B57c - 7.O-O - Sozin (1911)

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B57c — Sozin (1911)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Bd7 7.O-O
Les coups candidats
7…g6 — 77.7% (709 parties)
Ambassadeurs : Matnadze Bujiashvili, Ann (16x), Paoli, Enrico (8x), Robatsch, Karl (7x), Honfi, Karoly (5x), Szilagyi, Gyorgy Laszlo (4x), Stein, Leonid (4x), Hennings, Artur (4x), Makarichev, Sergey (4x)
7…e6 — 10.6% (97 parties)
Ambassadeurs : Yoos, John C. (7x), Krush, Irina (4x), Rachels, Stuart (2x), Bagirov, Vladimir (1x), Vaisser, Anatoli (1x), Ciocaltea, Victor (1x), Erdelyi, Stefan (1x), Sidorov, Anatoly (1x)
7…Rc8 — 6.9% (63 parties)
Ambassadeurs : Emma, Jaime (3x), Bravo Pastuzaca, Hector Alejandro (2x), Brunner, Lucas (2x), Robatsch, Karl (2x), Boros, Denes (2x), Ciric, Dragoljub M (1x), Ungureanu, Emil (1x), Gereben, Erno (1x)
7…a6 — 3.4% (31 parties)
Ambassadeurs : Robatsch, Karl (6x), Kindermann, Stefan (2x), Schlosser, Michael (2x), Shirazi, Kamran (2x), Aguilar, Carlos (PER) (1x), Pappier, Carlos German (1x), Van Riemsdijk, Herman C. (1x), Panno, Oscar (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…g6 7…e6 7…Rc8 7…a6
<1800 42 67% 10% 10% 12%
1800-2200 248 75% 9% 10% 4%
2200-2600 448 78% 13% 6% 2%
2600+ 10 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 7…g6 7…e6 7…Rc8 7…a6
1950s 48 88% 4% 6% 2%
1960s 49 88% 4% 6% 2%
1970s 64 77% 9% 12% 2%
1980s 60 82% 3% 5% 10%
1990s 157 75% 10% 11% 3%
2000s 289 81% 10% 6% 2%
2010s 206 72% 16% 4% 5%
2020s 40 65% 20% 10% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…g6 72% 65% ▼ -7.3%
7…e6 16% 20% ▲ +4.5%
7…Rc8 4% 10% ▲ +6.1%
7…a6 5% 5% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Parties historiques
7…g6 — 77.7% (709 parties)
1951 — Chistiakov, Alexander vs Taimanov, Mark — 1-0 — Leningrad RUS
1951 — Pogats, Jozsef Jr. vs Benko, Pal — 1-0 — Hungary ch
1952 — Wade, Robert G vs Unzicker, Ferdinand, Dr. — 0-1 — Stockholm SWE
1952 — Chistiakov, Alexander vs Batuev, Andrey M — 0-1 — Odessa UKR
1952 — Pietzsch, Wolfgang vs Nielsen, Palle — 1/2-1/2 — Helsinki olm
7…e6 — 10.6% (97 parties)
1952 — Sidorov, Anatoly vs Bannik, Anatolij — 1-0 — Odessa UKR
1954 — Ciocaltea, Victor vs Erdelyi, Stefan — 1-0 — Bushteni
1964 — Farah, Rodolfo vs Behrensen, Jorge — 0-1 — Buenos Aires ARG
1965 — Bagirov, Vladimir vs Vaisser, Anatoli — 1-0 — ?
1971 — Kaiszauri, Konstanty vs Bellin, Robert — 1-0 — Athens GRE
7…Rc8 — 6.9% (63 parties)
1952 — Gereben, Erno vs Kottnauer, Cenek — 1-0 — Budapest HUN
1955 — Bialas, Wolfram vs Niephaus, Walter — 1-0 — FRG Tch
1956 — O'Riordan, Kenneth vs Middleton, Ian — 1/2-1/2 — Moscow RUS
1968 — Ciric, Dragoljub M vs Ungureanu, Emil — 1-0 — Lugano olm
1968 — Honfi, Karoly vs Simagin, Vladimir — 1-0 — Kislovodsk
7…a6 — 3.4% (31 parties)
1952 — Aguilar, Carlos (PER) vs Pappier, Carlos German — 1/2-1/2 — Rosario ARG
1969 — Van Riemsdijk, Herman C. vs Panno, Oscar — 0-1 — Mar del Plata ARG
1972 — Zitzman, M. vs Feldman, Jacob — 1/2-1/2 — US Open
1984 — Kindermann, Stefan vs Robatsch, Karl — 1-0 — GER
1984 — Kindermann, Stefan vs Robatsch, Karl — 1-0 — Tyskland