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

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

Côté adverse. Les fous enfermés en e7 et c8.

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

Plans. Nc3 (Développer Nb1) ; Bg5 (Clouer Nf6) ; Bc2 (Anticiper ...Na5).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur 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. ...Bg4 (Développer Bc8, clouer Nf3) ; ...Na5 (Attaquer Bb3) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
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

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

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