A77e — Benoni: Classical, Main Line, 10.Nd2 Nbd7 11.a4 a6

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Nbd7 11.a4 a6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte c4, case forte d5, Be2 actif, paire de fous, colonne c.
Faiblesses adverses : arriérés d6, b7, f7, Bc8 enfermé.
Problèmes : Bc1 enfermé, arriéré b2.
Plans :
● Bg5 — Clouer Nf6
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), case forte c5, case forte e5, avant-poste e5(C), paire de fous, colonne e.
Faiblesses adverses : arriéré b2, Bc1 enfermé.
Problèmes : Bc8 enfermé, arriérés d6, b7, f7.
Plans :
● ...Bf5 — Développer Bc8
● ...c4 — Rupture
● ...Re — Tour sur colonne e

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A77e — Classical Main Line

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Nbd7 11.a4 a6

Eval: [+0.83]

Les coups candidats

12.Qc2 — 31.0% (577 parties) →

Ambassadeurs : Guliev, Sarhan (4x), Hartoch, Robert G (3x), Velimirovic, Dragoljub (3x), Moody, David W (3x), Ogaard, Leif (3x), Huss, Andreas (3x), Haik, Aldo (3x), Darga, Klaus (2x)

12.f4 — 26.7% (497 parties)

Ambassadeurs : Farago, Ivan (10x), Tregubov, Pavel V. (4x), Baburin, Alexander (4x), Eros, Pal (3x), Parkanyi, Attila (3x), Degterev, Pavel (3x), Quintin Navarro, Alberto (3x), Radev, Nikolai (2x)

12.Re1 — 11.1% (207 parties)

Ambassadeurs : Yanayt, Eugene (4x), Campelli, Cris (3x), Schweda, Roland (3x), Gyimesi, Zoltan (3x), Sumets, Andrey (3x), Rossetto, Hector (2x), de Wall, Robert (2x), Akesson, Ralf (2x)

12.Ra3 — 10.3% (192 parties) →

Ambassadeurs : Horvath, Peter (5x), Bagirov, Vladimir (4x), Toth, Bela (3x), Velimirovic, Dragoljub (3x), Petrosian, Tigran V. (3x), Lutikov, Anatoly S (3x), De Boer, Gert-Jan (3x), Sygulski, Artur (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12.Qc2	12.f4	12.Re1	12.Ra3
<1800	29	28%	31%	7%	14%
1800-2200	568	32%	27%	11%	7%
2200-2600	901	30%	24%	13%	13%
2600+	23	26%	22%	26%	17%

Évolution par décennie (% des parties)

Décennie	N parties	12.Qc2	12.f4	12.Re1	12.Ra3
1950s	12	50%	25%	17%	—
1960s	15	20%	40%	13%	—
1970s	95	29%	21%	3%	16%
1980s	234	33%	25%	7%	18%
1990s	265	31%	29%	11%	10%
2000s	461	33%	33%	8%	8%
2010s	592	30%	27%	12%	9%
2020s	190	24%	9%	24%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12.Qc2	30%	24%	▼ -6.7%
12.f4	27%	9%	▼ -18.4%
12.Re1	12%	24%	▲ +11.7%
12.Ra3	9%	8%	▼ -1.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties
Euwe, Max — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

12.Qc2 — 31.0% (577 parties)

1953 — Petrosian, Tigran V. vs Tolush, Alexander V — 1/2-1/2 — Garga
1955 — Darga, Klaus vs Fuller, Maxwell L — 1/2-1/2 — Hastings ENG
1955 — Darga, Klaus vs Fuller, Jack — 1/2-1/2 — Hastings ENG
1955 — Schweber, Samuel vs Johannessen, Svein — 0-1 — Antwerp BEL
1955 — Scheipl, Ralf vs Hantke, R. — 1/2-1/2 — Hoechst ch-GER

12.f4 — 26.7% (497 parties)

1954 — Furman, Slavomir vs Dommes, Thibault — 1-0 — Leningrad RUS
1954 — Kluger, Carsten vs Kholmov, Nikita Vit — 1/2-1/2 — Bucharest ROU
1955 — Maderna, Carlos vs Palermo, Vicente — 1-0 — Buenos Aires ARG
1960 — Weinstein, Raymond vs Radev, Nikolai — 1/2-1/2 — Leningrad RUS
1960 — Radev, Nikolai vs Maedler, Juergen, Dr. — 0-1 — Leningrad RUS

12.Re1 — 11.1% (207 parties)

1955 — Panno, Oscar vs Rossetto, Hector — 0-1 — Buenos Aires ARG
1955 — Guimard, Carlos E vs Rossetto, Hector — 1/2-1/2 — Buenos Aires ARG
1961 — Germek, Milan vs Bertok, Mario Jr. — 1/2-1/2 — Bled SLO
1964 — Sapi, Laszlo vs Hajtun, Jozsef — 1/2-1/2 — Budapest ch-HUN
1971 — Donner, Jan-Hein vs Velimirovic, Dragoljub — 1-0 — Havana Cap-mem

12.Ra3 — 10.3% (192 parties)

1976 — Petrosian, Tigran V. vs Quinteros, Miguel A. — 1-0 — Lone Pine, CA USA
1977 — Toth, Bela vs Vaganian, Rafael A — 1/2-1/2 — Rome Rome ITA
1977 — Cardon, Helmut vs Supancic, Darko — 0-1 — Eeklo
1977 — Ohlin, Jan vs Hagstrom, Allan — 1/2-1/2 — corr SWE/K
1978 — Bagirov, Vladimir vs Szabo, Laszlo — 1/2-1/2 — Budapest HUN

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	● b2	● d6, ● b7, ● f7
Chaînes	● e4→d5	● d6→c5, b7→a6, f7→g6, h7→g6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● c4 (2v0), ● d5 (2v1)	● c5 (2v0), ● e5 (3v0)
Cases faibles	● e4	—
Centre	● d5 (2v1)	● d4 (1v0), ● e5 (3v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Be2	● Be2 Actif (mob. 7)
Bg7		● Bg7 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	2 (c8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● e4-e5, ● f2-f3	● …c5-c4

Partie
1954 Leningrad RUS – Round 1 – Furman, Slavomir – 1-0 – Dommes, Thibault – G2 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 a6 8. a4 Nbd7 9. e4 Bg7 10. Be2 O-O
1955 Argentina – Round 18 – Maderna, Carlos – 1-0 – Palermo, Vicente – G126 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. Nd2 Nbd7 10. O-O a6
1955 Buenos Aires CA – Round 6 – Panno, Oscar – 0-1 – Rossetto, Hector – G39 1. c4 Nf6 2. d4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 a6
1955 Buenos Aires CA – Round 8 – Guimard, Carlos E – 1/2-1/2 – Rossetto, Hector – G55 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. Nf3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 a6
1960 Budapest zt – Round 5 – Ahman Ernst – 0-1 – Van Scheltinga, Theo – G29 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 a6
1960 Leningrad tt – Round 15 – Weinstein, Raymond – 1/2-1/2 – Radev, Nikolai – G204 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 a6 8. a4 Nbd7 9. e4 Bg7 10. Be2 O-O
1960 Leningrad tt – Round 9 – Radev, Nikolai – 0-1 – Maedler, Juergen, Dr. – G112 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. Be2 O-O 7. Nf3 e6 8. O-O exd5 9. cxd5 Re8 10. Nd2 a6
1961 Bled – Round 1 – Germek, Milan – 1/2-1/2 – Bertok, Mario Jr. – G10 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 a6 9. a4 O-O 10. O-O Re8
1964 Budapest ch-HUN – Round 1 – Sapi, Laszlo – 1/2-1/2 – Hajtun, Jozsef – G43 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 a6
1968 Lugano ol (Men) – Round 1 – Brinck-Claussen, Bjorn – 0-1 – Pietzsch, Wolfgang – G15 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Be2 O-O 7. Nf3 e6 8. O-O exd5 9. cxd5 Re8 10. Nd2 a6
1968 Lugano ol (Men) fin-C – Round 1 – Durao, Joaquim – 1-0 – Le Donne, Patrick – G2 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 e6 5. e4 exd5 6. cxd5 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O a6 10. a4 Re8
1968 Lugano olm - Round 1 - Belkadi, Ridha - 0-1 - Giustolisi, Alberto - G86 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 a6
Amber-blindfold 19th 2010 – Round 4 – Ponomariov, Ruslan – 1/2-1/2 – Gashimov, Vugar – G8 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. Nd2 Bg7 8. e4 O-O 9. Be2 Re8 10. O-O a6
Milaan 1975 – Round 2 – Larsen, Bent – 0-1 – Ljubojevic, Ljubomir – G6 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 g6 6. Nf3 Bg7 7. e4 d6 8. Be2 O-O 9. Nd2 Re8 10. O-O Nbd7
Moscow Interzonal 1982 – Round 1 – Beliavsky, Alexander G – 1-0 – Velimirovic, Dragoljub – G1 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 a6
World Blitz 2015 – Round 4.19 – Navara, David – 0-1 – Akopian, Vladimir – G221 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Nbd7 8. e4 a6 9. a4 Bg7 10. Be2 O-O
World Blitz 2019 – Round 4.52 – Postny, Evgeny – 0-1 – Yilmaz, Mustafa – G276 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. Nd2 Nbd7 8. e4 Bg7 9. Be2 O-O 10. O-O a6

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