E83a — King’s Indian: Saemisch, 6…Nc6

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Nge2 (Développer g1 — 63 % des parties) ; Qd2 (Prépare O-O-O — 30 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...a6 (Préparer expansion aile dame — 72 % des parties) ; ...e5 (Occuper le centre — 16 % des parties) ; ...Rb8 (5 % 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 (2v1), ● d5 (3v1), ● e4 (2v1)	● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Be3	● Be3 Actif (mob. 6)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● g1, ● f1, ● a1, ● h1)	2 (● 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	● …d6-d5, ● …e7-e5

Partie
1960 Paignton Premier 10th – Round 6 – Ritson-Morry, William – 1-0 – Wagstaff, Roy A – G23 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Qc2 e5 8. d5 Ne7 9. Bd3 Ne8 10. g4 f5
1961 Marianske Lazne zt – Round 10 – Sliwa, Bogdan – 0-1 – Ghitescu, Theodor – G68 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Bd3 e5 8. d5 Nd4 9. Nge2 Nd7 10. Qd2 c5
1961 Marianske Lazne zt – Round 6 – Sliwa, Bogdan – 0-1 – Bobotsov, Milko G – G39 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Bd3 e5 8. d5 Nd4 9. Nge2 Nh5 10. Qd2 c5
1962 Marianske Lazne – Round 6 – Sliwa, Bogdan – 1-0 – Jansa, Vlastimil – G41 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Bd3 e5 8. d5 Nd4 9. Nge2 Nh5 10. Qd2 c5
1962 Poznan ch POL – Round 12 – Sliwa, Bogdan – 0-1 – Brzozka, Stefan – G76 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Bd3 a6 8. Nge2 Rb8 9. O-O Nd7 10. Rc1 e5
1963 Capablanca Memorial – Round 13 – Broderman, Jose – 0-1 – Bobotsov, Milko G – G122 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f3 d6 6. Be3 Nc6 7. Bd3 e5 8. d5 Nd4 9. Nge2 Nd7 10. b4 Qh4+
1964 Tel Aviv olm fin-C – Round 11 – Colon Cortegoso, Marta – 0-1 – Westerinen, Heikki M.J. – G64 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. d5 Nb8 8. Qd2 Re8 9. Bd3 e6 10. Nge2 exd5
1968 Corr – Round 1 – Lusin, Horacio Daniel – 1/2-1/2 – Morgado, Juan Sebastian – G7 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f3 d6 6. Be3 Nc6 7. Bd3 e5 8. d5 Nd4 9. Nge2 Nh5 10. Qd2 c5
1975 URS Team Ch – Round 3 – Pronina, Larissa – 0-1 – Golovey, Tamara O – G175 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Rc1 e5 8. d5 Nd4 9. Bxd4 exd4 10. Nce2 c5

E83a — Sämisch Variation, Yates Defense (1960)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6

Les coups candidats

7.Nge2 — 62.8% (7251 parties) →

Ambassadeurs : Westerinen, Heikki M.J. (38x), Gheorghiu, Florin (24x), Gufeld, Eduard (21x), Knaak, Rainer (19x), Portisch, Ferenc (18x), Santistevan, Ovidio (18x), Kahn, Evarth Dr. (17x), Nunn, John D M (16x)

7.Qd2 — 30.5% (3520 parties) →

Ambassadeurs : Westerinen, Heikki M.J. (16x), Wiltenburg, Fred (12x), Valeinis, Janis (9x), Gufeld, Eduard (7x), Lev, Ronen (7x), Nunn, John D M (7x), Bukic, Enver (6x), Petursson, Margeir (6x)

7.Bd3 — 4.5% (514 parties)

Ambassadeurs : Deskin, Gary (5x), Sliwa, Bogdan (4x), Schilly, Hans-Joachim (4x), Babichev, Vyacheslav (3x), Babushkin, Igor Aleksandrovich (3x), Morgado, Juan Sebastian (2x), Bobotsov, Milko G (2x), Ghitescu, Theodor (2x)

7.d5 — 0.7% (85 parties)

Ambassadeurs : Hill, Boikai (1x), Valvo, Michael J (1x), Estrada Degrandi, Walter (1x), Bauza, Lorenzo (1x), Black, Colin (1x), Westerinen, Heikki M.J. (1x), Parr, Frank (1x), Freeman, Michael J. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Nge2	7.Qd2	7.Bd3	7.d5
<1800	566	51%	38%	7%	1%
1800-2200	4683	56%	35%	6%	1%
2200-2600	3747	74%	23%	1%	0%
2600+	71	80%	20%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Nge2	7.Qd2	7.Bd3	7.d5
1950s	19	47%	47%	5%	—
1960s	382	63%	32%	3%	2%
1970s	459	69%	27%	1%	2%
1980s	1265	69%	27%	3%	1%
1990s	2996	63%	31%	5%	1%
2000s	2974	57%	34%	6%	1%
2010s	3065	65%	28%	5%	1%
2020s	389	62%	34%	3%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Nge2	65%	62%	▼ -3.1%
7.Qd2	28%	34%	▲ +5.3%
7.Bd3	5%	3%	▼ -1.3%
7.d5	1%	1%	+0.3%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 8 parties
Karpov, Anatoly — 8 parties
Ding, Liren — 8 parties
Botvinnik, Mikhail — 5 parties
Tal, Mikhail — 4 parties
Kramnik, Vladimir — 1 partie

Parties historiques

7.Nge2 — 62.8% (7251 parties)

1952 — Rossetto, Hector vs Reinhardt, Enrique — 1-0 — Mar del Plata ARG
1952 — Johnsen, Larus vs Jost, Felix — 1/2-1/2 — Helsinki olm
1952 — Anagnostou, Ioannis vs Gaitanaros, George — 1-0 — Athens GRE
1953 — Keller-Hermann, Edith vs Elstner, Rudolf — 1-0 — Jena GER
1955 — Zamkovskaya, Violetta Aleks vs Kopaev, Nikolay A — 0-1 — Kiev UKR

7.Qd2 — 30.5% (3520 parties)

1951 — Rathai, Volker vs Elstner, Rudolf — 0-1 — Schwerin GER
1952 — Stoltz, Gabriel vs Kinnmark, Ove — 1-0 — match LB
1954 — Diez del Corral, Jesus vs Napolitano, Mario — 1-0 — Sirmione
1954 — Ciejka, Tadeusz vs Borloy, Karoly — 0-1 — Budapest HUN
1955 — Hansen, Poul Martin vs Pedersen, Bent — 1-0 — Copenhagen DEN

7.Bd3 — 4.5% (514 parties)

1956 — Kaufman, Alan vs Winters, S — 1-0 — New York, NY USA
1961 — Sliwa, Bogdan vs Ghitescu, Theodor — 0-1 — Marianske Lazne zt
1961 — Sliwa, Bogdan vs Bobotsov, Milko G — 0-1 — Marianske Lazne zt
1962 — Sliwa, Bogdan vs Brzozka, Stefan — 0-1 — Poznan ch POL
1962 — Sliwa, Bogdan vs Jansa, Vlastimil — 1-0 — Marianske Lazne

7.d5 — 0.7% (85 parties)

1960 — Estrada Degrandi, Walter vs Bauza, Lorenzo — 0-1 — Uruguay
1961 — Bodewin, Walter E vs Mueller, Manfred — 0-1 — DDR
1963 — Parr, Frank vs Freeman, Michael J. — 1-0 — BCF-ch Bath ENG
1964 — Hill, Boikai vs Valvo, Michael J — 0-1 — ?
1964 — Black, Colin vs Westerinen, Heikki M.J. — 0-1 — Tel Aviv olm