D48l - 9.e4 c5 10.d5 - Meran, Reynolds Variation (1949)

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D48l — Meran, Reynolds Variation (1949)
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.e4 c5 10.d5
Les coups candidats
Ambassadeurs : Chekhov, Valery A (11x), Bakheet Farag (10x), Hector, Jonny (10x), Ciric, Dragoljub M (9x), Korchnoi, Viktor (9x), Kuijf, Marinus (8x), Jovcic, Milan (8x), Clares Huanca, Danner Saed (8x)
Ambassadeurs : Kozul, Zdenko (7x), Pavasovic, Dusko (6x), Shirov, Alexei (5x), Peralta, Fernando (5x), Lukacs, Peter (4x), Korneev, Oleg (4x), Salzmann, Stefan (4x), Salonen, Jukka (4x)
Ambassadeurs : Whiteley, Andrew Jonathan (6x), Biyiasas, Peter (3x), Haugli, Petter (3x), Zaric, Srboljub (3x), Averbakh, Yuri L (2x), Pacsay, Laszlo (2x), Sakharov, Yuri N (2x), Bobotsov, Milko G (2x)
10…Bb7 — 6.1% (156 parties)
Ambassadeurs : Knox, Victor W (6x), Perkins, Alan H (2x), Dearing, Eddie (2x), Littlewood, John E (1x), Littlewood, Norman (1x), Bronstein, David I (1x), Alexander Tadala (1x), Grivainis, Konstantin (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10…c4 10…Qc7 10…e5 10…Bb7
<1800 97 52% 25% 7% 6%
1800-2200 804 50% 27% 6% 7%
2200-2600 1143 60% 25% 7% 6%
2600+ 59 58% 29% — 14%
Évolution par décennie (% des parties)
Décennie N parties 10…c4 10…Qc7 10…e5 10…Bb7
1950s 36 33% — 36% 3%
1960s 73 40% — 38% 3%
1970s 89 58% 1% 29% 6%
1980s 242 76% 1% 15% 1%
1990s 572 68% 17% 8% 1%
2000s 775 53% 29% 5% 6%
2010s 694 45% 33% 3% 12%
2020s 86 47% 37% 6% 7%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10…c4 45% 47% ▲ +1.1%
10…Qc7 33% 37% ▲ +3.9%
10…e5 3% 6% ▲ +2.9%
10…Bb7 12% 7% ▼ -5.0%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 8 parties
Tal, Mikhail — 5 parties
Kramnik, Vladimir — 4 parties
Botvinnik, Mikhail — 3 parties
Anand, Viswanathan — 2 parties
Ju, Wenjun — 1 partie
Gukesh D — 1 partie
Parties historiques
10…c4 — 55.6% (1426 parties)
1952 — Trifunovic, Petar vs Szily, Jozsef — 1/2-1/2 — Helsinki olm
1953 — Darga, Klaus vs Lehmann, Heinz — 1-0 — Berlin GER
1953 — Baumbach, Friedrich, Dr. vs Hampel, Johannes — 1-0 — Brandenburg/Havel
1954 — Pachman, Ludek vs Sefc, Jan — 1/2-1/2 — Prague CZE
1954 — Kan, Ilya A vs Botvinnik, Mikhail — 1/2-1/2 — Moscow RUS
10…Qc7 — 22.9% (587 parties)
1975 — Furman, Semyon vs Bronstein, David I — 1-0 — Erevan ARM
1982 — Ziger, Silvestar vs Kaskadanov, N — 1-0 — cr YUG-URS
1983 — Ziger, Silvestar vs Kaskatay, Abutalib — 1-0 — cr.
1987 — Groszpeter, Attila vs Hoelzl, Franz — 0-1 — Budapest HUN
1990 — Belic, Milovan vs Skembris, Spyridon — 1/2-1/2 — ?
10…e5 — 8.1% (207 parties)
1950 — Molnar, Istvan vs Gereben, Erno — 1/2-1/2 — Budapest HUN
1952 — Boleslavsky, Isaac vs Botvinnik, Mikhail — 1-0 — Voronovo
1953 — Ilivitsky, Georgy A vs Polugaevsky, Lev — 0-1 — Saratov
1953 — Abarashi, Seyed Mahyar vs Sokolsky, Alexey — 1-0 — USSR ch-02 5255
1953 — Doda, Zbigniew vs Regedzinski, Teodor — 1-0 — Poznan POL
10…Bb7 — 6.1% (156 parties)
1952 — Bronstein, David I vs Alexander Tadala — 1-0 — Moskou ch-URS
1969 — Littlewood, John E vs Knox, Victor W — 1/2-1/2 — Rhyl ch-BCF
1969 — Littlewood, Norman vs Knox, Victor W — 1/2-1/2 — British ch
1974 — Perkins, Alan H vs Knox, Victor W — 1/2-1/2 — ?
1974 — Perkins, Alan H vs Knox, Victor W — 1/2-1/2 — Clacton ch-BCF