Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● a6→b5, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (3v2)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bb3	● Bb3 Actif (mob. 4)
Be7		● Be7 Ok (mob. 1)
Bc8		● Bc8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	4 (● b8, ● c8, ● 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	● e4-e5, ● f4-f5	● …d6-d5, ● …e6-e5

B87d — Sicilian: Sozin-Najdorf, 7.Bb3 b5 8.O-O Be7 9.f4

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 b5 8.O-O Be7 9.f4 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. e5 (Occuper le centre — 44 % des parties) ; Be3 (Développer c1 — 18 % des parties) ; f5 (Attaque à l'aile roi — 16 % des parties) ; Na4 (7 % des parties) ; a3 (Préparer expansion aile dame — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...O-O (Mettre le roi en sécurité, connecter les tours — 47 % des parties) ; ...Bb7 (Développer c8 — 38 % des parties) ; ...b4 (Expansion aile dame — 7 % des parties) ; ...Qc7 (Prépare O-O-O — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1959 Candidats Tournament – Round 21 – Fischer, Raphael – 0-1 – Smyslov, Vladimir – G79 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Be7 7. O-O a6 8. Bb3 b5 9. f4 O-O 10. f5 b4
1961 Vrnjacka Banja ct women – Round 7 – Gresser, Gisela Kahn – 1/2-1/2 – Nedeljkovic, Verica – G35 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. Qf3 Bb7
1962 Lasker Memorial Berlin-Ost – Round 12 – Fichtl, Jiri – 1/2-1/2 – Stein, Leonid – G54 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. f5 b4
1962 Sofia – Round 11 – Padevsky, Nikola – 1/2-1/2 – Bertok, Mario Jr. – G65 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. a3 Bb7
1963 Dravograd – Round 7 – Rubinic – 1/2-1/2 – Nicevski, Risto – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. f4 Be7 9. O-O O-O 10. f5 e5
1963 YMCA – Round 7 – Reinhardt, Enrique – 0-1 – Bielicki, Carlos – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. a3 Bb7
1965 ISR Ch – Round 15 – Persitz, Raaphi – 1-0 – Gat, Israel – G57 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O b5 8. Bb3 Be7 9. f4 O-O 10. e5 Ne8
1965 Reggio Emilia 6566 08th – Round 10 – Paoli, Enrico – 0-1 – Tatai, Stefano – G17 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. a3 Nbd7
1967 FRG Ch Kiel GER – Round 13 – Suess, Alois – 0-1 – Eising, Johannes – G48 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 a6 7. Bb3 b5 8. f4 Be7 9. O-O O-O 10. a3 Bb7
1967 Sarajevo – Round 9 – Pietzsch, Wolfgang – 1/2-1/2 – Tringov, Georgi P – G48 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 Bb7 10. f5 e5
1968 WchT U26 – Round 1 – Van den Berg, Carel B – 1-0 – Dahl Schutt, Frederik – G21 1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Bc4 e6 7. Bb3 Be7 8. O-O b5 9. f4 Bb7 10. e5 dxe5
1969 FRG Ch Koenigsfeld GER – Round 1 – Klundt, Klaus – 1/2-1/2 – Eising, Johannes – G1 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. f5 b4
1969 FRG Ch Koenigsfeld GER – Round 14 – Rautenberg, Wilhelm – 0-1 – Kestler, Hans-Guenther – G38 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 a6 7. O-O Be7 8. Bb3 b5 9. f4 O-O 10. e5 dxe5
1969 Moskou ch-URS – Round 1 – Platonov, Igor V – 1-0 – Tal, Mikhail – G100 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O Be7 8. Bb3 b5 9. f4 Bb7 10. f5 e5
1969 URS-ch37 – Round ? – Platonov, Igor V – 1-0 – Tal, Mikhail – G13 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O Be7 8. Bb3 b5 9. f4 Bb7 10. f5 e5
1970 Palma de Mallorca Interzonal – Round 11 – Ujtumen, Tudev – 0-1 – Mecking, Henrique – G171 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. a3 Bb7
1971 Hoogovens – Round 1 – Andersson, Ulf – 1/2-1/2 – Ree, Hans – G140 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 a6 7. Bb3 b5 8. O-O Be7 9. f4 Bb7 10. f5 e5
1971 Hoogovens – Round 15 – Adorjan, Andras – 0-1 – Brinck-Claussen, Bjorn – G121 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. O-O b5 9. f4 O-O 10. e5 Ne8
1971 Moscow – Round 1 – Bronstein, David Ionovich – 0-1 – Korchnoi, Viktor – G124 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. Be3 b4
Alekhine Memorial 1971 – Round 12 – Bronstein, David Ionovich – 1/2-1/2 – Tal, Mikhail – G37 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. e5 dxe5
Moscow Interzonal 1982 – Round 4 – Velimirovic, Dragoljub – 1/2-1/2 – Andersson, Ulf 1949 – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 b5 8. O-O Be7 9. f4 Bb7 10. Be3 b4
OHRA 1984 – Round 8 – Sax, Gyula – 1/2-1/2 – Portisch, Lajos – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O Be7 8. Bb3 b5 9. f4 O-O 10. e5 dxe5
Petropolis Interzonal 1973 – Round 8 – Gheorghiu, Florin – 0-1 – Polugaevsky, Lev – G31 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. e5 dxe5

B87d — Sozin-Najdorf (1959)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 a6 7.Bb3 b5 8.O-O Be7 9.f4

Les coups candidats

9…O-O — 46.8% (679 parties)

Ambassadeurs : Bednarski, Jacek (7x), Starace, Umberto (7x), Van Riemsdijk, Herman C. (6x), Ostojic, Predrag (5x), Quinteros, Miguel A. (5x), Ribli, Zoltan (5x), Adorjan, Andras (4x), Skrobek, Ryszard (4x)

9…Bb7 — 38.1% (552 parties)

Ambassadeurs : Borkowski, Franciszek (6x), Marjanovic, Slavoljub (6x), Baljon, Christofoor (4x), Arnason, Jon L (4x), De Firmian, Nick (4x), Platonov, Igor V (3x), Herbrechtsmeier, Christof (3x), Schussler, Harry (3x)

9…b4 — 7.3% (106 parties)

Ambassadeurs : Van Riemsdijk, Herman C. (2x), Bin Naser Ziyad Hasan (2x), Westerinen, Heikki M.J. (1x), Kivipelto, Kaj (1x), Petersen, Finn (1x), Holm, Sejer (1x), Littlewood, John E (1x), Gligoric, Sofija (1x)

9…Qc7 — 6.4% (93 parties)

Ambassadeurs : Krivec, Jana (2x), Margishvili, Giorgi (2x), Khizanashvili, Vakhtang (2x), Bender, Ivan (2x), Hernandez Guerrero, Yadira (1x), Hazim Gonzalez, Elizabeth (1x), Fabbri, Mario (1x), Gatto, Claudio (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…O-O	9…Bb7	9…b4	9…Qc7
<1800	52	48%	33%	10%	8%
1800-2200	481	45%	32%	11%	10%
2200-2600	556	48%	42%	5%	4%
2600+	3	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…O-O	9…Bb7	9…b4	9…Qc7
1950s	2	100%	—	—	—
1960s	30	60%	30%	10%	—
1970s	228	68%	28%	3%	2%
1980s	270	42%	53%	1%	3%
1990s	304	41%	41%	6%	10%
2000s	355	40%	38%	10%	10%
2010s	203	43%	32%	16%	6%
2020s	58	64%	19%	16%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…O-O	43%	64%	▲ +20.4%
9…Bb7	32%	19%	▼ -12.6%
9…b4	16%	16%	-0.2%
9…Qc7	6%	2%	▼ -4.2%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 3 parties
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

9…O-O — 46.8% (679 parties)

1959 — Fischer, Robert J vs Smyslov, Vasily — 0-1 — Bled/Zagreb/Belgrade
1959 — Kotkov, Yuri M vs Polugaevsky, Lev — 0-1 — Voronezh RUS
1960 — Vasiukov, Evgeni vs Sergievsky, Vladimir D — 1-0 — Cheboksary
1961 — Gresser, Gisela Kahn vs Nedeljkovic, Verica — 1/2-1/2 — Vrnjacka Banja SRB
1962 — Ayme, Brandon vs Ostojic, Predrag — 0-1 — Marianske Lazne

9…Bb7 — 38.1% (552 parties)

1965 — Stein, Leonid vs Bobotsov, Milko G — 1-0 — ?
1967 — Pietzsch, Wolfgang vs Tringov, Georgi P — 1/2-1/2 — Sarajevo BIH
1967 — Rubtsova Tatiana vs Nedeljkovic, Alexand — 0-1 — Budva MNE
1968 — Van den Berg, Carel B vs Dahl, Hans-Christian — 1-0 — Ybbs
1969 — Watt, Daniel vs Verber Richard William — 0-1 — ?

9…b4 — 7.3% (106 parties)

1960 — Littlewood, John E vs Gligoric, Sofija — 1/2-1/2 — Engeland simultaan
1966 — Petersen, Finn vs Holm, Sejer — 0-1 — Copenhagen DEN
1968 — Westerinen, Heikki M.J. vs Kivipelto, Kaj — 1-0 — Helsinki FIN
1972 — Van Riemsdijk, Herman C. vs Chemin, Vitorio — 1-0 — Blumenau
1972 — Emma, Jaime vs Miguel, Nahuel — 0-1 — Zarate

9…Qc7 — 6.4% (93 parties)

1970 — Schwartz, Saul vs Blackstone, John — 1/2-1/2 — Santa Monica, CA USA
1972 — Mestel, A Jonathan vs Williams, Kevin D — 1-0 — Sidcup
1975 — Levy, David N L vs Dennehy, Anthony — 1-0 — Glasgow SCO
1976 — Nemes, Gyorgy vs Hansroul, Jacques — 1-0 — Kuortane
1981 — Schroeder, Christoph vs Meyer, Damon Blaine — 1-0 — GER

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