B51a - 3…Nd7 - Moscow 3…Nd7 (1950)

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B51a — Moscow 3…Nd7 (1950)
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7
Les coups candidats
Ambassadeurs : Oratovsky, Michael (36x), Nepomniachtchi, Ian (26x), Rozentalis, Eduardas (22x), Muzychuk, Anna (21x), Komliakov, Viktor (19x), Xu, Yi (16x), Wang, Chen (15x), Niemann, Hans Moke (15x)
Ambassadeurs : Velicka, Petr (42x), Stocek, Jiri (25x), Sarana, Alexey (17x), Suba, Mihai (15x), Ljubojevic, Ljubomir (14x), Carlsson, Pontus (14x), Mikheeva, Galina (14x), Lugovskoy, Maxim (13x)
Ambassadeurs : Svetushkin, Dmitry (22x), Markidis, Konstantinos (22x), Vujosevic, Vladimir (13x), Miroshnichenko, Evgenij (12x), Bernal Varela, Nelson (12x), Rasik, Vitezslav (11x), Merry, Alan B (10x), Vachier-Lagrave, Maxime (10x)
4.a4 — 7.6% (1876 parties)
Ambassadeurs : Solodovnichenko, Yuri (13x), Vlachos, Anatole (12x), Mammadova, Gulay (12x), Rajesh Kumar Jaiswal (11x), Vokhidov, Shamsiddin (10x), Villeneuve, Robert (9x), Hobson, Kenneth (9x), Wharrier, Jonathon A (8x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.O-O 4.d4 4.c3 4.a4
<1800 1082 40% 27% 11% 7%
1800-2200 8221 39% 31% 12% 8%
2200-2600 13428 35% 36% 12% 8%
2600+ 985 37% 32% 11% 9%
Évolution par décennie (% des parties)
Décennie N parties 4.O-O 4.d4 4.c3 4.a4
1950s 43 21% 35% 37% —
1960s 57 25% 44% 16% 5%
1970s 424 19% 66% 10% 2%
1980s 352 28% 53% 15% 1%
1990s 1797 40% 40% 12% 2%
2000s 3521 33% 48% 12% 1%
2010s 9661 42% 35% 13% 4%
2020s 8858 33% 23% 10% 16%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.O-O 42% 33% ▼ -9.6%
4.d4 35% 23% ▼ -11.8%
4.c3 13% 10% ▼ -2.6%
4.a4 4% 16% ▲ +12.7%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Ju, Wenjun — 10 parties
Ding, Liren — 7 parties
Gukesh D — 5 parties
Tal, Mikhail — 3 parties
Kramnik, Vladimir — 2 parties
Karpov, Anatoly — 1 partie
Smyslov, Vladimir — 1 partie
Parties historiques
4.O-O — 36.6% (9047 parties)
1950 — Kostic, Boris vs Miguel, Nahuel — 0-1 — Bled SLO
1950 — Mueller, Philip vs Johner, Hans — 0-1 — Lucerne SUI
1952 — Rossolimo, Nicolas vs Eliskases, Erich — 1/2-1/2 — Havana CUB
1952 — Rossolimo, Nicolas vs Miguel, Nahuel — 0-1 — Havana CUB
1952 — Kremer, Paul vs Carvalho, Fabio Dos Santos De O — 0-1 — Helsinki olm
4.d4 — 33.7% (8327 parties)
1950 — Lambert, Hans vs Rossetto, Hector — 0-1 — Dubrovnik olm
1950 — Lambert, Hans vs Rossetto, Hector — 0-1 — Dubrovnik olm
1952 — Gligoric, Sofija vs Rapaka Samuel Paul — 1/2-1/2 — Helsinki olm
1952 — Boutteville, Cesar vs Paulus, Joseph — 1/2-1/2 — Charleville Mezieres
1952 — Gross, Henry vs Spiller, Arthur R — 1-0 — San Francisco, Ca
4.c3 — 11.9% (2932 parties)
1950 — Grushkova, Bellska Nina vs Chaude de Silans, Chantal — 0-1 — Moscow RUS
1950 — Trevenen, Henry Vickers W vs Abiolla James — 1/2-1/2 — Southsea
1954 — Koskinen, Heikki vs Anay Barche — 0-1 — Praag zt
1954 — Bak, Istvan vs Szilagyi, Gyorgy Laszlo — 1-0 — Budapest HUN
1954 — Kracmar, Jindrich vs Brat, Vaclav Dr — 0-1 — Jablonec nad Nisou
4.a4 — 7.6% (1876 parties)
1968 — Zwaig, Arne vs Bedros, Jacques — 1-0 — Lugano SUI
1969 — De Rooi, Paul vs Maeder, Karl-Heinz — 0-1 — Amsterdam NED
1969 — Hempson, Peter W vs Botterill, George S. — 0-1 — Hastings ENG
1970 — Jasmin Behera vs Blackstone, John — 0-1 — Santa Monica, CA USA
1971 — Vadasz, Laszlo vs Forintos, Gyozo V — 1-0 — Budapest HUN