E97z — King’s Indian: Mar del Plata, 9.Nd2 a5 10.a3 Nd7 11.Rb1 f5 12.b4

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Nd2 a5 10.a3 Nd7 11.Rb1 f5 12.b4 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte c4, case forte b5, case forte d5, Be2 actif, paire de fous.
Faiblesses adverses : Bc8 enfermé.
Problèmes : Bc1 enfermé.
Plans :
● Be3 — Développer Bc1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e5, paire de fous.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bc8 enfermé.
Plans :
● ...Bf5 — Développer Bc8
● ...c6 — Rupture
● ...c5 — Rupture
● ...f4 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E97z — Mar del Plata

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Nd2 a5 10.a3 Nd7 11.Rb1 f5 12.b4

Eval: [+0.26]

Les coups candidats

12…Kh8 — 75.9% (1358 parties)

Ambassadeurs : Gleizerov, Evgeny (22x), Epishin, Vladimir (16x), Lputian, Smbat (16x), Chuchelov, Vladimir (16x), Ulybin, Mikhail (14x), Kasparov, Garry (13x), Gelfand, Boris (13x), Dolmatov, Sergey (12x)

12…axb4 — 14.4% (258 parties)

Ambassadeurs : Solonar, Stefan (5x), Harestad, Hans Krogh (4x), Doroshkievich, Vladimir K (3x), Whiteley, Andrew J (3x), Farago, Ivan (2x), Antunac, Goran (2x), Sznapik, Aleksander (2x), Timoscenko, Gennadij (2x)

12…b6 — 4.5% (80 parties)

Ambassadeurs : Mortensen, Erling (2x), Spraggett, Kevin (2x), Blees, Albert (2x), Riemersma, Li (2x), Berg, Klaus (2x), Kasparov, Garry (2x), Petrakov, A. (2x), Farago, Ivan (2x)

12…Nf6 — 4.2% (75 parties)

Ambassadeurs : Ulybin, Mikhail (4x), Nikolaidis, Ioannis NA (2x), Shabalov, Alexander (2x), Guerra Navarro, Pablo (1x), Rodriguez Talavera, Juan Carlos (1x), Dautov, Rustem (1x), Ubilava, Elizbar (1x), Schaufelberger, Heinz (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12…Kh8	12…axb4	12…b6	12…Nf6
<1800	10	80%	10%	10%	—
1800-2200	302	66%	22%	6%	5%
2200-2600	1037	77%	15%	3%	4%
2600+	89	94%	2%	2%	1%

Évolution par décennie (% des parties)

Décennie	N parties	12…Kh8	12…axb4	12…b6	12…Nf6
1970s	8	—	50%	38%	12%
1980s	108	56%	19%	21%	2%
1990s	991	80%	11%	4%	4%
2000s	437	78%	16%	2%	3%
2010s	228	69%	20%	4%	6%
2020s	18	56%	28%	6%	11%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12…Kh8	69%	56%	▼ -13.3%
12…axb4	20%	28%	▲ +7.6%
12…b6	4%	6%	▲ +2.0%
12…Nf6	6%	11%	▲ +5.0%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 10 parties
Karpov, Anatoly — 3 parties
Kramnik, Vladimir — 2 parties
Ju, Wenjun — 2 parties
Karpov, Aleksandr — 1 partie
Ding, Liren — 1 partie

Parties historiques

12…Kh8 — 75.9% (1358 parties)

1985 — Prystenski, Arthur vs Talbot, Gerard — 1/2-1/2 — Canada corr
1987 — Rashkovsky, Nukhim N vs Loginov, Valery A — 1/2-1/2 — Tashkent UZB
1987 — Dokhoian, Yury vs Loginov, Valery A — 0-1 — Pavlodar
1988 — Ftacnik, Lubomir vs Nunn, John D M — 1/2-1/2 — Groningen Groningen NED
1988 — Ruzele, Darius vs Kuzmin, Alexey — 0-1 — Blagoveshchensk

12…axb4 — 14.4% (258 parties)

1971 — Schauwecker, Meinrad vs Biriescu, Ioan — 1/2-1/2 — Groningen NED
1975 — Vaganian, Rafael A vs Doroshkievich, Vladimir K — 1-0 — Erevan ch-URS
1979 — Antunac, Goran vs Sznapik, Aleksander — 1/2-1/2 — Zagreb CRO
1979 — Antunac, Goran vs Sznapik, Aleksander — 1/2-1/2 — Zagreb CRO
1981 — Vilela De Acuna, Jose Luis vs Pavlov, Mircea-Sergiu-Aurelian — 1/2-1/2 — Halle GER

12…b6 — 4.5% (80 parties)

1972 — Langeweg, Kick vs Savon, Vladimir — 1/2-1/2 — Wijk aan Zee NED
1974 — Sosonko, Gennadi vs Ligterink, Gert — 1/2-1/2 — Leeuwarden ch-NED
1978 — Vilela De Acuna, Jose Luis vs Rodriguez Cespedes, Amador — 1-0 — Cuba
1980 — Magerramov, Elmar vs Kengis, Edvins — 0-1 — Riga LAT
1983 — Odendahl, Steven vs Spraggett, Kevin — 1-0 — Can. Open, Toronto

12…Nf6 — 4.2% (75 parties)

1970 — Schaufelberger, Heinz vs Toran Albero, Roman — 0-1 — Malaga ESP
1989 — Guerra Navarro, Pablo vs Rodriguez Talavera, Juan Carlos — 0-1 — Seville ESP
1989 — Dautov, Rustem vs Ubilava, Elizbar — 1-0 — Daugavpils LAT
1990 — Shirov, Alexei vs Ivanovic, Bozidar — 1-0 — Manila PHI
1990 — Schoeneberg, Guenter vs Lausch, S. — 1-0 — corr WT/M

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a3→b4, c4→d5, e4→d5	● d6→e5, g6→f5, c7→d6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● c4 (2v0), ● b5 (2v0), ● d5 (3v1)	● e5 (3v0)
Cases faibles	—	—
Centre	● d5 (3v1), ● e4 (2v1)	● d4 (1v0), ● e5 (3v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Be2	● Be2 Actif (mob. 4)
Bg7		● Bg7 Ok (mob. 3)
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, ● f2-f3	● …c7-c6, ● …c7-c5, ● …f5-f4

Partie
4. World Blitz 2008 – Round 1 – Gelfand, Boris – 0-1 – Grischuk, Alexander – G2 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
7. World Team Championship 2010 – Round 4 – Roiz, Michael – 1/2-1/2 – Halkias, Stelios – G61 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Biel Interzonal 1993 – Round 12 – Gurevich, Mikhail – 1/2-1/2 – Ivanchuk, Vasyl – G268 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Biel Interzonal 1993 – Round 4 – Epishin, Vladimir – 1/2-1/2 – Van Wely, Loek – G92 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. Rb1 Nd7
Biel Interzonal 1993 – Round 8 – Khalifman, Alexander – 1/2-1/2 – Kamsky, Gata – G186 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Corus 2000 – Round 1 – Lputian, Smbat – 0-1 – Piket, Jeroen – G6 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. Rb1 Nd7
Corus A 2008 – Round 2 – Kramnik, Vladimir – 1/2-1/2 – Radjabov, Teimour – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Dortmund 1992 – Round 3 – Kamsky, Gata – 1-0 – Kasparov, Garry – G16 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Interpolis 1993 – Round 1 – Gurevich, Mikhail – 1-0 – Amoros Marin, Marcos – G62 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. d4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Linares 1992 – Round 3 – Ivanchuk, Vasyl – 1/2-1/2 – Kasparov, Garry – G15 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Linares 1992 – Round 4 – Ivanchuk, Vasyl – 1-0 – Gelfand, Boris – G16 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. Rb1 Nd7
Linares 1993 – Round 1 – Ljubojevic, Ljubomir – 0-1 – Kasparov, Garry – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. Rb1 Nd7
Manila Interzonal 1990 – Round 1 – Khalifman, Alexander – 1/2-1/2 – Torre, Eugenio – G8 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Manila Interzonal 1990 – Round 11 – Illescas Cordoba, Miguel – 1/2-1/2 – Ivanovic, Bozidar – G190 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. d4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Manila Interzonal 1990 – Round 12 – Vaganian, Rafael A – 1/2-1/2 – Marin, Mihail – G207 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Manila Interzonal 1990 – Round 2 – Illescas Cordoba, Miguel – 0-1 – Khalifman, Alexander – G25 1. c4 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Manila Interzonal 1990 – Round 9 – Shirov, Alexei – 1-0 – Ivanovic, Bozidar – G152 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be2 d6 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Moskou ch-URS 1988 – Round 1 – Gavrikov, Viktor – 1/2-1/2 – Kasparov, Garry – G31 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Olympiad 2002 – Round 3 – Tratar, Marko – 0-1 – Ye, Jiangchuan – G74 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Paris Immopar rapid 1991 – Round 1 – Khalifman, Alexander – 0-1 – Kasparov, Garry – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Paris Immopar rapid 1991 – Round 2 – Gelfand, Boris – 0-1 – Kasparov, Garry – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
Tilburg 1991 – Round ? – Karpov, Anatoly – 1/2-1/2 – Kasparov, Garry – G15 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. Rb1 Nd7
Tilburg 1991 – Round 7 – Karpov, Anatoly – 1/2-1/2 – Kasparov, Garry – G7 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. Rb1 Nd7
Tilburg NED 1991 – Round ? – Karpov, Anatoly – 1/2-1/2 – Kasparov, Garry – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. Rb1 Nd7
Turin ol (Men) 37th 2006 – Round 8 – Beliavsky, Alexander G – 1-0 – Kotronias, Vasilios – G103 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
World Cup 1989 – Round 1 – Salov, Valery – 0-1 – Short, Nigel D – G24 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7
World Cup 1989 – Round 1 – Salov, Valery – 1/2-1/2 – Nunn, John D M – G34 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Nd7

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