D71b - 6.e4 (1949)

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D71b —
1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.cxd5 Nxd5 6.e4
Les coups candidats
Ambassadeurs : Ilincic, Zlatko (43x), Jirka, Jiri (24x), Kempinski, Robert (17x), Tregubov, Pavel V. (17x), Grabarczyk, Miroslaw (14x), Plat, Vojtech (14x), Ftacnik, Lubomir (13x), Brynell, Stellan (11x)
Ambassadeurs : Ilincic, Zlatko (20x), Donner, Jan-Hein (6x), Dvoirys, Semen I. (5x), Bareev, Evgeny (5x), Byrne, Robert E (4x), Djuric, Stefan (4x), Fernandez Garcia, Jose Luis(2) (4x), Yanofsky, Daniel Abraham (3x)
6…Nf6 — 0.6% (14 parties)
Ambassadeurs : Burger, Karl (1x), Weiss, Martin (1x), Varga, Peter (1x), Isepy, Jozsef (1x), Dizdarevic, Emir (1x), Di Lazzaro, Gabriele (1x), Perrusset, Barbara (1x), Guyon, Cyndie (1x)
6…c6 — 0.0% (1 parties)
Ambassadeurs : Hollands, George E (1x), Williams, Rufus H. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Nb6 6…Nb4 6…Nf6 6…c6
<1800 73 74% 25% — 1%
1800-2200 610 88% 10% 1% —
2200-2600 1348 84% 16% 0% —
2600+ 79 77% 23% — —
Évolution par décennie (% des parties)
Décennie N parties 6…Nb6 6…Nb4 6…Nf6 6…c6
1950s 98 56% 43% 1% —
1960s 43 47% 53% — —
1970s 58 59% 41% — —
1980s 107 52% 48% — —
1990s 300 70% 29% 1% —
2000s 638 79% 20% 1% —
2010s 813 93% 6% 1% —
2020s 326 94% 6% 0% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Nb6 93% 94% ▲ +0.5%
6…Nb4 6% 6% ▼ -0.5%
6…Nf6 1% 0% -0.3%
6…c6 0% 0% +0.3%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 7 parties
Kasparov, Garry — 6 parties
Ju, Wenjun — 6 parties
Anand, Viswanathan — 3 parties
Carlsen, Magnus — 3 parties
Parties historiques
6…Nb6 — 81.7% (1947 parties)
1950 — Bobekov, P. vs Filip, Miroslav — 1/2-1/2 — Prague CZE
1950 — Beni, Alfred vs Soluch, Leopold — 1-0 — Vienna AUT
1950 — Bolbochan, Jacobo vs Rossetto, Hector — 1/2-1/2 — Mar del Plata ARG
1950 — Salm, Maxwell vs Bostrom, R — 1-0 — Queensland ch
1950 — Rapaka Samuel Paul vs Gligoric, Sofija — 1-0 — Dubrovnik olm
6…Nb4 — 17.7% (421 parties)
1950 — Collet, Hugo vs Weichselbaumer, Ernst — 1-0 — Saarbruecken
1950 — Donner, Jan-Hein vs Milic, Borislav — 1/2-1/2 — Utrecht NED
1950 — Van den Berg, Cees vs Cortlever, Nico — 1/2-1/2 — Amsterdam ch-NED
1950 — Van den Berg, Carel B vs Pilnik, Herman — 0-1 — Amsterdam NED
1950 — Gawliczek, Andreas vs Averbakh, Yuri L — 0-1 — Schiavno Zdroj
6…Nf6 — 0.6% (14 parties)
1955 — Burger, Karl vs Weiss, Martin — 1/2-1/2 — ?
1994 — Dizdarevic, Emir vs Di Lazzaro, Gabriele — 1-0 — Montecatini Terme ITA
1998 — Varga, Peter vs Isepy, Jozsef — 1-0 — Miskolc
2001 — Barcza Zsolt vs Gallisz, Laszlo — 1/2-1/2 — Zalakaros
2003 — Perrusset, Barbara vs Guyon, Cyndie — 1-0 — ?
6…c6 — 0.0% (1 parties)
2020 — Hollands, George E vs Williams, Rufus H. — 1-0 — ICCF