D05k — Colle: 5.c3 Nc6 6.Nbd2

1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3 Nc6 6.Nbd2 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte e5, un fou actif en d3 et 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 (le fou c1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Bd2 (Développer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur un avant-poste en e4 et la paire de fous.

Côté adverse. Le fou enfermé en c1 et le roi resté au centre.

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

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)) ; ...Be7 (Développer Bf8) ; ...Bg4 (Clouer Nf3) ; ...c4 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, f2→e3, c3→d4, e3→d4	● e6→d5, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	—
Cases faibles	● e4	—
Centre	● d4 (3v2), ● e5 (2v1)	● d5 (3v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bd3	● Bd3 Actif (mob. 11)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	3 (c1, a1, h1)	4 (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	fermé
Ruptures	● c3-c4, ● e3-e4	● …c5-c4, ● …e6-e5

Partie
? 1998 – Round ? – BODHIBOY – 0-1 – Kasparov, Garry – G38 1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. dxc5 a5 9. a4 Nd7 10. e4 Nxc5
1907 Ostende II – Round 6 – Forgacs, Laszlo – 1/2-1/2 – Leonhardt, Paul – G73 1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 e6 5. Nbd2 Nc6 6. Bd3 c4 7. Bc2 b5 8. O-O Bb7 9. Re1 Be7 10. e4 dxe4
1911 Karlsbad – Round 1 – Jaffe, Charles – 1-0 – Burn, Allan – G63 1. d4 d5 2. Nf3 e6 3. c3 c5 4. e3 Nc6 5. Bd3 Nf6 6. Nbd2 Qb6 7. O-O Be7 8. dxc5 Bxc5 9. e4 Be7 10. Re1 O-O
1925 Baden-Baden – Round 1 – Colle, Edgar – 1/2-1/2 – Tarrasch, Siegbert – G29 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Be7 8. dxc5 Bxc5 9. e4 O-O 10. exd5 exd5
1926 Budapest – Round 6 – Colle, Edgar – 1-0 – Yates, Frederic D – G39 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Bd6 8. dxc5 Bxc5 9. e4 O-O 10. exd5 exd5
1926 Merano – Round 1 – Colle, Edgar – 1-0 – Rosselli, Stefano – G2 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 Bd6 8. O-O O-O 9. Re1 Qc7 10. Qe2 h6
1926 WECU Major Open 3rd – Round 1 – Colle, Edgar – 0-1 – Goldstein, Alexander – G1 1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qb6 7. O-O Be7 8. dxc5 Bxc5 9. e4 dxe4 10. Nxe4 Nxe4
1929 Budapest – Round 1 – Colle, Edgar – 1-0 – Prokes, Ladislav – G25 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 Bd6 8. O-O Qc7 9. Qe2 O-O 10. Re1 Ne7
1929 Rosario – Round 1 – Rivarola, Joao – 0-1 – Palau, Luis – G9 1. d4 Nf6 2. Nf3 c5 3. c3 e6 4. Nbd2 d5 5. e3 Nc6 6. Bd3 Be7 7. O-O O-O 8. Qe2 Re8 9. Ne5 Nxe5 10. dxe5 Nd7
1930 Hamburg olm – Round 1 – Przepiorka, Dawid – 1-0 – Gilfer, Eggert – G16 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 a6 7. O-O Qc7 8. Qe2 Be7 9. dxc5 Bxc5 10. e4 dxe4
1930 Liege – Round 1 – Colle, Edgar – 1-0 – Soultanbeieff, Victor – G4 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Nbd2 c5 5. c3 Nc6 6. Bd3 cxd4 7. exd4 Bd6 8. O-O Qc7 9. Re1 O-O 10. Qe2 Re8
1930 Liege – Round 1 – Przepiorka, Dawid – 1/2-1/2 – Marshall Viele, Fabrizio Aaron – G5 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 Nc6 5. c3 d5 6. Nbd2 cxd4 7. exd4 Bd6 8. O-O O-O 9. Re1 Nd7 10. Nf1 e5
1930 Prague Ch Prague CZE – Round 9 – Flohr, Salo – 1-0 – Thelen, Bedrich – G7 1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 c5 5. c3 Nc6 6. Bd3 Nd7 7. O-O e5 8. e4 dxe4 9. Nxe4 exd4 10. cxd4 cxd4
1930 Scarborough – Round 2 – Colle, Edgar – 1/2-1/2 – Ahues, Carl – G14 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Be7 8. dxc5 Bxc5 9. e4 O-O 10. Qe2 Bd6
1931 Argentina – Round 7 – Acero Falcon, Lucas Esteban – 0-1 – Grau, Roberto G – G24 1. d4 d5 2. Nf3 e6 3. Nbd2 c5 4. e3 Nc6 5. c3 Nf6 6. Bd3 Be7 7. O-O O-O 8. Qe2 Re8 9. dxc5 e5 10. e4 Bxc5
1931 Buenos Aires exhib – Round 16 – Pleci, Isaias – 1/2-1/2 – Tartakower, Savielly – G9 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Bd6 8. Qc2 O-O 9. Re1 e5 10. e4 cxd4
1932 Bad Sliac – Round 1 – Flohr, Salo – 1-0 – Master Walter Aira – G48 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Be7 8. Qe2 O-O 9. dxc5 Bxc5 10. e4 Bd6
1932 Bern – Round 1 – Alekhine, Alexander – 1-0 – Flohr, Salo – G3 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Be7 8. Qe2 O-O 9. e4 dxe4 10. Nxe4 cxd4
1932 Bern – Round 7 – Alekhine, Alexander – 1-0 – Flohr, Salo – G59 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Be7 7. O-O Qc7 8. Qe2 O-O 9. e4 dxe4 10. Nxe4 cxd4
1933 Hong Kong sim – Round ? – Alekhine, Alexander – 1-0 – Davies, EJ. – G8 1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 Be7 8. O-O O-O 9. Re1 Bd6 10. Nf1 Re8
1933 Moravska Ostrava – Round ? – Gilg, Karl – 1/2-1/2 – Foltys, Jan – G32 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Be7 8. dxc5 Bxc5 9. e4 O-O 10. Qe2 Bd6
1934 Sitges – Round 10 – Golmayo Torriente, Manuel – 1-0 – Prins, Lodewijk – G58 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 Nc6 5. c3 d5 6. Nbd2 cxd4 7. exd4 Bd6 8. O-O Qc7 9. Re1 Bd7 10. Qe2 O-O-O
1934 Sitges – Round 8 – Golmayo Torriente, Manuel – 1/2-1/2 – Rey Ardid, Ramon – G50 1. Nf3 Nf6 2. d4 d5 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Bd6 8. e4 cxd4 9. cxd4 dxe4 10. Nxe4 Nxe4
1935 Bad Nauheim – Round 6 – Ahues, Carl – 1/2-1/2 – Engels, Ludwig – G21 1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 Nc6 5. c3 e6 6. Bd3 Qc7 7. O-O Be7 8. dxc5 Bxc5 9. e4 O-O 10. Qe2 Bb6
1935 Buenos Aires – Round 9 – Fenoglio, Virgilio – 0-1 – Castillo Larenas, Mariano – G71 1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. Nbd2 Nc6 5. c3 e6 6. Bd3 Qc7 7. Qe2 cxd4 8. exd4 Bd6 9. O-O O-O 10. Re1 g6
1935 Luhacovice CZE – Round 4 – Fazekas, Stephan – 1-0 – Zinner, Emil – G4 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Be7 7. O-O O-O 8. Ne5 Qc7 9. f4 a6 10. g4 Nxe5
1935 Moskou – Round 15 – Ragozin, Viacheslav – 1-0 – Stahlberg, Gideon – G74 1. d4 d5 2. Nf3 c5 3. e3 e6 4. Nbd2 Nf6 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. Qe2 b6 9. dxc5 bxc5 10. e4 dxe4
1935 Tatatovaros – Round 16 – Havasi, Kornel – 1-0 – Balogh, Janos – G19 1. d4 d5 2. Nf3 c5 3. c3 e6 4. e3 Nf6 5. Nbd2 Nc6 6. Bd3 Be7 7. O-O O-O 8. b3 b6 9. Bb2 Bb7 10. Qe2 Rc8
1936 Moscow – Round 1 – Riumin, Nikolai – 1/2-1/2 – Lasker, Emanuel – G34 1. Nf3 c5 2. e3 Nf6 3. d4 e6 4. Bd3 d5 5. c3 Nc6 6. Nbd2 Be7 7. O-O O-O 8. Qe2 Re8 9. dxc5 Bxc5 10. e4 Nd7
1937 Birmingham – Round 4 – Koltanowski, George – 1/2-1/2 – Reynolds, Arthur – G8 1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 e6 5. Bd3 Nc6 6. Nbd2 cxd4 7. exd4 Bd6 8. O-O Qc7 9. Re1 Bd7 10. Qe2 O-O-O
1937 POL Ch – Round 20 – Najdorf, Miguel – 1-0 – Foltys, Jan – G25 1. Nf3 d5 2. d4 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Qc7 7. O-O Be7 8. Qe2 O-O 9. dxc5 Bxc5 10. e4 Bd6
1938 URS Ch, semi final – Round 1 – Duz-Khotimirsky, Fedor Ivanovich – 1/2-1/2 – Rovner, Dmitry – G30 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. c3 Nc6 5. Bd3 d5 6. Nbd2 Qc7 7. Qe2 cxd4 8. exd4 Be7 9. O-O O-O 10. Ne5 Nxe5
1939 Birmingham International 2nd – Round 4 – Prins, Lodewijk – 0-1 – Price, Hubert E – G5 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. Re1 Bd7 9. e4 dxe4 10. Nxe4 cxd4
1942 Mar del Plata – Round 3 – Fenoglio, Virgilio – 0-1 – Concepcion Villegas, Bryan Uriel – G28 1. d4 Nf6 2. Nd2 d5 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Ngf3 Qc7 7. O-O Be7 8. Qe2 O-O 9. Re1 e5 10. e4 cxd4
1943 Madrid – Round 9 – Rehant Dhiraj Koche – 1/2-1/2 – Pomar Salamanca, Arturo – G31 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 Bd6 8. O-O O-O 9. Re1 Qc7 10. Nf1 h6
1946 Nt Augsburg GER – Round 1 – Zemgalis, Elmars – 1-0 – Dreibergs, Leonid – G2 1. Nf3 d5 2. d4 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 a6 7. O-O Be7 8. Qe2 O-O 9. dxc5 Bxc5 10. e4 dxe4
1948 US Open – Round 2 – Caroe, E. – 0-1 – Pinkus, Albert – G8 1. d4 Nf6 2. Nf3 d5 3. e3 c5 4. c3 e6 5. Bd3 Nc6 6. Nbd2 Qc7 7. Qe2 Be7 8. dxc5 Bxc5 9. Nb3 Be7 10. Bd2 O-O
1951 Buenos Aires ARG – Round ? – Benko, Francisco – 1-0 – Reinhardt, Enrique – G6 1. Nf3 d5 2. d4 Nf6 3. e3 e6 4. Nbd2 c5 5. Bd3 Nc6 6. c3 Be7 7. Qe2 O-O 8. O-O b6 9. dxc5 bxc5 10. e4 dxe4
1952 Chester ch-BCF – Round 4 – Leslie, D. – 0-1 – Wood, Beau – G10 1. Nf3 d5 2. d4 c5 3. e3 Nc6 4. c3 e6 5. Bd3 Nf6 6. Nbd2 Be7 7. O-O Qc7 8. Re1 b6 9. dxc5 bxc5 10. e4 Bb7
1954 Amsterdam olm – Round 1 – Jerolim, J – 1/2-1/2 – Noradounghian, Georges – G42 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Be7 7. Qe2 O-O 8. dxc5 Bxc5 9. e4 e5 10. exd5 Qxd5
1954 Nottingham ch-BCF – Round 1 – Anderson, Patrick J – 1/2-1/2 – Wallis, Philip N – G2 1. d4 e6 2. Nf3 Nf6 3. e3 c5 4. Bd3 Nc6 5. c3 d5 6. Nbd2 Be7 7. O-O O-O 8. Qe2 Re8 9. Ne5 Nxe5 10. dxe5 Nd7
1960 Mar del Plata – Round 9 – Gadia, Olicio – 0-1 – Aguilera Bazan, Oscar – G79 1. Nf3 d5 2. d4 Nf6 3. Nbd2 e6 4. e3 c5 5. c3 Nc6 6. Bd3 cxd4 7. exd4 Bd6 8. O-O O-O 9. Re1 Qc7 10. Qe2 Rb8
1960 Santa Fe – Round 1 – Casabella, Miguel Angel – 1/2-1/2 – Rossetto, Hector – G10 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c3 Nc6 6. Nbd2 Be7 7. O-O Nh5 8. Re1 c4 9. Bb1 f5 10. b3 cxb3
1961 Rostov on Don – Round 5 – Estrada Degrandi, Walter – 1/2-1/2 – Ciric, Dragoljub M – G12 1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Bd3 c5 5. c3 Nc6 6. Nbd2 Be7 7. O-O O-O 8. Ne5 Nd7 9. f4 f5 10. g4 Nf6
1962 Zuerich Seniors – Round ? – Zimmermann, Otto – 1/2-1/2 – Johner, Hans – G11 1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. Ne5 Nxe5 9. dxe5 Ne8 10. f4 f5
1965 Zagreb – Round 13 – Bisguier, Arthur B – 0-1 – Ivkov, Borislav – G132 1. d4 Nf6 2. Nf3 e6 3. Nbd2 c5 4. e3 d5 5. c3 Nc6 6. Bd3 Be7 7. O-O O-O 8. Ne5 Qc7 9. f4 b6 10. Rf3 a5
1967 ROM Ch – Round 10 – Zara, Dan – 1-0 – Georgescu, Vasile-Maxim – G66 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Nbd2 c5 5. c3 Nc6 6. Bd3 b6 7. O-O Be7 8. Qe2 Qc7 9. e4 cxd4 10. e5 Nd7
1968 Lugano ol (Men) – Round ? – Romani, Elio – 1-0 – Benitez Diaz, Francisco Javier – G79 1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 Nc6 5. Bd3 e6 6. Nbd2 Be7 7. O-O O-O 8. Ne5 Qc7 9. f4 g6 10. g4 Ne8
GCT Rapid Paris 2016 – Round 4.2 – Kramnik, Vladimir – 0-1 – Vachier-Lagrave, Maxime – G17 1. Nf3 c5 2. e3 Nf6 3. d4 d5 4. c3 e6 5. Nbd2 Nc6 6. Bd3 Be7 7. O-O O-O 8. Ne5 Nd7 9. f4 f5 10. g4 Nf6

D05k —

1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3 Nc6 6.Nbd2

Eval: [+0.18]

Les coups candidats

6…Bd6 — 53.9% (2946 parties) →

Ambassadeurs : Catania, Duane (19x), Jeute, Volkmar Peter (19x), Pasta, Pietro (18x), Astasio Lopez, David (14x), Nittel, Christian (12x), Nickl, Klaus (11x), Smith, Douglas Royston (11x), Koellner, Ruben Gideon (10x)

6…Be7 — 19.8% (1084 parties)

Ambassadeurs : Colle, Edgar (7x), Specht, Maria (5x), Koltanowski, George (4x), Fels, Karl-Heinz (4x), Blaha, Petr (4x), Limberg, Siegfried (4x), Baudot, Denis (3x), Gagnon, Michel (3x)

6…Qc7 — 8.8% (479 parties)

Ambassadeurs : Colle, Edgar (5x), Blazquez Lopez, Berna (4x), Tartakower, Savielly (3x), Foltys, Jan (3x), Pelikian, Jefferson (3x), Specht, Maria (3x), Cenni, Giovanni (2x), Landau, Salo (2x)

6…cxd4 — 7.4% (407 parties)

Ambassadeurs : Colle, Edgar (3x), Wenske, Hardy (3x), Shamshin, Rudolf (2x), Molet, Asher (2x), Wuensch, Ulrich (2x), Marzaduri, Marco Roberto (2x), Gilg, Karl (1x), Palda, Karl (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Bd6	6…Be7	6…Qc7	6…cxd4
<1800	361	48%	19%	4%	12%
1800-2200	2464	52%	21%	8%	8%
2200-2600	1053	62%	17%	13%	3%
2600+	4	25%	50%	25%	—

Évolution par décennie (% des parties)

Décennie	N parties	6…Bd6	6…Be7	6…Qc7	6…cxd4
1890s	4	75%	25%	—	—
1900s	5	20%	20%	40%	—
1910s	9	44%	22%	—	11%
1920s	41	46%	29%	10%	10%
1930s	130	43%	20%	21%	10%
1940s	45	40%	13%	18%	16%
1950s	24	38%	33%	8%	8%
1960s	39	33%	36%	13%	13%
1970s	48	58%	21%	10%	—
1980s	132	52%	20%	8%	10%
1990s	935	49%	21%	8%	9%
2000s	1981	53%	20%	9%	7%
2010s	1800	59%	18%	7%	7%
2020s	277	55%	19%	10%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Bd6	59%	55%	▼ -3.8%
6…Be7	18%	19%	+0.5%
6…Qc7	7%	10%	▲ +2.7%
6…cxd4	7%	8%	▲ +0.9%

Joueurs célèbres

Champions du monde dans cette position

Lasker, Emanuel — 7 parties
Alekhine, Alexander — 4 parties
Euwe, Max — 2 parties
Kasparov, Garry — 1 partie
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

6…Bd6 — 53.9% (2946 parties)

1891 — Hanham, James vs Hodges, Albert — 0-1 — New York, NY USA
1892 — Lasker, Emanuel vs Baird, David Graham — 1-0 — New York, NY USA
1892 — Lasker, Emanuel vs Rumboll, Alfred — 1-0 — London ENG
1909 — Romanovsky, Pjotr vs Rotlewi, Georg — 0-1 — St Petersburg RUS
1913 — Chajes, Oscar vs Janowski, Dawid — 1/2-1/2 — New York, NY USA

6…Be7 — 19.8% (1084 parties)

1895 — Hanham, James vs Lord Frederick William — 1/2-1/2 — England
1905 — Romanovsky, Alexander Arsenievi vs Blumenfeld, Beniamin — 1-0 — St Petersburg RUS
1913 — Tenenwurzel, I. vs Capablanca, Jose — 0-1 — New York, NY USA
1916 — Jaffe, Charles vs Janowski, Dawid — 0-1 — New York, NY USA
1922 — Maroczy, Geza vs Olland, Adolf George — 1-0 — Utrecht NED

6…Qc7 — 8.8% (479 parties)

1905 — Caro, Horatio vs Lewitt, Moritz — 1-0 — Berlin GER
1907 — Forgacs, Laszlo vs Von Scheve, Theodor — 1-0 — Ostende II
1923 — Colle, Edgar vs Znosko-Borovsky, Eugene — 0-1 — Brussels BEL
1925 — Colle, Edgar vs Tarrasch, Siegbert — 1/2-1/2 — Baden-Baden GER
1926 — Colle, Edgar vs Yates, Frederic D — 1-0 — Budapest HUN

6…cxd4 — 7.4% (407 parties)

1913 — Morrison, John vs Zapoleon, LB. — 1-0 — New York, NY USA
1926 — Colle, Edgar vs Rosselli, Stefano — 1-0 — Meran ITA
1927 — Dus Chotimirsky, Fedor vs Romanovsky, Pjotr — 1/2-1/2 — Leningrad RUS
1929 — Nikolai Nikolaevich Riumin vs Poliak, Abram — 0-1 — Odessa ch-URS
1929 — Colle, Edgar vs Prokes, Ladislav — 1-0 — Budapest HUN

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