Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● g2→f3, f3→e4	● b7→a6, b7→c6, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bd3	● Bd3 Actif (mob. 4)
Be3	● Be3 Actif (mob. 6)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● g1, ● 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, ● d4-d5, ● e4-e5	● …c6-c5, ● …d6-d5, ● …e7-e5

E81l — King’s Indian: Saemisch, Byrne Variation

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 a6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nge2 (Développer g1 — 69 % des parties) ; a4 (23 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...b5 (Expansion aile dame — 64 % des parties) ; ...a5 (18 % des parties) ; ...Nbd7 (Développer b8 — 14 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1956 URS Ch, semi final – Round 17 – Polugaevsky, Lev – 1/2-1/2 – Yukhtman, Yakov – G111 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. Nge2 e5 9. d5 cxd5 10. cxd5 Nbd7
1957 Dublin zt – Round 11 – O'Sullivan, Donal – 0-1 – Benko, Pal – G86 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. a4 e5 9. d5 Ne8 10. b4 a5
1957 URS Ch, semi final – Round 1 – Sokolsky, Alexey – 1/2-1/2 – Petrosian, Tigran A. – G3 1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 Nf6 5. f3 c6 6. Be3 a6 7. Bd3 O-O 8. Nge2 Nbd7 9. Qd2 b5 10. b3 e5
1957 WchT U26 04th – Round 1.4 – Palmqvist Ulf – 0-1 – Gipslis, Aivars – G11 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. Nge2 b5 9. O-O bxc4 10. Bxc4 Nbd7
1966 La Habana olm fin-A – Round 10 – Hort, Vlastimil – 1/2-1/2 – Ciocaltea, Victor – G184 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f3 d6 6. Be3 c6 7. Bd3 a6 8. Qd2 b5 9. Nge2 Nbd7 10. O-O bxc4
1966 La Habana olm fin-A – Round 8 – Filip, Marius Liviu – 1/2-1/2 – Bolbochan, J. – G144 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 a6 6. Be3 O-O 7. Bd3 c6 8. Nge2 b5 9. cxb5 axb5 10. O-O Nbd7
1966 Student Olympiad fA – Round 8 – Gheorghiu, Florin – 1-0 – Savon, Vladimir A – G10 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. a4 a5 9. Nge2 Na6 10. Rc1 e5
1967 Moscow – Round 1 – Pachman, Ludek – 1/2-1/2 – Geller, Efim P – G72 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. Nge2 Nbd7 9. O-O b5 10. cxb5 axb5
1967 Palma de Mallorca – Round 5 – Damjanovic, Marko – 1-0 – Botvinnik, Mikhail – G35 1. d4 g6 2. e4 d6 3. c4 Bg7 4. Nc3 Nf6 5. f3 c6 6. Be3 a6 7. Bd3 O-O 8. Nge2 b5 9. cxb5 axb5 10. b4 Nbd7
1968 Bristol ch-BCF – Round 6 – Perkins, Alan H – 1/2-1/2 – Cafferty, Bernard – G63 1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 O-O 5. Be3 d6 6. f3 c6 7. Bd3 a6 8. a4 a5 9. Nge2 Na6 10. O-O c5
1968 Hoogovens – Round 14 – Crabbendam, Hans – 0-1 – Tatai, Stefano – G122 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be3 d6 6. f3 c6 7. Bd3 a6 8. a4 a5 9. Nge2 Na6 10. Qd2 Nb4
1968 Hoogovens – Round 6 – Bobotsov, Milko G – 0-1 – Tal, Mikhail – G57 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 c6 6. Be3 a6 7. Bd3 O-O 8. Nge2 b5 9. cxb5 axb5 10. b4 Nbd7
1968 Palma de Mallorca – Round 14 – Spassky, Boris Vasily – 1-0 – Toran Albero, Roman – G126 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be3 d6 6. f3 c6 7. Bd3 a6 8. Nge2 Nbd7 9. O-O b5 10. b3 bxc4
1968 SWE Ch – Round 15 – Brostrom, Goran – 1/2-1/2 – Nilsson, Zandor – G68 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be3 d6 6. f3 c6 7. Bd3 a6 8. a4 a5 9. Nge2 Na6 10. Rc1 Nb4
1969 Clare Benedict Cup 16th – Round 2 – Teschner, Rudolf – 1/2-1/2 – Holaszek, Hans – G5 1. c4 g6 2. d4 Nf6 3. Nc3 Bg7 4. e4 O-O 5. Be3 d6 6. f3 c6 7. Bd3 a6 8. Nge2 b5 9. b3 Nbd7 10. O-O e5
1969 Ljubljana – Round 1 – Gheorghiu, Florin – 1/2-1/2 – Byrne, Ray – G3 1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 Nf6 5. f3 c6 6. Be3 a6 7. Bd3 O-O 8. Nge2 b5 9. b3 Nbd7 10. Qd2 bxc4
1969 Vilnius – Round 9 – Timman, Jan H – 0-1 – Nicevski, Risto – G44 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. Nge2 b5 9. b3 Nbd7 10. O-O e5
1970 Palma de Mallorca Interzonal – Round 17 – Filip, Miroslav – 1-0 – Ujtumen, Tudev – G139 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 c6 6. Be3 a6 7. Bd3 O-O 8. Nge2 b5 9. b3 e5 10. d5 cxd5
1970 Palma de Mallorca Interzonal – Round 19 – Panno, Oscar – 1/2-1/2 – Geller, Efim P – G140 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. Nge2 b5 9. O-O Nbd7 10. Qd2 Bb7
1972 Skopje ol (Men) fin-A – Round 6 – Filip, Miroslav – 1/2-1/2 – Ciocaltea, Victor – G100 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. f3 c6 6. Be3 a6 7. Bd3 O-O 8. Nge2 b5 9. Qd2 Nbd7 10. b3 e5
74. Tata Steel GMA 2012 – Round 2 – Topalov, Veselin – 1/2-1/2 – Van Wely, Loek – G10 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 O-O 6. Be3 c6 7. Bd3 a6 8. a4 a5 9. Qd2 e5 10. Nge2 Na6
Champions Showdown Rapid 2016 – Round 6.2 – Topalov, Veselin – 1/2-1/2 – Nakamura, Hikaru – G12 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 a6 7. Bd3 c6 8. Nge2 b5 9. O-O bxc4 10. Bxc4 d5
Montreal 1979 – Round 1 – Portisch, Lajos – 1-0 – Hort, Vlastimil – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. Nge2 Nbd7 9. O-O b5 10. Qd2 Re8
Rio de Janeiro Interzonal 1979 – Round 4 – Timman, Jan H – 1/2-1/2 – Petrosian, Tigran V – G14 1. c4 g6 2. d4 Bg7 3. Nc3 d6 4. e4 Nf6 5. f3 c6 6. Be3 O-O 7. Bd3 a6 8. Nge2 b5 9. Qd2 Nbd7 10. b3 e5
World Blitz 2017 – Round 10.49 – Saeed, Ishaq – 0-1 – Zhao, Jun – G538 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. f3 d6 6. Be3 c6 7. Bd3 a6 8. Nge2 b5 9. Qd2 Nbd7 10. O-O Bb7
World Championship 35th-KK5 1990 – Round 1 – Karpov, Anatoly – 1/2-1/2 – Kasparov, Garry – G1 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c6 7. Bd3 a6 8. Nge2 b5 9. O-O Nbd7 10. Rc1 e5

E81l — Sämisch Variation, Byrne Defense (1956)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 a6

Les coups candidats

8.Nge2 — 64.5% (359 parties)

Ambassadeurs : Seeman, Tarvo (7x), Timman, Jan H (6x), Byrne, Robert E (5x), Hort, Vlastimil (5x), Barbu, George-Viorel (5x), Grego, Luis Gonzaga (5x), Utnasunov, Alexander (4x), Haba, Petr (4x)

8.a4 — 27.8% (155 parties)

Ambassadeurs : Knaak, Rainer (3x), Gheorghiu, Florin (2x), Barbu, George-Viorel (2x), Farcadi, Hunor (2x), Rietze, Clemens, Dr. (2x), Krogius, Nikolai V (1x), Yuan, Zhilin (1x), Crabbendam, Hans (1x)

8.Qd2 — 5.0% (28 parties)

Ambassadeurs : Hort, Vlastimil (1x), Ciocaltea, Victor (1x), Eising, Johannes (1x), Dresen, Ulrich (1x), Lengyel, Levente (1x), Bogdanovic, Rajko (1x), Klasetzki, Marcos (1x), Paz y Barriga, Gustavo Ing (1x)

8.c5 — 1.4% (8 parties)

Ambassadeurs : Schwarz, Anton (1x), Kopylov, Igor A (1x), Kurtz, Murray (1x), Rousseau, Daniel (1x), Mayer, Steven F. (1x), Conner, Samuel (1x), Karolyi, Tibor (1x), Summermatter, Daniel (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Nge2	8.a4	8.Qd2	8.c5
<1800	26	65%	27%	—	—
1800-2200	167	59%	34%	4%	2%
2200-2600	235	65%	28%	6%	1%
2600+	8	62%	25%	—	12%

Évolution par décennie (% des parties)

Décennie	N parties	8.Nge2	8.a4	8.Qd2	8.c5
1950s	7	71%	29%	—	—
1960s	22	77%	18%	5%	—
1970s	45	80%	13%	4%	—
1980s	47	68%	17%	2%	9%
1990s	175	67%	25%	7%	—
2000s	118	63%	32%	4%	1%
2010s	131	55%	37%	4%	2%
2020s	12	42%	50%	8%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Nge2	55%	42%	▼ -13.3%
8.a4	37%	50%	▲ +13.4%
8.Qd2	4%	8%	▲ +4.5%
8.c5	2%	0%	▼ -2.3%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 1 partie
Tal, Mikhail — 1 partie
Karpov, Anatoly — 1 partie
Kasparov, Garry — 1 partie
Ding, Liren — 1 partie

Parties historiques

8.Nge2 — 64.5% (359 parties)

1956 — Gniot, Tadeusz vs Gromek, Jozef — 0-1 — Krynica POL
1956 — Polugaevsky, Lev vs Yukhtman, Yakov — 1/2-1/2 — Tbilisi GEO
1957 — Alexandre, Sekfali vs Petrosian, Tigran V. — 1/2-1/2 — Kiev UKR
1957 — Sokolsky, Alexey vs Petrosian, Tigran A. — 1/2-1/2 — Kiev UKR
1957 — Palmqvist, Ulf vs Gipslis, Aivars — 0-1 — Reykjavik ISL

8.a4 — 27.8% (155 parties)

1957 — O'Sullivan, Donal vs Benko, Pal — 0-1 — Dublin zt
1958 — Krogius, Nikolai V vs Yuan, Zhilin — 1-0 — Sochi RUS
1966 — Gheorghiu, Florin vs Savon, Vladimir — 1-0 — Orebro Wch student
1968 — Crabbendam, Hans vs Tatai, Stefano — 0-1 — Wijk aan Zee NED
1968 — Brostrom, Goran vs Nilsson, Zandor — 1/2-1/2 — Norrkoeping

8.Qd2 — 5.0% (28 parties)

1966 — Hort, Vlastimil vs Ciocaltea, Victor — 1/2-1/2 — Havana olm
1971 — Lengyel, Levente vs Bogdanovic, Rajko — 1/2-1/2 — Sarajevo Sarajevo BIH
1978 — Klasetzki, Marcos vs Paz y Barriga, Gustavo Ing — 0-1 — LIPEAP Monsalvo Memorial
1985 — Eising, Johannes vs Dresen, Ulrich — 0-1 — Germany West
1990 — Ballschuh, Siegfried vs Trottnow, Hans-Joachim — 0-1 — corr WT/M

8.c5 — 1.4% (8 parties)

1981 — Kurtz, Murray vs Rousseau, Daniel — 0-1 — Montreal CAN
1984 — Schwarz, Anton vs Kopylov, Igor A — 0-1 — W-ch13 q03 corr8489
1986 — Karolyi, Tibor vs Summermatter, Daniel — 1-0 — Kecskemet HUN
1989 — Mayer, Steven F. vs Conner, Samuel — 1-0 — Maryland
2005 — Hareux, Hubert vs Caudiu, Eric — 1-0 — Le Touquet FRA

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