E87a — King’s Indian: Saemisch, Orthodox, 7.d5

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Qd2 (Prépare O-O-O — 59 % des parties) ; Bd3 (Développer f1 — 26 % des parties) ; Nge2 (Développer g1 — 7 % des parties) ; g4 (Attaque à l'aile roi — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...c6 (Renforcer le centre — 42 % des parties) ; ...Nh5 (34 % des parties) ; ...Nbd7 (Développer b8 — 7 % des parties) ; ...Ne8 (6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● g2→f3, f3→e4, c4→d5, e4→d5	● d6→e5, c7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Be3	● Be3 Actif (mob. 10)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● g1, ● f1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● f3-f4	● …c7-c6

Partie
1936 Budapest – Round 14 – Szigeti, Miklos – 1/2-1/2 – Najdorf, Miguel – G54 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 O-O 6. Be3 e5 7. d5 Ne8 8. Bd3 f5 9. Qd2 Na6 10. Nge2 Nc5
1937 Tbilisi ch-URS – Round 1 – Makogonov, Vladimir – 1-0 – Kasparian, Genrikh – G73 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 Nd7
1940 URS-sf – Round 1 – Bondarevsky, Igor – 1/2-1/2 – Kasparian, Genrikh – G31 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 Qe7
1942 Chocen – Round ? – Richter, Emil – 1-0 – Tikovsky, Augustin – G24 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. g4 f5 9. gxf5 gxf5 10. Qd2 f4
1945 Tbilisi – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Tsintsadze, Data – G2 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 c5
1952 Helsinki olm – Round 1 – Decreton Keller, Henrique – 0-1 – Barendregt, Johan – G83 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. d5 O-O 7. Be3 Ne8 8. Bd3 f5 9. exf5 gxf5 10. Nge2 Nd7
1953 Bariloche – Round 7 – Eliskases, Erich – 1-0 – Reinhardt, Heinrich – G31 1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O Nd7 10. Bd3 Ndf6
1953 Bucharest – Round 1 – Boleslavsky, Isaac – 1/2-1/2 – Troianescu, Octav – G9 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 Nd7
1954 Leningrad – Round 1 – Koginov V – 1-0 – Aronson, Lev – G6 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 Nd7
1954 Montevideo – Round 14 – Corral, Hector – 1-0 – Horberg, Bengt-Eric – G106 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 Qe7
1954 Prague zt Prague CZE – Round 14 – Balanel, Ion – 1/2-1/2 – Solin, Ilya – G48 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O a5 10. Bd3 Na6
1955 Moscow Ch – Round 3 – Chistiakov, Alexander – 0-1 – Khasin, Abram – G17 1. c4 Nf6 2. Nc3 d6 3. d4 g6 4. e4 Bg7 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. Bd3 c5 10. Nge2 Nd7
1955 URS-USA telex – Round 2 – Taimanov, Mark E – 1/2-1/2 – Kashdan, Isaac – G7 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 e5 6. d5 O-O 7. Be3 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 b6
1955 Zagreb – Round 10 – Gligorić, Svetozar – 1-0 – Ivkov, Borislav – G106 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 Na6
1955 Zagreb – Round 14 – Trifunovic, Petar – 1-0 – Bertok, Mario Jr. – G142 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O f4 10. Bf2 Nf6
1956 CSR Ch sf – Round 2 – Dobias, Josef – 1/2-1/2 – Tepper, Marcel – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. g4 f5 9. gxf5 gxf5 10. Bd3 f4
1957 Danmarksmesterskabet – Round 5 – Andersen, Borge – 1-0 – Hage, Poul – G16 1. c4 Nf6 2. Nc3 g6 3. d4 d6 4. e4 Bg7 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. exf5 gxf5 10. O-O-O Nd7
1959 United States Open Championship – Round 2 – Osbun, Erik – 1/2-1/2 – Beitling, J. – G2 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. exf5 gxf5 10. Bd3 f4
1965 Marianske Lazne – Round 5 – Shamkovich, Leonid – 1-0 – Jimenez Zerquera, Eleazar – G23 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 O-O 6. Be3 e5 7. d5 Nfd7 8. Qd2 f5 9. exf5 gxf5 10. O-O-O a5
1967 Palma de Mallorca – Round 4 – Botvinnik, Mikhail – 1-0 – Corral Blanco, Juan Antonio – G26 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O Na6 10. Bd3 Nc5
1969 Palma de Mallorca – Round 15 – Bobotsov, Milko G – 0-1 – Diez del Corral, Jesus – G130 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 8. Qd2 f5 9. O-O-O Na6 10. Bd3 Nc5

E87a — Sämisch Variation, Closed Variation (1936)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5

Les coups candidats

7…c6 — 42.3% (3989 parties) →

Ambassadeurs : Pott, Brian (31x), Gligoric, Sofija (15x), Kozul, Zdenko (13x), Polugaevsky, Lev (12x), Gheorghiu, Florin (12x), Timman, Jan H (11x), Ree, Hans (10x), Thipsay, Praveen M (10x)

7…Nh5 — 33.8% (3185 parties) →

Ambassadeurs : Uhlmann, Wolfgang (16x), Gheorghiu, Florin (12x), Bazant, Petr (10x), Poldauf, Dirk (9x), Liberzon, Vladimir M (8x), Gligoric, Sofija (8x), Mroczek, Jacek (8x), Sundqvist, Christer (8x)

7…Nbd7 — 6.9% (653 parties) →

Ambassadeurs : Berube, Antoine (3x), Schuster, Carlos (2x), Hampek, Miroslav (2x), Tibenszkyne Kiss, Emese (2x), Willitzkat, Torsten (2x), Hesse, Maria (2x), Dion, Jean-Francois (2x), Igaz, Peter (2x)

7…Ne8 — 5.8% (547 parties)

Ambassadeurs : Jenc, Milan (3x), Tkachuk, Konstantyn (3x), Kos, Igor (2x), Atze, Burkhard (2x), Tal, Mikhail (2x), Del Solar, W. (2x), Korchnoi, Viktor (2x), Uhlmann, Wolfgang (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…c6	7…Nh5	7…Nbd7	7…Ne8
<1800	672	32%	28%	14%	9%
1800-2200	3894	38%	34%	8%	7%
2200-2600	2151	50%	40%	2%	2%
2600+	35	69%	31%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7…c6	7…Nh5	7…Nbd7	7…Ne8
1950s	294	20%	33%	5%	12%
1960s	393	51%	36%	2%	3%
1970s	393	49%	34%	3%	3%
1980s	698	56%	30%	3%	4%
1990s	2920	46%	35%	7%	5%
2000s	2527	41%	32%	9%	7%
2010s	1923	37%	34%	8%	6%
2020s	288	23%	41%	9%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…c6	37%	23%	▼ -13.7%
7…Nh5	34%	41%	▲ +6.9%
7…Nbd7	8%	9%	▲ +1.0%
7…Ne8	6%	8%	▲ +1.9%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 10 parties
Kasparov, Garry — 8 parties
Botvinnik, Mikhail — 7 parties
Tal, Mikhail — 7 parties
Anand, Viswanathan — 3 parties
Ding, Liren — 2 parties
Ju, Wenjun — 2 parties
Gukesh D — 1 partie

Parties historiques

7…c6 — 42.3% (3989 parties)

1950 — Ratner, Boris vs Nezhmetdinov, Rashid — 1/2-1/2 — Gorky URS ch sf
1951 — Pfeiffer, Gerhard vs Heinincke — 1-0 — Augsburg GER
1951 — Parr, Frank vs Gilchrist, Jeff — 1-0 — England
1952 — Keller, Hans vs Barden, Leonard — 1-0 — Helsinki olm
1953 — Kwapisz, Stanislaw vs Grabczewski, Romuald — 0-1 — Krakow POL

7…Nh5 — 33.8% (3185 parties)

1950 — Chestnov, Vitaliy A. vs Sopkov — 1-0 — URS-ch sf Tartu
1950 — Simagin, Vladimir vs Gusev, Aleksandr — 1/2-1/2 — Tula RUS
1950 — Poliak, Evsey vs Franklin Kagoni — 1-0 — Kiev UKR
1950 — Myhre, Erling vs Book, Eero — 0-1 — Dubrovnik CRO
1950 — Myhre, Erling vs Gligoric, Sofija — 0-1 — Dubrovnik olm

7…Nbd7 — 6.9% (653 parties)

1953 — Barda, Olaf vs Anay Barche — 0-1 — Bucharest ROU
1953 — Lambert, Hans vs Bruckner, Gerhard — 1-0 — Vienna AUT
1954 — Visockis, Janis vs Machavariani, Alexandre — 0-1 — Leningrad RUS
1954 — Kapu, Jeno vs Macskasy, Elod — 1-0 — Budapest HUN
1954 — Sandrin, Albert vs Steinmeyer, Robert — 0-1 — New Orleans, LA USA

7…Ne8 — 5.8% (547 parties)

1951 — Del Solar, W. vs Almiron, Martin Alejandro — 0-1 — Santiago de Chile
1951 — Del Solar, W. vs Letelier Martner, Rene — 0-1 — Santiago de Chile
1952 — Keller, Hans vs Barendregt, Johan — 0-1 — Helsinki olm
1953 — Boleslavsky, Isaac vs Troianescu, Octav — 1/2-1/2 — Bucharest ROU
1953 — Ruester, Otto vs Atze, Burkhard — 1-0 — Jena GER

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