C92g - 9…Nd7 10.d4 Bf6 11.a4 - Closed Karpov Variation

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C92g — Closed Karpov Variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Nd7 10.d4 Bf6 11.a4
Eval: [+0.66]
Les coups candidats
11…Bb7 — 73.4% (768 parties)
Ambassadeurs : Blagojevic, Dragisa (16x), Sagfjara, Magne (14x), Miguel Tomas Pedro Jose (13x), Barkhagen, Jonas (13x), Asturiano Molina, Javier (12x), Villani, Cristian (11x), Jabot, Daniel (11x), Stobbe, Arthur J (10x)
11…Rb8 — 13.0% (136 parties)
Ambassadeurs : Bolduc, Steve (7x), Asturiano Molina, Javier (4x), Mahdy, Khaled (4x), Zochowski, Kacper (4x), Unzicker, Wolfgang (3x), Milos, Gilberto (3x), Agdestein, Simen (3x), Short, Nigel D (3x)
11…Na5 — 11.6% (121 parties)
Ambassadeurs : Nikolichev, Aleksandr A (10x), Tal, Mikhail (7x), Kirchshofer, Ernst (7x), Goedhart William (7x), Grillon, Jean Marie (7x), Geller, Efim P. (5x), Pinter, Jozsef (5x), Sarosy, Zoltan L (4x)
11…bxa4 — 0.8% (8 parties)
Ambassadeurs : Jabot, Daniel (2x), Luckis, Marcos (1x), Najdorf, Miguel (1x), Ravinsky, Grigory (1x), Ragozin, Viacheslav (1x), Bellin, Robert (1x), Phillips, Alan (1x), Schapiro, Elsie (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 11…Bb7 11…Rb8 11…Na5 11…bxa4
<1800 4 75% 25% — —
1800-2200 141 78% 17% 5% —
2200-2600 516 83% 11% 6% —
2600+ 67 73% 18% 9% —
Évolution par décennie (% des parties)
Décennie N parties 11…Bb7 11…Rb8 11…Na5 11…bxa4
1940s 16 31% 25% 38% 6%
1950s 29 52% 41% 3% 3%
1960s 45 38% 7% 53% —
1970s 30 33% 10% 53% 3%
1980s 53 49% 25% 25% 2%
1990s 414 76% 10% 11% 1%
2000s 284 86% 12% 2% —
2010s 151 79% 14% 6% —
2020s 24 67% 29% 4% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
11…Bb7 79% 67% ▼ -12.8%
11…Rb8 14% 29% ▲ +15.3%
11…Na5 6% 4% ▼ -1.8%
11…bxa4 0% 0% +0.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Karpov, Anatoly — 6 parties
Kasparov, Garry — 4 parties
Smyslov, Vladimir — 3 parties
Karpov, Aleksandr — 2 parties
Anand, Viswanathan — 2 parties
Hou, Yifan — 2 parties
Botvinnik, Mikhail — 1 partie
Parties historiques
11…Bb7 — 73.4% (768 parties)
1946 — Ravinsky, Grigory vs Lilienthal, Andor — 0-1 — Moscow RUS
1947 — Zagorovsky, Vladimir vs Zhukhovitsky, Samuel — 1/2-1/2 — Leningrad RUS
1947 — Kopylov, Nikita vs Lisitsin, Gleb — 1/2-1/2 — Leningrad RUS
1948 — Schmid, Lothar vs Ahues, Carl — 1-0 — Celle
1949 — Enevoldsen, Jens vs Kuppe, Wilhelm — 0-1 — Oldenburg GER
11…Rb8 — 13.0% (136 parties)
1946 — Skold, Kristian vs Stoltz, Gosta — 0-1 — Stockholm SWE
1948 — De Souza Mendes, Joao vs Cruz, Walter — 1-0 — Rio de Janeiro BRA
1949 — Boleslavsky, Isaac vs Kasparian, Genrikh — 1/2-1/2 — Leningrad RUS
1949 — Poliak, Abram vs Kamishov, Mikhail P — 1-0 — Moscow RUS
1953 — Rabar, Braslav vs Nikolac, Juraj — 1/2-1/2 — Zagreb CRO
11…Na5 — 11.6% (121 parties)
1945 — Lilienthal, Andor vs Ragozin, Viacheslav — 1-0 — Moskou ch-URS
1946 — Ragozin, Viacheslav vs Botvinnik, Mikhail — 0-1 — Moscow RUS
1946 — Pinkus, Albert vs Ragozin, Viacheslav — 0-1 — Moscow USSR-USA
1946 — Vukovic, Sava vs Bozic, Aleksandar — 1-0 — Zagreb CRO
1947 — Potucek, Ludovit vs Henneberke, Frans — 1/2-1/2 — NED-CSR The Hague NED
11…bxa4 — 0.8% (8 parties)
1948 — Luckis, Marcos vs Najdorf, Miguel — 1/2-1/2 — Mar del Plata ARG
1955 — Ravinsky, Grigory vs Ragozin, Viacheslav — 1/2-1/2 — Moscow RUS
1973 — Bellin, Robert vs Phillips, Alan — 1-0 — Islington ENG
1980 — Schapiro, Elsie vs Klompus, G. — 0-1 — corr USSR
1990 — Pane, Andrea vs Benassi, Lorenzo — 1-0 — corr Italy