Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v0)	● b4 (2v0), ● d4 (2v1)
Cases faibles	—	—
Centre	● d5 (2v0), ● e4 (1v0)	● d4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb5	● Bb5 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● a1, ● h1)	5 (● g8, ● 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	● …d7-d5, ● …f7-f5

B31b — Sicilian: Rossolimo, 3…g6 4.Nc3

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.Nc3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. O-O (Mettre le roi en sécurité, connecter les tours — 62 % des parties) ; Bxc6 (Clouer d7, Fou actif (mobilité 5) — 18 % des parties) ; d3 (Solidifier le centre — 8 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bg7 (Fianchetto, fou sur la grande diagonale — 89 % des parties) ; ...Nd4 (Cavalier centralisé en d4 — 9 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1904 DSB-14.Kongress – Round 4 – Mieses, Jacques – 1/2-1/2 – John, Walter – G18 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. Bxc6 bxc6 6. O-O Nf6 7. d3 d6 8. e5 Nd5 9. exd6 exd6 10. Nxd5 cxd5
1939 Buenos Aires ol prel-A – Round 7 – Thomas, George Alan – 1-0 – da Silva Rocha, Adhemar – G26 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Nc3 Bg7 5. O-O Nf6 6. d3 O-O 7. Be3 b6 8. Bxc6 dxc6 9. h3 h6 10. Nh2 e5
1952 Liverpool – Round 7 – Dinsen, Carl Krarup – 0-1 – Mardle, Denis – G13 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. O-O e5 6. Bxc6 bxc6 7. Re1 Ne7 8. d3 O-O 9. Be3 d6 10. Qd2 f5
1961 Moscow Ch – Round ? – Shatskes, Boris A – 0-1 – Estrin, Yakov – G78 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O Nd4 6. Nxd4 cxd4 7. Ne2 a6 8. Ba4 e6 9. d3 Ne7 10. c4 O-O
5. Norway Blitz 2017 – Round 3.1 – Carlsen, Magnus – 1-0 – Giri, Anish – G11 1. Nc3 c5 2. Nf3 Nc6 3. e4 g6 4. Bb5 Bg7 5. O-O d6 6. Re1 Bd7 7. a4 Rc8 8. d3 Nf6 9. Nd5 O-O 10. Bg5 a6
Amber Blindfold 2004 – Round 1 – Morozevich, Alexander – 1-0 – Ivanchuk, Vasyl – G3 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O e5 6. d3 Nge7 7. Bc4 O-O 8. Ne1 a6 9. a3 d6 10. Ba2 b5
FIDE GP 2002 – Round 1.1 – Al-Mudahka, Mohd – 0-1 – Leko, Peter – G6 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. O-O e5 6. Bc4 Nge7 7. Ng5 O-O 8. Qf3 d5 9. exd5 Nd4 10. Qd1 h6
Fontys, Tilburg NED 1998 – Round 6 – Svidler, Peter – 1-0 – Van Wely, Loek – G6 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O d6 6. e5 dxe5 7. Bxc6+ bxc6 8. Re1 Qc7 9. d3 Nf6 10. Nxe5 Nd5
SportAccord Blitz 2014 – Round 25.7 – Nepomniachtchi, Ian – 1-0 – Grischuk, Alexander – G198 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. Bxc6 bxc6 6. O-O e5 7. d3 Ne7 8. Be3 d6 9. Qd2 h6 10. a3 a5
SportAccord Blitz Men 2013 – Round 16.6 – Karjakin, Sergey – 1-0 – Grischuk, Alexander – G123 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Nd4 5. Ba4 Qa5 6. Rb1 Nf6 7. e5 Ne4 8. Nxe4 Qxa4 9. b3 Nxf3+ 10. gxf3 Qc6
SportAccord Blitz Men 2013 – Round 7.8 – Karjakin, Sergey – 0-1 – Radjabov, Teimour – G53 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O Nd4 6. Ba4 Qa5 7. Rb1 a6 8. Nxd4 cxd4 9. b4 Qd8 10. Ne2 b5
Supreme Masters 2013 – Round 1.5 – Karjakin, Sergey – 1-0 – Radjabov, Teimour – G5 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O e5 6. d3 Nge7 7. Bc4 h6 8. a3 O-O 9. b4 d6 10. bxc5 dxc5
Wch FIDE KO 1997 – Round 7.3 – Adams, Michael – 1/2-1/2 – Anand, Viswanathan – G5 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. O-O d6 6. d3 Bd7 7. a4 Nf6 8. h3 O-O 9. Be3 e5 10. Nd2 Be6
World Blitz 2015 – Round 19.8 – Andreikin, Dmitry – 1/2-1/2 – Maroroa Jones, Gawain C B – G1222 1. Nc3 c5 2. Nf3 Nc6 3. e4 g6 4. Bb5 Bg7 5. O-O Nd4 6. Nxd4 cxd4 7. Ne2 e6 8. c3 dxc3 9. dxc3 Ne7 10. Qd6 O-O
World Blitz 2019 – Round 18.35 – Bartel, Mateusz – 1/2-1/2 – Zvjaginsev, Vadim – G1216 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O e5 6. Nd5 Nge7 7. d3 Nxd5 8. exd5 a6 9. Ba4 Ne7 10. Re1 O-O
World Blitz 2021 – Round 8.1 – Carlsen, Magnus – 1-0 – Gelfand, Boris – G446 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. d3 d6 6. e5 dxe5 7. Bxc6+ bxc6 8. O-O c4 9. Re1 Qc7 10. h3 Be6
World Blitz 2023 – Round 10.53 – Demchenko, Aleksandr – 1/2-1/2 – Suleymenov, Alisher – G600 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O e5 6. a3 Nge7 7. b4 d6 8. d3 O-O 9. Bg5 h6 10. Bxe7 Nxe7
World Rapid 2019 – Round 1.31 – Safarli, Elmir – 1-0 – Shcherbakov, Roman – G25 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Nf3 Bg7 5. O-O d6 6. e5 dxe5 7. Bxc6+ bxc6 8. Re1 Qc7 9. d3 Bf5 10. Qe2 f6
World Rapid 2019 – Round 13.21 – Perunovic, Milos – 0-1 – Mamedov, Rauf – G829 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O e5 6. a3 Nge7 7. b4 d6 8. bxc5 dxc5 9. Bc4 O-O 10. d3 b6
Yerevan ol (Men) 1996 – Round 8 – Kaidanov, Gregory – 1-0 – Alterman, Boris – G118 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O e5 6. Bxc6 bxc6 7. d3 Ne7 8. a3 a5 9. Be3 d6 10. Nd2 O-O

B31b — Rossolimo (1904)

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.Nc3

Les coups candidats

4…Bg7 — 89.0% (2125 parties)

Ambassadeurs : Gdanski, Jacek (10x), Mary, Patrick (9x), Cornette, Matthieu (9x), Nieminen, Kari (8x), Bhowmik Roy Chowdhury, Sankha (8x), Al-Mudahka, Mohd (6x), Abaho Hilda (6x), Gipslis, Aivars (4x)

4…Nd4 — 9.1% (218 parties)

Ambassadeurs : Gdanski, Jacek (10x), Nieminen, Kari (2x), Keitlinghaus, Ludger (2x), Fiedler, Bedrich (2x), Van Wely, Loek (2x), Traistaru, Teodora (2x), Hirsh, G. (1x), Martinowsky, Dr Eugene (1x)

4…a6 — 1.0% (23 parties)

Ambassadeurs : Quesada Fernandez, Gonzalo (1x), Bernaldo de Quiros Maria Raquel (1x), Cid, Marino Alejandro (1x), Quiroga, Facundo (1x), Fantoni, Franco (1x), Jonsson, Gudbrandur (1x), Hutois, Nicolas (1x), Drean, Philippe (1x)

4…Nf6 — 0.3% (8 parties)

Ambassadeurs : Breitenstein, Erich (1x), Fritsche, Frank (1x), Makka, Ioulia (1x), Tjolsen, Katrine (1x), Van Nies, Pauline (1x), Fages, Jorge Juan (1x), Dalar, Ali Riza (1x), Hiçdönmez, Hakan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Bg7	4…Nd4	4…a6	4…Nf6
<1800	202	92%	6%	1%	0%
1800-2200	945	89%	9%	1%	0%
2200-2600	856	88%	12%	0%	0%
2600+	47	91%	9%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	4…Bg7	4…Nd4	4…a6	4…Nf6
1950s	2	100%	—	—	—
1960s	3	67%	33%	—	—
1970s	6	100%	—	—	—
1980s	26	96%	4%	—	—
1990s	252	89%	9%	1%	—
2000s	751	90%	9%	1%	0%
2010s	953	90%	8%	1%	0%
2020s	395	85%	14%	1%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Bg7	90%	85%	▼ -5.5%
4…Nd4	8%	14%	▲ +5.7%
4…a6	1%	1%	+0.1%
4…Nf6	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 3 parties
Anand, Viswanathan — 1 partie
Kasparov, Garry — 1 partie

Parties historiques

4…Bg7 — 89.0% (2125 parties)

1950 — Limbourg, Remi vs Boey, Josef — 1/2-1/2 — Antwerp BEL
1952 — Dinsen, Carl Krarup vs Mardle, Denis — 0-1 — Liverpool
1961 — Shatskes, Boris A vs Estrin, Yakov — 0-1 — Moscow RUS
1967 — Nikolic, Stanimir vs Waltemathe, Alfred P — 0-1 — Beverwijk NED
1970 — Paoli, Alessio Matteo vs Dely, Isaline — 0-1 — Bari it Bari ITA

4…Nd4 — 9.1% (218 parties)

1966 — Hirsh, G. vs Martinowsky, Dr Eugene — 0-1 — ?
1987 — Seul, Georg vs Dietze, Frank — 1-0 — Duitsland tt
1990 — Pradelle, J. vs Birens, Eric-Andre — 0-1 — Toulouse FRA
1990 — Heitsch, Bernhard, Dr. vs Koehler, Ronald — 1/2-1/2 — Hessen qual
1992 — Grabher, Heinz vs Fiedler, Bedrich — 0-1 — Czechoslovakia

4…a6 — 1.0% (23 parties)

1991 — Cid, Marino Alejandro vs Quiroga, Facundo — 1-0 — Mar del Plata open
1996 — Quesada Fernandez, Gonzalo vs Bernaldo de Quiros Maria Raquel — 0-1 — ?
1999 — Fantoni, Franco vs Jonsson, Gudbrandur — 1-0 — ?
2001 — Anisca, Bogdan vs Denker, Stephan — 0-1 — Neumuenster
2002 — Hutois, Nicolas vs Drean, Philippe — 0-1 — Fouesnant FRA

4…Nf6 — 0.3% (8 parties)

2004 — Breitenstein, Erich vs Fritsche, Frank — 0-1 — ?
2006 — Van Nies, Pauline vs Fages, Jorge Juan — 0-1 — LSS
2008 — Makka, Ioulia vs Tjolsen, Katrine — 1-0 — Gjovik NOR
2010 — Dalar, Ali Riza vs Hiçdönmez, Hakan — 0-1 — ICCF
2011 — Sánchez Carol, Jesús vs Monreal Godina, José Daniel — 1-0 — ICCF

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