C91c - 9…Bg4 10.Be3 - Closed, Bogoljubow (1923)

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C91c — Closed, Bogoljubow (1923)
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.d4 Bg4 10.Be3
Les coups candidats
Ambassadeurs : Van Riemsdijk, Herman C. (40x), Noble, Mark Frederick (15x), Langer, Raimund (15x), Prokopp, Heinz (11x), Van der Wiel, John T.H. (11x), Ganguly, Surya Shekhar (11x), Lederman, Leon (11x), Mammadzada, Gulay (11x)
10…Na5 — 13.7% (709 parties)
Ambassadeurs : Van Riemsdijk, Herman C. (14x), Kholmov, Ratmir D (8x), Parkanyi, Attila (6x), Fishbein, Alexander (4x), Gunsberger, Alexander (3x), Swati Ghate (3x), Brito, Luismar (3x), Cardoso, Almir Correia (3x)
10…Bh5 — 11.7% (606 parties)
Ambassadeurs : Romanishin, Oleg M (12x), Sutovsky, Emil (8x), Morozevich, Alexander (7x), Van Riemsdijk, Herman C. (6x), Xiong, Jeffery (5x), Hebden, Mark L (5x), Sousa, Andre Ventura (5x), Kunzelmann, Fred Dr (4x)
10…d5 — 3.6% (189 parties)
Ambassadeurs : Van Riemsdijk, Herman C. (5x), Jovcic, Milan (3x), Prokopp, Heinz (3x), Rantanen, Yrjo A. (3x), Ibragimov, Ildar (3x), Wilshusen, Horst (3x), Perenyi, Bela (2x), Lane, Gary W (2x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 10…exd4 10…Na5 10…Bh5 10…d5
<1800 202 57% 15% 7% 2%
1800-2200 1541 56% 20% 10% 2%
2200-2600 2585 65% 10% 15% 4%
2600+ 173 69% 1% 24% 1%
Évolution par décennie (% des parties)
Décennie N parties 10…exd4 10…Na5 10…Bh5 10…d5
1950s 56 45% 23% — 2%
1960s 173 58% 27% — 3%
1970s 269 64% 16% 1% 12%
1980s 359 68% 13% 4% 8%
1990s 384 50% 23% 4% 8%
2000s 1330 62% 14% 11% 4%
2010s 2245 65% 11% 15% 2%
2020s 367 53% 12% 24% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
10…exd4 65% 53% ▼ -11.8%
10…Na5 11% 12% ▲ +1.3%
10…Bh5 15% 24% ▲ +9.0%
10…d5 2% 2% ▲ +0.9%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 8 parties
Carlsen, Magnus — 7 parties
Ding, Liren — 4 parties
Karpov, Anatoly — 2 parties
Anand, Viswanathan — 1 partie
Kasparov, Garry — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
10…exd4 — 61.9% (3210 parties)
1950 — Mitchell, Graham Russell vs Collins, John W — 1-0 — ICCF
1950 — Mitchell, Graham Russell vs Purdy, Cecil J S — 1-0 — ICCF
1950 — Tal, Mikhail vs Sodell B — 0-1 — Tournament Latvia
1951 — Fuderer, Andrija vs Trifunovic, Petar — 0-1 — Sarajevo BIH
1951 — Hanauer, Milton Loeb vs Santasiere, Anthony — 0-1 — New York, NY USA
10…Na5 — 13.7% (709 parties)
1950 — Vestol, Aage vs Bolbochan, Julio — 1/2-1/2 — Dubrovnik CRO
1951 — Llado Lumbera, Jaime vs Torrens, Oswaldo Gia — 1-0 — Madrid ESP
1952 — Bobotsov, Milko G vs Litmanowicz, Wladyslaw — 1/2-1/2 — Miedzyzdroje
1953 — Panov, Vasily vs Pittakas, Charalambos — 1-0 — URS-ch sf Vilnius LTU
1953 — Mitchell, Graham Russell vs Madsen, Svend — 1/2-1/2 — corr Wch1
10…Bh5 — 11.7% (606 parties)
1975 — Zeitler, Hans-Juergen vs Walisiak, Roman — 1-0 — Bad Berleburg
1977 — Panchenko, Alexander N vs Zaitsev, Igor A — 1-0 — Sochi Sochi RUS
1978 — Gulko, Boris vs Romanishin, Oleg M — 0-1 — Lvov zt
1979 — Psakhis, Lev vs Sternberg, Jean — 1/2-1/2 — Leningrad RUS
1981 — Kunzelmann, Fred Dr vs Unger, Gregor — 1/2-1/2 — DDR-Cup corr
10…d5 — 3.6% (189 parties)
1955 — Sherbakov, Vitaly vs Ragozin, Viacheslav — 0-1 — Moscow RUS
1960 — Littlewood, John E vs Gligorić, Svetozar — 0-1 — Hastings ENG
1965 — Sanguineti, Raúl Carlos vs Palermo, Vicente — 1-0 — Buenos Aires ARG
1968 — Garcia R., Luis Ernesto vs German, Eugenio — 1-0 — Lugano olm
1968 — Prokopp, Heinz vs Jovcic, Milan — 0-1 — ?