A38p — English: Symmetrical, Main Line, 7.d3 d6 8.Bd2

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d3 d6 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, d5 et g5, un fou actif en d2 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et 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, g4, e5 et f5, un avant-poste en d4 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. ...Bg4 (Développer Bc8, clouer Nf3) ; ...d5 (Rupture) ; ...e6 (Rupture) ; ...e5 (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	● d6→c5, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v1), ● f4 (2v0), ● b5 (2v0), ● d5 (2v1), ● g5 (2v0)	● b4 (2v0), ● d4 (2v1), ● g4 (2v0), ● e5 (2v1), ● f5 (2v0)
Cases faibles	—	—
Centre	● d5 (2v1), ● e4 (2v1)	● d4 (2v1), ● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bd2	● Bd2 Actif (mob. 6)
Bg2	● Bg2 Enfermé (mob. 2)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
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	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1920 Gothenburg-B – Round 1 – Carls, Carl – 1-0 – Bergdahl Larsson, Rasmus – G1 1. c4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. d3 Bg7 6. Nf3 Nf6 7. O-O O-O 8. Bd2 Bd7 9. Nd5 e6 10. Nxf6+ Bxf6
1924 Buenos Aires – Round 18 – Reti, Richard – 0-1 – Guerra Boneo – G32 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. Nc3 Nc6 6. O-O O-O 7. d3 d6 8. Bd2 h6 9. Rb1 Qd7 10. a3 b6
1925 Bratislava-A – Round 7 – Rasovsky, Josef – 1/2-1/2 – Thelen, Bedrich – G11 1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. O-O Nc6 6. Nc3 O-O 7. d3 d6 8. Bd2 h6 9. a3 Bd7 10. Qc2 Qc8
1943 Zlin – Round 12 – Prucha, Karel – 1/2-1/2 – Petrik, Timofei – G70 1. c4 c5 2. Nc3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 Nf6 6. O-O d6 7. d3 O-O 8. Bd2 a6 9. Qc1 Bg4 10. h3 Bd7
1953 NRW Ch – Round 1 – Werner, Stephan – 1/2-1/2 – Wieckowiak, Hans – G2 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 c5 5. Nc3 Nc6 6. O-O O-O 7. d3 d6 8. Bd2 h6 9. Qc1 Kh7 10. Rb1 Be6
1955 Hungary Ch – Round 1 – Sandor, Balazs – 1/2-1/2 – Bilek, Istvan – G68 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. Nc3 c5 7. d3 Nc6 8. Bd2 Bd7 9. Qc1 Qc8 10. Bh6 Bh3
1955 Ljubljana – Round 9 – Grosek, Branko – 1/2-1/2 – Bertok, Mario Jr. – G79 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 Nf6 6. O-O O-O 7. d3 d6 8. Bd2 Rb8 9. Qc1 a6 10. Bh6 b5
1956 Mar del Plata ARG – Round 1 – San Martin Sanguinetti, Vicente – 1/2-1/2 – Behrensen, Jorge – G1 1. c4 Nf6 2. g3 c5 3. Bg2 g6 4. Nc3 Nc6 5. Nf3 Bg7 6. O-O O-O 7. d3 d6 8. Bd2 Rb8 9. a3 a6 10. Rb1 b5
1958 HUN Ch 13th – Round 2 – Portisch, Lajos – 1/2-1/2 – Bilek, Istvan – G11 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d3 d6 6. Nf3 c5 7. O-O Nc6 8. Bd2 Bd7 9. Rb1 Ne8 10. Ne1 Nc7
1958 HUN Ch Budapest HUN – Round 17 – Bilek, Istvan – 1/2-1/2 – Honfi, Karoly – G90 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O g6 5. d3 Bg7 6. c4 O-O 7. Nc3 d6 8. Bd2 Bd7 9. a3 Qc8 10. Rb1 Bh3
1961 Bled – Round 1 – Udovcic, Mijo – 0-1 – Parma, Bruno – G1 1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nf3 Bg7 5. O-O d6 6. Nc3 Nf6 7. d3 O-O 8. Bd2 a6 9. a3 Rb8 10. Ne1 Bd7
1962 Leningrad – Round 1 – Flesch, Janos – 1-0 – Gandarias Geller, Marcos – G32 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d3 d6 8. Bd2 a6 9. Ne1 Rb8 10. Nc2 Bd7
1962 Mar del Plata – Round 5 – Guimard, Carlos E – 1/2-1/2 – Panno, Oscar – G51 1. Nf3 c5 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nc6 7. d3 d6 8. Bd2 h6 9. h3 Rb8 10. Nd5 Ne8
1962 Poznan ch POL – Round 14 – Doda, Zbigniew – 1/2-1/2 – Schmidt, Wlodzimierz – G89 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O c5 7. d3 Nc6 8. Bd2 Ne8 9. Ne1 Nc7 10. Nc2 Bd7
1962 WT/M/945 – Round ? – Ddamulira Luke – 0-1 – Tiemann, Christoph – G14 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d3 c5 7. Nc3 Nc6 8. Bd2 Rb8 9. Qc1 Re8 10. Bh6 Bh8
1963 LAT Ch – Round ? – Zilber, Israel – 1-0 – Zdanovs, Igors – G73 1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nc6 7. d3 d6 8. Bd2 Bg4 9. h3 Bd7 10. Qc1 Nd4
1964 Hoogovens – Round 1 – Flesch, Jean-benoit – 1/2-1/2 – Sandor, Balazs – G49 1. g3 g6 2. Bg2 Bg7 3. Nf3 Nf6 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d3 d6 8. Bd2 Bd7 9. Ne1 Ne8 10. a3 a5
1964 Zagreb – Round 1 – Udovcic, Mijo – 1/2-1/2 – Parma, Bruno – G6 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. c4 Nf6 6. Nc3 O-O 7. d3 d6 8. Bd2 Bd7 9. a3 Ne8 10. Rb1 a5
1966 Buenos Aires ch-ARG – Round 1 – Behrensen, Jorge – 1-0 – Chemes, Luis – G11 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c5 6. Nc3 Nc6 7. d3 d6 8. Bd2 e5 9. Rb1 a5 10. Ne1 Re8
1966 Harrachov U26 – Round 4 – Kubicek, Antonin – 1-0 – Augustin, Josef – G16 1. Nf3 Nf6 2. g3 c5 3. Bg2 g6 4. O-O Bg7 5. c4 O-O 6. Nc3 Nc6 7. d3 d6 8. Bd2 e5 9. e3 h6 10. Nd5 Nxd5
1966 Havana – Round 1 – Roux Cabral, Luis – 0-1 – Yepez, Olavo – G2 1. d3 g6 2. g3 Bg7 3. Bg2 c5 4. Nf3 Nc6 5. c4 d6 6. Nc3 Nf6 7. Bd2 O-O 8. O-O a6 9. h3 Rb8 10. a4 h6
1969 Castlebar Open – Round 6 – Brinck-Claussen, Bjorn – 1-0 – Grabow, Pouelsten Holm – G21 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d3 d6 8. Bd2 Bd7 9. a3 Qc8 10. Rb1 Bh3
1969 Schwerin – Round 1 – Schoeneberg, Manfred – 1/2-1/2 – Pietzsch, Wolfgang – G3 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c5 6. O-O Nc6 7. d3 d6 8. Bd2 h6 9. a3 Be6 10. Rb1 Qd7

A38p —

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d3 d6 8.Bd2

Eval: [+0.00]

Les coups candidats

8…Bd7 — 32.6% (259 parties)

Ambassadeurs : Seres, Lajos (7x), Bilek, Istvan (5x), Vautrin, Stefan (3x), Sandor, Balazs (2x), Mariotti, Sergio (2x), Carls, Carl (1x), Bergdahl Larsson, Rasmus (1x), Ljubojevic, Ljubomir (1x)

8…Rb8 — 19.0% (151 parties)

Ambassadeurs : Fell, Lloyd S (1x), Hamilton, Douglas G (1x), San Martin Sanguinetti, Vicente (1x), Behrensen, Jorge (1x), Arnstam, Knut (1x), Akvist, Hakan (1x), Stoliar, Efim Samoilovich (1x), Kotkov, Yuri M (1x)

8…a6 — 15.5% (123 parties)

Ambassadeurs : Yepez, Olavo (2x), Flesch, Janos (2x), Prucha, Karel (1x), Petrik, Timofei (1x), Malcsev, Aleksander (1x), Kalnins, Aleksandrs Alans (1x), Seitz, Jakob Adolf (1x), Castaldi, Vincenzo (1x)

8…Bg4 — 9.8% (78 parties)

Ambassadeurs : Romanovsky, Pjotr (1x), Ostrovsky, Pavel (1x), Cafferty, Bernard (1x), Alles, C (1x), Zilber, Israel (1x), Zdanovs, Igors (1x), Rubio Purrinos, Hugo (1x), Hernandez Onna, Roman (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…Bd7	8…Rb8	8…a6	8…Bg4
<1800	53	30%	21%	25%	8%
1800-2200	334	30%	21%	14%	13%
2200-2600	138	43%	17%	14%	4%
2600+	2	—	—	50%	—

Évolution par décennie (% des parties)

Décennie	N parties	8…Bd7	8…Rb8	8…a6	8…Bg4
1920s	5	20%	—	—	20%
1930s	2	—	—	100%	—
1940s	1	—	—	100%	—
1950s	15	27%	27%	7%	—
1960s	28	29%	14%	18%	7%
1970s	21	43%	19%	5%	5%
1980s	30	37%	13%	17%	3%
1990s	155	35%	18%	12%	12%
2000s	253	31%	22%	14%	13%
2010s	250	33%	18%	19%	8%
2020s	34	32%	21%	15%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…Bd7	33%	32%	-0.4%
8…Rb8	18%	21%	▲ +2.6%
8…a6	19%	15%	▼ -4.5%
8…Bg4	8%	3%	▼ -4.7%

Parties historiques

8…Bd7 — 32.6% (259 parties)

1920 — Carls, Carl vs Bergdahl Larsson, Rasmus — 1-0 — Goteborg SWE
1955 — Sandor, Balazs vs Bilek, Istvan — 1/2-1/2 — Budapest HUN
1957 — Pilnik, Herman vs Palsson, Jon Gunnar — 1-0 — Hafnarfirdi
1958 — Portisch, Lajos vs Bilek, Istvan — 1/2-1/2 — Budapest HUN
1958 — Bilek, Istvan vs Honfi, Karoly — 1/2-1/2 — HUN-ch Budapest HUN

8…Rb8 — 19.0% (151 parties)

1955 — Grosek, Branko vs Bertok, Mario Jr. — 1/2-1/2 — Ljubljana
1956 — San Martin Sanguinetti, Vicente vs Behrensen, Jorge — 1/2-1/2 — Mar del Plata ARG
1956 — Stoliar, Efim Samoilovich vs Kotkov, Yuri M — 0-1 — Kislovodsk
1956 — Lombardy vs Evans, Larry — 1/2-1/2 — Metropolitan League
1962 — Ddamulira Luke vs Tiemann, Christoph — 0-1 — WT/M/945

8…a6 — 15.5% (123 parties)

1936 — Malcsev, Aleksander vs Kalnins, Aleksandrs Alans — 0-1 — Munich GER
1938 — Seitz, Jakob Adolf vs Castaldi, Vincenzo — 0-1 — Milan ITA
1943 — Prucha, Karel vs Petrik, Timofei — 1/2-1/2 — Zlin CZE
1957 — Muehlberg, Siegfried vs Ujtelky, Maximilian — 1-0 — Dresden GER
1961 — Udovcic, Mijo vs Parma, Bruno — 0-1 — Bled SLO

8…Bg4 — 9.8% (78 parties)

1926 — Romanovsky, Pjotr vs Ostrovsky, Pavel — 1-0 — Leningrad RUS
1961 — Cafferty, Bernard vs Alles, C — 1-0 — Hastings ENG
1963 — Zilber, Israel vs Zdanovs, Igors — 1-0 — Riga LAT
1978 — Kosny, Marek vs Koziarski, Andrzej — 0-1 — Warsaw POL
1988 — Rubio Purrinos, Hugo vs Hernandez Onna, Roman — 0-1 — Corte Ingles

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