D47c — Semi-Slav: Meran, Freymann, 8…b4

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bb3 b4 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Ne2 (85 % des parties) ; Na4 (13 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bb7 (Développer c8 — 51 % des parties) ; ...Ba6 (Fou actif (mobilité 7), Développer c8 — 19 % des parties) ; ...Bd6 (Fou actif (mobilité 9), Développer f8 — 13 % des parties) ; ...Be7 (Développer f8 — 12 % des parties) ; ...c5 (Frapper le centre adverse — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● c6
Chaînes	● f2→e3, e3→d4	● f7→e6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	● d5 (3v2)
Cases faibles	—	—
Centre	● d4 (3v0), ● e5 (2v1)	● d5 (3v2)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bb3	● Bb3 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 2)
Bf8		● Bf8 Non développé (mob. 3)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● 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	mobile
Ruptures	● d4-d5	● …c6-c5, ● …e6-e5

Partie
1931 Prague ol – Round 8 – Rejfir, Josef – 1-0 – Noteboom, Daniël – G27 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O Qb6
1944 Moskou ch-URS – Round 1 – Ravinsky, Grigory – 1-0 – Kotov Lundqvist, Alex – G18 1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 Nf6 5. Bd3 dxc4 6. Bxc4 Nbd7 7. Nc3 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Be7
1947 Leningrad ch-URS – Round 18 – Tolush, Alexander – 1-0 – Lilienthal, Andor – G162 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Be7
1947 Leningrad ch-URS – Round 7 – Kan, Ilya A – 1/2-1/2 – Yudovich, Mikhail M – G81 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Ba6 10. O-O Be7
1947 Parnu – Round ? – Tolush, Alexander V – 1-0 – Randviir, Juri – G71 1. d4 d5 2. c4 c6 3. Nf3 e6 4. Nc3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Ba6 10. O-O Be7
1947 Yugoslavia Ch – Round 4 – Markovic, Miroslav – 1-0 – Milic, Borislav – G18 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Nb1 Ba6 10. Nbd2 c5
1948 Buenos Aires/La Plata it – Round 1 – Bolbochan, J. – 1/2-1/2 – Stahlberg, Gideon – G2 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bd6 10. O-O O-O
1952 Helsinki olm – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Book, Eero – G21 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Ba6 10. O-O Bd6
1952 Moskou ch-URS – Round 1 – Tolush, Alexander – 0-1 – Simagin, Vladimir – G16 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O O-O
1952 Olympiad Helsinki (Finland) – Round ? – Gligoric, Svetozar – 1/2-1/2 – Book, Eero – G13 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Ba6 10. O-O Bd6
1954 New York ch-USA – Round 12 – Pavey, Max – 0-1 – Evans Lianda – G47 1. c4 Nf6 2. Nf3 e6 3. Nc3 d5 4. d4 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O O-O
1957 Sao Paulo Sao Paulo BRA – Round 7 – Hollmann, Jose – 0-1 – Sanguineti, Raúl Carlos – G14 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. Bc2 c5
1959 DEN Ch – Round 5 – Larsen, Bent Ravn – 1-0 – Jensen, Erik Bartram – G22 1. d4 d5 2. c4 c6 3. Nc3 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O c5
1959 Riga – Round 1 – Teschner, Rudolf – 1/2-1/2 – Nei, Iivo – G11 1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Be7
1959 Tbilisi ch-URS – Round 10 – Petrosian, Tigran A. – 1-0 – Nezhmetdinov, Rashid – G78 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Bd6
1960 Leipzig olm – Round 1 – Blockx, Frank – 0-1 – Pomar Salamanca, Arturo – G2 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Na4 Ba6 10. Bc2 Qa5
1961 Netanya – Round 6 – Kraidman, Yair – 0-1 – Trifunovic, Petar – G33 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Ba6 10. Bd2 Be7
1962 Hungary – Round 8 – Kluger, Gyula – 1/2-1/2 – Filep, Tibor – G60 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Be7
1962 Mar del Plata Latin – Round 2 – Colon Cortegoso, Marta – 0-1 – Foguelman, Alberto – G4 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O Bb7
1962 Varna olm – Round 9 – Sanguinetti, Raul – 1-0 – Abdullah Al Omari – G386 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Be7
1963 Capablanca Memorial – Round 8 – Kortchnoi, V. – 1/2-1/2 – Tal, Michael – G70 1. d4 d5 2. c4 c6 3. Nc3 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O O-O
1964 ARG Ch – Round 6 – Schweber, Samuel – 1/2-1/2 – Palermo, Vicente – G24 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Bd6
1964 FRG Ch qual 9th – Round 1 – Troeger, Paul – 1-0 – Capelan, Guenter – G1 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O O-O
1964 Tel Aviv olm fin-B – Round 3 – Yepez, Olavo – 1-0 – Ståhlberg, Gideon – G28 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O O-O
1965 Sarajevo – Round 6 – Malich, Burkhard, Dr. – 1/2-1/2 – Ciric, Dimitrije – G46 1. d4 d5 2. Nf3 e6 3. c4 c6 4. Nc3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Bd6
1966 EU Ch U20 Niemeyer 4th – Round 10 – Vadasz, Laszlo – 1-0 – Jedrzejek Czeslaw – G12 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bd6 10. O-O O-O
1968 Palma de Mallorca – Round 13 – Petrosian, Tigran A. – 1/2-1/2 – Pomar Salamanca, Arturo – G116 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Bd6
1975 URS Team Ch – Round 3 – Petrosian, Tigran V. – 1/2-1/2 – Bagirov, Rufat – G66 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Bb7 10. O-O Bd6
Amber Blindfold 2000 – Round 9 – Nikolic, Predrag – 0-1 – Lautier, Joel – G38 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bb3 b4 9. Ne2 Be7 10. O-O O-O

D47c — Meran, Freymann (1931)

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bb3 b4

Les coups candidats

9.Ne2 — 85.1% (393 parties)

Ambassadeurs : Dorfman, Iossif (4x), Yudovich, Mikhail M (3x), Ciric, Dragoljub M (3x), Korchnoi, Viktor (3x), Larsen, Bent Ravn (3x), Tanti, Joseph G (3x), Gligoric, Sofija (2x), Tal, Mikhail (2x)

9.Na4 — 12.8% (59 parties)

Ambassadeurs : Blockx, Frank (2x), Condie, Mark L (2x), Aboulasse omar (1x), Pomar Salamanca, Arturo (1x), Yrjola, Jouni (1x), Valkesalmi, Kimmo (1x), Moerschbach, Udo (1x), Stolte, Alexander (1x)

9.Nb1 — 1.9% (9 parties)

Ambassadeurs : Moguilevsky, M. (1x), Castelli, Raul A (1x), Kossobudzki, Robert (1x), Zgodka, M. (1x), Deatherage, Paul E (1x), Bacholke, Michael (1x), Goldblat, Michael (1x), Mellegers, Joost (1x)

9.O-O — 0.2% (1 parties)

Ambassadeurs : Ruiz Diaz, Raquel Marina (1x), Epiney, Flo (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.Ne2	9.Na4	9.Nb1	9.O-O
<1800	33	85%	15%	—	—
1800-2200	157	90%	8%	1%	1%
2200-2600	176	82%	15%	2%	—
2600+	12	75%	25%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9.Ne2	9.Na4	9.Nb1	9.O-O
1950s	15	93%	—	7%	—
1960s	21	90%	10%	—	—
1970s	22	95%	5%	—	—
1980s	48	77%	23%	—	—
1990s	78	73%	24%	3%	—
2000s	124	89%	7%	3%	1%
2010s	119	89%	9%	2%	—
2020s	35	83%	17%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.Ne2	89%	83%	▼ -6.2%
9.Na4	9%	17%	▲ +7.9%
9.Nb1	2%	0%	▼ -1.7%
9.O-O	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

9.Ne2 — 85.1% (393 parties)

1952 — Gligoric, Sofija vs Book, Eero — 1/2-1/2 — Helsinki olm
1952 — Alexander Tadala vs Simagin, Vladimir — 0-1 — Moskou ch-URS
1954 — Baev, Pavel vs Evans, Larry — 0-1 — New York ch-USA
1954 — Shahzade vs Alexander G — 1-0 — USSR
1955 — Adia Brown vs Zerkowitz, George — 0-1 — Vancouver

9.Na4 — 12.8% (59 parties)

1960 — Blockx, Frank vs Aboulasse omar — 0-1 — Leipzig GER
1960 — Blockx, Frank vs Pomar Salamanca, Arturo — 0-1 — Leipzig olm
1976 — Endzelins, Lucius vs Nyman, Sture V — 1/2-1/2 — cr.
1980 — Mascarinas, Rico vs Zichichi, Alvise — 1/2-1/2 — La Valletta MLT
1985 — Speelman, Jon S vs Jussupow, Artur — 1/2-1/2 — Lucerne SUI

9.Nb1 — 1.9% (9 parties)

1959 — Moguilevsky, M. vs Castelli, Raul A — 0-1 — Buenos Aires ARG
1990 — Deatherage, Paul E vs Bacholke, Michael — 0-1 — cor TS-36-1
1993 — Kossobudzki, Robert vs Zgodka, M. — 1/2-1/2 — cr.
2000 — Laczay, Istvan Dr vs Furman, Slavomir — 0-1 — IECG
2001 — Goldblat, Michael vs Mellegers, Joost — 0-1 — GER

9.O-O — 0.2% (1 parties)

2006 — Ruiz Diaz, Raquel Marina vs Epiney, Flo — 0-1 — LSS

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