D13d — Exchange (1920)
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Bf5
Les coups candidats
6.Qb3 — 70.1% (1287 parties)
Ambassadeurs : Roeder, Frank (17x), Roeder, Gerd, Dr. (11x), Basson, Heinrich (5x), Enevoldsen, Jens (4x), Pytel, Krzysztof (4x), Wood, Ben A (4x), Havas, Juraj (4x), Tarakanov, Oleg (4x)
6.Bf4 — 18.6% (341 parties)
Ambassadeurs : Yee, Lorne (2x), Vencl, Radivoje (2x), Buechle, Regina (2x), Bauza, Lorenzo (1x), Idigoras Guisasola, Gregorio (1x), Knaak, Rainer (1x), Knaak, Joachim (1x), De Coverly, Roger D (1x)
Ambassadeurs : Franke, Raymond (1x), Johnson (1x), Knudten-Wessel, Annegret (1x), Freter, Anke (1x), Da Rocha, Cleber Lemos (1x), Costa, Harry Andriolo (1x), Arraya Victor (1x), Caserez, Luis Marcelo (1x)
6.Bg5 — 2.5% (46 parties)
Ambassadeurs : Falkowski, Kacper (1x), Garwood, B. (1x), Roechner (1x), Ginsburg, Mark (1x), Porte, Jacques (1x), Aroutunian, S (1x), Bauer, Mirko (1x), Hofmann, Annett (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.Qb3 6.Bf4 6.e3 6.Bg5
<1800 337 67% 19% 8% 3%
1800-2200 831 75% 16% 5% 2%
2200-2600 236 73% 21% 3% 0%
2600+ 1 100%
Évolution par décennie (% des parties)
Décennie N parties 6.Qb3 6.Bf4 6.e3 6.Bg5
1950s 8 88% 12%
1960s 11 82% 18%
1970s 18 67% 33%
1980s 57 74% 18% 5% 4%
1990s 338 65% 22% 6% 3%
2000s 569 68% 21% 6% 3%
2010s 663 75% 15% 7% 1%
2020s 171 68% 19% 3% 6%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.Qb3 75% 68% ▼ -7.0%
6.Bf4 15% 19% ▲ +3.8%
6.e3 7% 3% ▼ -4.2%
6.Bg5 1% 6% ▲ +5.4%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 2 parties
Parties historiques
6.Qb3 — 70.1% (1287 parties)
1950 — Wichert, Otto vs Latzel, Gerhard — 1-0 — Detmold
1952 — Miguel, Nahuel vs Enevoldsen, Jens — 1-0 — Helsinki olm
1953 — Zemitis, Val vs Ruys, Frank — 1-0 — San Francisco, CA USA
1954 — Veltmander, Iogannes vs Terpugov, Evgeny — 0-1 — Riga LAT
1954 — Simagin, Vladimir vs Terpugov, Evgeny — 1-0 — Riga LAT
6.Bf4 — 18.6% (341 parties)
1955 — Bauza, Lorenzo vs Idigoras Guisasola, Gregorio — 1/2-1/2 — Mar del Plata ARG
1967 — Knaak, Rainer vs Knaak, Joachim — 1/2-1/2 — Glauchau
1969 — De Coverly, Roger D vs Trethewey, F. — 0-1 — Athenaeum
1972 — Doda, Zbigniew vs Bednarski, Jacek — 1/2-1/2 — Wroclaw POL
1976 — Baumbach, Friedrich, Dr. vs Thormann, Wolfgang — 1/2-1/2 — Groeditz GER
6.e3 — 5.8% (106 parties)
1984 — Franke, Raymond vs Johnson — 1-0 — Plymouth ch-MI op
1986 — Da Rocha, Cleber Lemos vs Costa, Harry Andriolo — 1-0 — Rio de Janeiro BRA
1988 — Knudten-Wessel, Annegret vs Freter, Anke — 1/2-1/2 — Landes-Einzelmeister
1991 — Rothenhagen, Siegfried vs Sorg, H. — 1-0 — corr Tch-GER
1993 — Donnelly, Ruth vs Scheytt, Oda Elisabeth — 1-0 — Bad Wildbad GER
6.Bg5 — 2.5% (46 parties)
1980 — Roechner vs Ginsburg, Mark — 1-0 — Ohio Congress
1985 — Falkowski, Kacper vs Garwood, B. — 0-1 — E Detroit Motor City op
1990 — Porte, Jacques vs Aroutunian, S — 1/2-1/2 — Provence
1991 — Vangilder, W. vs Fletcher, Gerald D — 0-1 — E Lansing ch-MI opB
1993 — Martinez Serantes, Oscar vs Castelo Barbeito, Daniel — 1/2-1/2 — ?