E09e - 9.b3 - Closed, Main Line (1939)

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E09e — Closed, Main Line (1939)
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2 b6 9.b3
Les coups candidats
Ambassadeurs : Lindenmair, Anton (4x), Eliskases, Erich (3x), Zoltek, Tadeusz (3x), Smyslov, Vasily (2x), Troianescu, Octav (2x), Guimard, Carlos E (2x), Golombek, Harry (2x), Anay Barche (2x)
9…Ba6 — 13.0% (97 parties)
Ambassadeurs : Filip, Miroslav (1x), Szabo, Laszlo (1x), Szilagyi, Gyorgy Laszlo (1x), Honfi, Karoly (1x), Sherbakov, L (1x), Sokolsky, Alexey (1x), Novak, Ivan (1x), Plachetka, Jan (1x)
9…c5 — 1.1% (8 parties)
Ambassadeurs : Kryger, Oksana (2x), Georgiev, Kiril (1x), Graf, Alexander (1x), Ben Nasser, Khaled (1x), Al-Marri, Omar (1x), Naslund, Mikael (1x), Cua, Sherily (1x), Fabri, Luca (1x)
9…a5 — 0.9% (7 parties)
Ambassadeurs : Minev, Nikolay N (2x), Cuartas, Jaime Alexander (1x), Cobo Arteaga, Eldis (1x), Wang, Philip (1x), Bhat, Vinay (1x), Johannesson, Ingvar Thor (1x), Votava, Jan (1x), Polacik, Igor (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Bb7 9…Ba6 9…c5 9…a5
<1800 31 84% 16% — —
1800-2200 326 84% 13% 2% 1%
2200-2600 285 85% 14% — 1%
2600+ 5 60% 20% 20% —
Évolution par décennie (% des parties)
Décennie N parties 9…Bb7 9…Ba6 9…c5 9…a5
1950s 19 89% 11% — —
1960s 15 87% 7% — 7%
1970s 18 89% 6% — 6%
1980s 57 77% 23% — —
1990s 132 91% 8% — —
2000s 226 82% 15% 2% 1%
2010s 217 83% 14% 1% 0%
2020s 61 85% 10% 2% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Bb7 83% 85% ▲ +1.8%
9…Ba6 14% 10% ▼ -4.4%
9…c5 1% 2% ▲ +0.7%
9…a5 0% 3% ▲ +2.8%
Parties historiques
9…Bb7 — 84.3% (628 parties)
1950 — Stein, Georg vs Schlieder, Rolf — 1/2-1/2 — Soemmerda GER
1950 — Anay Barche vs Gereben, Erno — 1/2-1/2 — Budapest HUN
1951 — Szabo, Stefan vs Troianescu, Octav — 1/2-1/2 — Sopot
1952 — Sowinski, Jerzy vs Sliwa, Bogdan — 0-1 — Katowice POL
1952 — Crisovan, Alex vs Staehelin, Adolf — 1-0 — Lucerne SUI
9…Ba6 — 13.0% (97 parties)
1954 — Filip, Miroslav vs Szabo, Laszlo — 1/2-1/2 — Prague CZE
1957 — Sherbakov, L vs Sokolsky, Alexey — 0-1 — Minsk BLR
1968 — Szilagyi, Gyorgy Laszlo vs Honfi, Karoly — 1/2-1/2 — HUN
1976 — Navarovszky, Laszlo vs Averbakh, Yuri L — 1/2-1/2 — Polanica Zdroj POL
1981 — Novak, Ivan vs Plachetka, Jan — 1/2-1/2 — Tatran Cup Stary Smokovec SVK
9…c5 — 1.1% (8 parties)
2002 — Georgiev, Kiril vs Graf, Alexander — 0-1 — Skopje MKD
2002 — Ben Nasser, Khaled vs Al-Marri, Omar — 1-0 — Doha QAT
2008 — Naslund, Mikael vs Kryger, Oksana — 1-0 — Gausdal NOR
2008 — Cua, Sherily vs Kryger, Oksana — 1/2-1/2 — Beijing CHN
2008 — Fabri, Luca vs Aymard, Michel — 1-0 — ICCF
9…a5 — 0.9% (7 parties)
1966 — Cuartas, Jaime Alexander vs Minev, Nikolay N — 1/2-1/2 — Havana CUB
1971 — Cobo Arteaga, Eldis vs Minev, Nikolay N — 1/2-1/2 — Baja
2001 — Wang, Philip vs Bhat, Vinay — 0-1 — Tulsa
2003 — Johannesson, Ingvar Thor vs Votava, Jan — 0-1 — Selfoss
2016 — Polacik, Igor vs Obona, Jan — 1/2-1/2 — Slovakia