D46b - 7.O-O - Romih (1930)

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D46b — Romih (1930)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bb4 7.O-O
Les coups candidats
Ambassadeurs : Bisguier, Arthur B (9x), Tal, Mikhail (9x), Uhlmann, Wolfgang (8x), Minev, Nikolay N (8x), Abanin, Vladimir (5x), Fichtl, Jiri (5x), Bobotsov, Milko G (4x), Taimanov, Mark (4x)
7…Bxc3 — 5.0% (26 parties)
Ambassadeurs : Alhat Archana (1x), Reichenpfader, E. (1x), Bergen, Peter (1x), Legat, Albert (1x), Olesen, Martin (1x), De Witt, Lee A (1x), Bazan Solera, Manuel (1x), Lopez C., Angel Estuardo (1x)
7…dxc4 — 3.6% (19 parties)
Ambassadeurs : Colpa, Husein (2x), Shadrin, Dmitriy (1x), Tatarkin, N (1x), Veresciaka, Jurijus (1x), Savickiene, Viktorija (1x), Zhukova, Natalia (1x), Mac Connell, L. (1x), Greenfeld, Alon (1x)
7…Qe7 — 1.7% (9 parties)
Ambassadeurs : Rellstab, Ludwig (3x), Johannessen, Svein (1x), Steiner, Herman (1x), Horowitz, Albert Israel (1x), Simonson, Albert (1x), Ivkov, Borislav (1x), Kolarov, Atanas S. (1x), Porrecca, Giorgio (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…O-O 7…Bxc3 7…dxc4 7…Qe7
<1800 63 70% 11% 8% 3%
1800-2200 161 80% 7% 3% 1%
2200-2600 130 93% 1% 2% 2%
2600+ 2 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 7…O-O 7…Bxc3 7…dxc4 7…Qe7
1950s 44 89% — 2% 9%
1960s 40 98% — — 2%
1970s 30 100% — — —
1980s 50 98% — — 2%
1990s 80 84% 5% 4% 1%
2000s 130 78% 10% 3% 1%
2010s 129 74% 7% 9% 1%
2020s 19 74% — — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…O-O 74% 74% +0.0%
7…Bxc3 7% 0% ▼ -7.0%
7…dxc4 9% 0% ▼ -8.5%
7…Qe7 1% 0% ▼ -0.8%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 9 parties
Botvinnik, Mikhail — 3 parties
Karpov, Anatoly — 1 partie
Parties historiques
7…O-O — 83.3% (435 parties)
1950 — Troianescu, Octav vs Simagin, Vladimir — 0-1 — Schiavno Zdroj
1950 — Schapel, Karl vs Taimanov, Mark — 0-1 — It Schiavno Zdroj POL
1950 — Szapiel, Mateusz vs Taimanov, Mark — 0-1 — Szawno Zdroj
1950 — Al Balushi, Shuaib Abdul Wahab vs Taimanov, Mark — 0-1 — Schiavno Zdroj
1951 — Darsniek, N. vs Tal, Mikhail — 0-1 — Riga LAT
7…Bxc3 — 5.0% (26 parties)
1991 — Bazan Solera, Manuel vs Lopez C., Angel Estuardo — 1-0 — Oviedo rapid
1992 — Olesen, Martin vs De Witt, Lee A — 1-0 — Cedar
1993 — Bergen, Peter vs Legat, Albert — 1-0 — Finkenstein op
1996 — Alhat Archana vs Reichenpfader, E. — 1-0 — ?
2001 — Brodowski, Piotr vs Paluba, Robert — 1-0 — Kolobrzeg
7…dxc4 — 3.6% (19 parties)
1957 — Shadrin, Dmitriy vs Tatarkin, N — 1-0 — ?
1993 — Zhukova, Natalia vs Mac Connell, L. — 1-0 — Szombathely
1998 — Greenfeld, Alon vs Pantelidis, Michael — 1-0 — Korinthos GRE
1999 — Veresciaka, Jurijus vs Savickiene, Viktorija — 1-0 — Plateliai
2004 — Plisko, Kristijan vs Stuart, Keith — 0-1 — ?
7…Qe7 — 1.7% (9 parties)
1950 — Porrecca, Giorgio vs Rellstab, Ludwig — 0-1 — Dubrovnik CRO
1951 — Steiner, Herman vs Rellstab, Ludwig — 1-0 — Reggio Emilia ITA
1951 — Horowitz, Albert Israel vs Simonson, Albert — 1-0 — New York ch-USA
1957 — Ivkov, Borislav vs Kolarov, Atanas S. — 0-1 — Wageningen NED
1961 — Johannessen, Svein vs Rellstab, Ludwig — 1/2-1/2 — Zevenaar NED