C04h — French: Tarrasch, Guimard, Main Line, 6.Nb3

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nd7 6.Nb3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte g5, paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Be3 — Développer Bc1
● Bd3 — Développer Bf1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte b4, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 4 pièces non développées (C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● b6+Bb7 — PRIORITÉ: libérer le Bc8 (b6+Bb7, ...Bg4, ...Bf5)
● ...Be7 — Développer Bf8
● ...Bg4 — Clouer Nf3
● ...f6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C04h — Tarrasch Guimard Main Line

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nd7 6.Nb3

Eval: [+0.64]

Les coups candidats

6…a5 — 46.5% (855 parties) →

Ambassadeurs : Drasko, Milan (18x), Garrigos Ortiz, Manuel (17x), Skorna, Ullrich (17x), Prie, Eric (8x), Mammadova, Gulnar (8x), Thorbergsson, Freysteinn (7x), Sahovic, Dragutin (6x), Santos Ruiz, Miguel (6x)

6…Be7 — 29.6% (545 parties) →

Ambassadeurs : Krouzel, Jaroslav (9x), Guimard, Carlos E (8x), Huebner, Robert (8x), Just, Gabriele, Dr. (7x), Suetin, Alexey S (6x), Knudsen, John C (6x), Kruimer, H J (6x), Just, Joachim (5x)

6…f6 — 20.2% (371 parties)

Ambassadeurs : Guimard, Carlos E (5x), Oestreich, Reinhard (5x), Pandurevic, Miro (5x), Timman, Jan H (4x), Just, Gabriele, Dr. (4x), Pimenov, Revolt (4x), Bronstein, David I (3x), Ivkov, Borislav (3x)

6…b6 — 1.6% (30 parties)

Ambassadeurs : Toth, Lili Dr. (3x), Guimard, Carlos E (2x), Lakos, Nikoletta (2x), Meszaros, Gyula (2x), Balogh, Laszlo (2x), Bolbochan, J. (1x), Rossetto, Hector (1x), Westerinen, Heikki M.J. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…a5	6…Be7	6…f6	6…b6
<1800	30	47%	33%	17%	—
1800-2200	476	50%	22%	22%	2%
2200-2600	848	56%	27%	13%	2%
2600+	20	65%	25%	10%	—

Évolution par décennie (% des parties)

Décennie	N parties	6…a5	6…Be7	6…f6	6…b6
1940s	21	—	24%	71%	5%
1950s	40	18%	40%	40%	2%
1960s	77	8%	47%	43%	—
1970s	163	18%	46%	29%	2%
1980s	247	40%	37%	18%	0%
1990s	203	52%	32%	13%	1%
2000s	363	50%	28%	17%	3%
2010s	618	58%	23%	16%	1%
2020s	108	63%	11%	25%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…a5	58%	63%	▲ +4.7%
6…Be7	23%	11%	▼ -11.9%
6…f6	16%	25%	▲ +8.7%
6…b6	1%	1%	-0.4%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties
Botvinnik, Mikhail — 1 partie
Anand, Viswanathan — 1 partie

Parties historiques

6…a5 — 46.5% (855 parties)

1953 — Koch, Berthold vs Bruechner, Siegfried — 1-0 — Jena ch DDR
1957 — Bogdanov, Emil vs Haag, Ervin — 1/2-1/2 — Reykjavik ISL
1957 — Bronstein, David I vs Gusev, Yuri S — 1-0 — Moscow RUS
1958 — Portisch, Lajos vs Thorbergsson, Freysteinn — 1/2-1/2 — Munchen olm
1958 — Kopilov, Nikolay Georgiyevich vs Uusi, Gunnar — 1-0 — Rostov on Don

6…Be7 — 29.6% (545 parties)

1947 — Klaman, Konstantin Mikhailovich vs Tolush, Alexander — 1/2-1/2 — Leningrad ch-URS
1948 — Foltys, Jan vs Troianescu, Octav — 0-1 — Karlovy Vary
1949 — Letelier Martner, Rene vs Guimard, Carlos E — 1-0 — Mar del Plata ARG
1949 — Najdorf, Miguel vs Guimard, Carlos E — 1-0 — Buenos Aires ARG
1949 — Beretta, Hector vs Guimard, Carlos E — 0-1 — Remedios de Escalada

6…f6 — 20.2% (371 parties)

1944 — Botvinnik, Mikhail vs Boleslavsky, Isaac — 1-0 — Moskou ch-URS
1946 — Milic, Borislav vs Subaric, Mladen — 0-1 — Zagreb ch YUG
1946 — Yanofsky, Daniel Abraham vs Guimard, Carlos E — 1-0 — Groningen NED
1946 — Chistiakov, Alexander vs Rovner, Dmitry — 1/2-1/2 — Moscow RUS
1946 — Kalabar, Sadi vs Kindij Igor — 1-0 — Zagreb CRO

6…b6 — 1.6% (30 parties)

1947 — Bolbochan, J. vs Guimard, Carlos E — 1-0 — Mar del Plata ARG
1958 — Rossetto, Hector vs Guimard, Carlos E — 1/2-1/2 — Buenos Aires ARG
1972 — Janosevic, Dragoljub vs Sahovic, Dragutin — 1/2-1/2 — Novi Sad SRB
1973 — Ostojic, Predrag vs Lederman, Leon — 1-0 — Netanya ISR
1974 — Westerinen, Heikki M.J. vs Johannessen, Svein — 1-0 — Oslo NOR

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● d4→e5	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (3v1), ● g5 (2v1)	● b4 (2v0)
Cases faibles	—	● c5, ● e5
Centre	● d4 (3v1)	● d5 (1v0), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (c1, f1, a1, h1)	4 (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	● …f7-f6, ● …f7-f5

Partie
1944 Moskou ch-URS – Round 1 – Botvinnik, Mikhail – 1-0 – Boleslavsky, Isaac – G94 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 8. Bf4 O-O 9. exf6 gxf6 10. O-O Nb6
1946 Groningen – Round 9 – Yanofsky, Daniel Abraham – 1-0 – Guimard, Carlos E – G44 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. exf6 Nxf6 8. Bb5 Bd6 9. O-O O-O 10. Bg5 Qe8
1946 Zagreb ch YUG – Round 10 – Milic, Borislav – 0-1 – Subaric, Mladen – G13 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. exf6 Qxf6 8. Bg5 Qf7 9. Bb5 Bd6 10. O-O O-O
1947 Leningrad ch-URS – Round 12 – Flohr, Salo – 1/2-1/2 – Bondarevsky, Igor – G116 1. d4 e6 2. e4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. exf6 Qxf6 8. Bg5 Qf7 9. Bh4 e5 10. dxe5 Ndxe5
1947 Leningrad ch-URS – Round 17 – Aronin, Lev – 0-1 – Bondarevsky, Igor – G158 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O c5 10. exf6 Qxf6
1947 Mar del Plata – Round 16 – Bolbochan, J. – 1-0 – Guimard, Carlos E – G137 1. d4 e6 2. e4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 b6 7. Bf4 Be7 8. h4 Na5 9. c3 c5 10. Nxa5 bxa5
1947 Stuttgart – Round 5 – Wolk, Sigmund – 1-0 – Rautenberg, Wilhelm – G5 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bf4 fxe5 8. dxe5 Be7 9. c3 O-O 10. Bg3 Qe8
1948 Buenos Aires – Round ? – Acharam Medina, Sebastian Alejandro – 0-1 – Guimard, Carlos E – G24 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. Bf4 f5 10. g4 Be7
1948 FIDE (19) -1951 – Round 1 – Bronstein, David I – 1-0 – Szabo, Ladislav – G16 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O c5 10. c4 dxc4
1948 Mar del Plata – Round 17 – O'Kelly, Albéric de Galway – 1-0 – Guimard, Carlos E – G143 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O a5 10. Bf4 a4
1948 Saltsjobaden Interzonal – Round 10 – Bronstein, David I – 1-0 – Szabo, Laszlo – G93 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O c5 10. c4 dxc4
1949 Mar del Plata – Round 6 – Lasker, Edward – 0-1 – Guimard, Carlos E – G65 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O fxe5 10. dxe5 Be7
1952 DDR Ch 03rd – Round 12 – Platz, Hans – 0-1 – Budrich, Edmund – G10 1. d4 e6 2. e4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. exf6 Qxf6 8. Bb5 Bd6 9. O-O O-O 10. c4 e5
1952 DDR Ch 03rd – Round 14 – Schlieder, Rolf – 1-0 – Zirngibl, Albert – G12 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 8. O-O O-O 9. Re1 Nb6 10. c3 Bd7
1954 DDR Ch U20 – Round 13 – Hampel, Johannes – 0-1 – Muehlberg, Siegfried – G62 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 fxe5 8. dxe5 Be7 9. Nbd4 Ndb8 10. O-O O-O
1957 Hamburg Ch – Round 1 – Rellstab, Ludwig Sr – 1-0 – Rieder, Josef – G1 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O fxe5 10. Na5 Qf6
1957 HUN-JUG m – Round ? – Bertok, Mario Jr. – 1/2-1/2 – Portisch, Lajos – G15 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bf4 Be7 8. exf6 Bxf6 9. Bb5 O-O 10. O-O Ne7
1958 Buenos Aires V – Round 12 – Rossetto, Hector – 1/2-1/2 – Guimard, Carlos E – G51 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 b6 7. h4 h6 8. Bf4 Na5 9. Nxa5 bxa5 10. Bd3 c5
1958 HUN Ch 13th – Round 11 – Pogats, Jozsef Jr. – 1-0 – Portisch, Lajos – G95 1. e4 Nc6 2. Nf3 e6 3. d4 d5 4. Nbd2 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bf4 fxe5 8. dxe5 Be7 9. c3 O-O 10. Bg3 Qe8
1958 HUN Ch 14th – Round 3 – Pogats, Jozsef Jr. – 1/2-1/2 – Sallay, Roland – G7 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bf4 Be7 8. Bg3 O-O 9. c3 a5 10. a4 f5
1958 Munich olm prel – Round 8 – Sefc, Jan – 1-0 – Van Den Broeck, Hans – G191 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 8. O-O O-O 9. Re1 fxe5 10. dxe5 Nb6
1959 Mar del Plata – Round 1 – Bolbochan, J. – 1/2-1/2 – Ivkov, Borislav – G63 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bf4 Be7 8. h4 O-O 9. g3 Nb6 10. Bd3 f5
1960 OWL Ch – Round 1 – Schneider, Klaus – 0-1 – Oestreich, Reinhard – G1 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 8. Bf4 fxe5 9. dxe5 O-O 10. Bg3 Qe8
1962 JUG Ch – Round ? – Ciric, Dragoljub M – 1-0 – Ostojic, Predrag – G12 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O c5 10. c4 dxc4
1962 Skopje ch17-YUG – Round 1 – Ciric, Dimitrije – 1-0 – Ostojic, Predrag – G80 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O c5 10. c4 dxc4
1963 Spartak CC – Round ? – Zagorovsky, Vladimir – 1-0 – Kotkov, Yuri M – G30 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 8. exf6 Bxf6 9. Bf4 O-O 10. O-O a5
1964 Kiev ch-URS – Round 1 – Sakharov, Yuri G. – 1/2-1/2 – Lein, Andreas – G122 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a6 8. Bxc6 bxc6 9. O-O c5 10. c4 dxc4
1964 Magdeburg ch DDR – Round 1 – Maedler, Juergen, Dr. – 0-1 – Muehlberg, Siegfried – G1 1. d4 e6 2. e4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 a5 8. exf6 Qxf6 9. Bg5 Qf7 10. O-O Bd6
1965 DDR Ch 15th – Round 14 – Boehnisch, Manfred – 1-0 – Franz, Joachim – G61 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 a6 7. c3 f6 8. Bf4 Be7 9. Bd3 O-O 10. Qc2 f5
1965 OWL Ch – Round 1 – Soelter, Reinhold – 1/2-1/2 – Oestreich, Reinhard – G2 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 fxe5 8. dxe5 Be7 9. Bf4 O-O 10. Bg3 a6
1965 OWL Ch – Round 9 – Speer, Albrecht – 1-0 – Oestreich, Reinhard – G26 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 fxe5 8. dxe5 Be7 9. Nbd4 Ndb8 10. c3 O-O
1966 Hoogovens – Round 1 – Ivkov, Borislav – 1-0 – Lehmann, Heinz – G10 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 8. O-O O-O 9. exf6 Bxf6 10. Re1 Re8
1966 OWL Ch – Round 4 – Diekmann, Hans-Joachim, Dr. – 1-0 – Oestreich, Reinhard – G16 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 fxe5 8. dxe5 Be7 9. Nbd4 Ndb8 10. c3 O-O
1967 Jerusalem wch-jr – Round 2 – Tompuri, I. – 0-1 – Timman, Jan H – G3 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bf4 Be7 8. Qd2 a5 9. Bd3 a4 10. Nc1 O-O
1967 Jerusalem wch-jr – Round 3 – Ghizdavu, Dumitru – 1/2-1/2 – Timman, Jan H – G5 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 f6 7. Bb5 Be7 8. exf6 Bxf6 9. O-O O-O 10. Re1 Nb6

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