C49p — Four Knights: Symmetrical, Metger, 10.d4 Ne6

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 Ne6 * ○ 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.

Côté adverse. Le fou enfermé en c8.

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 la case forte f4 et un avant-poste en f4.

Côté adverse. Le pion isolé a2.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...Bg4 (Développer Bc8, 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	—	● f4 (2v1)
Cases faibles	—	—
Centre	● d4 (3v2), ● e5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	—

Pièces

	♔ Blancs	♚ Noirs
Bb5	● Bb5 Actif (mob. 9)
Bg5	● Bg5 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	Non
Non développées	1 (a1)	2 (c8, 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
1907 Karlsbad – Round 1 – Důras, Oldřich – 0-1 – Rubinstein, Akiba – G143 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 Ne6
1907 Lodz POL – Round 1 – Znosko-Borovsky, Eugene – 1-0 – Salwe, Georg H S – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Ne6
1907 Ostende II – Round 12 – Shoosmith, Hector W – 0-1 – Perlis, Julius – G149 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 Ne6
1907 Vienna – Round 12 – Wolf Heinrich – 0-1 – Vidmar, Milan Sr – G51 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 Ne6
1908 Prague – Round 1 – Maroczy, Geza – 1-0 – Treybal, Frantisek – G20 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 Ne6
1908 Vienna – Round 11 – Teichmann, Richard – 1-0 – Cohn, Erich – G114 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 Ne6
1909 All-Russian – Round 1 – Romanovsky, Pjotr – 1-0 – Maliutin, Boris – G1 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 Ne6
1909 BCF Ch 6th – Round 10 – Sergeant, Edward – 0-1 – Ward, William 2001 – G42 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 Ne6
1909 St Petersburg – Round 1 – Znosko-Borovsky, Eugene – 1-0 – Freiman, Sergey Nikolaevich – G78 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 Ne6
1911 Karlsbad – Round ? – Spielmann, Rudolf – 1-0 – Rubinstein, Akiba – G306 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 Ne6
1911 San Sebastian – Round 13 – Tarrasch, Siegbert – 1/2-1/2 – Janowski, Dawid – G82 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 Ne6
1912 DSB-18.Kongress-B – Round 1 – Maliutin, Dmitrii – 1-0 – Asztalos, Lajos – G3 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 Ne6
1939 Buenos Aires ol f-A – Round 2 – Apscheneek, Fricis – 1-0 – Raud, Ilmar – G38 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 Ne6
1939 Buenos Aires ol prel-C – Round 6 – Tautvaisas, Povilas – 1/2-1/2 – Sorensen, Ernst Leismann – G20 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 Ne6
1939 Leningrad ch-URS – Round 9 – Botvinnik, Mikhail – 1-0 – Panov, Vasily – G75 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 Ne6
1940 Moskou ch-URS – Round 1 – Levenfish, Grigory – 1/2-1/2 – Lisitsin, Georgy – G106 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 Ne6
1946 Zagreb ch YUG – Round 12 – Simonovic, Borko – 1-0 – Rabar, Braslav – 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 Ne6
1950 Mar del Plata – Round 12 – Maderna, Carlos – 1-0 – Michel, Pascal – G104 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 Ne6
1956 Marianske Lazne/Praha – Round 18 – Fichtl, Jiri – 1-0 – Beni, Alfred – G53 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 Ne6
1960 Leipzig olm prel – Round 3 – Persitz, Raaphi – 1-0 – Garcia Soler, Juan – G101 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Bg5 Qe7 9. Re1 Nd8 10. d4 Ne6
1966 Moscow RUS – Round 1 – Kozlov, Vladimir N – 0-1 – Lilienthal, Andor – G6 1. e4 e5 2. Nc3 Nf6 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 Ne6
1969 Schwerin – Round 1 – Neukirch, Detlef – 1/2-1/2 – Hennings, Artur – G29 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 Ne6
7. World Team Championship 2010 – Round 5 – Radjabov, Teimour – 1-0 – Amin, Bassem – G86 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 Ne6
Hoogovens Blitz 1998 – Round 2 – Shirov, Alexei – 0-1 – Salov, Valery – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bb4 5. O-O d6 6. d3 O-O 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Ne6
Interpolis 1991 – Round 6 – Kamsky, Gata – 1-0 – Timman, Jan H – G20 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 Ne6

C49p — Symmetrical Metger

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 Ne6

Eval: [+0.45]

Les coups candidats

11.Bc1 — 79.4% (959 parties)

Ambassadeurs : Khamatgaleev, Alexej (9x), Jovanovic, Bratislav M (7x), Istratescu, Andrei (7x), Nunn, John D M (6x), Wolf Heinrich (5x), Vidmar, Milan Sr (5x), Jussupow, Artur (5x), Notkin, Maksim (5x)

11.Bd2 — 13.7% (166 parties)

Ambassadeurs : Girya, Olga (4x), Efroimski, Marsel (4x), Kadric, Denis (4x), Pereira, Edgar Teixeira de L (3x), Mut Company, Guillem (3x), Kapusta, Petr (3x), Raud, Ilmar (2x), Smagin, Sergey (2x)

11.Bh4 — 5.6% (68 parties)

Ambassadeurs : Hartikainen, Markku (3x), Iuldachev, Saidali (3x), Morel, Fernand (2x), Sliwa, Bogdan (2x), Rause, Olita (2x), Pulito, Alberto (2x), Brunello, Sabino (2x), Daurelle, Herve (2x)

11.Qd2 — 0.5% (6 parties)

Ambassadeurs : Smellie, Gabriel (1x), Ancelle Boucher, Violette (1x), Perkins, Frank Kendall (1x), Janowski, Dawid (1x), Serrano Felipe, Rafael (1x), Dosseti Saidman, Ricardo (1x), Veber, Richard (1x), Papp, Nandor (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	11.Bc1	11.Bd2	11.Bh4	11.Qd2
<1800	18	61%	28%	6%	6%
1800-2200	282	75%	17%	6%	1%
2200-2600	592	80%	15%	5%	—
2600+	30	67%	27%	7%	—

Évolution par décennie (% des parties)

Décennie	N parties	11.Bc1	11.Bd2	11.Bh4	11.Qd2
1900s	24	96%	—	—	—
1910s	20	90%	—	—	10%
1920s	11	100%	—	—	—
1930s	14	86%	14%	—	—
1940s	23	100%	—	—	—
1950s	26	92%	—	8%	—
1960s	15	93%	7%	—	—
1970s	5	100%	—	—	—
1980s	31	94%	—	6%	—
1990s	292	88%	2%	8%	1%
2000s	334	85%	7%	7%	0%
2010s	368	61%	33%	4%	0%
2020s	45	73%	20%	7%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
11.Bc1	61%	73%	▲ +11.9%
11.Bd2	33%	20%	▼ -13.2%
11.Bh4	4%	7%	▲ +2.3%
11.Qd2	0%	0%	-0.3%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 3 parties
Alekhine, Alexander — 2 parties
Euwe, Max — 2 parties
Anand, Viswanathan — 2 parties
Tal, Mikhail — 1 partie
Smyslov, Vladimir — 1 partie
Karpov, Anatoly — 1 partie

Parties historiques

11.Bc1 — 79.4% (959 parties)

1906 — Wolf Heinrich vs Vidmar, Milan Sr — 1/2-1/2 — Nuerenberg GER
1906 — Perlis, Julius vs Wolf Heinrich — 1-0 — Ostend
1907 — Znosko-Borovsky, Eugene vs Salwe, Georg H S — 1-0 — Lodz POL
1907 — Důras, Oldřich vs Rubinstein, Akiba — 0-1 — Carlsbad CZE
1907 — Englund, Fritz vs Nyholm, Gustav — 0-1 — Stockholm SWE

11.Bd2 — 13.7% (166 parties)

1939 — Apscheneek, Fricis vs Raud, Ilmar — 1-0 — Buenos Aires ARG
1939 — Apscheneek, Fritzis vs Raud, Ilmar — 1-0 — Buenos Aires ARG
1966 — Kozlov, Vladimir N vs Lilienthal, Andor — 0-1 — Moscow RUS
1994 — Smagin, Sergey vs Naumkin, Igor — 1-0 — Amantea
1994 — Yemelin, Vasily vs Smagin, Sergey — 1/2-1/2 — St Petersburg RUS

11.Bh4 — 5.6% (68 parties)

1952 — Morel, Fernand vs Sliwa, Bogdan — 0-1 — Helsinki ol prel
1952 — Morel, Fernand vs Sliwa, Bogdan — 0-1 — Helsinki FIN
1983 — Juarez Flores, Carlos A. vs Guevara, C Francisco Javie — 1-0 — ?
1987 — Campanella, Dominique vs Lucet, Jerome — 1-0 — Ostende
1991 — Kamsky, Gata vs Timman, Jan H — 1-0 — Tilburg NED

11.Qd2 — 0.5% (6 parties)

1915 — Smellie, Gabriel vs Ancelle Boucher, Violette — 1-0 — USA
1916 — Perkins, Frank Kendall vs Janowski, Dawid — 1/2-1/2 — New York, NY USA
1997 — Serrano Felipe, Rafael vs Dosseti Saidman, Ricardo — 0-1 — Merida MEX
1999 — Veber, Richard vs Papp, Nandor — 0-1 — HUN
2008 — Ozturk, Hilal vs Kaplan, Ebru — 0-1 — Konya

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