D22b - 4…b5 - Queen's Gambit Accepted: Alekhine Defense, Haberditz Variation (1936)

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D22b — Queen's Gambit Accepted: Alekhine Defense, Haberditz Variation (1936)
1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 b5
Les coups candidats
5.a4 — 98.5% (772 parties)
Ambassadeurs : Stevic, Hrvoje (13x), Heberla, Bartlomiej (12x), Mack Juergen (10x), Rey Dieter (10x), Schmitz, Josef (8x), Rosenberg, Clemens von (8x), Ruefenacht, Matthias (7x), Dempster, Dave (7x)
5.Be2 — 0.5% (4 parties)
Ambassadeurs : Hilchenbach, Hubertus (2x), Yangibayev, Rustam (1x), Mcdaniel, Jeff (1x), Schmidt, Roland (1x), Henke, Simon (1x), Martynov, Aleksandr (1x), Bimaganov, Ersain (1x)
5.Nc3 — 0.4% (3 parties)
Ambassadeurs : Maier, Wolfram (1x), Mainka, Walter (1x), McCann, Steve (1x), Mitchell, James A (1x), Ditmas, Hugh (1x), Raedisch, Peter (1x)
5.b3 — 0.4% (3 parties)
Ambassadeurs : Povse, Dusan (1x), Gradisar, Metod (1x), Jakovenko, Dmitry (1x), Carlsen, Magnus (1x), Pazeriene, Diana (1x), Mestek, Igor (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5.a4 5.Be2 5.Nc3 5.b3
<1800 26 96% 4% — —
1800-2200 187 97% — 1% 1%
2200-2600 421 100% — — —
2600+ 40 98% — — 2%
Évolution par décennie (% des parties)
Décennie N parties 5.a4 5.Be2 5.Nc3 5.b3
1950s 13 100% — — —
1960s 7 100% — — —
1970s 5 100% — — —
1980s 28 100% — — —
1990s 47 96% — 4% —
2000s 158 97% 1% — 1%
2010s 412 99% 1% 0% —
2020s 114 99% — — 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5.a4 99% 99% +0.3%
5.Be2 1% 0% ▼ -0.7%
5.Nc3 0% 0% -0.2%
5.b3 0% 1% ▲ +0.9%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Parties historiques
5.a4 — 98.5% (772 parties)
1952 — Molnar, Aaron vs Smith, Caleb — 1-0 — CCOL2 corr
1952 — Rosselson, Leon vs Fox, Michael David — 1-0 — Hastings ENG
1954 — Prosdocimi, Arrigo vs Fragoso, Darcy — 1/2-1/2 — Sao Paulo BRA
1954 — Eken, Max vs Reitstein, Leonard R — 1/2-1/2 — Cape Town RSA
1954 — Tal, Mikhail vs Akmentins, Ainars — 1-0 — USSR
5.Be2 — 0.5% (4 parties)
2008 — Yangibayev, Rustam vs Mcdaniel, Jeff — 0-1 — ?
2012 — Martynov, Aleksandr vs Bimaganov, Ersain — 1-0 — Astana KAZ
2014 — Hilchenbach, Hubertus vs Schmidt, Roland — 1-0 — ?
2014 — Hilchenbach, Hubertus vs Henke, Simon — 0-1 — ?
5.Nc3 — 0.4% (3 parties)
1996 — McCann, Steve vs Mitchell, James A — 1-0 — corr IECC Trio
1999 — Maier, Wolfram vs Mainka, Walter — 0-1 — ?
2013 — Ditmas, Hugh vs Raedisch, Peter — 1-0 — Lueneburg
5.b3 — 0.4% (3 parties)
2006 — Povse, Dusan vs Gradisar, Metod — 1-0 — ICCF
2009 — Jakovenko, Dmitry vs Carlsen, Magnus — 0-1 — Moscow RUS
2024 — Pazeriene, Diana vs Mestek, Igor — 1-0 — Rhodes GRE