E28a — Nimzo-Indian: Saemisch, 5…O-O 6.e3

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte b4.

Atouts. Les Blancs s'appuient sur la case forte b4, la paire de fous et la colonne semi-ouverte b.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Le roi n'est pas encore à l'abri, plusieurs pièces dorment encore (le cavalier g1, les fous c1 et f1 et les tours a1 et h1) et le pion isolé a3.

Plans. Nf3 (Développer Ng1) ; Bd2 (Développer Bc1) ; Bd3 (Développer Bf1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

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

Côté adverse. Le pion isolé a3, les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...d6 (Libérer Bc8) ; ...Nc6 (Développer Nb8) ; ...c5 (Rupture) ; ...d5 (Rupture) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c3, ● c4	—
Pions isolés	● a3	—
Arriérés	—	—
Chaînes	● f2→e3, c3→d4, e3→d4	● d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b4 (2v0)	—
Cases faibles	—	—
Centre	● d4 (3v0), ● e5 (1v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	—

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	Non
Non développées	5 (● g1, ● c1, ● f1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c4-c5, ● d4-d5, ● e3-e4, ● f2-f3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
11th Sinquefield Cup 2024 - Round 3 - Nepomniachtchi, Ian - 1-0 - Giri, Anish - G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. f3 Nc6 8. e4 Qe8 9. h4 b6 10. h5 Ba6
1922 Teplitz-Schoenau – Round 5 – Rubinstein, Akiba – 1/2-1/2 – Gruenfeld, Ernst – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Nf3 Nbd7 8. Be2 c5 9. O-O Qc7 10. Nd2 e5
1944 Tbilisi – Round 1 – Kasparian, Genrikh – 1-0 – Shishov, Maxim Al – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Bg4 10. h3 Bxe2
1946 Moscow-Prague – Round 1 – Kotov, Alexander A – 1/2-1/2 – Pachman, Ludek – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Be6 10. Qb3 b6
1946 Prague – Round 1 – Kotov Lundqvist, Alex – 1/2-1/2 – O'Reilly, Edward – G12 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Be6 10. Qb3 b6
1947 Chigorin Memorial – Round ? – Kotov, Alexander. – 1-0 – Plater, Kazimierz – G84 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. f3 e5 8. e4 c5 9. Bd3 Nc6 10. Ne2 b6
1947 Moscow – Round 1 – Kotov Lundqvist, Alex – 1-0 – Plater, Kazimierz – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. f3 e5 8. e4 c5 9. Bd3 Nc6 10. Ne2 b6
1947 URS Ch, semi final – Round 12 – Kopylov, Nikita – 0-1 – Zhukhovitsky, Samuel – G70 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. f3 e4 9. fxe4 Nxe4 10. Nf3 Bf5
1948 Mar del Plata – Round 4 – Sanguinetti, Ricardo – 0-1 – Eliskases, Erich – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d5 7. cxd5 exd5 8. Bd3 b6 9. Ne2 Ba6 10. Bxa6 Nxa6
1948 New York – Round 3 – Najdorf, Miguel – 1-0 – Steiner, Heinrich Jun. – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Nc6 10. Ng3 Re8
1948 Saltsjobaden Interzonal – Round 6 – Ragozin, Viacheslav – 0-1 – Szabo, Laszlo – G49 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Nf3 Qe7 8. Be2 e5 9. c5 Bg4 10. O-O Nbd7
1948 World Championship 18th – Round 10 – Botvinnik, Mikhail – 1-0 – Keres, Paul – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 Re8 7. Ne2 e5 8. Ng3 d6 9. Be2 Nbd7 10. O-O c5
1949 Baarn – Round 1 – Kramer, Hanspeter – 0-1 – Euwe, Max – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. Ne2 b6 9. Ng3 Nc6 10. Bb2 Ba6
1949 Budapest-Moscow – Round 12 – Benko, Pal – 1/2-1/2 – Averbakh, Yuri L – G88 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. Ne2 e4 9. Bc2 Be6 10. Ng3 Bxc4
1949 Budapest-Moscow – Round 15 – Lilienthal, Andor – 1/2-1/2 – Szabo, Ladislav – G108 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Ne2 c5 8. Ng3 Nc6 9. Bd3 b6 10. O-O Ba6
1949 Mar del Plata – Round 7 – Blanco Cruz, Wara – 0-1 – Rossetto, Hector – G67 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 Qe7 8. Ne2 e5 9. O-O c5 10. Ng3 Nc6
1949 URS Ch, semi final – Round 10 – Kopaev, Nikolay A – 1/2-1/2 – Vistaneckis, Isakas – G73 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bc2 Be6 10. Ng3 Bxc4
1949 Venice – Round 9 – Gligorić, Svetozar – 1/2-1/2 – Cohen zimmerman, Arbel – G67 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. Ne2 Re8 9. O-O Nc6 10. Ng3 Qe7
1949 YUG-SUI m – Round 1 – Gligoric, Svetozar – 1-0 – Gygli, Fritz – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. e4 Qe7 9. f3 Nc6 10. Ne2 b6
1949 Zagreb ch-YUG – Round 12 – Avirovic, Djordje – 0-1 – Pirc, Vasja – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. f3 e5 8. e4 Nc6 9. Bg5 b6 10. Bd3 exd4
1950 Bled – Round 5 – Ivkov, Borislav – 1-0 – Pirc, Vasja – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. e4 Re8 9. f3 d5 10. cxd5 exd4
1950 Candidats Tournament – Round 10 – Kotov Lundqvist, Alex – 1/2-1/2 – Najdorf, Miguel – G41 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Ne2 e5 8. Ng3 Re8 9. f3 c5 10. e4 exd4
1950 Venice – Round 10 – Steiner, Heinrich Jun. – 1/2-1/2 – Pachman, Ludek – G83 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 b6 10. Ng3 Re8
1951 GER Ch 14th – Round 12 – Teschner, Rudolf – 1-0 – Niephaus, Walter – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Ne2 c5 8. Ng3 Nc6 9. Bd3 b6 10. O-O Ba6
1951 Schlechter Memorial – Round ? – Steiner, Herman – 1/2-1/2 – Beni, Alfred – G2 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. e4 Re8 9. f3 c5 10. d5 Nbd7
1951 YUG Ch 6th – Round 17 – Fuderer, Andrija – 1/2-1/2 – Simonovic, Borko – G96 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. e4 exd4 9. cxd4 Nxe4 10. Ne2 Re8
1952 Buenos Aires – Round 13 – Huguet, Horacio E – 0-1 – Foguelman – G65 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 Nc6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Na5 10. Ng3 Re8
1952 Moskou ch-URS – Round ? – Tolush, Alexander – 1-0 – Byvshev, Vasily – G159 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 Re8 7. Bd3 e5 8. Ne2 e4 9. Bb1 b6 10. Ng3 Nc6
1955 Poland ch13 – Round 16 – Kwapisz, Stanislaw – 0-1 – Pytlakowski, Andrzej – G54 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Be6 10. Qb3 b6
1955 Voros Lobogo – Round 2 – Sallay, Roland – 1-0 – Portisch, Lajos – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. f3 Nh5 9. g3 Re8 10. Qc2 Nf6
1958 HUN Ch 14th – Round 8 – Sallay, Roland – 0-1 – Portisch, Lajos – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. f3 e4 9. fxe4 Nxe4 10. Nf3 Bf5
1958 Portoroz Interzonal – Round 20 – Panno, Oscar – 1/2-1/2 – De Greif, Boris – G187 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 Qe7 7. Bd3 e5 8. Ne2 d6 9. O-O Nc6 10. Ng3 e4
1958 WchT U26 fin-A 05th – Round 6 – Lombardy, William J – 1-0 – Djurasevic, Bozidar – G61 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Nf3 Nc6 8. Bd3 e5 9. Nd2 Re8 10. O-O e4
1959 Krakow POL – Round ? – Gromek, Jozef – 0-1 – Sliwa, Bogdan – G15 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Be6 10. Qb3 b6
1960 Ljubljana – Round 5 – Damjanovic, Marko – 1-0 – Sofrevski, Jovan – G44 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Ne2 e5 8. Ng3 Re8 9. Be2 b6 10. O-O Bb7
1961 BRA Ch – Round 2 – Farias, Sergio A. B. Lopes de – 0-1 – Alves, Francisco H B Severino – G4 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 Nbd7 9. O-O Re8 10. Ng3 e4
1961 Budapest ch-HUN – Round 1 – Sallay, Oliver – 0-1 – Pogats, Jozsef Jr. – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Be6 10. Ng3 Bxc4
1961 Marianske Lazne zt – Round 11 – Ghitescu, Theodor – 0-1 – Gragger, Anton Fritz – G75 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 Be6 10. Qb3 b6
1961 Marianske Lazne zt – Round 5 – Perez Perez, Francisco Jose – 1-0 – Gragger, Anton Fritz – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bc2 Be6 10. d5 Bg4
1961 ROM Ch – Round 19 – Soos, Bela – 1-0 – Georgescu, Vasile Sr – G122 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. Ne2 e4 9. Bc2 Be6 10. Ng3 Bxc4
1961 Torremolinos – Round 11 – Abalde Perez, Fernando Jose – 0-1 – Portisch, Lajos – G46 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 c6 10. Ng3 Be6
1962 Olympiad Varna BUL – Round 6 – Akakinci, Kerem – 0-1 – Fuchs, Reinhart – G34 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. e4 Nc6 9. Ne2 b6 10. O-O Re8
1963 URS Spartakiad – Round 1 – Shamkovich, Leonid – 0-1 – Razuvaev, Yuri S – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Bd3 e5 8. Ne2 e4 9. Bc2 Be6 10. Ng3 Bxc4
1964 Malaga – Round 3 – Toran Albero, Roman – 1/2-1/2 – O'Kelly, Albéric de Galway – G12 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 d6 7. Bd3 e5 8. Ne2 e4 9. Bb1 c6 10. Ng3 Be6
1969 Hoogovens – Round 9 – Lombardy, William J – 1/2-1/2 – Benko, Pal – G71 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Ne2 e5 8. Ng3 e4 9. Be2 b6 10. O-O Bb7
FIDE World Cup 2025 – Round R1 Classical 1 – Agibileg Uurtsaikh – 1-0 – Cristobal Henriquez Villagra – G38 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 h6 7. Bh4 Bg4 8. Nf3 Nbd7 9. Be2 c6 10. O-O Bf5
WCh 2023 – Round 8.1 – Ding, Liren – 1/2-1/2 – Nepomniachtchi, Ian – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Ne2 c5 8. Ng3 Nc6 9. Ra2 b6 10. e4 Ba6
World Blitz 2023 – Round 20.34 – Ter-Sahakyan, Samvel – 0-1 – Matlakov, Maxim – G1144 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. Ne2 c5 8. Ng3 Nc6 9. Bd3 b6 10. O-O Ba6

E28a — Saemisch

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O 6.e3

Les coups candidats

6…c5 — 44.5% (633 parties) →

Ambassadeurs : Santos, Marcus Vinicius Moreira (7x), Moskalenko, Viktor (7x), Markotic, Gordan (6x), Shoshin, Kirill (6x), Vinot, Serge (5x), Pedersen, Nicolai Vesterbaek (5x), Mirzoev, Emil (5x), Eriksson, Johan (4x)

6…b6 — 20.2% (287 parties) →

Ambassadeurs : Vaisser, Anatoly (3x), Deze, Anton (3x), Chuchelov, Vladimir (3x), Popovic, Dj1 (3x), Toth, Bela (2x), Pachman, Ludek (2x), Armas, Jules (2x), Niklasson, Christer (2x)

6…d6 — 19.8% (282 parties)

Ambassadeurs : Kazhgaleyev, Murtas (4x), Lilienthal, Andor (3x), Euwe, Max (3x), Szabo, Laszlo (3x), Kotov Lundqvist, Alex (3x), Portisch, Lajos (3x), Shamkovich, Leonid (3x), Veingold, Aleksandr (3x)

6…d5 — 7.5% (107 parties)

Ambassadeurs : Markotic, Gordan (2x), Radocaj, Denis (2x), Zmarzly, Aleksandra (2x), Iljin, Timofey (2x), David, Alexandru (2x), Sanguinetti, Ricardo (1x), Eliskases, Erich (1x), Bogoljubow, Efim (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…c5	6…b6	6…d6	6…d5
<1800	22	41%	41%	5%	—
1800-2200	310	42%	25%	18%	10%
2200-2600	680	45%	21%	17%	7%
2600+	73	48%	12%	29%	5%

Évolution par décennie (% des parties)

Décennie	N parties	6…c5	6…b6	6…d6	6…d5
1920s	1	—	—	100%	—
1930s	4	—	—	50%	25%
1940s	39	26%	3%	56%	10%
1950s	67	42%	9%	37%	4%
1960s	49	51%	10%	27%	4%
1970s	35	23%	34%	14%	9%
1980s	81	49%	22%	16%	2%
1990s	144	49%	19%	20%	6%
2000s	317	53%	22%	13%	9%
2010s	363	43%	28%	13%	9%
2020s	324	40%	14%	26%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…c5	43%	40%	▼ -2.6%
6…b6	28%	14%	▼ -13.9%
6…d6	13%	26%	▲ +12.4%
6…d5	9%	7%	▼ -2.3%

Joueurs célèbres

Champions du monde dans cette position

Euwe, Max — 4 parties
Botvinnik, Mikhail — 2 parties
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Hou, Yifan — 1 partie
Gukesh D — 1 partie
Ding, Liren — 1 partie

Parties historiques

6…c5 — 44.5% (633 parties)

1941 — Durkin, Robert vs Bernstein, Sidney — 1/2-1/2 — Ventnor City
1943 — Hanauer, Anthony vs Shainswit, George — 1/2-1/2 — Ventnor City
1947 — Ufimtsev, Anatoly vs Keres, Paul — 0-1 — Leningrad ch-URS
1947 — Sajtar, Jaroslav vs Boutteville, Cesar — 1-0 — Paris FRA
1948 — Recoder, Jaume vs Perez Perez, Francisco Jose — 0-1 — Mataro

6…b6 — 20.2% (287 parties)

1949 — Sherwin, James T vs Rozen, Roman — 1-0 — New Jersey Nat.Inter
1950 — Steiner, Heinrich Jun. vs Vestol, Aage — 1-0 — Dubrovnik CRO
1952 — Hooper, David vs Euwe, Max — 0-1 — London ENG
1952 — Botvinnik, Mikhail vs Kan, Ilya A — 1/2-1/2 — ?
1954 — Balanel, Ion vs Pachman, Ludek — 0-1 — Prague zt Prague CZE

6…d6 — 19.8% (282 parties)

1922 — Rubinstein, Akiba vs Gruenfeld, Ernst — 1/2-1/2 — Teplitz-Schoenau GER
1931 — Rubinstein, Akiba vs Colle, Edgar — 0-1 — ?
1937 — Herrmann, Ludwig vs Kranki, Hans — 1-0 — Hamburg GER
1944 — Kasparian, Genrikh vs Shishov, Maxim Al — 1-0 — Tbilisi GEO
1946 — Kotov, Alexander vs Pachman, Ludek — 1/2-1/2 — Moscow RUS

6…d5 — 7.5% (107 parties)

1936 — Bogoljubow, Efim vs Reshevsky, Samuel — 0-1 — Nottingham ENG
1946 — Lilienthal, Andor vs Dake, Arthur William — 1/2-1/2 — Moscow USSR-USA
1948 — Sanguinetti, Ricardo vs Eliskases, Erich — 0-1 — Mar del Plata ARG
1948 — Steiner, Heinrich Jun. vs Kashdan, Isaac — 0-1 — New York, NY USA
1949 — Kramer, Hanspeter vs De Lange, Abigaelle — 1-0 — Baarn NED