B20s — Sicilian: 2.d3 e6 3.g3

1.e4 c5 2.d3 e6 3.g3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Bg2 (Fianchetto, fou sur la grande diagonale — 75 % des parties) ; Nd2 (Développer b1 — 17 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Nc6 (Développer b8 — 64 % des parties) ; ...d5 (Occuper le centre — 22 % des parties) ; ...g6 (Préparer le fianchetto — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● c2→d3, f2→g3, h2→g3, d3→e4	● d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0)	—
Cases faibles	—	—
Centre	● e4 (1v0)	● d4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 3)
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	● d3-d4	● …c5-c4, ● …d7-d5, ● …f7-f5

Partie
1955 Hungary Ch – Round 1 – Szilagyi, Gyorgy Laszlo – 1/2-1/2 – Dely, P. – G64 1. e4 e6 2. d3 c5 3. g3 d5 4. Nc3 Nf6 5. Bg2 dxe4 6. dxe4 Qxd1+ 7. Nxd1 Nc6 8. Ne2 Bd7 9. O-O O-O-O 10. b3 Bd6
1955 URS-USA telex – Round 3 – Reshevsky, Samuel – 1/2-1/2 – Botvinnik, Mikhail – G15 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Nd2 Bg7 6. Ngf3 Nge7 7. O-O O-O 8. Re1 d6 9. c3 h6 10. Nb3 e5
1956 GDR Ch – Round 15 – Bauer, Erich – 1/2-1/2 – Bertholdt, Dieter – G20 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 Nf6 5. Nf3 d6 6. O-O Be7 7. h3 O-O 8. Nbd2 Rb8 9. Ne1 d5 10. f4 dxe4
1957 Hoogovens – Round 6 – Pilnik, Herman – 1/2-1/2 – Stahlberg, Gideon – G24 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. c3 d5 6. exd5 exd5 7. Ne2 Nge7 8. O-O Bg7 9. Nf4 O-O 10. Re1 d4
1961 Montevideo – Round 7 – Pelikán, Jiří – 1-0 – Rossetto, Hector – G37 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Nh3 Bg7 6. O-O d6 7. Nc3 h5 8. Be3 Nd4 9. Rb1 h4 10. g4 Ne7
1963 Bath ch-BCF – Round 2 – Hilton, CG. – 0-1 – Clarke, Peter H – G24 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. c3 Bg7 6. Be3 d6 7. Ne2 Nge7 8. O-O b6 9. Na3 O-O 10. Qd2 Ba6
1963 Hoogovens – Round 14 – Robatsch, Karl – 1/2-1/2 – Ivkov, Borislav – G118 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Ne2 Bg7 6. O-O Nge7 7. c3 d5 8. exd5 Nxd5 9. Nd2 O-O 10. Nb3 b6
1963 Liberation – Round 1 – Kholmov, Ratmir D – 0-1 – Matulovic, Milan – G29 1. e4 e6 2. d3 c5 3. g3 d5 4. Nd2 Bd6 5. Bg2 Ne7 6. Ne2 Nbc6 7. O-O O-O 8. f4 b6 9. exd5 exd5 10. Nc3 Be6
1965 Buenos Aires – Round 2 – Schweber, Samuel – 1/2-1/2 – Panno, Oscar – G23 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. f4 Bg7 6. Nd2 Nge7 7. Ne2 d6 8. O-O O-O 9. g4 f5 10. gxf5 exf5
1965 Rubinstein Memorial – Round 13 – Bednarski, Jacek – 1-0 – Serwinski, Benedykt – G59 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Nh3 Bg7 6. O-O Nge7 7. Nd2 O-O 8. Nc4 d5 9. exd5 Nxd5 10. Re1 b6
1966 Bucharest – Round 1 – Bednarski, Bartlomiej – 0-1 – Kortchnoi, V. – G8 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Ne2 Bg7 6. O-O Nge7 7. Nbc3 d6 8. Be3 Nd4 9. Qd2 O-O 10. Nd1 d5
1966 Bucharest – Round 8 – Bednarski, Jacek B – 0-1 – Korchnoi, Viktor – G34 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Ne2 Bg7 6. O-O Nge7 7. Nbc3 d6 8. Be3 Nd4 9. Qd2 O-O 10. Nd1 d5
1966 Sunderland ch-BCF – Round 5 – Hindle, Owen M – 1/2-1/2 – Clarke, Paul R H – G50 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. c3 d5 6. Nd2 Bg7 7. Ngf3 Nge7 8. O-O O-O 9. Re1 b5 10. exd5 Nxd5
1967 Palma de Mallorca – Round 11 – Bednarski, Jacek B – 1/2-1/2 – Diez del Corral, Jesus – G83 1. e4 e6 2. d3 c5 3. g3 b6 4. Bg2 Bb7 5. Nd2 Be7 6. Ngf3 d6 7. O-O Nf6 8. Re1 O-O 9. b3 Nc6 10. Bb2 Nd7
1968 CSR Ch – Round 1 – Augustin, Josef – 1/2-1/2 – Lechtynsky, Jiri – G7 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Ne2 Bg7 6. O-O Nge7 7. c3 O-O 8. Bg5 h6 9. Be3 b6 10. Qd2 Kh7
1968 Lugano ol (Men) qual-B – Round 1 – Evans, Larry M – 1/2-1/2 – Fuller, Maxwell L – G5 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. c3 Bg7 6. Be3 d6 7. Ne2 Nge7 8. O-O O-O 9. a4 b6 10. d4 Ba6
1968 Palma de Mallorca – Round 12 – Medina-Garcia, Antonio – 1-0 – Diez del Corral, Jesus – G110 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 Be7 5. Nc3 d6 6. f4 h5 7. h3 Nd4 8. Nf3 Bd7 9. Be3 Nxf3+ 10. Qxf3 Bc6
1968 WchT U26 – Round 1 – Atanasov, Petar – 1-0 – Zara, Dan – G46 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Ne2 Bg7 6. O-O Nge7 7. c3 d5 8. Be3 d4 9. cxd4 cxd4 10. Bd2 O-O
1969 Luhacovice – Round 14 – Blatny, Pavel – 1/2-1/2 – Kolarov, Atanas S. – G102 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. c3 Bg7 6. Nf3 Nge7 7. O-O O-O 8. Be3 b6 9. d4 d6 10. dxc5 dxc5
1969 Moskou ch-URS – Round 1 – Lutikov, Anatoly S – 0-1 – Petrosian, Tigran A. – G178 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Ne2 Bg7 6. c3 d5 7. Be3 d4 8. cxd4 cxd4 9. Bd2 Nge7 10. O-O O-O
1969 USSR – Round 1 – Yukhtman, Yakov – 1-0 – Zilberman, Nathan R – G42 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 d6 5. Nf3 Nf6 6. O-O Be7 7. Nbd2 O-O 8. Re1 Bd7 9. a4 Qc7 10. Nc4 Rfd8
FIDE WCh KO 2001 – Round 1.1 – Ehlvest, Jaan – 1/2-1/2 – Radjabov, Teimour – G52 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. f4 Bg7 6. Nf3 Nge7 7. c3 O-O 8. Be3 b6 9. O-O Ba6 10. Na3 Rc8
Lugano Open 1982 – Round 1 – Spassky, Boris V. – 1-0 – Hoffmann, Achim Gunter – G3 1. e4 c5 2. d3 e6 3. g3 Nc6 4. Bg2 g6 5. f4 Nge7 6. Nf3 Bg7 7. O-O O-O 8. c3 d6 9. Na3 b6 10. Nc2 Bb7
Moskou ch-URS 1988 – Round 1 – Gavrikov, Viktor – 1/2-1/2 – Gurevich, Mikhail – G49 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. f4 Bg7 6. Nf3 d6 7. O-O Nge7 8. c3 O-O 9. Be3 b6 10. Re1 e5

B20s — Sicilian (1955)

1.e4 c5 2.d3 e6 3.g3

Les coups candidats

3…Nc6 — 63.8% (1634 parties)

Ambassadeurs : Oratovsky, Michael (6x), Vorobiov, Evgeny E. (6x), Vareille, Francois (5x), Weiss, Augustin (4x), Hagarova, Zuzana (4x), Lechtynsky, Jiri (4x), Mroziak, Maciej (4x), Janjic, Stefan (4x)

3…d5 — 21.8% (559 parties)

Ambassadeurs : Burovic, Rijad (9x), Guerra, Victor (4x), De Jong, Tom (3x), Muhren, Willem (3x), Moser, Emily (3x), Larino Nieto, David (3x), Steinmueller, Alexander (3x), Antolak, Julia (3x)

3…g6 — 7.3% (188 parties)

Ambassadeurs : Schweber, Samuel (2x), Salcher, Felix (2x), Richards, Heather S (2x), Wille, Thomas (2x), Berglund, Martin (1x), Pytel, Krzysztof (1x), Zaitsev, Igor A (1x), Kudriashov, Anatoli (1x)

3…b6 — 3.1% (79 parties)

Ambassadeurs : Goric, Esad (2x), Bednarski, Jacek (1x), Diez del Corral, Jesus (1x), Isaksen, Brian (1x), Berg, Klaus (1x), Wagner-Michel, Annett (1x), Mayer, Stepanka (1x), Daher, Flavio Roberto (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3…Nc6	3…d5	3…g6	3…b6
<1800	131	47%	31%	6%	3%
1800-2200	1200	63%	21%	8%	3%
2200-2600	935	67%	23%	5%	3%
2600+	19	79%	5%	11%	—

Évolution par décennie (% des parties)

Décennie	N parties	3…Nc6	3…d5	3…g6	3…b6
1950s	12	58%	33%	8%	—
1960s	51	69%	6%	20%	2%
1970s	100	64%	14%	16%	5%
1980s	85	67%	28%	4%	1%
1990s	536	65%	23%	7%	2%
2000s	894	63%	23%	7%	3%
2010s	750	65%	20%	7%	4%
2020s	133	61%	26%	5%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3…Nc6	65%	61%	▼ -3.8%
3…d5	20%	26%	▲ +5.6%
3…g6	7%	5%	▼ -1.4%
3…b6	4%	2%	▼ -2.0%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 1 partie

Parties historiques

3…Nc6 — 63.8% (1634 parties)

1955 — Rapaka Samuel Paul vs Botvinnik, Mikhail — 1/2-1/2 — Moscow RUS
1956 — Bauer, Erich vs Bertholdt, Dieter — 1/2-1/2 — Leipzig GER
1956 — Bauer, Erich vs Golz, Werner — 1-0 — GDR-ch Leipzig GER
1957 — Brameyer, Hermann vs Kuettner, Uwe — 0-1 — Ruhla
1957 — Pilnik, Herman vs Stahlberg, Gideon — 1/2-1/2 — Beverwijk NED

3…d5 — 21.8% (559 parties)

1955 — Szilagyi, Gyorgy Laszlo vs Dely, Peter — 1/2-1/2 — Hungary ch
1956 — Handel, Horst vs Golz, Werner — 1/2-1/2 — Leipzig ch GDR
1957 — Robatsch, Karl vs Porreca, Giorgio — 1/2-1/2 — Bern SUI
1958 — Wade, Robert G vs Beach, Thomas John — 1-0 — Leamington
1963 — Kholmov, Ratmir D vs Matulovic, Milan — 0-1 — Belgrade SRB

3…g6 — 7.3% (188 parties)

1956 — Bauer, Erich vs Juergens, Helmut — 1/2-1/2 — Leipzig GER
1962 — Trapl, Jindrich vs Fabian, Jan — 1-0 — Jablonec
1963 — Zaitsev, Igor A vs Kudriashov, Anatoli — 1-0 — Alma Ata KAZ
1966 — Schweber, Samuel vs Miranda, Marcio Marcos do Carmo — 1-0 — Rio Hondo zt
1966 — Schweber, Samuel vs Miranda, Hernan — 1-0 — Rio Hondo

3…b6 — 3.1% (79 parties)

1967 — Bednarski, Jacek vs Diez del Corral, Jesus — 1/2-1/2 — Palma de Majorca ESP
1971 — Makropoulos, Georgios vs Tsiknopoulos, Konstantinos — 1-0 — Athens GRE
1978 — Wagner-Michel, Annett vs Mayer, Stepanka — 1/2-1/2 — Halle 12th women
1978 — Daher, Flavio Roberto vs Nogueira, Cleobis Cunha — 0-1 — Vacaria
1978 — Bouaziz, Slim vs Broomes, Maurice — 1-0 — Buenos Aires olm

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