E67e — King’s Indian: Fianchetto, Classical, 8.d5

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.d5 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, case forte d5, case forte g5, paire de fous.
Faiblesses adverses : arriéré f7, Bg7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte c5, case forte e5, avant-poste c5(C), paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bg7 enfermé, Bc8 enfermé, arriéré f7.
Plans :
● ...Bg4 — Développer Bc8, clouer Nf3
● ...c6 — Rupture
● ...c5 — Rupture
● ...e4 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E67e — Fianchetto Classical

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.d5

Eval: [-0.21]

Les coups candidats

8…a5 — 64.7% (510 parties)

Ambassadeurs : Marodi, Matyas (7x), Kotov Lundqvist, Alex (3x), Najdorf, Miguel (3x), Markovic, Miroslav (3x), Mundet Riera, Jaume (3x), Pilarte Castro, Rene Ozmar (3x), Gudmundsson, Jon Jorundur (2x), De Groot, Adriaan (2x)

8…Ne8 — 8.4% (66 parties)

Ambassadeurs : Gramlich, Sebastian (2x), Kobak, Jakub (2x), Hempson, Peter W (1x), Penrose, Justin (1x), Mackay, Donald G (1x), Durao, Joaquim (1x), Makinen, Ilkka (1x), Miles, Richard J (1x)

8…h6 — 6.2% (49 parties)

Ambassadeurs : Kerr, Brian (1x), Hartston, William R (1x), Mills, Robert (1x), Vuille, Charles (1x), Gratias, Sabine (1x), Nuenchert, Eveline (1x), Estavillo, Ederwin (1x), Najdorf, Miguel (1x)

8…Nc5 — 5.7% (45 parties)

Ambassadeurs : Yanofsky, Daniel Abraham (1x), Kavalek, Lubomir (1x), Fairhurst, William (1x), Wade, Robert G (1x), Radovici, Corvin (1x), Vaisman, Volodia (1x), Poulin, Claude (1x), Pineault, Denis (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…a5	8…Ne8	8…h6	8…Nc5
<1800	48	69%	8%	4%	4%
1800-2200	354	65%	9%	6%	6%
2200-2600	155	71%	6%	8%	6%
2600+	1	—	—	100%	—

Évolution par décennie (% des parties)

Décennie	N parties	8…a5	8…Ne8	8…h6	8…Nc5
1920s	1	100%	—	—	—
1930s	8	62%	—	—	—
1940s	8	100%	—	—	—
1950s	10	80%	10%	—	10%
1960s	22	55%	5%	9%	9%
1970s	25	68%	16%	4%	4%
1980s	32	62%	6%	6%	3%
1990s	180	52%	12%	11%	5%
2000s	202	65%	8%	7%	6%
2010s	271	71%	7%	4%	6%
2020s	29	76%	3%	—	10%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…a5	71%	76%	▲ +5.0%
8…Ne8	7%	3%	▼ -3.6%
8…h6	4%	0%	▼ -3.7%
8…Nc5	6%	10%	▲ +4.4%

Parties historiques

8…a5 — 64.7% (510 parties)

1923 — Gruenfeld, Ernst vs Yates, Frederic D — 1/2-1/2 — Carlsbad CZE
1936 — Gilg, Alfred, Dr. vs Pelikan, Anna — 1-0 — ?
1936 — Gilg, Karl vs Pelikan, Jorge — 1-0 — Liberec
1939 — Pinzon Solis, Felipe vs Najdorf, Miguel — 0-1 — Buenos Aires ol pr-A
1939 — Gudmundsson, Jon Jorundur vs De Groot, Adriaan — 0-1 — olm Buenos Aires

8…Ne8 — 8.4% (66 parties)

1957 — Mackay, Donald G vs Durao, Joaquim — 1-0 — Bognor Regis
1966 — Hempson, Peter W vs Penrose, Justin — 0-1 — Sunderland ch-BCF
1971 — Ocampo Vargas, Raul vs Panno, Oscar — 0-1 — Villa Gesell ARG
1973 — Padilla, Jorge vs Torre, Eugenio — 1/2-1/2 — Caracas VEN
1974 — Makinen, Ilkka vs Miles, Richard J — 1-0 — Teesside ENG

8…h6 — 6.2% (49 parties)

1966 — Kerr, Brian vs Hartston, William R — 1/2-1/2 — Havana CUB
1968 — Mills, Robert vs Vuille, Charles — 1-0 — US Open
1977 — Gratias, Sabine vs Nuenchert, Eveline — 1-0 — Frankfurt/Oder
1984 — Estavillo, Ederwin vs Najdorf, Miguel — 0-1 — Mar del Plata ARG
1989 — Leiber, Bernard vs Maeser, Fabian — 0-1 — Lugano op Lugano SUI

8…Nc5 — 5.7% (45 parties)

1951 — Fairhurst, William vs Wade, Robert G — 1-0 — Oxford ENG
1963 — Radovici, Corvin vs Vaisman, Volodia — 1/2-1/2 — Bucharest ROU
1969 — Yanofsky, Daniel Abraham vs Kavalek, Lubomir — 1/2-1/2 — Netanya ISR
1978 — Poulin, Claude vs Pineault, Denis — 0-1 — Quebec CAN
1988 — Stelzer, Harald vs Werner, Clemens — 0-1 — GER

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● f7
Chaînes	● f2→g3, h2→g3, c4→d5	● d6→e5, c7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (3v1), ● g5 (2v0)	● c5 (2v0), ● e5 (2v1)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v1)	● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
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	● c4-c5, ● e2-e3	● …c7-c6, ● …c7-c5, ● …e5-e4

Partie
1923 Karlsbad – Round 1 – Gruenfeld, Ernst – 1/2-1/2 – Yates, Frederic D – G49 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. d5 d6 5. Nc3 O-O 6. g3 e5 7. Bg2 Nbd7 8. O-O a5 9. Ne1 Nc5 10. e4 Ne8
1930 Liege – Round 3 – Weenink, Henri – 1-0 – Marshall Viele, Fabrizio Aaron – G13 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 e5 5. d5 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O Nb6 9. Nd2 a5 10. b3 Bf5
1931 Praag olm – Round 9 – Flohr, Salo – 0-1 – Bogoljubow, Efim – G44 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nc3 Nbd7 7. O-O e5 8. d5 Nb6 9. b3 Bd7 10. h3 Nh5
1935 Tatatovaros it – Round 7 – Szigeti, Miklos – 0-1 – Steiner, Endre – G7 1. Nf3 Nf6 2. c4 g6 3. d4 d6 4. Nc3 Nbd7 5. g3 Bg7 6. Bg2 O-O 7. O-O e5 8. d5 Qe7 9. Qc2 a5 10. e4 Nc5
1939 Buenos Aires ol prel-A – Round 3 – Pinzon Solis, Felipe – 0-1 – Najdorf, Miguel – G13 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Nf3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. d5 a5 9. e4 Nc5 10. Bg5 h6
1942 Mar del Plata – Round 6 – Canepa, Jose – 0-1 – Najdorf, Miguel – G52 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. d5 a5 9. e4 Nc5 10. Ne1 Ne8
1946 JUG Ch – Round 6 – Markovic, Miroslav – 1-0 – Milic, Borislav – G22 1. d4 Nf6 2. Nf3 d6 3. g3 g6 4. Bg2 Bg7 5. c4 O-O 6. Nc3 Nbd7 7. O-O e5 8. d5 a5 9. e4 Nc5 10. Ne1 Nfd7
1946 Moscow-Prague tt – Round 11 – Kottnauer, Cenek – 0-1 – Bronstein, David I – G9 1. Nf3 Nf6 2. c4 d6 3. g3 g6 4. Bg2 Bg7 5. O-O Nbd7 6. d4 e5 7. Nc3 O-O 8. d5 a5 9. e4 Nc5 10. Ne1 Nfd7
1948 Moskou ch-URS – Round 16 – Kotov Lundqvist, Alex – 0-1 – Konstantinopolsky, Alexander – G133 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. d5 a5 9. e4 Nc5 10. Ne1 Kh8
1949 Baarn – Round 7 – De Lange, Daan – 0-1 – Henneberke, Frans – G23 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 O-O 6. Nf3 Nbd7 7. O-O e5 8. d5 a5 9. Ne1 Nc5 10. Nd3 Ne8
1950 CSR-BUL Prague CZE – Round 1 – Ivanov, Dimitar – 1/2-1/2 – Zita, Frantisek – G4 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. d5 a5 9. e4 Nc5 10. Ne1 Ne8
1951 Oxford – Round 2 – Fairhurst, William – 1-0 – Wade, Robert G – G3 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Nb3 Nxb3
1952 Havana – Round 11 – Ortega, Rogelio – 1/2-1/2 – Eliskases, Erich – G97 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. O-O Nbd7 7. Nc3 e5 8. d5 a5 9. e4 Nc5 10. Qc2 Nh5
1952 Moscow Ch – Round 14 – Kotov Lundqvist, Alex – 1/2-1/2 – Glotov, Vitaly – G73 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. d5 a5 9. Ne1 Nc5 10. Nd3 Nxd3
1953 Wch U20 qual – Round 2 – Petri, Bernd – 0-1 – Farre Mallofre, Miguel – G5 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. d5 a5 9. Kh1 Ne8 10. e4 Nc5
1955 Erfurt – Round 1 – Franz, Joachim – 1/2-1/2 – Dworzynski, Roman – G17 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. d5 a5 9. Ne1 Nc5 10. Nd3 Nfd7
1957 Stevenson Memorial 5th – Round 4 – Mackay, Donald G – 1-0 – Durao, Joaquim – G8 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. O-O O-O 6. Nc3 e5 7. d4 Nbd7 8. d5 Ne8 9. e4 f5 10. Ne1 c5
1961 Katowice ch18-POL – Round 7 – Balcerowski, Witold – 0-1 – Bednarski, Jacek – G48 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. d5 a5 9. Ne1 Nc5 10. Nd3 Nxd3
1966 La Habana olm fin-C – Round 4 – Naranja, Renato – 1-0 – Yepez, Olavo – G20 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. d5 a5 9. e4 Nc5 10. Ne1 c6
1966 La Habana olm prel – Round 2 – Kerr, Brian – 1/2-1/2 – Hartston, William R – G51 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. d5 h6 9. e4 Ne8 10. Qc2 f5
1966 Sunderland ch-BCF – Round 1 – Hempson, Peter W – 0-1 – Penrose, Justin – G11 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. d5 Ne8 9. e4 h6 10. Be3 f5
1967 ITA-ch28 Savona – Round 2 – Romani, Elio – 1/2-1/2 – Bacchelli, Renato – G4 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. d5 a5 9. e4 Nc5 10. Qc2 Ne8
1969 Netanya – Round 2 – Yanofsky, Daniel Abraham – 1/2-1/2 – Kavalek, Lubomir – G14 1. c4 g6 2. Nf3 Bg7 3. d4 Nf6 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. d5 Nc5 9. b4 Nce4 10. Nxe4 Nxe4
1969 YUG Ch 24th – Round 19 – Puc, Stojan – 1/2-1/2 – Bukic, Enver – G71 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. O-O Nbd7 7. Nc3 e5 8. d5 a5 9. Ne1 Nc5 10. Nd3 Nfd7

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