Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d2→c3	● a6→b5, d6→e5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1)	● g4 (2v0)
Cases faibles	—	—
Centre	● d5 (2v1)	● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb3	● Bb3 Actif (mob. 6)
Be7		● Be7 Ok (mob. 0)
Bc8		● Bc8 Non développé (mob. 6)
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	● c3-c4, ● d2-d4	● …d6-d5

C86i — Spanish: Worrall Attack, 7…O-O 8.c3 d6 9.Rd1

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.c3 d6 9.Rd1 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bc2 (Anticiper ...Na5 — 72 % des parties) ; d4 (Occuper le centre — 11 % des parties) ; h3 (Empêcher ...Bg4 — 8 % des parties) ; d3 (Solidifier le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Na5 (Attaquer Bb3 — 72 % des parties) ; ...Bg4 (Fou actif (mobilité 7), Développer c8 — 12 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1941 Leningrad/Moscow – Round 2 – Keres, Paul – 1-0 – Lilienthal, Andor – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1942 Salzburg – Round ? – Alekhine, Alexander – 1-0 – Keres, Paul – G29 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1942 Salzburg – Round 1 – Alekhine, Alexander – 1-0 – Keres, Paul – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1952 Helsinki olm – Round 1 – Filip, Marius Liviu – 0-1 – Gligoric, Sofija – G164 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1952 Mar del Plata – Round 16 – Michel, Pascal – 1-0 – Garcia Vera, Romeo – G123 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1952 Rio de Janeiro – Round 2 – Bolbochan, Julio – 1-0 – Vasconcelos, Fernando – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1953 GER Ch 15th – Round 7 – Hoffmann, Hans – 0-1 – Platz, Hans – 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. c3 d6 9. Rd1 Bg4 10. d3 Na5
1954 Zonal – Round 19 – Kramer, Haije – 1-0 – Mulcahy, Edmond – G31 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 7. c3 Be7 8. Qe2 O-O 9. Rd1 Bg4 10. h3 Bh5
1955 Gothenburg Interzonal – Round 20 – Spassky, Boris Vasily – 1/2-1/2 – Unzicker, Wolfgang – G193 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. c3 O-O 8. O-O d6 9. Rd1 Na5 10. Bc2 c5
1955 Odessa Odessa UKR – Round ? – Lein, Anatoly – 1-0 – Poliak, Evsey – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. c3 d6 8. O-O O-O 9. Rd1 Na5 10. Bc2 c5
1956 Dublin – Round 1 – Stanton, William – 0-1 – Donner, Jan-Hein – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1956 Mar del Plata – Round 3 – Pelikan, Anna – 1-0 – Wexler, Eithan – G21 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 d6 6. c3 Be7 7. O-O O-O 8. Rd1 b5 9. Bb3 Na5 10. Bc2 c5
1957 EU Team Ch – Round 1 – Spassky, Boris Vasily – 1/2-1/2 – Kozma, Julius – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1957 URS-JUG – Round 4 – Tolush, Alexander V – 1/2-1/2 – Ivkov, Borislav – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1958 Buenos Aires CA – Round 10 – Pelikan, Anna – 1/2-1/2 – Piazzini, Luis – G26 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. O-O O-O 8. c3 d6 9. Rd1 Bg4 10. h3 Bh5
1958 Hamburg Ch – Round 4 – Rhodin, Bodo – 1/2-1/2 – Rellstab, Ludwig Sr – 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. c3 d6 9. Rd1 Bg4 10. h3 Bh5
1960 Buenos Aires ch-ARG – Round 15 – Pelikan, Anna – 1/2-1/2 – Bolbochan, J. – G109 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. O-O O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1960 Buenos Aires ch-ARG – Round 17 – Pelikan, Anna – 1/2-1/2 – Brunet Espinosa, Roger – G125 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. O-O O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1960 BUL-ch14 Sofia BUL – Round 18 – Daskalov, Georgi – 1/2-1/2 – Kolarov, Atanas S. – G69 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. O-O O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c6
1961 Buenos Aires ch-ARG – Round 1 – Pelikan, Anna – 0-1 – Alonso-Lej De Las Casas, Fernando – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1963 Beverwijk – Round 1 – Mohrlok, Dieter – 1/2-1/2 – Rellstab, Ludwig – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Qe2 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1966 Buenos Aires ch-ARG – Round 11 – Pelikan, Anna – 1/2-1/2 – Bronstein, Luis Marcos – G32 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. c3 b5 7. Bb3 O-O 8. O-O d6 9. Rd1 Na5 10. d4 Nxb3
1966 Mar del Plata – Round 11 – Pelikan, Jan – 1/2-1/2 – Emma, Jaime – G51 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
1966 URS Team Ch – Round 1 – Keres, Paul – 0-1 – Lutikov, Anatoly S – G60 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1968 It Buesum GER – Round 14 – Huebner, Robert – 1/2-1/2 – Kolarov, Atanas S. – G65 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d6 9. Rd1 Na5 10. Bc2 c5
1968 URS Team Ch – Round 1 – Mosionzhik, Ilya – 1/2-1/2 – Zaitsev, Igor A – G142 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Bg4 10. h3 Bh5
1968 URS Team Ch – Round 1 – Moskalenko, Viktor – 0-1 – Kushnir, Alla – G141 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5
PCA, Tal Memorial 1995 – Round 5 – Anand, Viswanathan – 1-0 – Timman, Jan H – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d6 9. Rd1 Bg4 10. h3 Bh5
World Blitz 2007 – Round 4 – Adams, Michael – 1-0 – Karpov, Anatoly – G37 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. O-O d6 8. c3 O-O 9. Rd1 Na5 10. Bc2 c5

C86i — Spanish: Worrall Attack (1941)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.c3 d6 9.Rd1

Les coups candidats

9…Na5 — 70.7% (889 parties)

Ambassadeurs : Cooper, Lawrence H (7x), Pelikán, Jiří (6x), Fomina, Tatyana (6x), Bok, Benjamin (6x), Madl, Ildiko (6x), Varshini, V (6x), Ducarmon, Quinten (5x), Spence, David J (5x)

9…Bg4 — 17.8% (224 parties)

Ambassadeurs : Vidarsson, Jon G (3x), Estrada Nieto, Julian (2x), Munoz Moreno, Francisco Javier (2x), Colin, Vincent (2x), Promyshlyanskiy, Vitaliy (2x), Pelikán, Jiří (1x), Piazzini, Luis (1x), Blackstone, John (1x)

9…Bb7 — 3.7% (46 parties)

Ambassadeurs : Derhy Menie Mbele Jean (1x), Rolland, Pierre (1x), Strikovic, Aleksa (1x), Ilincic, Zlatko (1x), Strobel, Matthias (1x), Doerflinger, Josef (1x), Gyllenberg, Mats (1x), Valkeajarvi Simo (1x)

9…Be6 — 2.2% (28 parties)

Ambassadeurs : Kosten, Anthony C. (1x), Flear, Glenn C (1x), Barlov, Dragan (1x), Velimirovic, Dragoljub (1x), Strikovic, Aleksa (1x), Shirov, Alexei (1x), Snowden, E. (1x), Allen Obed (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Na5	9…Bg4	9…Bb7	9…Be6
<1800	78	58%	26%	9%	4%
1800-2200	493	73%	17%	4%	2%
2200-2600	552	70%	18%	3%	3%
2600+	14	79%	14%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	9…Na5	9…Bg4	9…Bb7	9…Be6
1950s	26	77%	19%	—	—
1960s	24	71%	17%	4%	—
1970s	17	71%	12%	6%	—
1980s	30	63%	13%	7%	7%
1990s	207	64%	20%	5%	5%
2000s	400	71%	20%	3%	2%
2010s	478	75%	16%	4%	1%
2020s	76	63%	18%	1%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Na5	75%	63%	▼ -11.7%
9…Bg4	16%	18%	▲ +2.7%
9…Bb7	4%	1%	▼ -2.9%
9…Be6	1%	4%	▲ +2.5%

Joueurs célèbres

Champions du monde dans cette position

Hou, Yifan — 4 parties
Carlsen, Magnus — 3 parties
Karpov, Anatoly — 2 parties
Anand, Viswanathan — 2 parties

Parties historiques

9…Na5 — 70.7% (889 parties)

1952 — Bolbochan, Julio vs Vasconcelos, Fernando — 1-0 — Rio de Janeiro BRA
1952 — Filip, Marius Liviu vs Gligoric, Sofija — 0-1 — Helsinki olm
1952 — Tshiknopoulos vs Keres, Paul Petrovich — 0-1 — 05, Helsinki ol prel
1952 — Michel, Clement Paul vs Garcia Vera, Romeo — 1-0 — Mar del Plata ARG
1953 — Pelikán, Jiří vs Aarsvold, Espen — 1/2-1/2 — cr.

9…Bg4 — 17.8% (224 parties)

1953 — Hoffmann, Hans vs Platz, Hans — 0-1 — Leipzig GER
1954 — Kramer, Haije vs Mulcahy, Edmond — 1-0 — Munich GER
1955 — Bartel, Helmut vs Schlaugat, Michael — 0-1 — cr.
1958 — Pelikán, Jiří vs Piazzini, Luis — 1/2-1/2 — Buenos Aires ARG
1958 — Rhodin, Bodo vs Rellstab, Ludwig — 1/2-1/2 — Hamburg GER

9…Bb7 — 3.7% (46 parties)

1966 — Derhy Menie Mbele Jean vs Rolland, Pierre — 0-1 — Grenoble FRA
1975 — Gyllenberg, Mats vs Valkeajarvi Simo — 1-0 — ?
1986 — Strikovic, Aleksa vs Ilincic, Zlatko — 0-1 — Budva MNE
1987 — Strobel, Matthias vs Doerflinger, Josef — 1/2-1/2 — Wurtemberg
1991 — Estrada Nieto, Julian vs Zarnicki, Pablo — 0-1 — Buenos Aires ARG

9…Be6 — 2.2% (28 parties)

1985 — Barlov, Dragan vs Velimirovic, Dragoljub — 0-1 — Vrsac SRB
1989 — Kosten, Anthony C. vs Flear, Glenn C — 1/2-1/2 — Hastings ENG
1990 — Strikovic, Aleksa vs Shirov, Alexei — 1-0 — Val Maubuee open
1990 — Weill, Roland vs Pytel, Martin — 1-0 — Toulouse FRA
1993 — McDonnell, James J. vs Cobb, James — 0-1 — BCF-ch Dundee SCO

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