E97c — King’s Indian: Mar del Plata, 8.Be3 Ng4

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.Be3 Ng4 * ○ 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, d5 et g5, un fou actif en e3 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

Plans. h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu au centre (rupture d6-d5).

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

Côté adverse. Le fou enfermé en e2.

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

Plans. ...d5 (Rupture) ; ...f6 (Rupture) ; ...f5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (3v0), ● g5 (2v1)	—
Cases faibles	● d4	—
Centre	● d4 (3v2), ● d5 (3v0), ● e4 (1v0)	● e5 (4v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Enfermé (mob. 1)
Be3	● Be3 Actif (mob. 5)
Bg7		● Bg7 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 3)
Paire de fous	● Oui	● Oui
Non développées	1 (● 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	● …d6-d5, ● …f7-f6, ● …f7-f5

Partie
1. GRENKE Chess Classic 2013 – Round 6.2 – Fridman, Daniel – 0-1 – Naiditsch, Arkadij – G14 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
1954 Belgrade – Round 16 – Milic, Borislav – 1/2-1/2 – Joppen, E. – G135 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 Bf6 10. Bxf6 Nxf6
1959 Kragujevac ch14-YUG – Round 1 – Trifunovic, Petar – 1-0 – ? – G52 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 e5 6. Nf3 O-O 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
1959 Kragujevac ch14-YUG – Round 1 – Trifunovic, Petar – 1/2-1/2 – Janosevic, Dragoljub – G22 1. c4 Nf6 2. Nc3 g6 3. d4 d6 4. Nf3 Bg7 5. e4 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
1959 URS Team Ch – Round ? – Giorgadze, Tamaz – 1/2-1/2 – Shianovsky, Vladislav I – G111 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 Qe7
1960 New York ch-USA – Round 4 – Reshevsky, Samuel – 1/2-1/2 – Fischer, Raphael – G17 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 Bf6 10. Bxf6 Nxf6
1961 URS Ch sf Batumi GEO – Round ? – Roizman, Abram Y – 0-1 – Gipslis, Aivars – G17 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 Nh6
1961 URS Ch sf Batumi GEO – Round ? – Roizman, Abram Y – 1-0 – Arakelov, Ilya – G19 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 Bf6 10. Bxf6 Nxf6
1962 Stockholm Interzonal – Round 3 – Uhlmann, Wolfgang – 1-0 – Schweber, Samuel – G22 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
1962 Whitby ch-BCF – Round 1 – Kottnauer, Cenek – 1-0 – Hindle, Owen M – G8 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
1964 Capablanca Memorial – Round 2 – Rossetto, Hector – 1-0 – Udovcic, Mijo – G27 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 Qd7 10. d5 Ne7
1966 La Habana olm prel – Round 3 – Kolarov, Atanas S. – 1-0 – Abanto Aguilar, Ernesto Juan Daniel – G50 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 Qd7 10. d5 Ne7
1966 US Open – Round 11 – Benko, Pal – 1-0 – Saidy, Anthony – G66 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
1967 Moscow – Round 1 – Najdorf, Miguel – 1/2-1/2 – Uhlmann, Wolfgang – G12 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 Kh8
1969 Palma de Mallorca – Round 16 – Unzicker, Wolfgang – 1/2-1/2 – Spassky, Boris Vasily – G141 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 Qd7
30. ECC Open 2014 – Round 6.1 – Lysyj, Igor – 1/2-1/2 – Radjabov, Teimour – G119 1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
41. Olympiad Open 2014 – Round 5.25 – Pelletier, Yannick – 1-0 – Markos, Jan – G351 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
43. Olympiad 2018 – Round 10.18 – Sibashvili, Giorgi – 1-0 – Firouzja, Alireza – G642 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
Baku FIDE Grand Prix 2014 – Round 4.2 – Grischuk, Alexander – 1/2-1/2 – Nakamura, Hikaru – G20 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5
World Blitz 2015 – Round 11.5 – Ghaem Maghami, Ehsan – 1/2-1/2 – Grischuk, Alexander – G699 1. c4 g6 2. d4 Bg7 3. Nf3 Nf6 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bh4 g5

E97c — 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.Be3 Ng4

Eval: [+0.34]

Les coups candidats

9.Bg5 — 98.9% (1609 parties)

Ambassadeurs : Cebalo, Miso (44x), Vera Gonzalez-Quevedo, Reynaldo (17x), Moehring, Guenther (16x), Fish, Gennadij (16x), Van Wely, Loek (14x), Chekhov, Valery A (13x), Portisch, Lajos (12x), Uhlmann, Wolfgang (11x)

9.d5 — 0.6% (10 parties)

Ambassadeurs : Geissler, Grit (1x), Lauterbach, Ingrid (1x), Hassan (1x), Barcenilla, Rogelio (1x), Fenske, Wolfgang (1x), Bakos, Andreas (1x), Ruhl, Clemens (1x), Rothkugel, Wolfgang (1x)

9.h3 — 0.2% (3 parties)

Ambassadeurs : Abarca Ramos, Aliana Edlimar (1x), Arroniz Velazquez, Roberto (1x), Hocevar, Miha (1x), Srebrnic, Marko (1x), Tegel, Frank (1x), Otero Garzon, Gustavo (1x)

9.Rc1 — 0.1% (2 parties)

Ambassadeurs : Kalivoda, Jiri (1x), Konigova, P. (1x), Davis, John (1x), Tamondong, Cesar (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.Bg5	9.d5	9.h3	9.Rc1
<1800	12	83%	8%	—	—
1800-2200	358	98%	1%	1%	—
2200-2600	981	100%	0%	—	—
2600+	26	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9.Bg5	9.d5	9.h3	9.Rc1
1950s	28	100%	—	—	—
1960s	33	100%	—	—	—
1970s	21	100%	—	—	—
1980s	142	100%	—	—	—
1990s	555	99%	1%	0%	0%
2000s	306	98%	1%	1%	—
2010s	460	99%	0%	—	0%
2020s	82	98%	2%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.Bg5	99%	98%	▼ -1.6%
9.d5	0%	2%	▲ +2.0%
9.h3	0%	0%	+0.0%
9.Rc1	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 2 parties
Botvinnik, Mikhail — 1 partie
Gukesh D — 1 partie

Parties historiques

9.Bg5 — 98.9% (1609 parties)

1953 — Taimanov, Mark vs Boleslavsky, Isaac — 1/2-1/2 — Zurich SUI
1953 — Golombek, Harry vs Rabar, Braslav — 1/2-1/2 — Opatija IT
1953 — Reshevsky, Samuel vs Najdorf, Miguel — 1-0 — Buenos Aires ARG
1953 — Reshevsky, Samuel vs Najdorf, Miguel — 1-0 — Buenos Aires ARG
1953 — Reshevsky, Samuel vs Najdorf, Miguel — 1-0 — Buenos Aires ARG

9.d5 — 0.6% (10 parties)

1990 — Geissler, Grit vs Lauterbach, Ingrid — 1/2-1/2 — Dresden GER
1991 — Fenske, Wolfgang vs Bakos, Andreas — 0-1 — St Ingbert
1994 — Hassan vs Barcenilla, Rogelio — 0-1 — Moscow ol women
2007 — Saulyte, Evelina vs Kaariainen, Janika — 1/2-1/2 — Narva
2009 — Ruhl, Clemens vs Rothkugel, Wolfgang — 0-1 — Duesseldorf GER

9.h3 — 0.2% (3 parties)

1995 — Abarca Ramos, Aliana Edlimar vs Arroniz Velazquez, Roberto — 1/2-1/2 — San Sebastian ESP
2005 — Hocevar, Miha vs Srebrnic, Marko — 0-1 — Sentjur
2006 — Tegel, Frank vs Otero Garzon, Gustavo — 0-1 — ?

9.Rc1 — 0.1% (2 parties)

1997 — Kalivoda, Jiri vs Konigova, P. — 1/2-1/2 — GP Mladi op Litomysl CZE
2018 — Davis, John vs Tamondong, Cesar — 0-1 — ICCF