Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3	● d6→e5, b7→a6, b7→c6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v2)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 1)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5, ● d4-d5	● …c6-c5, ● …d6-d5

E69c — King’s Indian: Fianchetto, Classical, 9.h3 a6

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3 a6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture c4-c5).

Atouts. Les Blancs s'appuient sur un contrôle dominant de g5.

Côté adverse. Un mauvais fou en c8.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. Be3 (Fou actif (mobilité 5), Développer c1 — 47 % des parties) ; Qc2 (14 % des parties) ; a4 (14 % des parties) ; Re1 (10 % des parties) ; d5 (Occuper le centre — 9 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu sur l'aile dame (...b5 dans 37 % des parties).

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...b5 (Expansion aile dame — 37 % des parties) ; ...Re8 (16 % des parties) ; ...Qe7 (10 % des parties) ; ...exd4 (Capture en d4, Occuper le centre — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1955 Gothenburg Interzonal – Round 7 – Pachman, Ludek – 1/2-1/2 – Petrosian, Tigran V – G60 1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. Nf3 Nf6 5. g3 O-O 6. Bg2 Nbd7 7. O-O c6 8. e4 e5 9. h3 a6 10. Re1 b5
1955 Hoogovens – Round 1 – Kramer, Hanspeter – 1-0 – Abalde Perez, Fernando Jose – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 Qe7
1956 Montevideo – Round 1 – Eliskases, Erich – 1-0 – Abellan Rubio, Jose Luis – G19 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. h3 c6 9. e4 a6 10. Be3 Qe7
1958 Munich olm fin-A – Round 3 – Eliskases, Erich – 1/2-1/2 – Clarke, Peter H – G17 1. c4 Nf6 2. Nc3 d6 3. d4 e5 4. Nf3 Nbd7 5. e4 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O c6 9. h3 a6 10. Be3 Re8
1958 Munich olm prel – Round 3 – Portisch, Lajos – 1/2-1/2 – Penrose, Justin – G23 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 O-O 5. d4 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 b5
1958 NLD Ch Amsterdam NED – Round 1 – Van Scheltinga, Theo – 1/2-1/2 – Donner, Jan-Hein – G1 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a6 10. Be3 Qe7
1961 Oberhausen etc – Round 6 – Korchnoi, Viktor – 1-0 – Llado Lumbera, Jaime – G152 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 O-O 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 Rb8
1961 URS-ch29 sf Novgorod – Round 13 – Suetin, Alexey S – 1-0 – Rosenfeld, Isai K – G37 1. g3 e5 2. c4 Nf6 3. Bg2 c6 4. Nf3 d6 5. Nc3 g6 6. O-O Bg7 7. d4 Nbd7 8. e4 O-O 9. h3 a6 10. Be3 Qe7
1962 Belgrade – Round 11 – Johannessen, Svein – 1/2-1/2 – Ivkov, Borislav – G42 1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 d6 5. Nf3 c6 6. d4 Nd7 7. O-O Ngf6 8. e4 O-O 9. h3 a6 10. Re1 Re8
1962 CSR Ch – Round 13 – Kavalek, Lubomir – 1-0 – Marsalek, Josef – G106 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nbd7 7. Nc3 c6 8. e4 e5 9. h3 a6 10. Be3 b5
1962 Skopje ch17-YUG – Round 9 – Bukic, Enver – 1/2-1/2 – Marovic, Drazen – G98 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 b5
1962 Varna olm – Round 11 – Doda, Zbigniew – 1-0 – Littlewood, John Eric – G448 1. c4 g6 2. g3 Bg7 3. Bg2 Nf6 4. Nf3 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a6 10. d5 cxd5
1963 Buenos Aires ch-ARG – Round 16 – Schweber, Samuel – 1/2-1/2 – Acevedo Garcia, Hilda – G79 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Qc2 b5
1963 Sochi – Round 5 – Bukic, Enver – 1/2-1/2 – Ciocaltea, Victor – G34 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a6 10. Be3 Re8
1964 IBM – Round 4 – Pirc, Vasja – 0-1 – Lehmann, Heinz – G21 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 O-O 5. Nf3 d6 6. d4 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Re1 Re8
1964 Tel Aviv olm – Round 11 – Johannessen, Simon T – 1-0 – Quinones Carrillo, Oscar – G135 1. c4 e5 2. Nf3 d6 3. d4 Nd7 4. g3 Ngf6 5. Bg2 g6 6. O-O Bg7 7. Nc3 O-O 8. e4 c6 9. h3 a6 10. Be3 b5
1964 Tel Aviv olm fin-A – Round 9 – Doda, Zbigniew – 0-1 – Medina Garcia, Antonio Angel – G189 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a6 10. d5 c5
1965 Santiago Santiago de Chile – Round 1 – Smyslov, Vladimir – 1-0 – Quinones Carrillo, Oscar – G1 1. c4 g6 2. d4 Nf6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 b5
1966 La Habana olm fin-A – Round 3 – Benko, Pal – 1-0 – Medina Garcia, Antonio Angel – G49 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. h3 c6 9. e4 a6 10. Be3 Qe7
1966 La Habana olm fin-B – Round 3 – Porath, Yosef – 1/2-1/2 – Walther, Edgar – G6 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 exd4
1966 USSR – Round 1 – Boleslavsky, Isaac – 1-0 – Bukhtin – G8 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. g3 g6 5. Bg2 Bg7 6. Nf3 O-O 7. O-O a6 8. h3 c6 9. e4 e5 10. Be3 b5
1967 CSR Ch – Round 6 – Kozma, Julius – 1-0 – Trapl, Jindrich – G38 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Qc2 exd4
1967 Sochi – Round 1 – Lein, Andreas – 1/2-1/2 – Bogdanovic, Rajko – G11 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 Re8
1968 IBM – Round 4 – Marovic, Drazen – 1/2-1/2 – Bronstein, David I – G18 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a6 10. Qc2 b6
1968 JUG-23ch – Round 13 – Vukic, Aleksandar – 1-0 – Bogdanovic, Rajko – G9 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O c6 7. Nc3 Nbd7 8. e4 e5 9. h3 a6 10. Be3 Re8
1968 Lugano SUI – Round 8 – Padevsky, Nikola – 1/2-1/2 – Adamski, Jan – G91 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O c6 7. Nc3 Nbd7 8. e4 e5 9. h3 a6 10. Re1 Re8
1968 Rubinstein Memorial – Round 5 – Golz, Werner – 1-0 – Adamski, Jan – G30 1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. Nc3 g6 5. g3 Bg7 6. Bg2 O-O 7. O-O e5 8. e4 c6 9. h3 a6 10. Re1 Qe7
1968 Zuerich training – Round ? – Walther, Edgar – 0-1 – Keres, Paul Petrovich – G3 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 Re8
6. World Blitz 2010 – Round 13.10 – Grachev, Boris – 1/2-1/2 – Andreikin, Dmitry – G86 1. d4 Nf6 2. Nf3 d6 3. g3 g6 4. Bg2 Bg7 5. c4 O-O 6. Nc3 Nbd7 7. O-O e5 8. e4 c6 9. h3 a6 10. Be3 b5
Amber-rapid 17th 2008 – Round 10 – Mamedyarov, Shakhriyar – 1/2-1/2 – Ivanchuk, Vasyl – G14 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 a6 9. h3 c6 10. Be3 Re8

E69c — Fianchetto, Classical (1955)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3 a6

Les coups candidats

10.Be3 — 46.1% (229 parties)

Ambassadeurs : Konopka, Michal (3x), Quinones Carrillo, Oscar (2x), Eliskases, Erich (2x), Bukic, Enver (2x), Walther, Edgar (2x), Donner, Jan-Hein (2x), Bogdanovic, Rajko (2x), Bukal, Vladimir Jr. (2x)

10.a4 — 18.5% (92 parties)

Ambassadeurs : Reizniece, Dana (2x), Xie, Jun (2x), Pfeiffer, Gregor (2x), Horvath, Peter (2x), Cuartas, Jaime Alexander (1x), Calvyn Shane Martinez (1x), Nakanishi, Seido (1x), Naile, Alain (1x)

10.Re1 — 11.1% (55 parties)

Ambassadeurs : Adamski, Jan (2x), Pirc, Vasja (1x), Lehmann, Heinz (1x), Golz, Werner (1x), Johannessen, Svein (1x), Ivkov, Borislav (1x), Pachman, Ludek (1x), Petrosian, Tigran V. (1x)

10.Qc2 — 9.5% (47 parties)

Ambassadeurs : Sokolov, Vladimir (2x), Casper, Thomas (2x), Shestoperov, Aleksej (1x), Nezhmetdinov, Rashid (1x), Schweber, Samuel (1x), Garcia, Horacio Pedro (1x), Kozma, Julius (1x), Trapl, Jindrich (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Be3	10.a4	10.Re1	10.Qc2
<1800	16	56%	25%	6%	—
1800-2200	158	46%	30%	8%	3%
2200-2600	235	45%	14%	12%	12%
2600+	5	80%	—	—	20%

Évolution par décennie (% des parties)

Décennie	N parties	10.Be3	10.a4	10.Re1	10.Qc2
1950s	10	70%	—	10%	10%
1960s	27	59%	4%	15%	15%
1970s	24	29%	12%	17%	25%
1980s	37	51%	5%	5%	16%
1990s	125	47%	18%	14%	8%
2000s	111	49%	19%	11%	6%
2010s	137	38%	26%	9%	9%
2020s	26	58%	27%	8%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Be3	38%	58%	▲ +19.7%
10.a4	26%	27%	▲ +1.4%
10.Re1	9%	8%	▼ -1.1%
10.Qc2	9%	4%	▼ -4.9%

Parties historiques

10.Be3 — 46.1% (229 parties)

1953 — Donner, Jan-Hein vs Van Donk, Henk — 1-0 — Utrecht LB
1955 — Kramer, Hanspeter vs Perez Florencio — 1-0 — Beverwijk NED
1955 — Borisenko, Georgy K vs Shdjarskij — 1-0 — URS-ch03 corr5557
1956 — Eliskases, Erich vs Rubio Purrinos, Hugo — 1-0 — Montevideo URU
1958 — Portisch, Lajos vs Penrose, Jonathan — 1/2-1/2 — Munchen olm

10.a4 — 18.5% (92 parties)

1966 — Cuartas, Jaime Alexander vs Calvyn Shane Martinez — 0-1 — Havana CUB
1970 — Wolf, Rudolf vs Jankovec, Ivan — 1-0 — Harrachov
1976 — Nakanishi, Seido vs Naile, Alain — 0-1 — Joao Pessoa
1977 — Gereben, Erno vs Loken, K. O — 1/2-1/2 — Hamar
1980 — Fries-Nielsen, Niels Jorgen vs Mortensen, Erling — 1-0 — Esbjerg ;kat. 8

10.Re1 — 11.1% (55 parties)

1955 — Pachman, Ludek vs Petrosian, Tigran V. — 1/2-1/2 — Goteborg izt
1962 — Johannessen, Svein vs Ivkov, Borislav — 1/2-1/2 — Belgrade SRB
1964 — Pirc, Vasja vs Lehmann, Heinz — 0-1 — Amsterdam NED
1968 — Golz, Werner vs Adamski, Jan — 1-0 — Polanica Zdroj POL
1968 — Padevsky, Nikola vs Adamski, Jan — 1/2-1/2 — Lugano SUI

10.Qc2 — 9.5% (47 parties)

1958 — Stupica, Janez vs Winiwarter, Felix — 1-0 — Reggio Emilia ITA
1963 — Schweber, Samuel vs Garcia, Horacio Pedro — 1/2-1/2 — Buenos Aires ch-ARG
1966 — Shestoperov, Aleksej vs Nezhmetdinov, Rashid — 1-0 — Saratov
1967 — Kozma, Julius vs Trapl, Jindrich — 1-0 — Bratislava SVK
1968 — Marovic, Drazen vs Bronstein, David I — 1/2-1/2 — Amsterdam NED

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