Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d6
Chaînes	—	● d6→e5
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (3v0), ● d5 (2v1), ● f5 (2v1)	● g4 (2v1)
Cases faibles	● d4	—
Centre	● d5 (2v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 5)
Be3	● Be3 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (● f1, ● 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	● f2-f4	● …d6-d5

B56p — Sicilian: Open, 2…d6, 5.Nc3 Nc6 6.Be3 e5

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be3 e5 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nb3 (51 % des parties) ; Nf3 (32 % des parties) ; Ndb5 (10 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Be7 (Développer f8 — 47 % des parties) ; ...Be6 (Fou actif (mobilité 9), Développer c8 — 25 % des parties) ; ...h6 (10 % des parties) ; ...a6 (Préparer expansion aile dame — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1951 Luzern Christmas 5152 5th – Round 2 – Paoli, Enrico – 1/2-1/2 – Unzicker, Wolfgang – G3 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Nxc6 bxc6 8. Be2 Be7 9. O-O O-O 10. f4 exf4
1956 GDR Ch – Round 7 – Rittner, Horst – 1/2-1/2 – Malich, Burkhard, Dr. – G7 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 Be6 8. Nd5 Bxd5 9. exd5 Nb8 10. c4 Nbd7
1956 Leningrad ch-URS – Round 1 – Ragozin, Viacheslav – 1-0 – Zurakhov, Vladlen Y – G90 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 b5 9. Nd5 Nxd5 10. exd5 Na7
1956 Marianske Lazne/Praha – Round 10 – Ragozin, Viacheslav – 1/2-1/2 – Szilagyi, Gyorgy Laszlo – G66 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 Be6 8. Nd5 Bxd5 9. exd5 Nb8 10. c4 Nbd7
1956 Marianske Lazne/Praha – Round 6 – Ragozin, Viacheslav – 1/2-1/2 – Stahlberg, Gideon – G40 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 Be6 9. Nc4 Be7 10. Nd5 Bxd5
1957 Mar del Plata – Round 10 – Sanguineti, Raúl Carlos – 1-0 – Rubio Aguado, Fernando – G93 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 b5 9. Nd5 Nxd5 10. exd5 Nb8
1957 Sofia zt – Round 1 – Karaklajic, Nikola – 0-1 – Barcza, Gedeon – G10 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 Be7 8. Nd5 Nxd5 9. exd5 Nb8 10. c4 a6
1957 Sombor – Round 17 – Karaklajic, Nikola – 1-0 – Janosevic, Dragoljub – G166 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 b5 9. Nd5 Nxd5 10. exd5 Na5
1958 BUL Ch – Round ? – Prahov, Valentin – 1-0 – Filchev, Rusko – G49 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 h6 8. Be2 Be7 9. O-O O-O 10. f3 a6
1961 Belgrade – Round 1 – Karaklajic, Nikola – 1-0 – Njegovan, Duzan – G21 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 Be6 9. Nc4 Bxc4 10. Bxc4 Be7
1963 Bad Liebenstein – Round 6 – Karaklajic, Nikola – 1-0 – Szilagyi, Gyorgy Laszlo – G41 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 b5 9. Nd5 Nxd5 10. exd5 Ne7
1964 ARG Ch – Round 4 – Rubinetti, Jorge – 1-0 – Pugach, Mario – G16 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 b5 9. Nd5 Nxd5 10. exd5 Nb8
1967 Clare Benedict Cup 14th – Round 3.4 – Lee, Peter N – 0-1 – Diez del Corral, Jesus – G17 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Ndb5 a6 8. Na3 d5 9. Nxd5 Nxe4 10. Bb6 Bb4+
1967 ROM Ch – Round 15 – Drimer, Dolfi – 0-1 – Buza, Adrian – G104 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Nb3 Be6 8. Qf3 Be7 9. Nd5 O-O 10. a3 Bxd5
1968 Lugano olm - Round 1 - Bhend, Edwin - 0-1 - Drimer, Dolfi - G222 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Nf3 h6 8. Bc4 Be6 9. Bb3 Be7 10. h3 a6
1968 ROM Ch – Round 10 – Vaisman, Volodia – 1/2-1/2 – Drimer, Dolfi – G57 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Nb3 Be6 8. h3 Be7 9. g4 d5 10. exd5 Nxd5
1969 Nordic Ch – Round 13 – Gliksman, Darko – 1/2-1/2 – Drimer, Dolfi – G36 1. e4 c5 2. Nc3 Nc6 3. Nf3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be3 e5 7. Ndb5 a6 8. Na3 Be6 9. Nc4 Be7 10. Nb6 Rb8
1969 URS Ch sf – Round ? – Kapengut, Albert – 0-1 – Furman, Semyon – G11 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 e5 7. Nf3 h6 8. Bc4 Be7 9. h3 Be6 10. Bb3 Rc8
Belgrade 1987 – Round 1 – Timman, Jan H – 1-0 – Marjanovic, Slavoljub – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 e5 7. Nf3 h6 8. Bc4 Be7 9. O-O Bg4 10. h3 Bh5
ch-Wereld Teams 1989 – Round 9 – Chandler, Murray G – 1-0 – Wang, Zili – G79 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Na5 10. Be2 Be6
Manila Interzonal 1990 – Round 6 – Anand, Viswanathan – 1/2-1/2 – Chandler, Murray G – G105 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Na5 10. Bd3 Be6
OHRA 1986 – Round 1 – Timman, Jan H – 1/2-1/2 – Van der Wiel, John T.H. – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 e5 7. Nb3 Be6 8. Qd2 d5 9. exd5 Nxd5 10. Nxd5 Qxd5

B56p — Open (1951)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be3 e5

Les coups candidats

7.Nb3 — 51.2% (728 parties)

Ambassadeurs : Sochorova, Petra (4x), Drimer, Dolfi (3x), Pastir, Stanislav (3x), Ostojic, Predrag (2x), Andres De Jesus, Miguel Angel (2x), Vilela De Acuna, Jose Luis (2x), Franco Ocampos, Zenon (2x), Lobron, Eric (2x)

7.Nf3 — 32.1% (457 parties)

Ambassadeurs : Wittmann, Walter (10x), Kapengut, Albert (7x), Adams, Michael (7x), Sherzer, Alex (6x), Martin Del Campo Cardenas, Roberto Abel (5x), Chandler, Murray G (5x), Novik, Maxim (4x), Mukhametov, Eldar (4x)

7.Ndb5 — 9.5% (135 parties)

Ambassadeurs : Aadhitha Karikalan (7x), Szalanczi, Emil (7x), Perenyi, Bela (4x), Madl, Ildiko (4x), Ragozin, Viacheslav (3x), Csom, Istvan (3x), Szilagyi, Gyorgy Laszlo (2x), Inkiov, Ventzislav (2x)

7.Nxc6 — 4.7% (67 parties)

Ambassadeurs : Balanel, Ion (1x), Ghitescu, Theodor (1x), Lieberman, Dr. David (1x), OBrien, Erik Michael (1x), Paoli, Enrico (1x), Unzicker, Ferdinand, Dr. (1x), Leung, Michael (1x), Tcheng, Jason (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Nb3	7.Nf3	7.Ndb5	7.Nxc6
<1800	113	53%	25%	15%	6%
1800-2200	560	62%	24%	8%	4%
2200-2600	524	41%	46%	8%	2%
2600+	4	25%	75%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Nb3	7.Nf3	7.Ndb5	7.Nxc6
1950s	18	17%	—	78%	6%
1960s	26	50%	12%	31%	8%
1970s	48	33%	19%	23%	6%
1980s	113	33%	48%	16%	1%
1990s	418	40%	53%	3%	3%
2000s	393	60%	22%	9%	6%
2010s	344	63%	21%	7%	6%
2020s	62	58%	18%	19%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Nb3	63%	58%	▼ -5.3%
7.Nf3	21%	18%	▼ -3.5%
7.Ndb5	7%	19%	▲ +12.1%
7.Nxc6	6%	5%	▼ -1.0%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 5 parties
Karpov, Anatoly — 1 partie
Tal, Mikhail — 1 partie
Hou, Yifan — 1 partie

Parties historiques

7.Nb3 — 51.2% (728 parties)

1956 — Cardoso, Radolfo Tan vs Middleton, Ian — 1/2-1/2 — Moscow RUS
1957 — Blonarovych, Lev vs Owens, Brian — 0-1 — East Orange
1957 — Delgado Ramirez, Felix David vs Byrne, Robert E — 0-1 — Cleveland, OH USA
1961 — Nasser, Sergio vs De Souza Mendes, Joao — 0-1 — Vitoria
1961 — Karpov, Anatoly vs Mukhudulin — 1/2-1/2 — Zlatoust

7.Nf3 — 32.1% (457 parties)

1968 — Bhend, Edwin vs Drimer, Dolfi — 0-1 — Lugano olm
1969 — Kapengut, Albert vs Furman, Semyon — 0-1 — Rostov on Don
1969 — Baretic, Zvonimir vs Benko, Pal — 0-1 — Vrsac SRB
1970 — Miyasaka, Yukio vs Patterson, Nicholas J — 1-0 — Siegen olm
1976 — Kapengut, Albert vs Yuferov, Sergey N — 1-0 — Soviet Union

7.Ndb5 — 9.5% (135 parties)

1956 — Ragozin, Viacheslav vs Szilagyi, Gyorgy Laszlo — 1/2-1/2 — Marianske Lazne
1956 — Ragozin, Viacheslav vs Stahlberg, Gideon — 1/2-1/2 — Marianske Lazne
1956 — Ragozin, Viacheslav vs Zurakhov, Vladlen Y — 1-0 — Leningrad ch-URS
1956 — Rittner, Horst vs Malich, Burkhard, Dr. — 1/2-1/2 — Leipzig GER
1956 — Neishtadt, Yakov vs Slepoy, Yosef — 1/2-1/2 — Leningrad RUS

7.Nxc6 — 4.7% (67 parties)

1951 — Paoli, Enrico vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Lucerne SUI
1960 — Balanel, Ion vs Ghitescu, Theodor — 0-1 — Bucharest ROU
1966 — Lieberman, Dr. David vs OBrien, Erik Michael — 0-1 — Sunnyvale
1972 — Kirov, Nino vs Spassov, Liuben — 1/2-1/2 — Sofia BUL
1972 — Triemstra, William vs Chouinard, Sylvain — 0-1 — CCCA corr

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