A37p — English: Symmetrical, 5.Nf3 e6 6.O-O Nge7 7.d3 O-O 8.Bd2

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.O-O Nge7 7.d3 O-O 8.Bd2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes e4, f4, b5 et g5, un avant-poste en e4, un fou actif en d2 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

Plans. h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur les cases fortes b4, d4, e5 et f5, un avant-poste en d4, un fou actif en g7 et la paire de fous.

Côté adverse. Le fou enfermé en g2.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...d6 (Libérer Bc8) ; ...Bg4 (Clouer Nf3) ; ...d5 (Rupture) ; ...e5 (Rupture) ; ...f6 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● e2→d3, f2→g3, h2→g3, d3→c4	● d7→e6, f7→e6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v0), ● f4 (2v0), ● b5 (2v0), ● g5 (2v0)	● b4 (2v0), ● d4 (3v1), ● e5 (2v1), ● f5 (3v0)
Cases faibles	—	—
Centre	● e4 (2v0)	● d4 (3v1), ● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bd2	● Bd2 Actif (mob. 6)
Bg2	● Bg2 Enfermé (mob. 2)
Bg7		● Bg7 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d3-d4, ● e2-e3	● …d7-d6, ● …d7-d5, ● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
1957 URS Ch, semi final – Round 11 – Kholmov, Ratmir D – 1/2-1/2 – Korchnoi, Viktor – G110 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 h6 9. e4 d6 10. Be3 Nd4
1957 Wageningen zt – Round 10 – Uhlmann, Wolfgang – 1/2-1/2 – Trifunovic, Petar – G27 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. a3 Bb7 10. Rb1 a5
1958 WchT U26 fin-A 05th – Round 7 – Kozma, Julius – 1/2-1/2 – Forintos, Gyozo V – G69 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nf3 Nc6 5. Nc3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 h6 9. a3 d5 10. Rb1 dxc4
1959 HUN Ch Budapest HUN – Round 13 – Orendy, Emil – 1-0 – Forintos, Gyozo V – G53 1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. c4 Nc6 5. Nc3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 h6 9. a3 b6 10. Qc1 Kh7
1961 CAN Ch – Round 4 – Danilov, George – 0-1 – Vranesic, Zvonko – G11 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O e6 6. d3 Nge7 7. Nc3 O-O 8. Bd2 a6 9. Rb1 Rb8 10. a4 b6
1962 Mar del Plata – Round 1 – Eliskases, Erich – 1-0 – Bielicki, Carlos – G19 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. c4 e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 h6 9. Rb1 e5 10. a3 a5
1964 Tel Aviv olm prel – Round 1 – Doda, Zbigniew – 1/2-1/2 – Reshevsky, Samuel – G37 1. Nf3 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nc3 e6 6. d3 Nge7 7. O-O O-O 8. Bd2 h6 9. a3 d5 10. Rb1 dxc4
1965 Hamburg etc – Round 1 – Flesch, Jean-benoit – 1/2-1/2 – ? – G51 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. cxd5 exd5 10. Qc1 Re8
1966 CSR Ch Int – Round 9 – Hort, Vlastimil – 1/2-1/2 – Abramovich Furman, Semyon – G14 1. c4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 a6 9. Qc1 Nf5 10. Bg5 f6
1966 Harrachov – Round 1 – Hort, Vlastimil – 1/2-1/2 – Furman, Slavomir – G1 1. c4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 a6 9. Qc1 Nf5 10. Bg5 f6
1966 Hungary – Round 1 – Pogats, Jozsef Jr. – 1/2-1/2 – Dely, Peter – G34 1. Nf3 c5 2. g3 Nc6 3. c4 g6 4. Bg2 Bg7 5. Nc3 e6 6. d3 Nge7 7. O-O O-O 8. Bd2 b6 9. a3 d5 10. Rb1 1/2-1/2
1966 Kecskemet Laszlo Toth Memorial – Round 1 – Simagin, Vladimir – 1/2-1/2 – Bilek, Istvan – G5 1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. c4 Nc6 5. Nc3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. Rb1 b6 10. a3 Bb7
1966 La Habana olm prel – Round 3 – Garcia Rodriguez, Raimundo – 1/2-1/2 – Keene, Raymond D – G45 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. a3 Bb7 10. Rb1 d6
1966 Zinnowitz GER – Round 13 – Liebert, Heinz – 1/2-1/2 – Moehring, Guenther – G24 1. c4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. a3 d5 10. Rb1 dxc4
1967 CSR Ch – Round 3 – Kubicek, Antonin – 0-1 – Smejkal, Jan – G15 1. c4 c5 2. Nc3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. cxd5 Nxd5 10. Qc1 b6
1967 Harrachov – Round 1 – Smejkal, Jakub – 1/2-1/2 – Keene, Raymond D – G1 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. Rb1 Bb7 10. a3 a5
1967 Maribor – Round 2 – Reshevsky, Samuel – 1/2-1/2 – Ivkov, Borislav – G19 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 b6 9. Qc1 Bb7 10. Bh6 Bxh6
1967 Sousse Interzonal – Round 14 – Cuellar Alpire, Mariana – 0-1 – Bilek, Istvan – G125 1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nf3 Nc6 5. Nc3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. a3 Bb7 10. Rb1 d5
1967 Zinnowitz – Round 1 – Bukic, Enver – 1/2-1/2 – Malich, Burkhard, Dr. – G18 1. Nf3 c5 2. c4 g6 3. Nc3 Bg7 4. g3 Nc6 5. Bg2 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. Qc1 b6 10. cxd5 exd5
1967 Zinnowitz – Round 1 – Golz, Werner – 1/2-1/2 – Neukirch, Detlef – G20 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. Qc1 b6 10. Rb1 Bb7
1968 Capablanca Memorial – Round 1 – Rodriguez Gonzales, Angie Kelly – 0-1 – Ostojic, Predrag – G71 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 e6 6. d3 Nge7 7. O-O O-O 8. Bd2 d5 9. Rb1 b6 10. a3 Bb7
1968 Capablanca Memorial – Round 1 – Suetin, Alexey S – 1/2-1/2 – Kholmov, Ratmir D – G1 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. a3 Bb7 10. Rb1 d5
1968 Lugano – Round 1 – Padevsky, Nikola – 1-0 – Smejkal, Jakub – G2 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. d3 Nge7 7. O-O O-O 8. Bd2 d5 9. Qc1 b6 10. Bh6 d4
1968 Lugano ol (Men) qual-B – Round 1 – Byrne, David – 1-0 – Shaw, Terrey I – G8 1. g3 g6 2. Bg2 Bg7 3. c4 c5 4. Nc3 Nc6 5. d3 e6 6. Nf3 Nge7 7. O-O O-O 8. Bd2 Rb8 9. Qc1 Re8 10. Ne4 d6
1968 Lugano ol (Men) qual-G – Round 5 – Padevsky, Nikola – 1-0 – Smejkal, Jan – G23 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. d3 Nge7 7. O-O O-O 8. Bd2 d5 9. Qc1 b6 10. Bh6 d4
1968 Lugano olm - Round 1 - Simon Cobo, Enrique - 0-1 - Keene, Raymond D - G464 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 a6 9. Rb1 Rb8 10. a4 h6
1968 Olympiad Final A – Round 13 – Larsen, Benjamin Holsko – 1/2-1/2 – Gheorghiu, Florin – G24 1. Nf3 g6 2. c4 c5 3. Nc3 Bg7 4. g3 Nc6 5. Bg2 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. cxd5 Nxd5 10. Qc1 b6
1968 Palma de Mallorca – Round 13 – Byrne, Donald – 1/2-1/2 – Gheorghiu, Florin – G115 1. c4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. d3 e6 6. Nf3 Nge7 7. O-O O-O 8. Bd2 d5 9. cxd5 Nxd5 10. Rc1 b6
1968 Reykjavik – Round 1 – Addison, Wiliam G – 0-1 – Byrne, Ray – G76 1. Nf3 g6 2. g3 Bg7 3. Bg2 c5 4. O-O Nc6 5. c4 e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 h6 9. Rb1 b6 10. a3 Bb7
1968 Southend – Round 1 – Andy Zane Wright – 1/2-1/2 – Basman, Michael J – G21 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. c4 e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 h6 9. Rb1 d5 10. a3 Nf5
1969 Leningrad – Round 1 – Blechzin, Igor – 0-1 – Faibisovich, Vadim Z – G15 1. g3 g6 2. Bg2 Bg7 3. Nf3 c5 4. O-O Nc6 5. c4 e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 d5 9. b3 b6 10. Qc1 Re8
1970 Belgrade URS-World – Round 2.2 – Petrosian, Tigran V. – 0-1 – Fischer, Robert James Jamesames – G5 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. a3 b6 10. Rb1 Bb7
1972 Skopje ol (Men) fin-A – Round 5 – Pfleger, Helmut, Dr. – 1/2-1/2 – Bednarski, Jacek B – G384 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 d5 9. Qc1 b6 10. Rd1 Bb7
1973 Leningrad Interzonal – Round 12 – Larsen, Bent – 0-1 – Tal, Mihail – G18 1. c4 g6 2. Nc3 Bg7 3. Nf3 c5 4. g3 Nc6 5. Bg2 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 d5 9. Qc1 b6 10. Bh6 Bb7
1975 Portoroz/Ljubljana – Round 8 – Osterman, Rudolf – 0-1 – Ribli, Zoltan – G108 1. Nf3 g6 2. c4 Bg7 3. Nc3 c5 4. g3 Nc6 5. Bg2 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. Qc1 d5 10. cxd5 exd5
Linares 1989 – Round 1 – Ljubojevic, Ljubomir – 1-0 – Gulko, Boris – G5 1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nf3 Nc6 5. O-O e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 d5 9. a3 b6 10. Rb1 Bb7
Lone Pine Open 1978 – Round 7 – Larsen, Bent – 1/2-1/2 – Polugaevsky, Lev – G25 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. O-O Nge7 7. d3 O-O 8. Bd2 b6 9. Qc1 Bb7 10. Bg5 d5

A37p — Symmetrical

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.O-O Nge7 7.d3 O-O 8.Bd2

Eval: [-0.24]

Les coups candidats

8…d5 — 55.0% (412 parties)

Ambassadeurs : Koehler, Josef (7x), Morihama, Nicolau (5x), Sermek, Drazen (4x), Padevsky, Nikola (3x), Lomsadze, Davit (3x), Smejkal, Jan (2x), Gheorghiu, Florin (2x), Kolarov, Atanas Stefanov (2x)

8…b6 — 27.6% (207 parties)

Ambassadeurs : Gheorghiu, Florin (4x), Uhlmann, Wolfgang (3x), Keene, Raymond D (3x), Sznapik, Aleksander (3x), Urpilainen, Erkki (3x), Bilek, Istvan (2x), Moehring, Guenther (2x), Schneider, Attila (2x)

8…h6 — 6.0% (45 parties)

Ambassadeurs : Forintos, Gyozo V (2x), Kholmov, Ratmir D (1x), Korchnoi, Viktor (1x), Kozma, Julius (1x), Naranja, Renato (1x), Aguilar, Susano (1x), Smyslov, Vladimir (1x), Geller, Efim P. (1x)

8…d6 — 5.6% (42 parties)

Ambassadeurs : Ornstein, Axel (2x), Juric, Slaven (2x), Sharpe, Ian W (1x), Christiansen Hjalmar (1x), Schneider, Bernd (1x), Razlag Franz (1x), Marfia James (1x), Kebrdle, Michael (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…d5	8…b6	8…h6	8…d6
<1800	13	62%	15%	—	8%
1800-2200	221	61%	24%	4%	6%
2200-2600	354	52%	33%	6%	5%
2600+	11	45%	45%	—	9%

Évolution par décennie (% des parties)

Décennie	N parties	8…d5	8…b6	8…h6	8…d6
1950s	4	—	25%	75%	—
1960s	37	38%	22%	22%	3%
1970s	68	47%	38%	3%	7%
1980s	47	57%	28%	4%	4%
1990s	128	52%	30%	5%	5%
2000s	158	53%	26%	8%	8%
2010s	278	61%	25%	4%	5%
2020s	29	62%	34%	—	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…d5	61%	62%	▲ +0.9%
8…b6	25%	34%	▲ +9.7%
8…h6	4%	0%	▼ -4.3%
8…d6	5%	3%	▼ -1.6%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 1 partie
Tal, Mikhail — 1 partie
Carlsen, Magnus — 1 partie
Anand, Viswanathan — 1 partie

Parties historiques

8…d5 — 55.0% (412 parties)

1963 — Bianco Esposito, Antonio vs Aguayo Cruz, Ramon Uriel — 0-1 — Buenos Aires ARG
1965 — Flesch, Jean-benoit vs ? — 1/2-1/2 — Hamburg etc
1966 — Simagin, Vladimir vs Bilek, Istvan — 1/2-1/2 — Kecskemet HUN
1966 — Kolarov, Atanas Stefanov vs Malich, Burkhard, Dr. — 1/2-1/2 — Havana CUB
1967 — Kubicek, Antonin vs Smejkal, Jan — 0-1 — Bratislava SVK

8…b6 — 27.6% (207 parties)

1957 — Uhlmann, Wolfgang vs Trifunovic, Petar — 1/2-1/2 — Wageningen NED
1960 — Bilek, Istvan vs Mst Raisa, Rahman — 1-0 — Budapest HUN
1966 — Liebert, Heinz vs Moehring, Guenther — 1/2-1/2 — Zinnowitz GER
1966 — Garcia Rodriguez, Raimundo vs Keene, Raymond D — 1/2-1/2 — La Habana olm prel
1966 — Pogats, Jozsef Jr. vs Dely, Peter — 1/2-1/2 — Budapest HUN

8…h6 — 6.0% (45 parties)

1957 — Kholmov, Ratmir D vs Korchnoi, Viktor — 1/2-1/2 — Sverdlovsk
1958 — Kozma, Julius vs Forintos, Gyozo V — 1/2-1/2 — Varna BUL
1959 — Orendy, Emil vs Forintos, Gyozo V — 1-0 — HUN-ch Budapest HUN
1962 — Eliskases, Erich vs Bielicki, Carlos — 1-0 — Mar del Plata ARG
1964 — Doda, Zbigniew vs Reshevsky, Samuel — 1/2-1/2 — Tel Aviv ISR

8…d6 — 5.6% (42 parties)

1969 — Sharpe, Ian W vs Christiansen Hjalmar — 1-0 — ?
1972 — Balshan, Amikam vs Markland, Peter R — 1/2-1/2 — Skopje MKD
1973 — Ljungdahl, John vs Ornstein, Axel — 0-1 — Bollnas
1974 — Zwaig, Arne vs Ornstein, Axel — 0-1 — Norway
1975 — Taimanov, Mark vs Tseshkovsky, Vitaly — 1/2-1/2 — Olympiad URS

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