A13s — English: Neo-Catalan, 4…c6 5.b3

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 c6 5.b3 ● Trait aux Noirs

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 (le cavalier b1, le fou c1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nc3 (Développer Nb1) ; d3 (Libérer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte e4 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2 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) ; ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4, ...Bf5)) ; ...Nbd7 (Développer Nb8) ; ...Be7 (Développer Bf8) ; ...Bg4 (Clouer Nf3).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● c6→d5, e6→d5, b7→c6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● e4 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (1v0)	● d5 (4v1), ● e4 (2v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bg2	● Bg2 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (b1, c1, 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, ● d2-d3, ● e2-e3	● …c6-c5, ● …d5-d4, ● …e6-e5

Partie
1923 Vienna – Round 3 – Gruber, Theo – 0-1 – Takacs, Sandor – G16 1. Nf3 Nf6 2. g3 c6 3. Bg2 d5 4. c4 e6 5. b3 Be7 6. Bb2 O-O 7. O-O Nbd7 8. d3 b6 9. Nbd2 Bb7 10. Ne5 c5
1923 Vienna – Round 4 – Takacs, Sandor – 0-1 – Becker Griesbeck, Achille – G17 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 c6 5. b3 Be7 6. Bb2 O-O 7. O-O b6 8. Qc2 Bb7 9. cxd5 cxd5 10. Nc3 Nbd7
1923 Vienna – Round 9 – Reti, Richard – 1-0 – Fischer Martinez, Fabian Andres – G47 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Be7 7. O-O O-O 8. d3 b6 9. Nbd2 Bb7 10. Rc1 Rc8
1924 New York – Round 1 – Reti, Richard – 1-0 – Lasker, Edward – G57 1. Nf3 d5 2. c4 e6 3. g3 c6 4. b3 Nf6 5. Bg2 Ne4 6. Qc2 Be7 7. Bb2 O-O 8. O-O Nd7 9. d3 Ng5 10. Nbd2 Nxf3+
1925 Montevideo – Round 3 – Villegas, Benito – 1-0 – Da Cunha, Edmundo Gastao – G15 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 c6 5. b3 Be7 6. Bb2 Nbd7 7. d3 b6 8. Nbd2 Bb7 9. O-O O-O 10. e4 dxe4
1926 Budapest Budapest HUN – Round 10 – Reti, Richard – 1-0 – Vajda, Arpad – G19 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c6 5. b3 Be7 6. Bb2 a5 7. Qc2 a4 8. bxa4 Na6 9. cxd5 exd5 10. Nd4 Nb4
1926 Semmering – Round 1 – Reti, Richard – 0-1 – Vajda, Albert – G4 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. O-O O-O 8. d4 Ne4 9. Nbd2 f5 10. Nxe4 fxe4
1927 Amsterdam – Round 1 – Euwe, Max – 1-0 – Davidson Gallego, Jorge – G11 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. d4 O-O 8. O-O Qc7 9. Nc3 b6 10. Rc1 dxc4
1929 Budapest – Round 1 – Vajda, Arpad – 1/2-1/2 – Monticelli, Mario – G60 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Bd6 7. O-O Qe7 8. d3 O-O 9. Qc2 Re8 10. Nc3 Ba3
1930 Hamburg GER – Round ? – Lokvenc, Josef – 1-0 – Stoltz, Gosta – G38 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. d4 O-O 8. O-O b6 9. Nc3 Ba6 10. Nd2 Rc8
1930 Hamburg GER – Round ? – Lokvenc, Josef – 1-0 – Stolz, Bernhard – G37 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. d4 O-O 8. O-O b6 9. Nc3 Ba6 10. Nd2 Rc8
1930 Hamburg olm – Round 1 – Lokvenc, Josef – 1-0 – Stoltz, Gabriel – G55 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. d4 O-O 8. O-O b6 9. Nc3 Ba6 10. Nd2 Rc8
1935 Warsaw ol – Round ? – Alexander, Conol Hugh – 0-1 – Vistaneckis, Isakas – G42 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. d3 e5 8. Qc2 O-O 9. e4 dxe4 10. dxe4 Qe7
1937 BCF Ch 30th – Round 9 – Lenton, Alfred – 1-0 – Atkins, Henry Ernest – G26 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Bd6 6. Bb2 Qe7 7. d4 O-O 8. O-O Nbd7 9. Ne5 Rd8 10. Qd3 c5
1939 Buenos Aires ol f-B – Round 2 – Neikirkh, Oleg – 1-0 – Kjaer Larsen, Maximillian C – G9 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Qb6 7. Qc2 Be7 8. O-O O-O 9. d3 Re8 10. e4 dxc4
1943 Prague – Round 4 – Thelen, Bedrich – 1-0 – Kubanek, Jindrich – G33 1. Nf3 e6 2. c4 d5 3. g3 Nf6 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Bd6 7. d4 Qe7 8. O-O O-O 9. Ne5 dxc4 10. Nxc4 Bc7
1944 Gijon – Round ? – Alekhine, Alexander – 1-0 – Abril Rico, Cristian – G19 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. d4 b6 8. O-O Ne4 9. Ne5 Bxe5 10. dxe5 Nec5
1944 Gijon – Round ? – Alekhine, Alexander – 1-0 – Aguilar Rico, Adolfo – G18 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. d4 b6 8. O-O Ne4 9. Ne5 Bxe5 10. dxe5 Nec5
1948 Buenos Aires/La Plata it – Round 1 – Rossetto, Hector – 1/2-1/2 – Najdorf, Miguel – G1 1. c4 Nf6 2. Nf3 c6 3. g3 d5 4. b3 e6 5. Bg2 Bd6 6. Bb2 Qe7 7. d4 Nbd7 8. O-O O-O 9. Nbd2 Ba3 10. Qc1 Bxb2
1951 Buenos Aires – Round 1 – De Piro, Tristram – 0-1 – Shocron, Ruben – G29 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Be7 6. Bb2 O-O 7. O-O a5 8. d3 a4 9. Qc1 Nbd7 10. d4 b5
1952 Helsinki olm – Round 1 – Heinicke, Herbert – 0-1 – Rossetto, Hector Decio – G6 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 c6 5. b3 Nbd7 6. Bb2 Bc5 7. O-O O-O 8. d4 Be7 9. Qc2 b6 10. Nbd2 Bb7
1952 Tatranska ch CZE – Round 8 – Sajtar, Jaroslav – 1-0 – Potucek, Ludovit – G23 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. c4 e6 5. b3 Be7 6. Bb2 O-O 7. O-O b6 8. Qc2 Bb7 9. d3 a5 10. e4 Na6
1955 Hungary – Round 1 – Barcza, Gedeon – 1/2-1/2 – Bronstein, David I – G4 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. c4 e6 5. b3 a5 6. O-O a4 7. Ba3 Bxa3 8. Nxa3 Qe7 9. Qc1 O-O 10. Qb2 Nbd7
1957 HUN Ch 12th – Round ? – Koberl, Ferenc – 0-1 – Szilagyi, Gyorgy Laszlo – G5 1. c4 Nf6 2. g3 e6 3. Nf3 d5 4. b3 c6 5. Bg2 a5 6. O-O a4 7. Bb2 Nbd7 8. d3 Be7 9. e4 O-O 10. e5 Ne8
1957 Mar del Plata – Round 3 – Sanguineti, Raúl Carlos – 0-1 – Alonso-Lej De Las Casas, Fernando – G35 1. c4 Nf6 2. g3 c6 3. b3 d5 4. Nf3 e6 5. Bg2 Be7 6. Bb2 O-O 7. O-O a5 8. Nc3 d4 9. Na4 c5 10. e3 Nc6
1957 WchT U26 04th – Round 12.3 – Navarovszky, Laszlo – 1/2-1/2 – Davis, Edward – G156 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 c6 5. b3 Nbd7 6. O-O Bd6 7. Ba3 Qe7 8. Qc1 O-O 9. d3 dxc4 10. bxc4 Nc5
1958 HUN Ch 13th – Round 17 – Koberl, Ferenc – 0-1 – Varnusz, Egon – G142 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 c6 5. b3 Nbd7 6. O-O a5 7. Nc3 Bd6 8. d4 Qe7 9. Qc2 dxc4 10. bxc4 O-O
1958 Portoroz Interzonal – Round 11 – Sherwin, James T – 1-0 – Fuster, Geza – G98 1. c4 c6 2. Nf3 Nf6 3. g3 d5 4. Bg2 e6 5. b3 a5 6. Bb2 a4 7. Na3 Nbd7 8. O-O Be7 9. d3 O-O 10. Nc2 Qb6
1958 Portoroz Interzonal – Round 9 – Olafsson, Fridrik – 0-1 – Rossetto, Hector – G87 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. O-O Be7 7. Qc2 O-O 8. Bb2 a5 9. Nc3 Nb6 10. d3 a4
1958 Sarajevo Sarajevo BIH – Round 1 – Eliskases, Erich – 1/2-1/2 – Kozomara, Vlado – G45 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Be7 7. O-O O-O 8. Qc2 b6 9. d3 Bb7 10. e4 c5
1959 HUN Ch Budapest HUN – Round 8 – Orendy, Emil – 1/2-1/2 – Szily, Jozsef – G36 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. c4 e6 5. b3 Nbd7 6. O-O b5 7. cxb5 cxb5 8. Bb2 Be7 9. d3 O-O 10. Nbd2 Bb7
1961 Budapest ch-HUN – Round 1 – Flesch, Jean-benoit – 1/2-1/2 – Sallay, Roland – G109 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c6 5. b3 Be7 6. O-O O-O 7. Bb2 b5 8. d3 a5 9. a3 Ba6 10. Nbd2 Nbd7
1961 Budapest ch-HUN – Round 1 – Portisch, Lajos – 1-0 – Sallay, Roland – G9 1. c4 e6 2. Nf3 d5 3. g3 c6 4. b3 Nf6 5. Bg2 Nbd7 6. Bb2 Be7 7. O-O O-O 8. d3 b6 9. Nbd2 Bb7 10. Qc2 c5
1963 YMCA – Round 5 – Bianco Esposito, Antonio – 1/2-1/2 – Panno, Oscar – G8 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 c6 5. b3 a5 6. O-O Be7 7. d4 a4 8. Ba3 Nbd7 9. Bxe7 Qxe7 10. Nc3 Qb4
1964 ARG Ch – Round 6 – Najdorf, Miguel – 1-0 – Wexler, Bernardo – G23 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Be7 7. O-O O-O 8. d3 b6 9. Qc2 Bb7 10. e4 c5
1964 Tel Aviv olm prel – Round 1 – Garcia Rodriguez, Raimundo – 1/2-1/2 – Moritz, Bruno – G38 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c6 5. b3 Nbd7 6. O-O Bd6 7. Bb2 O-O 8. d4 Qe7 9. Nbd2 Rd8 10. Qc2 Ba3
1965 Buenos Aires – Round 1 – Garcia Rodriguez, Raimundo – 1-0 – Reinhardt, Enrique – G17 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Bd6 6. Bb2 Nbd7 7. O-O O-O 8. d4 Qe7 9. Nbd2 Ba3 10. Bxa3 Qxa3
1965 EU Ch U20 Niemeyer 3rd – Round 9 – Ree, Hans – 1-0 – Hoelzl, Franz – G8 1. c4 e6 2. Nf3 d5 3. g3 c6 4. b3 Nf6 5. Bg2 Be7 6. O-O O-O 7. Bb2 Nbd7 8. Qc2 Bd6 9. d4 Ne4 10. Ne5 f5
1966 US Open – Round 6 – Kenney, Matt – 1/2-1/2 – Zalys, Ignas – G40 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Bd6 7. d4 Ne4 8. O-O f5 9. cxd5 exd5 10. Nbd2 Qe7
1967 Hoogovens – Round 12 – Ree, Hans – 0-1 – Donner, Jan-Hein – G86 1. Nf3 d5 2. c4 c6 3. b3 e6 4. g3 Nf6 5. Bg2 Be7 6. O-O O-O 7. Bb2 Nbd7 8. Qc2 a5 9. Nc3 b6 10. cxd5 cxd5
1968 Lugano ol (Men) fin-C – Round 1 – Rizopoulos, Georgios – 0-1 – Primavera, Giuseppe – G18 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c6 5. b3 Be7 6. Bb2 Nbd7 7. O-O O-O 8. Qc2 Rb8 9. d4 Ne4 10. Nfd2 f5
1968 New York ch-USA – Round 2 – Lombardy, William J – 1/2-1/2 – Reshevsky, Samuel – G12 1. g3 Nf6 2. Bg2 d5 3. c4 c6 4. Nf3 e6 5. b3 Be7 6. O-O O-O 7. Bb2 Nbd7 8. d3 b6 9. Nbd2 Bb7 10. Qc2 a5
1968 New York ch-USA – Round 9 – Benko, Pal – 1-0 – Horowitz, Albert Israel – G47 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. g3 e6 5. Bg2 Be7 6. O-O O-O 7. Bb2 a5 8. a3 c5 9. cxd5 exd5 10. d4 Na6
1968 USA Open – Round 1 – Benko, Pal – 1/2-1/2 – Sherwin, James T – G3 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. b3 c6 5. Bg2 a5 6. O-O a4 7. Ba3 Bxa3 8. Nxa3 O-O 9. Qc1 Qe7 10. d4 Na6
1972 Skopje ol (Men) fin-A – Round 13 – Filip, Marius Liviu – 1-0 – Liljedahl, Lars – G80 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 c6 5. b3 Nbd7 6. Bb2 Bd6 7. O-O O-O 8. Qc2 Qe7 9. Nc3 Ba3 10. Bxa3 Qxa3
41. Olympiad Open 2014 – Round 9.33 – Amin, Bassem – 1-0 – Almeyda Guevara, Camila – G651 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. c4 e6 5. b3 Nbd7 6. Bb2 Bd6 7. O-O O-O 8. d3 Qe7 9. a3 Re8 10. Nc3 Nf8
57. ch-RUS 2004 – Round 8 – Korotylev, Alexey – 1-0 – Timofeev, Artyom – G28 1. c4 e6 2. Nf3 d5 3. g3 c6 4. b3 Nf6 5. Bg2 a5 6. Bb2 a4 7. Na3 Be7 8. O-O O-O 9. d3 Qb6 10. d4 Nbd7
Biel Interzonal 1993 – Round 12 – Agdestein, Simen – 1/2-1/2 – Nogueiras Santiago, Jesus – G258 1. c4 e6 2. g3 d5 3. Bg2 c6 4. Nf3 Nf6 5. b3 a5 6. O-O a4 7. Na3 Be7 8. Bb2 O-O 9. d4 b6 10. Ne5 Bb7
PCA Qualifiers 1993 – Round 1 – Gurevich, Mikhail – 0-1 – Bareev, Evgeny – G2 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 c6 5. b3 a5 6. O-O a4 7. Na3 Bd6 8. d4 axb3 9. axb3 b6 10. Bb2 Bb7

A13s — Neo-Catalan, 4…c6 5.b3

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 c6 5.b3

Eval: [+0.24]

Les coups candidats

5…Nbd7 — 34.0% (1005 parties)

Ambassadeurs : Pohjala, Henri (5x), Cosma, Elena-Luminita (4x), Sunye Neto, Jaime (4x), Heinicke, Herbert (3x), Borm, Frans (3x), Szmetan, Jorge (3x), Ruck, Robert (3x), Raicevic, Momcilo (3x)

5…Be7 — 30.9% (913 parties)

Ambassadeurs : Czech, Ludwig (4x), Semkov, Semko (3x), Kotan, Ladislav (3x), Schwertel, Johann (3x), Fernandez Manrique, Agustin (3x), Giacometto, Mario (3x), Trauth, Michael, Dr. (3x), Schreiber, Kurt (3x)

5…Bd6 — 21.3% (629 parties)

Ambassadeurs : Alekhine, Alexander (3x), Euwe, Max (3x), Lokvenc, Josef (3x), Gerstner, Wolfgang (3x), Reinhardt, Enrique (2x), Fahnenschmidt, Gerhard (2x), Schneider, Henning (2x), Olarasu, Iuliana (2x)

5…a5 — 4.1% (122 parties)

Ambassadeurs : Jonkman, Harmen (3x), Novkovic, Milan (3x), Sherwin, James T (2x), Bronstein, David I (2x), Szilagyi, Gyorgy Laszlo (2x), Boehnisch, Manfred (2x), Cifuentes Parada, Roberto (2x), Savic, Miodrag R (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…Nbd7	5…Be7	5…Bd6	5…a5
<1800	121	24%	38%	25%	—
1800-2200	1385	34%	33%	21%	2%
2200-2600	948	37%	27%	21%	9%
2600+	9	11%	56%	—	33%

Évolution par décennie (% des parties)

Décennie	N parties	5…Nbd7	5…Be7	5…Bd6	5…a5
1920s	19	21%	32%	32%	5%
1930s	15	33%	7%	47%	—
1940s	16	31%	19%	44%	—
1950s	29	48%	21%	7%	14%
1960s	30	23%	47%	10%	10%
1970s	47	30%	40%	6%	9%
1980s	106	36%	30%	11%	6%
1990s	520	31%	29%	24%	6%
2000s	857	35%	29%	22%	4%
2010s	1107	36%	33%	21%	3%
2020s	207	32%	34%	24%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…Nbd7	36%	32%	▼ -3.2%
5…Be7	33%	34%	▲ +1.8%
5…Bd6	21%	24%	▲ +3.6%
5…a5	3%	3%	▲ +0.6%

Joueurs célèbres

Champions du monde dans cette position

Alekhine, Alexander — 3 parties
Euwe, Max — 3 parties
Ju, Wenjun — 2 parties
Smyslov, Vladimir — 1 partie

Parties historiques

5…Nbd7 — 34.0% (1005 parties)

1923 — Reti, Richard vs Fischer Martinez, Fabian Andres — 1-0 — Vienna AUT
1927 — Gruber, Theodor vs Wolf, Siegfried — 1/2-1/2 — Vienna AUT
1929 — Vajda, Arpad vs Monticelli, Mario — 1/2-1/2 — Budapest HUN
1929 — Vecsey, Zoltan vs Lustig, Felix — 1/2-1/2 — Prague CZE
1930 — Koshnitsky, Gregory vs Amadio, HH. — 1-0 — Sydney AUS

5…Be7 — 30.9% (913 parties)

1923 — Takacs, Sandor vs Becker Griesbeck, Achille — 0-1 — Vienna AUT
1923 — Gruber, Theo vs Takacs, Sandor — 0-1 — Vienna AUT
1924 — Beffie, Bernard vs Boer, Adriaan — 1-0 — NED
1925 — Villegas, Benito vs Da Cunha, Edmundo Gastao — 1-0 — Montevideo URU
1925 — Kevitz, Alexander vs Tholfsen, Erling — 1/2-1/2 — New York, NY USA

5…Bd6 — 21.3% (629 parties)

1924 — Euwe, Max vs Olland, Adolf George — 1-0 — NED
1926 — Reti, Richard vs Vajda, Albert — 0-1 — Semmering AUT
1927 — Nogues Acuna, Alejandro vs Vilardebo, Jose — 1-0 — London ENG
1927 — Euwe, Max vs Davidson Gallego, Jorge — 1-0 — Amsterdam NED
1927 — Euwe, Max vs Davidson, Jacques — 1-0 — Amsterdam NED

5…a5 — 4.1% (122 parties)

1925 — Rabinovich, Abram vs Dus Chotimirsky, Fedor — 0-1 — Moscow RUS
1955 — Barcza, Gedeon vs Bronstein, David I — 1/2-1/2 — Budapest HUN
1957 — Koberl, Ferenc vs Szilagyi, Gyorgy Laszlo — 0-1 — Budapest HUN
1957 — Bilek, Istvan vs Szilagyi, Gyorgy Laszlo — 1/2-1/2 — Budapest HUN
1958 — Sherwin, James T vs Fuster, Geza — 1-0 — Portoroz SLO

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