B21b — Sicilian: Grand Prix, 2…g6

1.e4 c5 2.f4 g6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Nf3 (Développer g1 — 79 % des parties) ; Nc3 (Développer b1 — 8 % des parties) ; d4 (Occuper le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Bg7 (Fianchetto, fou sur la grande diagonale — 88 % des parties) ; ...Nc6 (Développer b8 — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d5 (1v0), ● e5 (1v0)	● d4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1)	6 (● b8, ● 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, ● f4-f5	● …d7-d5, ● …e7-e5, ● …f7-f5

Partie
1936 Olympiad (unofficial) – Round 9 – Voinov, Nikolai – 0-1 – Nielsen, Julius – G75 1. f4 g6 2. e4 c5 3. d4 Bg7 4. c3 Qb6 5. e5 cxd4 6. cxd4 d5 7. Nc3 e6 8. Bd2 Bd7 9. Qc2 Nc6 10. Na4 Nxd4
1951 San Rafael – Round ? – Letelier Martner, Rene – 1-0 – Mangini, Jose Henrique de Mello – G31 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. Nc3 Nc6 5. d3 e6 6. g3 d5 7. Bg2 Nge7 8. Bd2 O-O 9. O-O Qb6 10. Rb1 c4+
1961 Stockholm 6061 – Round 5 – Nielsen, Axel – 1-0 – Nilsson, Zandor – G4 1. f4 g6 2. e4 c5 3. Nf3 Bg7 4. g3 Nc6 5. Bg2 e6 6. O-O d5 7. e5 Nge7 8. d3 Nf5 9. Qe2 b6 10. Qf2 h5
1964 WchT U26 11. qual-F – Round 1.2 – Willems Leo – 0-1 – Pavlov, Mircea-Sergiu-Aurelian – G4 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. Bc4 Nc6 5. O-O e6 6. c3 d5 7. exd5 exd5 8. Re1+ Nge7 9. Bf1 O-O 10. d3 b5
1965 Aalborg – Round 1 – From, Sigfred – 1-0 – Norby, Peter H. – G33 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. d3 Nc6 5. Nc3 d6 6. Be2 Nf6 7. O-O O-O 8. Bd2 a6 9. Qe1 e6 10. Qh4 Nd7
1965 SWE Ch – Round 7 – Ekenberg, Bengt – 1-0 – Fridh, Anton – G24 1. f4 g6 2. e4 c5 3. Nf3 Bg7 4. d3 Nc6 5. g3 d6 6. Bg2 Bg4 7. c3 Nf6 8. h3 Bd7 9. O-O Qc7 10. Na3 O-O
1966 Bucharest – Round 4 – Ciocaltea, Victor – 1-0 – Pavlov, Mircea-Sergiu-Aurelian – G19 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. d3 Nc6 5. g3 e6 6. Bg2 Nge7 7. O-O O-O 8. a4 d6 9. c3 b6 10. Be3 Bb7
1966 Zinnowitz – Round 7 – Zinn, Lothar – 0-1 – Haag, Ervin – G12 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. d4 cxd4 5. Nxd4 Nc6 6. Nb3 d6 7. Nc3 Nf6 8. Be2 O-O 9. Be3 a5 10. a4 Nb4
1968 Capablanca Memorial – Round 1 – Zinn, Lothar – 0-1 – Rodriguez Gonzales, Angie Kelly – G37 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. Nc3 d6 5. Bb5+ Nc6 6. O-O Nf6 7. d3 O-O 8. Bxc6 bxc6 9. Qe1 Ne8 10. f5 gxf5
1968 Lasker Memorial – Round ? – Zinn, Lothar – 1/2-1/2 – Schoeneberg, Manfred – G35 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. c4 Nc6 5. Nc3 d6 6. Rb1 e6 7. a3 Nge7 8. d3 O-O 9. Be2 Nd4 10. O-O Nec6
1968 Lasker Memorial – Round 1 – Zinn, Lothar – 1/2-1/2 – Malich, Burkhard, Dr. – G7 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. Nc3 d6 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. O-O Nc6 8. d3 e6 9. Be3 Nge7 10. d4 cxd4
1969 YUG Ch 24th – Round 21 – Nicevski, Risto – 1/2-1/2 – ? – G80 1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. Be2 Nc6 5. O-O d6 6. d3 e6 7. c3 Nge7 8. a4 O-O 9. Na3 a6 10. Be3 f5

B21b — Grand Prix (1936)

1.e4 c5 2.f4 g6

Les coups candidats

3.Nf3 — 79.2% (1706 parties)

Ambassadeurs : Krol, Wladyslaw (24x), Hebden, Mark L (18x), Sommerfeld, Gilbert (12x), Langner, Ladislav (11x), Bhend, Edwin (10x), Heilala, Tapio (9x), Campora, Daniel H. (9x), Bisguier, Arthur B (8x)

3.Nc3 — 7.6% (163 parties)

Ambassadeurs : Day, Lawrence A. (6x), Martín Hernández, Vicente (3x), Blackstone, John (2x), Novy, Vaclav (2x), Holmberg, Per-Arne (2x), Ribeiro, Nuno M G A (2x), Aannevik, Bjarne (2x), Ketelaars, Arie (2x)

3.d4 — 6.3% (135 parties)

Ambassadeurs : Westerinen, Heikki M.J. (7x), Hodgson, Julian M (4x), Hebden, Mark L (4x), Sikora-Lerch, Jan (4x), Zeidler, Sven P. (3x), Watson, William N (2x), Mokry, Karel (2x), Sulaiman, Mohd Asrul (2x)

3.Bc4 — 2.0% (44 parties)

Ambassadeurs : David Avril R (1x), Ginsburg, Mark (1x), Caldieri, Pasquale (1x), Gagliardi, Pietro (1x), Sarkar, Prosanto (1x), Danilov, Alex (1x), Hanus, Jakub (1x), Ruehrig, Volkhard (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3.Nf3	3.Nc3	3.d4	3.Bc4
<1800	173	75%	12%	5%	6%
1800-2200	965	81%	6%	6%	2%
2200-2600	546	80%	6%	9%	1%
2600+	3	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	3.Nf3	3.Nc3	3.d4	3.Bc4
1950s	4	100%	—	—	—
1960s	30	83%	7%	3%	—
1970s	76	84%	5%	1%	1%
1980s	241	73%	6%	12%	1%
1990s	425	77%	7%	8%	2%
2000s	761	80%	9%	5%	2%
2010s	525	82%	7%	5%	3%
2020s	91	70%	11%	8%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3.Nf3	82%	70%	▼ -12.0%
3.Nc3	7%	11%	▲ +3.6%
3.d4	5%	8%	▲ +3.1%
3.Bc4	3%	4%	▲ +1.5%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 2 parties

Parties historiques

3.Nf3 — 79.2% (1706 parties)

1951 — Letelier Martner, Rene vs Mangini, Jose Henrique de Mello — 1-0 — San Rafael
1953 — Karpilowsky vs Wyman, Callum — 1-0 — Hollywood, CA
1958 — Neibults vs Kampenuss, Peteris — 1-0 — Riga LAT
1959 — Szobi, Tibor vs Fabian, Ireneusz — 1-0 — Zalaegerszeg
1961 — Nielsen, Axel vs Nilsson, Zandor — 1-0 — Stockholm SWE

3.Nc3 — 7.6% (163 parties)

1966 — Menas, Borel vs Blackstone, John — 1-0 — No. CA
1967 — Rivise, Irving vs Blackstone, John — 0-1 — Fresno, CA
1974 — Scharf, Manfred vs Garcia, Luis E. — 0-1 — Nice FRA
1975 — Brodie, Hugh vs Williams, Douglas — 1-0 — Calgary Can.Open
1976 — Bisguier, Arthur B vs De Firmian, Nick — 0-1 — Toronto CAN

3.d4 — 6.3% (135 parties)

1961 — Schroeder, Raymond vs Kauder, Hartmut — 0-1 — Minden
1972 — Davis, Gabe vs Anderson, Gabriel — 0-1 — ?
1980 — Sikora-Lerch, Jan vs Vokac, Marek — 1/2-1/2 — Trnava SVK
1980 — Kindermann, Stefan vs Stoica, Valentin — 0-1 — Val Thorens FRA
1981 — Westerinen, Heikki M.J. vs Arnason, Jon L — 1-0 — Brighton ENG

3.Bc4 — 2.0% (44 parties)

1978 — Hanus, Jakub vs Ruehrig, Volkhard — 0-1 — ?
1980 — Caldieri, Pasquale vs Gagliardi, Pietro — 0-1 — Scauri
1981 — David Avril R vs Ginsburg, Mark — 1-0 — London Lloyds Bank
1984 — Sarkar, Prosanto vs Danilov, Alex — 0-1 — Ottawa CAN
1990 — Saulmon, Scott vs Asbury, Victor — 1-0 — Lansing,MI Feb mini