E68i — King’s Indian: Fianchetto, Classical, 8.e4 a6

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 a6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d5, case forte g5, paire de fous.
Faiblesses adverses : arriéré f7, Bg7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé, arriéré f2.
Plans :
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : paire de fous.
Faiblesses adverses : arriéré f2, Bc1 enfermé, Bg2 enfermé.
Problèmes : Bg7 enfermé, Bc8 enfermé, arriéré f7.
Plans :
● ...Bg4 — Développer Bc8, clouer Nf3
● ...c6 — Rupture
● ...c5 — Rupture
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E68i — 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 a6

Eval: [+0.62]

Les coups candidats

9.h3 — 31.8% (604 parties)

Ambassadeurs : Gallagher, Joseph G. (7x), Tratar, Marko (6x), Polzin, Rainer (5x), Weindl, Alfred (4x), Solonar, Stefan (4x), Dizdar, Goran (4x), Eidelson, Rakhil (4x), Markus, Robert (4x)

9.Re1 — 31.2% (592 parties)

Ambassadeurs : Kochyev, Alexander (10x), Vogt, Lothar (8x), Jedlicka, Ales (8x), Heinig, Wolfram, Dr. (6x), Vukic, Milan (5x), Knaak, Rainer (5x), Tregubov, Pavel V. (5x), Tringov, Georgi P (4x)

9.Qc2 — 16.8% (319 parties)

Ambassadeurs : Stohl, Igor (5x), Knaak, Rainer (4x), Lyrberg, Patrik (4x), Maletin, Pavel (4x), Dixit, Nikhil (4x), Pruijssers, Roeland (4x), Tukmakov, Vladimir B (3x), Sasikiran, Krishnan (3x)

9.dxe5 — 6.7% (128 parties)

Ambassadeurs : Kochyev, Alexander (2x), Vogt, Lothar (2x), Stevic, Hrvoje (2x), Petrov, Jole (2x), Hausner, Ivan (2x), Agdestein, Simen (1x), Tal, Mikhail (1x), Timoscenko, Gennadij (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.h3	9.Re1	9.Qc2	9.dxe5
<1800	21	29%	24%	19%	10%
1800-2200	442	38%	27%	14%	7%
2200-2600	1243	30%	34%	18%	6%
2600+	42	24%	14%	31%	7%

Évolution par décennie (% des parties)

Décennie	N parties	9.h3	9.Re1	9.Qc2	9.dxe5
1950s	2	50%	—	—	—
1960s	2	50%	—	—	—
1970s	39	13%	62%	13%	—
1980s	124	18%	44%	17%	6%
1990s	314	29%	36%	13%	5%
2000s	665	35%	32%	11%	8%
2010s	628	33%	26%	23%	7%
2020s	124	32%	20%	29%	6%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.h3	33%	32%	▼ -0.7%
9.Re1	26%	20%	▼ -5.5%
9.Qc2	23%	29%	▲ +6.3%
9.dxe5	7%	6%	▼ -1.7%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 7 parties
Tal, Mikhail — 1 partie
Karpov, Aleksandr — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Karpov, Anatoly — 1 partie
Ding, Liren — 1 partie

Parties historiques

9.h3 — 31.8% (604 parties)

1954 — Streater, RF. vs Phillips, Alan — 0-1 — Nottingham ch-BCF
1965 — Belistri, Fernando vs Bouaziz, Slim — 1-0 — Wch U20 f-C Barcelona ESP
1970 — Anderson, Bruce R vs Barreira Silva, Davi — 1-0 — Siegen ol fin-E
1973 — Young, JohnJoseph vs Bonner, Gerald — 1/2-1/2 — Bearsden SCO
1976 — Nakanishi, Seido vs Naile Alain — 0-1 — Joao Pessoa

9.Re1 — 31.2% (592 parties)

1975 — Keske, Art vs Zageris, Art — 1-0 — Cardinal Open,OH
1975 — Vaganian, Rafael A vs Bronstein, David I — 1-0 — Vilnius LTU
1976 — Gheorghiu, Florin vs Hug, Werner — 1/2-1/2 — Crans Montana
1976 — Gereben, Erno vs Wirthensohn, Heinz — 1/2-1/2 — Vitrobud op Sandomierz
1976 — Ornstein, Axel vs Wirthensohn, Heinz — 1/2-1/2 — It Hannover GER

9.Qc2 — 16.8% (319 parties)

1976 — Van der Vliet, Fred vs Ligterink, Gert — 1-0 — Leeuwarden ch-NED
1977 — Stean, Michael F vs Ivanovic, Bozidar — 1/2-1/2 — Bar
1977 — Flesch, Janos vs Torre, Eugenio — 1/2-1/2 — Biel Biel SUI
1977 — Sturua, Zurab vs Kuporosov, Viktor — 1-0 — Riga LAT
1977 — Kirov, Nino vs Knaak, Rainer — 1/2-1/2 — Balashiha

9.dxe5 — 6.7% (128 parties)

1981 — Hausner, Ivan vs Vogt, Lothar — 1/2-1/2 — Halle GER
1981 — Buturin, Vladimir vs Cabrilo, Goran — 0-1 — Lvov UKR
1982 — Timoscenko, Gennadij vs Kochyev, Alexander — 1/2-1/2 — Pavlodar ch-URS
1984 — Knuth, Hannes vs Kaminski, Uwe — 1/2-1/2 — Dresden GER
1985 — Agdestein, Simen vs Tal, Mikhail — 1/2-1/2 — Naestved DEN

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	● f2	● f7
Chaînes	● f2→g3, h2→g3	● d6→e5, b7→a6, c7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

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, ● d4-d5	● …c7-c6, ● …c7-c5, ● …d6-d5

Partie
? 1986 – Round ? – Jussupow, Artur – 1/2-1/2 – Acosta Reyes, Eduardo – G6 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 a6 9. d5 Ne8 10. Bd2 c5
36. Olympiad 2004 – Round 2 – Khalifman, Alexander – 1/2-1/2 – Gallagher, Joseph G. – G43 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 a6 9. h3 exd4 10. Nxd4 Re8
40. Olympiad Open 2012 – Round 1.22 – Leitao, Rafael – 1-0 – Haddouche, Mohamed – G39 1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 e5 8. e4 a6 9. Qc2 exd4 10. Nxd4 Re8
40. Olympiad Open 2012 – Round 5.06 – Noritsyn, Nikolay – 0-1 – Mamedov, Rauf – G300 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 a6 9. h3 exd4 10. Nxd4 Rb8
42. Olympiad 2016 – Round 5.44 – Kojima, Shinya – 0-1 – Amonatov, Farrukh – G370 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 a6 9. Qc2 exd4 10. Nxd4 Ne5
42. Olympiad 2016 – Round 9.84 – Meshkov, Yuri A. – 0-1 – Amonatov, Farrukh – G668 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 a6 9. b3 b5 10. dxe5 dxe5
Amber-rapid 5th 1996 – Round 6 – Nikolic, Predrag – 1-0 – Polgar, Judit – G27 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. e4 a6 9. dxe5 dxe5 10. h3 b5
FIDE World Cup 2017 – Round 4.2 – Giri, Anish – 1/2-1/2 – Ivanchuk, Vasyl – G378 1. c4 e5 2. Nc3 d6 3. g3 g6 4. d4 Nd7 5. Nf3 Bg7 6. Bg2 Ngf6 7. O-O O-O 8. e4 a6 9. Qc2 exd4 10. Nxd4 Re8
FIDE World Cup 2019 – Round 1.2 – Esipenko, Andrey – 1/2-1/2 – Ponomariov, Ruslan – G94 1. d4 Nf6 2. Nf3 d6 3. g3 Nbd7 4. c4 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 e5 8. e4 a6 9. Qc2 exd4 10. Nxd4 Rb8
FIDE-Wch k.o. 1999 – Round 2.2 – Dizdar, Goran – 0-1 – Movsesian, Sergei – G60 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 a6 9. h3 b5 10. dxe5 dxe5
Leon Man+Comp m 1998 – Round 8 – Kasparov, Garry – 0-1 – Topalov, Veselin – G1 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 O-O 6. O-O e5 7. d4 Nbd7 8. e4 a6 9. h3 exd4 10. Nxd4 Re8
Melody Amber, Rapidplay, Monaco 1995 – Round 6 – Nikolic, Predrag – 0-1 – Polgar, Judit – G19 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 a6 9. Rb1 b5 10. cxb5 axb5
TCh-RUS 2005 – Round 2 – Filippov, Vladimir Al. – 0-1 – Dyachkov, Sergej – G18 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 a6 9. Qc2 exd4 10. Nxd4 Re8
TCh-RUS 2005 – Round 4 – Belov, Vladimir – 0-1 – Khismatullin, Denis – G62 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 a6 9. d5 b5 10. cxb5 axb5
World Blitz 2015 – Round 2.58 – Cheparinov, Ivan – 1-0 – Schmaltz, Roland – G118 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 a6 9. h3 Rb8 10. Be3 exd4
World Blitz 2015 – Round 3.80 – Nikolic, Predrag – 1-0 – Thiede, Lars – G206 1. d4 g6 2. Nf3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. c4 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 a6 9. dxe5 Nxe5 10. Nxe5 dxe5
World Blitz 2021 – Round 6.63 – Howell, David W L – 0-1 – Murzin, Volodar – G373 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 a6 9. h3 b5 10. dxe5 dxe5
World Blitz 2022 – Round 7.58 – Vakhidov, Jakhongir – 1-0 – Jobava, Baadur – G380 1. c4 g6 2. Nc3 Bg7 3. Nf3 Nf6 4. g3 d6 5. d4 Nbd7 6. Bg2 e5 7. O-O O-O 8. e4 a6 9. Qc2 c6 10. Rd1 Qc7

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