D41n - 5…Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 O-O 11.Bc4 Nc6 12.O-O - Semi-Tarrasch Main Line [+0.51]

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D41n — Semi-Tarrasch Main Line
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 cxd4 8.cxd4 Bb4+ 9.Bd2 Bxd2+ 10.Qxd2 O-O 11.Bc4 Nc6 12.O-O
Eval: [+0.51]
Les coups candidats
Ambassadeurs : Golod, Vitali (14x), Daurelle, Herve (7x), Andrijevic, Milan (7x), Martello, Juan (7x), Taylor, Gordon (6x), Gonschior, Manfred (6x), Beckett, Phillip J (6x), Polugaevsky, Lev (5x)
12…Na5 — 6.6% (62 parties)
Ambassadeurs : Uhoda, Philippe (2x), Alekhine, Alexander (1x), Roedl, Ludwig (1x), Kotlerman (1x), Kirilov, Valentins (1x), Palme, Rudolf (1x), Canal, Esteban (1x), Fuderer, Andrija (1x)
12…Qd6 — 6.6% (62 parties)
Ambassadeurs : Kelecevic, Nedeljko (4x), Kuligowski, Adam (2x), Adorjan, Andras (2x), Portisch, Lajos (2x), Polugaevsky, Lev (2x), Pyhala, Antti (2x), Korchnoi, Viktor (2x), Browne, Walter Shawn (2x)
12…Qa5 — 1.8% (17 parties)
Ambassadeurs : Letelier Martner, Rene (2x), Bulgarini Torre, Marco (2x), Castillo Larenas, Mariano (1x), Mortlock, A. (1x), Watson, GH. (1x), Maher, Vincent (1x), Hort, Vlastimil (1x), Platonov, Igor V (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 12…b6 12…Na5 12…Qd6 12…Qa5
<1800 10 60% 30% — 10%
1800-2200 203 74% 12% 5% 2%
2200-2600 446 81% 5% 8% 1%
2600+ 41 78% 2% 10% —
Évolution par décennie (% des parties)
Décennie N parties 12…b6 12…Na5 12…Qd6 12…Qa5
1910s 1 — — — —
1920s 1 100% — — —
1930s 15 67% 13% — —
1940s 12 67% 8% — 17%
1950s 19 79% 16% — 5%
1960s 24 96% 4% — —
1970s 46 67% — 24% 2%
1980s 79 75% 3% 16% —
1990s 163 81% 1% 9% 1%
2000s 291 80% 6% 4% 2%
2010s 238 77% 13% 5% 1%
2020s 45 78% 7% 4% 4%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
12…b6 77% 78% +0.5%
12…Na5 13% 7% ▼ -6.8%
12…Qd6 5% 4% -0.2%
12…Qa5 1% 4% ▲ +3.2%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 5 parties
Alekhine, Alexander — 4 parties
Karpov, Anatoly — 3 parties
Karpov, Aleksandr — 2 parties
Euwe, Max — 1 partie
Parties historiques
12…b6 — 78.3% (731 parties)
1924 — Teichmann, Richard vs Rubinstein, Akiba — 1/2-1/2 — Berlin GER
1935 — Ribera Arnal, Angel vs Cherta, Pedro — 0-1 — Barcelona ESP
1937 — Reshevsky, Samuel vs Fine, Richard Alvaro Adrien — 1/2-1/2 — Hastings ENG
1937 — Fogelevich, Fedor Lvovich vs Yudovich, Mikhail M — 0-1 — Moscow RUS
1937 — Alekhine, Alexander vs Euwe, Max — 1/2-1/2 — Den Haag wch-m
12…Na5 — 6.6% (62 parties)
1936 — Alekhine, Alexander vs Roedl, Ludwig — 1/2-1/2 — Dresden GER
1939 — Kotlerman vs Kirilov, Valentins — 1/2-1/2 — Dniepropetrovsk ch-U
1948 — Palme, Rudolf vs Canal, Esteban — 0-1 — Bad Gastein
1953 — Fuderer, Andrija vs Mueller, Hans — 1/2-1/2 — Saarbruecken
1954 — Corral, Hector vs Bernstein, Olivia — 1/2-1/2 — Montevideo URU
12…Qd6 — 6.6% (62 parties)
1973 — Portisch, Lajos vs Polugaevsky, Lev — 1/2-1/2 — Portoroz SLO
1973 — Portisch, Lajos vs Polugaevsky, Lev — 1/2-1/2 — Portoroz SLO
1975 — Antich Gil, Arix vs Collett, Jason S — 1/2-1/2 — cr.
1975 — Lombardy, William J vs Commons, Kim S — 1-0 — Oberlin, OH USA
1976 — Bolte, Diedrich vs Collett, John — 1/2-1/2 — ICCF
12…Qa5 — 1.8% (17 parties)
1945 — Letelier Martner, Rene vs Castillo Larenas, Mariano — 0-1 — Vina del Mar CHI
1946 — Mortlock, A. vs Watson, GH. — 0-1 — cr.
1956 — Letelier Martner, Rene vs Maher, Vincent — 1/2-1/2 — Moscow RUS
1970 — Hort, Vlastimil vs Platonov, Igor V — 1-0 — Wijk aan Zee NED
1996 — Green, Paul M vs Shikhman, Arthur — 1/2-1/2 — corr IECC Trio