A12l — English: London Defence

1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2 e6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la paire de fous.

Côté adverse. Le fou enfermé en f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b1, le fou c1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nc3 (Développer Nb1) ; d3 (Libérer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur les cases fortes e4 et g4, un fou actif en f5 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, le fou f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nbd7 (Développer Nb8) ; ...Be7 (Développer Bf8) ; ...Bg4 (Clouer Nf3) ; ...c5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● c6→d5, e6→d5, b7→c6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● e4 (3v0), ● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (1v0)	● d5 (4v1), ● e4 (3v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bg2	● Bg2 Enfermé (mob. 2)
Bf5		● Bf5 Actif (mob. 7)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (b1, c1, a1, h1)	4 (b8, f8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Au centre !
Droits de roque	O-O / O-O-O	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d2-d3, ● e2-e3	● …c6-c5, ● …d5-d4, ● …e6-e5

Partie
1924 Buenos Aires – Round 9 – Reti, Richard – 1-0 – Villegas, Benito – G23 1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bf5 5. b3 e6 6. O-O Bd6 7. Bb2 O-O 8. d3 Nbd7 9. Nc3 Qe7 10. Re1 Bg6
1924 Moskou ch-URS – Round 1 – Romanovsky, Pjotr – 1-0 – Rabinovich, Alexander – G9 1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Bd6 7. Bb2 Nbd7 8. d3 e5 9. e4 Be6 10. exd5 cxd5
1925 Vienna – Round 2 – Gruber, Theodor – 1-0 – Wolf, Siegfried – G6 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. g3 e6 5. Bg2 Nf6 6. O-O Be7 7. Bb2 Nbd7 8. d3 h6 9. Nc3 O-O 10. Re1 Bg4
1928 The Hague ol (Men) – Round 12 – Lokvenc, Josef – 1/2-1/2 – Marin y Llovet, Valentin – G80 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Bd6 8. d3 O-O 9. Nc3 a6 10. Re1 dxc4
1931 New York – Round 2 – Kevitz, Alexander – 0-1 – Capablanca, Jose – G27 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. g3 Nf6 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Bd6 8. d3 O-O 9. Nbd2 Qe7 10. Re1 e5
1933 New York – Round 5 – Horowitz, Albert Israel – 1-0 – Hassialis – G16 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. d3 h6 8. Nbd2 Bd6 9. Bb2 Qe7 10. cxd5 cxd5
1934 Syracuse – Round 4 – Santasiere, Anthony – 0-1 – Fine, Reuben – G19 1. c4 Nf6 2. Nf3 c6 3. g3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Bd6 7. Bb2 O-O 8. d3 Qe7 9. Nbd2 e5 10. Nh4 Be6
1937 GER Ch 4th – Round 10 – Kranki, Hans – 1-0 – Lachmann, Hans G – G13 1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Bd6 8. d4 h5 1-0
1947 Mar del Plata – Round 6 – Iliesco, Juan – 0-1 – Pizzi Possi, Tulio – G50 1. c4 c6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bf5 5. b3 e6 6. O-O Nbd7 7. d3 Bd6 8. Nc3 O-O 9. Bb2 Qe7 10. Nh4 Bg4
1948 US Open – Round 11 – Pavey, Max – 1/2-1/2 – Evans, Larry M – G61 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 Bf5 5. Bg2 e6 6. O-O h6 7. d3 Nbd7 8. Bb2 Bh7 9. Nbd2 Be7 10. Qc2 O-O
1955 Moskou ch-URS – Round 1 – Averbakh, Yuri L – 1/2-1/2 – Borisenko, Georgy K – G16 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Be7 7. Bb2 O-O 8. d3 Nbd7 9. Nc3 h6 10. Re1 Bh7
1956 JUG-URS – Round 1 – Smyslov, Vladimir – 1-0 – Djurasevic, Bozidar – G3 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 O-O 9. Nbd2 a5 10. a3 h6
1957 USA Ch Open 58th – Round 5 – Byrne, David – 1-0 – Fuster, Geza – G39 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Bc5 8. Nc3 O-O 9. d4 Be7 10. h3 Ne4
1958 Haifa/Tel Aviv – Round 8 – Van den Berg, Carel B – 1-0 – Czerniak, Moshe – G44 1. c4 Nf6 2. Nf3 c6 3. g3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O h6 7. Bb2 Nbd7 8. d3 Be7 9. Nbd2 O-O 10. Qc2 a5
1960 Buenos Aires – Round 11 – Reshevsky, Samuel – 1/2-1/2 – Ivkov, Borislav – G115 1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bf5 5. b3 e6 6. O-O Be7 7. Bb2 O-O 8. d3 h6 9. Qc2 a5 10. a3 Nbd7
1960 URS Ch sf – Round 11 – Flohr, Salo – 1-0 – Novopashin, Arkady – G89 1. Nf3 d5 2. g3 Bf5 3. Bg2 Nf6 4. c4 c6 5. b3 e6 6. O-O h6 7. d3 Nbd7 8. Ba3 Bxa3 9. Nxa3 Qe7 10. Qc1 O-O
1961 Bled Bled SLO – Round 6 – Donner, Jan-Hein – 1-0 – Hein-Bisguier, Arthur – G4 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 h6 8. d3 Bc5 9. a3 a6 10. b4 Ba7
1962 Lasker Memorial Berlin-Ost – Round 1 – Doda, Zbigniew – 1/2-1/2 – Stein, Leonid – G1 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 h6 9. Nbd2 O-O 10. Ne5 Nxe5
1962 Mar del Plata – Round 8 – Byrne, David – 0-1 – Rossetto, Hector – G77 1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. c4 c6 5. b3 e6 6. O-O Nbd7 7. Bb2 Be7 8. Nc3 O-O 9. d4 h6 10. Nd2 Qa5
1962 Vrnjacka Banja – Round 10 – Milic, Borislav – 1/2-1/2 – Ivkov, Borislav – G100 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. c4 Bf5 5. b3 e6 6. O-O Bd6 7. d3 O-O 8. Ba3 Bxa3 9. Nxa3 h6 10. Nc2 Re8
1964 Chigorin Memorial – Round 2 – Ujtelky, Maximilian – 0-1 – Antoshin, Vladimir S – G8 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 O-O 9. Nbd2 h6 10. a3 Re8
1964 Reykjavik – Round 12 – Olafsson, Fridrik – 0-1 – Tal, Mikhail – G67 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Be7 7. Bb2 O-O 8. d3 h6 9. Nbd2 a5 10. a3 Nbd7
1965 Copenhagen – Round 7 – Ujtelky, Maximilian – 1-0 – Sloth, Jorn – G63 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 h6 9. Nbd2 O-O 10. Qc2 Bh7
1965 POL Ch 23th sf – Round 4 – Pojedziniec, Wladyslaw – 0-1 – Tarnowski, Alfred – G11 1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. Bg2 Bf5 5. b3 e6 6. O-O Be7 7. Nc3 Ne4 8. Bb2 Bf6 9. Qc1 Nxc3 10. Bxc3 O-O
1966 Harrachov – Round 3 – Bilek, Istvan – 1/2-1/2 – Hort, Vlastimil – G10 1. Nf3 Nf6 2. g3 d5 3. c4 c6 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 h6 9. Nbd2 O-O 10. Qb1 Bh7
1967 CSR Ch – Round 8 – Ujtelky, Maximilian – 1/2-1/2 – Kupka, Slavoj – G49 1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bf5 5. b3 e6 6. O-O Nbd7 7. Bb2 h6 8. d3 Bc5 9. a3 a5 10. Nbd2 O-O
1967 DEN Ch – Round 6 – Andersen, Borge – 1-0 – Pedersen, Carl Aage – G21 1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bf5 5. b3 e6 6. O-O Nbd7 7. Bb2 Bd6 8. d3 Qe7 9. Nbd2 O-O 10. Re1 Bg6
1968 GDR Ch – Round 11 – Pietzsch, Wolfgang – 0-1 – Hennings, Artur – G12 1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. Bg2 Bf5 5. b3 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 O-O 9. Nbd2 a5 10. Nh4 Bg6
1968 Lugano ol (Men) qual-D – Round 1 – Van der Laat, Jorge – 0-1 – Langeweg, Kick – G23 1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Ba3 Bxa3 8. Nxa3 O-O 9. Nc2 a5 10. Ncd4 Bg6
1968 Monte Carlo – Round 6 – Forintos, Gyozo V – 1-0 – Zinser, Sylvain – G39 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. g3 e6 5. Bg2 Nf6 6. O-O Bc5 7. Bb2 O-O 8. d3 Qe7 9. Nbd2 Rd8 10. a3 a5
1968 The Hague – Round 6 – Langeweg, Kick – 0-1 – Westerinen, Heikki M.J. – G12 1. Nf3 Nf6 2. g3 d5 3. c4 c6 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. Bb2 Be7 8. d3 h6 9. Nc3 O-O 10. Qc2 Bh7
1969 New York ch-USA – Round 8 – Byrne, David – 1-0 – Addison, Wiliam G – G40 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Be7 7. Bb2 O-O 8. d3 h6 9. Nc3 Bh7 10. Qd2 Nbd7
1975 Portoroz/Ljubljana – Round 15 – Karnar, Marijan – 1/2-1/2 – Karpov, Anatoly – G103 1. g3 Nf6 2. Bg2 d5 3. c4 c6 4. b3 Bf5 5. Nf3 e6 6. O-O h6 7. Bb2 Nbd7 8. d3 Bh7 9. Nbd2 Be7 10. Bc3 a5
42. Olympiad 2016 – Round 3.42 – Adly, Ahmed – 1-0 – Ramos Espinoza, Efren Andres – G218 1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Nbd7 7. d3 h6 8. Bb2 Bc5 9. Nbd2 O-O 10. Qb1 a5
Madrid 1973 – Round 2 – Panno, Oscar – 1/2-1/2 – Karpov, Anatoly – G5 1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bf5 5. Bg2 e6 6. O-O Be7 7. Bb2 h6 8. d3 O-O 9. Nbd2 Bh7 10. a3 Nbd7
Mar del Plata 1982 – Round 1 – Giardelli, Sergio C. – 1/2-1/2 – Polugaevsky, Lev – G14 1. c4 Nf6 2. Nf3 c6 3. g3 d5 4. Bg2 Bf5 5. b3 e6 6. O-O h6 7. Bb2 Nbd7 8. d4 Be7 9. Nc3 O-O 10. Nd2 Qb6
World Rapid Final 2012 – Round 10 – Radjabov, Teimour – 1/2-1/2 – Dreev, Aleksey – G78 1. Nf3 d5 2. g3 c6 3. Bg2 Bf5 4. c4 e6 5. b3 Nf6 6. O-O Be7 7. Bb2 O-O 8. d3 h6 9. Nbd2 c5 10. Ne5 Nbd7

A12l — London Defence

1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2 e6

Eval: [-0.17]

Les coups candidats

6.O-O — 64.2% (982 parties)

Ambassadeurs : Mudra, Tomas (5x), Feustel, Bernd (5x), Narkun, Michal (5x), Demeter, Peter (4x), Spiridonov, Nikola (4x), Kranki, Hans (3x), Ujtelky, Maximilian (3x), Agdestein, Simen (3x)

6.Bb2 — 34.0% (520 parties) →

Ambassadeurs : Metz, Hartmut (3x), Freisler, Pavel (3x), Valdes Romero, Leonardo (3x), Nikolaeva, Maria (3x), Lubczynski, Rafal (3x), Obona, Jan (3x), Botvinnik, Mikhail (2x), Sarosy, Zoltan L (2x)

6.d3 — 1.4% (21 parties)

Ambassadeurs : Raab, Peter (2x), Etruk, Rein T (1x), Nei, Iivo (1x), Van Riemsdijk, Herman C. (1x), Garcia Toledo, Pedro (1x), Streshinsky, L (1x), Tolmachev, Aleksander (1x), Kononenko, Tatiana (1x)

6.Nh4 — 0.2% (3 parties)

Ambassadeurs : Breustedt, Werner (1x), Kunz, Horst (1x), Djeno, Drago (1x), Bjelicic, Jan (1x), Olarte, Stefan (1x), Betrisey, Claude (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.O-O	6.Bb2	6.d3	6.Nh4
<1800	31	68%	29%	—	3%
1800-2200	597	63%	35%	1%	—
2200-2600	554	65%	33%	2%	0%
2600+	9	56%	44%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6.O-O	6.Bb2	6.d3	6.Nh4
1920s	8	62%	38%	—	—
1930s	15	67%	33%	—	—
1940s	10	60%	40%	—	—
1950s	21	33%	62%	—	5%
1960s	31	77%	19%	3%	—
1970s	52	71%	27%	2%	—
1980s	100	68%	31%	1%	—
1990s	316	67%	30%	2%	—
2000s	430	61%	37%	2%	—
2010s	471	64%	35%	0%	0%
2020s	75	60%	36%	3%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.O-O	64%	60%	▼ -4.3%
6.Bb2	35%	36%	▲ +1.2%
6.d3	0%	3%	▲ +2.2%
6.Nh4	0%	1%	▲ +1.1%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 4 parties
Tal, Mikhail — 3 parties
Euwe, Max — 2 parties
Botvinnik, Mikhail — 2 parties
Ju, Wenjun — 2 parties
Karpov, Aleksandr — 1 partie
Karpov, Anatoly — 1 partie

Parties historiques

6.O-O — 64.2% (982 parties)

1924 — Reti, Richard vs Villegas, Benito — 1-0 — Buenos Aires ARG
1924 — Romanovsky, Pjotr vs Rabinovich, Alexander — 1-0 — Moskou ch-URS
1925 — Gruber, Theodor vs Wolf, Siegfried — 1-0 — Vienna AUT
1928 — Lokvenc, Josef vs Marin y Llovet, Valentin — 1/2-1/2 — The Hague NED
1929 — Kevitz, Alexander vs Fox, Mark — 0-1 — Bradley Beach

6.Bb2 — 34.0% (520 parties)

1927 — Mitchell, Graham Russell vs Herrick, James A — 1-0 — City of London CC
1927 — Gruber, Theodor vs Soler, Placido — 1/2-1/2 — London ENG
1927 — Lokvenc, Joseph vs Zimmermann, Wim — 0-1 — London ENG
1931 — Flohr, Salo vs Thelen, Bedrich — 0-1 — Prague CZE
1931 — Euwe, Max vs Wertheim, Johan Hendrik — 1-0 — Rotterdam NED

6.d3 — 1.4% (21 parties)

1963 — Etruk, Rein T vs Nei, Iivo — 0-1 — Estonia
1975 — Van Riemsdijk, Herman C. vs Garcia Toledo, Pedro — 1/2-1/2 — Fortaleza BRA
1987 — Streshinsky, L vs Tolmachev, Aleksander — 0-1 — ?
1997 — Schloetterer, Hermann vs Erler, Klaus-Juergen — 1/2-1/2 — Heroldsbach
1998 — Siebrecht, Sebastian vs Gikas, Andreas Basilius — 1/2-1/2 — Muenster GER

6.Nh4 — 0.2% (3 parties)

1958 — Breustedt, Werner vs Kunz, Horst — 1/2-1/2 — GDR-ch Schkopau GER
2015 — Djeno, Drago vs Bjelicic, Jan — 1-0 — Croatia
2024 — Olarte, Stefan vs Betrisey, Claude — 1-0 — Biel SUI

Fin du contenu

Aucune page supplémentaire à charger

Articles plus anciens →