D56f — QGD: Lasker Defence, Teichmann, 9…c6

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.Qc2 c6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte e5.
Faiblesses adverses : Bc8 enfermé.
Problèmes : roi au centre, Bf1 enfermé, 3 pièces non développées (F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Bd3 — Développer Bf1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte g5, avant-poste e4(C).
Faiblesses adverses : Bf1 enfermé, roi blanc au centre.
Problèmes : Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)
● ...Nbd7 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...c5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

D56f — Lasker Defence Teichmann

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.Qc2 c6

Eval: [+0.41]

Les coups candidats

10.Bd3 — 63.5% (120 parties)

Ambassadeurs : Bedouin, Xavier (5x), Lachmann, Hans G (4x), Frydman, Paulino (2x), Eliskases, Erich (2x), Canete Espinola, Elber Victor (2x), De Souza Mendes, Joao (2x), Pilnik, Herman (2x), Bondarevsky, Igor (2x)

10.Nxe4 — 17.5% (33 parties)

Ambassadeurs : Wade, Robert G (1x), Kieninger, Georg (1x), Trompowsky, Octávio (1x), da Silva Rocha, Adhemar (1x), Pallwitz, Otto (1x), Pietzsch, Wolfgang (1x), Haave, Einar (1x), Nielsen, Borge Hjerrild (1x)

10.Be2 — 8.5% (16 parties)

Ambassadeurs : Eliskases, Erich (2x), Gilg, Karl (2x), Brueder, M. (1x), Furlani, L. (1x), Van Scheltinga, Theo (1x), Eliskases (1x), Kauder, Hartmut (1x), Otto Arnold (1x)

10.a3 — 5.3% (10 parties)

Ambassadeurs : Bronstein, David I (1x), Klovans, Janis (1x), Udovcic, Mijo (1x), Paoli, Enrico (1x), Donnelly, Mike J Dr (1x), Lachmann, Helmut (1x), Addison, William Grady (1x), Acers, Jude (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Bd3	10.Nxe4	10.Be2	10.a3
<1800	2	50%	50%	—	—
1800-2200	47	70%	19%	2%	4%
2200-2600	65	71%	15%	3%	6%
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	10.Bd3	10.Nxe4	10.Be2	10.a3
1930s	8	38%	12%	50%	—
1940s	19	79%	21%	—	—
1950s	22	45%	18%	23%	—
1960s	12	50%	17%	—	25%
1970s	9	56%	—	22%	11%
1980s	9	78%	—	—	—
1990s	14	64%	29%	7%	—
2000s	56	70%	18%	4%	5%
2010s	34	62%	24%	6%	9%
2020s	6	83%	—	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Bd3	62%	83%	▲ +21.6%
10.Nxe4	24%	0%	▼ -23.5%
10.Be2	6%	0%	▼ -5.9%
10.a3	9%	0%	▼ -8.8%

Parties historiques

10.Bd3 — 63.5% (120 parties)

1939 — Canete Espinola, Elber Victor vs Kerlin, G. — 1/2-1/2 — Buenos Aires ARG
1939 — Canete Espinola, Elber Victor vs Bellod Thomas, Gonzalo — 1/2-1/2 — Buenos Aires ol pr-A
1939 — Heinicke, Herbert vs Eliskases, Erich — 1/2-1/2 — Bad Elster
1941 — Frydman, Paulino vs Eliskases, Erich — 1/2-1/2 — Mar del Plata ARG
1941 — Frydman, Paulino vs Czerniak, Moshe — 1/2-1/2 — Buenos Aires ARG

10.Nxe4 — 17.5% (33 parties)

1938 — Trompowsky, Octávio vs da Silva Rocha, Adhemar — 1/2-1/2 — Montevideo URU
1947 — Haave, Einar vs Nielsen, Borge Hjerrild — 1/2-1/2 — tx DEN-NOR
1949 — Wade, Robert G vs Kieninger, Georg — 0-1 — ?
1949 — Pallwitz, Otto vs Pietzsch, Wolfgang — 0-1 — Bad Klosterlausnitz
1949 — Trifunovic, Peter vs Najdorf, M. — 1/2-1/2 — Opatija

10.Be2 — 8.5% (16 parties)

1938 — Brueder, M. vs Furlani, L. — 1-0 — Ljubljana
1939 — Van Scheltinga, Theo vs Eliskases, Erich — 1/2-1/2 — Buenos Aires ARG
1939 — Gilg, Karl vs Eliskases — 0-1 — Bad Oeynhausen GER
1939 — Gilg, Karl vs Eliskases, Erich — 0-1 — Bad Oeynhausen ch-GER
1950 — Kauder, Hartmut vs Otto Arnold — 1/2-1/2 — Soemmerda GER

10.a3 — 5.3% (10 parties)

1963 — Bronstein, David I vs Klovans, Janis — 1/2-1/2 — Almaty
1964 — Udovcic, Mijo vs Paoli, Enrico — 1-0 — Zagreb CRO
1968 — Donnelly, Mike J Dr vs Lachmann, Helmut — 0-1 — Whitby
1971 — Addison, William Grady vs Acers, Jude — 1-0 — Berkeley
2002 — Medic, Miljenko vs Rodgaard, John — 1/2-1/2 — Bled SLO

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● c6→d5, e6→d5, b7→c6, f7→e6, g7→h6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	Non	Non
Non développées	3 (f1, a1, h1)	3 (b8, c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre !	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5	● …c6-c5, ● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
1939 Bad Elster – Round 4 – Heinicke, Herbert – 1/2-1/2 – Eliskases, Erich – G11 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1939 Bad Oeynhausen ch-GER – Round 1 – Gilg, Karl – 0-1 – Eliskases, Erich – G9 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Bg5 Be7 5. Nc3 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Be2 Nd7
1939 Buenos Aires ol f-A – Round 15 – Van Scheltinga, Theo – 1/2-1/2 – Eliskases, Erich – G294 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Be2 Nd7
1939 Buenos Aires ol prel-A – Round 6 – Canete Espinola, Elber Victor – 1/2-1/2 – Bellod Thomas, Gonzalo – G24 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 f5
1941 Buenos Aires Circulo – Round 9 – Frydman, Paulino – 1/2-1/2 – Czerniak, Moshe – G32 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1941 GER Ch 8th – Round 12 – Ernst, Wilhelm – 1-0 – Lachmann, Hans G – G27 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Bg5 Be7 5. e3 O-O 6. Nc3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1941 Mar del Plata – Round 9 – Frydman, Paulino – 1/2-1/2 – Eliskases, Erich – G76 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1946 Barcelona – Round 2 – Llorens Sepulveda, Marcelo – 1/2-1/2 – Pomar Salamanca, Arturo – G12 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 f5
1946 Hamburg Union – Round 13 – Lange, Wilfried – 0-1 – Kieninger, Georg – G18 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1946 Mar del Plata – Round 3 – De Souza Mendes, Joao – 1-0 – Pilnik, Herman – G44 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 f5
1946 Nottingham ch-BCF – Round 1 – Wood, Gabriel – 1-0 – Broadbent, Reginald – G8 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Bg5 Be7 5. Nc3 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1947 Leningrad ch-URS – Round 1 – Bondarevsky, Igor – 1/2-1/2 – Tolush, Alexander – G21 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Be7 5. Nc3 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1947 Leningrad ch-URS – Round 4 – Yudovich, Mikhail M – 1/2-1/2 – Tolush, Alexander – G63 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1947 Mar del Plata – Round 9 – Blanco Cruz, Wara – 1-0 – Hounie Fleurquin, Carlos – G74 1. c4 Nf6 2. d4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 f5
1947 Parnu – Round ? – Bondarevsky, Igor – 1/2-1/2 – Tolush, Alexander V – G76 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Bg5 Be7 5. Nc3 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1948 Hastings Premier 1947/48 23rd – Round 5 – Spanjaard, Eduard – 0-1 – Muhring, Willem Jan – G5 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1948 Karlovy Vary – Round 6 – Vidmar, Marjeta – 1/2-1/2 – Pirc, Vasja – G62 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1949 Oldenburg – Round 4 – Wade, Robert G – 0-1 – Kieninger, Georg – G8 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Nxe4 dxe4
1950 DDR Ch – Round 17 – Krause, Kurt – 1/2-1/2 – Zirngibl, Albert – G35 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Be2 Nd7
1950 FRG Ch – Round 12 – Lehmann, Heinz – 0-1 – Staudte, Hans-Hilmar – G30 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1952 Saltsjobaden Interzonal – Round 10 – Averbakh, Yuri L – 1/2-1/2 – Kotov, Alexander A – G91 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1952 Saltsjobaden Interzonal – Round 18 – Geller, Efim P – 1/2-1/2 – Taimanov, Mark E – G167 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1952 Saltsjobaden Interzonal – Round 9 – Kotov Lundqvist, Alex – 1-0 – Pilnik, Herman – G84 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Be2 Nd7
1953 NRW Ch – Round 8 – Hantke Rolf – 1/2-1/2 – Lachmann, Hans G – G20 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1954 Amsterdam olm – Round 1 – Staahlberg, Gideon – 1/2-1/2 – Pirc, Vasja – G28 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Nxe4 dxe4
1954 DDR Ch 05th – Round 3 – Kahn, Manfred – 1/2-1/2 – Kirchhammer, Rudolf – G13 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1954 DDR Ch 05th – Round 8 – Fuchs, Reinhart – 1/2-1/2 – Kirchhammer, Rudolf – G41 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1956 Moscow olm fin-A – Round 5 – Dobkin, Iosef – 0-1 – Tsvetkov, Alexandar K – G68 1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 c6 8. Qc2 Ne4 9. Bxe7 Qxe7 10. Bd3 Nxc3
1957 POL Ch 15th – Round 10 – Szukszta, Janus – 1/2-1/2 – Dworzynski, Roman – G13 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Rc1 Nd7
1958 Munich olm fin-A – Round 2 – Bisguier, Arthur B – 1/2-1/2 – Eliskases, Erich – G10 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Rd1 Nxc3
1959 OWL Ch – Round 7 – Galle, Wolfgang – 0-1 – Lachmann, Hans G – G15 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1961 IBM – Round 7 – Wolthuis, Willem – 1-0 – Bernstein, Olivia – G33 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1961 OWL Ch – Round 3 – Oestreich, Reinhard – 0-1 – Lachmann, Hans G – G3 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3
1963 Amsterdam m1 – Round 5 – Flohr, Salo – 1/2-1/2 – Bouwmeester, Hans – G9 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Nxe4 dxe4
1964 Pecs – Round 5 – Kozma, Julius – 1/2-1/2 – Paoli, Enrico – G4 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Rc1 Nxc3
1964 Zagreb – Round 9 – Udovcic, Mijo – 1-0 – Paoli, Enrico – G49 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. a3 Nxc3
1967 Zierikzee ch-NED – Round 2 – Langeweg, Kick – 1/2-1/2 – Bouwmeester, Hans – G17 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. Qc2 c6 10. Bd3 Nxc3

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