B98b - 8.Qf3 [+0.58]

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B98b —
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3
Eval: [+0.58]
Les coups candidats
Ambassadeurs : Guizar, Clemente Dr (59x), ? (44x), Browne, Walter Shawn (35x), De Firmian, Nick (29x), Rózanski, Robert (29x), Maeder, Karl-Heinz (25x), Kappes, Dieter (23x), Kover, Warner Bruce Prof Dr (21x)
Ambassadeurs : Kover, Warner Bruce Prof Dr (25x), Spasov, Spas (24x), Blackstone, John (20x), Browne, Walter Shawn (19x), Bednarski, Jacek (18x), ? (16x), Gruzmann, Boris (10x), Matulovic, Milan (9x)
8…Nbd7 — 7.3% (1419 parties)
Ambassadeurs : Browne, Walter Shawn (10x), Janisch, Manfred (7x), Munoz Obando, Laura Alexandra (4x), Maj, Pawel (4x), Angles d'Auriac, Bernard (3x), Fischer, Robert J (3x), Moody, David W (3x), Wall, Bill (3x)
Ambassadeurs : Chabradze, Boris (11x), Danner, Georg (10x), De Ruiter, Tom (8x), Carlson, Curtis (7x), Adams, Mark (7x), Schall, Alain (5x), Barnsley, Anthony R (5x), Van Mechelen, Jan (5x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Qc7 8…h6 8…Nbd7 8…Qa5
<1800 745 59% 10% 13% 1%
1800-2200 7350 72% 10% 9% 2%
2200-2600 5419 77% 13% 5% 3%
2600+ 88 78% 14% 3% 3%
Évolution par décennie (% des parties)
Décennie N parties 8…Qc7 8…h6 8…Nbd7 8…Qa5
1930s 1 100% — — —
1950s 132 64% 21% 7% —
1960s 568 63% 27% 5% —
1970s 1267 79% 15% 3% 1%
1980s 1442 83% 9% 4% 1%
1990s 3543 78% 6% 6% 5%
2000s 5724 74% 9% 7% 2%
2010s 5367 69% 13% 10% 1%
2020s 1468 78% 9% 9% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Qc7 69% 78% ▲ +9.3%
8…h6 13% 9% ▼ -3.9%
8…Nbd7 10% 9% ▼ -1.7%
8…Qa5 1% 0% -0.3%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Ju, Wenjun — 6 parties
Anand, Viswanathan — 4 parties
Euwe, Max — 1 partie
Smyslov, Vladimir — 1 partie
Carlsen, Magnus — 1 partie
Hou, Yifan — 1 partie
Parties historiques
8…Qc7 — 74.2% (14487 parties)
1938 — Kunerth, Werner E vs Pope, John — 1-0 — Krakow POL
1955 — Ravn, Palle vs Scherbakoff, Georges — 1-0 — Paris FRA
1955 — Nikitin, Aleksander S vs Szapiro, Grzegorz — 1/2-1/2 — Lodz POL
1955 — Franz Alpizar, Tomas vs Gatto, Claudio — 1/2-1/2 — EU/M/481
1955 — Szollosi, Laszlo vs Borloy, Karoly — 1-0 — Voros Lobogo
8…h6 — 10.7% (2094 parties)
1955 — Geller, Efim P. vs Panno, Oscar — 1-0 — Goteborg SWE
1955 — Spassky, Boris V. vs Pilnik, Herman — 1-0 — Goteborg SWE
1955 — Keres, Paul vs Najdorf, Miguel — 1-0 — Goteborg SWE
1955 — Keres, Paul Petrovich vs Najdorf, Miguel — 1-0 — Goteborg SWE
1955 — Olafsson, Fridrik vs Pilnik, Herman — 1-0 — Reykjavik ISL
8…Nbd7 — 7.3% (1419 parties)
1956 — kalatozishvili, Giorgi vs Blagidze, Alexander — 1-0 — Georgia ch
1957 — Bernstein, Sidney vs Fischer, Raphael — 0-1 — New York, NY USA
1958 — Cuellar Alfredo vs Humerez Estrada, Cidar — 0-1 — Bogota COL
1958 — Safvat, Younus vs Ojanen, Kaarle S — 0-1 — Munchen olm
1959 — Keres, Paul Petrovich vs Benko, Pal — 1-0 — Bled/Zagreb/Belgrade
8…Qa5 — 1.9% (373 parties)
1971 — Potter, Brian vs Krzyzowski, Ernest — 1-0 — Vancouver
1974 — Rosino, Antonio vs Walther, Edgar — 0-1 — Switzerland
1976 — Thomason, Alan vs Carlson Maragia — 1/2-1/2 — cr.
1978 — Gieselman vs Carlson Maragia — 0-1 — cr.
1979 — Whitehead, Paul vs Carlson, Curtis — 1-0 — Berkeley