B78s — Sicilian: Dragon, Yugoslav, Old Main Line, 11.Bb3 Rac8

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Qa5 11.Bb3 Rac8 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Avantages : majorité aile_dame (3v2), case forte d4, case forte e4, case forte b5, case forte d5, Bb3 actif, Be3 actif, paire de fous, colonne d.
Faiblesses adverses : Bg7 enfermé.
Plans :
● Bc2 — Anticiper ...Na5
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Avantages : majorité centre (2v1), case forte b4, case forte c5, case forte e5, avant-poste e5(C), Bd7 actif, paire de fous, colonne c.
Problèmes : Bg7 enfermé.
Plans :
● ...Na5 — Attaquer Bb3
● ...d5 — Rupture
● ...e6 — Rupture
● ...e5 — Rupture
● ...Rc — Tour sur colonne c

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B78s — Dragon Yugoslav Old Main Line

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Qa5 11.Bb3 Rac8

Eval: [+1.17]

Les coups candidats

12.Kb1 — 43.3% (77 parties)

Ambassadeurs : Safarian, Alek (2x), Todorovic, Zoran (2x), Runstrom, Harry (1x), Edelsvard, Olle (1x), Djurovic, Bojan (1x), Puc, Stojan (1x), Genduso, Carmelo (1x), Baldarov, Aur (1x)

12.h4 — 38.8% (69 parties)

Ambassadeurs : Longwitz, Andreas (1x), Mestrovic, Zvonimir (1x), Lee, Peter N (1x), Baldwin, Terry D (1x), Sheehan, James (1x), Cardesa Roche, Lucas (1x), Charpentier Morales, William (1x), Shahwan, Y. (1x)

12.g4 — 15.2% (27 parties)

Ambassadeurs : Henriksen Ernst (2x), Jesso Kurt (1x), Siim, Svend (1x), Tarkeshdooz, N (1x), Choobak, K. (1x), Barczay, Laszlo (1x), Ljubojevic, Ljubomir (1x), Haliamanis, Georgios (1x)

12.Nxc6 — 2.2% (4 parties)

Ambassadeurs : Becker, Nils (1x), Schillinger, Friederike (1x), Shostka, Pavel (1x), Vavdiyuk, Dmitry (1x), De Bie, Berdy (1x), Crefcoeur, Maarten (1x), Soria, Angel Jesus (1x), Pradines, Emmanuel (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12.Kb1	12.h4	12.g4	12.Nxc6
<1800	9	33%	33%	33%	—
1800-2200	72	43%	43%	11%	3%
2200-2600	21	52%	43%	5%	—

Évolution par décennie (% des parties)

Décennie	N parties	12.Kb1	12.h4	12.g4	12.Nxc6
1960s	6	33%	33%	33%	—
1970s	9	22%	56%	22%	—
1980s	7	43%	43%	14%	—
1990s	46	37%	52%	9%	2%
2000s	58	50%	28%	16%	5%
2010s	49	45%	39%	16%	—
2020s	3	67%	—	33%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12.Kb1	45%	67%	▲ +21.8%
12.h4	39%	0%	▼ -38.8%
12.g4	16%	33%	▲ +17.0%
12.Nxc6	0%	0%	+0.0%

Parties historiques

12.Kb1 — 43.3% (77 parties)

1965 — Djurovic, Bojan vs Puc, Stojan — 1-0 — Novi Sad SRB
1969 — Runstrom, Harry vs Edelsvard, Olle — 1-0 — corr SWE/K
1971 — Bjorgvinsson, Jon vs Gunnarsson, Gunnar K — 0-1 — ISL-ch Reykjavik ISL
1972 — Sax, Gyula vs Natalucci, Fabrizio — 1-0 — Groningen Ech-jr
1982 — Moncelli, Giorgio vs Schaerf, Max — 1-0 — Porto San Giorgio ITA

12.h4 — 38.8% (69 parties)

1966 — Lee, Peter N vs Baldwin, Terry D — 1-0 — Bognor Regis
1968 — Longwitz, Andreas vs Mestrovic, Zvonimir — 1/2-1/2 — Meldorf
1971 — Jansa, Vlastimil vs Denker, Arnold S — 1/2-1/2 — Wijk aan Zee NED
1972 — Kelstrup, Hans vs Modr, Bretislav — 1-0 — EU M corr
1972 — Popovych, Orest vs Savage, Akin Lanre — 1-0 — US Open

12.g4 — 15.2% (27 parties)

1961 — Jesso Kurt vs Henriksen Ernst — 0-1 — ?
1961 — Siim, Svend vs Henriksen Ernst — 1/2-1/2 — ?
1970 — Barczay, Laszlo vs Ljubojevic, Ljubomir — 1/2-1/2 — Sarajevo+ Sarajevo BIH
1972 — Tarkeshdooz, N vs Choobak, K. — 0-1 — Iran Jun (ch)
1981 — Haliamanis, Georgios vs Grivas, Efstratios — 1-0 — Athens GRE

12.Nxc6 — 2.2% (4 parties)

1999 — Becker, Nils vs Schillinger, Friederike — 1-0 — Oberhof
2003 — De Bie, Berdy vs Crefcoeur, Maarten — 1-0 — Hengelo U14 open
2004 — Shostka, Pavel vs Vavdiyuk, Dmitry — 1-0 — Kiev UKR
2006 — Soria, Angel Jesus vs Pradines, Emmanuel — 1-0 — Argentina

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● g2→f3, f3→e4	● e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1), ● e4 (2v1), ● b5 (2v1), ● d5 (3v2)	● b4 (2v0), ● c5 (2v0), ● e5 (3v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (3v2), ● e4 (2v1)	● e5 (3v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bb3	● Bb3 Actif (mob. 5)
Be3	● Be3 Actif (mob. 5)
Bd7		● Bd7 Actif (mob. 5)
Bg7		● Bg7 Enfermé (mob. 2)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn f7
Non développées	1 (h1)	—

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e4-e5, ● f3-f4	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1965 Novi Sad – Round 9 – Djurovic, Bojan – 1-0 – Puc, Stojan – G79 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Bd7 7. Bb3 g6 8. f3 Bg7 9. Be3 Qa5 10. Qd2 Rc8
1966 Churchill Memorial Open 14th – Round 2 – Lee, Peter N – 1-0 – Baldwin, Terry D – G5 1. e4 g6 2. d4 Bg7 3. Bc4 d6 4. Nf3 c5 5. Nc3 cxd4 6. Nxd4 Nc6 7. Be3 Nf6 8. f3 O-O 9. Qd2 Qa5 10. Bb3 Bd7
1968 Meldorf U26 – Round 5 – Longwitz, Andreas – 1/2-1/2 – Mestrovic, Zvonimir – G19 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 Nf6 6. Bc4 Bd7 7. Bb3 g6 8. f3 Rc8 9. Be3 Bg7 10. Qd2 O-O
1971 Hoogovens – Round 2 – Jansa, Vlastimil – 1/2-1/2 – Denker, Arnold S – G146 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 O-O 8. Bb3 d6 9. f3 Bd7 10. Qd2 Qa5

1965 Novi Sad – Round 9 – Djurovic, Bojan – 1-0 – Puc, Stojan – G79

1966 Churchill Memorial Open 14th – Round 2 – Lee, Peter N – 1-0 – Baldwin, Terry D – G5

1968 Meldorf U26 – Round 5 – Longwitz, Andreas – 1/2-1/2 – Mestrovic, Zvonimir – G19

1971 Hoogovens – Round 2 – Jansa, Vlastimil – 1/2-1/2 – Denker, Arnold S – G146