D90k - 6.Qb3 - Three Knights Exchange, Romanishin Variation (1925)

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D90k — Three Knights Exchange, Romanishin Variation (1925)
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Qb3
Les coups candidats
6…Nxc3 — 57.6% (480 parties)
Ambassadeurs : Essing, Arnold (7x), Romanishin, Oleg M (5x), Tisdall, Jonathan D (5x), Ker, Anthony F (4x), Weiss, Frank (4x), Salo, Heikki (4x), Tukmakov, Vladimir B (3x), Smejkal, Jan (3x)
6…Nb6 — 37.8% (315 parties)
Ambassadeurs : Jansa, Vlastimil (7x), Schuster, Karsten (5x), Tisdall, Jonathan D (4x), Salo, Heikki (4x), Schmidt, Ulrich (3x), Bemporad, Filippo (3x), Padevsky, Nikola (2x), Kuznecov, Alex (2x)
Ambassadeurs : Zalys, Ignas (1x), Grombacher, Walter (1x), Silbermann, Frank (1x), Olf, Hans-Helmut (1x), Levieux, Pascal (1x), Gendre, Kostia (1x), Kuoppamaki, Petri (1x), Rinne, Karl-Heinz (1x)
6…e6 — 0.5% (4 parties)
Ambassadeurs : Essing, Arnold (1x), Knispel, Don Cervelheira Silva (1x), Parker, Jonathan F (1x), Gilmore, Simon N (1x), Nikolopoulos, Dimitrios (1x), Agouras, Ioannis (1x), Garcia Alvaro, Francisco Enrique (1x), Guillaume, Jude Mirvens (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Nxc3 6…Nb6 6…c6 6…e6
<1800 28 79% 18% 4% —
1800-2200 316 55% 37% 7% 1%
2200-2600 343 59% 40% 1% —
2600+ 5 20% 80% — —
Évolution par décennie (% des parties)
Décennie N parties 6…Nxc3 6…Nb6 6…c6 6…e6
1950s 3 33% 33% 33% —
1960s 7 43% 57% — —
1970s 31 58% 42% — —
1980s 107 54% 41% 3% 2%
1990s 226 58% 36% 5% —
2000s 212 55% 40% 5% 0%
2010s 207 58% 39% 2% 0%
2020s 40 78% 18% 5% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Nxc3 58% 78% ▲ +19.0%
6…Nb6 39% 18% ▼ -21.1%
6…c6 2% 5% ▲ +2.6%
6…e6 0% 0% -0.5%
Parties historiques
6…Nxc3 — 57.6% (480 parties)
1951 — Borloy, Karoly vs Eugenio, Sarah De Oliveira — 0-1 — ?
1961 — Kramer, George vs Benko, Pal — 0-1 — New York ch-USA
1964 — Barrett, Gordon vs Thornton, W. — 1-0 — Downey, CA
1966 — Bologni, Marc Henri vs Porreca, Alessio — 1/2-1/2 — corr Italy
1972 — Szekely, Stefan vs Porreca, Giorgio — 0-1 — corr Eberhardt Wilhelm
6…Nb6 — 37.8% (315 parties)
1959 — Baumbach, Friedrich, Dr. vs Hartmann, Claus — 1/2-1/2 — GDR-ch Leipzig GER
1965 — Kovacs, Laszlo vs Padevsky, Nikola — 0-1 — ?
1966 — Padevsky, Nikola vs Gufeld, Eduard — 1/2-1/2 — ?
1967 — Hostalet Ferrer, Pedro Enrique vs Lewi, Jerzy — 1/2-1/2 — Groningen NED
1969 — Yoffie, Marc vs Uhlmann, Wolfgang — 0-1 — Skopje Skopje MKD
6…c6 — 4.0% (33 parties)
1958 — Zalys, Ignas vs Grombacher, Walter — 1/2-1/2 — ?
1988 — Kuoppamaki, Petri vs Rinne, Karl-Heinz — 1-0 — cr.
1989 — Silbermann, Frank vs Olf, Hans-Helmut — 1-0 — GER
1989 — Levieux, Pascal vs Gendre, Kostia — 1/2-1/2 — Urcuit
1991 — Jimenez Morales, Francisco vs Risueno, C. — 0-1 — Albacete ESP
6…e6 — 0.5% (4 parties)
1989 — Essing, Arnold vs Knispel, Don Cervelheira Silva — 1-0 — GER
1989 — Parker, Jonathan F vs Gilmore, Simon N — 1/2-1/2 — Derby
2001 — Nikolopoulos, Dimitrios vs Agouras, Ioannis — 0-1 — Athens GRE
2019 — Garcia Alvaro, Francisco Enrique vs Guillaume, Jude Mirvens — 1-0 — La Vega