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B20p — Snyder (1929)
1.e4 c5 2.b3 Nc6
Les coups candidats
3.Bb2 — 93.8% (5114 parties)
Ambassadeurs : Skorna, Ullrich (53x), Gelashvili, Tamaz (43x), Reprintsev, Alexander (30x), Vukovic, Zdravko (24x), Babits, Andras (21x), Czerniak, Moshe (19x), Tzermiadianos, Aggelos (14x), Repkova, Eva (14x)
Ambassadeurs : Splíchal, Josef (3x), Savova, Stefka (2x), Gavrilakis, Nikolaos (2x), Turoczi, Peter (2x), Muehl, Malte Luis (1x), Holub, Jan (1x), Gianordoli, Cesar (1x), Mendes, Silvio Luiz Teixeira (1x)
3.Bb5 — 1.0% (54 parties)
Ambassadeurs : Billing, Georg (3x), Ruiter, Chelsea (3x), Johannesson, Ingvar Thor (2x), Labrador, Jhoyli (2x), Naigelblat, Maximilien (2x), Antoszkiewicz, Gerhard (1x), Molina, Gloria Patricia (1x), Mateus, Martha (1x)
3.f4 — 1.0% (52 parties)
Ambassadeurs : Walta, Paivi (3x), Kougias, Hr (1x), Kaloskambis, Mihail (1x), Fehrig, Andreas (1x), Michaelsen, Nils (1x), Aliprantis (1x), Alexopoulos, Georgios 94 (1x), Skondras, Stavros (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3.Bb2 3.Nf3 3.Bb5 3.f4
<1800 368 89% 6% 3% 1%
1800-2200 2634 94% 3% 1% 1%
2200-2600 1734 97% 2% 1% 0%
2600+ 17 100%
Évolution par décennie (% des parties)
Décennie N parties 3.Bb2 3.Nf3 3.Bb5 3.f4
1950s 11 91% 9%
1960s 55 98% 2%
1970s 60 88% 8% 3%
1980s 239 94% 3% 0% 1%
1990s 945 94% 3% 1% 1%
2000s 1676 93% 3% 1% 1%
2010s 1918 94% 3% 1% 1%
2020s 549 95% 3% 1% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3.Bb2 94% 95% ▲ +1.1%
3.Nf3 3% 3% +0.2%
3.Bb5 1% 1% -0.3%
3.f4 1% 0% -0.5%
Joueurs célèbres
Champions du monde dans cette position
Ju, Wenjun — 2 parties
Kramnik, Vladimir — 2 parties
Anand, Viswanathan — 1 partie
Carlsen, Magnus — 1 partie
Gukesh D — 1 partie
Parties historiques
3.Bb2 — 93.8% (5114 parties)
1951 — Salas Romo, Julio vs Zamora Lima, Hazael — 1-0 — ?
1952 — Penrose, Jonathan vs Poulsen, Christian — 1/2-1/2 — Helsinki olm
1954 — Hidalgo, Charles vs Meyer, Peter — 1-0 — Los Angeles, CA USA
1954 — Kalkstein, Rodolfo vs Horberg, Bengt-Eric — 0-1 — Montevideo URU
1955 — Muehl, Malte Luis vs Betak Miroslav — 0-1 — Prague CZE
3.Nf3 — 3.0% (161 parties)
1955 — Muehl, Malte Luis vs Holub, Jan — 1/2-1/2 — ?
1961 — Gianordoli, Cesar vs Mendes, Silvio Luiz Teixeira — 0-1 — Vitoria
1970 — NASSIRI MUSTAPHAA vs Nelson, Wes — 0-1 — Walnut Creek
1976 — Zalys, Ignas vs Kleinplatz, Sam — 1/2-1/2 — Montreal Spring
1979 — Jelling, Erik vs Moser, Guenter — 1/2-1/2 — Viborg DEN
3.Bb5 — 1.0% (54 parties)
1989 — Billing, Georg vs Antoszkiewicz, Gerhard — 1/2-1/2 — ?
1990 — Billing, Georg vs Vefling, Gregers — 0-1 — ICCF World Cup6-7 sf24
1993 — Bruhn, Boris vs Miersch, Marco — 1/2-1/2 — Hamburg ch-GER U20
1995 — Abhau, Jochen vs Bressel, Teoman — 1-0 — Muenster GER
1998 — Molina, Gloria Patricia vs Mateus, Martha — 0-1 — Pensilvania COL
3.f4 — 1.0% (52 parties)
1972 — Skondras, Stavros vs Paidousis, Aristidis — 1-0 — Athens GRE
1978 — Aliprantis vs Alexopoulos, Georgios 94 — 0-1 — Athens,Greece
1981 — Kougias, Hr vs Kaloskambis, Mihail — 1/2-1/2 — Athens GRE
1986 — Fehrig, Andreas vs Michaelsen, Nils — 0-1 — Hamburg HSG/BUE
1991 — Walta, Paivi vs Paasikangas, Johanna — 0-1 — Tampere NSM