Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d2→c3	● d6→c5, e7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1)	● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (2v1)	● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bc4	● Bc4 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (● b1, ● c1, ● 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	● d2-d4, ● e4-e5	● …d6-d5

B50p — Sicilian: 2.Nf3 d6 3.c3 Nf6 4.Bc4

1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Bc4 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Qe2 (Pression sur colonne e, Prépare O-O-O — 52 % des parties) ; d3 (Solidifier le centre — 27 % des parties) ; Qa4+ (Contrôle diagonale a4-e8, Prépare O-O-O — 10 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...e6 (Poussée — 52 % des parties) ; ...Nc6 (Développer b8 — 31 % des parties) ; ...Nxe4 (Cavalier centralisé en e4 — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1951 San Rafael – Round 8 – Bauza, Lorenzo – 1-0 – Corral, Hector – G8 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nxe4 5. Qa4+ Nc6 6. Bxf7+ Kxf7 7. Qxe4 e6 8. d4 Be7 9. dxc5 d5 10. Qe2 Rf8
1952 ITA-ch15 – Round 10 – Matteucci, Guido – 1/2-1/2 – Magrin, Antonio – G49 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nc6 5. Ng5 Ne5 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. d4 Nc6 9. dxc5 h6 10. Nf3 Nxe4
1952 Tampa US Open – Round 5 – Florido Moreno, Jonathan – 1-0 – Zalys, Ignas – G5 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nxe4 5. Qa4+ Nc6 6. Bxf7+ Kxf7 7. Qxe4 e6 8. d4 d5 9. Qf4+ Qf6 10. Qc7+ Kg8
1953 Hastings ch-BCF – Round 1 – Fazekas, Stephan – 0-1 – Newman Caceres, Reynaldo Adolfo – G11 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 e6 5. Qe2 Be7 6. d4 d5 7. Bb5+ Nc6 8. e5 Nd7 9. O-O a6 10. Ba4 cxd4
1957 Rio de Janeiro zt – Round 1 – Engels, Ludwig – 1/2-1/2 – Mangini, Jose Henrique de Mello – G48 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nc6 5. Qe2 Bg4 6. d3 g6 7. Nbd2 Bg7 8. h3 Bxf3 9. Nxf3 O-O 10. a3 d5
1959 Belgrade – Round 1 – Ugrinovic, Dragan – 1/2-1/2 – Tomovic, Vasilje – G32 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nc6 5. Qe2 Bg4 6. h3 Bh5 7. d3 e6 8. Nbd2 Be7 9. g4 Bg6 10. Nh4 d5
1962 Skopje ch17-YUG – Round 19 – Ugrinovic, Dragan – 1-0 – Buljovcic, Ivan – G112 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 e6 5. Qe2 Be7 6. d4 Qc7 7. O-O O-O 8. e5 Nfd7 9. Bf4 Nc6 10. Nbd2 a6
1962 Skopje ch17-YUG – Round 4 – Ugrinovic, Dragan – 1/2-1/2 – Bukic, Enver – G93 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 e6 5. Qe2 Be7 6. d4 O-O 7. Bd3 cxd4 8. cxd4 Nc6 9. Nc3 e5 10. d5 Nb4

B50p — Sicilian (1951)

1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Bc4

Les coups candidats

4…e6 — 51.6% (793 parties)

Ambassadeurs : Plat, Vojtech (22x), Jentsch, Dieter (13x), Krauseneck, Peter, Dr. (9x), Maximov, Dmitry (8x), Melamed, Tatjana (6x), Baklan, Vladimir (5x), Shevtsov, Nikoliy (5x), Maximov, Gordei D. (5x)

4…Nc6 — 30.6% (470 parties)

Ambassadeurs : Plat, Vojtech (8x), Sedina, Elena (7x), Tkachenko, Victor (7x), Siger, Csaba (7x), Marcelin, Cyril (4x), Kovacs, Laszlo (4x), Jahn, Constanze (4x), Maximov, Dmitry (4x)

4…Nxe4 — 10.4% (160 parties)

Ambassadeurs : Plat, Vojtech (7x), Marcuzzo, Giorgio (3x), Jaderholm, Bo (2x), Karlovich, Anastazia (2x), Cerveny, Martin (2x), Sigér, Csaba (2x), Florido, J (1x), Zalys, Ignas (1x)

4…g6 — 3.1% (47 parties)

Ambassadeurs : Jentsch, Dieter (2x), Ahmed Maher, Hamdy (2x), Faybish, Nimrod (1x), Fleischer, Uwe (1x), Collins, Richard (1x), Celis, Solomon B. III (1x), Wohl, Rami (1x), Broekmeulen, Jasper (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…e6	4…Nc6	4…Nxe4	4…g6
<1800	76	33%	30%	24%	8%
1800-2200	736	51%	30%	10%	4%
2200-2600	519	57%	32%	7%	1%
2600+	3	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	4…e6	4…Nc6	4…Nxe4	4…g6
1950s	10	30%	50%	20%	—
1960s	9	67%	22%	—	—
1970s	23	61%	22%	13%	—
1980s	45	51%	40%	7%	—
1990s	270	55%	30%	7%	2%
2000s	529	52%	29%	10%	4%
2010s	519	51%	33%	10%	2%
2020s	131	46%	25%	21%	6%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…e6	51%	46%	▼ -5.1%
4…Nc6	33%	25%	▼ -7.9%
4…Nxe4	10%	21%	▲ +10.6%
4…g6	2%	6%	▲ +3.8%

Parties historiques

4…e6 — 51.6% (793 parties)

1953 — Fazekas, Stephan vs Newman, Richard — 0-1 — Hastings ch-BCF
1957 — Brameyer, Hermann vs Troeger, Jochen — 1-0 — Ruhla
1958 — Ugrinovic, Dragan vs Vasiljevic, Milos — 1/2-1/2 — Tuzla
1962 — Ugrinovic, Dragan vs Bukic, Enver — 1/2-1/2 — Skopje ch17-YUG
1962 — Ugrinovic, Dragan vs Buljovcic, Ivan — 1-0 — Skopje ch17-YUG

4…Nc6 — 30.6% (470 parties)

1952 — Matteucci, Guido vs Magrin, Antonio — 1/2-1/2 — Ferrara
1957 — Rautenstrauch, Hans Hubert vs Wagner, Franz — 0-1 — Ruhla
1957 — Engels, Ludwig vs Mangini, Jose Henrique de Mello — 1/2-1/2 — Rio de Janeiro BRA
1957 — Mueller, Aaron vs Krause, Werner — 1-0 — cr.
1959 — Ugrinovic, Dragan vs Tomovic, Vasilje — 1/2-1/2 — Belgrade SRB

4…Nxe4 — 10.4% (160 parties)

1951 — Bauza, Lorenzo vs Corral, Hector — 1-0 — San Rafael
1952 — Florido, J vs Zalys, Ignas — 1-0 — Tampa US op
1972 — Winterton, Ken vs Angers, Gilles — 1-0 — Ottawa CAN
1978 — El Ageli Kamel, Mohamed vs Ferrao, Luis — 0-1 — Mexico City MEX
1979 — Krcmar, Zdenek vs Stejskal, Drahoslav — 1-0 — Loucovice

4…g6 — 3.1% (47 parties)

1993 — Bisco, Igor vs Assuncao, Jose Manuel Lopes Mach — 1-0 — Slovakia
1995 — Hietel, Dietmar vs Wehmeyer, Eckart — 1/2-1/2 — Darmstadt
1995 — Fama, Ariel vs Barquin, Juan Felipe — 1-0 — Argentina tt
1996 — Collins, Richard vs Celis, Solomon B. III — 1/2-1/2 — Erevan ARM
1998 — Wohl, Rami vs Broekmeulen, Jasper — 0-1 — Hengelo NED