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B51f —
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4
Eval: [+0.01]
Les coups candidats
Ambassadeurs : Guliyev, Nadir (22x), Velicka, Petr (21x), Lugovskoy, Maxim (20x), Stocek, Jiri (19x), Munoz, Miguel (19x), Tocklin, Tomi (17x), Sarana, Alexey (17x), Cheparinov, Ivan (16x)
Ambassadeurs : Velicka, Petr (22x), Gormally, Daniel W (20x), Suba, Mihai (15x), Vorobiov, Evgeny E. (14x), Amonatov, Farrukh (14x), Ljubojevic, Ljubomir (13x), Csom, Istvan (12x), Gallagher, Joseph G. (12x)
4…a6 — 4.7% (377 parties)
Ambassadeurs : Bu, Xiangzhi (6x), Lu, Shanglei (4x), Zvjaginsev, Vadim (3x), Ni, Hua (3x), Friedmann, Rafael (3x), Bologan, Victor (3x), Piceu, Tom (3x), Papp, Gellert (3x)
4…Qa5+ — 0.2% (13 parties)
Ambassadeurs : Francisco, Luis (1x), Lameira, Dinis (1x), Szaboky, Tibor (1x), Allen, Michael (1x), Raats, Dan (1x), Tayar, Jonathan (1x), Bos, Joachim (1x), Kvisla, Johannes Luangtep (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…cxd4 4…Nf6 4…a6 4…Qa5+
<1800 121 70% 25% 4% 1%
1800-2200 1984 69% 24% 6% 0%
2200-2600 4967 61% 36% 4% 0%
2600+ 373 80% 17% 3%
Évolution par décennie (% des parties)
Décennie N parties 4…cxd4 4…Nf6 4…a6 4…Qa5+
1940s 1 100%
1950s 15 73% 7% 13%
1960s 25 68% 28%
1970s 278 26% 67% 6%
1980s 183 31% 61% 7%
1990s 727 33% 62% 5%
2000s 1698 33% 61% 6% 0%
2010s 3349 73% 22% 5% 0%
2020s 1741 94% 5% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…cxd4 73% 94% ▲ +20.8%
4…Nf6 22% 5% ▼ -16.9%
4…a6 5% 2% ▼ -3.5%
4…Qa5+ 0% 0% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Kasparov, Garry — 9 parties
Carlsen, Magnus — 8 parties
Hou, Yifan — 8 parties
Ju, Wenjun — 5 parties
Tal, Mikhail — 3 parties
Smyslov, Vladimir — 1 partie
Kramnik, Vladimir — 1 partie
Ding, Liren — 1 partie
Parties historiques
4…cxd4 — 62.7% (5024 parties)
1940 — Lilienthal, Andor vs Kotov Lundqvist, Alex — 1-0 — Moskou ch-URS
1950 — Lambert, Hans vs Rossetto, Hector — 0-1 — Dubrovnik olm
1950 — Garcia Lambert, Hugo vs Rossetto, Hector — 0-1 — Dubrovnik CRO
1952 — Filipov, Filip vs Bobekov, Radko — 1/2-1/2 — Sofia BUL
1952 — Gross, Henry vs Spiller, Arthur R — 1-0 — San Francisco, Ca
4…Nf6 — 32.4% (2596 parties)
1957 — Shagalovich, Abo vs Shcherbakov, Ruslan — 1-0 — Minsk BLR
1971 — Larsen, Bent vs Csom, Istvan — 1-0 — Palma de Majorca ESP
1971 — Rogoff, Kenneth vs Hausner, Ivan — 1-0 — Athens GRE
1971 — Vadasz, Laszlo vs Csom, Istvan — 0-1 — Budapest HUN
1971 — Fedorov, Vladislav vs Ribli, Zoltan — 1/2-1/2 — Moscow RUS
4…a6 — 4.7% (377 parties)
1953 — Keller, Dieter vs Panno, Oscar — 1/2-1/2 — Copenhagen DEN
1954 — Bhend, Edwin vs Toran Albero, Roman — 1/2-1/2 — Munich GER
1963 — Barendregt, Johan vs Bednarski, Jacek — 1/2-1/2 — Polanica Zdroj POL
1963 — Kapengut, Albert vs Tukmakov, Vladimir B — 0-1 — Soviet Union
1964 — Shamshin, Rudolf vs Korsakov, Boris A — 0-1 — ?
4…Qa5+ — 0.2% (13 parties)
2003 — Francisco, Luis vs Lameira, Dinis — 0-1 — Lisbon POR
2003 — Szaboky, Tibor vs Allen, Michael — 0-1 — bcc
2005 — Bos, Joachim vs Kvisla, Johannes Luangtep — 1/2-1/2 — Calvi
2006 — Raats, Dan vs Tayar, Jonathan — 0-1 — Kitchener
2010 — Van Arkel, Rogier vs Beijer, Bart — 1/2-1/2 — Netherlands NED