E03i - 6…a6 7.Nf3 b5 8.Qc2 - Open

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E03i — Open
1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 7.Nf3 b5 8.Qc2
Les coups candidats
8…Bb7 — 98.5% (639 parties)
Ambassadeurs : Meijers, Viesturs (6x), Ernst, Michael (4x), Dicen, Elis Denele (3x), Cerveny, Martin (3x), Flohr, Salo (2x), Fine, Reuben (2x), Opocensky, Karel (2x), Keres, Paul (2x)
8…c5 — 1.4% (9 parties)
Ambassadeurs : Golombek, Harry (1x), Aabel Thomas Eapen (1x), Akopov, Roman (1x), Bykhovsky, Avigdor (1x), Glowatzky, Tihomir (1x), Schroll, Ralph, Dr. (1x), Grigoryan, Meri (1x), Petrosian, Tigran A. (1x)
8…Ra7 — 0.2% (1 parties)
Ambassadeurs : Korbal, Arkadiusz (1x), Graf, Pawel (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Bb7 8…c5 8…Ra7
<1800 16 94% 6% —
1800-2200 179 99% — 1%
2200-2600 366 99% 1% —
2600+ 6 100% — —
Évolution par décennie (% des parties)
Décennie N parties 8…Bb7 8…c5 8…Ra7
1930s 3 100% — —
1940s 6 100% — —
1950s 14 93% 7% —
1960s 12 100% — —
1970s 17 100% — —
1980s 31 94% 6% —
1990s 76 99% 1% —
2000s 134 99% 1% —
2010s 256 99% 1% 0%
2020s 100 99% 1% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Bb7 99% 99% +0.2%
8…c5 1% 1% +0.2%
8…Ra7 0% 0% -0.4%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 1 partie
Parties historiques
8…Bb7 — 98.5% (639 parties)
1937 — Flohr, Salo vs Fine, Reuben — 1/2-1/2 — Kemeri LAT
1937 — Flohr, Salo vs Fine, Richard Alvaro Adrien — 1/2-1/2 — Kemeri LAT
1939 — Opocensky, Karel vs Pelikan, Jorge — 1/2-1/2 — Prague olm qual
1947 — Marini Speca, Gioia vs Aguirre Ataulluco, Patrick Gian Pierre — 1/2-1/2 — Buenos Aires ch-ARG
1947 — Karastoichev, Emil vs Naidenov, Nikola — 1-0 — Sofia BUL
8…c5 — 1.4% (9 parties)
1953 — Golombek, Harry vs Aabel Thomas Eapen — 0-1 — Hastings ch-BCF
1988 — Akopov, Roman vs Bykhovsky, Avigdor — 1/2-1/2 — USSR Tch-9 bd2
1989 — Glowatzky, Tihomir vs Schroll, Ralph, Dr. — 0-1 — corr GER/H01
1996 — Grigoryan, Meri vs Petrosian, Tigran A. — 1/2-1/2 — Erevan open
2001 — Prodileanu, Adrian vs Anitoaie, Dumitru — 1/2-1/2 — Sovata
8…Ra7 — 0.2% (1 parties)
2012 — Korbal, Arkadiusz vs Graf, Pawel — 1-0 — Police POL