B21c — Grand Prix (1949)
1.e4 c5 2.f4 d6
Les coups candidats
3.Nf3 — 78.1% (2400 parties)
Ambassadeurs : Kadonas, Kestutis (10x), Vann, Monica S (9x), Roos, Karin (8x), Wall, Bill (8x), Montoro, Gustavo E. (7x), Gaciu, Vlad-Jan (5x), Lesny, Stefan (4x), Farges, Yves (3x)
Ambassadeurs : Vlassov, Nikolai (3x), Khan, Shams (3x), Payet, Amelie (2x), Jonas, Peter (2x), Zinn, Lothar (1x), Garcia Martinez, Silvino (1x), Lazarevic, Aleksandar (1x), Wolpert, Linus (1x)
3.Bc4 — 4.2% (128 parties)
Ambassadeurs : Horn, Pascal (3x), Poteas, Ioannis (2x), Krol, Wladyslaw (2x), Smith, MJ. (1x), Poole, PH. (1x), Cheng, Winter (1x), Lehmann, Christina (1x), Piazzini, Luis (1x)
3.Bb5+ — 3.4% (104 parties)
Ambassadeurs : Vann, Monica S (3x), Banasova, Katarina (3x), Cheng, Winter (1x), Heintze, Marion (1x), Engels, Ludwig (1x), Rabar, Braslav (1x), Wall, George (1x), Wheeler, Jerry (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3.Nf3 3.Nc3 3.Bc4 3.Bb5+
<1800 470 76% 9% 5% 3%
1800-2200 1316 80% 9% 3% 3%
2200-2600 267 81% 10% 1% 4%
2600+ 1 100%
Évolution par décennie (% des parties)
Décennie N parties 3.Nf3 3.Nc3 3.Bc4 3.Bb5+
1950s 28 79% 7% 4% 4%
1960s 34 76% 9% 6% 3%
1970s 83 78% 11% 2% 4%
1980s 143 77% 5% 3% 6%
1990s 776 79% 10% 4% 3%
2000s 1098 78% 9% 4% 4%
2010s 787 78% 9% 4% 3%
2020s 123 80% 11% 2% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3.Nf3 78% 80% ▲ +2.7%
3.Nc3 9% 11% ▲ +2.4%
3.Bc4 4% 2% ▼ -2.0%
3.Bb5+ 3% 2% ▼ -1.7%
Parties historiques
3.Nf3 — 78.1% (2400 parties)
1950 — Gordon, Morris vs Solana, Robert — 0-1 — Los Angeles, CA USA
1951 — Leinweber, Martina vs Paoli, Alessio Matteo — 0-1 — Venice ITA
1951 — Juarez, Carlos Eleodoro vs Casas Perea, Fernando — 1-0 — Buenos Aires ARG
1951 — Donk, HJ. vs Donner, Jan-Hein — 1-0 — Winterwedstrijd
1951 — Kinzel, Anton vs Mueller, Hans — 1-0 — Vienna AUT
3.Nc3 — 9.2% (283 parties)
1957 — Nielsen, Jacob vs Flammiger, H. — 1-0 — cr.
1959 — Lazarevic, Aleksandar vs Wolpert, Linus — 1-0 — Kiev UKR
1964 — Coskun, Kursat vs Camarena, Joaquin — 1-0 — Tel Aviv ISR
1965 — Medina-Garcia, Antonio vs Garcia Orus, Francisco — 1/2-1/2 — Palma de Majorca ESP
1968 — Zinn, Lothar vs Garcia Martinez, Silvino — 1-0 — Havana CUB
3.Bc4 — 4.2% (128 parties)
1959 — Piazzini, Luis vs Puiggros, Guillermo — 1/2-1/2 — Quilmes
1963 — Smith, MJ. vs Poole, PH. — 1-0 — Bath ENG
1968 — Cheng, Winter vs Lehmann, Christina — 1-0 — Zinnowitz zt women
1974 — Sikes, Haskell vs Wall, Alejandro — 1/2-1/2 — U Tapao, Thailand
1977 — Papandreou, Nikolaos vs Zahilas, Loukas N. — 0-1 — ?
3.Bb5+ — 3.4% (104 parties)
1952 — Engels, Ludwig vs Rabar, Braslav — 1/2-1/2 — Rio de Janeiro BRA
1969 — Cheng, Winter vs Heintze, Marion — 1-0 — Schwerin GER
1970 — Midjord, Joan Paetur vs Palmer, Bernard — 1-0 — Siegen olm
1973 — Wall, George vs Wheeler, Jerry — 1-0 — Music City op
1977 — Goncharoff, Nik vs Kornfeld, A. — 1/2-1/2 — ?