B51m - 3…Nc6 4.O-O [+0.33]

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B51m —
1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O
Eval: [+0.33]
Les coups candidats
Ambassadeurs : Tiviakov, Sergei (68x), Da Silva Filho, Alcindo Luz Bastos (54x), Grivas, Efstratios (34x), Kharlov, Andrei (33x), Movsesian, Sergei (31x), ? (31x), Atakisi, Umut (29x), Hracek, Zbynek (26x)
4…Bg4 — 4.5% (583 parties)
Ambassadeurs : Tiviakov, Sergei (9x), Klimentov, Roman (6x), Heberla, Bartlomiej (5x), Sedina, Elena (5x), Larsen, Benjamin Holsko (4x), Perenyi, Bela (4x), Hartikainen, Markku (4x), Kohout, Josef (4x)
4…Nf6 — 4.2% (550 parties)
Ambassadeurs : Martin Gonzalez, Angel (4x), Menzi, Nezihe Ezgi (4x), Doubleday, William G. (3x), Cukrowski, Filip (3x), Bruno, Ricardo (3x), Ellena, Bill (2x), Kaiszauri, Konstanty (2x), Franzen, Jozef (2x)
4…a6 — 3.2% (421 parties)
Ambassadeurs : Lombardy, William J (4x), Goldenberg, Richard (3x), Sokolsky, Alexey (2x), Kotov Lundqvist, Alex (2x), O'Kelly, Albéric de Galway (2x), Najdorf, Miguel (2x), O'Kelly de Galway, Alberic (2x), Barendregt, Johan (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Bd7 4…Bg4 4…Nf6 4…a6
<1800 267 60% 5% 11% 8%
1800-2200 3562 75% 5% 7% 4%
2200-2600 7170 90% 4% 2% 1%
2600+ 492 97% 2% 1% —
Évolution par décennie (% des parties)
Décennie N parties 4…Bd7 4…Bg4 4…Nf6 4…a6
1940s 12 17% — 25% 42%
1950s 77 29% 26% 10% 22%
1960s 58 45% 19% — 22%
1970s 274 64% 16% 4% 9%
1980s 441 77% 6% 6% 5%
1990s 1859 76% 7% 4% 5%
2000s 3836 82% 4% 5% 3%
2010s 4944 86% 3% 4% 2%
2020s 1536 89% 2% 3% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Bd7 86% 89% ▲ +3.4%
4…Bg4 3% 2% ▼ -0.8%
4…Nf6 4% 3% ▼ -0.7%
4…a6 2% 1% ▼ -0.7%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Ju, Wenjun — 9 parties
Gukesh D — 8 parties
Tal, Mikhail — 6 parties
Kasparov, Garry — 5 parties
Karpov, Anatoly — 3 parties
Hou, Yifan — 3 parties
Carlsen, Magnus — 3 parties
Botvinnik, Mikhail — 2 parties
Smyslov, Vladimir — 2 parties
Kramnik, Vladimir — 2 parties
Parties historiques
4…Bd7 — 82.3% (10734 parties)
1948 — Kholmov, Ratmir D vs Ragozin, Viacheslav — 1-0 — Moskou ch-URS
1948 — Canal, Esteban vs Polzer, Hans — 1-0 — Bad Gastein
1950 — Sokolsky, Alexey vs Geller, Efim P. — 1-0 — Kiev UKR
1951 — Gligoric, Svetozar vs Nedeljkovic, Srecko M — 1/2-1/2 — Ljubljana
1951 — Trifunovic, Petar vs Nedeljkovic, Srecko M — 1/2-1/2 — Ljubljana
4…Bg4 — 4.5% (583 parties)
1950 — Milic, Borislav vs Pirc, Vasja — 1/2-1/2 — Bled SLO
1950 — Sokolsky, Alexey vs Aronin, Lev — 0-1 — Moskou ch-URS
1950 — Boleslavsky, Isaac vs Aronin, Lev — 0-1 — Moskou ch-URS
1950 — Aronin, Lev vs Soloviev, Vladimir A — 0-1 — Gorky
1951 — Shagalovich, Abo vs Kondratiev, Aleksandr — 1-0 — Leningrad RUS
4…Nf6 — 4.2% (550 parties)
1947 — Gereben, Erno vs Mueller, Hans — 1/2-1/2 — Vienna AUT
1949 — Liublinsky, Victor vs Taimanov, Mark — 0-1 — Moskou ch-URS
1949 — Aronin, Lev vs Goldberg, Grigory A — 1/2-1/2 — Moskou ch-URS
1950 — Abramov, Lev vs Lisitsin, Georgy — 0-1 — URS-ch sf Leningard
1950 — O'Kelly, Albéric de Galway vs Najdorf, Miguel — 0-1 — Amsterdam NED
4…a6 — 3.2% (421 parties)
1947 — Sokolsky, Alexey vs Botvinnik, Mikhail — 0-1 — Moscow RUS
1948 — O'Kelly, Albéric de Galway vs Najdorf, Miguel — 1-0 — Mar del Plata ARG
1948 — O'Kelly de Galway, Alberic vs Najdorf, Miguel — 1-0 — 11
1948 — Aronin, Lev vs Kotov Lundqvist, Alex — 0-1 — Moskou ch-URS
1949 — Sokolsky, Alexey vs Kotov Lundqvist, Alex — 1-0 — Moskou ch-URS