C93d — Spanish: Closed, Smyslov, 10.d4 Re8

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 h6 10.d4 Re8 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d5, Bb3 actif, paire de fous.
Faiblesses adverses : arriéré c7, Be7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé, 3 pièces non développées (B1, C1, A1).
Plans :
● Nc3 — Développer Nb1
● Bg5 — Clouer Nf6
● Bc2 — Anticiper ...Na5

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : paire de fous.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Be7 enfermé, Bc8 enfermé, arriéré c7.
Plans :
● ...Bg4 — Développer Bc8, clouer Nf3
● ...Na5 — Attaquer Bb3
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C93d — Closed Smyslov

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 h6 10.d4 Re8

Eval: [+0.44]

Les coups candidats

11.Nbd2 — 88.5% (2559 parties) →

Ambassadeurs : Flecher, Joseph (87x), Geller, Efim P. (41x), Gligorić, Svetozar (30x), De Coverly, Roger D (29x), Gligoric, Svetozar (28x), Matanovic, Aleksandar (26x), ? (25x), Djuric, Stefan (25x)

11.Be3 — 4.6% (133 parties) →

Ambassadeurs : Geller, Efim P. (6x), Kostro, Jerzy (5x), Ivkov, Borislav (5x), Portisch, Lajos (4x), Ciocaltea, Victor (4x), Minev, Nikolay N (4x), Tal, Mikhail (3x), Alatortsev, Vladimir N. (3x)

11.a4 — 3.6% (104 parties) →

Ambassadeurs : Robatsch, Karl (4x), Palladino, Mario (4x), Olafsson, Fridrik (2x), Panno, Oscar (2x), Gligorić, Svetozar (2x), Zheliandinov, Viktor (2x), Giesen, Dieter (2x), Lacroix, Serge (2x)

11.d5 — 1.0% (28 parties)

Ambassadeurs : Pietzsch, Wolfgang (2x), De Coverly, Roger D (2x), Katki, H. (1x), Heilemann, Paul (1x), Siveri, Armando (1x), Tatai, Stefano (1x), Spassky, Boris V. (1x), Spassky, B. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	11.Nbd2	11.Be3	11.a4	11.d5
<1800	39	87%	8%	5%	—
1800-2200	630	90%	3%	4%	1%
2200-2600	1002	90%	5%	3%	0%
2600+	43	95%	2%	2%	—

Évolution par décennie (% des parties)

Décennie	N parties	11.Nbd2	11.Be3	11.a4	11.d5
1940s	1	100%	—	—	—
1960s	456	80%	7%	5%	1%
1970s	429	83%	12%	3%	0%
1980s	220	91%	5%	1%	1%
1990s	485	94%	1%	3%	1%
2000s	543	89%	2%	6%	1%
2010s	637	91%	3%	3%	1%
2020s	119	96%	2%	1%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
11.Nbd2	91%	96%	▲ +4.7%
11.Be3	3%	2%	▼ -1.0%
11.a4	3%	1%	▼ -2.5%
11.d5	1%	1%	-0.4%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Smyslov, Vladimir — 5 parties
Karpov, Anatoly — 4 parties
Karpov, Aleksandr — 2 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 1 partie

Parties historiques

11.Nbd2 — 88.5% (2559 parties)

1949 — Najdorf, Miguel vs Aviles Guevara, Elvin Santiago — 1/2-1/2 — Mar del Plata ARG
1961 — Ajanski, Jordan S vs Filchev, Rusko — 0-1 — Sofia BUL
1961 — Tal, Mikhail vs Smyslov, Vasily — 1/2-1/2 — Baku Ch URS
1961 — Jansa, Vlastimil vs Spassky, Boris Vasily — 1/2-1/2 — It Central Chess Club, Moscow
1961 — Tal, Mikhail vs Smyslov, Vasily — 1/2-1/2 — Baku AZE

11.Be3 — 4.6% (133 parties)

1961 — Geller, Efim P. vs Tal, Mikhail — 1/2-1/2 — Moscow USSR Team ch
1961 — Geller, Efim P. vs Tal, Mikhail — 1/2-1/2 — Moscow RUS
1961 — Tal, Mikhail vs Smyslov, Vladimir — 1/2-1/2 — Moscow RUS
1962 — Lombardy, William J vs Lyman, Shelby — 1-0 — USA
1963 — Ivkov, Borislav vs Van den Berg, Cees — 1-0 — Beverwijk NED

11.a4 — 3.6% (104 parties)

1960 — Prahov, Valentin vs Kolarov, Atanas S. — 1/2-1/2 — Sofia ch BUL
1963 — Olafsson, Fridrik vs Panno, Oscar — 1/2-1/2 — Los Angeles, CA USA
1963 — Hietanen, Pauli vs Tucek, Jan — 1-0 — FI-CS corr
1963 — Geissert, Eberhard vs Pietzsch, Wolfgang — 1/2-1/2 — GDR-ch Aschersleben GER
1963 — Lee, Peter N vs Hartoch, Robert G — 0-1 — The Hague NED

11.d5 — 1.0% (28 parties)

1962 — Siveri, Armando vs Tatai, Stefano — 0-1 — Reggio Emilia ITA
1962 — Pietzsch, Wolfgang vs Spassky, Boris V. — 0-1 — Varna BUL
1962 — Pietzsch, Wolfgang vs Spassky, B. — 0-1 — Varna BUL
1962 — Ghitescu, Theodor vs Kolarov, Atanas S. — 1/2-1/2 — Varna olm
1967 — Katki, H. vs Heilemann, Paul — 0-1 — corr ol6

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● c7
Chaînes	● b2→c3, g2→h3, c3→d4	● a6→b5, d6→e5, c7→d6, g7→h6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1)	—
Cases faibles	—	—
Centre	● d4 (3v2), ● d5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bb3	● Bb3 Actif (mob. 6)
Be7		● Be7 Enfermé (mob. 1)
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, ● d4-d5	● …d6-d5

Partie
1962 Moscow – Round 1 – Dely, Peter – 0-1 – Bykhovsky, Anatoly A – G47 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8
1962 Reggio Emilia ITA – Round 11 – Siveri, Armando – 0-1 – Tatai, Stefano – G44 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8
1962 Varna – Round 1 – Pietzsch, Wolfgang – 0-1 – Spassky, B. – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8
1962 Varna olm – Round ? – Pietzsch, Wolfgang – 0-1 – Spassky, Boris V. – G479 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8
1962 Varna olm – Round 1 – Ghitescu, Theodor – 1/2-1/2 – Kolarov, Atanas S. – G76 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8
1964 Harrachov 6465 – Round 1 – Kavalek, Lubomir – 1-0 – Plachetka, Jan – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1965 Hastings ch-BCF – Round 2 – Harris John Raj – 0-1 – Penrose, Justin – G34 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1966 Titovo Uzice – Round 1 – Suetin, Alexey S – 1/2-1/2 – Matanovic, Aleksandar – G77 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1967 Budva – Round 1 – Suetin, Alexey S – 0-1 – Gligorić, Svetozar – G21 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1967 Moscow – Round 1 – Tal, Mikhail – 1/2-1/2 – Gligorić, Svetozar – G112 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1967 Skopje – Round 15 – Dely, Peter – 0-1 – Geller, Efim P – G120 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1967 Sousse Interzonal – Round 19 – Matanovic, Aleksandar – 1/2-1/2 – Reshevsky, Samuel – G176 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8
1967 URS Team Ch – Round ? – Suetin, Alexey S – 1/2-1/2 – Stein, Leonid – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1967 USSR – Round 1 – Suetin, Alexey S – 1/2-1/2 – Kholmov, Ratmir D – G43 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1968 Berlin – Round 1 – Barczay, Laszlo – 1-0 – Radovici, Corvin – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 h6 10. d4 Re8
1968 Palma de Mallorca – Round 12 – Matanovic, Aleksandar – 1/2-1/2 – Gligorić, Svetozar – G109 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1968 Skopje/Ohrid – Round 12 – Matanovic, Aleksandar – 1/2-1/2 – Gligorić, Svetozar – G100 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1969 Ljubljana – Round ? – Matanovic, Aleksandar – 1/2-1/2 – Gligorić, Svetozar – G24 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1969 Sarajevo – Round 7 – Parma, Bruno – 1/2-1/2 – Gligorić, Svetozar – G54 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
1969 Vidmar Memorial – Round 9 – Matanovic, Aleksandar – 1/2-1/2 – Gheorghiu, Florin – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6 10. d4 Re8

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