Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● c4, ● c5
Pions isolés	—	● a6
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3	● d6→c5, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (4v1)	● b4 (2v0), ● g4 (2v0), ● b5 (2v1), ● f5 (2v1)
Cases faibles	—	● d5
Centre	● d5 (2v1), ● e4 (4v1)	● d4 (1v0), ● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● b

Pièces

	♔ Blancs	♚ Noirs
Bb2	● Bb2 Ok (mob. 2)
Bg2	● Bg2 Actif (mob. 4)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 6)
Paire de fous	● Oui	● Oui
Non développées	1 (● a1)	1 (● c8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	—	● …e7-e6

E66n — King’s Indian: Fianchetto, Yugoslav Panno, Main Line, 12.Bb2 bxc4

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O Nc6 8.d5 Na5 9.Nd2 a6 10.Qc2 Rb8 11.b3 b5 12.Bb2 bxc4 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Manœuvres et amélioration des pièces.

Atouts. Les Blancs s'appuient sur un contrôle dominant de e4, un fou actif en g2 et la colonne semi-ouverte c.

Côté adverse. Le pion isolé a6.

Plans. bxc4 (Capture en c4, Frapper le centre adverse — 100 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu sur l'aile dame.

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile dame (3 contre 2), un contrôle dominant de b4, g4, b5 et f5, des avant-postes en b4 et b5 et la colonne semi-ouverte b.

Côté adverse. Un mauvais fou en g2.

En contrepartie. Le pion isolé a6.

Plans. ...Bh6 (Fou actif (mobilité 5) — 71 % des parties) ; ...e5 (Occuper le centre — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1954 URS Ch, semi final – Round 1 – Ilivitsky, Georgy A – 0-1 – Vasiukov, Evgeni – G83 1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 O-O 5. g3 d6 6. d4 c5 7. Bg2 Nc6 8. d5 Na5 9. O-O a6 10. Nc3 Rb8
1956 Leningrad ch-URS – Round 1 – Averbakh, Yuri L – 1/2-1/2 – Tal, Mikhail – G14 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 c5 7. Nc3 Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
1957 Bratislava Bratislava SVK – Round 4 – Filip, Miroslav – 1-0 – Ghitescu, Theodor – G12 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 d6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
1960 Buenos Aires – Round 10 – Eliskases, Erich – 1/2-1/2 – Uhlmann, Wolfgang – G104 1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. d4 d6 6. Nf3 Nc6 7. d5 Na5 8. Nd2 c5 9. O-O a6 10. Qc2 Rb8
1961 Dortmund – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Udovic, Andraz – G16 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. O-O c5 7. Nc3 Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
1961 Hoogovens – Round ? – Uhlmann, Wolfgang – 1/2-1/2 – Donner, Jan-Hein – G40 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 7. d5 Na5 8. Nd2 c5 9. O-O a6 10. Qc2 Rb8
1961 Marianske Lazne zt – Round 10 – Olafsson, Fridrik – 1-0 – Perez Perez, Francisco Jose – G8 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c5 6. O-O Nc6 7. Nc3 d6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
1961 USA Ch Open 62th – Round 3 – Loftsson, Julius H – 1/2-1/2 – Byrne, Robert E – G9 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O Nc6 7. d5 Na5 8. Nfd2 c5 9. Nc3 a6 10. Qc2 Rb8
1962 Skopje ch17-YUG – Round 1 – Udovcic, Mijo – 0-1 – Lukic, Arsenije – G8 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nc3 Nc6 7. d4 d6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
1962 Stockholm Interzonal – Round 16 – Korchnoi, Viktor – 1-0 – Bilek, Istvan – G139 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nc6 7. O-O a6 8. d5 Na5 9. b3 c5 10. Qc2 Rb8
1962 Stockholm Interzonal – Round 22 – Geller, Efim P – 1-0 – Yanofsky, Daniel Abraham – G197 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 c5 7. O-O Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
1962 Varna olm – Round 10 – Najdorf, Miguel – 1-0 – Ciocaltea, Victor – G215 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nc3 Nc6 7. d5 Na5 8. b3 c5 9. Bb2 a6 10. O-O Rb8
1963 Capablanca Memorial – Round 5 – Barcza, Gedeon – 1-0 – De Greif, Boris – G41 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nc6 7. O-O a6 8. d5 Na5 9. b3 c5 10. Bb2 Rb8
1963 IBM I – Round 6 – Donner, Jan-Hein – 1-0 – De Rooi, Paul – G5 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 O-O 6. Nc3 Nc6 7. d5 Na5 8. b3 c5 9. Bb2 a6 10. O-O Rb8
1964 Magdeburg – Round 7 – Malich, Burkhard, Dr. – 1-0 – Postler, Reinhard – G27 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 Nc6 7. d4 d6 8. d5 Na5 9. Nd2 Rb8 10. Qc2 a6
1964 WchT U26 11. fin-A – Round 1.4 – Adamski, Jan – 0-1 – Antoshin, Vladimir S – G17 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
1965 Noordwijk – Round 1 – Donner, Jan-Hein – 1-0 – Kort, Jacob – G3 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 7. d5 Na5 8. b3 c5 9. Bb2 a6 10. O-O Rb8
1966 Mar del Plata – Round 11 – Bolbochan, J. – 1/2-1/2 – Eliskases, Erich – G50 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
1966 Rio Hondo zt – Round 8 – Acosta Garcia, Rafael Isaac – 1-0 – Schweber, Samuel – G41 1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. g3 Nf6 5. Bg2 O-O 6. Nf3 Nc6 7. O-O a6 8. d5 Na5 9. b3 c5 10. Bb2 Rb8
1966 Santa Monica – Round 3 – Portisch, Lajos – 1-0 – Petrosian, Tigran A. – G15 1. c4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nf6 5. g3 O-O 6. Bg2 Nc6 7. O-O a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
1966 Tbilisi ch-URS – Round 20 – Osnos, Viatcheslav – 1/2-1/2 – Suetin, Alexey S – G183 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O a6 7. Nc3 Nc6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
1966 The Hague zt – Round 17 – Donner, Jan-Hein – 1-0 – Boey, Josef – G12 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 7. d5 Na5 8. b3 c5 9. Bb2 a6 10. O-O Rb8
1967 October Revolution 50 – Round 1 – Udovcic, Mijo – 0-1 – Suetin, Alexey S – G4 1. c4 g6 2. Nf3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. O-O d6 6. Nc3 Nc6 7. d4 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
1968 Bamberg – Round 10 – Ivkov, Borislav – 1-0 – Klundt, Klaus – G69 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. Nc3 Nc6 7. d5 Na5 8. b3 c5 9. Bb2 a6 10. O-O Rb8
1968 Bamberg – Round 6 – Petrosian, Tigran A. – 1-0 – Toran Albero, Roman – G45 1. c4 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O a6 7. Nc3 Nc6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
1968 Buenos Aires – Round 7 – Foguelman, Alberto – 1/2-1/2 – Panno, Oscar – G48 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
1969 FRG Ch Koenigsfeld GER – Round 11 – Kestler, Hans-Guenther – 1/2-1/2 – Staller, Peter – G30 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. Nc3 c5 7. d4 Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
1973 Leningrad Interzonal – Round 15 – Taimanov, Mark – 0-1 – Smejkal, Jan – G28 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 d6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
Bugojno 1978 – Round 2 – Portisch, Lajos – 0-1 – Timman, Jan H – G19 1. Nf3 g6 2. c4 Bg7 3. d4 Nf6 4. g3 O-O 5. Bg2 d6 6. Nc3 Nc6 7. O-O a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8
Interpolis 1981 – Round 1 – Timman, Jan H – 1-0 – Kasparov, Garry – G26 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O c5 7. Nc3 Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8
RUS vs. ROW 2002 – Round 1 – Khalifman, Alexander – 1/2-1/2 – Radjabov, Teimour – G1 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nc6 7. Nc3 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8

E66n — Fianchetto, Yugoslav Panno, Main Line (1954)

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O Nc6 8.d5 Na5 9.Nd2 a6 10.Qc2 Rb8 11.b3 b5 12.Bb2 bxc4

Les coups candidats

13.bxc4 — 99.8% (955 parties)

Ambassadeurs : Krallmann, Matthias (9x), Csom, Istvan (8x), Vadasz, Laszlo (7x), Donner, Jan-Hein (6x), Ghitescu, Theodor (6x), Braga, Cicero Nogueira (5x), Ribli, Zoltan (5x), Horvath, Jozsef (5x)

13.Nxc4 — 0.2% (2 parties)

Ambassadeurs : Schlaeger, Uwe, Dr. (1x), Bluebaum, Karl-Ernst (1x), Kelm, Marcel (1x), Ciornei, Dragos, Dr. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	13.bxc4	13.Nxc4
<1800	16	100%	—
1800-2200	278	100%	0%
2200-2600	501	100%	0%
2600+	5	100%	—

Évolution par décennie (% des parties)

Décennie	N parties	13.bxc4	13.Nxc4
1950s	6	100%	—
1960s	32	100%	—
1970s	83	99%	1%
1980s	138	100%	—
1990s	282	100%	—
2000s	204	100%	—
2010s	175	99%	1%
2020s	37	100%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
13.bxc4	99%	100%	▲ +0.6%
13.Nxc4	1%	0%	▼ -0.6%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 2 parties
Tal, Mikhail — 1 partie
Botvinnik, Mikhail — 1 partie

Parties historiques

13.bxc4 — 99.8% (955 parties)

1954 — Ilivitsky, Georgy A vs Vasiukov, Evgeni — 0-1 — Erevan ARM
1955 — Averbakh, Yuri L vs Bannik, Anatolij — 1/2-1/2 — Voroshilovgrad
1956 — Averbakh, Yuri L vs Tal, Mikhail — 1/2-1/2 — Leningrad ch-URS
1957 — Filip, Miroslav vs Ghitescu, Theodor — 1-0 — Bratislava Bratislava SVK
1957 — Palmason, Gudmundur vs Gudmundsson, Gudbjartur — 1-0 — Reykjavik ISL

13.Nxc4 — 0.2% (2 parties)

1978 — Schlaeger, Uwe, Dr. vs Bluebaum, Karl-Ernst — 0-1 — Borgholzhausen
2011 — Kelm, Marcel vs Ciornei, Dragos, Dr. — 0-1 — Dortmund GER