A43y — Old Benoni: Schmidt, 6.Be2 O-O 7.O-O Na6

1.d4 c5 2.d5 d6 3.e4 Nf6 4.Nc3 g6 5.Nf3 Bg7 6.Be2 O-O 7.O-O Na6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte b5….

Atouts. Les Blancs s'appuient sur les cases fortes b5 et g5, un fou actif en e2 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte b4….

Atouts. Les Noirs s'appuient sur les cases fortes b4 et g4 et la paire de fous.

Côté adverse. Le fou enfermé en c1 et un mauvais fou en e2.

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

Plans. ...Bg4 (Développer Bc8, clouer Nf3) ; ...c4 (Rupture) ; ...e6 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● e4→d5	● d6→c5, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● g5 (2v0)	● b4 (2v0), ● g4 (2v0)
Cases faibles	—	● d5
Centre	● d4 (2v1), ● d5 (3v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Actif (mob. 4)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
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	● …c5-c4, ● …e7-e6, ● …e7-e5

Partie
1952 Helsinki olm – Round 1 – Smyslov, Vladimir – 1-0 – Schmid, Leo – G13 1. d4 c5 2. d5 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 Nf6 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 b6 10. Nc4 Ba6
1953 Zagreb – Round 2 – Nedeljkovic, Srecko M – 1/2-1/2 – Fuderer, Andrija – G33 1. d4 c5 2. d5 d6 3. e4 Nf6 4. Nc3 g6 5. Be2 Bg7 6. Nf3 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 e6 10. Nc4 Nfe8
1954 Amsterdam olm – Round 1 – Johansson, Ingemar 1966 – 1/2-1/2 – Fuderer, Andrija – G7 1. d4 c5 2. d5 d6 3. e4 Nf6 4. Nc3 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 b6 10. Nc4 Ba6
1954 Munich zt Munich GER – Round 18 – Rabar, Braslav – 1-0 – Lehmann, Karl-Heinz – G11 1. d4 c5 2. d5 d6 3. e4 g6 4. Nc3 Bg7 5. Nf3 Nf6 6. Be2 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 Rb8 10. Nd2 b6
1955 JUG Ch – Round 1 – Vospernik, Zdravko – 0-1 – Gligorić, Svetozar – G1 1. d4 Nf6 2. Nc3 c5 3. d5 d6 4. e4 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 b6 10. Nc4 Ba6
1959 Asztalos Memorial 2nd – Round 11 – Beni, Alfred – 0-1 – Honfi, Karoly – G16 1. d4 c5 2. d5 d6 3. e4 Nf6 4. Nc3 g6 5. Be2 Bg7 6. Nf3 O-O 7. O-O Na6 8. Bg5 Nc7 9. Nd2 Bd7 10. a4 a6
1961 Budapest ch-HUN – Round 1 – Lengyel, Laszlo – 0-1 – Szabo, Ladislav – G51 1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 a6 10. a5 Bd7
1961 Maroczy Memorial Budapest HUN – Round 1 – Simagin, Vladimir – 1-0 – Haag, Ervin – G16 1. d4 Nf6 2. Nc3 c5 3. d5 d6 4. e4 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Na6 8. Bg5 Nc7 9. a4 a6 10. Nd2 Bd7
1962 Capablanca Memorial – Round 7 – Polugaevsky, Lev – 1-0 – Haag, Ervin – G60 1. d4 c5 2. d5 d6 3. e4 g6 4. Nf3 Bg7 5. Be2 Nf6 6. Nc3 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 Nh5 10. Bg5 h6
1962 Hoogovens-B2 – Round 3 – Wade, Robert G – 1/2-1/2 – Eising, Johannes – G3 1. d4 c5 2. d5 g6 3. e4 Bg7 4. Nf3 d6 5. Nc3 Nf6 6. Be2 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 a6 10. Qd2 Bg4
1962 Hungary – Round 13 – Lengyel, Laszlo – 1-0 – Honfi, K. – G97 1. d4 Nf6 2. Nc3 c5 3. d5 g6 4. e4 d6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Na6 8. Bg5 Nc7 9. Nd2 a6 10. a4 Bd7
1962 Lasker Memorial Berlin-Ost – Round 9 – Liebert, Heinz – 1/2-1/2 – Drimer, Dolfi – G40 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. d5 d6 5. Be2 Nf6 6. Nc3 O-O 7. O-O Na6 8. Bg5 Nc7 9. a4 h6 10. Bh4 g5
1962 URS-JUG – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Vasiukov, Evgeni – G1 1. d4 g6 2. e4 Bg7 3. Nf3 c5 4. d5 d6 5. Be2 Nf6 6. Nc3 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 Bg4 10. h3 Bxf3
1963 Budapest Ch – Round 1 – Forintos, Gyozo V – 1-0 – Gasztonyi, Endre – G26 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. d5 d6 5. Be2 Nf6 6. Nc3 O-O 7. O-O Na6 8. a4 Nc7 9. Re1 Rb8 10. Bg5 b6
1964 Zagreb – Round 1 – Bobotsov, Milko G – 0-1 – Fuderer, Andrija – G2 1. d4 Nf6 2. Nc3 c5 3. d5 d6 4. e4 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 Bg4 10. h3 Bxf3
1965 Budapest – Round 1 – Kadrev, Zdravko – 0-1 – Vasiukov, Evgeni – G4 1. d4 c5 2. d5 d6 3. Nc3 g6 4. e4 Bg7 5. Nf3 Nf6 6. Be2 O-O 7. O-O Na6 8. e5 dxe5 9. Nxe5 Nb4 10. Bc4 Bf5
1965 Harrachov U26 – Round 6 – Petras, Jan – 1/2-1/2 – Janata, Michael – G16 1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 Bd7 10. Nc4 b5
1965 Hoogovens – Round 1 – Van Scheltinga, Theo – 1/2-1/2 – Geller, Efim P – G2 1. d4 c5 2. d5 d6 3. e4 Nf6 4. Nc3 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 a6 10. Nb3 Bd7
1966 Aarhus – Round 1 – Pedersen, Eigil – 1/2-1/2 – Petersen, Finn – G2 1. d4 c5 2. d5 d6 3. e4 Nf6 4. Nc3 g6 5. Be2 Bg7 6. Nf3 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 Rb8 10. Nd2 Nfe8
1966 La Habana olm fin-B – Round 5 – Walther, Edgar – 1-0 – Alzate, Javier – G17 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 d6 5. Nf3 Nf6 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 Bd7 10. Nc4 b5
1966 The Hague zt – Round 1 – Conrady, Alphonse – 0-1 – Pfleger, Helmut, Dr. – G1 1. d4 Nf6 2. Nc3 c5 3. d5 d6 4. e4 g6 5. Be2 Bg7 6. Nf3 O-O 7. O-O Na6 8. Bg5 Nc7 9. a4 h6 10. Bf4 a6
1967 Budva – Round 1 – Taimanov, Mark E – 1/2-1/2 – ? – G4 1. d4 g6 2. e4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. Nc3 c5 6. d5 O-O 7. O-O Na6 8. Re1 Nc7 9. a4 b6 10. Bf4 Nh5
1967 Capablanca Memorial – Round 11 – Gligoric, Sofija – 1/2-1/2 – Abreu Rodriguez, Juan Luis – G96 1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. d5 d6 5. Nf3 Nf6 6. Be2 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 Bg4 10. Qd2 a6
1967 Dundee Centenary – Round 8 – O'Kelly de Galway, Alberic – 1-0 – Kottnauer, Cenek – G14 1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Be2 O-O 7. O-O Na6 8. Re1 Nc7 9. a4 Bd7 10. Bc4 e5
1967 HUN Ch – Round 10 – Szilagyi, Peter – 1/2-1/2 – Dely, Peter – G33 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. d5 d6 5. Be2 Nf6 6. Nc3 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 Bd7 10. Nc4 b5
1967 Moscow – Round 1 – Najdorf, Miguel – 1/2-1/2 – Tal, Mikhail – G15 1. d4 c5 2. d5 g6 3. e4 Bg7 4. Nf3 d6 5. Be2 Nf6 6. Nc3 O-O 7. O-O Na6 8. Bf4 Nc7 9. Nd2 b5 10. Nxb5 Nxb5
1967 YUG Ch 22th – Round 7 – Bukic, Enver – 1/2-1/2 – Janosevic, Dragoljub – G33 1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 b6 10. Nc4 Ba6
1969 Luhacovice – Round 12 – Kolarov, Atanas Stefanov – 0-1 – Plachetka, Jan – G89 1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Be2 O-O 7. O-O Na6 8. Nd2 Nc7 9. a4 b6 10. Nc4 Ba6
Madrid 1973 – Round 7 – Karpov, Anatoly – 1/2-1/2 – Browne, Walter Shawn – G14 1. d4 c5 2. d5 Nf6 3. Nc3 d6 4. e4 g6 5. Nf3 Bg7 6. Be2 O-O 7. O-O Na6 8. Bf4 Nc7 9. a4 Bg4 10. h3 Bxf3
Moskou 1981 – Round 1 – Beliavsky, Alexander G – 1/2-1/2 – Torre, Eugenio – G19 1. e4 d6 2. d4 g6 3. Nf3 Nf6 4. Nc3 Bg7 5. Be2 O-O 6. O-O c5 7. d5 Na6 8. Re1 Nc7 9. a4 b6 10. h3 Bb7
Olympiad 2002 – Round 5 – Azarov, Sergei – 1-0 – Hickl, Joerg – G164 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nf6 5. Be2 O-O 6. O-O c5 7. d5 Na6 8. Bf4 Nc7 9. a4 b6 10. Re1 Bb7
World Championship 29th 1978 – Round 32 – Karpov, Anatoly – 1-0 – Korchnoi, Viktor – G4 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c5 7. d5 Na6 8. Bf4 Nc7 9. a4 b6 10. Re1 Bb7
World Rapid 2016 – Round 8.39 – Grandelius, Nils – 1/2-1/2 – Maghsoodloo, Parham – G317 1. e4 d6 2. d4 g6 3. Nf3 Bg7 4. Be2 c5 5. d5 Nf6 6. Nc3 O-O 7. O-O Na6 8. Bf4 Rb8 9. a4 Nh5 10. Be3 Nc7

A43y — Schmidt

1.d4 c5 2.d5 d6 3.e4 Nf6 4.Nc3 g6 5.Nf3 Bg7 6.Be2 O-O 7.O-O Na6

Les coups candidats

8.h3 — 27.4% (416 parties) →

Ambassadeurs : Puranen, Jukka (6x), Damljanovic, Branko (4x), Hodgson, Julian M (3x), Ciemniak, Robert (3x), Belov, Igor (3x), Boronyak, Arpad (3x), Videnova-Kuljasevic, Iva (3x), Torre, Eugenio (3x)

8.Bf4 — 22.7% (344 parties)

Ambassadeurs : Puranen, Jukka (5x), Torre, Eugenio (5x), Gheorghiu, Florin (5x), Tal, Mikhail (4x), Pieri, Thierry (4x), Sariego Figueredo, Wilfredo (3x), Korchnoi, Viktor (3x), Ostenstad, Berge (3x)

8.Nd2 — 21.1% (320 parties)

Ambassadeurs : Hebden, Mark L (6x), Krzesaj, Robert (4x), Fuderer, Andrija (3x), Osbun, Erik (3x), Klim, Kamil (3x), Kwasny, Leszek (3x), Kharitonov, Adil (2x), Jackson, Oliver A (2x)

8.Re1 — 18.9% (287 parties)

Ambassadeurs : Torre, Eugenio (3x), Jasnikowski, Zbigniew (3x), Humeau, Cyril (3x), Franco Ocampos, Zenon (3x), Speelman, Jon S (3x), Taimanov, Mark (2x), Morovic Fernandez, Ivan (2x), Browne, Walter Shawn (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.h3	8.Bf4	8.Nd2	8.Re1
<1800	10	40%	20%	—	20%
1800-2200	310	30%	18%	27%	15%
2200-2600	1017	27%	24%	19%	21%
2600+	26	23%	42%	15%	19%

Évolution par décennie (% des parties)

Décennie	N parties	8.h3	8.Bf4	8.Nd2	8.Re1
1950s	10	—	10%	60%	10%
1960s	39	18%	23%	28%	10%
1970s	58	24%	28%	22%	14%
1980s	210	20%	27%	17%	26%
1990s	391	30%	22%	19%	20%
2000s	405	28%	25%	20%	19%
2010s	362	30%	18%	26%	16%
2020s	41	39%	12%	20%	17%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.h3	30%	39%	▲ +9.2%
8.Bf4	18%	12%	▼ -6.0%
8.Nd2	26%	20%	▼ -6.2%
8.Re1	16%	17%	▲ +1.1%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 6 parties
Karpov, Aleksandr — 3 parties
Smyslov, Vladimir — 2 parties
Karpov, Anatoly — 2 parties
Alekhine, Alexander — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

8.h3 — 27.4% (416 parties)

1961 — Navarovszky, Laszlo vs Haag, Ervin — 1/2-1/2 — Budapest HUN
1962 — Gheorghiu, Florin vs Czerniak, Moshe — 1-0 — Varna BUL
1963 — Bukic, Enver vs Bertok, Mario Jr. — 1-0 — Zenica ch YUG
1963 — Trapl, Jindrich vs Vesely, Jiri — 1-0 — Prague CZE
1965 — Bykhovsky, Anatoly A vs Vasiukov, Evgeni — 1-0 — Tallinn ch-URS

8.Bf4 — 22.7% (344 parties)

1954 — Rabar, Braslav vs Lehmann, Karl-Heinz — 1-0 — Munich zt Munich GER
1962 — Wade, Robert G vs Eising, Johannes — 1/2-1/2 — Beverwijk NED
1962 — Polugaevsky, Lev vs Haag, Ervin — 1-0 — Havana CUB
1962 — Gligorić, Svetozar vs Vasiukov, Evgeni — 1/2-1/2 — Lvov UKR
1962 — Levin, Mikhail vs Sakharov, Yuri N — 0-1 — Kiev UKR

8.Nd2 — 21.1% (320 parties)

1952 — Smyslov, Vladimir vs Schmid, Leo — 1-0 — Helsinki FIN
1953 — Nedeljkovic, Srecko M vs Fuderer, Andrija — 1/2-1/2 — Zagreb CRO
1953 — Nedelkovic vs Fuderer, Andrija — 1/2-1/2 — Zagreb JUG/K
1954 — Johansson, Ingemar 1966 vs Fuderer, Andrija — 1/2-1/2 — Amsterdam olm
1955 — Vospernik, Zdravko vs Gligorić, Svetozar — 0-1 — Novi Sad SRB

8.Re1 — 18.9% (287 parties)

1958 — Taimanov, Mark vs Polugaevsky, Lev — 1-0 — Semi-Finals USSR Ch
1966 — Verstraeten, Jan vs Rivera De Jesus, Donato — 1/2-1/2 — Orebro SWE
1967 — Taimanov, Mark vs ? — 1/2-1/2 — Budva MNE
1967 — O'Kelly de Galway, Alberic vs Kottnauer, Cenek — 1-0 — Dundee SCO
1969 — Vinje, Arne vs Ennouisseri M — 1-0 — Dresden GER

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