E94q — King’s Indian: 7.O-O Nbd7 8.d5 Nc5

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.d5 Nc5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte b5….

Atouts. Les Blancs s'appuient sur les cases fortes b5 et g5 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8.

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

Plans. Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte c5.

Atouts. Les Noirs s'appuient sur la case forte g4, un avant-poste en c5 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et e2.

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

Plans. ...Bg4 (Développer Bc8, clouer Nf3) ; ...c6 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● c4→d5, e4→d5	● d6→e5, c7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● g5 (2v0)	● g4 (2v0)
Cases faibles	● e4	● d5
Centre	● d4 (2v1), ● d5 (4v1)	● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Enfermé (mob. 1)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
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	—	● …c7-c6

Partie
1932 Amsterdam/Karlsbad m – Round 9 – Flohr, Salo – 1/2-1/2 – Euwe, Max – G9 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 a4
1932 Bad Sliac – Round 1 – Flohr, Salo – 1-0 – Bogoljubow, Efim – G47 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bg4
1933 Folkestone Olympiad V – Round 7.4 – Dake, Arthur William – 1-0 – Alexander, Conol Hugh – G21 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Ne8
1940 Moskou ch-URS – Round 10 – Lisitsin, Georgy – 1-0 – Konstantinopolsky, Alexander – G133 1. c4 d6 2. Nf3 e5 3. Nc3 Nf6 4. d4 Nbd7 5. e4 g6 6. d5 Bg7 7. Be2 O-O 8. O-O Nc5 9. Nd2 a5 10. Qc2 Ne8
1946 Zaanstreek – Round 7 – Euwe, Max – 1-0 – Christoffel, Martin – G34 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e4 Nbd7 5. Nf3 g6 6. Be2 Bg7 7. O-O O-O 8. d5 Nc5 9. Nd2 a5 10. Qc2 a4
1947 La Plata-New York radio m – Round 1 – Luckis, Marcos – 1-0 – Byrne, David – G1 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. Nf3 O-O 5. e4 d6 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Nfd7
1947 Leningrad ch-URS – Round 14 – Flohr, Salo – 0-1 – Aronin, Lev – G130 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Ng4
1949 Bucharest – Round ? – Jenei, Ferenc – 1-0 – Popa Toma – G9 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 g6 5. e4 Bg7 6. Be2 O-O 7. O-O e5 8. d5 Nc5 9. Bg5 a5 10. Ne1 h6
1949 Budapest-Moscow – Round 1 – Flohr, Salo – 0-1 – Vajda, Arpad – G2 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 g6 6. Be2 Bg7 7. O-O O-O 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bg4
1949 Budapest-Moscow – Round 6 – Flohr, Salo – 1-0 – Florian, Tibor – G42 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bg4
1949 Moskou ch-URS – Round 1 – Petrosian, Tigran A. – 0-1 – Geller, Efim P – G84 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Nd2 a5 10. Qc2 Bh6
1950 Moskou ch-URS – Round 1 – Flohr, Salo – 1/2-1/2 – Petrosian, Tigran V – G118 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nbd7 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bh6
1951 Hungary Ch – Round 1 – Kapu, Jeno – 1/2-1/2 – Kluger, Gyula – G45 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Nd2 a5 10. Qc2 a4
1952 Helsinki olm – Round 1 – Sakellaropoulos, Theodoros – 0-1 – Boleslavsky, Isaac – G116 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Nd2 a5 10. Qc2 Bh6
1953 HUN Ch Budapest HUN – Round ? – Navarovszky, Laszlo – 0-1 – Sandor, Bela – G55 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. d5 Nc5 9. Bg5 h6 10. Bxf6 Qxf6
1953 Zagreb – Round 7 – Udovcic, Mijo – 1-0 – Bulat, Ante – G65 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. d5 Nc5 9. Nd2 a5 10. Re1 Ne8
1956 POL-CSR Warsaw POL – Round 1 – Dzieniszewski, Andrzej – 1/2-1/2 – Ujtelky, Maximilian – G5 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 c6
1957 Dublin zt – Round 3 – Van Scheltinga, Theo – 0-1 – Benko, Pal – G17 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 g6 6. Be2 Bg7 7. O-O O-O 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bh6
1958 HUN Ch Budapest HUN – Round 15 – Sandor, Bela – 1-0 – Kluger, Gyula – G78 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nbd7 8. d5 Nc5 9. Bg5 h6 10. Bxf6 Qxf6
1960 Leningrad tt – Round 2 – Kolarov, Atanas S. – 1/2-1/2 – Marsalek, Josef – G18 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Nd2 a5 10. Qc2 Bh6
1961 CSR Ch sf – Round 7 – Prucha, Karel – 1-0 – Malcanek, Oldrich – G14 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bh6
1961 Hastings6162 – Round 2 – Flohr, Salo – 1-0 – Barden, Leonard – G10 1. Nf3 g6 2. c4 Bg7 3. d4 Nf6 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Nd2 a5 10. Qc2 Bh6
1962 Liberation – Round 5 – Rossetto, Hector – 1-0 – ? – G8 1. d4 Nf6 2. Nf3 d6 3. c4 Nbd7 4. Nc3 e5 5. e4 g6 6. Be2 Bg7 7. O-O O-O 8. d5 Nc5 9. Nd2 a5 10. Qc2 Nfd7
1963 New York ch-USA – Round 1 – Addison, Wiliam G – 1/2-1/2 – Steinmeyer, Robert – G11 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. d4 d6 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Bg5 h6 10. Bxf6 Qxf6
1964 Malaga – Round 1 – Araujo Garcia, Taylor Javier – 0-1 – Durão, Joaquim Manuel – G3 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. d5 Na6 8. O-O Nc5 9. Bg5 h6 10. Bxf6 Qxf6
1966 La Habana olm prel – Round 6 – Vranesic, Zvonko – 1-0 – Constantinou, Agathoclis – G223 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 Nbd7 6. Be2 O-O 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. b3 Ne8
1967 Hoogovens – Round 7 – Donner, Jan-Hein – 1/2-1/2 – Darga, Klaus – G46 1. d4 g6 2. c4 Bg7 3. Nc3 Nf6 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Nd2 a5 10. Qc2 Ne8
1968 USA – Round 1 – Sandrin Chodorge, Antoine – 0-1 – Byrne, Ray – G5 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. d5 Na6 8. O-O Nc5 9. Bg5 h6 10. Bxf6 Qxf6
42. Olympiad 2016 – Round 1.3 – Saraci, Nderim – 0-1 – Ding, Liren – G44 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Na6 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bh6

E94q —

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.d5 Nc5

Les coups candidats

9.Qc2 — 77.2% (3656 parties) →

Ambassadeurs : Huss, Andreas (20x), Hicker, Harald (13x), Naumkin, Igor (11x), Dobrev, Nanko (10x), Zilberman, Yaacov (10x), Keene, Raymond D (8x), Miladinovic, Igor (8x), Wukits, Rene (8x)

9.Nd2 — 15.3% (725 parties)

Ambassadeurs : Flohr, Salo (9x), Euwe, Max (5x), Bogoljubow, Efim (3x), Hort, Vlastimil (3x), ? (3x), Litwin, Barbara (3x), Jedynak, Radoslaw (3x), Mir Mahmoud, Afamia (3x)

9.Bg5 — 6.9% (326 parties)

Ambassadeurs : Byrne, Ray (2x), Sandrin, Angelo (2x), Sandor, Bela (2x), Sandrin Chodorge, Antoine (2x), Navarovszky, Laszlo (2x), Vetter, Wilhelm (2x), Karlik, Vladimir (2x), Budt, Karl-Heinz (2x)

9.Bd3 — 0.3% (16 parties)

Ambassadeurs : Krohg, Georg A (1x), Svedenborg, Dag (1x), De Elias Martinez, Fernando (1x), Schott, Thomas E (1x), Acero Guerra, Diego (1x), Boxall, Graham (1x), Borkenhagen, Andreas (1x), Schwahn, Christian (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.Qc2	9.Nd2	9.Bg5	9.Bd3
<1800	235	77%	12%	9%	1%
1800-2200	1909	77%	16%	7%	0%
2200-2600	1389	83%	14%	4%	—
2600+	13	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9.Qc2	9.Nd2	9.Bg5	9.Bd3
1920s	3	33%	67%	—	—
1930s	19	47%	53%	—	—
1940s	30	67%	30%	3%	—
1950s	57	65%	30%	5%	—
1960s	100	76%	14%	10%	—
1970s	154	84%	11%	3%	—
1980s	265	84%	8%	7%	0%
1990s	965	75%	16%	8%	0%
2000s	1367	73%	18%	8%	0%
2010s	1525	81%	13%	6%	0%
2020s	253	86%	9%	4%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.Qc2	81%	86%	▲ +5.1%
9.Nd2	13%	9%	▼ -3.8%
9.Bg5	6%	4%	▼ -1.6%
9.Bd3	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 6 parties
Smyslov, Vladimir — 3 parties
Anand, Viswanathan — 2 parties
Tal, Mikhail — 1 partie
Ding, Liren — 1 partie

Parties historiques

9.Qc2 — 77.2% (3656 parties)

1926 — Acebey Michel, Veroska vs Davidson, Jacques — 0-1 — Semmering AUT
1931 — Michell, Reginald vs Flohr, Salo — 0-1 — Waverley Hotel
1931 — Michell, Reginald vs Tylor, Theodore Henry — 1-0 — Worcester
1935 — Lilienthal, Andor vs Kan, Ilya A — 1-0 — Moscow RUS
1935 — Cristia, Jose Maria vs Vinuesa, Juan — 0-1 — Buenos Aires ARG

9.Nd2 — 15.3% (725 parties)

1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — den Haag m
1928 — Bogoljubow, Efim vs Euwe, Max — 1-0 — The Netherlands
1931 — Ebralidze, Alexandre vs Kasparian, Mathis — 0-1 — Tbilisi GEO
1932 — Flohr, Salo vs Bogoljubow, Efim — 1-0 — Bad Sliac
1932 — Flohr, Salo vs Euwe, Max — 1/2-1/2 — Karlovy Vary

9.Bg5 — 6.9% (326 parties)

1949 — Jenei, Ferenc vs Popa Toma — 1-0 — Bucharest ROU
1953 — Navarovszky, Laszlo vs Sandor, Bela — 0-1 — HUN-ch Budapest HUN
1955 — Koehler, Sandor vs Demeny, Antal — 0-1 — Pecs
1958 — Sandor, Bela vs Kluger, Gyula — 1-0 — HUN-ch Budapest HUN
1962 — Gross, Benjamin vs Osbun, Erik — 0-1 — Hamilton Air Force Base

9.Bd3 — 0.3% (16 parties)

1981 — Krohg, Georg A vs Svedenborg, Dag — 0-1 — Tromsoe
1990 — Mertens, Frans vs Pancras, Paul — 1/2-1/2 — Wijk aan Zee NED
1992 — Acero Guerra, Diego vs Boxall, Graham — 1/2-1/2 — Manila PHI
1995 — Borkenhagen, Andreas vs Schwahn, Christian — 1-0 — GER
1999 — De Elias Martinez, Fernando vs Schott, Thomas E — 1-0 — ?

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