D60j - 8…a6 - Orthodox, Botvinnik (1900)

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D60j — Orthodox, Botvinnik (1900)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Bd3 dxc4 8.Bxc4 a6
Les coups candidats
9.a4 — 50.0% (228 parties)
Ambassadeurs : Grivas, Efstratios (2x), Ilinsky, Vladimir (2x), Graf, Alexander (2x), Ernst, Sipke (2x), Zilber, Israel (1x), Korelov, Alexander P (1x), Isella, Facundo (1x), Casabona, Denis (1x)
9.O-O — 37.5% (171 parties)
Ambassadeurs : Harasta, Vladimir (2x), Kretov, Evgenij (2x), Makagonov, Aleksander (1x), Klovans, Janis (1x), Bobotsov, Milko G (1x), Larsen, Bent Ravn (1x), Jonkman, Meinard (1x), Van den Bosch, Johannes (1x)
9.a3 — 4.6% (21 parties)
Ambassadeurs : Diaz Garcia, Pablo (1x), Crespo Fernandez, Juan Jose (1x), Ortega Adan, Manuel (1x), Rodriguez Berral, Fernando (1x), Jovic, Nada (1x), Puljek-Salai, Zorica (1x), Becker, Robert (1x), Thielen, Dankward (1x)
9.Bd3 — 3.9% (18 parties)
Ambassadeurs : Pirnat, Saso (1x), Raspor, Gregor (1x), Reinke, Kurt (1x), Rahn, Oskar (1x), Storkebaum, Karl-Heinz (1x), Dryzek, Tadeusz (1x), Hajagos, Janos (1x), Gombos, Janos (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9.a4 9.O-O 9.a3 9.Bd3
<1800 50 40% 46% 2% 6%
1800-2200 218 45% 39% 8% 4%
2200-2600 100 78% 17% 1% 3%
2600+ 2 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 9.a4 9.O-O 9.a3 9.Bd3
1950s 4 100% — — —
1960s 7 43% 57% — —
1970s 3 100% — — —
1980s 14 71% 14% — —
1990s 76 46% 39% 7% 1%
2000s 170 45% 41% 5% 4%
2010s 157 52% 37% 4% 4%
2020s 25 60% 28% — 12%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9.a4 52% 60% ▲ +8.4%
9.O-O 37% 28% ▼ -8.9%
9.a3 4% 0% ▼ -4.5%
9.Bd3 4% 12% ▲ +7.5%
Parties historiques
9.a4 — 50.0% (228 parties)
1950 — Kluger, Gyula vs Vitarius, Bela — 1-0 — Budapest HUN
1950 — Bondarevsky, Igor vs Kottnauer, Cenek — 1/2-1/2 — Schiavno Zdroj
1951 — Puc, Stojan vs Trifunovic, Petar — 1/2-1/2 — Ljubljana
1957 — Udovcic, Mijo vs Bradvarevic, Aleksandar — 1-0 — Sombor
1964 — Zilber, Israel vs Korelov, Alexander P — 1-0 — Riga LAT
9.O-O — 37.5% (171 parties)
1963 — Makagonov, Aleksander vs Klovans, Janis — 0-1 — Moscow tt
1964 — Jonkman, Meinard vs Van den Bosch, Johannes — 1/2-1/2 — Amsterdam NED
1965 — Bobotsov, Milko G vs Larsen, Bent Ravn — 0-1 — Noordwijk
1966 — Aneke Leon vs Roux Cabral, Luis — 0-1 — Havana CUB
1988 — Perho, Aki vs Rissanen, Heikki — 1-0 — Tampere Kaleva
9.a3 — 4.6% (21 parties)
1992 — Jovic, Nada vs Puljek-Salai, Zorica — 1/2-1/2 — Pula CRO
1993 — Ortega Adan, Manuel vs Rodriguez Berral, Fernando — 0-1 — ESP
1997 — Diaz Garcia, Pablo vs Crespo Fernandez, Juan Jose — 0-1 — Asturias
1998 — Becker, Robert vs Thielen, Dankward — 1-0 — Passau
1998 — Gutierrez Coya, Julio Hernan vs Fernandez Gonzalez, Juan Alfonso — 1/2-1/2 — ?
9.Bd3 — 3.9% (18 parties)
1991 — Pirnat, Saso vs Raspor, Gregor — 1-0 — Slovenia ch
2000 — Altea, Eduardo vs Delalleau, Bruno — 0-1 — ?
2002 — Storkebaum, Karl-Heinz vs Dryzek, Tadeusz — 0-1 — Bad Woerishofen GER
2002 — Hajagos, Janos vs Gombos, Janos — 1/2-1/2 — HUN
2003 — Tughushi, Ioseb vs Rukhaia, Kartlos — 0-1 — Batumi GEO