 – Brinck-Claussen, Bjorn – 0-1 – Littlewood, Paul E – G41 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 d6 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1962 Varna olm – Round 1 – Silva Nazzari, Roberto – 1/2-1/2 – Kristjansson, Olafur – G42 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Na6 10. O-O Nc7
1962 Varna olm – Round 11 – Wade, Robert G – 1/2-1/2 – Schmidt, Waldemar – G454 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1962 Varna olm – Round 2 – Portisch, Lajos – 1/2-1/2 – Uhlmann, Wolfgang – G94 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1962 Varna olm – Round 6 – Szabo, Ladislav – 1/2-1/2 – Ciocaltea, Victor – G254 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Bf5 10. O-O Na6
1962 Varna olm – Round 9 – Bilek, Istvan – 1/2-1/2 – Byrne, Ray – G387 1. d4 g6 2. c4 Bg7 3. e4 d6 4. f4 Nf6 5. Nc3 c5 6. d5 e6 7. Nf3 exd5 8. exd5 O-O 9. Be2 Re8 10. O-O Ng4
1963 ? (P.C.C. A-P-A A6) - Round ? - Collins, Richard Arnold - 0-1 - Golding, S. - G5 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1963 ? (P.C.C. A-P-A A6) - Round ? - Collins, Richard Arnold - 1-0 - Wake, D. - G2 1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 e6 6. Nf3 O-O 7. Be2 c5 8. d5 exd5 9. exd5 Na6 10. O-O Nc7
1963 Alekhine Memorial – Round 13 – Vladimirov, Boris T – 1/2-1/2 – Gligorić, Svetozar – G87 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1963 Asztalos Memorial – Round 8 – Forintos, Gyozo V – 1-0 – Szabo, Laszlo – G19 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1963 Budapest ch-HUN – Round 1 – Gasztonyi, Endre – 1-0 – Honfi, K. – G102 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1963 Capablanca Memorial – Round 16 – Wade, Robert G – 1/2-1/2 – Robatsch, Karl – G148 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1963 Club Argentino – Round 1 – Amado, Claudio – 0-1 – Bielicki, Carlos – G7 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Nh5 10. O-O Re8
1963 Enschede zt – Round 1 – Tatai, Stefano – 0-1 – Penrose, Justin – G13 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Be2 e6 8. Nf3 exd5 9. exd5 Nh5 10. O-O Bxc3
1963 GDR Ch Aschersleben GER – Round 17 – Moehring, Guenther – 1/2-1/2 – Starck, Bodo – G87 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Nh5 10. Bd2 Re8
1963 Kiev Avantgard Ch – Round ? – Pelts, Roman – 1/2-1/2 – Adler, Viktor – G19 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1963 Stevenson Memorial 11th – Round 2 – Wade, Robert G – 1-0 – Collins, Richard Arnold – G4 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Na6 10. O-O Nc7
1963 Zvolen (CSR Ch sf) - Round 3.4 - Olexa, Vilem - 0-1 - Jansa, Vlastimil - G13 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1963 Zvolen (CSR Ch sf) - Round 9.1 - Olexa, Vilem - 0-1 - Kupka, Slavoj - G39 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. f4 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1964 Brasilia (BRA Ch) - Round 1 - De Souza Mendes, Joao - 1/2-1/2 - Camara, Helder - G2 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be2 d6 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Na6 10. O-O Nc7
1964 Budapest ch-HUN – Round 1 – Gasztonyi, Endre – 1/2-1/2 – Haag, Ervin – G74 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1964 Budapest HUN – Round 1 – Gasztonyi, Endre – 1/2-1/2 – Ozsvath, Andras – G8 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1964 Buenos Aires Ch – Round ? – Reinhardt, Enrique – 0-1 – Farah, Rodolfo – G27 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Na6 10. O-O Nc7
1964 Capablanca Memorial – Round 4 – Darga, Klaus – 1/2-1/2 – Uhlmann, Wolfgang – G45 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Bf5 10. O-O Ne4
1964 CSR Ch Army Prague CZE – Round 4 – Zajic, Jiri – 0-1 – Seifert, Milan – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 d6 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O a6
1964 Kiev (UKR Ch) - Round 18 - Pelts, Roman - 0-1 - ? - G112 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1964 Reykjavik – Round 1 – Thorbergsson, Freysteinn – 0-1 – Johannsson, Ingi R – G5 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 d6 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. Bd2 Re8
1964 Reykjavik – Round 10 – Thorbergsson, Freysteinn – 0-1 – Tal, Mikhail – G57 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f4 d6 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 b5 10. Nxb5 Ne4
1964 Southampton League Div 1 – Round 3.1 – Collins, Richard Arnold – 1-0 – Rawden, DA. – G1 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Re8
1965 Asztalos Memorial 8th – Round 14 – Gasztonyi, Endre – 1-0 – Borisenko, Georgy K – G89 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 a6 10. O-O b6
1965 Falkoeping (SWE Ch) - Round 11 - Akvist, Hakan - 0-1 - Johansson, Martin 1979 - G35 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 b5 10. cxb5 a6
1965 Kiel Open – Round 1 – Seeck, Klaus – 1/2-1/2 – Besser, Hans – G2 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 O-O 7. Nf3 e6 8. Be2 exd5 9. exd5 Bg4 10. O-O Re8
1965 Rio de Janeiro – Round 12 – Aguilera Rocha, Angelina – 0-1 – Mecking, Henrique – G20 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 e6 7. Nf3 exd5 8. exd5 O-O 9. Be2 Na6 10. O-O Nc7
1965 Vancouver – Round 4.6 – Kerr Ray – 0-1 – Yanofsky, Daniel Abraham – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1965 Vrbno pod Pradedem (CSR Ch U18) - Round 7 - Pribyl, Josef - 1-0 - Borik, Otto - G7 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. Bd2 Re8
1966 Prague (ARMIES-ch3) - Round 13 - Pribyl, Josef - 0-1 - Hort, Vlastimil - G28 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Re8 10. O-O Ng4
1966 Sochi Chigorin Memorial 04th – Round 11 – Vladimirov, Boris T – 1-0 – Bobotsov, Milko G – G43 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1966 Titovo Uzice – Round 1 – Forintos, Gyozo V – 1/2-1/2 – Gligorić, Svetozar – G24 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Nh5 10. O-O Bxc3
1967 Bratislava (CSR Ch) - Round 9 - Kubicek, Antonin - 1/2-1/2 - Trapl, Jindrich - G57 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1967 Budapest Bajnogsag 8th – Round 6 – Gasztonyi, Endre – 1-0 – Bodo, Mihaly – G37 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Na6 10. O-O Re8
1967 FRG Ch Kiel GER – Round 3 – Besser, Hans – 1-0 – Haakert, Juergen – G11 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1967 Harrachov – Round 1 – Trapl, Jindrich – 1-0 – Goethals, Janis – G27 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Bf5 10. O-O Ne4
1967 Kharkov (URS-ch35) - Round 1 - Shamis Khalifa AlNuaimi - 1-0 - Pelts, Roman - G46 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nh5 10. O-O Bxc3
1967 Leningrad – Round 1 – Kiktev, Grigory – 1-0 – Tarasov, Vitaly – G8 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Nf6 6. Be2 O-O 7. f4 e6 8. Nf3 exd5 9. exd5 Na6 10. O-O Ne8
1967 Leningrad – Round 1 – Shulman, Vladlen – 0-1 – Petrosian, Tigran A. – G18 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 b5 10. Nxb5 Ne4
1969 Ljubljana – Round 1 – Forintos, Gyozo V – 1/2-1/2 – Gligorić, Svetozar – G13 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Nh5 10. O-O Bxc3
1969 Mar del Plata zt – Round ? – Schweber, Samuel – 1/2-1/2 – Rossetto, Hector – G70 1. e4 d6 2. d4 g6 3. c4 Bg7 4. Nc3 Nf6 5. Be2 O-O 6. f4 c5 7. d5 e6 8. Nf3 exd5 9. exd5 Re8 10. O-O Bf5
1969 Praia da Rocha zt – Round 8 – Littleton, Michael F – 1/2-1/2 – Visier Segovia, Fernando – G28 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. exd5 b5 10. Nxb5 Ne4
1971 Hoogovens – Round 15 – Forintos, Gyozo V – 0-1 – Hartoch, Robert G – G20 1. c4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Nf6 6. Be2 O-O 7. f4 e6 8. Nf3 exd5 9. exd5 Bg4 10. O-O Nh5

E77f — Four Pawns Attack (1935)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Be2 c5 7.d5 e6 8.Nf3 exd5 9.exd5

Les coups candidats

9…Re8 — 51.3% (665 parties)

Ambassadeurs : Glembek, Bohumir (16x), Abrantes, Nilson de Almeida (7x), Vladimirov, Boris T (6x), Schweber, Samuel (6x), Stock, Gunter (5x), Wade, Robert G (3x), Mukic, Josko (3x), Voracek, Miroslav (3x)

9…Bf5 — 14.2% (184 parties)

Ambassadeurs : Mititelu, Gheorghe (3x), Wade, Robert G (3x), Vladimirov, Boris (2x), Lombardy, William J (2x), Schweber, Samuel (2x), Bruch, Ingo (2x), Horvath, Julia (2x), Proba, Stefan (2x)

9…Nh5 — 10.8% (140 parties)

Ambassadeurs : Forintos, Gyozo V (4x), Gasztonyi, Endre (4x), Pribyl, Josef (3x), Bilozor, Olexander (2x), Gligoric, Sofija (2x), Moehring, Guenther (2x), Zilber, Israel (2x), Brilla-Banfalvi, Sandor (2x)

9…Na6 — 10.6% (137 parties)

Ambassadeurs : Collins, Richard (5x), Tarasov, Vitaly (2x), Lorincz S (2x), Norcross, J. (2x), Shamis Khalifa AlNuaimi (1x), Zeitlein, Michael (1x), Adams, Peter J (1x), De Souza Mendes, Joao (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Re8	9…Bf5	9…Nh5	9…Na6
<1800	67	51%	10%	7%	15%
1800-2200	550	58%	13%	7%	11%
2200-2600	306	47%	15%	11%	11%

Évolution par décennie (% des parties)

Décennie	N parties	9…Re8	9…Bf5	9…Nh5	9…Na6
1950s	24	67%	17%	—	8%
1960s	173	32%	19%	26%	11%
1970s	90	37%	13%	19%	11%
1980s	72	40%	11%	24%	8%
1990s	269	54%	13%	11%	10%
2000s	331	56%	13%	4%	12%
2010s	292	60%	14%	5%	8%
2020s	46	52%	17%	4%	15%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Re8	60%	52%	▼ -7.4%
9…Bf5	14%	17%	▲ +3.4%
9…Nh5	5%	4%	▼ -0.8%
9…Na6	8%	15%	▲ +7.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

9…Re8 — 51.3% (665 parties)

1951 — Corral, Hector vs Estrada, Walter — 1-0 — San Rafael
1953 — Prokhorovich, Taras E vs Korchnoi, Viktor — 0-1 — Leningrad RUS
1953 — Penrose, Jonathan vs Panno, Oscar — 1/2-1/2 — Copenhagen DEN
1954 — Vladimirov, Boris T vs Boleslavsky, Isaac — 0-1 — Gorki ch22-SU sf
1954 — Wade, Robert G vs Darga, Klaus — 1/2-1/2 — Amsterdam olm

9…Bf5 — 14.2% (184 parties)

1954 — Wade, Robert G vs Petrosian, Tigran V. — 0-1 — Belgrade SRB
1956 — Abanin, Vladimir vs Boleslavsky, Isaac — 1/2-1/2 — Leningrad ch-URS
1956 — Stulik, Vlastimil vs Dolezal, Jiri — 1/2-1/2 — Podebrady CZE
1958 — Vladimirov, Boris T vs Sergievsky, Vladimir D — 1-0 — Sochi RUS
1960 — Schweber, Samuel vs Doda, Zbigniew — 1-0 — Leipzig GER

9…Nh5 — 10.8% (140 parties)

1962 — Maltsev, Leonid vs Gipslis, Aivars — 0-1 — Leningrad RUS
1962 — Mikenas, Vladas vs Polugaevsky, Lev — 0-1 — Leningrad RUS
1962 — Liptay, Laszlo Dr. vs Spassky, Boris V. — 0-1 — Marianske Lazne
1962 — Baar, Reinhard, Dr. vs Zilber, Israel — 1/2-1/2 — Leningrad RUS
1962 — Vladimirov, Boris vs Zilber, Israel — 1-0 — Leningrad RUS

9…Na6 — 10.6% (137 parties)

1953 — Dollstadt, Jean Walter vs Roethel, Michel — 1-0 — Paris FRA
1958 — Vladimirov, Boris T vs Tarasov, Vitaly — 1-0 — Tashkent UZB
1962 — Silva Nazzari, Roberto vs Kristjansson, Olafur — 1/2-1/2 — Varna olm
1962 — Honfi, Karoly vs Fleischmann, Claus — 1-0 — Reggio Emilia ITA
1963 — Collins, Richard vs Wake, D. — 1-0 — ?