Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d2→c3, g2→h3	● a6→b5, d6→e5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (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. 6)
Be7		● Be7 Ok (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-d4	● …d6-d5

C92a — Spanish: Closed, 9.h3

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 ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. d4 (Occuper le centre — 53 % des parties) ; Bc2 (Anticiper ...Na5 — 43 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Na5 (Attaquer Bb3 — 43 % des parties) ; ...Nb8 (23 % des parties) ; ...Bb7 (Développer c8 — 21 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
11. London Classic 2019 – Round 2.6 – Vachier-Lagrave, Maxime – 1-0 – Ding, Liren – G30 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 Re8 10. a4 Bb7
1902 Moscow blindfold sim – Round 15 – Pillsbury, Harry – 0-1 – Seleznev, Paul – 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 Ne8 10. d4 Bf6
1910 BCF Ch 7th – Round 3 – Wainwright snr, George Edward – 0-1 – Atkins, Henry Ernest – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 d6 7. c3 O-O 8. h3 b5 9. Bb3 Kh8 10. a4 Rb8
1959 Candidats Tournament – Round 9 – Keres, Paul – 1/2-1/2 – Smyslov, Vladimir – 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. h3 Qd7 10. d4 Re8
1960 Buenos Aires – Round 13 – Gligorić, Svetozar – 1-0 – Wade, Robert G – G142 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 Qd7 10. d4 Re8
1960 Buenos Aires – Round 18 – Fischer, Robert J – 1-0 – Wade, Robert G – G188 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 Qd7 10. d4 Re8
1960 Leningrad ch-URS – Round 6 – Bronstein, David I – 1/2-1/2 – Smyslov, Vladimir – G56 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 Qd7 10. d3 Bb7
1960 UKR Ch – Round 4 – Olifer A – 1/2-1/2 – Volchok, Alexandr – G26 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 Qd7 10. d4 Re8
1961 Bucharest GMT 5th – Round 11 – Stein, Leonid – 1-0 – Gheorghiu, Florin – G44 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 Qd7 10. d4 Re8
1962 Kiev (Ukraine) – Round 6 – Zurakhov, Vladlen Y – 1-0 – Kostiuchenko, Alexander – 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 d5 10. exd5 Nxd5
1965 Capablanca Memorial – Round 8 – Tringov, Georgi P – 1/2-1/2 – Robatsch, Karl – G81 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 d5 10. exd5 Nxd5
1969 USSR – Round 1 – Schmidt, Waldemar – 1/2-1/2 – Zaitsev, Igor – G38 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 Qd7 10. d4 Re8
1971 Hoogovens – Round 1 – Zuidema, Coen – 1/2-1/2 – Kostro, Jerzy – G178 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 Qd7 10. d3 Na5
1971 Moscow – Round ? – Balashov, Yuri S – 0-1 – Zaitsev, Aleksandr – G195 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 Qd7 10. d4 Re8
Biel Interzonal 1993 – Round 13 – Ivanchuk, Vasyl – 1-0 – Piket, Jeroen – G296 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 Kh8 10. d4 exd4
FIDE Grand Swiss 2025 – Round 3 – Erdogmus Yagiz Kaan – 1/2-1/2 – Keymer Vincent – G121 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 Bd7 10. d4 a5
FIDE World Cup 2025 – Round R2 Classical 2 – Gledura Benjamin – 1-0 – Bassem Amin – G337 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a3 O-O 9. Nc3 Nb8 10. h3 Nbd7
FIDE-Wch k.o. 1997 – Round 1.1 – Kotronias, Vasilios – 1/2-1/2 – Milov, Vadim – 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 Qd7 10. d4 Re8
World Blitz 2015 – Round 6.41 – Grischuk, Alexander – 1/2-1/2 – Lagno, Kateryna – G373 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 Re8 10. d3 Na5
World Blitz 2023 – Round 11.3 – Kosakowski, Jakub – 0-1 – Van Foreest, Jorden – G644 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 d5 10. exd5 Nxd5
XX Ciudad de Leon 2007 – Round 2.1 – Topalov, Veselin – 1/2-1/2 – Anand, Viswanathan – 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. h3 d6 9. c3 Rb8 10. d3 Na5

C92a — Closed (1902)

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

Les coups candidats

9…Na5 — 42.6% (33224 parties) →

Ambassadeurs : Zielinski, Sergej (284x), Romanishin, Oleg M (170x), Szabo, Vilmos (119x), Ivkov, Borislav (90x), Klovans, Janis (70x), Matanovic, Aleksandar (68x), Sherwood, Russell (66x), Tal, Mikhail (65x)

9…Nb8 — 22.7% (17696 parties) →

Ambassadeurs : ? (52x), Matanovic, Aleksandar (48x), Spassky, Boris Vasily (48x), Johansen, Anders S. (47x), Sasikiran, Krishnan (47x), Beliavsky, Alexander G (46x), Klewe, Wolfgang (44x), Sherwood, Russell (43x)

9…Bb7 — 20.8% (16205 parties) →

Ambassadeurs : Langer, Raimund (183x), Karpov, Anatoly (86x), Schwetlick, Thomas (64x), Kovacs, Arthur Dr. (53x), Klovans, Janis (46x), Beliavsky, Alexander G (45x), Adeyemi, Phebe Adesinuola (45x), Ivanov, Alexander (43x)

9…h6 — 4.1% (3181 parties) →

Ambassadeurs : Flecher, Joseph (92x), Geller, Efim P. (46x), Gligorić, Svetozar (40x), Matanovic, Aleksandar (34x), De Coverly, Roger D (28x), ? (24x), Parma, Bruno (23x), Tal, Mikhail (20x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Na5	9…Nb8	9…Bb7	9…h6
<1800	3644	48%	18%	22%	4%
1800-2200	26528	47%	22%	21%	3%
2200-2600	32954	37%	26%	22%	3%
2600+	2135	25%	31%	22%	2%

Évolution par décennie (% des parties)

Décennie	N parties	9…Na5	9…Nb8	9…Bb7	9…h6
1950s	1064	74%	7%	3%	0%
1960s	2699	52%	16%	2%	18%
1970s	2842	40%	31%	6%	15%
1980s	4247	36%	19%	26%	5%
1990s	8672	37%	14%	26%	6%
2000s	19870	52%	15%	21%	3%
2010s	31454	41%	29%	21%	2%
2020s	7110	29%	32%	26%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Na5	41%	29%	▼ -11.3%
9…Nb8	29%	32%	▲ +3.3%
9…Bb7	21%	26%	▲ +4.5%
9…h6	2%	3%	+0.3%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Botvinnik, Mikhail — 10 parties
Smyslov, Vladimir — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Hou, Yifan — 10 parties
Carlsen, Magnus — 10 parties
Ding, Liren — 10 parties
Karpov, Aleksandr — 5 parties
Lasker, Emanuel — 1 partie
Fischer, Robert James — 1 partie
Smyslov, Vassily — 1 partie
Gukesh D — 1 partie

Parties historiques

9…Na5 — 42.6% (33224 parties)

1950 — Geller, Efim P. vs Panov, Vasily — 1-0 — Kiev UKR
1950 — Van't Veer, P. vs Purdy, Cecil J S — 0-1 — corr Wch1
1950 — Aronin, Lev vs Alexander Tadala — 1-0 — Moskou ch-URS
1950 — Aronin, Lev vs Averbakh, Yuri L — 1/2-1/2 — Moskou ch-URS
1950 — Malchev, Andrej vs Tsvetkov, Alexandar K — 0-1 — Sofia BUL

9…Nb8 — 22.7% (17696 parties)

1954 — Aronson, Lev vs Furman, Semyon — 1/2-1/2 — URS-ch sf Leningrad RUS
1954 — Bannik, Anatolij vs Koval, Valentin — 0-1 — Ukraine
1954 — Zagorovsky, Vladimir vs Borisenko, Georgy K — 0-1 — Gorki ch22-SU sf
1954 — Rudenko, Ludmila vs Borisenko-Belova, Valentina — 1-0 — Riga LAT
1955 — Averbakh, Yuri L vs Taimanov, Mark — 1/2-1/2 — Voroshilovgrad

9…Bb7 — 20.8% (16205 parties)

1952 — Pachman, Ludek vs Geller, Efim P. — 1/2-1/2 — Saltsjobaden SWE
1953 — Byvshev, Vasily vs Bonch-Osmolovsky, Mikhail — 1-0 — Leningrad RUS
1954 — Byvshev, Vasily vs Lilienthal, Andor — 1-0 — Kiev ch-URS
1955 — Efimov, Kondrat vs Klaman, Konstantin Mikhailovich — 0-1 — Leningrad RUS
1955 — Bogdanovic, Rajko vs Persitz, Raaphi — 1-0 — Ljubljana

9…h6 — 4.1% (3181 parties)

1954 — Yudovich, Mikhail M vs Zagorovsky, Vladimir — 1-0 — URS-ch sf Gorky
1954 — Suetin, Alexey S vs Averbakh, Yuri L — 1-0 — Riga LAT
1958 — Bhend, Edwin vs Weltjens, Leon — 1-0 — Munich GER
1960 — Prahov, Valentin vs Kolarov, Atanas S. — 1/2-1/2 — ?
1961 — Geller, Efim P. vs Tal, Mikhail — 1/2-1/2 — Moscow USSR Team ch

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