B52 — Sicilian Defense: Moscow Variation, Main Line

1. e4 c5 2. Nf3 d6 3. Bb5 Bd7 4. Bxd7 Qxd7 5. O ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Attaque sur le roi adverse resté au centre.

Côté adverse. Le fou enfermé en f8 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. c3 (Préparer d4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e5.

Atouts. Les Noirs s'appuient sur les cases fortes b4, d4 et e5 et un avant-poste en e5.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier g8, le fou f8 et les tours a8 et h8).

Plans. ...Nf6 (Développer Ng8) ; ...c4 (Rupture) ; ...d5 (Rupture) ; ...e6 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Base Masters : Blancs 26.3%, Nulles 53.9%, Noirs 19.8%.

Coups candidats

auto

Analyse coup par coup — 8 demi-coups commentés

1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3.
1…c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5.
2.Nf3 Contrôle c4, d4, d5, e5.
2…d6 Avancée centrale — contrôle c5, e5. Prépare e5, Nd7.
3.Bb5+ Contrôle c4, d4, d5, e5. Échec !
3…Bd7 Contrôle d4, e5, f5.
4.Bxd7+ Capture Fou en d7. Échec !
4…Qxd7 Capture Fou en d7.

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● d6→c5, e7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● b4 (2v0), ● d4 (2v1), ● e5 (2v1)
Cases faibles	—	—
Centre	● d5 (1v0)	● d4 (2v1), ● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	Non	Non
Non développées	3 (● b1, ● c1, ● a1)	4 (● g8, ● f8, ● a8, ● h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Au centre !
Droits de roque	—	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c2-c3, ● d2-d3, ● e4-e5	● …c5-c4, ● …d6-d5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
1948 Bad Gastein – Round 4 – Rossolimo, Nicolas – 1-0 – Mueller von Blumencron, Heiko – G29 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 e6 7. Rd1 d5 8. exd5 Qxd5 9. Nc3 Qd7 10. d4 Nxd4
1950 Dubrovnik olm – Round 15 – Book, Eero – 0-1 – Gligorić, Svetozar – G228 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. b3 Nf6 7. Re1 g6 8. Bb2 Bg7 9. c4 e5 10. Nc3 O-O
1950 Dubrovnik olm – Round 9 – Canal, Esteban – 1/2-1/2 – Mastichiadis, Fotis – G128 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Bg7 10. Nc3 O-O
1950 Mar del Plata – Round 5 – Rossolimo, Nicolas – 1/2-1/2 – Pilnik, Herman – G41 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 Nf6 7. Rd1 e6 8. d4 cxd4 9. Nxd4 Be7 10. c4 O-O
1952 Havana – Round 3 – Zavaleta Pomar, Oscar Ricardo – 0-1 – Eliskases, Erich – G52 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Nxd4 10. Qxd4 Bg7
1952 Helsinki olm – Round 1 – Pfeiffer, Gerhard – 1/2-1/2 – Lundin, Erik – G107 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 g6 7. Re1 Bg7 8. c3 e5 9. Be3 Nf6 10. Nbd2 O-O
1952 JUG Ch – Round 9 – Djurasevic, Bozidar – 0-1 – Rabar, Braslav – G55 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Nc3 g6 9. Nd5 Bg7 10. Nxc6 bxc6
1953 CSR Ch Prague – Round 5 – Alster, Ladislav – 1-0 – Sajtar, Jaroslav – G29 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 e6 9. c4 Be7 10. Nc3 O-O
1953 Venice – Round 2 – Dunkelblum, Arthur – 1/2-1/2 – Paoli, Enrico – G9 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 Nf6 7. Rd1 Rc8 8. d4 cxd4 9. Nxd4 e6 10. Nf3 Qc7
1954 Belgrade – Round 16 – Porrecca, Giorgio – 1/2-1/2 – Trifunovic, Petar – G132 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Bg7 10. Nc3 Nxd4
1954 Prague zt – Round 18 – Koskinen, Hannu E. – 1/2-1/2 – Sajtar, Jaroslav – G104 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 Nf6 7. c3 e6 8. d4 cxd4 9. cxd4 d5 10. e5 Ne4 1/2-1/2
1955 Ljubljana – Round 8 – Puc, Stojan – 1/2-1/2 – Bogdanovic, Rajko – G65 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. b3 Bg7 10. Bb2 O-O
1955 Moskou ch-URS – Round 1 – Kan, Ilya A – 1/2-1/2 – Ilivitsky, Georgy A – G75 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Nxd4 10. Qxd4 Bg7
1956 URS Ch, semi final – Round 3 – Yukhtman, Yakov – 1/2-1/2 – Petrosian, Tigran A. – G51 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. b3 Nf6 7. Re1 g6 8. d4 cxd4 9. Bb2 Bg7 10. Nxd4 Nh5
1957 Sombor – Round 9 – Marić, Rudolf – 1/2-1/2 – Bogdanovic, Rajko – G95 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Bg7 10. Nc3 Nxd4
1958 Munich olm fin-A – Round 6 – Llado, Jaime – 1/2-1/2 – Petrosian, Tigran V – G34 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. b3 Nf6 7. Re1 g6 8. Bb2 Bg7 9. d4 cxd4 10. Nxd4 Nh5
1959 Tbilisi ch-URS – Round 10 – Geller, Efim P – 1/2-1/2 – Vasiukov, Evgeni – G83 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. b4 Nxb4 7. c3 Nd3 8. Na3 e6 9. Qe2 Nxc1 10. Raxc1 Be7
1959 UKR Ch – Round 10 – Poliak, Evsey – 0-1 – Nikolaevsky, Yuri V – G74 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Bg7 10. Nc3 O-O
1960 Mar del Plata – Round 10 – Redolfi, Argentino Rodolfo – 0-1 – Fischer, Robert J – G81 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 e6 7. Nbd2 g6 8. a4 Bg7 9. Nc4 Nge7 10. Bf4 e5
1960 Mar del Plata – Round 7 – Fischer, Robert J – 1-0 – Olafsson, Fridrik – G63 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 g6 7. c3 Bg7 8. Rd1 e5 9. Na3 Nge7 10. d4 cxd4
1960 Nimzowitsch Memorial – Round ? – Barendregt, Johan – 1/2-1/2 – Pietzsch, Wolfgang – G14 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Bg7 10. Nc3 O-O
1961 Marianske Lazne zt – Round 5 – Barendregt, Johan – 1/2-1/2 – Ghitescu, Theodor – G36 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. b3 Nf6 7. Re1 e6 8. Bb2 Be7 9. d4 cxd4 10. Nxd4 Nxd4
1961 Vrnjacka Banja ct women – Round 5 – Gresser, Gisela Kahn – 0-1 – Handsuren, Sandagdorj – G23 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Bg7 10. Nc2 O-O
1962 Erevan ch-URS – Round 1 – Kholmov, Ratmir D – 1-0 – Stein, Leon Rico – G69 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Nc3 g6 9. Nf3 Bg7 10. Bf4 O-O
1962 It IIa Beverwijk NED – Round 9 – Barendregt, Johan – 1/2-1/2 – Parma, Bruno – G19 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. b3 Nxd4 10. Qxd4 Bg7
1962 New York ch-USA – Round 2 – Rossolimo, Nicolas – 1/2-1/2 – Fischer, Raphael – G11 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 g6 7. c3 Bg7 8. Rd1 e5 9. d4 exd4 10. cxd4 Nxd4
1962 Torremolinos zt – Round 1 – Llado Lumbera, Jaime – 0-1 – O'Kelly, Albéric de Galway – G22 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. b3 Nf6 7. Re1 g6 8. Bb2 Bg7 9. d4 cxd4 10. Nxd4 O-O
1963 Sverdlovsk – Round ? – Goldenov, Boris P – 0-1 – Stein, Leonid – G10 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. Nc3 Bg7 10. Bg5 h6
1964 Mar del Plata – Round 5 – Luckis, Marcos – 0-1 – Foguelman, Alberto – G17 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 Nf6 7. Bg5 e6 8. Nbd2 Be7 9. Re1 O-O 10. c3 Rfc8
1964 UKR Ch – Round 13 – Levitsky, Anatoly – 1/2-1/2 – Pelts, Roman – G81 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. b3 Nxd4 10. Qxd4 Bg7
1964 WchT U26 11. fin-B – Round 9.2 – Havansi, Erkki E.T. – 1/2-1/2 – Pavlov, Mircea-Sergiu-Aurelian – G42 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 g6 9. c4 Bg7 10. Nc3 O-O
1966 La Habana olm fin-A – Round 1 – Rossolimo, Nicolas – 1-0 – Aguilar Petersen, Martin Alejandro – G11 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 g6 8. c4 Bg7 9. Be3 Nf6 10. f3 O-O
1966 Tbilisi ch-URS – Round 15 – Gurgenidze, Bukhuti – 1/2-1/2 – Geller, Efim P – G134 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 e6 7. Nbd2 Nf6 8. a3 Be7 9. Rb1 O-O 10. b4 cxb4
1966 Tbilisi ch-URS – Round 5 – Kholmov, Ratmir D – 1/2-1/2 – Suetin, Alexey S – G46 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 g6 8. Nc3 Bg7 9. Nf3 Nf6 10. Re1 O-O
1967 October Revolution 50 – Round ? – Fuchs, Reinhart – 1/2-1/2 – Udovcic, Mijo – G99 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 g6 7. c3 Bg7 8. Rd1 Rc8 9. d4 cxd4 10. cxd4 Bxd4
1967 Olssons Memorial 6768 – Round 4 – Gaprindashvili, Nona – 1/2-1/2 – Geller, Efim P – G12 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 g6 7. Nbd2 Bg7 8. a3 Nf6 9. Rb1 O-O 10. b4 b6
1967 Paignton Women's International – Round 6 – Gaprindashvili, Nona – 1-0 – Bruce, Rowena M – G9 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 g6 7. Nbd2 Bg7 8. a3 Nf6 9. Rb1 O-O 10. b4 b6
1967 URS Team Ch – Round 1 – Gaprindashvili, Nona – 1-0 – Borisenko-Belova, Valentina – G72 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Re1 e6 9. c4 Be7 10. Nc3 O-O
1967 URS Team Ch – Round 1 – Gurgenidze, Bukhuti – 1-0 – Danov, Vladimir – G75 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 g6 7. a3 Bg7 8. Nc3 Nf6 9. Rb1 a5 10. a4 O-O
1967 Venice Venice ITA – Round 1 – Zinser, Sylvain – 1/2-1/2 – Tatai, Stefano – G3 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 Nf6 7. c3 e6 8. Rd1 Be7 9. Na3 O-O 10. Nc2 Qc7
1968 Lugano ol (Men) – Round 1 – Keller, Dieter – 1/2-1/2 – Gheorghiu, Florin – G30 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 Nf6 7. Rd1 e6 8. d4 cxd4 9. Nxd4 Be7 10. Nc3 O-O
1969 Luhacovice – Round 4 – Augustin, Joseph – 1/2-1/2 – Jansa, Vlastimil – G41 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 e6 7. b3 Be7 8. Bb2 Bf6 9. c3 Nge7 10. d4 cxd4
1969 Reggio Emilia 6970 12th – Round ? – Troianescu, Octav – 1/2-1/2 – Bertok, Mario Jr. – G7 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. Qe2 Nf6 7. c3 e6 8. Rd1 Be7 9. d4 cxd4 10. Nxd4 O-O
1969 Schwerin – Round 15 – Fuchs, Reinhart – 1/2-1/2 – Hennings, Artur – G103 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 g6 7. Nbd2 Bg7 8. a4 Nf6 9. Nc4 O-O 10. Re1 Ng4
Corus 2001 – Round 6 – Morozevich, Alexander – 1/2-1/2 – Kasparov, Garry – G37 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. d3 e6 7. b3 Be7 8. Bb2 Nf6 9. c4 O-O 10. Nc3 d5
Sparkassen Cat XXI 2001 – Round 7 – Adams, Michael – 1/2-1/2 – Anand, Viswanathan – G18 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. b3 6. ... Nf6 7. Re1 g6 8. c3 Bg7 9. d4 cxd4 10. cxd4 d5

B52o —

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6

Eval: [+0.16]

Les coups candidats

6.c3 — 63.5% (6169 parties) →

Ambassadeurs : Tocklin, Tomi (30x), Garrigos Ortiz, Manuel (24x), ? (23x), Wharrier, Jonathon A (23x), Georgiev, Krum (17x), Glek, Igor (16x), Galvin, John H. (15x), Curdo, John (14x)

6.c4 — 8.1% (790 parties) →

Ambassadeurs : Georgiev, Krum (8x), Shabanov, Yuri (6x), Sax, Gyula (6x), Munoz, Miguel (6x), Hennings, Artur (4x), Kotan, Ladislav (4x), Werner, Clemens (4x), Roeder, Matthias (4x)

6.d4 — 7.4% (719 parties)

Ambassadeurs : Sikora-Gizynska, Bozena (9x), Popov, Vladimir Valentinovich (6x), Gizynski, Tomasz (5x), Linczer, Janos (5x), Vio, Mauro (5x), Muratovic, Enver (5x), Kholmov, Ratmir D (4x), Glodeanu, Ion (4x)

6.Re1 — 6.6% (643 parties) →

Ambassadeurs : Savic, Miodrag R (7x), Cosentino, Aldo (6x), Talos, Doru Ioan (5x), Laurent, Bruno (4x), Malar, Pavol (4x), Wharrier, Jonathon A (4x), Altman, Joshua (4x), Parkanyi, Attila (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.c3	6.c4	6.d4	6.Re1
<1800	333	50%	5%	11%	10%
1800-2200	3683	66%	7%	8%	6%
2200-2600	4082	64%	10%	5%	7%
2600+	107	60%	11%	—	9%

Évolution par décennie (% des parties)

Décennie	N parties	6.c3	6.c4	6.d4	6.Re1
1930s	1	100%	—	—	—
1940s	7	29%	—	43%	—
1950s	60	40%	10%	25%	3%
1960s	104	40%	14%	16%	9%
1970s	225	63%	15%	9%	8%
1980s	410	73%	8%	9%	3%
1990s	1477	67%	10%	9%	6%
2000s	3066	64%	9%	7%	6%
2010s	3629	62%	6%	7%	6%
2020s	730	64%	8%	5%	13%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.c3	62%	64%	▲ +2.1%
6.c4	6%	8%	▲ +1.3%
6.d4	7%	5%	▼ -2.5%
6.Re1	6%	13%	▲ +6.2%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 6 parties
Kasparov, Garry — 4 parties
Karpov, Anatoly — 3 parties
Carlsen, Magnus — 3 parties
Tal, Mikhail — 2 parties
Hou, Yifan — 2 parties
Smyslov, Vladimir — 1 partie
Kramnik, Vladimir — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

6.c3 — 63.5% (6169 parties)

1939 — Stoffels M vs Roodzant, Catharina — 1/2-1/2 — Buenos Aires ARG
1942 — Thelen, Bedrich vs Kottnauer, Cenek — 0-1 — Prague CZE
1949 — Weiss, Florian vs Opocensky, Miroslav — 0-1 — Bucharest ROU
1950 — Pilnik, Herman vs Reshevsky, Samuel — 1/2-1/2 — Amsterdam NED
1950 — Kostic, Boris vs Matanovic, Aleksandar — 0-1 — Bled SLO

6.c4 — 8.1% (790 parties)

1954 — Livshin, Iosif vs Petrosian, Tigran A. — 1/2-1/2 — Kiev ch-URS
1956 — Weiner, Milan vs Zobel, Leo — 1-0 — Bratislava SVK
1959 — Barendregt, Johan vs Van den Berg, Cees — 1/2-1/2 — Beverwijk NED
1959 — Bilek, Istvan vs Fuderer, Andrija — 1/2-1/2 — Belgrade SRB
1959 — Aronin, Lev vs Spassky, Boris V. — 1/2-1/2 — Moscow RUS

6.d4 — 7.4% (719 parties)

1943 — Kubanek, Jindrich vs Carls, Carl — 0-1 — Prague CZE
1948 — O'Kelly, Albéric de Galway vs Garcia, Balado — 1-0 — Buenos Aires ARG
1949 — Saemisch, Friedrich vs Koller, Alexander — 1-0 — Bern SUI
1950 — Benvenuti Giovanni vs Szabados, Eugenio — 1/2-1/2 — Venice ITA
1950 — Canal, Esteban vs Mastichiadis, Fotis — 1/2-1/2 — Dubrovnik CRO

6.Re1 — 6.6% (643 parties)

1953 — Taimanov, Mark vs Gligorić, Svetozar — 0-1 — Zurich SUI
1959 — Ulvestad, Olaf vs Steinmeyer, Robert — 0-1 — Omaha
1960 — Ousatchi, Mark vs Gufeld, Eduard — 1/2-1/2 — Kiev UKR
1960 — Bielicki, Carlos vs Goldenberg, Edgardo — 1/2-1/2 — Buenos Aires ch-ARG
1961 — Barendregt, Johan vs Olafsson, Fridrik — 0-1 — Beverwijk NED

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