E55d — Nimzo-Indian: Main Line, Bronstein, 9.Qe2

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte b5, case forte e5, Bc4 actif, paire de fous, colonne c.
Faiblesses adverses : Bc8 enfermé.
Problèmes : Bc1 enfermé.
Plans :
● Bd2 — Développer Bc1
● h3 — Empêcher ...Bg4
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), avant-poste d5(C), paire de fous, colonne d.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bc8 enfermé.
Plans :
● b6+Bb7 — PRIORITÉ: libérer le Bc8 (b6+Bb7, ...Bg4, ...Bf5)
● ...Bg4 — Clouer Nf3
● ...e5 — Rupture
● ...Rd — Tour sur colonne d

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E55d — Main Line Bronstein

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2

Eval: [+0.16]

Les coups candidats

9…b6 — 62.4% (933 parties) →

Ambassadeurs : Knaak, Rainer (14x), Farago, Ivan (14x), Kholmov, Ratmir D (10x), Suba, Mihai (9x), Legemaat, Gert (9x), Estrin, Yakov (8x), Ribli, Zoltan (8x), Parma, Bruno (7x)

9…a6 — 20.1% (300 parties) →

Ambassadeurs : Donner, Jan-Hein (6x), Portisch, Ferenc (5x), Antoshin, Vladimir S (4x), Panno, Oscar (4x), Thorbergsson, Freysteinn (4x), Unzicker, Wolfgang (4x), Balashov, Yuri (4x), Boleslavsky, Isaac (3x)

9…cxd4 — 15.7% (235 parties)

Ambassadeurs : Kholmov, Ratmir D (4x), Panno, Oscar (3x), Kozma, Julius (3x), Portisch, Lajos (3x), Hnatovsky, Nicholas (3x), Trevis, Robert (3x), Todorovic, Nenad I (3x), Farago, Ivan (2x)

9…Qe7 — 1.3% (19 parties)

Ambassadeurs : Ilivitsky, Georgy A (1x), Lisitsin, Georgy (1x), Spassky, Boris Vasily (1x), Reshevsky, Samuel (1x), Weinstein, Raymond (1x), Byrne, Ray (1x), Zsinka, Laszlo (1x), Mencinger, Vojko (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…b6	9…a6	9…cxd4	9…Qe7
<1800	17	59%	12%	18%	6%
1800-2200	331	67%	13%	19%	1%
2200-2600	703	62%	19%	17%	1%
2600+	45	53%	22%	20%	4%

Évolution par décennie (% des parties)

Décennie	N parties	9…b6	9…a6	9…cxd4	9…Qe7
1940s	1	—	—	—	100%
1950s	47	49%	34%	13%	2%
1960s	121	39%	51%	8%	1%
1970s	91	43%	44%	13%	—
1980s	118	69%	20%	11%	—
1990s	140	67%	16%	15%	1%
2000s	472	70%	10%	19%	1%
2010s	471	64%	17%	17%	2%
2020s	34	56%	21%	21%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…b6	64%	56%	▼ -7.8%
9…a6	17%	21%	▲ +3.4%
9…cxd4	17%	21%	▲ +4.0%
9…Qe7	2%	3%	▲ +1.2%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 4 parties
Karpov, Aleksandr — 3 parties
Carlsen, Magnus — 3 parties
Kasparov, Garry — 2 parties
Karpov, Anatoly — 2 parties
Euwe, Max — 1 partie
Tal, Mikhail — 1 partie
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

9…b6 — 62.4% (933 parties)

1956 — Wade, Robert G vs Balanel, Ion — 1/2-1/2 — Marianske Lazne
1956 — Najdorf, Miguel vs Padevsky, Nikola — 1/2-1/2 — Moscow olm fin-A
1956 — Ivkov, Borislav vs Benko, Pal — 0-1 — Moscow RUS
1956 — Gligorić, Svetozar vs Unzicker, Wolfgang — 1-0 — Moscow RUS
1957 — Panno, Oscar vs Martinez, A. — 1-0 — Buenos Aires ARG

9…a6 — 20.1% (300 parties)

1955 — Udovcic, Mijo vs Karaklajic, Nikola — 1-0 — Zagreb CRO
1955 — Minev, Nikolay N vs Karaklajic, Nikola — 1/2-1/2 — Zagreb CRO
1956 — Middleton, Ian vs Karaklajic, Nikola — 0-1 — Moscow RUS
1957 — Geller, Efim P. vs Boleslavsky, Isaac — 1/2-1/2 — Kiev UKR
1957 — Turner, Abe J vs Bisguier, Arthur B — 1-0 — New York, NY USA

9…cxd4 — 15.7% (235 parties)

1956 — Mikenas, Vladas vs Khasin, Abram — 0-1 — Leningrad RUS
1957 — Panno, Oscar vs Albert, Horacio — 1-0 — ?
1957 — Panno, Oscar vs Albert Seguer, Eladio — 1-0 — Mar del Plata ARG
1957 — Averbach, J vs Estrin, Yakov — 1-0 — Moskvamasterskapet T
1957 — Bertholdt, Dieter vs Portisch, Lajos — 0-1 — Reykjavik ISL

9…Qe7 — 1.3% (19 parties)

1948 — Ilivitsky, Georgy A vs Lisitsin, Georgy — 1-0 — Moskou ch-URS
1958 — Weinstein, Raymond vs Byrne, Ray — 1/2-1/2 — New York, NY USA
1966 — Spassky, Boris Vasily vs Reshevsky, Samuel — 1/2-1/2 — Santa Monica, CA USA
1998 — Zsinka, Laszlo vs Mencinger, Vojko — 1/2-1/2 — Staatsliga B/Sus
1998 — Giorgadze, Giorgi Gel vs Timoscenko, Gennadij — 1-0 — Bad Woerishofen GER

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v1)	—
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 6)
Bb4		● Bb4 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e3-e4	● …e6-e5

Partie
1948 Moskou ch-URS – Round 7 – Ilivitsky, Georgy A – 1-0 – Lisitsin, Georgy – G65 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 dxc4 7. Bxc4 c5 8. O-O Nbd7 9. Qe2 Qe7 10. e4 cxd4
1956 URS Ch sf – Round ? – Mikenas, Vladas – 0-1 – Khasin, Abram – G44 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 Nb6
1957 Mar del Plata – Round 5 – Panno, Oscar – 1-0 – Albert Seguer, Eladio – G51 1. c4 e6 2. Nf3 Nf6 3. Nc3 d5 4. d4 Bb4 5. e3 O-O 6. Bd3 dxc4 7. Bxc4 c5 8. O-O Nbd7 9. Qe2 cxd4 10. exd4 a6
1957 WchT U26 04th – Round 5.2 – Bertholdt, Dieter – 0-1 – Portisch, Lajos – G59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 b6
1958 New York ch-USA – Round 2 – Weinstein, Raymond – 1/2-1/2 – Byrne, Ray – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 Qe7 10. a3 Ba5
1963 CSR Ch – Round 4 – Smejkal, Jan – 1-0 – Hýbl, Jaroslav – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 Nb6
1963 Sochi – Round 3 – Kozma, Julius – 1/2-1/2 – Kholmov, Ratmir D – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 Nb6
1965 Hungary – Round 1 – Farago, Ivan – 0-1 – Polgar, Botond Istvan – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 b6
1967 Debrecen – Round 1 – Kozma, Julius – 1-0 – Cs. Kovacs, Laszlo – G1 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 Bxc3
1967 URS Team Ch – Round 1 – Zhukhovitsky, Samuel – 1-0 – Roizman, Abram Y – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. Qe2 dxc4 9. Bxc4 Qc7 10. Nb5 Qc6
1969 Luhacovice – Round 7 – Kozma, Julius – 1/2-1/2 – Kolarov, Atanas S. – G60 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O Nbd7 9. Qe2 cxd4 10. exd4 Nb6
1969 WchT U26 fin-B 16th – Round 4.3 – Farago, Ivan – 1-0 – Nordstrom, Felix – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 b6
1972 San Antonio – Round 1 – Portisch, Lajos – 1-0 – Karpov, Anatoly – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qe2 cxd4 10. exd4 b6

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