E68k — King’s Indian: Fianchetto, Classical, 8.e4 c6 9.Rb1

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.Rb1 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte g5 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8.

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

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2.

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

Plans. ...Bg4 (Développer Bc8, clouer Nf3) ; ...c5 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● d6→e5, b7→c6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v2)	—

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	1 (c1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● d4-d5	● …c6-c5, ● …d6-d5

Partie
1951 Reggio Emilia – Round 11 – Ceccato, Vittorio – 1/2-1/2 – Wade, Robert G – G60 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. Nc3 e5 7. d4 Nbd7 8. e4 c6 9. Rb1 Qb6 10. dxe5 dxe5
1956 Moscow olm prel – Round 7 – Navabi, Abdolhossein – 0-1 – Szilagyi, Gyorgy Laszlo – G241 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a5 10. a4 exd4
1957 GBR Ch 44th – Round 4.7 – Cafferty, Bernard – 1/2-1/2 – Gibbs, Peter Campbell – G18 1. c4 e5 2. Nc3 Nf6 3. Nf3 d6 4. d4 Nbd7 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 c6 9. Rb1 Re8 10. d5 c5
1961 Buenos Aires ch-ARG – Round 13 – Bielicki, Carlos – 1/2-1/2 – Acosta Garcia, Rafael Isaac – G78 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 exd4 10. Nxd4 Re8
1961 Mar del Plata – Round 3 – Byrne, Ray – 1-0 – Quinones Carrillo, Oscar – G38 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a5 10. h3 exd4
1961 USA Ch Open 62th – Round 2 – Byrne, Robert E – 1-0 – Rubin Gene L – G6 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a5 10. h3 Qe7
1962 Varna olm – Round 7 – Byrne, Ray – 1-0 – Kchouk, Bechir – G295 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 c6 6. e4 d6 7. Nf3 Nbd7 8. O-O e5 9. Rb1 exd4 10. Nxd4 Nb6
1964 ARG Ch – Round 13 – Garcia Rodriguez, Raimundo – 1-0 – Pugach, Mario – G57 1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 e5 8. e4 c6 9. Rb1 a5 10. b3 Re8
1964 Buenos Aires – Round 11 – Bielicki, Carlos – 1/2-1/2 – Letelier Martner, Rene – G95 1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. g3 Nf6 5. Bg2 O-O 6. Nf3 Nbd7 7. O-O c6 8. e4 e5 9. Rb1 Re8 10. h3 a5
1964 Buenos Aires – Round 3 – Byrne, Robert E – 1-0 – Rossetto, Hector – G28 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 a5 10. h3 Re8
1964 Tel Aviv olm fin-A – Round 10 – Garcia Rodriguez, Raimundo – 1-0 – Medina Garcia, Antonio Angel – G215 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 a6 10. dxe5 dxe5
1965 Buenos Aires ch-ARG – Round 10 – Behrensen, Jorge – 0-1 – Acosta Garcia, Rafael Isaac – G65 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. g3 O-O 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a5 10. b3 exd4
1965 Hungary – Round 1 – Flesch, János – 0-1 – Barczay, Laszlo – G32 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 h6 10. Re1 Ne8
1965 Mar del Plata – Round 9 – Bolbochan, J. – 1/2-1/2 – Stein, Leon Rico – G74 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 a5 10. Re1 exd4
1965 Zagreb – Round 4 – Filip, Marius Liviu – 1/2-1/2 – ? – G47 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 e5 5. e4 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O c6 9. Rb1 a5 10. h3 Ne8
1966 Den Haag zt – Round 6 – Kavalek, Lubomir – 1-0 – Garcia Aruca, Francisco Fernando – G34 1. c4 Nf6 2. Nc3 d6 3. d4 e5 4. Nf3 Nbd7 5. e4 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O c6 9. Rb1 Re8 10. h3 exd4
1966 Hungary – Round 1 – Flesch, János – 0-1 – Barcza, Gedeon – G40 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a6 10. dxe5 Nxe5
1966 La Habana olm prel – Round 7 – Panno, Oscar – 1-0 – Cassidy, Raymond – G269 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 a6 10. Qc2 Qe7
1966 Panamerican – Round 1 – Bielicki, Carlos – 1-0 – Garcia Martinez, Silvino – G6 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. d4 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 Re8 10. h3 a5
1966 Santa Monica – Round 1 – Portisch, Lajos – 1/2-1/2 – Najdorf, Miguel – G5 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 Re8 10. h3 a5
1966 Santa Monica – Round 13 – Donner, Jan-Hein – 0-1 – Fischer, Robert J – G55 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a6 10. b4 exd4
1966 Santa Monica – Round 15 – Donner, Jan-Hein – 1/2-1/2 – Reshevsky, Samuel – G62 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a6 10. h3 Re8
1967 CSR Ch – Round 13 – Smejkal, Jan – 1/2-1/2 – Ryc, Ivo – G86 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. d4 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a6 10. Re1 Re8
1967 CSR Ch – Round 3 – Kozma, Julius – 1-0 – Ryc, Ivo – G19 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a6 10. h3 exd4
1967 Szczecin ch POL – Round 1 – Gromek, Jozef – 1/2-1/2 – Adamski, Jan – G1 1. c4 Nf6 2. Nc3 e5 3. g3 c6 4. Nf3 d6 5. d4 Nbd7 6. Bg2 g6 7. O-O Bg7 8. e4 O-O 9. Rb1 a5 10. a3 exd4
1967 Vrnjacka Banja zt – Round 7 – Jansa, Vlastimil – 1-0 – Vizantiadis, Lazaros – G45 1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. Nc3 e5 5. g3 g6 6. Bg2 Bg7 7. O-O O-O 8. e4 c6 9. Rb1 Rb8 10. b4 Qc7
1968 Capablanca Memorial – Round 1 – O'Kelly, Albéric de Galway – 0-1 – Suetin, Alexey S – G27 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a6 10. Re1 b5
1968 It Buesum GER – Round 8 – O'Kelly de Galway, Alberic – 1-0 – Medina-Garcia, Antonio – G35 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 Re8 10. h3 a6
1968 YUG Ch 23th – Round 8 – Stupica, Janez – 1-0 – Sines, Josip – G37 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 Qc7 10. h3 Re8
1969 Corr – Round ? – Nielsen, Verner – 1/2-1/2 – Nielsen, Axel – G5 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. g3 Nd7 5. Nf3 c6 6. Bg2 Ngf6 7. O-O O-O 8. e4 e5 9. Rb1 Qc7 10. b4 exd4
1969 Hoogovens – Round 7 – Donner, Jan-Hein – 0-1 – Geller, Efim P – G55 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 exd4 10. Nxd4 Re8
1970 Palma de Mallorca Interzonal – Round 15 – Filip, Miroslav – 1/2-1/2 – Minic, Dragoljub – G262 1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 Qe7 10. b3 Ne8
1972 Skopje ol (Men) fin-A – Round 1 – Ribli, Zoltan – 1/2-1/2 – Tal, Mihail – G422 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. Rb1 a6 10. Qc2 b5
1975 URS Team Ch – Round 1 – Slutzky, Leonid – 1/2-1/2 – Lutikov, Anatoly S – G570 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. Rb1 a6 10. dxe5 dxe5
FIDE WCh KO 2001 – Round 1.4 – Ehlvest, Jaan – 1-0 – Radjabov, Teimour – G150 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. O-O e5 7. d4 Nbd7 8. e4 c6 9. Rb1 a6 10. h3 b5

E68k — 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.e4 c6 9.Rb1

Eval: [+0.31]

Les coups candidats

9…a5 — 29.2% (159 parties)

Ambassadeurs : Szmetan, Jorge (7x), Wojtkiewicz, Aleksander (7x), Budde, Vladimir (3x), Szekely, Panna Szandra (3x), Byrne, Ray (3x), Byrne, Robert E (2x), Bolbochan, J. (2x), Litmanowicz, Miroslawa (2x)

9…Re8 — 21.1% (115 parties)

Ambassadeurs : Flesch, Janos (3x), Jacobsen, Bo (3x), Horvath, Jozsef (3x), Wojtkiewicz, Aleksander (3x), Bielicki, Carlos (2x), Eliskases, Erich (2x), O'Kelly de Galway, Alberic (2x), Medina-Garcia, Antonio (2x)

9…exd4 — 18.9% (103 parties)

Ambassadeurs : Wojtkiewicz, Aleksander (7x), Szmetan, Jorge (6x), Geller, Efim P. (4x), Donner, Jan-Hein (3x), Filip, Miroslav (2x), Thipsay, Praveen M (2x), Kraehenbuehl, Gary (2x), Kunsztowicz, Uwe (2x)

9…a6 — 18.8% (102 parties)

Ambassadeurs : Hazai, Laszlo Dr. (5x), Vadasz, Laszlo (5x), Panno, Oscar (3x), Ost-Hansen, Jacob (3x), Burridge, Raymond John (3x), Bates, Richard A (3x), Ryc, Ivo (2x), Donner, Jan-Hein (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…a5	9…Re8	9…exd4	9…a6
<1800	4	—	25%	25%	—
1800-2200	118	29%	22%	19%	16%
2200-2600	276	31%	21%	22%	17%
2600+	3	67%	33%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…a5	9…Re8	9…exd4	9…a6
1950s	6	33%	33%	17%	—
1960s	40	22%	25%	12%	28%
1970s	92	28%	14%	10%	37%
1980s	67	31%	18%	16%	24%
1990s	139	28%	23%	25%	13%
2000s	88	32%	28%	23%	6%
2010s	106	29%	20%	20%	16%
2020s	6	50%	—	17%	17%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…a5	29%	50%	▲ +20.8%
9…Re8	20%	0%	▼ -19.8%
9…exd4	20%	17%	▼ -3.1%
9…a6	16%	17%	▲ +0.6%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie

Parties historiques

9…a5 — 29.2% (159 parties)

1953 — Bolbochan, J. vs Shocron, Alon — 1-0 — Buenos Aires ch-ARG
1956 — Navabi, Abdolhossein vs Szilagyi, Gyorgy Laszlo — 0-1 — Moscow RUS
1961 — Byrne, Ray vs Quinones Carrillo, Oscar — 1-0 — Mar del Plata ARG
1961 — Byrne, Robert E vs Rubin Gene L — 1-0 — San Francisco, CA USA
1964 — Garcia Rodriguez, Raimundo vs Pugach, Mario — 1-0 — Buenos Aires ARG

9…Re8 — 21.1% (115 parties)

1957 — Cafferty, Bernard vs Gibbs, Peter Campbell — 1/2-1/2 — Plymouth
1959 — Volovich, Anatoly vs Khasin, Abram — 0-1 — Moscow RUS
1964 — Eliskases vs Najdorf, Rafael — 1/2-1/2 — Buenos Aires ARG
1964 — Bielicki, Carlos vs Letelier Martner, Rene — 1/2-1/2 — Buenos Aires ARG
1964 — Eliskases, Erich vs Rubinetti, Jorge — 1/2-1/2 — Buenos Aires ARG

9…exd4 — 18.9% (103 parties)

1957 — Forintos, Gyozo V vs Liebert, Heinz — 1-0 — Reykjavik ISL
1961 — Bielicki, Carlos vs Acosta Garcia, Rafael Isaac — 1/2-1/2 — Buenos Aires ch-ARG
1962 — Byrne, Ray vs Kchouk, Bechir — 1-0 — Varna BUL
1962 — Tomson, Alexander vs Freeman, Michael J. — 1-0 — Marianske Lazne
1966 — Filip, Miroslav vs Jansa, Vlastimil — 1-0 — Harrachov

9…a6 — 18.8% (102 parties)

1964 — Garcia Rodriguez, Raimundo vs Medina Garcia, Antonio Angel — 1-0 — Tel Aviv ISR
1966 — Panno, Oscar vs Cassidy, Raymond — 1-0 — Havana CUB
1966 — Donner, Jan-Hein vs Fischer, Robert J — 0-1 — Santa Monica, CA USA
1966 — Sokolov, Vladimir vs Bogdanovic, Rajko — 1/2-1/2 — Vukovar
1966 — Donner, Jan-Hein vs Reshevsky, Samuel — 1/2-1/2 — Santa Monica, CA USA

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