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D45a —
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3
Les coups candidats
Ambassadeurs : Dreev, Aleksey (181x), Weber, Karlheinz (173x), Korneev, Oleg (166x), Sveshnikov, Evgeny (142x), Kaidanov, Gregory (124x), Krasenkow, Michal (103x), Lukacs, Peter (102x), Ribli, Zoltan (96x)
Ambassadeurs : ? (20x), Glaser, Karel (13x), Molander, Riku (7x), Kolanek, Roman (6x), Paidousis, Aristidis (5x), Lucena Cifré, Rafael José (5x), Silman, Jeremy (4x), Kiss, Judit (4x)
Ambassadeurs : Basson, Heinrich (22x), Viner, Phillip (8x), Bartha, Sandor (7x), Jahn, Constanze (6x), Auvinen, Esa (6x), Le Thanh Tu (5x), Zabystrzan, Pavel (5x), Paasikangas, Johanna (4x)
Ambassadeurs : Godena, Michele (51x), Gurevich, Valery M. (36x), Fridman, Daniel (33x), Malakhatko, Vadim (25x), Rublevsky, Sergei (18x), Banusz, Tamas (16x), Bosch van Rosenthal, Edzard (15x), Gagunashvili, Merab (15x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…Nbd7 5…Bd6 5…Be7 5…a6
<1800 5973 69% 11% 10% 2%
1800-2200 37482 79% 9% 7% 2%
2200-2600 40876 90% 3% 2% 4%
2600+ 2666 89% 0% 0% 10%
Évolution par décennie (% des parties)
Décennie N parties 5…Nbd7 5…Bd6 5…Be7 5…a6
1950s 865 81% 3% 4% 8%
1960s 824 82% 5% 6% 4%
1970s 963 85% 3% 6% 3%
1980s 2639 88% 4% 5% 1%
1990s 13223 83% 7% 6% 1%
2000s 29586 80% 7% 6% 4%
2010s 38077 83% 6% 5% 3%
2020s 11517 86% 5% 4% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…Nbd7 83% 86% ▲ +2.3%
5…Bd6 6% 5% ▼ -1.0%
5…Be7 5% 4% ▼ -1.3%
5…a6 3% 4% ▲ +1.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Botvinnik, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Ding, Liren — 10 parties
Ju, Wenjun — 10 parties
Gukesh D — 10 parties
Hou, Yifan — 6 parties
Karpov, Aleksandr — 2 parties
Smyslov, Vladimir — 1 partie
Parties historiques
5…Nbd7 — 82.8% (80892 parties)
1950 — Neikirkh, Oleg vs Popov, Vesselin — 1/2-1/2 — Sofia BUL
1950 — Von Baudissin vs Borowski, Piotr — 1-0 — ?
1950 — Miguel, Nahuel vs Kotov, Alexander — 1/2-1/2 — Budapest HUN
1950 — Skrovina, Milan vs Nipgaus — 1-0 — ?
1950 — Collins Justin vs Bosch van Rosenthal, Edzard — 1/2-1/2 — corr Wch1
5…Bd6 — 6.4% (6211 parties)
1950 — Von Baudissin vs Osterwald, Karl Heinz — 1-0 — ?
1951 — De Freitas, Marcio Elisio vs Siqueira, Alexandre Carneiro — 1/2-1/2 — Fortaleza BRA
1951 — Uhlmann, Wolfgang vs Schroeder, Hermann — 0-1 — Leipzig GER
1951 — Maragliano, Laercio vs Mangini, Jose Henrique de Mello — 1/2-1/2 — Fortaleza BRA
1952 — Panno, Oscar vs Leiva, JC. — 1-0 — Buenos Aires ARG
5…Be7 — 5.1% (5014 parties)
1950 — Zielinski, Marek vs Demogue — 1-0 — cr ch FRA
1950 — Florian, Tibor vs Bely, Miklos — 1/2-1/2 — Budapest HUN
1950 — Langos, Jozsa vs Benini, Clarice — 1-0 — Moscow RUS
1950 — Aronin, Lev vs Ratner, Boris — 1-0 — URS-ch sf Gorky
1950 — Mueller, Claus vs Ruppe, Otto — 1-0 — Soemmerda GER
5…a6 — 3.1% (3010 parties)
1950 — Van den Berg, Carel B vs Bosch van Rosenthal, Edzard — 1/2-1/2 — Amsterdam NED
1950 — Stumpers, Louis vs Bosch van Rosenthal, Edzard — 0-1 — NLD-ch Amsterdam NED
1950 — Giustolisi, Alberto vs Kongshavn, Harry — 0-1 — Dubrovnik olm
1950 — Taimanov, Mark vs Havin — 1-0 — USSR
1950 — Porrecca, Giorgio vs Bosch van Rosenthal, Edzard — 1/2-1/2 — Dubrovnik CRO