D36a — Exchange (1954)
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2
Les coups candidats
Ambassadeurs : Baburin, Alexander (10x), Rabiega, Robert (8x), Kantorik, Marian (8x), Van der Sterren, Paul (6x), Halliwell, Toni (6x), Hoffman, Alejandro (6x), Polak, Tomas (6x), Pigusov, Evgeny (5x)
6…h6 — 13.5% (792 parties)
Ambassadeurs : Allawi Rawlings (17x), Boguszlavszkij, Jevgenyij (11x), Halliwell, Toni (7x), Sharpe, Sam (6x), Galjé, Hans (6x), Petersons, Indulis (5x), Mamedyarov, Shakhriyar (4x), Aleksandrov, Viktor A. (3x)
6…Nbd7 — 8.8% (513 parties)
Ambassadeurs : Lacrosse, Marc (5x), Raicevic, Vladimir (4x), Kozlov, Oleg (3x), Gross, Stefan (2x), Sorensen, Torben (2x), Thorsteinsson, Arnar (2x), Plachetka, Jan (2x), Barsov, Alexei (2x)
Ambassadeurs : Repkova, Eva (7x), Lengyel, Bela (6x), Lu, Shanglei (5x), Deforel, Jorge Eduardo (5x), Spassky, Boris V. (4x), Nenciulescu, Silviu (4x), Rissotti, Laureano (4x), Wang, Chen (4x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…Be7 6…h6 6…Nbd7 6…Na6
<1800 373 56% 18% 9% 2%
1800-2200 2678 59% 14% 9% 5%
2200-2600 2088 57% 12% 9% 11%
2600+ 145 54% 27% 1% 14%
Évolution par décennie (% des parties)
Décennie N parties 6…Be7 6…h6 6…Nbd7 6…Na6
1950s 33 58% 12% 15% 6%
1960s 33 52% 15% 3% 18%
1970s 23 74% 13% 9%
1980s 144 58% 1% 13% 17%
1990s 809 68% 4% 10% 11%
2000s 1481 64% 6% 10% 9%
2010s 2363 58% 16% 8% 7%
2020s 968 43% 29% 6% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…Be7 58% 43% ▼ -14.6%
6…h6 16% 29% ▲ +13.7%
6…Nbd7 8% 6% ▼ -2.2%
6…Na6 7% 2% ▼ -5.1%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 5 parties
Kramnik, Vladimir — 5 parties
Carlsen, Magnus — 5 parties
Ju, Wenjun — 2 parties
Gukesh D — 2 parties
Anand, Viswanathan — 1 partie
Parties historiques
6…Be7 — 58.4% (3420 parties)
1950 — Staldi, Cherubino vs Stalda, Giuseppe — 0-1 — Venice ITA
1951 — Rapaka Samuel Paul vs Guimard, Carlos E — 1-0 — New York, NY USA
1951 — Rapaka Samuel Paul vs Guimard, Carlos E — 1-0 — New York, NY USA
1952 — Kotov, Alexander vs Yudovich, Mikhail M — 1/2-1/2 — Moscow RUS
1954 — Eken, Max vs Beni, Alfred — 1-0 — Zurich SUI
6…h6 — 13.5% (792 parties)
1952 — Belem, Luciano vs Santiago, Oliveira Ernani — 1-0 — ?
1955 — Taimanov, Mark vs Averbakh, Yuri L — 1/2-1/2 — Moskou ch-URS
1958 — Lombardy, William J vs Sumar, Julio — 1-0 — Mar del Plata ARG
1959 — Incutto, Carlos vs Contreras Daza, Victor Samuel — 1-0 — Buenos Aires ARG
1960 — Gheorghiu, Florin vs Radulescu, Mihai — 1-0 — Bucharest ROU
6…Nbd7 — 8.8% (513 parties)
1956 — Khalilbeili, Sultan vs Chukaev, Egor — 1-0 — Tbilisi GEO
1957 — Rapaka Samuel Paul vs Mogle, Al — 0-1 — Winnipeg CAN
1958 — OBrien, Erik Michael vs Malingrey, Charles — 1-0 — Oakland
1959 — Zurakhov, Vladlen Y vs Feldman, Steven — 0-1 — Kiev UKR
1959 — Weber, Bernd, Dr. vs Etzold, Werner — 1-0 — Leipzig GER
6…Na6 — 7.6% (443 parties)
1956 — Spassky, Boris V. vs Szabo, Laszlo — 1/2-1/2 — Amsterdam NED
1956 — Spassky, Boris V. vs Szabo, Ladislav — 1/2-1/2 — Amsterdam NED
1960 — Portisch, Lajos vs Anay Barche — 1/2-1/2 — Budapest HUN
1960 — Abanin, Vladimir vs Mohrlok, Dieter — 1/2-1/2 — Hamburg WGER-USSR
1962 — Sliwa, Bogdan vs Fischer, Robert J — 0-1 — Warsaw POL