B23q — Closed, Grand Prix (1903)
1.e4 c5 2.Nc3 Nc6 3.f4 e6
Les coups candidats
Ambassadeurs : Erlbeck, Peter (22x), Koronowski, Heinz-Juergen (16x), Niebling, Ferdinand (15x), Zinn, Lothar (14x), Boronyak, Arpad (14x), Weeramantry, Sunil (13x), Lazarevic, Milunka (12x), Szell, Lajos (12x)
4.Bc4 — 5.5% (638 parties)
Ambassadeurs : Trnovec, Mihaly (6x), Karer, Gregor (4x), Rotermund, Verena (4x), Mynar, Martin (3x), Wainer, Daniel (3x), Maucci, Luis Marcelo (3x), Pena Gomez, Manuel (3x), Hampel, Rudolf (3x)
4.Bb5 — 4.1% (478 parties)
Ambassadeurs : Hofer, Rudolf (4x), Anttila, Perttu (3x), Stanchev, Plamen (3x), Dunn, John (3x), Krumova, Ani (2x), Haddock, Paul (2x), Bharathi, R. (2x), Hacaperka, Michal (2x)
4.g3 — 1.0% (116 parties)
Ambassadeurs : Burakovsky, Marat (7x), Berger, Steve (2x), Haecker, Gabriele (2x), Pietrzak, Martyna (2x), Perdekamp, M. (1x), Norgauer, Michael (1x), Dragasevic, Antonina (1x), Berglitz, Regina (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nf3 4.Bc4 4.Bb5 4.g3
<1800 1276 84% 6% 8% 1%
1800-2200 6136 88% 6% 4% 1%
2200-2600 2440 94% 3% 2% 1%
2600+ 12 92%
Évolution par décennie (% des parties)
Décennie N parties 4.Nf3 4.Bc4 4.Bb5 4.g3
1950s 36 94% 3%
1960s 112 95% 3% 3%
1970s 277 94% 4% 1% 1%
1980s 372 92% 5% 1% 1%
1990s 2194 89% 7% 2% 1%
2000s 3706 88% 7% 4% 1%
2010s 3948 88% 5% 6% 1%
2020s 882 88% 2% 8% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nf3 88% 88% -0.4%
4.Bc4 5% 2% ▼ -2.0%
4.Bb5 6% 8% ▲ +1.9%
4.g3 1% 1% +0.2%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 3 parties
Anand, Viswanathan — 2 parties
Kramnik, Vladimir — 1 partie
Carlsen, Magnus — 1 partie
Ju, Wenjun — 1 partie
Hou, Yifan — 1 partie
Parties historiques
4.Nf3 — 88.7% (10219 parties)
1950 — Karacsonyi, Laszlo vs Soos, Bela — 1-0 — Marosvasarhely
1950 — Tranmer, Eileen vs Hermanova, Roza — 1-0 — Moscow RUS
1951 — Rico, Amina vs Toran Albero, Roman — 0-1 — Gijon
1951 — Rico Gonzalez, Antonio vs Toran Albero, Roman — 0-1 — Gijon
1952 — Dantas, Nelson vs Bolbochan, Julio — 0-1 — Rio de Janeiro BRA
4.Bc4 — 5.5% (638 parties)
1967 — Mista, Ladislav vs Trincardi, Tullio — 1/2-1/2 — Reggio Emilia ITA
1968 — Charouz, Milan vs Lechtynsky, Jiri — 0-1 — Harrachov CSR chT
1969 — Espig, Lutz vs Boudy Bueno, Julio Leonardo — 1-0 — Zinnowitz GER
1970 — Xynogalas vs Senkiewicz, Mike — 0-1 — Haifa ISR
1970 — Kazanski, Boris vs Stull, Norbert — 0-1 — Siegen GER
4.Bb5 — 4.1% (478 parties)
1956 — Florian, Jaromir vs Herink, Miroslav — 0-1 — Podebrady CZE
1964 — Tikhomirov, Anatoly vs Kutianin, Yuri — 1-0 — ?
1967 — Anagnostopoulos, Konstantinos vs Sellas, Vasilios — 1-0 — Athens GRE
1969 — Shikova, Vesmina vs Sonnenberg, Karin — 1-0 — Halle/Saale
1973 — Morillas, Emilio vs Pleci, Isaias — 1-0 — Buenos Aires ARG
4.g3 — 1.0% (116 parties)
1971 — Cronick, Steve vs Baljon, Christofoor — 0-1 — Groningen NED
1973 — Mallet, Thiago vs Rodriguez R, Luis Jose — 0-1 — US Open
1983 — Perdekamp, M. vs Norgauer, Michael — 1-0 — Konstanza U20
1988 — Dragasevic, Antonina vs Berglitz, Regina — 1-0 — Dortmund GER
1988 — Calton, DW. vs Hankinson, Chris J — 1-0 — Lansing ch-MI op