Archives des D48b - 9.a4 - Meran [-0.05] - Page 2 sur 4

Tournois : 961 | 58,560 parties | 9,862 vidéos | MAJ: 10/05/2026

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D48b — Meran

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.a4

Eval: [-0.05]

Les coups candidats

9…b4 — 65.9% (546 parties)

Ambassadeurs : Andersen, Erik (6x), Pech, Jaroslav Jr (4x), Pinter, Jozsef (4x), Mochalin, Faddey (4x), Habes, Jiri (4x), Malakhatko, Vadim (4x), Koltanowski, George (3x), Levenfish, Grigory (3x)

9…Bb7 — 33.8% (280 parties)

Ambassadeurs : Tunik, Gennady (5x), Winter, William (3x), Cimicki, Dariusz (3x), Istomin, Aleksandr Vasilievich (3x), Koltanowski, George (2x), Michell, Reginald (2x), Eltsov, Andrey (2x), Karasev, Vladimir I (2x)

9…Nb6 — 0.1% (1 parties)

Ambassadeurs : Hughes, William (1x), Heller, Wayne (1x)

9…Bb4 — 0.1% (1 parties)

Ambassadeurs : Sartori, Delfino (1x), Evangelisti, Massimo (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…b4	9…Bb7	9…Nb6	9…Bb4
<1800	24	46%	50%	—	4%
1800-2200	256	64%	36%	—	—
2200-2600	379	67%	33%	—	—
2600+	17	41%	59%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…b4	9…Bb7	9…Nb6	9…Bb4
1920s	8	50%	50%	—	—
1930s	29	83%	17%	—	—
1940s	20	75%	25%	—	—
1950s	10	80%	20%	—	—
1960s	9	89%	11%	—	—
1970s	7	57%	43%	—	—
1980s	31	71%	29%	—	—
1990s	58	71%	28%	2%	—
2000s	268	72%	28%	—	—
2010s	348	59%	40%	—	0%
2020s	40	48%	52%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…b4	59%	48%	▼ -12.0%
9…Bb7	40%	52%	▲ +12.3%
9…Nb6	0%	0%	+0.0%
9…Bb4	0%	0%	-0.3%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 1 partie

Parties historiques

9…b4 — 65.9% (546 parties)

1927 — Vajda, Arpad vs Asztalos, Lajos — 1-0 — London ENG
1928 — Brody, Miklos vs Voellmy, Erwin — 1-0 — The Hague NED
1929 — Koltanowski, George vs Engelmann, Marcel — 1-0 — Ghent
1929 — Van den Bosch, Johannes vs Wertheim, Johan Hendrik — 1-0 — The Hague NED
1930 — Andersen Zargham, Ellene vs Makarczyk, Kazimierz — 1-0 — Hamburg GER

9…Bb7 — 33.8% (280 parties)

1925 — Vidmar Milan vs Michell, Reginald — 1-0 — Hastings ENG
1926 — Vidmar, Milan Sr vs Michell, Reginald — 1-0 — Hastings Town Hall
1929 — Koltanowski, George vs Winter, William — 1-0 — Ramsgate
1929 — Koltanowski, George vs Winter, William — 1-0 — Ramsgate
1930 — Ahues, Carl vs Winter, William — 1-0 — Scarborough ENG

9…Nb6 — 0.1% (1 parties)

1995 — Hughes, William vs Heller, Wayne — 0-1 — ?

9…Bb4 — 0.1% (1 parties)

2017 — Sartori, Delfino vs Evangelisti, Massimo — 1-0 — ICCF

1932 Bad Sliac – Round 1 – Vidmar, Marjeta – 1/2-1/2 – Pirc, Vasja – G5

1933 Mnichovo ch CZE – Round 8 – Gonzalez May, Daniel Francisco – 1-0 – Treybal, Karel – G10

1933 Moravska Ostrava – Round ? – Herzog, Franz – 0-1 – Pirc, Vasja – G13

1934 Copenhagen – Round 1 – Andersen, Erik – 0-1 – Ruben, Carl – G4

1934 Syracuse – Round 1 – Reshevsky, Samuel – 1/2-1/2 – Kashdan, Isaac – G7

1935 Bad Nauheim – Round 1 – Andersen, Erik – 1/2-1/2 – Bogoljubow, Efim – G3

1935 Buenos Aires – Round 1 – Vinuesa, Juan – 0-1 – Villegas, Benito – G3

1936 Bad Nauheim – Round 1 – Ahues, Carl – 1-0 – Bogoljubow, Efim – G4

1938 URS Ch, semi final – Round 1 – Makogonov, Mikhail – 1/2-1/2 – Yudovich, Mikhail M – G11

1941 Munchen – Round 3 – Opocensky, Karel – 0-1 – Rethy, Pal – G31

1944 Moskou ch-URS – Round 1 – Tolush, Alexander – 1-0 – Veresov, Gavriil – G106

1946 Pittsburgh Open – Round 1 – Kupchik, Abraham – 1-0 – Westbrock, J. – G5