A18l — English: Mikenas, Flohr, 7.d4 c5

1.c4 Nf6 2.Nc3 e6 3.e4 d5 4.e5 d4 5.exf6 dxc3 6.bxc3 Qxf6 7.d4 c5 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nf3 (Développer g1 — 99 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...h6 (55 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 39 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c3, ● c4	—
Pions isolés	● a2	—
Arriérés	—	—
Chaînes	● c3→d4	● f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● f5 (2v0)
Cases faibles	—	—
Centre	—	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b, ● e	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	5 (● g1, ● c1, ● f1, ● a1, ● h1)	5 (● b8, ● 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	● …e6-e5

Partie
1930 Frankfurt – Round 1 – Nimzowitsch, Aron – 1-0 – List, Paul – G1 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 Nc6 10. Be4 cxd4
1933 Folkestone Olympiad 5th – Round 13.19 – Opocensky, Karel – 1/2-1/2 – Duchamp, Marcel – G109 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 cxd4 10. cxd4 Bb4+
1934 BCF Ch 27th – Round 9 – Golombek, Harry – 1/2-1/2 – Alexander, Conol Hugh – G44 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 cxd4 10. cxd4 Bb4+
1935 Warsaw ol Warsaw POL – Round ? – Golombek, Harry – 1/2-1/2 – Koenig, Mirko – G35 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 cxd4 10. cxd4 Bb4+
1946 Pittsburgh Open – Round 1 – Bisguier, Arthur B – 1/2-1/2 – Shipman, Walter – G1 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 cxd4 10. cxd4 Bb4+
1947 ARG-ch26 Mayor – Round 4 – Marini, Luis – 0-1 – Benko, Francisco – G2 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. g3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+
1947 AUS Ch – Round 8.4 – Koshnitsky, Gregory – 1-0 – Stapleton, Ian – G7 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 cxd4 10. cxd4 Bb4+
1947 Buenos Aires ch-ARG – Round 1 – Alvarez Martin, Pedro – 0-1 – De Piro, Tristram – G16 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 cxd4 10. cxd4 Bb4+
1947 Buenos Aires ch-ARG – Round 1 – Benko, Francisco – 0-1 – Cruz Garibaldi, Milton Esteban – G20 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 Nc6 10. O-O Bd6
1947 Buenos Aires ch-ARG – Round 1 – Marini Speca, Gioia – 0-1 – Benko, Francisco – G17 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. g3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+
1947 Buenos Aires ch-ARG – Round 1 – Rebizzo, Cayetano – 0-1 – Piro, Valerio – G15 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 cxd4 10. cxd4 Bb4+
1947 Mar del Plata – Round 13 – Eliskases, Erich – 1/2-1/2 – Bolbochan, J. – G110 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 cxd4 10. cxd4 Bb4+
1951 Schlechter Memorial – Round ? – Lasker, Edward – 1/2-1/2 – Gruenfeld, Ernst – G3 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. Bg5 Qf5 10. cxd4 Bb4+
1953 POL-ch11 – Round 8 – Plater, Kazimierz – 1/2-1/2 – Brzozka, Stefan – G48 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+
1953 URS Ch sf Vilnius LTU – Round ? – Mikenas, Vladas – 1/2-1/2 – Cherepkov, Alexander V – G3 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 Bd6 10. O-O O-O
1954 Dyckhoff Memorial A 5456 – Round ? – Heemsoth, Hermann – 1/2-1/2 – O'Kelly de Galway, Alberic – G3 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Rb1 Bd6 10. Bd3 Qe7
1954 Mar del Plata – Round 10 – Shocron, Ruben – 0-1 – Dodero, Emilio – G77 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 Nd7 10. Qa4 Bd6
1957 WchT U26 04th – Round 6.4 – Yepez, Olavo – 1/2-1/2 – Sammalisto, L. – G80 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. a3 Nc6 10. g3 Bd6
1958 GBR Ch 45th – Round 7.11 – Thomas Andrew – 1-0 – Wise, Thomas H – G47 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 Nd7 10. O-O Bd6
1959 Argentina – Round 7 – Marini, Luis – 1/2-1/2 – Incutto, Carlos – G33 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 cxd4 10. cxd4 Bb4+
1959 Buenos Aires Ch – Round 6 – Marini, Luis – 1/2-1/2 – Wexler, Francisco – G21 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+
1959 Mar del Plata – Round 1 – Rossetto, Hector – 1/2-1/2 – Wexler, Bernardo – G16 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+
1959 Riga – Round ? – Mikenas, Vladas – 1-0 – Sliwa, Bogdan – G75 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 cxd4 10. cxd4 Bb4+
1963 CSR Ch sf – Round 10.5 – Stulik, Vlastimil – 1/2-1/2 – Necesany, Zdenek – G45 1. c4 e6 2. Nc3 Nf6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. Bg5 Qg6 10. Bd3 Qh5
1963 LAT Ch – Round ? – Kirilov, Valentins – 1/2-1/2 – Klovans, Janis – G2 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+
1964 Buenos Aires – Round 17 – Letelier Martner, Rene – 1/2-1/2 – Foguelman, Alberto – G148 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 cxd4 10. cxd4 Bb4+
1964 CAN-op – Round 2 – Sarosy, Zoltan L – 1-0 – Cowan, William – G2 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 b6 9. Bg5 Qf5 10. Bd3 Qg4
1964 URS – Round ? – Stoliar, Efim Samoilovich – 1/2-1/2 – Estrin, Yakov – G4 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. a3 b6 9. Be2 Bb7 10. Bf3 Bxf3
1966 Corr ICCF M – Round ? – Pecerskij, A – 1-0 – Schrancz, Istvan – G1 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. Bg5 Qf5 10. cxd4 Bb4+
1966 Sao Paulo CXSP Ch – Round 7 – Schweber, Samuel – 1/2-1/2 – Rocha, Antonio – G8 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 Nc6 10. Bc2 cxd4
1967 Hungary CCC-8 – Round ? – Vecsey, Dr. Zoltan – 0-1 – Schrancz, Istvan – G2 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 Bd6 10. O-O O-O
1967 Toronto Closed – Round 10 – Sarosy, Zoltan L – 0-1 – Allan, Denis – G10 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Bd3 cxd4 10. cxd4 Bb4+
1967 URS Team Ch – Round 1 – Muratov, Vladimir A – 1/2-1/2 – Klovans, Janis – G6 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. Bg5 Qf5 10. cxd4 Bb4+
1968 Havirov – Round 13 – Baumgartner, Heinz – 1-0 – Novak, Ervin – G43 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 h6 9. Be2 Bd6 10. Nd2 Qg6
1968 ROM Ch – Round 19 – Zara, Dan – 1/2-1/2 – Ghizdavu, Dumitru – G108 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 c5 8. Nf3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+

A18l — Mikenas, Flohr (1930)

1.c4 Nf6 2.Nc3 e6 3.e4 d5 4.e5 d4 5.exf6 dxc3 6.bxc3 Qxf6 7.d4 c5

Les coups candidats

8.Nf3 — 99.2% (784 parties)

Ambassadeurs : Auvinen, Esa (6x), Klovans, Janis (4x), Mikenas, Vladas (3x), De Lange, Daan (3x), Hahn, Winfried, Prof. Dr. (3x), Backe, Peter (3x), Radulov, Ivan (3x), Goetz, Dieter (3x)

8.a3 — 0.4% (3 parties)

Ambassadeurs : Stoliar, Efim Samoilovich (1x), Estrin, Yakov (1x), Kaczmarczyk, Dennis (1x), Moshtael, Wesal (1x), Mordido, Kylen Joy (1x), Baclayon, Me Ann Joy (1x)

8.Ba3 — 0.3% (2 parties)

Ambassadeurs : Docampo Beltran, Dexter (1x), Santiago Garcia, Diego Alejandro (1x), Herega, Nejc (1x), Veselic, Maks (1x)

8.Rb1 — 0.1% (1 parties)

Ambassadeurs : Rodriguez, Jose Manuel (1x), Jose Antonio Macia (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Nf3	8.a3	8.Ba3	8.Rb1
<1800	39	97%	3%	—	—
1800-2200	287	99%	0%	1%	—
2200-2600	251	100%	—	—	—
2600+	4	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8.Nf3	8.a3	8.Ba3	8.Rb1
1950s	15	100%	—	—	—
1960s	24	96%	4%	—	—
1970s	64	100%	—	—	—
1980s	118	100%	—	—	—
1990s	156	99%	—	—	1%
2000s	181	99%	1%	—	—
2010s	176	99%	1%	1%	—
2020s	56	98%	—	2%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Nf3	99%	98%	▼ -0.6%
8.a3	1%	0%	▼ -0.6%
8.Ba3	1%	2%	▲ +1.2%
8.Rb1	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Kasparov, Garry — 2 parties
Tal, Mikhail — 1 partie

Parties historiques

8.Nf3 — 99.2% (784 parties)

1951 — Mikenas, Vladas vs Magergut, Alexander Zinovievich — 1-0 — Riga LAT
1951 — Lasker, Edward vs Gruenfeld, Ernst — 1/2-1/2 — Vienna AUT
1953 — Mikenas, Vladas vs Cherepkov, Alexander V — 1/2-1/2 — URS-ch sf Vilnius LTU
1953 — Partyka, Kazimierz vs Brzozka, Stefan — 1/2-1/2 — Krakow POL
1954 — Heemsoth, Hermann vs O'Kelly de Galway, Alberic — 1/2-1/2 — Dyckhoff Memorial A 5456

8.a3 — 0.4% (3 parties)

1964 — Stoliar, Efim Samoilovich vs Estrin, Yakov — 1/2-1/2 — Soviet Union
2003 — Kaczmarczyk, Dennis vs Moshtael, Wesal — 0-1 — ?
2014 — Mordido, Kylen Joy vs Baclayon, Me Ann Joy — 1-0 — San Antonio, TX USA

8.Ba3 — 0.3% (2 parties)

2018 — Docampo Beltran, Dexter vs Santiago Garcia, Diego Alejandro — 1/2-1/2 — Camaguey CUB
2024 — Herega, Nejc vs Veselic, Maks — 1/2-1/2 — Nova Gorica SLO

8.Rb1 — 0.1% (1 parties)

1992 — Rodriguez, Jose Manuel vs Jose Antonio Macia — 1/2-1/2 — ?

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