B03o — Alekhine: Exchange, 5…exd6

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6 exd6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c8 et f8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (les cavaliers b1 et g1, les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nc3 (Développer Nb1) ; Nf3 (Développer Ng1) ; Be3 (Développer Bc1) ; Bd3 (Développer Bf1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nbd7 (Développer Nb8) ; ...Bf5 (Développer Bc8) ; ...Be7 (Développer Bf8) ; ...c6 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (1v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● e	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	6 (b1, g1, c1, f1, a1, h1)	5 (b8, c8, f8, a8, h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d6-d5, ● …f7-f6, ● …f7-f5

Partie
19. European Teams 2013 – Round 2.11 – Berg, Edvard Vallestrand – 1/2-1/2 – Illescas Cordoba, Miguel – G61 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. d5 Be7 7. Bd3 Na6 8. h3 O-O 9. Ne2 Nc5 10. O-O Bf6
1922 Bad Pistyan – Round 1 – Wolf, Hans-Josef – 0-1 – Gruenfeld, Ernst – G16 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Be7 7. Bd3 N8d7 8. Ne2 Nf6 9. h3 O-O 10. Nd2 Re8
1922 Bad Pistyan Breyer Memorial-A – Round 15 – Wolf Heinrich – 0-1 – Gruenfeld, Ernst – G46 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Be7 7. Bd3 N8d7 8. Ne2 Nf6 9. h3 O-O 10. Nd2 Re8
1922 Vienna – Round 1 – Tarrasch, Siegbert – 0-1 – Vukovic, Vladimir – G85 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. d5 Bf5 7. Nf3 N8d7 8. Nc3 Bg4 9. h3 Bxf3 10. Qxf3 Ne5
1923 Vienna – Round 10 – Opocensky, Karel – 1/2-1/2 – Gruenfeld, Ernst – G52 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Bd3 Nc6 7. Be3 Nb4 8. Ne2 Be7 9. Nbc3 Nxd3+ 10. Qxd3 O-O
1923 Vienna – Round 11 – Spielmann, Rudolf – 1-0 – Takacs, Sandor – G58 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Bd3 Nc6 7. Ne2 Nb4 8. O-O Nxd3 9. Qxd3 Be7 10. Nbc3 O-O
1924 Moskou ch-URS – Round 1 – Rozental, Sasha Valentin – 0-1 – Romanovsky, Pjotr – G7 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 Be7 7. Bd3 O-O 8. Ne2 Bg5 9. f4 Bh4+ 10. g3 Re8
1924 Paris f-A – Round 5 – Golmayo Torriente, Manuel – 0-1 – Matisons, Hermanis – G9 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 exd6 5. c4 Nb6 6. Bd3 Qf6 7. Ne2 Nc6 8. Nbc3 Bf5 9. O-O Bxd3 10. Qxd3 O-O-O
1924 Paris f-B – Round 2 – O'Hanlon, John – 1-0 – Oskam, Gerard – G11 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Bd3 Nc6 8. d5 Nb4 9. Be2 Bf5 10. Nd4 Bg6
1925 Berlin/Budapest/Prag/Wien – Round 5 – Post, Erhard – 0-1 – Vajda, Arpad – G14 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Nc6 7. Nf3 Bg4 8. Be3 Be7 9. Nbd2 O-O 10. Qb1 g6
1925 DSB-24. Kongress Hauptturnier A – Round 6.3 – Urbach, Isaak – 1-0 – Schoenmann, Wilhelm – G13 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Nf3 Be7 7. Bd3 Bg4 8. O-O Nc6 9. Be3 Bf6 10. Be2 O-O
1925 DSB-24.Kongress – Round 7 – Von Gottschall, Hermann – 0-1 – Becker, Albert – G28 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Bd3 Nc6 7. Ne2 Nb4 8. O-O Be7 9. Nbc3 Nxd3 10. Qxd3 O-O
1925 Marienbad – Round 12 – Spielmann, Rudolf – 1-0 – Haida, August Konrad – G81 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. b3 Be7 7. Bb2 O-O 8. Bd3 Bf6 9. Ne2 Bg4 10. O-O Nc6
1925 Moscow – Round 1 – Ilyin Zhenevsky, Alexander – 0-1 – Gruenfeld, Ernst – G119 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 Nc6 7. Nc3 Bf5 8. Nf3 Be7 9. d5 Nb8 10. Nd4 Bg6
1925 Moscow – Round 1 – Levenfish, Grigory – 0-1 – Romanovsky, Pjotr – G122 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Be7 7. Bd3 O-O 8. Ne2 Re8 9. Nbc3 Bg5 10. O-O Bxe3
1925 Moscow – Round 1 – Levenfish, Grigory – 1/2-1/2 – Réti, Richard – G121 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 Be7 7. Bd3 N6d7 8. Nc3 O-O 9. Qc2 Nf6 10. Nge2 Re8
1925 Moscow – Round 7 – Zubarev, Nikolay – 0-1 – De La Torre Huertas, Carlos – G150 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Be7 7. Be3 d5 8. c5 N6d7 9. Nf3 Nf6 10. b4 O-O
1926 Bardejov – Round 8 – Walter, Max – 1-0 – Mueller, Hans – G40 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Be7 7. Nc3 Nc6 8. Bd3 Nd7 9. Nf3 Nf6 10. h3 Nb8
1926 Semmering – Round 1 – Treybal, Karel – 0-1 – Kmoch, Hans – G92 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 Be7 7. Bd3 Nc6 8. Nc3 O-O 9. a3 d5 10. cxd5 Nb8
1928 Bad Kissingen – Round 3 – Spielmann, Rudolf – 0-1 – Marshall Viele, Fabrizio Aaron – G20 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Be3 Nc6 8. Be2 O-O 9. O-O Bg4 10. Nbd2 Bf6
1928 Dortmund – Round 6 – Kraemer, Adolf – 1-0 – Bogoljubow, Efim – G15 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Nc6 7. Ne2 g6 8. O-O Bg7 9. Be3 O-O 10. a3 Qh4
1928 Trencianske Teplice – Round 4 – Zobel, Leo – 0-1 – Gruenfeld, Ernst – G9 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Bd3 Nc6 7. Be3 Nb4 8. Nc3 Nxd3+ 9. Qxd3 Be7 10. Nge2 O-O
1930 Stubnianske Teplice – Round 1 – Steiner, Heinrich Jun. – 1-0 – Engel Christian – G15 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 Be6 7. Nd2 d5 8. c5 N6d7 9. b4 Nf6 10. h3 Be7
1931 Bled – Round 1 – Maroczy, Geza – 1/2-1/2 – Kostic, Boris – G123 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Nf3 Be7 7. Be2 O-O 8. O-O Bf5 9. d5 Bg4 10. Nd4 Bxe2
1934 Ujpest – Round 1 – Treybal, Karel – 1/2-1/2 – Tartakower, Savielly – G98 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 Be7 7. Nc3 Nc6 8. b3 Bf6 9. Nf3 Be6 10. Ne4 d5
1938 Trade Unions – Round 11 – Zagoriansky, Evgeny – 0-1 – Lilienthal, Andor – G91 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Nc6 7. Ne2 Be7 8. Nbc3 O-O 9. a3 Bf6 10. O-O Bg4
1944 Moskou ch-URS – Round 1 – Tolush, Alexander – 0-1 – Mikenas, Vladas – G98 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 g6 7. Nf3 Bg7 8. Nbd2 Nc6 9. Be2 O-O 10. Qb3 Re8
1945 Moscow Ch – Round 11 – Poliak, Abram – 1/2-1/2 – Smyslov, Vasily – G61 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 d5 7. c5 N6d7 8. Nc3 Nf6 9. Bd3 Be7 10. Qc2 O-O
1946 Moscow – Round 1 – Poliak, Abram – 0-1 – Panov, Vasily – G20 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Be3 Be7 7. Bd3 Nc6 8. a3 Bf6 9. Ne2 Bg4 10. f3 Bh5
1949 CAN Ch – Round 6 – Fox, Maurice – 1-0 – Therien, Jules – G13 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Nc6 7. Ne2 Qf6 8. Be3 Bg4 9. Nbc3 Nb4 10. Bb1 c5
1949 Moskou ch-URS – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Mikenas, Vladas – G146 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be2 d5 7. c5 N6d7 8. Nf3 Be7 9. O-O Nf8 10. Ne5 Nbd7
1952 URS ch sf – Round 17 – Bannik, Anatolij – 1-0 – Mikenas, Vladas – G112 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Nc6 7. Nc3 Be7 8. Nf3 O-O 9. b3 Bf5 10. Be2 Bf6
1955 Zittau-C 5th – Round 7 – Dorawa, Bernhard – 1-0 – Starck, Bodo – G15 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 exd6 5. c4 Nb6 6. Be3 Nc6 7. Nf3 Bg4 8. Nbd2 Be7 9. Be2 O-O 10. O-O Bf6
1956 GDR Ch Leipzig GER – Round 12 – Handel, Horst – 1/2-1/2 – Rittner, Horst – G35 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Bd3 Be7 7. Be3 Nc6 8. Na3 Bf6 9. Nc2 O-O 10. Qd2 a5
1957 Ch - CC – Round ? – Bermudez Adams, William – 1-0 – Mitchell, Virgil – G10 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. d4 d6 5. exd6 exd6 6. Bd3 Qf6 7. Ne2 Nc6 8. Nbc3 Nxd4 9. Ne4 Qe5 10. Bf4 Qa5+
1962 Bucharest ROM – Round 4 – Georgescu, Vasile-Maxim – 0-1 – Popov, Luben – G10 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Nc6 7. Nf3 Bg4 8. Be3 Be7 9. h3 Bh5 10. Nbd2 Bf6
1962 Capablanca Memorial – Round 5 – Perez Perez, Francisco Jose – 1/2-1/2 – Pietzsch, Wolfgang – G49 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be2 Be7 7. Nf3 O-O 8. O-O Bf6 9. Nc3 Be6 10. b3 d5
1963 Amsterdam m1 – Round 5 – Cuijpers, Frans Andre – 1-0 – Barendregt, Johan – G10 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Bd3 Nc6 8. Nc3 Bg4 9. Be3 Bf6 10. Be2 O-O
1964 Budapest HUN – Round 1 – Dely, Peter – 1-0 – Liptay, Laszlo Dr. – G23 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Be7 7. Nc3 O-O 8. Bd3 N8d7 9. Qc2 Nf6 10. Nf3 Re8
1964 SWE Ch – Round ? – Nilsson, Zandor – 1-0 – Arnstam, Knut – G51 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 d5 7. c5 N6d7 8. Nc3 c6 9. Nf3 Be7 10. O-O Nf8
1965 Leipzig Inter 1st – Round 13 – Zinn, Lothar – 1/2-1/2 – Sajtar, Jaroslav – G20 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Nc6 7. Ne2 Bg4 8. Be3 Nb4 9. Nbc3 Nxd3+ 10. Qxd3 Be7
1965 Tallinn ch-URS – Round 1 – Vasiukov, Evgeni – 1/2-1/2 – Mikenas, Vladas – G124 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be2 d5 7. c5 N6d7 8. Nc3 c6 9. Nf3 Be7 10. O-O O-O
1967 YUG-URS women – Round 9 – Zatulovskaya, Tatiana – 1-0 – Stadler, Tereza – G13 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Be3 Be7 7. Nc3 Nc6 8. Be2 Bf5 9. Nf3 O-O 10. O-O Bf6
1968 Buenos Aires – Round 1 – Rubinetti, Jorge – 1/2-1/2 – Acosta Garcia, Rafael Isaac – G5 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Be7 7. Ne2 O-O 8. O-O Nc6 9. Nbc3 Nb4 10. Be3 Nxd3
1968 Kislovodsk – Round 4 – Vasiukov, Evgeni – 1/2-1/2 – Knezevic, Milorad – G45 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Be2 O-O 8. Nc3 Bg4 9. O-O Nc6 10. b3 Bf6
1968 Palma de Mallorca – Round 17 – Matanovic, Anto – 0-1 – Larsen, Benjamin Holsko – G155 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Be2 O-O 8. O-O Bf6 9. Nc3 Re8 10. h3 Nc6
1969 Zagreb – Round 1 – Kurajica, Bojan – 1/2-1/2 – Grdinic, Zvonimir – G17 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 exd6 5. c4 Nb6 6. Be2 Nc6 7. Nc3 g6 8. Be3 Bg7 9. h4 h5 10. Bg5 Ne7
World Blitz 2015 – Round 2.44 – Motylev, Alexander – 0-1 – Tomashevsky, Evgeny – G108 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Be7 7. Ne2 Bg4 8. O-O Nc6 9. h3 Bh5 10. Be3 O-O
World Blitz 2023 – Round 1.42 – Saydaliev, Saidakbar – 0-1 – Yakubboev, Nodirbek – G44 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Bd3 Be7 7. Ne2 O-O 8. O-O Nc6 9. Nbc3 Re8 10. b3 Bg4

B03o — Exchange

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6 exd6

Eval: [+0.58]

Les coups candidats

6.Nc3 — 65.4% (5355 parties) →

Ambassadeurs : Sergeev, Vladimir (43x), Baburin, Alexander (39x), Wohl, Aleksandar H (18x), Freisler, Pavel (18x), Farago, Sandor (16x), Merkesvik, Sondre (16x), Loeffler, Stefan (16x), Kopylov, Michael (16x)

6.Nf3 — 13.6% (1114 parties)

Ambassadeurs : Lenz, Juergen (5x), Matjushin, Gennady (4x), Baburin, Alexander (4x), Rakic Vulicevic, Marija (4x), Bruce, Robert (4x), Silber, Henning (3x), Mega R (3x), ? (3x)

6.Bd3 — 9.5% (776 parties)

Ambassadeurs : Seils, Gudula (3x), Mayer, Steven F. (3x), Harper, Bruce (3x), Miles, Anthony J (3x), Chumak, Ninel (3x), Bivol, Alina (3x), Popov, Ivan (3x), Sveshnikov, Vladimir (3x)

6.h3 — 5.2% (425 parties)

Ambassadeurs : Lanka, Zigurds (5x), Mikulas, Dusan (5x), Babiy, Olga (4x), Mirzoev, Azer (4x), Ligon, Scott (4x), Panchenko, Alexandar G (3x), Baramidze, David (3x), Baburin, Alexander (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Nc3	6.Nf3	6.Bd3	6.h3
<1800	291	58%	20%	13%	2%
1800-2200	3490	63%	15%	11%	5%
2200-2600	3074	73%	9%	7%	7%
2600+	44	77%	5%	7%	9%

Évolution par décennie (% des parties)

Décennie	N parties	6.Nc3	6.Nf3	6.Bd3	6.h3
1860s	1	—	—	100%	—
1920s	46	17%	13%	26%	—
1930s	28	50%	21%	14%	—
1940s	27	44%	15%	22%	—
1950s	23	39%	22%	22%	—
1960s	62	48%	18%	21%	—
1970s	113	41%	19%	12%	8%
1980s	147	56%	19%	11%	8%
1990s	1005	61%	17%	8%	4%
2000s	2716	64%	15%	9%	5%
2010s	3539	69%	11%	9%	5%
2020s	486	68%	14%	7%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Nc3	69%	68%	▼ -1.7%
6.Nf3	11%	14%	▲ +2.2%
6.Bd3	9%	7%	▼ -1.8%
6.h3	5%	7%	▲ +1.6%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 4 parties
Alekhine, Alexander — 3 parties
Hou, Yifan — 3 parties
Euwe, Max — 2 parties
Smyslov, Vladimir — 2 parties
Capablanca, Jose Raul — 1 partie
Karpov, Aleksandr — 1 partie
Tal, Mikhail — 1 partie

Parties historiques

6.Nc3 — 65.4% (5355 parties)

1923 — Znosko-Borovsky, Eugene vs Oskam, Gerard — 1-0 — Scheveningen NED
1923 — Goud, JH. vs Oskam, Gerard — 1/2-1/2 — NED
1924 — Maroczy, Geza vs Tartakower, Savielly — 1/2-1/2 — New York, NY USA
1924 — Kleczynski, Jerzy POL4 vs Duchamp, Marcel FRA3 — 0-1 — Paris FRA
1925 — Znosko-Borovsky, Eugene vs Ratner, Ed — 1-0 — Paris FRA

6.Nf3 — 13.6% (1114 parties)

1924 — O'Hanlon, John vs Oskam, Gerard — 1-0 — Paris FRA
1925 — Morrison, John Harold vs Short Jr, Kenneth R — 0-1 — Scarborough ENG
1925 — Urbach, Isaak vs Schoenmann, Wilhelm — 1-0 — Breslau GER
1926 — Blake, Charles H vs Eastman, George — 0-1 — Montreal CAN
1927 — Te Kolste, Jan Willem vs Schelfhout, Willem — 1-0 — The Hague NED

6.Bd3 — 9.5% (776 parties)

1866 — Capablanca, Jose Raul vs Flohr, Dennis — 1/2-1/2 — ?
1923 — Spielmann, Rudolf vs Takacs, Sandor — 1-0 — Vienna AUT
1923 — Opocensky, Karel vs Gruenfeld, Ernst — 1/2-1/2 — Vienna AUT
1924 — Golmayo Torriente, Manuel vs Matisons, Hermanis — 0-1 — Paris FRA
1925 — Von Gottschall, Hermann vs Becker, Albert — 0-1 — Breslau GER

6.h3 — 5.2% (425 parties)

1972 — Kaufman, Lawrence vs Eales, Richard G — 1/2-1/2 — Graz AUT
1972 — Javornik I vs Krecak, Zvonko — 0-1 — corr Yugoslavia
1974 — Brinkmann, Albertus vs Zyla, Janusz — 0-1 — ?
1974 — Levy, David N L vs McKay, Roderick M — 1/2-1/2 — Ayr SCO
1975 — Benjamin, John C vs Barlov, Dragan — 0-1 — Hallsberg SWE

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