Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● a6→b5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1)	● b4 (2v0), ● d4 (2v1)
Cases faibles	—	—
Centre	● d5 (2v1)	● d4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb3	● Bb3 Actif (mob. 5)
Be7		● Be7 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn f7
Non développées	3 (● b1, ● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c2-c4, ● d2-d4	● …d7-d5

C86e — Spanish: Worrall Attack, 7…O-O 8.a4

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.a4 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. a5 (28 % des parties) ; c3 (Renforcer le centre — 20 % des parties) ; d3 (Solidifier le centre — 18 % des parties) ; axb5 (Capture en b5, Expansion aile dame — 18 % des parties) ; d4 (Occuper le centre — 9 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...b4 (Expansion aile dame — 51 % des parties) ; ...Bb7 (Développer c8 — 25 % des parties) ; ...Rb8 (18 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1931 Bled – Round 1 – Spielmann, Rudolf – 1-0 – Vidmar Milan – G106 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Bb7 9. c3 d5 10. d3 dxe4
1938 URS Ch, semi final – Round 1 – Chistiakov, Alexander – 1-0 – Pogrebissky, Iosif – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Rb8 9. axb5 axb5 10. c3 d5
1941 New York – Round 1 – Bernstein, Sidney – 1-0 – Feldman Pratt, Jonathan – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 d6 10. c3 Rb8
1941 New York – Round 1 – Pinkus, Albert – 0-1 – Bernstein, Sidney – G21 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. c3 Rb8 10. Bc4 d5
1941 New York State CA – Round 2 – Seidman, Herbert – 1-0 – Lasker, Edward – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Rb8 9. axb5 axb5 10. c3 d5
1946 Pittsburgh Open – Round 1 – Seidman, Herbert – 1-0 – Jirov Katz, Maayan – G85 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. c3 d6 10. d4 Bg4
1947 Weidenau – Round 1 – Niephaus, Walter – 0-1 – Khodarkovsky, Michael – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. d3 d6 10. c3 Na5
1948 JUG Ch – Round 10 – Horvat, Rudolf – 0-1 – Nedeljkovic, Srecko M – G50 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 Rb8 10. Bc4 Ra8
1949 Moskou ch-URS – Round 1 – Aronin, Lev – 1/2-1/2 – Furman, Slavomir – G129 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 d6 10. c3 Rb8
1949 URS-ch17 – Round 13 – Aronin, Lev – 1/2-1/2 – Furman, Semyon – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 d6 10. c3 Rb8
1951 Mar del Plata zt – Round 15 – De Souza Mendes, Joao – 0-1 – Maderna, Carlos – G149 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. O-O O-O 8. a4 Rb8 9. axb5 axb5 10. Nc3 d6
1951 Mar del Plata zt – Round 17 – Flores Alvarez, Rodrigo – 1/2-1/2 – Maderna, Carlos – G169 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Rb8 9. axb5 axb5 10. c3 d5
1955 Hungary – Round 8 – Keres, Paul – 1-0 – Kluger, Gyula – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Bb7 9. c3 d5 10. d3 Qd6
1955 Moscow Ch – Round 1 – Chistiakov, Alexander – 0-1 – Ragozin, Viacheslav – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Bb7 9. d3 b4 10. Bg5 h6
1956 Moscow olm fin-A – Round 3 – Keres, Paul Petrovich – 1/2-1/2 – Unzicker, Wolfgang – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 d5 9. d3 Bg4 10. c3 d4
1957 URS Ch, semi final – Round 12 – Chistiakov, Alexander – 0-1 – Bannik, Anatolij – G112 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. d3 d6 10. a5 Bg4
1957 URS Ch, semi final – Round 16 – Goldberg, Grigory – 1-0 – Nezhmetdinov, Rashid – G147 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 O-O 8. a4 b4 9. a5 d6 10. h3 Be6
1959 DEN Ch – Round 2 – Petersen, Finn – 1/2-1/2 – Nielsen, Hartvig – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 Nd4 10. Nxd4 exd4
1959 FRG Ch Nuerenberg GER – Round 11 – Lehmann, Heinz – 1/2-1/2 – Wolk, Sigmund – G40 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Bb7 9. c3 d5 10. d3 d4
1960 Aalborg – Round 1 – Petersen, Finn – 0-1 – From, Sigfred – G28 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Qe2 O-O 8. a4 Rb8 9. axb5 axb5 10. c3 d6
1960 Ljubljana – Round 10 – Ciric, Dragoljub M – 1/2-1/2 – Bulat, Ante – G76 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Rb8 9. axb5 axb5 10. Nc3 b4
1960 New York ch-USA – Round 9 – Bisguier, Arthur B – 1-0 – Kalme, G. – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Bb7 9. d3 d6 10. axb5 axb5
1962 Skopje ch17-YUG – Round 1 – Ciric, Dimitrije – 1-0 – Mejic, Petar – G71 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. d4 exd4 10. e5 Ne8
1964 Amsterdam Interzonal – Round 3 – Tringov, Georgi P – 1/2-1/2 – Smyslov, Vladimir – G27 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 d6 10. c3 Rb8
1964 Belgrade – Round 6 – Ciric, Dragoljub M – 1/2-1/2 – Matanovic, Aleksandar – G45 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. d4 d6 10. c3 bxc3
1964 Tel Aviv olm fin-C – Round 12 – Madan Berriel, Ramon Emilio – 1/2-1/2 – Westerinen, Heikki M.J. – G75 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Bb7 9. c3 d5 10. d3 Qd6
1964 Tel Aviv olm prel – Round 7 – Baxter, RWM. – 1/2-1/2 – Zinser, Sylvain – G272 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 d6 10. c3 Bg4
1965 Titograd – Round 15 – Buljovcic, Ivan – 1-0 – Susic, Idriz – G110 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 O-O 8. a4 b4 9. a5 d6 10. h3 Bb7
1966 WchTJ U26 prel – Round 3 – Caplan, Julio – 1-0 – Tompa, Janos – G22 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Rb8 9. axb5 axb5 10. Nc3 b4
1968 Hoogovens – Round 5 – Ciric, Dimitrije – 1/2-1/2 – Langeweg, Kick – G53 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 O-O 8. a4 b4 9. d4 Nxd4 10. Nxd4 exd4
1968 Skopje/Ohrid – Round 8 – Ilievski, Dimitar – 0-1 – Wade, Robert G – G69 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 Rb8 9. axb5 axb5 10. c3 d5
World Blitz 2022 – Round 5.32 – Nepomniachtchi, Ian – 0-1 – Narayanan, Sunilduth Lyna – G254 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. a4 b4 9. a5 Bb7 10. d3 h6

C86e — Spanish: Worrall Attack (1931)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.a4

Les coups candidats

8…b4 — 52.4% (97 parties)

Ambassadeurs : Ciric, Dragoljub M (6x), Tal, Mikhail (2x), Korchnoi, Viktor (2x), Leoncini, Mario (2x), Popa, Florin (2x), Hassall, Kim (2x), Tranmer, Eileen Betsy (1x), Walsh, James Joseph (1x)

8…Bb7 — 27.6% (51 parties)

Ambassadeurs : Filipowicz, Andrzej (3x), Bremond, Eric (2x), Kolarov, Atanas Stefanov (1x), Madan Rajasekaran (1x), Westerinen, Heikki M.J. (1x), Keres, Paul (1x), Kluger, Gyula (1x), Lehmann, Heinz (1x)

8…Rb8 — 16.2% (30 parties)

Ambassadeurs : Maderna, Carlos (2x), Ciric, Dragoljub M (2x), De Souza Mendes, Joao (1x), Ostojic, Miodrag (1x), Pollak, Georg (1x), Kaladnik (1x), Budner, Eugenuisz (1x), Rivise, Irving (1x)

8…d5 — 1.6% (3 parties)

Ambassadeurs : Keres, Paul Petrovich (1x), Unzicker, Ferdinand, Dr. (1x), Nalovic, Zoran (1x), Jovcic, Milan (1x), Broberger, Henry (1x), Boroja, Iva (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…b4	8…Bb7	8…Rb8	8…d5
<1800	5	40%	40%	—	—
1800-2200	57	58%	21%	19%	—
2200-2600	59	51%	34%	15%	—
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8…b4	8…Bb7	8…Rb8	8…d5
1950s	16	50%	19%	25%	6%
1960s	27	59%	19%	19%	4%
1970s	11	45%	27%	18%	9%
1980s	15	40%	47%	7%	—
1990s	33	48%	24%	24%	—
2000s	30	50%	30%	13%	—
2010s	39	56%	31%	13%	—
2020s	14	64%	29%	7%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…b4	56%	64%	▲ +7.9%
8…Bb7	31%	29%	▼ -2.2%
8…Rb8	13%	7%	▼ -5.7%
8…d5	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties

Parties historiques

8…b4 — 52.4% (97 parties)

1953 — Polak, Tomas vs Estrin, Yakov01 B — 0-1 — Leningrad RUS
1955 — Tranmer, Eileen Betsy vs Walsh, James Joseph — 0-1 — Hastings ENG
1956 — Nemec, Tadeus vs Weiner, Milan — 1/2-1/2 — Bratislava SVK
1957 — Goldberg, Grigory vs Nezhmetdinov, Rashid — 1-0 — Kiev UKR
1957 — Lehmann, Abel vs Kluger, Carsten — 1-0 — Varna BUL

8…Bb7 — 27.6% (51 parties)

1955 — Keres, Paul vs Kluger, Gyula — 1-0 — Budapest HUN
1955 — Chistiakov, Alexander vs Ragozin, Viacheslav — 0-1 — Moscow RUS
1959 — Lehmann, Heinz vs Wolk, Sigmund — 1/2-1/2 — FRG-ch Nuerenberg GER
1960 — Bisguier, Arthur B vs Kalme, G. — 1-0 — New York ch-USA
1964 — Madan Rajasekaran vs Westerinen, Heikki M.J. — 1/2-1/2 — Tel Aviv ISR

8…Rb8 — 16.2% (30 parties)

1951 — De Souza Mendes, Joao vs Maderna, Carlos — 0-1 — Mar del Plata ARG
1951 — Flores Alvarez, Rodrigo vs Maderna, Carlos — 1/2-1/2 — Mar del Plata ARG
1954 — Rivise, Irving vs Martin, Raymond — 1-0 — San Francisco, Ca
1956 — Kaladnik vs Budner, Eugenuisz — 0-1 — Dopisni
1960 — Petersen, Finn vs Franco, Sigifredo — 0-1 — Aalborg DEN

8…d5 — 1.6% (3 parties)

1956 — Keres, Paul Petrovich vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Moscow olm fin-A
1969 — Nalovic, Zoran vs Jovcic, Milan — 1/2-1/2 — ?
1976 — Broberger, Henry vs Boroja, Iva — 1-0 — corr SWE/K tt

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