C08h — French: Tarrasch, Open, 4.exd5 exd5 5.Ngf3 a6

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 a6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte e5 et la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Be3 (Développer Bc1) ; Bd3 (Développer Bf1) ; h3 (Empêcher ...Bg4) ; Tour sur colonne e.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les cavaliers b8 et g8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nbd7 (Développer Nb8) ; ...Nf6 (Développer Ng8) ; ...Bg4 (Développer Bc8, clouer Nf3) ; ...Be7 (Développer Bf8).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v0)	—
Cases faibles	—	—
Centre	● e5 (2v0)	● d5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● e	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	4 (c1, f1, a1, h1)	6 (b8, g8, c8, f8, 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	fermé
Ruptures	● c2-c3	● …c5-c4, ● …f7-f6, ● …f7-f5

Partie
1948 World Championship 18th – Round 15 – Keres, Paul – 0-1 – Botvinnik, Mikhail – G11 1. d4 e6 2. e4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bg5 Nf6 9. Nfd4 O-O 10. Be2 Qd6
1949 Trencianske Teplice – Round 17 – Foltys, Jan – 1/2-1/2 – Szabo, Ladislav – G112 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Nbd4 Nf6 9. Bd3 O-O 10. O-O Nbd7
1950 FRG Ch Bad Pyrmont GER – Round 8 – Unzicker, Wolfgang – 1/2-1/2 – Niephaus, Walter – G24 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bb6 8. Bg5 Ne7 9. Bd3 Nbc6 10. O-O Bg4
1950 Hastings5051 – Round 8 – Unzicker, Wolfgang – 1-0 – Castaldi, Vincenzo – G38 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Bb6 8. Bg5 Ne7 9. Bd3 O-O 10. O-O Nbc6
1950 Moskou ch-URS – Round 1 – Geller, Efim P – 1/2-1/2 – Mikenas, Vladas – G108 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Nf6 9. Qe2+ Be6 10. Be3 Bxe3
1950 Schiavno Zdroj – Round 1 – Pogats, Jozsef Jr. – 1/2-1/2 – Szabo, Ladislav – G119 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Qe7+ 9. Be2 Nf6 10. O-O Nc6
1950 Venice – Round 15 – Rossolimo, Nicolas – 1/2-1/2 – Letelier Martner, Rene – G122 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. c4 Nf6 7. Be2 Nc6 8. O-O Bg4 9. Re1 dxc4 10. Nxc4 Be6
1951 Marianske Lazne zt – Round 1 – Foltys, Jan – 1-0 – Skold, Kent-Ake – G18 1. d4 e6 2. e4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. c4 Nf6 7. cxd5 cxd4 8. Bc4 b5 9. Bb3 d3 10. O-O Be7
1952 Budapest – Round 7 – Szily, Jozsef – 1-0 – Botvinnik, Mikhail – G66 1. d4 e6 2. e4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. c4 Nf6 7. Be2 Nc6 8. cxd5 Nxd5 9. O-O cxd4 10. Nb3 Be7
1952 Corr – Round ? – Bernstein, Sidney – 1-0 – Boutteville, Cesar – G11 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Qe2+ Ne7 9. Be3 O-O 10. Bxa7 Rxa7
1952 Moscow Ch – Round 10 – Ravinsky, Grigory – 0-1 – Baranov, Aleksandr – G56 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. c4 cxd4 7. cxd5 Nf6 8. Qa4+ Nbd7 9. Nxd4 Nxd5 10. Nf5 Qf6
1953 AUS Ch – Round 6 – Koshnitsky, Gregory – 1/2-1/2 – Ozols, Karlis – G9 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. c3 Nc6 7. dxc5 Bxc5 8. Nb3 Bb6 9. Be2 Nge7 10. O-O O-O
1954 Kiev ch-URS – Round 1 – Suetin, Alexey S – 1/2-1/2 – Petrosian, Tigran A. – G140 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. b3 Bf5 7. Bb2 Nf6 8. Be2 Nbd7 9. O-O Be7 10. dxc5 Nxc5
1955 Zagreb – Round 12 – Trifunovic, Petar – 1/2-1/2 – Dueckstein, Andreas – G123 1. d4 e6 2. e4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bd6 8. Be2 Nc6 9. O-O Nge7 10. Bg5 O-O
1957 Sofia zt Sofia BUL – Round 1 – Matanovic, Aleksandar – 1/2-1/2 – Basjuni, Sad Zaglul – G54 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Be7 8. Be2 Nf6 9. O-O O-O 10. Nbd4 Nc6
1957 Sombor – Round 18 – Janosevic, Dragoljub – 1/2-1/2 – Marić, Rudolf – G176 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 a6 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bb6 8. Be2 Nc6 9. O-O Nge7 10. Nfd4 O-O
1958 HUN Ch 13th – Round 8 – Kluger, Gyula – 1/2-1/2 – Forintos, Gyozo V – G65 1. d4 e6 2. e4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Be2 Nf6 9. O-O O-O 10. c3 Qd6
1960 URS Ch sf – Round 3 – Uusi, Gunnar – 1-0 – Tolush, Alexander V – G24 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bd6 8. Bd3 Ne7 9. O-O O-O 10. Re1 Nbc6
1962 Varna olm – Round 1 – Gheorghiu, Florin – 1-0 – Dueckstein, Andreas – G68 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bd6 8. Bg5 Ne7 9. Bd3 O-O 10. O-O Nbc6
1965 Berlin tt – Round 3 – Unzicker, Wolfgang – 1/2-1/2 – Dueckstein, Andreas – G18 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bd6 8. Bg5 Ne7 9. Be2 Nbc6 10. O-O O-O
1965 Copenhagen – Round 15 – Janosevic, Dragoljub – 1/2-1/2 – Dueckstein, Andreas – G122 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bd6 8. Qd4 Nf6 9. Bg5 Nc6 10. Qh4 Qe7+
1965 Zagreb – Round 19 – Matanovic, Aleksandar – 1/2-1/2 – Bronstein, David I – G192 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Be7 8. Bd3 Bg4 9. h3 Bh5 10. Nbd4 Nf6
1966 La Habana olm fin-A – Round 11 – Matanovic, Aleksandar – 1/2-1/2 – Korchnoi, Viktor – G215 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Nc6 9. O-O Nge7 10. Bf4 O-O
1967 Budva – Round 1 – Ciric, Dragoljub M – 1/2-1/2 – Korchnoi, Viktor – G24 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 a6 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Qe7+ 9. Be2 Nf6 10. O-O O-O
1967 Corr – Round 1 – Mohrlok, Dieter – 1-0 – Gerhard, Hans – G21 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Nf6 9. Qe2+ Qe7 10. Qxe7+ Kxe7
1967 Harrachov – Round 1 – Garcia Martinez, Silvino – 1/2-1/2 – Sorri, Kari Juhani – G113 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Bd3 Qe7+ 8. Qe2 Qxe2+ 9. Kxe2 Nf6 10. Nb3 Bb6
1967 Skopje – Round 10 – Matulovic, Milan – 1-0 – ? – G84 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. b3 Nc6 7. Bb2 Nf6 8. Bd3 Be7 9. dxc5 O-O 10. O-O Bxc5
1967 URS Team Ch – Round ? – Stein, Leonid – 1/2-1/2 – Korchnoi, Viktor – G23 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 a6 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bg5 Ne7 9. Qe2 Nc6 10. O-O-O O-O
1967 URS Team Ch – Round 1 – Osnos, Viatcheslav – 1-0 – Uusi, Gunnar – G132 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Nf6 9. Qe2+ Be6 10. Nbd4 Qe7
1967 URS-ch35 – Round 1 – Shmit, Anatoly – 0-1 – Furman, Slavomir – G87 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bg5 Nf6 9. Qe2+ Be6 10. Be3 O-O
1967 YUG-URS – Round 5 – Ciric, Dragoljub M – 1/2-1/2 – Korchnoi, Viktor – G18 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 a6 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Qe7+ 9. Be2 Nf6 10. O-O O-O
1968 Hoogovens – Round 2 – Matanovic, Aleksandar – 0-1 – Korchnoi, Viktor – G32 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Bd3 Qe7+ 9. Qe2 Nc6 10. O-O Bg4
1968 Hoogovens – Round 6 – Matanovic, Aleksandar – 1/2-1/2 – Donner, Jan-Hein – G61 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Be2 Nf6 9. O-O O-O 10. Nfd4 Nbd7
1968 Hoogovens – Round 7 – Rossolimo, Nicolas – 0-1 – Korchnoi, Viktor – G68 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. c4 Nf6 7. Be2 Nc6 8. O-O cxd4 9. cxd5 Nxd5 10. Nb3 Be7
1968 Lasker Memorial – Round 1 – Zinn, Lothar – 0-1 – Uhlmann, Wolfgang – G26 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. Qe2+ Be7 7. dxc5 Nf6 8. g3 O-O 9. Bg2 Bxc5 10. O-O Bd7
1973 Leningrad Interzonal – Round 16 – Estevez Garcia, Gonzalo – 0-1 – Korchnoi, Viktor – G124 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. dxc5 Bxc5 7. Nb3 Ba7 8. Be2 Nf6 9. O-O Nc6 10. Bg5 O-O
Amber-rapid 20th 2011 – Round 3 – Nakamura, Hikaru – 1/2-1/2 – Ivanchuk, Vasyl – G9 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 a6 6. Bd3 c4 7. Be2 Bd6 8. c3 Ne7 9. b3 b5 10. a4 Bb7
Lucerne 1985 – Round 1 – Renet, Olivier – 0-1 – Chernin, Alexander – G9 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Be7 8. Be2 Nf6 9. O-O O-O 10. Bg5 Nc6
Moskou ch-URS 1988 – Round 1 – Ivanchuk, Vasyl – 1/2-1/2 – Eingorn, Vereslav S – G52 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Ba7 8. Qe2+ Qe7 9. Bg5 Qxe2+ 10. Bxe2 Nc6
Olympiad 2002 – Round 8 – Movsesian, Sergei – 1/2-1/2 – Nikolic, Predrag – G278 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 a6 5. exd5 exd5 6. dxc5 Bxc5 7. Nb3 Bb6 8. Qe2+ Be6 9. Be3 Nf6 10. Bxb6 Qxb6
TCh-RUS 2008 – Round 4 – Navara, David – 1/2-1/2 – Volkov, Sergey – G117 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. exd5 exd5 6. c4 Nf6 7. cxd5 Nxd5 8. Bc4 b5 9. Bxd5 Qxd5 10. O-O Nc6

C08h — Tarrasch Open

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 a6

Eval: [+0.16]

Les coups candidats

6.dxc5 — 47.8% (1272 parties)

Ambassadeurs : Eingorn, Vereslav S (18x), Nikolic, Predrag (12x), Kiriakov, Petr (10x), Raicevic, Vladimir (9x), Brynell, Stellan (9x), Korchnoi, Viktor (7x), Dolmatov, Sergey (7x), Van der Wiel, John T.H. (7x)

6.Be2 — 42.5% (1132 parties) →

Ambassadeurs : Dolmatov, Sergey (15x), Eingorn, Vereslav S (14x), Dreev, Aleksey (13x), Kiriakov, Petr (12x), Tibensky, Robert (11x), Geller, Efim P. (10x), Dizdar, Goran (10x), Brynell, Stellan (10x)

6.c3 — 3.3% (89 parties)

Ambassadeurs : Djuric, Stefan (2x), Pimpalkhare Vedant (2x), Koshnitsky, Gregory (1x), Ozols, Karlis (1x), Idjuski, Ognjen (1x), Perovic, Dragan (1x), Lev, Arieh (1x), Buscio, Jorge (1x)

6.c4 — 2.3% (60 parties)

Ambassadeurs : Korchnoi, Viktor (3x), Giterman, Shlomo (2x), Rossolimo, Nicolas (2x), Berke, Ana (2x), Foltys, Jan (1x), Skold, Kent-Ake (1x), Szily, Jozsef (1x), Botvinnik, Mikhail (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.dxc5	6.Be2	6.c3	6.c4
<1800	22	64%	27%	5%	—
1800-2200	566	52%	37%	7%	1%
2200-2600	1573	46%	45%	2%	2%
2600+	60	55%	37%	—	3%

Évolution par décennie (% des parties)

Décennie	N parties	6.dxc5	6.Be2	6.c3	6.c4
1940s	9	67%	11%	—	22%
1950s	30	57%	10%	3%	20%
1960s	35	60%	23%	3%	9%
1970s	75	52%	37%	4%	3%
1980s	465	43%	52%	2%	1%
1990s	516	42%	51%	2%	1%
2000s	632	49%	40%	3%	3%
2010s	696	51%	37%	5%	2%
2020s	204	54%	36%	5%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.dxc5	51%	54%	▲ +2.8%
6.Be2	37%	36%	▼ -1.4%
6.c3	5%	5%	▲ +0.7%
6.c4	2%	3%	▲ +0.9%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 5 parties
Karpov, Aleksandr — 2 parties
Tal, Mikhail — 2 parties
Carlsen, Magnus — 2 parties

Parties historiques

6.dxc5 — 47.8% (1272 parties)

1948 — Keres, Paul vs Botvinnik, Mikhail — 0-1 — Den Haag/Moskau
1948 — Keres, Paul vs Botvinnik, Mikhail — 0-1 — The Hague/Moscow
1948 — Keres, Paul Petrovich vs Botvinnik, Mikhail — 0-1 — Match Hague/Moscow
1948 — Keres, Paul vs Botvinnik, Mikhail — 0-1 — WM 1886 New York u.a.
1949 — Foltys, Jan vs Szabo, Ladislav — 1/2-1/2 — Trencianske Teplice SVK

6.Be2 — 42.5% (1132 parties)

1949 — Prins, Laura vs Zimmerman, Osmir — 1-0 — Venice ITA
1950 — Rossolimo, Nicolas vs Bolbochan, J. — 1/2-1/2 — Dubrovnik CRO
1952 — Krivec, Sandi vs Bozic, Aleksandar — 1/2-1/2 — Belgrade SRB
1959 — Bialas, Wolfram vs Weise, Dieter — 1-0 — FRG-ch Nuerenberg GER
1964 — Vooremaa, Andres vs Karner, Hillar — 1/2-1/2 — Estonia

6.c3 — 3.3% (89 parties)

1953 — Koshnitsky, Gregory vs Ozols, Karlis — 1/2-1/2 — Hobart
1968 — Idjuski, Ognjen vs Perovic, Dragan — 0-1 — Slovenj Gradec
1971 — Lev, Arieh vs Buscio, Jorge — 1/2-1/2 — Athens GRE
1971 — Velikov, Petar vs Pipkov, Ljuben — 0-1 — Sofia BUL
1974 — Camaton Borbor, Carlos vs Hjertenes, Oystein — 1/2-1/2 — Teesside ENG

6.c4 — 2.3% (60 parties)

1948 — Korchnoi, Viktor vs Giterman, Shlomo — 1-0 — Tallinn USSR ch jr
1948 — Korchnoi, Viktor vs Giterman, Shlomo — 1-0 — Tallinn EST
1950 — De Lambert, Olivier vs Donner, Bernd — 1-0 — Dubrovnik CRO
1950 — Garcia Lambert, Hugo vs Donner, H. — 1-0 — Dubrovnik CRO
1950 — Rossolimo, Nicolas vs Letelier Martner, Rene — 1/2-1/2 — Venice ITA

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