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B25i — Closed, Botvinnik Defense, with f4 (1955)
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5
Les coups candidats
7.Nh3 — 47.9% (783 parties)
Ambassadeurs : Starostits, Ilmars (15x), Bohak, Janko (11x), Donev, Ivo (9x), Hlavac, Rudolf (9x), Bastian, Herbert (8x), Roos, Daniel (6x), Schlesinger, Omri (6x), Gheorghiu, Florin (5x)
Ambassadeurs : Bastian, Herbert (7x), Blatny, Frantisek (5x), Krapivin, Alexander (4x), Siaperas, Triantafyllos (3x), Lehti, Juhani (3x), Drexel, Christian (3x), Martemianov, Iaroslav (3x), Liebert, Heinz (3x)
7.Nge2 — 4.9% (80 parties)
Ambassadeurs : Gerard Rochanhlua Keivom (2x), Tran, Ngoc Lan (2x), Drumev, Avram (1x), Popov, Vladilen (1x), Carmel, Ephraim (1x), Ali Gatee (1x), De Saboya E Silva, Jose Frederico (1x), Tsouros, Georgios (1x)
7.Be3 — 1.1% (18 parties)
Ambassadeurs : Benocci, Umiliano (1x), Leoncini, Mario (1x), Margraf, Daniel (1x), Senff, Martin (1x), Bujdoso, Bela (1x), Langhold, Norbert (1x), Zbirka, Peter (1x), Kubala, Jan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.Nh3 7.Nf3 7.Nge2 7.Be3
<1800 80 20% 64% 15% 1%
1800-2200 680 42% 50% 5% 1%
2200-2600 621 61% 35% 2% 1%
2600+ 4 75% 25% — —
Évolution par décennie (% des parties)
Décennie N parties 7.Nh3 7.Nf3 7.Nge2 7.Be3
1950s 1 — — 100% —
1960s 47 21% 66% 13% —
1970s 105 62% 34% 2% —
1980s 143 63% 33% 3% 1%
1990s 399 52% 39% 5% 2%
2000s 557 45% 47% 4% 1%
2010s 321 42% 51% 6% 0%
2020s 63 37% 52% 6% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.Nh3 42% 37% ▼ -5.5%
7.Nf3 51% 52% ▲ +1.3%
7.Nge2 6% 6% ▲ +0.7%
7.Be3 0% 3% ▲ +2.9%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Parties historiques
7.Nh3 — 47.9% (783 parties)
1968 — Wibe, Terje vs Pereira, Renato Cardoso — 1-0 — Lugano SUI
1968 — Zura, Jutta vs Georgieva, Antonina — 0-1 — Zinnowitz zt women
1968 — Lapiken, Peter Petrovich vs Rohland, Michael Karl — 1-0 — Aspen
1968 — Bak, Istvan vs Gheorghiu, Florin — 1-0 — Bucharest ROU
1968 — Bak, Istvan vs Gheorghiu, Florin — 1-0 — ?
7.Nf3 — 44.5% (728 parties)
1961 — Rinder, Elfriede vs Borisenko-Belova, Valentina — 0-1 — Vrnjacka Banja SRB
1961 — Milev, Zdravko vs Prakhov, Valentin Asenov — 1/2-1/2 — Sofia BUL
1961 — Chernov, Anton vs Salov, Sergej — 0-1 — ?
1962 — Ignatiev, Felix N vs Vasiukov, Evgeni — 1/2-1/2 — Moscow RUS
1962 — Minev, Nikolay N vs Vasiukov, Evgeni — 1/2-1/2 — Lasker mem Berlin-Ost
7.Nge2 — 4.9% (80 parties)
1955 — Matthai, Heinz vs Jursevskis, Miervaldis — 1/2-1/2 — Ottawa CAN
1961 — Urseanu, Veniamin vs Radovici, Corvin — 0-1 — Romania
1963 — Drumev, Avram vs Popov, Vladilen — 0-1 — Sofia BUL
1965 — Carmel, Ephraim vs Ali Gatee — 1/2-1/2 — Israel
1966 — Ladanyike-Karakas, Eva vs Asenova, Venka — 0-1 — Oberhausen
7.Be3 — 1.1% (18 parties)
1984 — Benocci, Umiliano vs Leoncini, Mario — 0-1 — Siena
1992 — Poljak, Srebrenka vs Kovalevskaya, Ekaterina — 0-1 — Hradec Kralove CZE
1993 — Bujdoso, Bela vs Langhold, Norbert — 1-0 — Eger
1993 — Aditya Tamrakar vs La Flair, Roger — 0-1 — Mineola
1993 — Redon, Bruno vs Milov, Vadim — 1/2-1/2 — Paris FRA