C49o — Four Knights: Symmetrical, Metger, Capablanca Variation

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8 10.d4 Bg4 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur des fous actifs en b5 et g5, la paire de fous et la colonne semi-ouverte b.

En contrepartie. Le pion isolé a2.

Plans. h3 (Empêcher ...Bg4) ; Tour sur colonne b.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur un fou actif en g4.

Côté adverse. Le pion isolé a2.

Plans. ...Bg4 (Clouer Nf3) ; ...c6 (Rupture) ; ...c5 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c2, ● c3	—
Pions isolés	● a2	—
Arriérés	—	—
Chaînes	● c3→d4	● d6→e5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (3v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	—

Pièces

	♔ Blancs	♚ Noirs
Bb5	● Bb5 Actif (mob. 9)
Bg5	● Bg5 Actif (mob. 7)
Bg4		● Bg4 Actif (mob. 7)
Paire de fous	● Oui	Non
Non développées	1 (a1)	1 (a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c3-c4, ● d4-d5	● …c7-c6, ● …c7-c5, ● …d6-d5

Partie
1906 DSB-15.Kongress – Round 17 – Wolf Heinrich – 1-0 – Cohn, Erich – G101 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1916 New York Rice prel – Round 7 – Bernstein, Jacob – 0-1 – Capablanca, Jose – G17 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1922 Hastings Premier /23 3rd – Round 6 – Drewitt, John Arthur James – 1-0 – Rubinstein, Akiba – G17 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1922 Hastings Six-Masters – Round ? – Bogoljubow, Efim – 0-1 – Rubinstein, Akiba – G26 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1922 Teplitz-Schoenau – Round 11 – Wolf, Hans-Josef – 0-1 – Rubinstein, Akiba – G76 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1923 Maehrisch Ostrau – Round 3 – Tarrasch, Siegbert – 0-1 – Rubinstein, Akiba – G18 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1923 Petrograd ch-URS – Round 3 – Bohatyrchuk, Fedir Parfenovych – 1-0 – Vigodchikov, Konstantin A – G10 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 Qe7 8. Bg5 d6 9. Re1 Nd8 10. d4 Bg4
1925 BCF Ch 18th – Round 6 – Tylor, Theodore Henry – 1-0 – Moses, George Wyville – G25 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1925 Wiesbaden – Round ? – Spielmann, Rudolf – 1-0 – Schories, Georg – G12 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1940 Buenos Aires – Round 1 – Bartis Bosch, Josep – 0-1 – Guimard, Jean Louis – G24 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 Qe7 8. Bg5 d6 9. Re1 Nd8 10. d4 Bg4
1950 URS Ch sf – Round 1 – Petrosian, Tigran A. – 0-1 – Furman, Slavomir – G4 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1952 Helsinki olm – Round 1 – Bhend, Edwin – 0-1 – Bisguier, Arthur B – G260 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1955 CSR Ch – Round 8 – Betak Miroslav – 0-1 – Sefc, Jan – G65 1. e4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1955 Moscow Ch – Round 15 – Lebedev, Boris – 0-1 – Estrin, Yakov – G91 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 Qe7 8. Re1 d6 9. Bg5 Nd8 10. d4 Bg4
1956 Corr W-02ch – Round ? – Batik, Frantisek – 1-0 – Ragozin, Viacheslav – G18 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1956 Corr W-02ch – Round ? – Lundqvist, Ake – 1/2-1/2 – Endzelins, Lucius – G17 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1956 Marianske Lazne/Praha – Round 1 – Dworzynski, Roman – 1/2-1/2 – Sefc, Jan – G4 1. e4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. Bb5 Bb4 5. d3 d6 6. O-O Bxc3 7. bxc3 O-O 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1957 Leningrad Ch – Round 2 – Nikitin, Aleksander S – 1-0 – Estrin, Yakov – G18 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1959 Corr – Round 1 – Lundqvist, Ake – 1/2-1/2 – Ragozin, Viacheslav – G26 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Bg4
1959 Providence – Round 1 – Barry Bertomeu, Enrique – 1-0 – Alvarez March, Aleix – G19 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. d3 d6 6. O-O Bxc3 7. bxc3 O-O 8. Re1 Qe7 9. Bg5 Nd8 10. d4 Bg4
1966 Santa Monica – Round 1 – Ivkov, Borislav – 0-1 – Portisch, Lajos – G9 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1966 Santa Monica – Round 1 – Ivkov, Borislav – 1/2-1/2 – Unzicker, Wolfgang – G8 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1968 Palma de Mallorca – Round 15 – Ivkov, Borislav – 1/2-1/2 – Gligorić, Svetozar – G136 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1969 POL Ch 26th – Round 12 – Kwasniewski, Janusz – 1/2-1/2 – Sydor, Andrzej – G60 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4
1969 Rubinstein Memorial – Round 6 – Bagirov, Vladimir – 1/2-1/2 – Sydor, Andrzej – G37 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4

C49o — Symmetrical Metger Capablanca Variation

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 Qe7 9.Re1 Nd8 10.d4 Bg4

Eval: [+0.47]

Les coups candidats

11.h3 — 88.5% (207 parties)

Ambassadeurs : Rubinstein, Akiba (6x), Ivkov, Borislav (4x), Unzicker, Wolfgang (4x), Marek, Stanislav (4x), Lundqvist, Ake (3x), Gligoric, Svetozar (3x), Tarrasch, Siegbert (2x), Drewitt, John Arthur James (2x)

11.Bf1 — 2.6% (6 parties)

Ambassadeurs : Capablanca, Jose (2x), Bernstein, Jacob (1x), Bernstein, Ossip (1x), Post, Erhard (1x), Vordank, Kurt (1x), Dworzynski, Roman (1x), Sefc, Jan (1x), Letzelter, Jean-Claude (1x)

11.d5 — 2.1% (5 parties)

Ambassadeurs : Ahmad Sarena Lin, Shan (1x), Ton Nu Hong An (1x), Granaldi, Alessandro (1x), Naumkin, Igor (1x), Skytte, Rasmus (1x), Lund, Silas (1x), Sadykov, Vadim F. (1x), Amirkhanov, Roustem (1x)

11.Rb1 — 1.7% (4 parties)

Ambassadeurs : Johner, Hans (1x), Willaert, Robert (1x), Johnson, Ed (1x), Caherec, Emmanuel (1x), Swijsen, Lars (1x), Cox, Jan (1x), Gomez Benitez, David Isaac (1x), Morant Amezaga, Elies (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	11.h3	11.Bf1	11.d5	11.Rb1
<1800	4	75%	—	—	—
1800-2200	51	84%	—	2%	4%
2200-2600	97	92%	1%	3%	—
2600+	4	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	11.h3	11.Bf1	11.d5	11.Rb1
1900s	1	100%	—	—	—
1910s	4	50%	50%	—	—
1920s	15	87%	7%	—	—
1930s	1	100%	—	—	—
1940s	1	100%	—	—	—
1950s	11	73%	9%	—	9%
1960s	9	100%	—	—	—
1970s	9	78%	11%	—	—
1980s	17	100%	—	—	—
1990s	50	94%	2%	—	—
2000s	54	85%	—	7%	2%
2010s	50	86%	—	2%	4%
2020s	12	100%	—	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
11.h3	86%	100%	▲ +14.0%
11.Bf1	0%	0%	+0.0%
11.d5	2%	0%	▼ -2.0%
11.Rb1	4%	0%	▼ -4.0%

Parties historiques

11.h3 — 88.5% (207 parties)

1906 — Wolf Heinrich vs Cohn, Erich — 1-0 — Nuerenberg GER
1919 — Capablanca, Jose vs Edmund Tom Jesty — 1-0 — Hastings ENG
1919 — Lasker Md Nazmul, Islam vs Bergman Olsson, Eleonora — 1-0 — Los Angeles, CA USA
1920 — Wainwright snr, George Edward vs Gibson, William — 0-1 — Edinburgh, McEwan Hall
1922 — Drewitt, John Arthur James vs Rubinstein, Akiba — 1-0 — Hastings Town Hall

11.Bf1 — 2.6% (6 parties)

1916 — Bernstein, Jacob vs Capablanca, Jose — 0-1 — New York, NY USA
1916 — Bernstein, Ossip vs Capablanca, Jose — 0-1 — New York, NY USA
1924 — Post, Erhard vs Vordank, Kurt — 1/2-1/2 — Eisenach
1956 — Dworzynski, Roman vs Sefc, Jan — 1/2-1/2 — Marianske Lazne
1972 — Letzelter, Jean-Claude vs Rubinetti, Jorge — 0-1 — Skopje MKD

11.d5 — 2.1% (5 parties)

2005 — Ahmad Sarena Lin, Shan vs Ton Nu Hong An — 0-1 — Thailand
2006 — Granaldi, Alessandro vs Naumkin, Igor — 0-1 — Porto San Giorgio ITA
2008 — Skytte, Rasmus vs Lund, Silas — 1/2-1/2 — Denmark
2008 — Sadykov, Vadim F. vs Amirkhanov, Roustem — 1/2-1/2 — Kazan RUS
2014 — Tasdogen, Dincer vs Yaver, Faik Emre — 1/2-1/2 — Kemer TUR

11.Rb1 — 1.7% (4 parties)

1955 — Johner, Hans vs Willaert, Robert — 1-0 — Mont Pelerin sur Vevey
2000 — Johnson, Ed vs Caherec, Emmanuel — 0-1 — ?
2011 — Swijsen, Lars vs Cox, Jan — 1/2-1/2 — Houffalize
2011 — Gomez Benitez, David Isaac vs Morant Amezaga, Elies — 0-1 — Mislata

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