E93d - 8.Bg5 - Petrosian, Main Line (1968)

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E93d — Petrosian, Main Line (1968)
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7 8.Bg5
Les coups candidats
Ambassadeurs : Hort, Vlastimil (13x), Sveinsson, Jon Arni (11x), Baviera, Manlio (10x), Antonio, Conceicao (10x), Bianchi, Maurizio Salvatore (9x), Pollina, Paolo (8x), Zamudio, Jose (8x), Olivieri, Luigi (8x)
8…a5 — 10.5% (200 parties)
Ambassadeurs : Vann, Monica S (2x), Rutherford, Simon (2x), Huss, Andreas (2x), Beach, Thomas John (1x), Guy, Thomas (1x), Keres, Paul (1x), Berry, Jonathan (1x), Gaete Zuniga, Manuel (1x)
8…a6 — 2.3% (44 parties)
Ambassadeurs : Cantero, Ronaldo (1x), Riego, Victorio (1x), Fernandez Velasquez, Julian Felix (1x), Fernandez Allen, Secundino (1x), Barnett, Clive Dr (1x), Fishbein, Alexander (1x), Garcia Alarcon, Alvaro (1x), Rey, Enrique (1x)
8…Nc5 — 0.8% (15 parties)
Ambassadeurs : Gottlieb, Peter (1x), Collins, Richard (1x), Gelfer, Israel (1x), Pountzas, Hrisanthos (1x), Moffat, Ron (1x), Xia Yanchong (1x), Fraval, Guy (1x), Keravec, Julien (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…h6 8…a5 8…a6 8…Nc5
<1800 115 70% 17% 3% 3%
1800-2200 736 82% 13% 2% 1%
2200-2600 539 89% 9% 1% 0%
2600+ 7 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 8…h6 8…a5 8…a6 8…Nc5
1950s 32 94% — — 3%
1960s 157 95% 4% 1% 1%
1970s 101 94% 6% — —
1980s 138 88% 7% 6% —
1990s 528 85% 10% 2% 0%
2000s 528 84% 10% 3% 2%
2010s 359 78% 16% 3% 1%
2020s 64 75% 20% — 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…h6 78% 75% ▼ -3.0%
8…a5 16% 20% ▲ +3.9%
8…a6 3% 0% ▼ -2.8%
8…Nc5 1% 2% ▲ +0.7%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 7 parties
Kramnik, Vladimir — 1 partie
Kasparov, Garry — 1 partie
Botvinnik, Mikhail — 1 partie
Parties historiques
8…h6 — 84.7% (1615 parties)
1958 — Petrosian, Tigran A. vs Suetin, Alexey S — 1-0 — Riga ch-URS
1958 — Petrosian, Tigran V. vs Suetin, Alexey S — 1-0 — Riga LAT
1958 — Cuellar Gacharna, Miguel vs Ramirez, Hernan — 1-0 — Pereira
1958 — Neikirkh, Oleg vs Tal, Mikhail — 1/2-1/2 — Portoroz SLO
1958 — De Greif, Boris vs Petrosian, Tigran V. — 1/2-1/2 — Portoroz izt
8…a5 — 10.5% (200 parties)
1961 — Beach, Thomas John vs Guy, Thomas — 1/2-1/2 — Aberystwyth
1967 — Keres, Paul vs Berry, Jonathan — 0-1 — Vancouver
1968 — Honfi, Karoly vs Vadasz, Laszlo — 1-0 — HUN
1968 — Stefl, Vladimir vs Skoba, I. — 0-1 — Brno CZE
1968 — Visier Segovia, Fernando vs Olsson, Adam — 1-0 — Lugano olm
8…a6 — 2.3% (44 parties)
1960 — Cantero, Ronaldo vs Riego, Victorio — 0-1 — Asuncion PAR
1984 — Wesseln, Kai vs Poethig, Hans — 0-1 — Duitsland tt
1984 — Joebelle Palero vs Leydes, A. — 1/2-1/2 — Alkmaar open
1985 — Garcia Alarcon, Alvaro vs Rey, Enrique — 1-0 — Uruguay
1986 — Barnett, Clive Dr vs Fishbein, Alexander — 0-1 — Denver, CO USA
8…Nc5 — 0.8% (15 parties)
1959 — Gottlieb, Peter vs Collins, Richard — 0-1 — London ENG
1968 — Gelfer, Israel vs Pountzas, Hrisanthos — 1-0 — Ybbs
1999 — Moffat, Ron vs Xia Yanchong — 1-0 — Winnipeg CAN
2000 — Fraval, Guy vs Keravec, Julien — 1-0 — Finistere
2001 — Barcellona, Antonino vs Castaldo, Antonio — 0-1 — Ivrea