B21c — Sicilian: Grand Prix, 2…d6

1.e4 c5 2.f4 d6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nf3 (Développer g1 — 78 % des parties) ; Nc3 (Développer b1 — 9 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Nc6 (Développer b8 — 53 % des parties) ; ...Nf6 (Développer g8 — 18 % des parties) ; ...g6 (Préparer le fianchetto — 12 % des parties) ; ...e6 (Solidifier le centre, libérer le fou — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d5 (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. 5)
Bf8		● Bf8 Non développé (mob. 0)
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, ● e4-e5	● …d6-d5, ● …e7-e5, ● …f7-f5

Partie
1949 Venice – Round 1 – Fletzer, Gino – 0-1 – Barcza, Gedeon – G13 1. e4 d6 2. f4 c5 3. Nf3 Nc6 4. Be2 e6 5. O-O d5 6. d3 Nf6 7. e5 Nd7 8. Qe1 f5 9. Ng5 Nb6 10. c3 Be7
1951 Buenos Aires – Round 12 – Juarez Baldizon, Carlos A. – 1-0 – Alonso-Lej De Las Casas, Fernando – G73 1. e4 c5 2. f4 d6 3. Nf3 Nf6 4. Bb5+ Bd7 5. Bxd7+ Nbxd7 6. e5 Nd5 7. d4 e6 8. c4 Nc7 9. Be3 cxd4 10. Bxd4 d5
1951 Schlechter Memorial – Round ? – Kinzel, Anton – 1-0 – Mueller, Hans – G32 1. e4 d6 2. f4 c5 3. Nf3 Nc6 4. c3 Nf6 5. d3 e6 6. Be2 Be7 7. O-O O-O 8. Na3 Rb8 9. Nc2 b5 10. Ne3 b4
1952 Rio de Janeiro – Round 2 – Engels, Ludwig – 1/2-1/2 – Rabar, Braslav – G8 1. e4 d6 2. f4 c5 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. Nf3 Nc6 6. O-O Nf6 7. d3 e6 8. Nbd2 Be7 9. c3 O-O 10. Qe2 Qc7
1953 Hoogovens – Round 1 – Heidenfeld, Wolfgang – 0-1 – Bouwmeester, Hans – G13 1. e4 d6 2. f4 c5 3. Nf3 Nc6 4. Bb5 Bd7 5. O-O g6 6. d3 Bg7 7. c3 Nf6 8. Kh1 O-O 9. Be3 a6 10. Bxc6 Bxc6
1954 Open – Round 4 – Edelstein Harold – 0-1 – Bermudez Adams, William – G5 1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. Be2 g6 5. O-O Bg7 6. Nc3 Nf6 7. d3 O-O 8. Kh1 a6 9. Qe1 b5 10. Nd1 Nb4
1955 Corr – Round ? – Darragh, John A – 1-0 – Ozols, Karlis – G18 1. e4 d6 2. f4 c5 3. b3 Nf6 4. Nc3 g6 5. Bb2 Bg7 6. Nd5 Nbd7 7. Nf3 O-O 8. Bd3 b6 9. O-O Bb7 10. c4 e6
1959 Quilmes – Round 10 – Piazzini, Luis – 1/2-1/2 – Puiggros, Guillermo – G59 1. e4 d6 2. f4 c5 3. Bc4 Nc6 4. Nf3 e6 5. Nc3 Nf6 6. Qe2 Qc7 7. d3 a6 8. a4 Rb8 9. O-O Nd4 10. Nxd4 cxd4
1959 Skittles – Round ? – Gazze, Mark – 1-0 – Blackstone, John – G15 1. e4 c5 2. f4 d6 3. Nf3 e6 4. Bb5+ Bd7 5. a4 Nc6 6. O-O a6 7. Bc4 Na5 8. Be2 Nf6 9. Nc3 Be7 10. e5 Nd5
1962 Solihull Handicap – Round ?.6 – Ritson-Morry, William – 1-0 – Griffiths, Peter C – G13 1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. g3 Nf6 5. d3 g6 6. Bg2 Bg7 7. c3 O-O 8. O-O c4 9. Na3 Qb6+ 10. Kh1 cxd3
1964 CAN-op – Round 6 – Tasev, Miroslav – 0-1 – Vranesic, Zvonko – G9 1. e4 c5 2. f4 d6 3. Nf3 a6 4. Be2 Qc7 5. Nc3 Nf6 6. d3 Nc6 7. Be3 e6 8. O-O Be7 9. Qe1 b5 10. Nh4 d5
1965 Hamburg etc – Round 1 – Barendregt, Johan – 1/2-1/2 – Parma, Bruno – G32 1. e4 d6 2. f4 c5 3. Nf3 g6 4. Nc3 Bg7 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. O-O Nc6 8. d3 e6 9. Be3 Nd4 10. Bxd4 cxd4
1966 La Habana olm fin-D – Round 1 – Fung Yee Wang – 0-1 – Araiza Munoz, Jose Joaquin – G2 1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. Be2 Nf6 5. Nc3 g6 6. d4 cxd4 7. Nxd4 Bg7 8. Be3 O-O 9. Qd2 Qa5 10. Nb3 Qc7
1967 USSR – Round 1 – Vybornov, Aleksey – 0-1 – Zaitsev, Igor A – G57 1. f4 d6 2. e4 c5 3. b3 Nf6 4. Bc4 Nxe4 5. Bxf7+ Kxf7 6. Qh5+ Ke6 7. Qh3+ Kf6 8. Bb2+ Kg6 9. g4 Nf6 10. f5+ Kf7
1968 Lugano olm - Round 1 - Basman, Michael J - 0-1 - Bouwmeester, Hans - G411 1. e4 d6 2. f4 c5 3. Nf3 Nf6 4. Nc3 g6 5. b3 Bg7 6. Bb5+ Bd7 7. e5 Nh5 8. Qe2 O-O 9. Bxd7 Qxd7 10. Qe3 Nc6

B21c — Grand Prix (1949)

1.e4 c5 2.f4 d6

Les coups candidats

3.Nf3 — 78.1% (2400 parties)

Ambassadeurs : Kadonas, Kestutis (10x), Vann, Monica S (9x), Roos, Karin (8x), Wall, Bill (8x), Montoro, Gustavo E. (7x), Gaciu, Vlad-Jan (5x), Lesny, Stefan (4x), Farges, Yves (3x)

3.Nc3 — 9.2% (283 parties) →

Ambassadeurs : Vlassov, Nikolai (3x), Khan, Shams (3x), Payet, Amelie (2x), Jonas, Peter (2x), Zinn, Lothar (1x), Garcia Martinez, Silvino (1x), Lazarevic, Aleksandar (1x), Wolpert, Linus (1x)

3.Bc4 — 4.2% (128 parties)

Ambassadeurs : Horn, Pascal (3x), Poteas, Ioannis (2x), Krol, Wladyslaw (2x), Smith, MJ. (1x), Poole, PH. (1x), Cheng, Winter (1x), Lehmann, Christina (1x), Piazzini, Luis (1x)

3.Bb5+ — 3.4% (104 parties)

Ambassadeurs : Vann, Monica S (3x), Banasova, Katarina (3x), Cheng, Winter (1x), Heintze, Marion (1x), Engels, Ludwig (1x), Rabar, Braslav (1x), Wall, George (1x), Wheeler, Jerry (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3.Nf3	3.Nc3	3.Bc4	3.Bb5+
<1800	470	76%	9%	5%	3%
1800-2200	1316	80%	9%	3%	3%
2200-2600	267	81%	10%	1%	4%
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	3.Nf3	3.Nc3	3.Bc4	3.Bb5+
1950s	28	79%	7%	4%	4%
1960s	34	76%	9%	6%	3%
1970s	83	78%	11%	2%	4%
1980s	143	77%	5%	3%	6%
1990s	776	79%	10%	4%	3%
2000s	1098	78%	9%	4%	4%
2010s	787	78%	9%	4%	3%
2020s	123	80%	11%	2%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3.Nf3	78%	80%	▲ +2.7%
3.Nc3	9%	11%	▲ +2.4%
3.Bc4	4%	2%	▼ -2.0%
3.Bb5+	3%	2%	▼ -1.7%

Parties historiques

3.Nf3 — 78.1% (2400 parties)

1950 — Gordon, Morris vs Solana, Robert — 0-1 — Los Angeles, CA USA
1951 — Leinweber, Martina vs Paoli, Alessio Matteo — 0-1 — Venice ITA
1951 — Juarez, Carlos Eleodoro vs Casas Perea, Fernando — 1-0 — Buenos Aires ARG
1951 — Donk, HJ. vs Donner, Jan-Hein — 1-0 — Winterwedstrijd
1951 — Kinzel, Anton vs Mueller, Hans — 1-0 — Vienna AUT

3.Nc3 — 9.2% (283 parties)

1957 — Nielsen, Jacob vs Flammiger, H. — 1-0 — cr.
1959 — Lazarevic, Aleksandar vs Wolpert, Linus — 1-0 — Kiev UKR
1964 — Coskun, Kursat vs Camarena, Joaquin — 1-0 — Tel Aviv ISR
1965 — Medina-Garcia, Antonio vs Garcia Orus, Francisco — 1/2-1/2 — Palma de Majorca ESP
1968 — Zinn, Lothar vs Garcia Martinez, Silvino — 1-0 — Havana CUB

3.Bc4 — 4.2% (128 parties)

1959 — Piazzini, Luis vs Puiggros, Guillermo — 1/2-1/2 — Quilmes
1963 — Smith, MJ. vs Poole, PH. — 1-0 — Bath ENG
1968 — Cheng, Winter vs Lehmann, Christina — 1-0 — Zinnowitz zt women
1974 — Sikes, Haskell vs Wall, Alejandro — 1/2-1/2 — U Tapao, Thailand
1977 — Papandreou, Nikolaos vs Zahilas, Loukas N. — 0-1 — ?

3.Bb5+ — 3.4% (104 parties)

1952 — Engels, Ludwig vs Rabar, Braslav — 1/2-1/2 — Rio de Janeiro BRA
1969 — Cheng, Winter vs Heintze, Marion — 1-0 — Schwerin GER
1970 — Midjord, Joan Paetur vs Palmer, Bernard — 1-0 — Siegen olm
1973 — Wall, George vs Wheeler, Jerry — 1-0 — Music City op
1977 — Goncharoff, Nik vs Kornfeld, A. — 1/2-1/2 — ?

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