Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● c7→d6, e7→d6, f7→g6, h7→g6
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● b5 (2v0), ● d5 (3v1), ● g5 (2v0) ● g4 (2v0)
Cases faibles
Centre ● d4 (2v0), ● d5 (3v1), ● e5 (2v1)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 5)
Be2 ● Be2 Ok (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 mobile
Ruptures ● c4-c5, ● e4-e5 ● …c7-c5, ● …d6-d5, ● …e7-e5

E91a — King’s Indian: 6.Be2

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2   ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bB
bQ
bR
bK
bP
bP
bP
bP
bP
bB
bP
bP
bN
bP
Case forte (2v0)
Case forte (3v1)
Case forte (2v0)
wP
wPPion central
wPPion central
wN
wN
wP
wP
wB
wP
wP
wP
wR
wBFou actif — mobilité 5
wQ
wK
wR
abcdefgh
Plans. O-O (Mettre le roi en sécurité, connecter les tours — 68 % des parties) ; d5 (Occuper le centre — 12 % des parties) ; Be3 (Fou actif (mobilité 5), Développer c1 — 11 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wK
wQ
wB
wR
wP
wP
wP
wB
wP
wP
wN
wN
Case forte (2v0)
wP
wP
wP
bP
bN
bP
bP
bB
bP
bP
bP
bP
bP
bK
bR
bQ
bBFou actif — mobilité 5
bN
bR
hgfedcba
Plans. ...e5 (Occuper le centre — 70 % des parties) ; ...Nbd7 (Développer b8 — 12 % des parties) ; ...Bg4 (Fou actif (mobilité 7), Développer c8 — 5 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
1935 Hastings3536 – Round 5 – Michell, Reginald – 0-1 – Koltanowski, George – G23
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 h6 7. O-O Nc6 8. d5 Nb8 9. h3 a5 10. Be3 b6
1947 Nt – Round 8 – Roedl, Ludwig – 1-0 – Rellstab, Ludwig – G13
1. Nf3 Nf6 2. c4 d6 3. d4 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 Nfd7 7. Bg5 f6 8. Be3 e5 9. O-O Nc6 10. Qd2 Ne7
1951 Tashkent m – Round 10 – Petrosian, Tigran A. – 1-0 – Mukhitdinov, Mamadzhan – G10
1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nfd7 7. Bg5 c5 8. d5 h6 9. Be3 Nf6 10. h3 Kh8
1953 Hastings ch-BCF – Round 1 – Golombek, Harry – 1-0 – Fazekas, Stephan – G18
1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nfd7 7. O-O e5 8. Bg5 f6 9. Be3 Nc6 10. Qd2 g5
1968 It Buesum GER – Round 8 – Andersen, Borge – 1-0 – Besser, Hans – G37
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 b6 7. O-O c5 8. d5 a6 9. h3 e5 10. dxe6 fxe6
World Blitz 2016 – Round 12.29 – Halkias, Stelios – 0-1 – Naiditsch, Arkadij – G483
1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. e4 d6 6. Be2 Qe8 7. O-O e5 8. dxe5 dxe5 9. Nd5 Na6 10. Qc2 Nd7
World Blitz 2017 – Round 1.59 – Nguyen, Ngoc Truong Son – 1-0 – Bukannan, Ahmed A – G50
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 b6 7. O-O Bb7 8. Qc2 Nbd7 9. Rd1 c5 10. d5 Ne5
World Blitz 2023 – Round 21.35 – Karthik, V. – 0-1 – Riazantsev, Alexander – G1197
1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 Re8 7. Bg5 h6 8. Be3 Nc6 9. h3 e5 10. d5 Nd4
World Blitz 2023 – Round 3.3 – Shimanov, Aleksandr – 0-1 – Dubov, Daniil – G167
1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 O-O 6. Be2 Re8 7. O-O Nc6 8. d5 Nb4 9. Bg5 e6 10. dxe6 Bxe6
World Rapid 2021 – Round 12.26 – Sargissian, Gabriel – 1-0 – Theodorou, Nikolas – G698
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 b6 7. O-O e5 8. Re1 Nc6 9. d5 Ne7 10. b4 a5
World Rapid 2021 – Round 8.38 – Gukesh D – 1-0 – Theodorou, Nikolas – G472
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 b6 7. O-O e5 8. Be3 Nc6 9. d5 Ne7 10. Ne1 Nd7

E91a — Orthodox Variation (1935)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2
Les coups candidats
Ambassadeurs : Kozul, Zdenko (277x), Van Wely, Loek (235x), Ftacnik, Lubomir (209x), Uhlmann, Wolfgang (176x), Vogt, Lothar (139x), Sakic, Radislav (119x), Gleizerov, Evgeny (114x), Cebalo, Miso (105x)
Ambassadeurs : Lane, Gary W (23x), Mazi, Leon (23x), Agrest, Inna (22x), Nunn, John D M (22x), Mestel, A Jonathan (20x), Romero Holmes, Alfonso (19x), Milligan, Helen (18x), Van der Weide, Karel (17x)
Ambassadeurs : Hoi, Carsten (30x), Guseinov, Gadir (30x), Szell, Lajos (29x), Pavlovic, Milos (29x), Mamedov, Rauf (21x), Barlov, Dragan (20x), Reeh, Oliver (18x), Marosi, Gyorgy (16x)
Ambassadeurs : Kempinski, Robert (50x), Schaefer, Markus (37x), Borisovs, Leonids (35x), Glek, Igor (34x), Bekker-Jensen, Simon (33x), Comas Fabrego, Lluis (29x), Bojkov, Dejan (28x), Perelshteyn, Eugene (28x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…e5 6…Nbd7 6…c5 6…Na6
<1800 7992 62% 16% 7% 3%
1800-2200 58613 70% 11% 5% 4%
2200-2600 70465 76% 7% 4% 6%
2600+ 2301 83% 2% 5% 5%
Évolution par décennie (% des parties)
Décennie N parties 6…e5 6…Nbd7 6…c5 6…Na6
1950s 815 63% 25% 3% 0%
1960s 1991 73% 11% 3% 0%
1970s 3127 76% 9% 4%
1980s 7540 73% 13% 4% 0%
1990s 34490 76% 9% 4% 3%
2000s 45843 71% 10% 5% 5%
2010s 52455 71% 9% 5% 5%
2020s 13228 71% 11% 4% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…e5 71% 71% ▼ -0.7%
6…Nbd7 9% 11% ▲ +2.0%
6…c5 5% 4% ▼ -1.0%
6…Na6 5% 7% ▲ +1.4%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Karpov, Anatoly — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 10 parties
Gukesh D — 10 parties
Botvinnik, Mikhail — 8 parties
Fischer, Robert James — 1 partie
Karpov, Aleksandr — 1 partie
Parties historiques
6…e5 — 72.3% (115387 parties)
1950 — Devos, Paul vs Prins, Lodewijk — 1/2-1/2 — Dubrovnik olm
1950 — Primavera, Giuseppe vs Kupferstich, Moises — 1-0 — Dubrovnik olm
1950 — Greenfeld, Alon vs Geller, Efim P. — 0-1 — Schiavno Zdroj
1950 — Gruenfeld, Ernst vs Geller, Efim P. — 0-1 — Szawno Zdroj
1950 — Greenfeld, Alon vs Geller, Efim P. — 0-1 — Schiavno Zdroj
6…Nbd7 — 9.7% (15475 parties)
1950 — Wichert, Otto vs Christoph, Manfred, Dr. — 1-0 — Detmold
1950 — Kramer, Haije vs Spanjaard, Eduard — 1/2-1/2 — Amsterdam ch-NED
1950 — O'Kelly, Albéric de Galway vs Van den Berg, Cees — 1/2-1/2 — Amsterdam NED
1950 — Pytlakowski, Andrzej vs Greenfeld, Alon — 0-1 — Schiavno Zdroj
1950 — Monticelli, Mario vs Hofmann, Edwin — 0-1 — Vienna AUT
6…c5 — 4.6% (7391 parties)
1951 — Bajec, Ivo vs Matanovic, Aleksandar — 0-1 — Sarajevo BIH
1952 — Friedman, Oded vs Yanofsky, Daniel Abraham — 0-1 — England
1953 — Benkner, Otto vs Crisovan — 1-0 — Lucerne SUI
1954 — Jerolim, J. vs Walsh, James — 0-1 — Amsterdam olm
1954 — Walsh, James vs Tsvetkov, Aleksandar — 0-1 — Amsterdam olm
6…Na6 — 4.4% (7018 parties)
1957 — Palmiotto, Fiorentino vs Laco, Giuseppe — 1-0 — Reggio Emilia ch ITA
1962 — Hort, Vlastimil vs Filipowicz, Andrzej — 1-0 — Marianske Lazne
1963 — Peterson, Andrejs vs Filipowicz, Andrzej — 1-0 — Soviet Union
1966 — ? vs Sakharov, Yuri N — 0-1 — ?
1980 — Vilela De Acuna, Jose Luis vs Barczay, Laszlo — 0-1 — Polanica Zdroj POL