Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● f7→e6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v1)	—
Cases faibles	—	—
Centre	● d4 (3v1), ● e5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bc4	● Bc4 Actif (mob. 7)
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	mobile
Ruptures	● d4-d5	● …e6-e5

E55a — Nimzo-Indian: Main Line, Bronstein Variation

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 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture d4-d5).

Atouts. Les Blancs s'appuient sur un contrôle dominant de b5 et e5, un fou actif en c4 et la colonne semi-ouverte c.

Côté adverse. Un mauvais fou en c8.

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

Plans. Qe2 (57 % des parties) ; a3 (Préparer expansion aile dame — 22 % des parties) ; Bd3 (Fou actif (mobilité 10) — 8 % des parties) ; Qb3 (Contrôle diagonale b3-g8 — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu sur l'aile dame (...b6 dans 38 % des parties).

Atouts. Les Noirs s'appuient sur une majorité de pions à l'aile dame (3 contre 2), un avant-poste en d5 et la colonne semi-ouverte d.

Côté adverse. Un mauvais fou en c1.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...b6 (Préparer le fianchetto — 38 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 28 % des parties) ; ...a6 (Préparer expansion aile dame — 26 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1956 Alekhine Memorial – Round ? – Gligorić, Svetozar – 1/2-1/2 – Smyslov, Vasily – G92 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. Bd3 b6 10. Qe2 Bb7
1956 Belgrade – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Karaklajic, Nikola – G2 1. c4 Nf6 2. Nf3 e6 3. Nc3 d5 4. d4 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Bd3 b6 10. a3 cxd4
1956 Candidats Tournament – Round 7 – Bronstein, David I – 1/2-1/2 – Smyslov, Vladimir – G30 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. Bb3 b6 10. a3 cxd4
1956 GDR Ch – Round 13 – Dittmann, Sieghart – 1/2-1/2 – Bertholdt, Dieter – G17 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. Qd3 a6 10. a4 cxd4
1956 GDR Ch Leipzig GER – Round 1 – Dittmann, Sieghart – 0-1 – Fuchs, Reinhart – G1 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. Qb3 a6 10. a3 Bxc3
1956 Olympiad Moscow RUS – Round 7 – Bronstein, David I – 1-0 – Jezek, Jaroslav – G26 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. Qb3 Qe7 10. Rd1 cxd4
1956 YUG-GER – Round 2.1 – Gligoric, Svetozar – 1/2-1/2 – Unzicker, Wolfgang – G9 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. Bd3 b6 10. Qe2 Bb7
1957 Dallas – Round 1 – Gligorić, Svetozar – 1/2-1/2 – Reshevsky, Samuel – G9 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. Bd3 b6 10. Qe2 Bb7
1957 Minsk zt – Round 5 – Suetin, Alexey S – 1-0 – Luik, Helmuth – G35 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Qd3 b6 10. a3 cxd4
1957 Minsk zt – Round 6 – Uusi, Gunnar – 1-0 – Roizman, Abram Y – G40 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qb3 b6 10. Rd1 Bb7
1957 Moskou ch-URS – Round 2 – Furman, Slavomir – 1-0 – Stolyar, E. – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qd3 Qe7 10. Rd1 a6
1957 Moskou ch-URS – Round 8 – Furman, Slavomir – 1/2-1/2 – Kholmov, Ratmir D – G81 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. Qd3 a6 10. a4 Re8
1957 Sofia zt Sofia BUL – Round 1 – Fuchs, Reinhart – 1/2-1/2 – Karaklajic, Nikola – G24 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. Qb3 Bxc3 10. bxc3 b6
1957 Sombor – Round 14 – Gligorić, Svetozar – 1-0 – Karaklajic, Nikola – G136 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. Bd3 b6 10. Qe2 Bb7
1958 JUG-13ch – Round 12 – Gligorić, Svetozar – 1/2-1/2 – Puc, Stojan – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 d5 6. Bd3 O-O 7. O-O dxc4 8. Bxc4 Nbd7 9. Bd3 a6 10. a3 Ba5
1958 Munich olm fin-B – Round 6 – Johansson, Ingemar 1966 – 1-0 – Sliwa, Bogdan – G24 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Bd3 b6 10. Qe2 Bb7
1958 Portoroz Interzonal – Round 8 – Bronstein, David I – 1/2-1/2 – Averbakh, Yuri L – G74 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. Bd2 cxd4 10. exd4 b6
1958 Riga ch-URS – Round 1 – Borisenko, Georgy K – 1/2-1/2 – Gipslis, Aivars – G30 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qd3 a6 10. a3 cxd4
1959 Marianske Lazne – Round 3 – Gromek, Jozef – 0-1 – Rabar, Braslav – G20 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. Re1 a6 10. Bd3 Re8
1959 URS Team Ch – Round ? – Uusi, Gunnar – 0-1 – Gipslis, Aivars – G103 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 O-O 8. O-O Nbd7 9. Qb3 b6 10. Rd1 Bb7
1960 Baltic Nations – Round 11 – Taimanov, Mark E – 1/2-1/2 – Gipslis, Aivars – G26 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. Bd3 a6 10. a4 b6
1960 Buenos Aires – Round 11 – Taimanov, Mark E – 1-0 – Eliskases, Erich – G117 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. Qd3 a6 10. a4 cxd4
1961 Baku ch-URS – Round 4 – Taimanov, Mark E – 1/2-1/2 – Gipslis, Aivars – G42 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. Qd3 a6 10. a4 b6
1961 Bled – Round 4 – Geller, Efim P – 1/2-1/2 – Tal, Mikhail – G40 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. Qd3 b6 10. d5 Bxc3
1961 Moskou – Round 1 – Kortchnoi, V. – 1-0 – Polugaevsky, L. – G37 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. Qd3 Qe7 10. a3 Ba5
1962 Erevan ch-URS – Round 1 – Korelov, Alexander P – 1/2-1/2 – Kots, Yuri I – G37 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. Qd3 a6 10. a4 Qe7
1962 Mar del Plata – Round 2 – Najdorf, Miguel – 1/2-1/2 – Bielicki, Carlos – G26 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. Qb3 Bxc3 10. bxc3 b6
1962 URS Team Ch – Round 1 – Roizman, Michael – 1/2-1/2 – Antoshin, Vladimir S – G37 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. Qb3 a6 10. a4 Ba5
1962 Vrnjacka Banja – Round 5 – Gligorić, Svetozar – 1/2-1/2 – Matanovic, Aleksandar – G53 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. Qd3 Nb6 10. Bb3 Bd7
1963 Budapest ch-HUN – Round 1 – Varnusz, Egon – 1/2-1/2 – Kovacs H., Zoltan – G73 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. Qd3 b6 10. a3 cxd4
1963 FRG Ch – Round 12 – Lohse, Steffen – 1/2-1/2 – Unzicker, Wolfgang – G32 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. Qb3 a6 10. a4 b6
1963 Hoogovens – Round 8 – Bronstein, David I – 1/2-1/2 – Parma, Bruno – G67 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. e3 O-O 6. Be2 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Ne5 a6 10. Bb3 Qc7
1964 Hoogovens – Round 1 – Van den Berg, Cees – 0-1 – Keres, Paul – G15 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. O-O dxc4 8. Bxc4 Nbd7 9. Bd3 Qe7 10. Ne4 Nxe4
1964 Leningrad – Round 1 – Geller, Efim P – 1/2-1/2 – Parma, Bruno – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Be2 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Bd2 b6 10. a3 cxd4
1965 Budapest HUN – Round 14 – Krogius, Nikolai V – 1/2-1/2 – Polugaevsky, Lev – G34 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. Qd3 Qe7 10. a3 Ba5
1965 Hoogovens – Round 10 – Van den Berg, Cees – 1/2-1/2 – Matanovic, Anto – G74 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Bd3 b6 10. a3 cxd4
1965 Hoogovens – Round 9 – Bagirov, Vladimir – 1/2-1/2 – Geller, Efim P – G69 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Nf3 d5 6. Be2 dxc4 7. Bxc4 c5 8. O-O Nbd7 9. Qb3 a6 10. a4 Qe7
1965 Novi Sad – Round 16 – Damjanovic, Marko – 1/2-1/2 – Ankerst, Milka – G130 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. Bd3 b6 10. a3 cxd4
1965 Zagreb – Round 11 – Petrosian, Tigran A. – 1/2-1/2 – Ivkov, Borislav – G110 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Be2 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qb3 a6 10. a4 b6
1966 Moscow Training – Round 10 – Petrosian, Tigran A. – 1-0 – Simagin, Vladimir – G21 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. Qb3 a6 10. a4 b6
1966 Santa Monica – Round 11 – Reshevsky, Samuel – 1/2-1/2 – Petrosian, Tigran A. – G46 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. Bd3 b6 10. a3 cxd4
1967 Moscow – Round 1 – Pachman, Ludek – 0-1 – Najdorf, Miguel – G39 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O dxc4 8. Bxc4 Nbd7 9. Qb3 a6 10. a3 Ba5
1970 Belgrade URS-World – Round 2.3 – Portisch, Lajos – 1/2-1/2 – Korchnoi, Viktor – G8 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. Qb3 a6 10. a4 Ba5
EU Team Ch 1980 – Round 6 – Gligoric, Svetozar – 1/2-1/2 – Ribli, Zoltan – G15 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. Bd3 b6 10. Re1 Bb7
Manila Interzonal 1990 – Round 12 – Gulko, Boris – 1-0 – Lobron, Eric – G193 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. Bd3 b6 10. a3 cxd4
World Blitz 2007 – Round 11 – Ponomariov, Ruslan – 0-1 – Leko, Peter – G102 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. Qb3 a6 10. a4 Qe7
World Cup 1988 – Round 1 – Beliavsky, Alexander G – 1/2-1/2 – Ribli, Zoltan – G19 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. Qb3 a6 10. a4 Qe7

E55a — Main Line, Bronstein Variation (1956)

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

Les coups candidats

9.Qe2 — 54.2% (1494 parties) →

Ambassadeurs : Knaak, Rainer (15x), Kholmov, Ratmir D (15x), Portisch, Lajos (14x), Bakheet Farag (14x), Donner, Jan-Hein (13x), Unzicker, Ferdinand, Dr. (11x), Gligoric, Sofija (10x), Estrin, Yakov (9x)

9.a3 — 31.2% (860 parties) →

Ambassadeurs : Kholmov, Ratmir D (8x), Adams, Michael (6x), Hentze, Holger (6x), Almasi, Zoltan (6x), Gipslis, Aivars (5x), Lukacs, Peter (5x), Tal, Mikhail (4x), Sapi, Laszlo (4x)

9.Qb3 — 4.5% (124 parties)

Ambassadeurs : Beliavsky, Alexander G (6x), Korchnoi, Viktor (5x), Portisch, Lajos (4x), Peralta, Fernando (4x), Uusi, Gunnar (3x), Aleksandrov, Viktor A. (3x), Miguel, Nahuel (2x), Petrosian, Tigran V. (2x)

9.Bd3 — 3.4% (94 parties)

Ambassadeurs : Gligoric, Sofija (9x), Gligoric, Svetozar (6x), Donner, Jan-Hein (5x), Bakheet Farag (5x), Rapaka Samuel Paul (3x), Van den Berg, Carel B (3x), Gligorić, Svetozar (3x), Renet, Olivier (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.Qe2	9.a3	9.Qb3	9.Bd3
<1800	101	57%	32%	2%	3%
1800-2200	698	59%	29%	3%	3%
2200-2600	1219	52%	36%	4%	3%
2600+	122	34%	45%	14%	1%

Évolution par décennie (% des parties)

Décennie	N parties	9.Qe2	9.a3	9.Qb3	9.Bd3
1950s	108	43%	29%	6%	8%
1960s	201	59%	19%	5%	5%
1970s	177	51%	24%	7%	10%
1980s	176	68%	16%	3%	9%
1990s	241	58%	23%	5%	8%
2000s	865	54%	30%	6%	2%
2010s	902	52%	40%	2%	1%
2020s	85	42%	51%	1%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.Qe2	52%	42%	▼ -10.1%
9.a3	40%	51%	▲ +10.9%
9.Qb3	2%	1%	▼ -1.0%
9.Bd3	1%	1%	+0.4%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Carlsen, Magnus — 6 parties
Karpov, Anatoly — 5 parties
Anand, Viswanathan — 5 parties
Kasparov, Garry — 3 parties
Kramnik, Vladimir — 3 parties
Smyslov, Vladimir — 2 parties
Botvinnik, Mikhail — 1 partie

Parties historiques

9.Qe2 — 54.2% (1494 parties)

1955 — Minev, Nikolay N vs Aadhitha Karikalan — 1/2-1/2 — Zagreb CRO
1955 — Udovcic, Mijo vs Aadhitha Karikalan — 1-0 — Zagreb CRO
1956 — Middleton, Ian vs Aadhitha Karikalan — 0-1 — Moscow RUS
1956 — Mikenas, Vladas vs Khasin, Abram — 0-1 — Leningrad RUS
1956 — Wade, Robert G vs Balanel, Ion — 1/2-1/2 — Marianske Lazne

9.a3 — 31.2% (860 parties)

1956 — Pla, Orlando vs Weichselbaumer, Ernst — 1/2-1/2 — Moskou olm
1956 — Petrosian, Tigran V. vs Djurasevic, Bozidar — 1/2-1/2 — Belgrade SRB
1956 — Smyslov, Vasily vs Aadhitha Karikalan — 1/2-1/2 — Belgrade URS vs YUG
1956 — Ilivitsky, Georgy A vs Pachman, Ludek — 1/2-1/2 — Prague CZE
1956 — Miguel, Nahuel vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Moskou olm

9.Qb3 — 4.5% (124 parties)

1956 — Dittmann, Benno vs Fuchs, Alexander — 0-1 — DDR ch
1956 — Bronstein, David I vs Jezek, Jaroslav — 1-0 — Moskou olm
1957 — Fuchs, Reinhart vs Aadhitha Karikalan — 1/2-1/2 — Sofia zt Sofia BUL
1957 — Uusi, Gunnar vs Roizman, Michael — 1-0 — Minsk zt
1958 — Uusi, Gunnar vs Pitksaar, A. — 1-0 — Tallinn EST

9.Bd3 — 3.4% (94 parties)

1956 — Smyslov, Vasily vs Aadhitha Karikalan — 1/2-1/2 — Belgrade SRB
1956 — Addison, William Grady vs Ramirez, Gilbert — 0-1 — Barbera Santa CA
1956 — Gligoric, Svetozar vs Smyslov, Vasily — 1/2-1/2 — Moscow RUS
1956 — Gligoric, Svetozar vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Bled SLO
1957 — Gligoric, Sofija vs Rapaka Samuel Paul — 1/2-1/2 — Dallas, TX USA

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