B67n - 9.f4 b5 10.Bxf6 gxf6 11.f5 - Richter-Rauzer [+0.34]

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B67n — Richter-Rauzer
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 b5 10.Bxf6 gxf6 11.f5
Eval: [+0.34]
Les coups candidats
11…Nxd4 — 55.9% (176 parties)
Ambassadeurs : Kozul, Zdenko (10x), Bertok, Mario Jr. (8x), Wosch, Arkadiusz (5x), Aldea, Laurentiu-Ioan (4x), Tal, Mikhail (3x), Schneider, Lars-Ake (3x), Roberts, Anthony J (3x), Westerinen, Heikki M.J. (2x)
11…Qb6 — 29.2% (92 parties)
Ambassadeurs : Zalys, Ignas (7x), Dvoirys, Semen I. (2x), Mednis, Edmar J (2x), Giorgadze, Tamaz (2x), Shcherbakov, Ruslan (2x), Souza Neves, Andrey M. (2x), Nevostrujev, Vladimir (2x), Parma, Bruno (1x)
11…h5 — 11.1% (35 parties)
Ambassadeurs : Barron, Irina (2x), Hrudka E (1x), Chjutt, WP. (1x), Matanovic, Aleksandar (1x), Heinicke, Herbert (1x), Seibold, Hubert, Dr. (1x), Fauth, Dietmar, Dr. (1x), Prandstetter, Eduard (1x)
11…b4 — 2.5% (8 parties)
Ambassadeurs : Berza, Stefan (1x), Vayser, Vladimir Abramovich (1x), Darazs, Zoltan (1x), Mester, Attila (1x), Baghdasaryan, Vahe (1x), Davtyan, David Arm. (1x), Leite, Thales Ferreira (1x), Souza Neves, Andrey Marcelo (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11…Nxd4 11…Qb6 11…h5 11…b4
<1800 3 33% 33% — 33%
1800-2200 68 47% 29% 15% 4%
2200-2600 184 56% 30% 11% 2%
2600+ 4 50% 25% 25% —
Évolution par décennie (% des parties)
Décennie N parties 11…Nxd4 11…Qb6 11…h5 11…b4
1950s 8 62% 12% 25% —
1960s 16 69% 31% — —
1970s 35 66% 34% — —
1980s 33 73% 21% 6% —
1990s 50 52% 30% 14% —
2000s 79 53% 30% 15% 1%
2010s 68 47% 31% 13% 6%
2020s 26 50% 27% 12% 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11…Nxd4 47% 50% ▲ +2.9%
11…Qb6 31% 27% ▼ -4.0%
11…h5 13% 12% ▼ -1.7%
11…b4 6% 12% ▲ +5.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Parties historiques
11…Nxd4 — 55.9% (176 parties)
1956 — Sakharov, Yuri G. vs Koblencs, Alexander — 1/2-1/2 — URS-ch sf Tbilisi GEO
1956 — Byvshev, Vasily vs Zilber, Israel — 1-0 — Leningrad RUS
1958 — Tal, Mikhail vs Malich, Burkhard, Dr. — 1-0 — Varna BUL
1959 — ? vs Bertok, Mario Jr. — 0-1 — JUG-ch Kragujevac YUG
1959 — Nedeljkovic Jovanovic, Verica vs Bykova, Elizaveta — 1/2-1/2 — Kiev UKR
11…Qb6 — 29.2% (92 parties)
1954 — Zurakhov, Vladlen Y vs Byvshev, Vasily — 1/2-1/2 — URS-ch sf Leningrad RUS
1961 — Schmidt, Wlodzimierz vs Rubinetti, Jorge — 1/2-1/2 — The Hague NED
1965 — Westerinen, Heikki M.J. vs Kiviaho, Bob — 1-0 — Finland
1965 — Zalys, Ignas vs Huckin, W — 1-0 — Chess Review
1965 — Van den Berg, Ad vs Shipov, Boris — 0-1 — Sinaia stud ol prel
11…h5 — 11.1% (35 parties)
1955 — Matanovic, Aleksandar vs Heinicke, Herbert — 1-0 — Hamburg GER
1958 — Hrudka E vs Chjutt, WP. — 1-0 — corr USSR-GER
1987 — Seibold, Hubert, Dr. vs Fauth, Dietmar, Dr. — 1-0 — GER
1988 — Prandstetter, Eduard vs Kozul, Zdenko — 1-0 — Tbilisi GEO
1991 — Lukasiewicz, Anna vs Zimmersmann, Rita — 0-1 — Budapest HUN
11…b4 — 2.5% (8 parties)
2004 — Berza, Stefan vs Vayser, Vladimir Abramovich — 1-0 — ICCF Email
2013 — Darazs, Zoltan vs Mester, Attila — 1-0 — Budapest HUN
2016 — Leite, Thales Ferreira vs Souza Neves, Andrey Marcelo — 0-1 — Manaus
2016 — Sergeeva, Natalia vs Kuznetsov, Felix — 0-1 — St Petersburg RUS
2018 — Baghdasaryan, Vahe vs Davtyan, David Arm. — 1-0 — Erevan ARM