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

Plans. Bc2 (Anticiper ...Na5 — 69 % des parties) ; Ba2 (Clouer f7, Fou actif (mobilité 6) — 26 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bb7 (Développer c8 — 60 % des parties) ; ...Bd7 (Fou actif (mobilité 5), Développer c8 — 30 % des parties) ; ...Na5 (Attaquer Bb3 — 6 % des parties).

Avantages

Faiblesses

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	● …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 (1963)

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

Les coups candidats

12…Bb7 — 59.5% (94 parties)

Ambassadeurs : Byrne, Robert E (3x), Matanovic, Aleksandar (3x), Weiss, Augustin (3x), Watzka, Horst (3x), Hecht, Hans-Joachim (2x), Unzicker, Ferdinand, Dr. (2x), Perkins, Alan H (2x), Sznapik, Aleksander (2x)

12…Bd7 — 29.7% (47 parties)

Ambassadeurs : Parma, Bruno (2x), Schmidt, Wlodzimierz (1x), Erenski, Przemyslaw (1x), Van Den Berg, John (1x), Szabo, Laszlo (1x), Litsberger, Rune (1x), Kinnmark, Ove (1x), Strand, Rune (1x)

12…Na5 — 6.3% (10 parties)

Ambassadeurs : Schmid, Lothar (1x), Casas Perea, Fernando (1x), Rivera, Daniel (1x), Rodriguez Vasquez, Christopher Ma (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, Hannes (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	1	100%	—	—	—
1800-2200	32	56%	28%	12%	—
2200-2600	72	60%	29%	7%	3%
2600+	1	—	—	—	100%

Évolution par décennie (% des parties)

Décennie	N parties	12…Bb7	12…Bd7	12…Na5	12…Nb8
1960s	43	47%	51%	—	—
1970s	16	69%	19%	6%	—
1980s	19	47%	32%	21%	—
1990s	31	77%	13%	10%	—
2000s	14	57%	21%	7%	7%
2010s	26	62%	23%	4%	8%
2020s	9	67%	33%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12…Bb7	62%	67%	▲ +5.1%
12…Bd7	23%	33%	▲ +10.3%
12…Na5	4%	0%	▼ -3.8%
12…Nb8	8%	0%	▼ -7.7%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 1 partie

Parties historiques

12…Bb7 — 59.5% (94 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 Weiss, Augustin — 1/2-1/2 — Budapest HUN
1965 — Landbo vs Meeriste — 0-1 — ?

12…Bd7 — 29.7% (47 parties)

1965 — Schmidt, Wlodzimierz vs Erenski, Przemyslaw — 0-1 — Poznan POL
1965 — Fuchs, Reinhart vs Abanin, Vladimir — 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

12…Na5 — 6.3% (10 parties)

1973 — Schmid, Lothar vs Casas Perea, Fernando — 1-0 — Mar del Plata open
1983 — Rivera, Daniel vs Rodriguez Vasquez, Christopher Ma — 1-0 — ch URU
1983 — Kristiansen, Jens vs Brinck-Claussen, Bjorn — 0-1 — Copenhagen DEN
1984 — Linert H vs Sprott, George R — 1-0 — ?
1988 — Mueller, Hans Georg vs Pletsch, Andreas — 1-0 — St Ingbert

12…Nb8 — 1.9% (3 parties)

2004 — Shabalov, Alexander vs Stefansson, Hannes — 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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