C48n — Four Knights: Rubinstein, 5.Ba4 Nxf3+

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4 5.Ba4 Nxf3+ * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, case forte d5, Ba4 actif, paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre, pawn e5 en prise.
Problèmes : roi au centre, Bc1 enfermé, 3 pièces non développées (C1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4
● c3 — Préparer d4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : paire de fous.
Faiblesses adverses : Bc1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 4 pièces non développées (C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Be7 — Développer Bf8
● ...Bg4 — Clouer Nf3
● ...c6 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C48n — Rubinstein

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4 5.Ba4 Nxf3+

Eval: [+0.01]

Les coups candidats

6.Qxf3 — 93.6% (457 parties)

Ambassadeurs : Maros, Milan (7x), Istratescu, Andrei (6x), Yandemirov, Valeri (5x), Ornstein, Axel (5x), Borisenko, Georgy K (3x), Bhend, Edwin (3x), Yudasin, Leonid (3x), Ganguly, Surya Shekhar (3x)

6.gxf3 — 6.4% (31 parties)

Ambassadeurs : Canal, Esteban (2x), Willow, Jonah B (2x), O'Kelly de Galway, Alberic (1x), Nievergelt, Andreas (1x), Dubinin, Peter (1x), Maseev Leon Iosifovich (1x), Gubanov, Anton (1x), Yemelin, Vasily (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Qxf3	6.gxf3
<1800	13	100%	—
1800-2200	148	96%	4%
2200-2600	198	93%	7%
2600+	9	89%	11%

Évolution par décennie (% des parties)

Décennie	N parties	6.Qxf3	6.gxf3
1880s	2	100%	—
1900s	2	100%	—
1910s	2	100%	—
1920s	1	100%	—
1930s	1	100%	—
1940s	4	75%	25%
1950s	7	86%	14%
1960s	13	92%	8%
1970s	12	100%	—
1980s	13	100%	—
1990s	129	91%	9%
2000s	137	96%	4%
2010s	142	96%	4%
2020s	23	78%	22%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Qxf3	96%	78%	▼ -17.5%
6.gxf3	4%	22%	▲ +17.5%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 1 partie

Parties historiques

6.Qxf3 — 93.6% (457 parties)

1881 — Paulsen, Louis vs Schallopp, Emil — 1-0 — Berlin GER
1883 — Paulsen, Louis vs Mason, James — 0-1 — Nuerenberg GER
1906 — Janowski, Dawid vs Schlechter, Carl — 0-1 — Ostende
1906 — Janowski, Dawid vs Schlechter, Carl — 0-1 — Ostende
1912 — Nimzowitsch, Aron vs Perlis, Julius — 0-1 — San Sebastian ESP

6.gxf3 — 6.4% (31 parties)

1947 — Canal, Esteban vs O'Kelly de Galway, Alberic — 0-1 — Venice ITA
1952 — Canal, Esteban vs Nievergelt, Andreas — 1-0 — Zuerich Zurich SUI
1960 — Dubinin, Peter vs Maseev Leon Iosifovich — 1-0 — corr ch-SU
1992 — Nunn, John D M vs Cooper, Lawrence H — 1-0 — Walsall
1992 — Nikolenko, Oleg vs Solozhenkin, Evgeniy — 1-0 — RUS-chT Podolsk

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v1), ● d5 (2v1)	—
Cases faibles	—	—
Centre	● d5 (2v1), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Ba4	● Ba4 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn d7
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
Ruptures	● d2-d3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5

Partie
1906 Ostende – Round ? – Janowski, Dawid – 0-1 – Schlechter, Carl – G45 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Bb4 7. d3 O-O 8. O-O c6 9. Bg5 Be7 10. h3 d6
1906 Ostende – Round 1 – Janowski, Dawid – 0-1 – Schlechter, Carl – G35 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Bb4 7. d3 O-O 8. O-O c6 9. Bg5 Be7 10. h3 d6
1912 San Sebastian – Round 5 – Nimzowitsch, Aron – 0-1 – Perlis, Julius – G12 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Be7 7. Qg3 O-O 8. Qxe5 Re8 9. Qf4 Bb4 10. f3 b5
1932 Bad Sliac – Round 1 – Maroczy, Geza – 1/2-1/2 – Rohacek, Ivan – G71 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 d6 8. O-O Be7 9. h3 h6 10. Bb3 Be6
1949 Moscow Ch – Round 1 – Steinsapir, Yury – 1-0 – Ravinsky, Grigory – G37 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. O-O d6 8. h3 Be7 9. d3 O-O 10. Qe2 Be6
1949 Moscow RUS – Round 1 – Ravinsky, Grigory – 0-1 – Simagin, Vladimir – G25 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 d6 8. Bg5 Be7 9. O-O O-O 10. Qe2 Nxe4
1949 URS Ch, semi final – Round 14 – Kasparian, Genrikh – 0-1 – Solmanis, Zigfrids – G102 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 g6 8. Bb3 Bg7 9. Bg5 d6 10. h3 Be6
1950 Mar del Plata – Round 9 – Michel, Pascal – 1/2-1/2 – Bolbochan, J. – G75 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Bc5 7. d3 O-O 8. O-O d6 9. Bg5 c6 10. Bb3 h6
1953 Bucharest – Round 13 – Radulescu, Mihai – 1/2-1/2 – Stoltz, Gösta – G128 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Be7 7. d3 O-O 8. O-O d6 9. h3 Be6 10. Bb3 Qd7
1958 YUG Ch 13th – Round 13 – Lukic, Arsenije – 1/2-1/2 – Karaklajic, Nikola – G72 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. O-O d6 8. d3 Be7 9. Bb3 O-O 10. h3 Be6
1959 URS Team Ch – Round 1 – Goglidze, Viktor – 0-1 – Klovans, Janis – G88 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Be7 7. d3 O-O 8. O-O d6 9. h3 c6 10. Bb3 Be6
1960 Baltic Nations – Round 5 – Mikenas, Vladas – 1/2-1/2 – Borisenko, Georgy K – G11 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 Bc5 8. Bb3 d6 9. h3 Be6 10. Bd2 b5
1960 Leningrad Baltic Nat – Round 5 – Mikenas, Vladas – 1/2-1/2 – Borisenko, Georgy K – G8 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 Bc5 8. Bb3 d6 9. h3 Be6 10. Bd2 b5
1960 Madrid zt – Round 11 – Pachman, Ludek – 1/2-1/2 – Gligorić, Svetozar – G83 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. O-O d6 8. d3 Be6 9. Qe2 Nd7 10. Bb3 Nc5
1960 Varna Varna BUL – Round 12 – Milev, Zdravko – 1/2-1/2 – Trifunovic, Petar – G48 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Bc5 7. d3 O-O 8. Bg5 c6 9. Bb3 Be7 10. h3 d6
1966 Palma de Mallorca – Round 15 – Pfleger, Helmut, Dr. – 1/2-1/2 – Trifunovic, Petar – G91 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 d6 8. h3 Be7 9. Bg5 h6 10. Bxf6 Bxf6
1969 URS Team Ch Grozny – Round 1 – Bagirov, Vladimir – 1-0 – Nikitin, Aleksander S – G11 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Be7 7. Qg3 O-O 8. Qxe5 c6 9. O-O Ng4 10. Qg3 d5
Dortmund 1992 – Round 1 – Anand, Viswanathan – 1/2-1/2 – Ivanchuk, Vasyl – G8 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 d6 8. Bb3 Be7 9. Qe2 O-O 10. f4 Bg4
Dortmund 1992 – Round 5 – Kamsky, Gata – 1/2-1/2 – Adams, Michael – G27 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 c6 7. d3 d6 8. O-O Be7 9. Nd5 Nd7 10. Nxe7 Qxe7
Linares 1992 – Round 2 – Short, Nigel D – 0-1 – Beliavsky, Alexander G – G11 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Bc5 7. d3 c6 8. Bb3 d6 9. O-O h6 10. Be3 Bb6
Linares 1994 – Round 6 – Shirov, Alexei – 1-0 – Ivanchuk, Vasyl – G7 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Nxf3+ 6. Qxf3 Bb4 7. Ne2 O-O 8. c3 Ba5 9. h3 d5 10. d3 Bd7

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