B93d - 6…Nbd7 7.Be2 - Najdorf (1950)

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B93d —
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Nbd7 7.Be2
Eval: [+0.42]
Les coups candidats
7…g6 — 46.6% (232 parties)
Ambassadeurs : Ruck, Robert (5x), Polugaevsky, Lev (4x), Tringov, Georgi P (4x), ? (4x), Gallagher, Joseph G. (4x), Klovans, Janis (3x), Matanovic, Aleksandar (3x), Leko, Peter (3x)
7…e5 — 29.3% (146 parties)
Ambassadeurs : Quinteros, Miguel A. (5x), Polgar, Judit (5x), ? (5x), Gelfand, Boris (5x), Nunn, John D M (4x), Van der Wiel, John T.H. (4x), Pliester, Leon (4x), Vogt, Lothar (3x)
7…e6 — 12.4% (62 parties)
Ambassadeurs : Arriaran Perez, Martin (2x), Nikitin, Aleksander S (1x), Nei, Iivo (1x), Vasconcelos, Fernando (1x), Engels, Ludwig (1x), Castaldi, Vincenzo (1x), Bhend, Edwin (1x), Penrose, Jonathon (1x)
7…b5 — 6.0% (30 parties)
Ambassadeurs : Engel, Dr.Klaus Eberhard (2x), Barthe Paoli, Louis (1x), Lob, Chris (1x), Pogats, Jozsef Jr. (1x), Reicher, Emanoil-George (1x), Bykhovsky, Anatoly A (1x), Lepeshkin, Vladimir (1x), Gyving, Robert (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…g6 7…e5 7…e6 7…b5
<1800 5 — 40% 40% 20%
1800-2200 83 47% 14% 23% 11%
2200-2600 264 52% 30% 8% 4%
2600+ 22 55% 41% — —
Évolution par décennie (% des parties)
Décennie N parties 7…g6 7…e5 7…e6 7…b5
1950s 9 11% 11% 44% 33%
1960s 23 83% — 9% 4%
1970s 58 21% 53% 9% 2%
1980s 56 36% 48% 9% 4%
1990s 138 45% 37% 9% 7%
2000s 115 56% 25% 10% 3%
2010s 89 57% 8% 22% 9%
2020s 10 30% — 20% 20%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…g6 57% 30% ▼ -27.3%
7…e5 8% 0% ▼ -7.9%
7…e6 22% 20% ▼ -2.5%
7…b5 9% 20% ▲ +11.0%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 3 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 2 parties
Karpov, Aleksandr — 1 partie
Karpov, Anatoly — 1 partie
Parties historiques
7…g6 — 46.6% (232 parties)
1950 — Nezhmetdinov, Rashid vs Soloviev, Vladimir A — 1/2-1/2 — URS-ch sf Gorky
1963 — Trapl, Jindrich vs Alster, Ladislav — 0-1 — Prague ch-CSR
1964 — Siveri, Armando vs Bilek, Istvan — 0-1 — Reggio Emilia ITA
1964 — Klovans, Janis vs Polugaevsky, Lev — 1/2-1/2 — Moscow RUS
1964 — Bykhovsky, Anatoly A vs Nikitin, Aleksander S — 1-0 — Moscow RUS
7…e5 — 29.3% (146 parties)
1958 — Van Den Broeck, Hans vs Beyen, Roland — 0-1 — Blankenberge
1970 — Trapl, Jindrich vs Kubicek, Antonin — 1-0 — Harrachov
1972 — Beliavsky, Alexander G vs Savon, Vladimir A — 0-1 — Sukhumi GEO
1973 — Tal, Mikhail vs Quinteros, Miguel A. — 1-0 — Leningrad RUS
1973 — Adorjan, Andras vs Tal, Mikhail — 1/2-1/2 — Hastings ENG
7…e6 — 12.4% (62 parties)
1951 — Niephaus, Walter vs Heinicke, Herbert — 1-0 — Augsburg GER
1952 — Nikitin, Aleksander S vs Nei, Iivo — 1-0 — Riga LAT
1952 — Vasconcelos, Fernando vs Engels, Ludwig — 0-1 — Rio de Janeiro BRA
1954 — Castaldi, Vincenzo vs Bhend, Edwin — 0-1 — Munich GER
1960 — Penrose, Jonathon vs Humerez Estrada, Cidar — 1-0 — Leipzig GER
7…b5 — 6.0% (30 parties)
1951 — Barthe Paoli, Louis vs Lob, Chris — 1-0 — Venice ITA
1951 — Pogats, Jozsef Jr. vs Reicher, Emanoil-George — 1/2-1/2 — Bucharest ROU
1959 — Gyving, Robert vs Osbun, Erik — 0-1 — Santa Rosa Chess Club
1963 — Bykhovsky, Anatoly A vs Lepeshkin, Vladimir — 1-0 — Moscow RUS
1976 — Friedgood, David vs De Villiers, Charles — 1/2-1/2 — Durban