E37a - 7…* - Classical Variation, Noa Variation (1930)

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E37a — Classical Noa Main Line
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 Ne4 7.Qc2
Les coups candidats
Ambassadeurs : Hou, Yifan (12x), Ivanisevic, Ivan (9x), Carlsen, Magnus (8x), Karpov, Anatoly (7x), Kopasov, Evgeny (7x), Eliskases, Erich (6x), Drozdovskij, Yuri (6x), Shishkin, Vadim (6x)
Ambassadeurs : Fine, Reuben (4x), Audet-Bouchard, Nicolas (4x), Rossetto, Hector (3x), Timman, Jan H (3x), Carstensen, Jacob (3x), Schoenegg, Thomas (3x), Vargyas, Zoltan (3x), Stahlberg, Gideon (2x)
7…O-O — 10.5% (176 parties)
Ambassadeurs : Roeder, Matthias (3x), Wood, Baruch (2x), Euwe, Max (2x), Fine, Reuben (2x), Fine, Richard Alvaro Adrien (2x), Ozols, Karlis (2x), Lazarev, Vladimir (2x), Wilsbeck, Jan B. (2x)
7…e5 — 6.0% (101 parties)
Ambassadeurs : Atalik, Suat (3x), Kasparov, Garry (3x), Adams, Michael (3x), Korchnoi, Viktor (2x), Kotronias, Vasilios (2x), Coleman, Peter L (2x), Kramnik, Vladimir (2x), Howes, Tony (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…c5 7…Nc6 7…O-O 7…e5
<1800 25 52% 12% 20% —
1800-2200 392 57% 18% 15% 5%
2200-2600 733 70% 15% 6% 8%
2600+ 126 87% 5% 1% 6%
Évolution par décennie (% des parties)
Décennie N parties 7…c5 7…Nc6 7…O-O 7…e5
1920s 3 33% — 33% —
1930s 59 49% 27% 22% —
1940s 54 63% 22% 11% —
1950s 34 71% 12% 15% —
1960s 24 50% 29% 17% —
1970s 25 60% 24% 4% 8%
1980s 36 61% 11% 14% 11%
1990s 203 48% 27% 13% 7%
2000s 650 67% 16% 8% 7%
2010s 509 68% 11% 11% 6%
2020s 73 79% 5% 8% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…c5 68% 79% ▲ +11.5%
7…Nc6 11% 5% ▼ -5.9%
7…O-O 11% 8% ▼ -2.8%
7…e5 6% 3% ▼ -3.2%
Joueurs célèbres
Champions du monde dans cette position
Hou, Yifan — 10 parties
Karpov, Anatoly — 8 parties
Carlsen, Magnus — 8 parties
Euwe, Max — 6 parties
Kasparov, Garry — 5 parties
Kramnik, Vladimir — 5 parties
Ju, Wenjun — 2 parties
Alekhine, Alexander — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
7…c5 — 64.1% (1071 parties)
1929 — Menchik, Vera Frantsevna vs Winter, William — 1/2-1/2 — Ramsgate schev
1930 — Noteboom, Daniel vs Takacs, Sandor — 1/2-1/2 — viermeesterkamp
1931 — Noteboom, Daniël vs Buerger, Victor — 1-0 — Hastings ENG
1931 — Bogoljubow, Efim vs Nimzowitsch, Aron — 0-1 — Bled SLO
1932 — Noteboom, Daniel vs Buerger, Victor — 1-0 — Hastings ENG
7…Nc6 — 16.0% (268 parties)
1930 — Opocensky, Karel vs Flohr, Salo — 1-0 — Prague-ch Prague CZE
1930 — Vidmar, Milan Sr vs Alekhine, Alexander — 0-1 — San Remo ITA
1931 — Stahlberg, Gideon vs Flohr, Salo — 1/2-1/2 — Goteborg SWE
1932 — Rauzer, Vsevolod vs Lisitsin, Georgy — 0-1 — Kiev UKR
1932 — Gygli, Fritz vs Voellmy, Erwin — 1/2-1/2 — Bern SUI
7…O-O — 10.5% (176 parties)
1928 — Bogoljubow, Efim vs Euwe, Max — 1/2-1/2 — Nederland m-II
1930 — Rey Ardid, Ramon vs Golmayo Torriente, Manuel — 1-0 — Madrid m ch-ESP
1930 — Noteboom, Daniel vs Saunders, Harold — 1-0 — Scarborough ENG
1930 — Landau, Salo vs Maroczy, Geza — 0-1 — NED
1932 — Araiza Munoz, Jose Joaquin vs Dake, Arthur William — 1-0 — Pasadena, CA USA
7…e5 — 6.0% (101 parties)
1973 — Grigorian, Karen vs Korchnoi, Viktor — 1/2-1/2 — Moskou ch-URS
1975 — Forintos, Gyozo V vs Sydor, Andrzej — 1-0 — Cienfuegos City CUB
1983 — Vainerman, Igor vs Peresipkin, Vladimir — 0-1 — Simferopol UKR
1984 — Toth, Bela vs Korchnoi, Viktor — 1/2-1/2 — Suisse tt
1989 — Gaborit, Jean-Pierre vs Hauchard, Arnaud — 0-1 — France