B92b - 6…Nbd7

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B92b —
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Nbd7
Eval: [+0.55]
Les coups candidats
7.O-O — 42.6% (447 parties)
Ambassadeurs : Poloch, Petr (6x), ? (5x), Ilincic, Zlatko (5x), Balazec, Ludovit (5x), Bodnaruk, Anastasia (5x), Gordievsky, Dmitry (4x), Zakhartsov, Vladimir (4x), Khismatullin, Denis (4x)
7.Be3 — 25.4% (266 parties)
Ambassadeurs : Quinteros, Miguel A. (8x), Almarza Mato, Carlos (4x), Khismatullin, Denis (4x), Ljubojevic, Ljubomir (3x), Kavalek, Lubomir (3x), Morovic Fernandez, Ivan (3x), Dolmatov, Sergey (3x), Alsayed, Mohammed (3x)
Ambassadeurs : Quinteros, Miguel A. (6x), Klovans, Janis (4x), Polugaevsky, Lev (4x), Nunn, John D M (4x), Tringov, Georgi P (4x), Bykhovsky, Anatoly A (3x), Matanovic, Aleksandar (3x), Liberzon, Vladimir M (3x)
7.a4 — 5.0% (52 parties)
Ambassadeurs : Matanovic, Aleksandar (2x), Ruck, Robert (2x), Parligras, Mircea-Emilian (2x), Bykhovsky, Anatoly A (1x), Simagin, Vladimir (1x), Seslija, Dragan (1x), Ligterink, Gert (1x), Barua, Dibyendu (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7.O-O 7.Be3 7.f4 7.a4
<1800 29 24% 52% 7% 7%
1800-2200 256 47% 29% 13% 4%
2200-2600 487 42% 22% 24% 6%
2600+ 19 37% 21% 26% 11%
Évolution par décennie (% des parties)
Décennie N parties 7.O-O 7.Be3 7.f4 7.a4
1920s 1 100% — — —
1940s 3 100% — — —
1950s 2 50% — 50% —
1960s 51 35% 10% 39% 4%
1970s 104 25% 29% 37% 6%
1980s 59 47% 14% 25% 7%
1990s 148 26% 32% 24% 6%
2000s 241 50% 20% 18% 5%
2010s 403 49% 28% 12% 4%
2020s 37 32% 35% 16% 8%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7.O-O 49% 32% ▼ -16.9%
7.Be3 28% 35% ▲ +6.8%
7.f4 12% 16% ▲ +4.3%
7.a4 4% 8% ▲ +3.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Karpov, Aleksandr — 2 parties
Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Gukesh D — 1 partie
Parties historiques
7.O-O — 42.6% (447 parties)
1926 — Chinthamalla Stalin vs Jeschow — 1-0 — ?
1940 — Bluemich, Max vs Bogoljubow, Efim — 0-1 — Krakow/Krynica/Warsaw
1945 — Molnar, Ferenc vs Schernesky — 1-0 — France
1946 — Yerhoff, Frank vs Kupchik, Abraham — 0-1 — Pittsburgh op
1957 — Marciniak, Adam vs Matkowski, W. — 0-1 — Poland
7.Be3 — 25.4% (266 parties)
1962 — Matanovic, Anto vs Hernandez Stein, Dario Eduardo — 1-0 — Lvov UKR
1963 — Lein, Anatoly vs Balitinov M — 0-1 — Russia
1968 — Cseshkovsky, Vitaly vs Polugaevsky, Lev — 1/2-1/2 — Alma Ata ch-URS
1968 — Cseshkovsky, Vitaly vs Liberzon, Vladimir M — 1-0 — Alma Ata ch-URS
1969 — Bykhovsky, Avigdor vs Yudovich, Mikhail M — 1-0 — Olympiad Moscow (trade unions
7.f4 — 19.7% (207 parties)
1959 — Gyving, Robert vs Osbun, Erik — 0-1 — Santa Rosa Chess Club
1963 — Bykhovsky, Anatoly A vs Lepeshkin, Vladimir — 1-0 — Moscow RUS
1964 — Siveri, Armando vs Bilek, Istvan — 0-1 — Reggio Emilia ITA
1964 — Holzmann Licurgo vs Mello, Jose Benicio — 1-0 — Brasilia BRA
1964 — Klovans, Janis vs Polugaevsky, Lev — 1/2-1/2 — Moscow RUS
7.a4 — 5.0% (52 parties)
1962 — Bykhovsky, Anatoly A vs Simagin, Vladimir — 1/2-1/2 — Moscow RUS
1967 — Seslija, Dragan vs Ligterink, Gert — 1-0 — Groningen NED
1972 — Huguet, Bernard vs Tatai, Stefano — 1/2-1/2 — Las Palmas ESP
1973 — Pilnik, Herman vs Rubinetti, Jorge — 1/2-1/2 — Buenos Aires ARG
1974 — Nestler, Vincenzo vs Albano, Marco — 0-1 — Milan ITA