C90c — Spanish: Closed, Suetin Variation

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.a3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b4, case forte d5, Bb3 actif, paire de fous.
Faiblesses adverses : arriéré c7, Be7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé, arriérés b2, d2, 3 pièces non développées (B1, C1, A1).
Plans :
● Nc3 — Développer Nb1
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4
● Bc2 — Anticiper ...Na5

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte g4, case forte e5, paire de fous.
Faiblesses adverses : arriérés b2, d2, 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

C90c — Closed Suetin Variation

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.a3

Eval: [+0.12]

Les coups candidats

9…Na5 — 36.7% (102 parties)

Ambassadeurs : Loskutov, Oleg (7x), ? (6x), Suetin, Alexey S (6x), Nijboer, Friso (4x), Galdunts, Sergey (3x), German, Eugenio (2x), Shilov, Sergej (2x), Ivkov, Borislav (2x)

9…Be6 — 14.4% (40 parties)

Ambassadeurs : Suetin, Alexey S (6x), ? (3x), Keres, Paul (2x), Sanakoev, Grigory Konstant'ch (2x), Ivanchuk, Vasyl (2x), Nijboer, Friso (2x), Azaric, Slavko (2x), Melkumyan, Hrant (2x)

9…h6 — 9.7% (27 parties)

Ambassadeurs : Suetin, Alexey S (7x), Bronstein, David I (2x), Ivkov, Borislav (2x), Geller, Efim P. (2x), Muhutdinov, Marat (2x), Kharlov, Andrei (2x), Grischuk, Alexander (2x), Nielsen, Jorgen G. (1x)

9…Nb8 — 8.6% (24 parties)

Ambassadeurs : Loskutov, Oleg (2x), Cobb, James (2x), Gheorghiu, Florin (1x), Padevsky, Nikola (1x), Spassky, Boris V. (1x), Unzicker, Wolfgang (1x), Psakhis, Lev (1x), Uusi, Gunnar (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Na5	9…Be6	9…h6	9…Nb8
<1800	5	100%	—	—	—
1800-2200	37	38%	11%	8%	5%
2200-2600	150	35%	12%	11%	13%
2600+	18	22%	39%	6%	6%

Évolution par décennie (% des parties)

Décennie	N parties	9…Na5	9…Be6	9…h6	9…Nb8
1960s	28	25%	25%	18%	4%
1970s	16	19%	25%	6%	6%
1980s	34	35%	9%	12%	6%
1990s	51	35%	10%	12%	6%
2000s	79	41%	16%	9%	10%
2010s	65	43%	12%	6%	14%
2020s	5	40%	—	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Na5	43%	40%	▼ -3.1%
9…Be6	12%	0%	▼ -12.3%
9…h6	6%	0%	▼ -6.2%
9…Nb8	14%	0%	▼ -13.8%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 2 parties
Hou, Yifan — 1 partie
Ding, Liren — 1 partie

Parties historiques

9…Na5 — 36.7% (102 parties)

1965 — ? vs Gligorić, Svetozar — 1-0 — Titograd
1965 — Suetin, Alexey S vs Lengyel, Laszlo — 1-0 — Sarajevo BIH
1966 — ? vs Milic, Borislav — 1/2-1/2 — Belgrade SRB
1967 — Tikhomirov, Leonard vs Manteifel, Georgy — 1/2-1/2 — ?
1968 — German, Eugenio vs Clarke, Paul R H — 1/2-1/2 — Lugano olm

9…Be6 — 14.4% (40 parties)

1965 — Suetin, Alexey S vs Stein, Leon Rico — 1/2-1/2 — Tallinn ch-URS
1965 — Suetin, Alexey S vs Keres, Paul — 0-1 — Tallinn ch-URS
1965 — Suetin, Alexey S vs Keres, Paul — 0-1 — URS-ch Tallinn
1966 — Maric, Rudolf vs ? — 1/2-1/2 — Sombor
1968 — Nathan, Roger H vs Meakin, M — 1-0 — Swansea WLS

9…h6 — 9.7% (27 parties)

1965 — Suetin, Alexey S vs Nielsen, Jorgen G. — 1-0 — It, Copenhagen DEN
1965 — Suetin, Alexey S vs Nielsen, Jorgen Lovgren — 1-0 — Copenhagen DEN
1968 — Bronstein, David I vs Ivkov, Borislav — 1/2-1/2 — Sochi RUS
1968 — Ciocaltea, Victor vs Dunkelblum, Arthur — 1-0 — Wijk aan Zee II
1968 — Bronstein, David I vs Ivkov, Borislav — 1/2-1/2 — Sochi RUS

9…Nb8 — 8.6% (24 parties)

1964 — Gheorghiu, Florin vs Padevsky, Nikola — 1/2-1/2 — Tel Aviv ISR
1970 — Spassky, Boris V. vs Unzicker, Wolfgang — 1/2-1/2 — Siegen GER
1980 — Psakhis, Lev vs Uusi, Gunnar — 1-0 — Krasnojarsk
1981 — Benjamin Bedell, Jr. vs Reshevsky, Samuel — 0-1 — South Bend ch-USA - zt
1992 — Jonsson, Mikael vs Ornstein, Axel — 1/2-1/2 — Borlange SWE

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	● b2, ● d2	● c7
Chaînes	● b2→a3, b2→c3, d2→c3	● a6→b5, d6→e5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b4 (2v1), ● d5 (2v1)	● g4 (2v0), ● e5 (2v1)
Cases faibles	—	—
Centre	● d5 (2v1)	● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb3	● Bb3 Actif (mob. 7)
Be7		● Be7 Enfermé (mob. 0)
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, ● d2-d3	● …d6-d5

Partie
1964 Tel Aviv ISR – Round 9 – Gheorghiu, Florin – 1/2-1/2 – Padevsky, Nikola – G32 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 Nb8 10. d3 Bb7
1965 Copenhagen – Round 11 – Suetin, Alexey S – 1-0 – Nielsen, Jorgen Lovgren – G94 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. a3 h6 10. d4 Re8
1965 Copenhagen – Round 13 – Suetin, Alexey S – 1-0 – Enevoldsen, Jens – G107 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 Bg4 10. h3 Bh5
1965 It – Round 11 – ? – 1/2-1/2 – Sokolov, Vladimir – G12 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 d5 10. d4 Nxe4
1965 Sarajevo – Round 14 – Suetin, Alexey S – 1-0 – Lengyel, Laszlo – G91 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 Na5 10. Bc2 c5
1965 Tallinn ch-URS – Round 1 – Suetin, Alexey S – 0-1 – Keres, Paul – G117 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 Be6 10. d4 Bxb3
1965 Tallinn ch-URS – Round 1 – Suetin, Alexey S – 1/2-1/2 – Stein, Leon Rico – G115 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. c3 d6 9. a3 Be6 10. d4 Bxb3
1965 Titograd – Round 3 – ? – 1-0 – Gligorić, Svetozar – G25 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 Na5 10. Bc2 c5
1966 Asztalos Memorial – Round 9 – Bronstein, David I – 1-0 – Lilienthal, Andor – G8 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 a5 10. d4 a4
1966 Belgrade – Round 1 – ? – 1/2-1/2 – Milic, Borislav – G17 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 Na5 10. Bc2 c5
1967 Sweden (ch) – Round 8 – Jansson, Borje – 1/2-1/2 – Kinnmark, Ove – G40 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 Nd7 10. d4 Bf6
1967 USSR – Round 1 – Suetin, Alexey S – 1-0 – Lilienthal, Andor – G46 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. a3 d5 10. exd5 Nxd5
1968 URS-JUG – Round 4 – Bronstein, David I – 1/2-1/2 – Ivkov, Borislav – 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. a3 h6 10. d4 Re8
1968 Wijk aan Zee II – Round 14 – Ciocaltea, Victor – 1-0 – Dunkelblum, Arthur – G55 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. d4 Bg4
1969 Capablanca Memorial – Round 10 – Suetin, Alexey S – 0-1 – Gligorić, Svetozar – G78 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 Nd7 10. d4 Bf6
1970 Vinkovci – Round 5 – Minic, Dragoljub – 1-0 – Ledic, Tomislav – G99 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 Bg4 10. h3 Bd7
36. Olympiad 2004 – Round 9 – Ivanchuk, Vasyl – 1/2-1/2 – Akopian, Vladimir – G320 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 Na5 10. Bc2 c5
EU-Cup 24th 2008 – Round 3 – Ponomariov, Ruslan – 1-0 – Nyback, Tomi – 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. a3 Re8 10. Ng5 Rf8
FIDE GP 2002 – Round 4.2 – Short, Nigel D – 1/2-1/2 – Ivanchuk, Vasyl – G87 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a3 d6 9. c3 Be6 10. Bxe6 fxe6
Masters 2000 – Round 12 – Topalov, Veselin – 1/2-1/2 – Ivanchuk, Vasyl – 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. a3 d6 9. c3 Be6 10. d4 Bxb3
Moscow-4teams 1981 – Round ? – Suetin, Alexey S – 1/2-1/2 – Geller, Efim P – G34 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. a3 h6 10. d4 Bg4
Vugar Gashimov Mem 2018 – Round 7.1 – Navara, David – 0-1 – Ding, Liren – G31 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a3 d6 9. c3 Na5 10. Ba2 c5

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