A68g - 8…O-O 9.Be2 b5 10.e5 dxe5 11.fxe5 Ng4 12.Bg5 - Four Pawns [+0.34]

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A68g — Four Pawns
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 O-O 9.Be2 b5 10.e5 dxe5 11.fxe5 Ng4 12.Bg5
Eval: [+0.34]
Les coups candidats
12…Qb6 — 61.7% (205 parties)
Ambassadeurs : Segal, Alexandru Sorin (6x), Choroszej, Aleksander (6x), Vasiukov, Evgeni (3x), Klundt, Klaus (3x), Libersan, Thierry (3x), Podgorski, Maciej (3x), Udovcic, Mijo (2x), Jimenez Zerquera, Eleazar (2x)
12…f6 — 22.9% (76 parties)
Ambassadeurs : Menyhart, Tibor (3x), Sosonko, Gennadi (2x), Segal, Alexandru Sorin (2x), Michaelsen, Nils (2x), Kluss, Kai (2x), Stluka, Frantisek (2x), Carrillo Martinez, Fernando A. (1x), Kavalek, Lubomir (1x)
12…Qa5 — 15.4% (51 parties)
Ambassadeurs : Niemela, Ilmari Aarne (3x), Guthi, I. (2x), Beck, Hartmuth (2x), Perez Perez, Francisco Jose (1x), Konikowski, Jerzy (1x), Segiet (1x), Polikarpov, Arkady D (1x), Zvorykina, Kira (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 12…Qb6 12…f6 12…Qa5
<1800 4 — 50% 50%
1800-2200 108 69% 19% 11%
2200-2600 127 59% 26% 15%
Évolution par décennie (% des parties)
Décennie N parties 12…Qb6 12…f6 12…Qa5
1960s 24 67% 8% 25%
1970s 23 52% 43% 4%
1980s 41 61% 24% 15%
1990s 101 53% 33% 14%
2000s 71 62% 20% 18%
2010s 51 71% 10% 20%
2020s 21 86% 10% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
12…Qb6 71% 86% ▲ +15.1%
12…f6 10% 10% -0.3%
12…Qa5 20% 5% ▼ -14.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Parties historiques
12…Qb6 — 61.7% (205 parties)
1962 — Mikenas, Vladas vs Shianovsky, Vladislav I — 1-0 — Erevan ch-URS
1963 — Udovcic, Mijo vs Vasiukov, Evgeni — 0-1 — Rijeka
1963 — Udovcic, Mijo vs Vasiukov, Evgeni — 0-1 — Rijeka
1963 — Zakharov, Alexander V vs Tukmakov, Vladimir B — 1-0 — Soviet Union
1963 — Nei, Iivo vs Gufeld, Eduard — 0-1 — Leningrad ch-URS
12…f6 — 22.9% (76 parties)
1964 — Carrillo Martinez, Fernando A. vs Kavalek, Lubomir — 0-1 — Tel Aviv ISR
1965 — Cafure, Emilio vs Garcia, Horacio Pedro — 1-0 — Buenos Aires ARG
1972 — Segal, Alexandru Sorin vs Gamarra Caceres, Carlos — 1/2-1/2 — Sao Paulo BRA
1973 — Toth, Bela vs Micheli, Carlo — 1-0 — Milan ITA
1975 — Kouatly, Bachar vs Pablo Mari, Alejandro — 0-1 — Tjentiste
12…Qa5 — 15.4% (51 parties)
1960 — Niemela, Ilmari Aarne vs Guthi, I. — 1-0 — Leipzig GER
1960 — Niemela, Ilmari Aarne vs Guthi, I. — 1-0 — Leipzig olm
1961 — Niemela, Ilmari Aarne vs Perez Perez, Francisco Jose — 1-0 — Marianske Lazne
1963 — Camara Ronald vs Rocha, Antonio Cavilhas — 1-0 — Fortaleza BRA
1964 — Polikarpov, Arkady D vs Zvorykina, Kira — 1-0 — Belarus