E99l - 12.Bf2 g5 - Mar del Plata (1952)

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E99l — Mar del Plata (1952)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5 11.Be3 f4 12.Bf2 g5
Les coups candidats
13.Rc1 — 35.6% (2734 parties)
Ambassadeurs : Cuccumini, Vittorio (21x), Kazoks, Aivars (18x), Sambuev, Bator (15x), Bennborn, Jan (14x), Lanz Calavia, José María (14x), Ludevid i Massana, Joan (13x), Ponomarev, Aleksandr (12x), Tudor, Vasile (11x)
Ambassadeurs : Pogorelov, Ruslan (30x), Ikonnikov, Vyacheslav (27x), Kiriakov, Petr (26x), Brunner, Nicolas (17x), Korchnoi, Viktor (16x), Krivoshey, Sergei (16x), Kozul, Zdenko (15x), Kobylkin, Evgeni (13x)
13.Nd3 — 20.5% (1574 parties)
Ambassadeurs : Kurowski, Andrzej (26x), Shulman, Boris Yakovlevich (15x), Abdulmanov, Eduard Nafikhovich (14x), Helmer, Janos (12x), Ferre Pérez, Alberto (10x), Hildebrand, Gerald (9x), Kozlov, Vadim Yakovlevich (9x), Borisovs, Leonids (8x)
13.b4 — 10.6% (815 parties)
Ambassadeurs : Haecker, Martin (12x), Van de Mortel, Jan (8x), Gurevich, Dmitry (7x), Aden, Meino (7x), Morozov, Dmitry (7x), Om Prakash (7x), Piket, Jeroen (6x), Köhl, Rudolf (6x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 13.Rc1 13.a4 13.Nd3 13.b4
<1800 273 32% 19% 27% 14%
1800-2200 3318 35% 22% 24% 12%
2200-2600 3379 39% 28% 16% 8%
2600+ 71 39% 23% 23% 6%
Évolution par décennie (% des parties)
Décennie N parties 13.Rc1 13.a4 13.Nd3 13.b4
1950s 28 4% — 86% 11%
1960s 8 — — 38% 50%
1970s 22 5% 5% 68% 18%
1980s 156 12% 8% 13% 30%
1990s 1197 13% 50% 9% 11%
2000s 1851 31% 40% 14% 8%
2010s 3870 46% 14% 26% 9%
2020s 546 40% 12% 23% 22%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
13.Rc1 46% 40% ▼ -5.2%
13.a4 14% 12% ▼ -2.1%
13.Nd3 26% 23% ▼ -3.8%
13.b4 9% 22% ▲ +12.5%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 5 parties
Kasparov, Garry — 4 parties
Ding, Liren — 3 parties
Anand, Viswanathan — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
13.Rc1 — 35.6% (2734 parties)
1956 — Ujtelky, Maximilian vs Gereben, Erno — 1/2-1/2 — Warsaw POL
1979 — Secher, Kim vs Sorensen, Torben — 0-1 — Odense DEN
1980 — Green, Peter vs Frankel, Zygmund — 1-0 — New Zeeland
1981 — Koerant, Filipos vs Alexopoulos, Georgios 94 — 0-1 — Kallithea,Greece
1982 — Ahn, Changbum vs Harmon, Clark — 0-1 — Seattle, WA USA
13.a4 — 25.4% (1953 parties)
1976 — Fernandez, Jorge vs Zarlenga, Marcelo — 0-1 — Buenos Aires ARG
1983 — Ivanov, Igor V. vs Hebden, Mark L — 0-1 — Hastings ENG
1984 — Cooper, Jacob vs Bouaziz, Safwan — 1-0 — Thessaloniki olm
1986 — Oll, Lembit vs Gufeld, Eduard — 1/2-1/2 — Soviet Union
1987 — Korchnoi, Viktor vs Van der Wiel, John T.H. — 1-0 — Brussel blitz
13.Nd3 — 20.5% (1574 parties)
1952 — Taimanov, Mark vs Bronstein, David I — 1-0 — Moskou ch-URS
1952 — German, Eugenio vs Poschauko, Karl — 1-0 — Helsinki olm
1953 — O'Kelly de Galway, Alberic vs Borodin, Vladimir — 1-0 — Antwerp BEL
1953 — Eliskases, Erich vs Gligorić, Svetozar — 0-1 — Mar del Plata ARG
1953 — Khasidovsky, A vs Gufeld, Eduard — 0-1 — URS ch jr
13.b4 — 10.6% (815 parties)
1953 — Shaposhnikov, Yury vs Borisenko, Georgy K — 0-1 — Leningrad RUS
1953 — Szabo, Laszlo vs Spassky, Boris V. — 0-1 — Bucharest ROU
1959 — Elstner, Rudolf vs Redlich, Olaf — 0-1 — Berlin West
1960 — Longobuco, J. vs Silva Nazzari, Roberto — 1/2-1/2 — ?
1964 — Berger, Thomas vs Rapaka Samuel Paul — 0-1 — Amsterdam NED