C50f — Italian: Hungarian Defence, 4.d4 exd4

1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.d4 exd4 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte d5, case forte g5, Bc4 actif, paire de fous, colonne d.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, 4 pièces non développées (B1, C1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nbd2 — Développer Nb1
● Be3 — Développer Bc1
● h3 — Empêcher ...Bg4
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), case forte b4, Be7 actif, paire de fous, colonne e.
Faiblesses adverses : Bc1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, 4 pièces non développées (G8, C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nf6 — Développer Ng8
● ...Na5 — Attaquer Bc4
● ...Bg4 — Clouer Nf3

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C50f — Hungarian Defence

1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.d4 exd4

Eval: [+0.43]

Les coups candidats

5.Nxd4 — 47.4% (1944 parties)

Ambassadeurs : San Claudio Gonzalez, Francisco Javier (9x), Thibaud, Corentin (7x), ? (6x), Kempa, Sabina (5x), Metaxasz, Vaszilisz (5x), Golcman, Evgeny (5x), Delorme, Axel (4x), Vaishali, Rameshbabu (4x)

5.c3 — 39.2% (1610 parties)

Ambassadeurs : Moody, David W (10x), Brattstrom Nilsson, Adam (6x), Erwich, Frank (4x), Erwich, Marc (4x), Delorme, Axel (4x), Crepan, Marjan (4x), Kaminska, Paulina (4x), Rogers, Cathy (3x)

5.O-O — 13.1% (537 parties)

Ambassadeurs : Koenigl, Anton (5x), Winter, Irene (3x), Hrcka, Pavol (3x), Paulsen, Louis (2x), Loewenthal, Johann (2x), Georghiou, Antonis (2x), Lantsias, Costas (2x), Jones, Leo (2x)

5.Bf4 — 0.1% (6 parties)

Ambassadeurs : Wesemann, Patrick (1x), Schlufter, Andre (1x), Holczer, Anett (1x), Doman Beata (1x), Benitez Irajusta Eduardo A (1x), Cardozo, Pedro (1x), Kaufman, Elliot (1x), Zubac, Michael (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.Nxd4	5.c3	5.O-O	5.Bf4
<1800	388	45%	41%	13%	0%
1800-2200	1624	44%	42%	13%	0%
2200-2600	406	50%	38%	13%	—
2600+	2	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5.Nxd4	5.c3	5.O-O	5.Bf4
1850s	5	—	40%	60%	—
1860s	3	—	33%	67%	—
1870s	1	—	—	100%	—
1880s	1	—	—	100%	—
1890s	2	100%	—	—	—
1900s	4	75%	25%	—	—
1910s	7	71%	—	29%	—
1920s	5	40%	—	60%	—
1930s	15	73%	20%	7%	—
1940s	11	82%	18%	—	—
1950s	18	56%	33%	11%	—
1960s	28	25%	57%	18%	—
1970s	44	41%	41%	18%	—
1980s	114	43%	33%	24%	—
1990s	860	48%	40%	12%	0%
2000s	1460	50%	36%	14%	0%
2010s	1336	44%	44%	11%	0%
2020s	191	51%	34%	15%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.Nxd4	44%	51%	▲ +7.1%
5.c3	44%	34%	▼ -10.7%
5.O-O	11%	15%	▲ +3.7%
5.Bf4	0%	0%	-0.1%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 1 partie
Alekhine, Alexander — 1 partie
Kasparov, Garry — 1 partie

Parties historiques

5.Nxd4 — 47.4% (1944 parties)

1895 — Bird, Henry vs Mieses, Jacques — 1/2-1/2 — Hastings ENG
1896 — Cigorin, Michael Ivanovic vs Walbrodt, Carl — 0-1 — Nuerenberg GER
1901 — Jurgens Emil vs Abersten Simon — 0-1 — Goteborg SWE
1904 — Lane, William Woodhouse vs Hanning, John Rowland — 1/2-1/2 — St Georges CC
1907 — Leonhardt, Paul vs Schlechter, Carl — 1/2-1/2 — Copenhagen DEN

5.c3 — 39.2% (1610 parties)

1850 — Cochrane, John Miles vs Bonnerjee, Mohishunder — 0-1 — Calcutta IND
1855 — Cochrane, John Miles vs Bonnerjee, Mohishunder — 1-0 — Calcutta IND
1868 — Zukertort, Johannes vs Mayet, Carl — 1-0 — ?
1909 — Borras Schulz, Konrad vs Lehnert, Anna-Victoria — 1-0 — ?
1930 — Kostic, Boris vs Maas, A. — 1-0 — Nice FRA

5.O-O — 13.1% (537 parties)

1856 — Owen, John vs Horowitz, Bernhard — 1-0 — London ENG
1856 — Staunton, Howard vs Loewenthal, Johann — 1-0 — London m3 London ENG
1856 — Cunningham, Aidan vs Loewenthal, Johann — 1-0 — London ENG
1864 — Paulsen, Louis vs Knorre, Viktor — 1-0 — Berlin GER
1865 — Paulsen, Louis vs Knorre, Victor — 1-0 — Leipzig GER

5.Bf4 — 0.1% (6 parties)

1994 — Holczer, Anett vs Doman Beata — 0-1 — Paks HUN
1995 — Wesemann, Patrick vs Schlufter, Andre — 0-1 — GER
1999 — Benitez Irajusta Eduardo A vs Cardozo, Pedro — 1-0 — ?
2004 — Kaufman, Elliot vs Zubac, Michael — 0-1 — Kapuskasing
2006 — Teixeira, William de Almeida vs Oliveira, Emerson Ferreira De — 0-1 — Vitoria BRA

	♔ Blancs	♚ Noirs
Pions doublés	—	● d4, ● d7
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1), ● d5 (2v0), ● g5 (2v1)	● b4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (2v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bc4	● Bc4 Actif (mob. 9)
Be7		● Be7 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (b1, c1, a1, h1)	4 (g8, c8, 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	semi-ouvert
Ruptures	● c2-c3, ● e4-e5	● …d7-d6, ● …d7-d5, ● …f7-f6, ● …f7-f5

Partie
1907 Copenhagen Nordic – Round ? – Leonhardt, Paul – 1/2-1/2 – Schlechter, Carl – G8 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 d6 6. Nc3 Nf6 7. O-O O-O 8. Bf4 Ne5 9. Bb3 c6 10. Qe2 Qc7
1913 Havana – Round 1 – Blanco Estera, Rafael – 1/2-1/2 – Chajes, Oscar – G41 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. O-O d6 6. Nxd4 Nf6 7. Nxc6 bxc6 8. Nc3 O-O 9. h3 Be6 10. Bd3 Rb8
1914 Baden – Round 1 – Fahrni, Hans – 0-1 – Breyer, Gyula – G27 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. O-O d6 6. Nxd4 Nf6 7. Nc3 O-O 8. Nxc6 bxc6 9. Qd3 Ng4 10. f4 d5
1914 Baden – Round 1 – Johner, Paul – 1/2-1/2 – Schlechter, Carl – G28 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 d6 6. O-O Nf6 7. Nc3 O-O 8. Re1 Re8 9. h3 Bf8 10. f4 d5
1914 Baden – Round 1 – Opocensky, Karel – 1/2-1/2 – Schlechter, Carl – G31 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 d6 6. O-O Nf6 7. Nc3 O-O 8. Bd5 Bd7 9. Be3 Re8 10. Qd2 Bf8
1919 NLD tour sim – Round ? – Reti, Richard – 1/2-1/2 – Fontein, George – G13 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 d6 6. O-O Nf6 7. Nc3 O-O 8. h3 Re8 9. b3 Bf8 10. Bb2 Ne5
1924 Paris FRA – Round 1 – Tarrasch, Siegbert – 1-0 – Von Holzhausen, Walther – G1 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 Nf6 6. Nc3 d6 7. O-O O-O 8. Re1 Re8 9. b3 Nd7 10. Bxf7+ Kxf7
1925 Berlin/Budapest/Prag/Wien – Round 5 – Duehrssen, Rudolf – 0-1 – Von Balla, Zoltan – G13 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 d6 6. O-O Nf6 7. Re1 O-O 8. Nc3 h6 9. f3 Re8 10. Be3 Bf8
1930 Nice – Round 11 – Kostic, Boris – 1-0 – Maas, A. – G40 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 d3 6. Qb3 Na5 7. Bxf7+ Kf8 8. Qa4 Kxf7 9. Qxa5 d6 10. Qd5+ Be6
1931 Trebitsch Memorial 14th – Round 10 – Mueller, Hans – 1-0 – Steiner, Lajos – G19 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 d6 6. O-O Nf6 7. Nc3 O-O 8. Re1 Re8 9. Bg5 h6 10. Bh4 Ne5
1935 Mollet – Round 2 – Calduch J – 1/2-1/2 – Koltanowski, George – G7 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 d6 6. Nxc6 bxc6 7. O-O Nf6 8. Nc3 O-O 9. Bg5 h6 10. Bh4 Rb8
1938 Paris L'Echiquier – Round 15 – Monosson, Leon – 1-0 – Romih, Max – G42 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. e5 Ne4 8. Qf3 f5 9. Qxf5 d5 10. Qf3 Bc5
1945 Novi Sad – Round 8 – Kostic, Boris – 1/2-1/2 – Subaric, Mladen – G102 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. Nxd4 d6 6. Nc3 Nf6 7. O-O O-O 8. h3 Nxd4 9. Qxd4 c6 10. a4 Ne8
1953 Zagreb – Round 5 – Marić, Rudolf – 0-1 – Janosevic, Dragoljub – G55 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 dxc3 6. Qd5 Nh6 7. Bxh6 O-O 8. Bc1 Nb4 9. Qh5 d5 10. exd5 Nc2+
1954 Bucharest – Round 6 – Paoli, Enrico – 0-1 – Szabo, Stefan – G60 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 d6 6. O-O Nf6 7. Nc3 O-O 8. f3 Nxd4 9. Qxd4 Be6 10. Be3 Qc8
1957 Warchau ch POL – Round 13 – Witkowski, Stefan – 1/2-1/2 – Kmita, Zbigniew – G70 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 d6 6. O-O Nf6 7. Nc3 O-O 8. h3 Bd7 9. b3 Nxd4 10. Qxd4 Bc6
1958 Munich olm prel – Round 1 – Palmiotto, Fiorentino – 0-1 – De Loughry, Desmond – G6 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 d5 6. exd5 Nb8 7. Ne5 Bd6 8. cxd4 Nf6 9. O-O O-O 10. Bg5 Nbd7
1958 YUG Ch sf – Round 12 – Karanjac I – 1/2-1/2 – Udovcic, Mijo – G39 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 Nf6 6. e5 Ng4 7. cxd4 d5 8. Bb3 h5 9. Nc3 Be6 10. h4 Nh6
1960 Leipzig olm fin-C – Round 11 – Palmiotto, Fiorentino – 1-0 – Gabriel Jimenez, Jesus Omar – G67 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 dxc3 6. Qb3 Nf6 7. Bxf7+ Kf8 8. Ng5 Ne5 9. f4 Nxe4 10. fxe5 cxb2
1961 URU Ch – Round ? – Estrada Degrandi, Walter – 1-0 – Varlotta, A. – G12 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 Na5 6. Bd3 dxc3 7. Nxc3 d6 8. e5 Nc6 9. exd6 cxd6 10. Bf4 Nf6
1962 Corr – Round 1 – Handler Brotons, Juan Carlos – 1-0 – Kinnmark, Ove – G14 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 dxc3 6. Qd5 Nh6 7. Bxh6 O-O 8. Nxc3 gxh6 9. Qh5 d6 10. Qxh6 Ne5
1962 It Bamberg GER – Round 8 – Pfleger, Helmut, Dr. – 1/2-1/2 – Scheipl, Ralf – G40 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 Nf6 6. Nc3 O-O 7. O-O d6 8. Re1 Nxd4 9. Qxd4 c6 10. Bf4 b5
1968 Prague U26 – Round 5 – Zajic, Jiri – 1/2-1/2 – Novacek, Josef – G22 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 d6 6. cxd4 Nf6 7. Nc3 O-O 8. Bb3 Bg4 9. O-O Na5 10. Bc2 c5

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