A79d - 12…b6 - Classical, Main Line (1959)

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A79d — Classical, Main Line (1959)
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Na6 11.f3 Nc7 12.a4 b6
Les coups candidats
Ambassadeurs : Matulovic, Milan (6x), Janosevic, Dragoljub (6x), Stein, Bernd (5x), Donner, Jan-Hein (5x), Gligoric, Sofija (5x), Rapaka Samuel Paul (4x), Jansson, Borje (4x), Porath, Yosef (3x)
Ambassadeurs : Balcerowski, Witold (4x), Mecking, Henrique (3x), Vantika Agrawal (3x), Kavalek, Lubomir (2x), Garcia R., Luis Ernesto (2x), Wikman, Ragnar (2x), Janosevic, Dragoljub (2x), Ogaard, Leif (2x)
13.a5 — 2.6% (21 parties)
Ambassadeurs : Saidy, Anthony (2x), Vranesic, Zvonko (2x), Matulovic, Milan (2x), Janosevic, Dragoljub (2x), Cebalo, Miso (1x), Bjerre, Troels (1x), Malmgren, Sven-Goran (1x), De Fatia (1x)
13.Bb5 — 1.6% (13 parties)
Ambassadeurs : Zitzewitz, Roland (2x), La Flair, Roger (1x), McCarthy, Brian (1x), Sarosi, Zoltan (1x), Tolnai, Tibor (1x), Auer, Martin (1x), Gudath, Reiner (1x), Schemm, Heiko (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 13.Nc4 13.Kh1 13.a5 13.Bb5
<1800 16 69% 25% — —
1800-2200 188 74% 15% 2% 3%
2200-2600 400 71% 24% 1% 2%
2600+ 5 40% 60% — —
Évolution par décennie (% des parties)
Décennie N parties 13.Nc4 13.Kh1 13.a5 13.Bb5
1950s 3 33% — — —
1960s 50 66% 22% 8% —
1970s 114 65% 22% 9% 1%
1980s 172 74% 19% 2% 3%
1990s 117 74% 21% 3% 1%
2000s 141 74% 19% — 1%
2010s 101 74% 17% 1% 2%
2020s 105 62% 32% — 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
13.Nc4 74% 62% ▼ -12.4%
13.Kh1 17% 32% ▲ +15.5%
13.a5 1% 0% ▼ -1.0%
13.Bb5 2% 1% ▼ -1.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Hou, Yifan — 1 partie
Parties historiques
13.Nc4 — 70.5% (566 parties)
1955 — Birbrager, Isaak vs Tal, Mikhail — 1/2-1/2 — Voroshilovgrad
1961 — Petrosian, Tigran V. vs Shmidt, Aleksandr — 1-0 — Zurich SUI
1961 — Novotelnov, Nikolai vs Blechzin, Igor — 0-1 — Leningrad RUS
1961 — Beni, Alfred vs Langeweg, Kick — 1-0 — Zevenaar
1962 — Grimshaw, Daejon vs Rivera, Daniel — 1-0 — Intercollegiate tt
13.Kh1 — 21.3% (171 parties)
1966 — Miguel, Nahuel vs Fischer, Robert J — 0-1 — Havana CUB
1967 — Gligoric, Sofija vs Matulovic, Milan — 1/2-1/2 — Sousse izt
1968 — Kavalek, Lubomir vs Adamski, Jan — 1-0 — Polanica Zdroj POL
1968 — Kavalek, Lubomir vs Janosevic, Dragoljub — 1-0 — Sarajevo BIH
1968 — Ocampo, Raul vs Garcia R., Luis Ernesto — 1/2-1/2 — Mar del Plata ch-ARG
13.a5 — 2.6% (21 parties)
1965 — Pietzsch, Wolfgang vs Buslaev, Aleksander — 1-0 — Tbilisi Tbilisi GEO
1968 — De Fatia vs Saidy, Anthony — 1-0 — USA
1969 — Saidy, Anthony vs Cebalo, Miso — 1/2-1/2 — Zagreb CRO
1969 — Bjerre, Troels vs Malmgren, Sven-Goran — 1-0 — Dresden GER
1970 — Emma, Jaime vs Silva Nazzari, Roberto — 1-0 — Mar del Plata ARG
13.Bb5 — 1.6% (13 parties)
1976 — Rytov, Boris vs Zhuravlev, Valery — 1-0 — Tallin ch Armed Forc
1982 — Fernandes, Antonio vs Sequeira, Joao F A — 1/2-1/2 — Mangualde
1985 — Zitzewitz, Roland vs Gudath, Reiner — 1-0 — GER
1987 — Sarosi, Zoltan vs Tolnai, Tibor — 0-1 — Kecskemet HUN
1987 — Zitzewitz, Roland vs Auer, Martin — 1-0 — GER