C93i — Spanish: Closed, Smyslov, 12.a3

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 11.Nbd2 Bf8 12.a3 * ● 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 les cases fortes b4 et d5, un fou actif en b3 et la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8.

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

Plans. Bg5 (Clouer Nf6) ; Bc2 (Anticiper ...Na5).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Plusieurs pièces dorment encore (les fous c8 et f8 et la tour a8).

Plans. ...Bg4 (Développer Bc8, clouer Nf3) ; ...Be7 (Développer Bf8) ; ...Na5 (Attaquer Bb3) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→a3, b2→c3, g2→h3, c3→d4	● a6→b5, d6→e5, c7→d6, g7→h6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b4 (2v1), ● d5 (2v1)	—
Cases faibles	—	—
Centre	● d5 (2v1), ● e4 (2v1)	● e5 (3v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb3	● Bb3 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 6)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn f7
Non développées	2 (c1, a1)	3 (c8, f8, 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
1963 Kiev Avantgard Ch – Round ? – Sakharov, Yuri N – 0-1 – Shianovsky, Vladislav I – G48 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 Moskou zt – Round 12 – Suetin, Alexey S – 1/2-1/2 – Spassky, Boris V. – G14 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 Budapest – Round 1 – Vasiukov, Evgeni – 1/2-1/2 – Augustin, Josef – G47 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 Hamburg etc – Round 1 – Zuidema, Coen – 1/2-1/2 – Hecht, Hans-Joachim – G39 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 Kiev (Ukraine) – Round 1 – Nakonechny, Sergey – 0-1 – Kots, Yuri I – G1 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
1965 Leipzig Inter 1st – Round 3 – Fuchs, Reinhart – 1/2-1/2 – Antoshin, Vladimir S – G3 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 POL Ch 23th sf – Round 3 – Schmidt, Wlodzimierz – 0-1 – Erenski, Przemyslaw – G8 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
1965 Yerevan – Round 6 – Averbakh, Yuri L – 1-0 – Matanovic, Aleksandar – G35 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 CSR Ch Int – Round 10 – Kavalek, Lubomir – 1-0 – Augustin, Josef – G15 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 Hoogovens – Round 8 – Van den Berg, Cees – 1/2-1/2 – Szabo, Ladislav – G40 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
1966 Stockholm jub 6667 – Round 7 – Litsberger, Rune – 0-1 – Kinnmark, Ove – G25 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
1966 WchTJ U26 prel – Round 3 – Hennings, Artur – 1-0 – Rodriguez Cordoba, Jesus R – G19 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 – 1-0 – Geller, Efim P – 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 FRG Ch 09th – Round 10 – Mohrlok, Dieter – 0-1 – Hecht, Hans-Joachim – G13 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 Harrachov – Round 1 – Heinsohn, Guenther – 0-1 – Faibisovich, Vadim Z – G101 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3 d6 9. c3 h6 10. d4 Re8
1967 Leningrad – Round 1 – Zeitlein, Michael – 1-0 – Stoliar, Efim Samoilovich – G33 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 18 – Byrne, Ray – 1/2-1/2 – Gligoric, Sofija – G168 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 20 – Byrne, Ray – 1/2-1/2 – Matanovic, Anto – G187 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 YUG Ch 22th – Round 9 – Bradvarevic, Aleksandar – 1/2-1/2 – Sokolov, Vladimir – G49 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 Lublin PKWN 4th – Round 8 – Filep, Tibor – 1/2-1/2 – Pytel, Krzysztof – G28 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 New York ch-USA – Round 11 – Byrne, Ray – 1-0 – Rossolimo, Nicolas – G63 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 Reykjavik – Round 1 – Byrne, Ray – 1/2-1/2 – Ostojic, Predrag – G59 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 Yugoslavia – Round 1 – Parma, Bruno – 1/2-1/2 – Gligorić, Svetozar – G15 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 JUG-24ch Novi Travnik – Round 4 – Parma, Bruno – 1/2-1/2 – Stupica, Janez – G3 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. d4 Re8 10. Nbd2 Bf8
1969 Palma de Mallorca – Round 14 – Unzicker, Wolfgang – 1-0 – Medina-Garcia, Antonio – G126 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 Raach zt – Round 17 – Matanovic, Aleksandar – 0-1 – Hecht, Hans-Joachim – G146 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
1970 Vinkovci – Round 6 – Ledic, Tomislav – 1/2-1/2 – Tomic, Dragoslav – G98 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 O-O 9. h3 h6 10. d4 Re8
World Blitz Final 2012 – Round 26 – Grischuk, Alexander – 0-1 – Carlsen, Magnus – G202 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. a3 h6 10. h3 Re8

C93i — 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 11.Nbd2 Bf8 12.a3

Eval: [+0.32]

Les coups candidats

12…Bb7 — 60.5% (95 parties)

Ambassadeurs : Byrne, Ray (3x), Suetin, Alexey S (3x), Augustin, Josef (3x), Watzka, Horst (3x), Hecht, Hans-Joachim (2x), Waltemathe, A. (2x), Matanovic, Aleksandar (2x), Perkins, Alan H (2x)

12…Bd7 — 28.7% (45 parties)

Ambassadeurs : Balashov, Yuri (3x), Parma, Bruno (2x), Pinter, Jozsef (2x), Richter, Christian (2x), Gligorić, Svetozar (1x), O'Kelly de Galway, Alberic (1x), Byrne, Ray (1x), Ostojic, Predrag (1x)

12…Na5 — 6.4% (10 parties)

Ambassadeurs : Schmid, Leo (1x), Alonso-Lej De Las Casas, Fernando (1x), Rivera, Daniel (1x), Abarca Rodriguez, Keisy Dariana (1x), Linert H (1x), Sprott, George R (1x), Mueller, Hans Georg (1x), Pletsch Andreas (1x)

12…Nb8 — 1.9% (3 parties)

Ambassadeurs : Shabalov, Alexander (1x), Stefansson, Halldor (1x), Grischuk, Alexander (1x), Carlsen, Magnus (1x), Schutte, John (1x), Ohlin, Jan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12…Bb7	12…Bd7	12…Na5	12…Nb8
1800-2200	15	60%	13%	20%	—
2200-2600	73	60%	29%	7%	3%
2600+	1	—	—	—	100%

Évolution par décennie (% des parties)

Décennie	N parties	12…Bb7	12…Bd7	12…Na5	12…Nb8
1960s	44	48%	50%	—	—
1970s	16	69%	19%	6%	—
1980s	19	47%	32%	21%	—
1990s	31	77%	13%	10%	—
2000s	14	57%	21%	7%	7%
2010s	24	67%	17%	4%	8%
2020s	9	67%	33%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12…Bb7	67%	67%	+0.0%
12…Bd7	17%	33%	▲ +16.7%
12…Na5	4%	0%	▼ -4.2%
12…Nb8	8%	0%	▼ -8.3%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 1 partie

Parties historiques

12…Bb7 — 60.5% (95 parties)

1963 — Sakharov, Yuri N vs Shianovsky, Vladislav I — 0-1 — Kiev UKR
1964 — Suetin, Alexey S vs Spassky, Boris V. — 1/2-1/2 — Moskou zt
1965 — Zakharov, Yuri Vasilievich vs Klovans, Janis — 1-0 — Omsk RUS
1965 — Vasiukov, Evgeni vs Augustin, Josef — 1/2-1/2 — Budapest HUN
1965 — Landbo Borresen, Johannes Severi vs Meeriste — 0-1 — ?

12…Bd7 — 28.7% (45 parties)

1965 — Fuchs, Reinhart vs Antoshin, Vladimir S — 1/2-1/2 — Leipzig GER
1965 — Lambshire, Michael V vs Carmel, Ephraim — 1/2-1/2 — Sinaia
1965 — Averbakh, Yuri L vs Matanovic, Aleksandar — 1-0 — Erevan ARM
1965 — Keres, Paul Petrovich vs Spassky, Boris Vasily — 1/2-1/2 — Riga LAT
1965 — Schmidt, Wlodzimierz vs Erenski, Przemyslaw — 0-1 — Poznan POL

12…Na5 — 6.4% (10 parties)

1973 — Schmid, Leo vs Alonso-Lej De Las Casas, Fernando — 1-0 — Mar del Plata open
1983 — Rivera, Daniel vs Abarca Rodriguez, Keisy Dariana — 1-0 — Uruguay
1983 — Kristiansen, Jens vs Brinck-Claussen, Bjorn — 0-1 — Copenhagen DEN
1984 — Linert H vs Sprott, George R — 1-0 — corr DDR
1988 — Mueller, Hans Georg vs Pletsch Andreas — 1-0 — St Ingbert

12…Nb8 — 1.9% (3 parties)

2004 — Shabalov, Alexander vs Stefansson, Halldor — 0-1 — Liepaya LAT
2012 — Grischuk, Alexander vs Carlsen, Magnus — 0-1 — Astana KAZ
2014 — Schutte, John vs Ohlin, Jan — 0-1 — FICGS

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