Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, c2→b3	● d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● c4 (2v0)	● b4 (2v0), ● d4 (2v1)
Cases faibles	—	—
Centre	—	● d4 (2v1), ● d5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bb5	● Bb5 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	4 (● c8, ● f8, ● a8, ● h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Au centre
Droits de roque	—	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● d2-d4	● …c5-c4, ● …d7-d5, ● …f7-f5

B30s — Sicilian: Rossolimo, 3…e6 4.O-O Nge7 5.b3

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.b3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Bxc6 (Clouer d7, Fou actif (mobilité 5) — 58 % des parties) ; Bb2 (Fianchetto, fou sur la grande diagonale — 18 % des parties) ; Nxd4 (Cavalier centralisé en d4 — 15 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...a6 (Préparer expansion aile dame — 59 % des parties) ; ...Nd4 (Cavalier centralisé en d4 — 16 % des parties) ; ...Ng6 (15 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1957 URS Ch, semi final – Round 7 – Yukhtman, Yakov – 0-1 – Simagin, Vladimir – G81 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 d6 6. Bb2 e5 7. c3 a6 8. Be2 Ng6 9. d4 Be7 10. dxc5 dxc5
1959 Zalaegerszeg – Round 1 – Portisch, Ferenc – 1/2-1/2 – Domotor, Jozsef – G4 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 a6 6. Bxc6 bxc6 7. d4 cxd4 8. Qxd4 Ng6 9. Bb2 d6 10. Nbd2 e5
1963 Rubinstein Memorial – Round 7 – Barendregt, Johan – 0-1 – Plater, Kazimierz – G47 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 a6 6. Bxc6 Nxc6 7. Bb2 d5 8. exd5 Qxd5 9. c4 Qh5 10. Nc3 Bd7
1969 Raach zt – Round 14 – Andersson, Ulf 1949 – 1/2-1/2 – Barczay, Laszlo – G121 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 d6 6. d4 cxd4 7. Nxd4 a6 8. Bxc6+ bxc6 9. Bb2 e5 10. Ne2 Ng6
22. ECU Club Cup 2006 – Round 2 – Deglmann, Ludwig – 0-1 – Moiseenko, Alexander – G24 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 Ng6 6. Bb2 f6 7. Re1 Be7 8. c3 a6 9. Bf1 O-O 10. d4 Qc7
7. Mikhail Tal Memorial 2012 – Round 9 – Nakamura, Hikaru – 1/2-1/2 – Radjabov, Teimour – G42 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. b3 Nge7 5. O-O a6 6. Bxc6 Nxc6 7. Bb2 b6 8. Qe2 Bb7 9. Rd1 Qc7 10. c3 Ne5
Interpolis 1993 – Round 1 – Smirin, Ilia – 0-1 – Nijboer, Friso – G39 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 Ng6 6. Bb2 Qc7 7. Re1 f6 8. c3 a6 9. Bf1 Be7 10. d4 O-O
Olympiad 2002 – Round 4 – Bruzon Batista, Lazaro – 0-1 – Krasenkow, Michal – G119 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 Ng6 6. Bb2 f6 7. Re1 Be7 8. c3 a6 9. Bf1 d5 10. exd5 exd5
RUS vs. ROW 2002 – Round 8 – Akopian, Vladimir – 1-0 – Kasparov, Garry – G62 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. b3 a6 6. Bxc6 Nxc6 7. Bb2 b5 8. c4 bxc4 9. bxc4 Rb8 10. Bc3 d6

B30s — Rossolimo (1957)

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.b3

Les coups candidats

5…a6 — 59.4% (656 parties)

Ambassadeurs : Jansa, Vlastimil (10x), Filipenko, Alexander V (8x), Sveshnikov, Evgeny (8x), Ansell, Simon T (7x), Miljanic, Boro (7x), Shariyazdanov, Andrey (6x), Yandemirov, Valeri (6x), Chernyshov, Konstantin (5x)

5…Nd4 — 16.3% (180 parties)

Ambassadeurs : Jansa, Vlastimil (5x), Barbu, George-Viorel (5x), Yandemirov, Valeri (5x), Sveshnikov, Evgeny (5x), Podlesnik, Bogdan (4x), Plaskett, H James (3x), Adorjan, Andras (3x), Kurajica, Bojan (3x)

5…Ng6 — 15.2% (168 parties)

Ambassadeurs : Komarov, Dimitri (4x), Nun, Jiri (4x), Smirin, Ilia (3x), Seifert, Henryk (3x), Perez Garcia, Rodney Oscar (3x), Moiseenko, Alexander (3x), Jansa, Vlastimil (2x), Jusic, Zdenko (2x)

5…d6 — 3.6% (40 parties)

Ambassadeurs : Franco Ocampos, Zenon (3x), Jansa, Vlastimil (2x), Andersson, Ulf (1x), Barczay, Laszlo (1x), Yukhtman, Yakov (1x), Simagin, Vladimir (1x), Zaitsev, Igor A (1x), Kupreichik, Viktor D (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…a6	5…Nd4	5…Ng6	5…d6
<1800	36	75%	3%	11%	6%
1800-2200	253	64%	13%	12%	4%
2200-2600	707	56%	18%	17%	4%
2600+	26	54%	27%	15%	—

Évolution par décennie (% des parties)

Décennie	N parties	5…a6	5…Nd4	5…Ng6	5…d6
1950s	2	50%	—	—	50%
1960s	3	67%	—	—	33%
1970s	27	41%	41%	11%	4%
1980s	72	42%	32%	11%	6%
1990s	346	53%	23%	15%	4%
2000s	370	61%	13%	20%	1%
2010s	216	71%	6%	11%	6%
2020s	69	70%	12%	7%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…a6	71%	70%	▼ -1.7%
5…Nd4	6%	12%	▲ +5.6%
5…Ng6	11%	7%	▼ -3.9%
5…d6	6%	4%	▼ -1.2%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 2 parties
Botvinnik, Mikhail — 1 partie
Kasparov, Garry — 1 partie

Parties historiques

5…a6 — 59.4% (656 parties)

1959 — Portisch, Ferenc vs Domotor, Jozsef — 1/2-1/2 — Zalaegerszeg
1963 — Barendregt, Johan vs Partyka, Kazimierz — 0-1 — Polanica Zdroj POL
1964 — Jansson, Borje vs Goransson, Michael — 1/2-1/2 — SM i Goteborg
1970 — Huebner, Robert vs Masic, Ljubomir — 1-0 — ch YUG Sombor YUG
1972 — Van der Mije Nicolau, Alexandra vs Jovanovic, Goran — 1-0 — Pernik

5…Nd4 — 16.3% (180 parties)

1972 — Rogoff, Kenneth vs Adorjan, Andras — 1-0 — Graz AUT
1974 — Sax, Gyula vs Adorjan, Andras — 1/2-1/2 — HUN
1974 — Chow, Robert vs Nickoloff, Bryon — 1/2-1/2 — Vancouver
1974 — Preissmann, Emmanuel vs Giffard, Nicolas — 0-1 — Chambery
1974 — Botterill, George S. vs Speelman, Jon S — 1-0 — ?

5…Ng6 — 15.2% (168 parties)

1978 — Skotorenko, V. vs Severinov, Vladimir — 1-0 — ?
1978 — Bellon Lopez, Juan Manuel vs Visier Segovia, Fernando — 1/2-1/2 — Montilla Moriles
1979 — Zaitsev, Igor A vs Sveshnikov, Evgeny — 1/2-1/2 — Sochi RUS
1987 — Seifert, Henryk vs Ksieski, Zbigniew — 1/2-1/2 — Jachranka
1987 — Seifert, Henryk vs Adamski, Jan — 1/2-1/2 — Jachranka

5…d6 — 3.6% (40 parties)

1957 — Yukhtman, Yakov vs Simagin, Vladimir — 0-1 — Sverdlovsk
1969 — Andersson, Ulf vs Barczay, Laszlo — 1/2-1/2 — Raach
1978 — Dolmatov, Sergey vs Kapengut, Albert — 1/2-1/2 — Daugavpils LAT
1980 — Zaitsev, Igor A vs Kupreichik, Viktor D — 1-0 — Rostov on Don
1983 — Sideifzade, Fikret vs Giorgadze, Tamaz — 1/2-1/2 — Nikolaev UKR