E89b — King’s Indian: Saemisch, Orthodox Main Line, 9…a6

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6 8.Nge2 cxd5 9.cxd5 a6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Qd2 (Prépare O-O-O — 46 % des parties) ; g4 (Attaque à l'aile roi — 27 % des parties) ; a4 (11 % des parties) ; Ng3 (8 % des parties) ; Nc1 (7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nbd7 (Développer b8 — 45 % des parties) ; ...h5 (22 % des parties) ; ...b5 (Expansion aile dame — 16 % des parties) ; ...Nh5 (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, e4→d5	● d6→e5, b7→a6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● c	● c

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 0)
Be3	● Be3 Actif (mob. 11)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● 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	● f3-f4	—

Partie
1954 Amsterdam olm – Round 1 – Lokvenc, Josef – 1/2-1/2 – Geller, Efim P – G36 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f3 d6 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. Qd2 b5
1954 Hungary Ch – Round 1 – Bely, Matthieu – 1-0 – Ozsvath, Andras – G29 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. Qb3 Nbd7
1958 Munich olm fin-C – Round 1 – Romani, Elio – 1-0 – Dreyer, Kurt – G1 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. Qd2 b5
1959 Dresden – Round 11 – Pietzsch, Wolfgang – 1-0 – Lokvenc, Josef – G79 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. Qd2 Ne8
1960 Budapest zt – Round 14 – Popov, Luben – 1/2-1/2 – Bertok, Mario Jr. – G79 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1960 Budapest zt – Round 5 – Popov, Luben – 1-0 – Raisa, Unto – G31 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. g4 h5
1960 Leipzig olm fin-A – Round 4 – Bobotsov, Milko G – 0-1 – Najdorf, Miguel – G58 1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. g4 h5
1960 Leipzig olm fin-A – Round 5 – Botvinnik, Mikhail – 1/2-1/2 – Lombardy, William J – G74 1. c4 d6 2. d4 g6 3. Nc3 Bg7 4. e4 Nf6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1960 Leipzig olm prel – Round 1 – Milev, Zdravko – 0-1 – Bertok, Mario Jr. – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. g4 h5
1960 Leipzig olm prel – Round 8 – Tamburini, Mario – 0-1 – Beni, Alfred – G277 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. Nge2 c6 7. d5 cxd5 8. cxd5 O-O 9. Be3 a6 10. Qd2 Re8
1960 Olympiad prel III – Round 4 – Blom, Kaj – 1/2-1/2 – Barden, Leonard – G29 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. Nc1 Nh5
1960 Olympiad prel III – Round 6 – Gunnarsson, Gunnar K – 0-1 – Barden, Leonard – G43 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1960 Varna Varna BUL – Round 5 – Bobotsov, Milko G – 1-0 – Pustina, Ylvi – G21 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Nge2 c6 7. Be3 e5 8. d5 cxd5 9. cxd5 a6 10. Qd2 b5
1961 Bled – Round 1 – Germek, Milan – 1/2-1/2 – Udovcic, Mijo – G15 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. d5 c6 7. Be3 cxd5 8. cxd5 O-O 9. Nge2 a6 10. g4 h5
1961 Hastings6162 – Round 6 – Botvinnik, Mikhail – 1-0 – Penrose, Justin – G25 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1961 Leicestershire Centenary – Round 2 – Barden, Leonard – 0-1 – Gligorić, Svetozar – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1963 Capablanca Memorial – Round 15 – Perez Perez, Francisco Jose – 1-0 – Calero, Ivan – G139 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Nge2 e5 8. d5 cxd5 9. cxd5 a6 10. g4 b5
1963 Enschede zt – Round 1 – Popov, Luben – 1-0 – Durão, Joaquim Manuel – G15 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. Qd2 b5
1963 WchT U26 10th – Round 1.2 – Weinstein, Raymond – 1-0 – Brander, Ilmari – G4 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1964 EU Team Ch sf – Round 3.6 – Milev, Zdravko – 0-1 – Moehring, Guenther – G42 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. g4 h5
1964 Magdeburg – Round 10 – Wehnert, Lutz – 0-1 – Moehring, Guenther – G38 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1964 Zinnowitz Zinnowitz GER – Round 3 – Popov, Luben – 1-0 – Maedler, Juergen, Dr. – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1966 Groningen – Round 6 – Kiers, Conrad – 1/2-1/2 – Whiteley, Andrew Jonathan – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Nge2 e5 8. d5 cxd5 9. cxd5 a6 10. g4 h5
1966 Sunderland ch-BCF – Round 7 – Haygarth, Michael J – 1/2-1/2 – Penrose, Justin – G66 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. Qd2 b5
1967 FRA Ch Dieppe FRA – Round 6 – Ferry, Roger – 0-1 – Caminade, Christian – G19 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5
1969 Reggio Emilia ITA – Round 11 – Filep, Tibor – 1-0 – Klein, Manfred – G22 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 9. cxd5 a6 10. Qd2 b5

E89b — Saemisch, Orthodox Main Line (1954)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6 8.Nge2 cxd5 9.cxd5 a6

Les coups candidats

10.Qd2 — 45.8% (120 parties)

Ambassadeurs : Lokvenc, Josef (4x), Gligoric, Sofija (4x), Geller, Efim P. (2x), Szabo, Laszlo (2x), Petrosian, Tigran V. (2x), Popov, Vladimir L. (2x), Rubinetti, Jorge (2x), Panno, Oscar (2x)

10.g4 — 27.1% (71 parties)

Ambassadeurs : Popov, Luben (3x), Botvinnik, Mikhail (3x), Milev, Zdravko (2x), Bertok, Mario Jr. (2x), Moehring, Guenther (2x), Bobotsov, Milko G (2x), Barden, Leonard (2x), Caminade, Christian (2x)

10.a4 — 10.7% (28 parties)

Ambassadeurs : Graf, Alexander (2x), Ghoneim, Ahmed Mohamed (2x), Scholl, Eddie C (1x), Richardson, Keith B (1x), Pratten, Wilfred Henry (1x), Matchett, Harry Gethin Thorp (1x), Behnick, Eckhard (1x), Huebner, Robert (1x)

10.Ng3 — 7.6% (20 parties)

Ambassadeurs : Kroll, Ove (1x), Jacobsen, Benjamin Hojvang (1x), Wunderlich, Daniel (1x), Friedrich, Adam (1x), Lilienthal, Andor (1x), Skjoeld, C. (1x), Dienne, Jean (1x), Eeckhout, Jean-louis (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Qd2	10.g4	10.a4	10.Ng3
<1800	9	33%	22%	11%	33%
1800-2200	87	39%	26%	13%	5%
2200-2600	70	63%	17%	9%	7%
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	10.Qd2	10.g4	10.a4	10.Ng3
1950s	13	92%	—	—	—
1960s	49	33%	53%	8%	—
1970s	11	45%	27%	18%	9%
1980s	17	35%	41%	—	12%
1990s	61	38%	20%	13%	18%
2000s	56	54%	23%	4%	7%
2010s	48	50%	19%	25%	2%
2020s	7	57%	14%	—	14%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Qd2	50%	57%	▲ +7.1%
10.g4	19%	14%	▼ -4.5%
10.a4	25%	0%	▼ -25.0%
10.Ng3	2%	14%	▲ +12.2%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 3 parties
Tal, Mikhail — 1 partie

Parties historiques

10.Qd2 — 45.8% (120 parties)

1954 — Lokvenc, Josef vs Geller, Efim P. — 1/2-1/2 — Amsterdam NED
1954 — Lokvenc, Josef vs Geller, Efim P. — 1/2-1/2 — Amsterdam olm
1956 — Szabo, Laszlo vs Petrosian, Tigran V. — 1/2-1/2 — Amsterdam NED
1956 — Golombek, Harry vs Uhlmann, Wolfgang — 1/2-1/2 — Moscow RUS
1958 — Petrosian, Tigran V. vs Lokvenc, Josef — 1-0 — Munchen olm

10.g4 — 27.1% (71 parties)

1960 — Milev, Zdravko vs Bertok, Mario Jr. — 0-1 — Leipzig olm prel
1960 — Ghitescu, Theodor vs Jansa, Vlastimil — 0-1 — Marianske Lazne
1960 — Bobotsov, Milko G vs Miguel, Nahuel — 0-1 — Leipzig olm
1960 — Popov, Luben vs Bertok, Mario Jr. — 1/2-1/2 — Budapest HUN
1960 — Ungureanu, Emil vs Ciocaltea, Victor — 1-0 — Bucharest ROU

10.a4 — 10.7% (28 parties)

1961 — Behnick, Eckhard vs Huebner, Robert — 0-1 — Haslach im Kinzigtal
1963 — Scholl, Eddie C vs Richardson, Keith B — 0-1 — Groningen NED
1963 — Pratten, Wilfred Henry vs Matchett, Harry Gethin Thorp — 1-0 — Bognor Regis, Butlins
1965 — Lemaire, Robert vs Rooze, Jan — 1-0 — Antwerp BEL
1973 — Betancort Curbelo, Juan Rafael vs Visier Segovia, Fernando — 0-1 — Las Palmas ESP

10.Ng3 — 7.6% (20 parties)

1971 — Lilienthal, Andor vs Skjoeld, C. — 1-0 — telex
1988 — Wunderlich, Daniel vs Friedrich, Adam — 1/2-1/2 — corr DDR
1989 — Kroll, Ove vs Jacobsen, Benjamin Hojvang — 1/2-1/2 — Aarhus DEN
1990 — Comp Portorose vs Kindermann, Stefan — 1-0 — Berlin GER
1990 — Charlee, Porthor vs Kindermann, Sergio — 1-0 — Berlin Summer

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