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

Atouts. Les Blancs s'appuient sur la case forte d5, un fou actif en b3 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nbd2 (Développer Nb1) ; d3 (Libérer Bc1) ; h3 (Empêcher ...Bg4) ; c3 (Préparer d4) ; Bc2 (Anticiper ...Na5).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur les cases fortes b4 et d4, un fou actif en e7 et la paire de fous.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...d6 (Libérer Bc8) ; ...Na5 (Attaquer Bb3) ; ...Bg4 (Clouer Nf3) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

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-c3, ● d2-d3	● …d7-d6, ● …d7-d5

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 — Worrall Attack

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

Eval: [+0.00]

Les coups candidats

8…b4 — 52.5% (104 parties)

Ambassadeurs : Ciric, Dragoljub M (3x), Ciric, Dimitrije (3x), Bernstein, Sidney (2x), Aronin, Lev (2x), Leoncini, Mario (2x), Popa, Florin (2x), Hassall, Kim (2x), Znosko-Borovsky, Eugene (1x)

8…Bb7 — 26.3% (52 parties)

Ambassadeurs : Filipowicz, Andrzej (3x), Bremond, Edouard (2x), Spielmann, Rudolf (1x), Vidmar Milan (1x), Kolarov, Atanas Stefanov (1x), Madan Berriel, Ramon Emilio (1x), Westerinen, Heikki M.J. (1x), Keres, Paul (1x)

8…Rb8 — 17.7% (35 parties)

Ambassadeurs : Lasker, Edward (3x), Maderna, Carlos (2x), Ciric, Dragoljub M (2x), Belson, John Harold (1x), Divinsky, Nathan (1x), Chistiakov, Alexander (1x), Pogrebissky, Iosif (1x), Seidman, Herbert (1x)

8…d5 — 1.5% (3 parties)

Ambassadeurs : Keres, Paul Petrovich (1x), Unzicker, Wolfgang (1x), Nalovic Zoran (1x), Jovcic, Milan (1x), Broberger, Henry (1x), Ivegard, Borje (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	3	33%	33%	—	—
1800-2200	47	62%	21%	15%	—
2200-2600	61	52%	31%	16%	—
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8…b4	8…Bb7	8…Rb8	8…d5
1930s	3	33%	33%	33%	—
1940s	11	64%	—	36%	—
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	13	62%	31%	8%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…b4	56%	62%	▲ +5.1%
8…Bb7	31%	31%	+0.0%
8…Rb8	13%	8%	▼ -5.1%
8…d5	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 1 partie
Tal, Mikhail — 1 partie

Parties historiques

8…b4 — 52.5% (104 parties)

1931 — Znosko-Borovsky, Eugene vs Cukierman, Josef — 1-0 — Paris FRA
1941 — Bernstein, Sidney vs Feldman Pratt, Jonathan — 1-0 — New York, NY USA
1941 — Pinkus, Albert vs Bernstein, Sidney — 0-1 — New York, NY USA
1946 — Seidman, Herbert vs Jirov Katz, Maayan — 1-0 — Pittsburgh
1947 — Niephaus, Walter vs Khodarkovsky, Michael — 0-1 — Weidenau

8…Bb7 — 26.3% (52 parties)

1931 — Spielmann, Rudolf vs Vidmar Milan — 1-0 — Bled SLO
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, NY USA

8…Rb8 — 17.7% (35 parties)

1938 — Chistiakov, Alexander vs Pogrebissky, Iosif — 1-0 — Kiev UKR
1941 — Seidman, Herbert vs Lasker, Edward — 1-0 — Hamilton
1941 — Seidman vs Lasker, Edward — 1-0 — New York State Championship
1942 — Pinkus, Lutz vs Lasker, Edward — 1-0 — New York Manhattan
1945 — Belson, John Harold vs Divinsky, Nathan — 1-0 — Saskatoon

8…d5 — 1.5% (3 parties)

1956 — Keres, Paul Petrovich vs Unzicker, Wolfgang — 1/2-1/2 — Moscow olm fin-A
1969 — Nalovic Zoran vs Jovcic, Milan — 1/2-1/2 — ?
1976 — Broberger, Henry vs Ivegard, Borje — 1-0 — corr SWE/K tt

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