C41w - 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.a4 c6 8.Qe2 - Improved Hanham [-0.08]

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C41w — Improved Hanham
1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.a4 c6 8.Qe2
Eval: [-0.08]
Les coups candidats
8…Qc7 — 28.4% (344 parties)
Ambassadeurs : Hesse, Peter (7x), Morin, Louis (5x), Boe, Mads (5x), Bezold, Michael (4x), Klemanic, Emil (4x), Chistiakov, Alexander (3x), Den Ouden, A (3x), Oral, Tomas (3x)
Ambassadeurs : Schmidt-Schaeffer, Sebastian, Dr. (5x), Volosin, Leon (5x), Brglez, Francek (4x), Bricard, Emmanuel (4x), Tustanowski, Robert (4x), Wahls, Matthias (3x), Jansa, Vlastimil (3x), Kindermann, Stefan (3x)
8…a5 — 19.7% (238 parties)
Ambassadeurs : Manouck, Thierry (6x), Morin, Louis (5x), Autenrieth, Michael, Dr. (4x), Hebert, Jean (3x), Shabanov, Yuri (3x), Lubczynski, Rafal (3x), Ackermann, Hans Werner (3x), Sergievsky, Vladimir D (2x)
8…b6 — 18.3% (221 parties)
Ambassadeurs : Pribyl, Josef (7x), Bisco, Igor (4x), Semmler, Guenter (4x), Schmidt-Schaeffer, Sebastian, Dr. (2x), Izeta Txabarri, Felix (2x), Svetushkin, Dmitry (2x), Gretarsson, Helgi Ass (2x), Kotan, Ladislav (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Qc7 8…exd4 8…a5 8…b6
<1800 12 25% 25% 42% 8%
1800-2200 330 33% 13% 19% 27%
2200-2600 656 24% 31% 21% 18%
2600+ 9 22% 56% 11% —
Évolution par décennie (% des parties)
Décennie N parties 8…Qc7 8…exd4 8…a5 8…b6
1910s 6 50% — — 17%
1920s 7 29% 29% — —
1930s 7 71% 14% — 14%
1940s 3 100% — — —
1950s 11 36% 18% 27% —
1960s 20 55% 25% 5% 5%
1970s 46 43% 22% 9% 9%
1980s 106 35% 24% 26% 6%
1990s 313 29% 33% 16% 16%
2000s 345 24% 22% 21% 25%
2010s 310 24% 21% 25% 23%
2020s 36 28% 53% 6% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Qc7 24% 28% ▲ +3.9%
8…exd4 21% 53% ▲ +31.8%
8…a5 25% 6% ▼ -19.3%
8…b6 23% 8% ▼ -14.2%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 2 parties
Alekhine, Alexander — 1 partie
Smyslov, Vladimir — 1 partie
Tal, Mikhail — 1 partie
Parties historiques
8…Qc7 — 28.4% (344 parties)
1911 — Teichmann, Richard vs Nimzowitsch, Aron — 1-0 — Carlsbad CZE
1912 — Schlechter, Carl vs Burn, Amos — 1-0 — Breslau GER
1912 — Schlechter, Carl vs Burn, Amos — 1-0 — Breslau GER
1927 — Botvinnik, Mikhail vs Romanovsky, Pjotr — 1/2-1/2 — Moscow ch-URS
1927 — Botvinnik, Mikhail vs Romanovsky, Pjotr — 1/2-1/2 — Moskou ch-URS
8…exd4 — 25.6% (310 parties)
1920 — Bogoljubow, Efim vs Nimzowitsch, Aron — 1-0 — Stockholm Grand Hotel Royal
1929 — Lundin, Erik vs Sjomark, O. — 1-0 — Stockholm SWE
1938 — Konstantinopolsky, Alexander vs Duz-Khotimirsky, Fedor Ivanovich — 1-0 — Kiev UKR
1950 — Suetin, Alexey S vs Gusev, Aleksandr — 1-0 — USSR ch sf
1950 — Erblis vs Randvier — 0-1 — Tallinn EST
8…a5 — 19.7% (238 parties)
1955 — Kevitz, Alexander vs Turner, Abe J — 1/2-1/2 — New York, NY USA
1957 — Pilnik Aranda, Karla Constanza vs Benko, Pal — 0-1 — Hafnarfirdi
1959 — Smyslov, Vladimir vs Lutikov, Anatoly S — 1-0 — Moscow RUS
1962 — Govbinder, Mikhail Yudovich vs Sergievsky, Vladimir D — 1/2-1/2 — Minsk BLR
1972 — Levitina, Irina vs Shikova, Vesmina — 1-0 — Skopje MKD
8…b6 — 18.3% (221 parties)
1912 — Tenner, Oscar vs Eliascheff, M. — 1-0 — Breslau GER
1937 — Brinckmann, Alfred vs Rellstab, Ludwig — 0-1 — Berlin GER
1964 — Behrensen, Jorge vs Rubinetti, Jorge — 1/2-1/2 — Buenos Aires ARG
1970 — Zeitler, Hans-Juergen vs Henningsen, Juergen — 0-1 — Voelklingen
1977 — Krauss, George vs Bono, Gael — 1-0 — Columbus, OH USA