E81a — King’s Indian: Saemisch, 5…O-O

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Be3 (Fou actif (mobilité 6), Développer c1 — 77 % des parties) ; Bg5 (Fou actif (mobilité 7), Développer c1 — 14 % des parties) ; Nge2 (Développer g1 — 8 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...e5 (Occuper le centre — 26 % des parties) ; ...c5 (Frapper le centre adverse — 23 % des parties) ; ...Nc6 (Développer b8 — 21 % des parties) ; ...Nbd7 (Développer b8 — 11 % des parties) ; ...a6 (Préparer expansion aile dame — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● g2→f3, f3→e4	● c7→d6, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	5 (● g1, ● c1, ● 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	mobile
Ruptures	● c4-c5, ● e4-e5	● …c7-c5, ● …d6-d5, ● …e7-e5

Partie
1929 Hastings – Round 1 – Flohr, Salo – 0-1 – Tylor, Theodore Henry – G4 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 O-O 6. g4 e5 7. d5 c6 8. Nh3 a6 9. Be3 b5 10. dxc6 b4
1936 UJCS-14.Kongress – Round 5 – Bartosek, Milan – 0-1 – Olexa, Vilem – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f3 d6 6. Bd3 e5 7. d5 a5 8. Nge2 Na6 9. a3 Ne8 10. Be3 f5
1937 Bad Elster – Round 5 – Ullrich, Heinz – 0-1 – Pelikán, Jiří – G4 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 O-O 6. Bd3 e5 7. Be3 Ne8 8. Nge2 Nc6 9. d5 Ne7 10. Qd2 f5
1938 I Torneo Magistrale Edoardo Balbontin – Round 10 – Staldi, Cherubino – 1-0 – Nestler, Vincenzo – G6 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. d5 Nh5 8. Nge2 Na6 9. Be3 f5 10. Qd2 b6
1946 JUG Ch – Round 5 – Kalabar, Sadi – 1/2-1/2 – Pirc, Vasja – G17 1. e4 d6 2. d4 Nf6 3. f3 g6 4. c4 Bg7 5. Nc3 O-O 6. Bd3 e5 7. Nge2 exd4 8. Nxd4 c6 9. Be3 d5 10. cxd5 cxd5
1953 Bucharest – Round 18 – Sliwa, Bogdan – 1/2-1/2 – Troianescu, Octav – G172 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. Nge2 Nc6 8. d5 Ne7 9. Be3 Nd7 10. g4 Nc5
1954 DDR Ch U20 – Round 2 – Bertholdt, Dieter – 1/2-1/2 – Muehlberg, Siegfried – G8 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f3 d6 6. Bd3 e5 7. Nge2 Nc6 8. d5 Ne7 9. Be3 c5 10. g4 Ne8
1954 Prague zt – Round 11 – Sliwa, Bogdan – 1-0 – Olafsson, Fridrik – G57 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. Nge2 Nh5 8. Be3 Nc6 9. d5 Nd4 10. Qd2 c5
1954 Prague zt Prague CZE – Round 9 – Sliwa, Bogdan – 1-0 – Solin, Ilya – G32 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. Nge2 exd4 8. Nxd4 Nfd7 9. Be3 Nc5 10. O-O Nxd3
1955 Marshall CC Ch 5556 – Round 14 – Kaufmann, Allan – 0-1 – Mednis, Edmar J – G35 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 c5 7. d5 a6 8. Bg5 e6 9. Nge2 Qb6 10. O-O Nbd7
1958 Sarajevo ch YUG – Round 10 – Karaklajic, Nikolas – 0-1 – Milic, Borislav – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. d5 Nh5 8. Be3 f5 9. Nge2 Qh4+ 10. Bf2 Qg5
1961 Debrecen – Round 3 – Lokvenc, Josef – 1/2-1/2 – Boleslavsky, Isaac – G19 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 Nc6 7. Nge2 e5 8. d5 Nd4 9. Be3 Nh5 10. Qd2 c5
1962 Varna olm – Round 1 – Golombek, Harry – 0-1 – Simon Cobo, Enrique – G43 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. Nge2 Nc6 8. d5 Nd4 9. Be3 Nxe2 10. Qxe2 Nh5
1968 Havirov – Round 14 – Kupidlovsky, Kornel – 0-1 – Radovici, Corvin – G48 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. Nc3 O-O 5. e4 d6 6. Bd3 Nc6 7. Nge2 a6 8. Be3 Rb8 9. a4 Nd7 10. O-O e5
1969 Wch jr final A – Round 11 – Castro, Oscar Hernandez – 0-1 – Vogt, Lothar – G29 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bd3 e5 7. d5 Nh5 8. Nge2 f5 9. exf5 gxf5 10. Qc2 Na6

E81a — Sämisch Variation, Normal Defense (1929)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O

Les coups candidats

6.Be3 — 76.9% (45205 parties) →

Ambassadeurs : Gheorghiu, Florin (87x), Knaak, Rainer (72x), Graf, Alexander (72x), Uhlmann, Wolfgang (67x), Haba, Petr (66x), Westerinen, Heikki M.J. (59x), Nunn, John D M (56x), Gligoric, Sofija (47x)

6.Bg5 — 14.0% (8263 parties) →

Ambassadeurs : Botsari, Anna-Maria (78x), Vidarte Morales, Arturo (46x), Rajkovic, Dusan (45x), Kelecevic, Nedeljko (42x), Varga, Zoltan (41x), Zhukova, Natalia (33x), Ionescu, Constantin (31x), Marzolo, Cyril (30x)

6.Nge2 — 7.8% (4575 parties) →

Ambassadeurs : Dreev, Aleksey (74x), Khenkin, Igor (44x), Gupta, Abhijeet (39x), Korchnoi, Viktor (38x), Svetushkin, Dmitry (33x), Basso, Pier Luigi (28x), Ward, Chris G (24x), Iljushin, Alexei (24x)

6.Bd3 — 1.1% (674 parties)

Ambassadeurs : Straka, Jozef (6x), Marcu, Simon (4x), Deskin, Gary (4x), Sliwa, Bogdan (3x), Hebert, Jean (3x), Rack, Matthias (3x), Med, Ladislav (3x), Khechumyan, Gagik (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Be3	6.Bg5	6.Nge2	6.Bd3
<1800	3312	83%	9%	5%	3%
1800-2200	23704	79%	13%	6%	1%
2200-2600	20432	69%	18%	12%	0%
2600+	597	61%	14%	24%	—

Évolution par décennie (% des parties)

Décennie	N parties	6.Be3	6.Bg5	6.Nge2	6.Bd3
1950s	859	81%	12%	7%	1%
1960s	1575	87%	5%	7%	1%
1970s	1573	92%	6%	2%	0%
1980s	3497	81%	17%	2%	1%
1990s	15076	77%	18%	4%	1%
2000s	15758	75%	15%	8%	1%
2010s	17116	77%	12%	11%	1%
2020s	3361	69%	11%	19%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Be3	77%	69%	▼ -7.4%
6.Bg5	12%	11%	▼ -0.8%
6.Nge2	11%	19%	▲ +8.1%
6.Bd3	1%	1%	+0.1%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 10 parties
Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Kramnik, Vladimir — 10 parties
Ding, Liren — 10 parties
Ju, Wenjun — 10 parties
Anand, Viswanathan — 9 parties
Carlsen, Magnus — 4 parties
Gukesh D — 2 parties
Smyslov, Vladimir — 1 partie
Karpov, Aleksandr — 1 partie

Parties historiques

6.Be3 — 76.9% (45205 parties)

1950 — Chestnov, Vitaliy A. vs Sopkov — 1-0 — URS-ch sf Tartu
1950 — Ratner, Boris vs Nezhmetdinov, Rashid — 1/2-1/2 — Gorky URS ch sf
1950 — Sajtar, Jaroslav vs Piskov, Kamen — 1-0 — Prague CZE
1950 — Zirngibl, Albert vs Schlieder, Rolf — 1-0 — Soemmerda GER
1950 — Milev, Zdravko vs Markov, Bozidar — 1-0 — Sofia BUL

6.Bg5 — 14.0% (8263 parties)

1950 — Lilienthal, Andor vs Boleslavsky, Isaac — 1/2-1/2 — Budapest HUN
1950 — Petrosian, Tigran V. vs Borisenko, Georgy K — 1-0 — Moscow RUS
1950 — Petrosian, Tigran V. vs Borisenko, Georgy K — 1-0 — Moskou ch-URS
1951 — Taimanov, Mark vs Geller, Efim P. — 1-0 — Ivanovo
1951 — Kluger, Gyula vs Kapu, Jeno — 1-0 — Budapest HUN

6.Nge2 — 7.8% (4575 parties)

1950 — Nielsen, Palle vs Kinnmark, Olof — 1-0 — Reykjavik ISL
1950 — Antos, Adam vs Cucka, Josef — 0-1 — Chocen
1953 — Dimc, Dragutin vs Janosevic, Dragoljub — 1-0 — Zagreb CRO
1953 — Bulat, Ante vs Nikolac, Juraj — 0-1 — Zagreb CRO
1953 — Uhlmann, Wolfgang vs Fuchs, Reinhart — 0-1 — Jena GER

6.Bd3 — 1.1% (674 parties)

1953 — Sliwa, Bogdan vs Troianescu, Octav — 1/2-1/2 — Bucharest ROU
1954 — Bertholdt, Dieter vs Muehlberg, Siegfried — 1/2-1/2 — Schkopau
1954 — Sliwa, Bogdan vs Solin, Ilmari — 1-0 — Prague zt Prague CZE
1954 — Sliwa, Bogdan vs Olafsson, Fridrik — 1-0 — Prague CZE
1955 — Kaufmann, Allan vs Mednis, Edmar J — 0-1 — New York, NY USA

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