A12j — London Defence (1924)
1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2
Les coups candidats
Ambassadeurs : Giardelli, Sergio C. (4x), Moiseev, Oleg (4x), Spiridonov, Nikola (4x), Prielozny, Stanislav (4x), Feustel, Bernd (4x), Smyslov, Vasily (3x), Ujtelky, Maximilián Samuel Rudolf (3x), Byrne, David (3x)
5…h6 — 11.9% (226 parties)
Ambassadeurs : Tompa, Janos (2x), Mannion, Stephen R (2x), Gmeiner, Peter (2x), Scherer, Max (2x), Gonda, Laszlo (2x), Jakab, Attila (2x), McNab, Colin A (2x), Fuderer, Andrija (1x)
5…Nbd7 — 10.8% (205 parties)
Ambassadeurs : Mayer, Steven F. (2x), Klein, Samuel (2x), Taylor, Adam A (2x), Caprio, Gerardo (1x), Ginoulhiac, Eugenio (1x), Van Seters, Frits (1x), Bonne, Marck (1x), Forintos, Gyozo V (1x)
5…g6 — 1.0% (20 parties)
Ambassadeurs : Saidy, Anthony (1x), Bisguier, Arthur B (1x), Kantsler, Boris (1x), Kveinys, Aloyzas (1x), Tichy, Vladimir (1x), Cervenka, Imrich (1x), Mayer, Steven F. (1x), Kabuye Micheal Ronald (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…e6 5…h6 5…Nbd7 5…g6
<1800 94 63% 13% 19% —
1800-2200 879 71% 13% 13% 1%
2200-2600 635 79% 13% 6% 1%
2600+ 7 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 5…e6 5…h6 5…Nbd7 5…g6
1950s 25 80% 8% 8% 4%
1960s 38 79% 11% 11% —
1970s 62 82% 15% 2% 2%
1980s 121 77% 12% 7% 3%
1990s 386 78% 10% 10% 1%
2000s 557 71% 12% 14% 1%
2010s 595 74% 13% 11% 1%
2020s 122 75% 12% 8% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…e6 74% 75% ▲ +1.0%
5…h6 13% 12% -0.3%
5…Nbd7 11% 8% ▼ -2.4%
5…g6 1% 1% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Botvinnik, Mikhail — 2 parties
Karpov, Anatoly — 2 parties
Ju, Wenjun — 2 parties
Smyslov, Vladimir — 1 partie
Parties historiques
5…e6 — 74.3% (1416 parties)
1951 — Zalys, Ignas vs Tanguay, Alexandre — 1-0 — Montreal CAN
1951 — Sarosy, Zoltan L vs Anderson, Frank Ross — 0-1 — Toronto CAN
1951 — Anderson, Frank Ross vs Sarosy, Zoltan L — 1-0 — Toronto CAN
1951 — Smyslov, Vladimir vs Keres, Paul Petrovich — 0-1 — Moskou ch-URS
1952 — Reinhardt, Enrique vs Bolbochan, Jacobo — 0-1 — Mar del Plata ARG
5…h6 — 11.9% (226 parties)
1954 — Fuderer, Andrija vs Cortlever, Nico — 1-0 — Amsterdam ol final
1959 — Blaszczak, Czeslaw vs Ziembinski, Marian — 1-0 — Warsaw POL
1968 — Langeweg, Kick vs Padevsky, Nikola — 1/2-1/2 — Wijk aan Zee NED
1968 — Plachetka, Jan vs Kupka, Slavoj — 1-0 — Luhacovice CZE
1969 — Verber, Richard William vs Pollak, Georg — 1/2-1/2 — Dresden GER
5…Nbd7 — 10.8% (205 parties)
1955 — Kevitz, Alexander vs Klugman, Reuben — 1-0 — New York, NY USA
1957 — Ragozin, Viacheslav vs Abhinaya Polaka — 1-0 — Moscow RUS
1965 — Caprio, Gerardo vs Ginoulhiac, Eugenio — 1/2-1/2 — Firenze ITA
1967 — Van Seters, Frits vs Bonne, Marck — 1-0 — Ostend
1968 — Forintos, Gyozo V vs Kovacs, Laszlo — 0-1 — Budapest HUN
5…g6 — 1.0% (20 parties)
1957 — Saidy, Anthony vs Bisguier, Arthur B — 0-1 — Cleveland, OH USA
1974 — Feustel, Bernd vs Hund, Gerhard — 1-0 — FRG-ch Menden
1985 — Tichy, Vladimir vs Cervenka, Imrich — 1-0 — Tirnavia-B Trnava SVK
1985 — Mayer, Steven F. vs Kabuye Micheal Ronald — 1-0 — DC League
1987 — Streshinsky, L vs Selivanov, Igor — 0-1 — ?