A37f — English: Symmetrical, 5.Nf3 d6 6.d3

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 d6 6.d3 *   ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bB
bQ
bK
bN
bR
bP
bP
bP
bP
bB
bP
bN
bP
bP
Case forte (2v0)
bP
Case forte (2v0)
Case forte (2v0)
wP
Case forte (2v0)
Case forte (2v0)
wN
wPPion central
wN
wP
wP
wP
wP
wP
wB
wP
wR
wBFou actif — mobilité 5
wQ
wK
wR
abcdefgh
Plans. O-O (Mettre le roi en sécurité, connecter les tours — 49 % des parties) ; Bd2 (Fou actif (mobilité 5), Développer c1 — 13 % des parties) ; a3 (Préparer expansion aile dame — 8 % des parties) ; Rb1 (6 % des parties) ; Bg5 (Fou actif (mobilité 8), Développer c1 — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wK
wQ
wB
wR
wP
wB
wP
wP
wP
wP
wP
wN
wP
wN
Avant-poste C (accessible)
wP
Case forte (2v0)
Case forte (2v0)
Case forte (3v1)
bP
bP
bP
bN
bP
bBFou actif — mobilité 6
bP
bP
bP
bP
bR
bN
bK
bQ
bBFou actif — mobilité 5
bR
hgfedcba
Plans. ...e5 (Occuper le centre — 31 % des parties) ; ...e6 (Poussée — 20 % des parties) ; ...Nf6 (Développer g8 — 18 % des parties) ; ...Bd7 (Fou actif (mobilité 5), Développer c8 — 6 % des parties) ; ...Nh6 (Développer g8 — 6 % des parties).
Avantages
Faiblesses
Diagonale active
Plans

Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● e2→d3, f2→g3, h2→g3, d3→c4 ● d6→c5, e7→d6, f7→g6, h7→g6
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● e4 (2v0), ● f4 (2v0), ● b5 (2v0), ● d5 (2v0), ● g5 (2v0) ● b4 (2v0), ● d4 (3v1), ● e5 (3v1), ● f5 (2v0)
Cases faibles
Centre ● d5 (2v0), ● e4 (2v0) ● d4 (3v1), ● e5 (3v1)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 5)
Bg2 ● Bg2 Ok (mob. 2)
Bg7 ● Bg7 Actif (mob. 6)
Bc8 ● Bc8 Non développé (mob. 5)
Paire de fous ● Oui ● Oui
Non développées 3 (● c1, ● a1, ● h1) 4 (● g8, ● c8, ● a8, ● h8)
Sécurité du roi
♔ Blancs ♚ Noirs
Statut ● Au centre ● Au centre
Droits de roque O-O / O-O-O O-O / O-O-O
Thèmes
♔ Blancs ♚ Noirs
Phase Ouverture
Centre mobile
Ruptures ● d3-d4 ● …d6-d5
Partie
? 1990 – Round ? – Gurevich, Mikhail – 1/2-1/2 – Yudasin, Leonid – G5
1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 d6 6. d3 Rb8 7. O-O Nh6 8. Bd2 Nf5 9. a3 a5 10. Rb1 O-O
1921 Brno Morava – Round 8 – Treybal, Karel – 1-0 – Haida, August Konrad – G16
1. c4 c5 2. Nc3 Nc6 3. d3 g6 4. g3 Bg7 5. Bg2 d6 6. Nf3 Nf6 7. Bd2 Bd7 8. Qc1 Qc8 9. Bh6 Nh5 10. Bxg7 Nxg7
1922 Bad Oeynhausen – Round 1 – Carls, Carl – 1/2-1/2 – Hilse, Wilhelm H – G1
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nf3 Bd7 7. e4 Nf6 8. O-O O-O 9. Nd5 Rb8 10. Bg5 Nxd5
1924 New York – Round 3 – Reti, Richard – 1/2-1/2 – Maroczy, Geza – G69
1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. d3 Bd7 7. O-O Rb8 8. Be3 Nd4 9. Qd2 h5 10. Rab1 Bc6
1925 Baden-Baden – Round 1 – Carls, Carl – 1-0 – Rosselli, Stefano – G6
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nf3 Nf6 7. Bd2 Bd7 8. O-O O-O 9. Nd5 Re8 10. Bc3 e5
1933 Paris Paris FRA – Round 6 – Tartakower, Savielly – 1-0 – Gromer, Aristide – G6
1. c4 c5 2. Nc3 g6 3. g3 Nc6 4. Bg2 Bg7 5. d3 d6 6. Nf3 h6 7. h3 e5 8. Bd2 Be6 9. Rb1 Nge7 10. e4 Qd7
1955 Buenos Aires CA – Round 3 – Sanguineti, Raúl Carlos – 1/2-1/2 – Trifunovic, Petar – G23
1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 d6 6. Nf3 Nh6 7. O-O O-O 8. Bd2 Nf5 9. Rb1 Rb8 10. a3 a5
1956 Leningrad ch-URS – Round 1 – Lisitsin, Georgy – 0-1 – Averbakh, Yuri L – G126
1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 d6 6. d3 Nh6 7. e4 O-O 8. O-O e5 9. Nd5 Ne7 10. Nf6+ Bxf6
1956 Leningrad ch-URS – Round 1 – Lisitsin, Georgy – 0-1 – Bannik, Anatolij – G127
1. Nf3 g6 2. g3 Bg7 3. Bg2 c5 4. c4 Nc6 5. Nc3 d6 6. d3 Nh6 7. Bd2 Nf5 8. O-O O-O 9. Qc1 Rb8 10. Rb1 Bd7
1956 URS Ch sf – Round ? – Lisitsin, Georgy – 1/2-1/2 – Khasin, Abram – G129
1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 d6 6. d3 e5 7. e4 Nge7 8. Be3 O-O 9. Qd2 Nd4 10. Nh4 Nec6
1957 Mar del Plata – Round 5 – Sanguineti, Raúl Carlos – 1/2-1/2 – Keres, Paul – G58
1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. d3 a6 7. Bd2 Rb8 8. a4 Bd7 9. Rb1 Nh6 10. h4 Nf5
1958 HUN Ch 13th – Round 1 – Forintos, Gyozo V – 0-1 – Barcza, Gedeon – G9
1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. c4 Nc6 5. Nc3 d6 6. d3 a6 7. Bd2 Rb8 8. Rb1 b5 9. cxb5 axb5 10. b4 Nxb4
1958 Portoroz Interzonal – Round 6 – Benko, Pal – 1-0 – Averbakh, Yuri L – G51
1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. d3 d6 6. Nf3 e5 7. a3 a6 8. O-O Nge7 9. Ne1 Rb8 10. Nc2 b5
1959 HUN Ch 15th – Round 9 – Koberl, Ferenc – 1-0 – Orendy, Emil – G28
1. c4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. Nf3 d6 6. d3 e5 7. Rb1 Nge7 8. a3 b6 9. b4 Bb7 10. O-O Qd7
1960 Buenos Aires – Round 12 – Eliskases, Erich – 1/2-1/2 – Reshevsky, Samuel – G125
1. c4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. d3 d6 6. Nf3 Rb8 7. O-O a6 8. Ne1 Bd7 9. Rb1 b5 10. Bd2 b4
1961 Oberhausen etc – Round 10 – Clemens, Christian, Dr. – 1/2-1/2 – Furman, Slavomir – G237
1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. Nf3 d6 6. d3 Nh6 7. O-O Nf5 8. Rb1 O-O 9. Bd2 Rb8 10. a3 a6
1961 ROM Ch – Round 4 – Botez, Constantin – 1/2-1/2 – Gheorghiu, Florin – G27
1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. d3 Bd7 7. Bd2 Qc8 8. h4 h5 9. Rb1 Nh6 10. a3 Nf5
1962 Budapest-Warsaw m – Round ? – Gawlikowski, Stanislaw – 0-1 – Forintos, Gyozo V – G37
1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 d6 6. d3 Bd7 7. O-O a6 8. Rb1 b5 9. cxb5 axb5 10. Nxb5 Rxa2
1963 Budapest ch-HUN – Round 1 – Koberl, Ferenc – 1/2-1/2 – Varnusz, Egon – G10
1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nc3 a6 7. Be3 Nh6 8. Qc1 Nf5 9. Bd2 Rb8 10. O-O b5
1963 It – Round 15 – Szilagyi, Gyorgy Laszlo – 1/2-1/2 – Liebert, Heinz – G10
1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nc3 d6 6. d3 a6 7. Bd2 Rb8 8. a4 Nf6 9. O-O O-O 10. Ne1 Ne8
1963 Odense – Round 1 – Pedersen, Eigil – 1-0 – From, Sigfred – G2
1. c4 c5 2. Nf3 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 d6 6. d3 Bd7 7. Rb1 Qc8 8. Bd2 Nf6 9. Nd5 h5 10. Bc3 e5
1963 URS – Round ? – Bukhover, Alik – 1-0 – Kapengut, Albert – G18
1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. d3 Bd7 7. Bd2 a6 8. Qc1 Rb8 9. Nd5 b5 10. Bc3 e5
1963 Zenica ch YUG – Round 13 – Damjanovic, Mato – 1/2-1/2 – Velimirovic, Dragoljub – G69
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nf3 Nf6 7. Bg5 Bg4 8. h3 Be6 9. a3 Qd7 10. Rb1 O-O
1964 Holstebro ch-DEN – Round 1 – Pedersen, Eigil – 1/2-1/2 – Norby, Peter H. – G5
1. Nf3 c5 2. g3 g6 3. c4 Bg7 4. Nc3 Nc6 5. Bg2 d6 6. d3 Nh6 7. h4 Bg4 8. Nd5 e6 9. Bg5 Qa5+ 10. Bd2 Qd8
1965 FRG Ch 08th – Round 4 – Besser, Hans – 1/2-1/2 – Hecht, Hans-Joachim – G9
1. Nf3 g6 2. c4 Bg7 3. Nc3 c5 4. g3 Nc6 5. Bg2 d6 6. d3 e5 7. Rb1 Nge7 8. a3 O-O 9. O-O Rb8 10. b4 b6
1965 Malaga Malaga ESP – Round 11 – Rocha, Antonio – 1/2-1/2 – O'Kelly de Galway, Alberic – G22
1. g3 c5 2. Bg2 Nc6 3. d3 g6 4. c4 Bg7 5. Nf3 d6 6. Nc3 Bd7 7. O-O Qc8 8. Nd5 Nf6 9. Nxf6+ Bxf6 10. Rb1 h5
1967 IBM-B – Round 8 – Medina-Garcia, Antonio – 1-0 – Van der Lijn, Dick – G23
1. g3 c5 2. Bg2 g6 3. c4 Bg7 4. Nc3 Nc6 5. d3 d6 6. Nf3 e5 7. Bd2 Be6 8. Ng5 Nge7 9. Nxe6 fxe6 10. h4 h6
1967 Skopje – Round 9 – Panov, Vladimir – 0-1 – Popov, Luben – G68
1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 d6 6. Nf3 e6 7. O-O Nge7 8. Bg5 h6 9. Bd2 O-O 10. Rb1 a6
1968 Havirov – Round 5 – Kornasiewicz, Stanislaw – 1-0 – Pantaleev, Dimitar Dimitrov – G18
1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 d6 6. d3 Bd7 7. O-O Qc8 8. Re1 Nh6 9. Bd2 Nf5 10. Rb1 h5
1968 Lugano olm - Round 1 - Borges Calvo, Russlan - 1-0 - Glauser, Hansruediger - G23
1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 d6 6. d3 Rb8 7. O-O Nh6 8. Bd2 O-O 9. a3 a6 10. Rb1 Nf5
1968 Lugano olm - Round 1 - Bouwmeester, Hans - 1/2-1/2 - Kupper, Josef - G10
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. d3 a6 7. Bd2 Rb8 8. a3 Bd7 9. Rb1 b5 10. cxb5 axb5
1968 Netanya-A – Round 10 – Geller, Uzi – 1-0 – Troianescu, Octav – G56
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nf3 Nh6 7. h4 Nf5 8. h5 Nfd4 9. Nxd4 cxd4 10. Ne4 f5
1968 Rubinstein Memorial – Round 6 – Adamski, Jan – 1/2-1/2 – Simagin, Vladimir – G39
1. Nf3 c5 2. c4 g6 3. Nc3 Bg7 4. g3 Nc6 5. Bg2 d6 6. d3 Nh6 7. h4 Ng4 8. Bd2 Nf6 9. a3 O-O 10. Rb1 a5
1968 SWE Ch – Round 1 – Carlberg, Gunnar – 1/2-1/2 – Jansson, Borje – G3
1. Nf3 g6 2. g3 Bg7 3. Bg2 c5 4. c4 Nc6 5. Nc3 d6 6. d3 Bd7 7. O-O Nh6 8. Bd2 Nf5 9. Qc1 O-O 10. Rb1 Rb8
43. Olympiad 2018 – Round 7.7 – Abdulla Hesham Alkhoori – 0-1 – Sasikiran, Krishnan – G488
1. Nf3 g6 2. c4 Bg7 3. Nc3 c5 4. g3 Nc6 5. Bg2 d6 6. d3 e6 7. O-O Nge7 8. Bg5 h6 9. Bd2 b6 10. Qc1 Bb7
Madrid rapid 1988 – Round 6 – Azmaiparashvili, Zurab – 0-1 – Andersson, Ulf 1949 – G30
1. g3 c5 2. Bg2 Nc6 3. c4 g6 4. Nc3 Bg7 5. d3 d6 6. Nf3 Rb8 7. O-O Nf6 8. e3 O-O 9. Re1 a6 10. d4 b5
Saint Louis Blitz 2024 - Round 1 - Firouzja Alireza - 1-0 - Dominguez Perez Leinier - G5
1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. d3 d6 6. Nf3 e6 7. Bd2 Nge7 8. a3 b6 9. Rb1 Bb7 10. O-O Qd7
World Blitz 2017 – Round 10.39 – Meier, Georg – 1/2-1/2 – Alekseev, Evgeny – G528
1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 d6 6. d3 e6 7. a3 Nge7 8. Bd2 b6 9. b4 Bb7 10. Rb1 Qd7
World Blitz 2019 – Round 10.24 – Timofeev, Artyom – 0-1 – Aditya Tari – G671
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nc3 Nc6 5. Nf3 d6 6. d3 e6 7. Bf4 Nge7 8. Qd2 h6 9. h4 e5 10. Be3 Nf5
World Blitz 2019 – Round 12.31 – Timofeev, Artyom – 0-1 – Salem, A.R. Saleh – G810
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nc3 Nc6 5. Nf3 d6 6. d3 e6 7. Bf4 Nge7 8. Qc1 h6 9. O-O g5 10. Bd2 b6
World Blitz 2021 – Round 1.19 – Shoker, Samy – 0-1 – Martirosyan, Haik M. – G10
1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. d3 e5 7. a3 a5 8. Rb1 Nge7 9. O-O O-O 10. Bd2 h6
World Blitz 2022 – Round 5.43 – Harikrishna, Pentala – 1-0 – Svane, Frederik – G264
1. Nf3 c5 2. c4 g6 3. g3 Nc6 4. Bg2 Bg7 5. Nc3 d6 6. d3 Qd7 7. Qd2 b6 8. b3 Bb7 9. Bb2 h5 10. Nd5 Kf8

A37f — Symmetrical (1921)
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 d6 6.d3
Les coups candidats
6…e5 — 31.2% (346 parties)
Ambassadeurs : Parr, Frank (2x), Buerger, Thomas (2x), Ermenkov, Evgenij (2x), Galunov, Todor (2x), Inkiov, Ventzislav (2x), Popov, Vesselin (1x), Milev, Zdravko (1x), Stahlberg, Gideon (1x)
6…e6 — 20.0% (222 parties)
Ambassadeurs : Gomez Jurado, Luis Alberto (3x), Ivanov, Mikhail M. (2x), Gallob, Alois (2x), Timofeev, Artyom (2x), Asis Gargatagli, Hipolito (2x), Erdogdu, Aziz Mert (2x), Yurtseven, Melih (2x), Pap, Misa (2x)
6…Nf6 — 18.4% (204 parties)
Ambassadeurs : Velimirovic, Dragoljub (2x), Payen, Arnaud (2x), Pedzich, Dominik (2x), Stevic, Hrvoje (2x), Anay Barche (1x), Ignatiev, Felix N (1x), Petrosian, Tigran V. (1x), Nezhmetdinov, Rashid (1x)
6…Bd7 — 6.1% (68 parties)
Ambassadeurs : Pedersen, Eigil (2x), Forintos, Gyozo V (2x), Bukhover, Alik (1x), Kapengut, Albert (1x), Botez, Constantin (1x), Gheorghiu, Florin (1x), Radulescu, Mihai (1x), Octaviano, Patrick Matheus (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6…e5 6…e6 6…Nf6 6…Bd7
<1800 61 34% 10% 28% 3%
1800-2200 457 36% 17% 20% 5%
2200-2600 440 29% 28% 10% 6%
2600+ 18 11% 44% 22%
Évolution par décennie (% des parties)
Décennie N parties 6…e5 6…e6 6…Nf6 6…Bd7
1950s 12 50% 8%
1960s 39 13% 5% 26% 26%
1970s 24 58% 8% 8% 4%
1980s 27 33% 7% 19% 19%
1990s 123 28% 12% 29% 7%
2000s 233 38% 14% 20% 6%
2010s 450 31% 23% 17% 5%
2020s 202 25% 33% 13% 3%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6…e5 31% 25% ▼ -6.4%
6…e6 23% 33% ▲ +10.0%
6…Nf6 17% 13% ▼ -4.2%
6…Bd7 5% 3% ▼ -1.6%
Parties historiques
6…e5 — 31.2% (346 parties)
1956 — Stahlberg, Gideon vs Miguel, Nahuel — 1/2-1/2 — Moscow RUS
1956 — Lisitsin, Georgy vs Khasin, Abram — 1/2-1/2 — Leningrad RUS
1957 — Popov, Vesselin vs Milev, Zdravko — 1/2-1/2 — Sofia BUL
1958 — Benko, Pal vs Averbakh, Yuri L — 1-0 — Portoroz SLO
1958 — Berg, Gerd vs Azmaiparashvili, Zurab — 1-0 — Sverdlovsk
6…e6 — 20.0% (222 parties)
1966 — Bebchuk, Evgeni vs Kimelfeld, Rudolf — 1-0 — Moscow RUS
1967 — Panov, Vladimir vs Popov, Luben — 0-1 — Skopje MKD
1972 — Anay Barche vs Velimirovic, Dragoljub — 0-1 — Zagreb CRO
1975 — Caballero Lopez, Jaime vs Redolfi, Argentino Rodolfo — 0-1 — CADAP II ol APA.VII/102
1985 — Otero Martin, Enrique vs Garcia Del Campo, Luis Alberto — 1-0 — Valladolid
6…Nf6 — 18.4% (204 parties)
1957 — Petrosian, Tigran V. vs Nezhmetdinov, Rashid — 1/2-1/2 — Kiev UKR
1962 — Anay Barche vs Ignatiev, Felix N — 1/2-1/2 — Moscow RUS
1962 — VinjeGulbrandsen, A. vs Aadhav Saravanan Kanchi — 1/2-1/2 — Varna BUL
1962 — Panov, Vladimir vs Ankerst, Mihael — 1/2-1/2 — Vrnjacka Banja SRB
1963 — Damjanovic, Mato vs Velimirovic, Dragoljub — 1/2-1/2 — Zenica ch YUG
6…Bd7 — 6.1% (68 parties)
1961 — Botez, Constantin vs Gheorghiu, Florin — 1/2-1/2 — Romania
1961 — Radulescu, Mihai vs Octaviano, Patrick Matheus — 1/2-1/2 — Romania
1962 — Gawlikowski, Stanislaw vs Forintos, Gyozo V — 0-1 — Budapest HUN
1963 — Bukhover, Alik vs Kapengut, Albert — 1-0 — Soviet Union
1963 — Pedersen, Eigil vs Franco, Sigifredo — 1-0 — Odense DEN

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