B33d - 6.Nb3 - Schlechter Variation (1930)

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B33d — Lasker-Pelikan Variation, Schlechter Variation (1930)
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nb3
Les coups candidats
6…Bb4 — 88.5% (3243 parties)
Ambassadeurs : Randolph, Donald (15x), Flecher, Joseph (10x), Crepan, Marjan (7x), Hlavac, Rudolf (6x), Schubert, Steffen (6x), Baeta, Marcio Netto (6x), Panyushkin, Boris Nikolaevich (5x), Lematschko, Tatjana (4x)
6…d6 — 5.5% (203 parties)
Ambassadeurs : Preisz, Balazs (3x), Bielicki, Birke (2x), Ottlakan, Peter (2x), Kalkstein, Rodolfo (1x), Gligorić, Svetozar (1x), Oliveira, Paulo Sergio de Castro (1x), Rivera, Daniel (1x), Lesiege, Alexandre (1x)
6…Be7 — 3.1% (113 parties)
Ambassadeurs : Anthopoulos, Hristos (2x), Safonow (1x), Chebanenko, Ilya (1x), Lantsias, Andreas (1x), Lagha, Khelil (1x), Bouna, Safwan younes (1x), Delon, Ilia Nick (1x), Assem, Magdy (1x)
6…a6 — 1.6% (58 parties)
Ambassadeurs : Wall, Alejandro (3x), Thomas, Jerry (2x), Wall, Bill (2x), Selnes, Odd Kjetil (2x), Fenske, Nora (2x), Levy, Ariel (1x), Gross, Henry (1x), Freeman, Russell (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Bb4 6…d6 6…Be7 6…a6
<1800 564 86% 6% 4% 2%
1800-2200 1777 90% 5% 3% 1%
2200-2600 350 91% 5% 2% —
2600+ 2 100% — — —
Évolution par décennie (% des parties)
Décennie N parties 6…Bb4 6…d6 6…Be7 6…a6
1950s 20 85% 5% — —
1960s 30 80% — 10% 7%
1970s 99 93% 3% 3% —
1980s 148 89% 5% 4% 1%
1990s 788 87% 7% 3% 2%
2000s 1284 87% 6% 4% 2%
2010s 1078 90% 5% 3% 1%
2020s 217 93% 4% 3% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Bb4 90% 93% ▲ +2.6%
6…d6 5% 4% ▼ -1.1%
6…Be7 3% 3% +0.1%
6…a6 1% 1% -0.4%
Parties historiques
6…Bb4 — 88.5% (3243 parties)
1951 — Vatter, Hans-Joachim vs Knischewski — 1-0 — DDR
1951 — Salamuni R vs Siqueira, Alexandre Carneiro — 1/2-1/2 — Fortaleza BRA
1951 — Poulsen, Christian vs Enevoldsen, Harald — 0-1 — Odense DEN
1952 — Kupferstich, Moises vs Enevoldsen, Harald — 0-1 — Herning
1952 — Kopaev, Nikolay A vs Korchnoi, Viktor — 1-0 — Minsk BLR
6…d6 — 5.5% (203 parties)
1953 — Kalkstein, Rodolfo vs Gligorić, Svetozar — 0-1 — Montevideo URU
1976 — Vognsen, Anders vs Christensen, Klaus — 1/2-1/2 — Denmark
1977 — Reisinger, Sam vs Wall, Alejandro — 0-1 — Columbus, OH USA
1979 — Bachtiar, Arovah vs Das, Sangita — 1-0 — Singapore SIN
1980 — Lavric, Alexandru vs Jagdhuber, Hans — 0-1 — Noordwijkerhout
6…Be7 — 3.1% (113 parties)
1960 — Safonow vs Chebanenko, Ilya — 0-1 — Moldavia ch
1962 — Lantsias, Andreas vs Lagha, Khelil — 0-1 — Varna BUL
1964 — Bouna, Safwan younes vs Delon, Ilia Nick — 1-0 — Tel Aviv ISR
1974 — Pereira, Silvio Cunha vs Brito, Luismar — 1-0 — Rio de Janeiro BRA
1975 — Miettinen, Keijo vs Horrocks, Jeff — 0-1 — Bad Berleburg
6…a6 — 1.6% (58 parties)
1966 — Gross, Henry vs Freeman, Russell — 1-0 — San Francisco, Ca
1969 — Wall, Alejandro vs Levy, Ariel — 0-1 — Santa Monica, CA USA
1980 — Thomas, Jerry vs Wall, Bill — 1/2-1/2 — ?
1980 — Thomas, Jerry vs Wall, Alejandro — 0-1 — Indianapolis, IN USA
1992 — White, Russell vs Wall, Alejandro — 1-0 — San Antonio, TX USA