D48m — Semi-Slav: Meran, Reynolds, 10…e5

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.d5 e5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. b3 (Préparer le fianchetto — 67 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 28 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...c4 (Frapper le centre adverse — 52 % des parties) ; ...Bd6 (Développer f8 — 42 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● e4→d5	● a6→b5
Passés	● d5	—
Majorité	—	● aile dame 3v2

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bd3	● Bd3 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 2)
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	fermé

Partie
1946 Treybal Memorial – Round 2 – Foltys, Jan – 1-0 – Trifunovic, Petar – G8 1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1949 Remedios de Escalada – Round 1 – Benko, Francisco – 1-0 – Sanguinetti, Renato – G1 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1950 Hungary – Round 1 – Molnar, Istvan – 1/2-1/2 – Gereben, Erno – G13 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1954 URS Team Ch – Round 7 – Simagin, Vladimir – 1-0 – Kopaev, Nikolay A – G113 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1956 URS Ch sf Tbilisi GEO – Round 5 – Antoshin, Vladimir S – 0-1 – Sakharov, Yuri G. – G4 1. d4 d5 2. c4 c6 3. Nc3 e6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1957 Santiago – Round ? – Kotov, Alexander. – 0-1 – Gutierrez Herrera, Jose Antonio – G20 1. c4 Nf6 2. Nc3 c6 3. d4 d5 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1958 Asztalos Memorial 1st – Round 4 – Bobotsov, Milko G – 1-0 – Plater, Kazimierz – G8 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1958 Kiev Ch – Round 12 – Sakharov, Yuri N – 1-0 – Platonov, Igor V – G55 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1959 Buenos Aires VC – Round 4 – Acosta Garcia, Rafael Isaac – 1-0 – Piazzini – G18 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1959 Clare Benedict Cup 06th – Round 5.2 – Scafarelli, Francesco – 0-1 – Schmid, Lothar – G36 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1959 URS-ch26 – Round 1 – Averbakh, Yuri L – 1/2-1/2 – Nikitin, Aleksander S – G1 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1960 Buenos Aires – Round 15 – Gligorić, Svetozar – 1-0 – Foguelman, Alberto – G153 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1960 Leningrad ch-URS – Round 12 – Averbakh, Yuri L – 1-0 – Gufeld, Eduard – G107 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1960 Varna – Round 7 – Bobotsov, Milko G – 1/2-1/2 – Zinn, Lothar – G11 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1962 Stockholm Interzonal – Round 1 – Uhlmann, Wolfgang – 1-0 – Pomar Salamanca, Arturo – G3 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1962 Whitby ch-BCF – Round 10 – Kottnauer, Cenek – 1/2-1/2 – Littlewood, John E – G99 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1963 Capablanca Memorial – Round 11 – Pachman, Ludek – 1-0 – Calero, Ivan – G97 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1963 DDR Ch 13th – Round 16 – Uhlmann, Wolfgang – 1-0 – Weber, Gerhard – G16 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1963 Winnipeg – Round 12 – Vaitonis, Povilas – 0-1 – Macskasy, Elod – G27 1. c4 Nf6 2. Nf3 c6 3. Nc3 d5 4. e3 e6 5. d4 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1964 Malaga – Round 9 – Toran Albero, Roman – 1-0 – Araujo Garcia, Taylor Javier – G43 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1966 Groningen – Round 11 – Pollak, Georg – 1-0 – Whiteley, Andrew Jonathan – G14 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1966 Groningen – Round 9 – Lombard, Andre – 0-1 – Whiteley, Andrew Jonathan – G12 1. c4 c6 2. Nf3 d5 3. d4 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1966 Tbilisi ch-URS – Round 10 – Liberzon, Vladimir M – 1/2-1/2 – Nei, Iivo – G88 1. c4 e6 2. Nf3 d5 3. d4 c6 4. e3 Nf6 5. Bd3 dxc4 6. Bxc4 Nbd7 7. Nc3 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1966 WchTJ U26 fin-A – Round 5 – Zara, Dan – 1-0 – Whiteley, Andrew Jonathan – G23 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1968 WchT U26 15. fin-B – Round 4 – McGrillen, Hugh – 1/2-1/2 – Whiteley, Andrew Jonathan – G15 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1969 New York ch-USA – Round 3 – Addison, Wiliam G – 1-0 – Bisguier, Arthur B – G13 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
1969 Pointe-Claire ch CAN – Round 8 – Vranesic, Zvonko – 1-0 – Biyiasas, Peter – G10 1. d4 d5 2. c4 c6 3. Nc3 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5
Petropolis Interzonal 1973 – Round 4 – Polugaevsky, Lev – 1-0 – Biyiasas, Peter – G16 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5

D48m — Meran, Reynolds (1946)

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 10.d5 e5

Les coups candidats

11.b3 — 66.7% (138 parties)

Ambassadeurs : Whiteley, Andrew Jonathan (4x), Biyiasas, Peter (3x), Zaric, Srboljub (3x), Averbakh, Yuri L (2x), Pacsay, Laszlo (2x), Sakharov, Yuri N (2x), Uhlmann, Wolfgang (2x), Polugaevsky, Lev (2x)

11.O-O — 28.0% (58 parties)

Ambassadeurs : Toth, Bela (2x), Kottnauer, Cenek (1x), Littlewood, John E (1x), Bobotsov, Milko G (1x), Zinn, Lothar (1x), Garcia R., Luis Ernesto (1x), Piazzini, Luis (1x), Scafarelli, Francesco (1x)

11.Bg5 — 2.9% (6 parties)

Ambassadeurs : Bobotsov, Milko G (1x), Partyka, Kazimierz (1x), MacGrillen, Hugh (1x), Whiteley, Andrew Jonathan (1x), McGrillen, Hugh (1x), Whiteley, Andrew J (1x), Kaloskambis, Mihail (1x), Trikaliotis, Georgios (1x)

11.Bc2 — 0.5% (1 parties)

Ambassadeurs : Beckers, Thomas (1x), Lettl, Gerhard (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	11.b3	11.O-O	11.Bg5	11.Bc2
<1800	7	71%	14%	—	—
1800-2200	45	53%	38%	—	2%
2200-2600	75	63%	35%	3%	—

Évolution par décennie (% des parties)

Décennie	N parties	11.b3	11.O-O	11.Bg5	11.Bc2
1950s	13	77%	15%	8%	—
1960s	28	75%	18%	7%	—
1970s	26	85%	8%	8%	—
1980s	37	78%	22%	—	—
1990s	43	63%	37%	—	—
2000s	35	46%	49%	3%	3%
2010s	20	55%	30%	—	—
2020s	5	40%	40%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
11.b3	55%	40%	▼ -15.0%
11.O-O	30%	40%	▲ +10.0%
11.Bg5	0%	0%	+0.0%
11.Bc2	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 1 partie

Parties historiques

11.b3 — 66.7% (138 parties)

1950 — Molnar, Istvan vs Gereben, Erno — 1/2-1/2 — Budapest HUN
1952 — Boleslavsky, Isaac vs Botvinnik, Mikhail — 1-0 — Voronovo
1953 — Ilivitsky, Georgy A vs Polugaevsky, Lev — 0-1 — Saratov
1953 — Abarashi, Seyed Mahyar vs Sokolsky, Alexey — 1-0 — USSR ch-02 5255
1953 — Doda, Zbigniew vs Regedzinski, Teodor — 1-0 — Poznan POL

11.O-O — 28.0% (58 parties)

1959 — Garcia R., Luis Ernesto vs Piazzini, Luis — 1-0 — Buenos Aires ARG
1959 — Scafarelli, Francesco vs Schmid, Lothar — 0-1 — Lugano SUI
1960 — Bobotsov, Milko G vs Zinn, Lothar — 1/2-1/2 — Varna BUL
1962 — Kottnauer, Cenek vs Littlewood, John E — 1/2-1/2 — Whitby ch-BCF
1963 — Vaitonis, Povilas vs Macskasy, Elod — 0-1 — Winnipeg CAN

11.Bg5 — 2.9% (6 parties)

1958 — Bobotsov, Milko G vs Partyka, Kazimierz — 1-0 — Balatonfured
1968 — MacGrillen, Hugh vs Whiteley, Andrew Jonathan — 1/2-1/2 — Ybbs
1968 — McGrillen, Hugh vs Whiteley, Andrew J — 1/2-1/2 — Ybbs
1978 — Rizzitano, James vs Lees, David — 0-1 — Worcester,MA
1979 — Kaloskambis, Mihail vs Trikaliotis, Georgios — 0-1 — Athens,Greece

11.Bc2 — 0.5% (1 parties)

2009 — Beckers, Thomas vs Lettl, Gerhard — 1/2-1/2 — Bayern

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