E60h - 3.Nf3 Bg7 4.b3 - b3 System (1957)

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E60h — b3 System (1957)
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b3
Les coups candidats
4…O-O — 46.2% (48 parties)
Ambassadeurs : Kuznetsov, Dmitry (2x), Marchand, Erich W (1x), Brandts Paul (1x), Arias-Romero, Sullyvan (1x), Berliner, Hans (1x), Tomovic, Vasilje (1x), Velimirovic, Dragoljub (1x), Gudmundsson, Arinbjorn (1x)
4…c5 — 30.8% (32 parties)
Ambassadeurs : Vea, Rannveig Blikra (2x), Scafarelli, Francesco (1x), Roessel, Florian (1x), Gonzalez, Gerardo (1x), Serra Olives, Tomas (1x), Calvello, O. (1x), Palmiotto, Fiorentino (1x), Fernandes, Guilherme Barbosa (1x)
4…d6 — 13.5% (14 parties)
Ambassadeurs : Hartlaub, Marianne (1x), Freundorfer, Claudia (1x), Petrescu, Lucian (1x), Balcerak, Jakob (1x), Yakich, B. (1x), Bachler, Kevin (1x), Teichmann, Martin (1x), Nuske, Harald (1x)
4…d5 — 5.8% (6 parties)
Ambassadeurs : Kozomara, Vlado (1x), Ivkov, Borislav (1x), Doescher, Thorsten (1x), Wehrmann, Henning (1x), Vladimirov, Ivan (1x), Borsuk, Pavel (1x), Iliushkin, Evgeny (1x), Dobrynin, Ivan (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…O-O 4…c5 4…d6 4…d5
<1800 14 50% 36% 7% —
1800-2200 51 49% 22% 16% 8%
2200-2600 12 50% 50% — —
Évolution par décennie (% des parties)
Décennie N parties 4…O-O 4…c5 4…d6 4…d5
1950s 4 50% 25% — 25%
1960s 3 67% 33% — —
1980s 3 33% 67% — —
1990s 13 31% 38% 23% 8%
2000s 33 45% 33% 12% 3%
2010s 40 48% 28% 18% 8%
2020s 8 62% 12% — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…O-O 48% 62% ▲ +15.0%
4…c5 28% 12% ▼ -15.0%
4…d6 18% 0% ▼ -17.5%
4…d5 8% 0% ▼ -7.5%
Parties historiques
4…O-O — 46.2% (48 parties)
1956 — Arias-Romero, Sullyvan vs Berliner, Hans — 0-1 — ?
1957 — Marchand, Erich W vs Brandts Paul — 1-0 — Cleveland, OH USA
1963 — Tomovic, Vasilje vs Velimirovic, Dragoljub — 0-1 — Belgrade SRB
1964 — Gudmundsson, Arinbjorn vs Olafsson, Fridrik — 0-1 — Reykjavik ISL
1988 — Ambelang, Harald vs Kistner, Klaus — 1-0 — Stetten
4…c5 — 30.8% (32 parties)
1956 — Scafarelli, Francesco vs Roessel, Florian — 1/2-1/2 — Beverwijk NED
1960 — Gonzalez, Gerardo vs Serra Olives, Tomas — 0-1 — Mar del Plata ARG
1984 — Fernandes, Guilherme Barbosa vs Aahan Soares — 0-1 — ?
1986 — Calvello, O. vs Palmiotto, Fiorentino — 0-1 — Italy Master ch
1993 — Seepe, Udo vs von Hartlieb, Justus — 1/2-1/2 — Muenster GER
4…d6 — 13.5% (14 parties)
1994 — Petrescu, Lucian vs Balcerak, Jakob — 0-1 — Wolfste ch-RLPF U15
1994 — Yakich, B. vs Bachler, Kevin — 1-0 — US Open
1995 — Hartlaub, Marianne vs Freundorfer, Claudia — 1-0 — Wuerzburg
2002 — Light, H vs Antonio Xavier Rui John Alemao E Simoes — 1/2-1/2 — Cape Town RSA
2002 — Nguyen, Thi Hanh vs Luong, Minh Hue — 1/2-1/2 — Vietnam
4…d5 — 5.8% (6 parties)
1957 — Kozomara, Vlado vs Ivkov, Borislav — 0-1 — Sombor
1997 — Doescher, Thorsten vs Wehrmann, Henning — 1-0 — GER
2001 — Vladimirov, Ivan vs Borsuk, Pavel — 1-0 — Serpukhov
2017 — Massaguer Soles, Francesc vs Alvarez Serra, Jordi — 0-1 — Girona
2018 — Garcia Benitez, Omar vs Hernandez Herrera, Hanoy Fredy — 1-0 — Mayabeque