E09e — Catalan: Closed, Main Line, Sokolsky Variation

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2 b6 9.b3 a5 10.Bb2 Ba6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte e5, paire de fous.
Faiblesses adverses : Ba6 mauvais fou.
Problèmes : Bg2 enfermé.
Plans :
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte b4, avant-poste b4(F), Ba6 actif, Be7 actif, paire de fous.
Faiblesses adverses : Bg2 enfermé.
Plans :
● ...Bg4 — Clouer Nf3
● ...c5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E09e — Closed Main Line Sokolsky Variation

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2 b6 9.b3 a5 10.Bb2 Ba6

Eval: [+0.55]

Les coups candidats

11.e4 — 60.9% (14 parties)

Ambassadeurs : Minev, Nikolay N (2x), Polak, JAJ. (1x), Fichtl, Jiri (1x), Luckis, Marcos (1x), Pappier, Carlos (1x), Gligoric, Svetozar (1x), Nedeljkovic, Srecko M (1x), Stahlberg, Gideon (1x)

11.Rfe1 — 17.4% (4 parties)

Ambassadeurs : Taimanov, Mark (1x), Sokolsky, Alexey (1x), Wang, Philip (1x), Bhat, Vinay (1x), Brunsteins, Daniel (1x), Koch, Christian (1x), Juergens, Klaus (1x), Lerch, Johannes (1x)

11.Ne5 — 8.7% (2 parties)

Ambassadeurs : Novotelnov, Nikolai (1x), Sokolsky, Alexey (1x), Schreiber, Roland (1x), Machacek, Jan (1x)

11.Rfd1 — 8.7% (2 parties)

Ambassadeurs : Seda Irizarry, Ian J. (1x), Bhat, Vinay (1x), Kourousis, Epameinondas (1x), Pikula, Dejan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	11.e4	11.Rfe1	11.Ne5	11.Rfd1
<1800	1	—	—	100%	—
1800-2200	2	50%	—	—	—
2200-2600	12	67%	25%	—	8%

Évolution par décennie (% des parties)

Décennie	N parties	11.e4	11.Rfe1	11.Ne5	11.Rfd1
1940s	2	—	50%	50%	—
1950s	3	100%	—	—	—
1960s	1	100%	—	—	—
1970s	3	100%	—	—	—
1990s	2	50%	—	50%	—
2000s	5	40%	40%	—	20%
2010s	3	67%	—	—	33%
2020s	4	50%	25%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
11.e4	67%	50%	▼ -16.7%
11.Rfe1	0%	25%	▲ +25.0%
11.Ne5	0%	0%	+0.0%
11.Rfd1	33%	0%	▼ -33.3%

Parties historiques

11.e4 — 60.9% (14 parties)

1951 — Luckis, Marcos vs Pappier, Carlos — 1/2-1/2 — Buenos Aires ARG
1951 — Gligoric, Svetozar vs Nedeljkovic, Srecko M — 1/2-1/2 — Sarajevo BIH
1958 — Stahlberg, Gideon vs Matanovic, Aleksandar — 0-1 — Beverwijk NED
1961 — Polak, JAJ. vs Fichtl, Jiri — 1-0 — Brno CZE
1971 — Cobo Arteaga, Eldis vs Minev, Nikolay N — 1/2-1/2 — Baja

11.Rfe1 — 17.4% (4 parties)

1949 — Taimanov, Mark vs Sokolsky, Alexey — 1-0 — Moskou ch-URS
2001 — Wang, Philip vs Bhat, Vinay — 0-1 — Tulsa
2005 — Brunsteins, Daniel vs Koch, Christian — 1/2-1/2 — Chessfriend.com
2023 — Juergens, Klaus vs Lerch, Johannes — 1-0 — Austria AUT

11.Ne5 — 8.7% (2 parties)

1947 — Novotelnov, Nikolai vs Sokolsky, Alexey — 1/2-1/2 — Moscow RUS
1994 — Schreiber, Roland vs Machacek, Jan — 1-0 — Bayern

11.Rfd1 — 8.7% (2 parties)

2004 — Seda Irizarry, Ian J. vs Bhat, Vinay — 0-1 — Dos Hermanas ESP
2016 — Kourousis, Epameinondas vs Pikula, Dejan — 0-1 — Wuerttemberg

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● b6→a5, c6→d5, e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bb2	● Bb2 Ok (mob. 3)
Bg2	● Bg2 Enfermé (mob. 2)
Ba6		● Ba6 Actif (mob. 4)
Be7		● Be7 Actif (mob. 4)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	1 (a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5	● …c6-c5, ● …e6-e5

Partie
1947 Chigorin Memorial – Round 1 – Novotelnov, Nikolai – 1/2-1/2 – Sokolsky, Alexey – G19 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. Nbd2 c6 7. Qc2 b6 8. O-O a5 9. b3 Ba6 10. Bb2 Nbd7
1949 Moskou ch-URS – Round 1 – Taimanov, Mark E – 1-0 – Sokolsky, Alexey – G50 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. Qc2 c6 6. Nf3 Be7 7. O-O O-O 8. Nbd2 b6 9. b3 a5 10. Bb2 Ba6
1951 Buenos Aires – Round 11 – Luckis, Marcos – 1/2-1/2 – Pappier, Carlos – G68 1. c4 e6 2. d4 d5 3. g3 Nf6 4. Nf3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Nbd2 c6 8. b3 b6 9. Bb2 a5 10. Qc2 Ba6
1951 YUG Ch 7th – Round 19 – Gligoric, Svetozar – 1/2-1/2 – Nedeljkovic, Srecko M – G158 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2 c6 8. b3 a5 9. Bb2 b6 10. Nbd2 Ba6
1958 Hoogovens – Round 5 – Stahlberg, Gideon – 0-1 – Matanovic, Aleksandar – G21 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. d4 O-O 6. O-O c6 7. Qc2 Nbd7 8. b3 b6 9. Bb2 a5 10. Nbd2 Ba6

1947 Chigorin Memorial – Round 1 – Novotelnov, Nikolai – 1/2-1/2 – Sokolsky, Alexey – G19

1949 Moskou ch-URS – Round 1 – Taimanov, Mark E – 1-0 – Sokolsky, Alexey – G50

1951 Buenos Aires – Round 11 – Luckis, Marcos – 1/2-1/2 – Pappier, Carlos – G68

1951 YUG Ch 7th – Round 19 – Gligoric, Svetozar – 1/2-1/2 – Nedeljkovic, Srecko M – G158

1958 Hoogovens – Round 5 – Stahlberg, Gideon – 0-1 – Matanovic, Aleksandar – G21