A28e — English: Four Knights, 4.d4

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d4 * ● Trait aux Noirs

Ouverture — Tension centrale

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes b5, d5 et g5 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 (les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; e4 (Centre d4+e4, menace e5, libère Bf1) ; Bg5 (Clouer Nf6) ; 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 b4 et 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 (les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...Be7 (Développer Bf8) ; ...Bg4 (Clouer Nf3) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (2v1), ● g5 (2v0)	● b4 (2v0)
Cases faibles	● d4	● e5
Centre	● d5 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 0)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (c1, f1, 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	tension
Ruptures	● c4-c5, ● d4-d5, ● e2-e3	● …d7-d6, ● …d7-d5, ● …e5-e4

Partie
1925 Baden-Baden – Round 11 – Tartakower, Savielly – 0-1 – Bogoljubow, Efim – G130 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. e3 O-O 7. Be2 Ne7 8. O-O d6 9. Na4 Bxd4 10. exd4 Re8
1925 Bratislava-A – Round 4 – Réti, Richard – 1-0 – Schulz, Jan Sr – G9 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Ne4 7. Qd3 Nxc3 8. bxc3 Ba5 9. Nb3 Qf6 10. Nxa5 Nxa5
1925 DSB-24.Kongress – Round 5 – Reti, Richard – 1-0 – Moritz, Bruno – G15 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 d6 7. Nxc6 bxc6 8. Bg2 d5 9. Qa4 Bxc3+ 10. bxc3 Bd7
1925 Marienbad – Round 9 – Reti, Richard – 1-0 – Przepiorka, Dawid – G55 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 d5 8. Bg2 Be6 9. O-O O-O 10. Qa4 Bd7
1925 Moscow – Round 1 – Reti, Richard – 1-0 – Bohatyrchuk, Fedir Parfenovych – G5 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Ne5 7. Qa4 Bc5 8. Be3 Bxd4 9. Bxd4 Qe7 10. Bg2 O-O
1925 Moscow – Round 1 – Reti, Richard – 1-0 – Rabinovich, Ilya Mar – G2 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. g3 O-O 7. Bg2 d5 8. Nxc6 bxc6 9. O-O Bxc3 10. bxc3 Ba6
1925 Moscow – Round 1 – Tartakower, Savielly – 1/2-1/2 – Ilyin Zhenevsky, Alexander – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 d6 6. g3 Be7 7. Bg2 Bd7 8. O-O O-O 9. b3 Nxd4 10. Qxd4 Bc6
1926 Budapest – Round 11 – Takacs, Sandor – 1-0 – Monticelli, Mario – G59 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Ne4 7. Qd3 Qe7 8. Bg2 Nxf2 9. Kxf2 Ne5 10. Qe4 f5
1926 Budapest – Round 13 – Takacs, Sandor – 1/2-1/2 – Colle, Edgar – G72 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. g3 O-O 7. Bg2 Re8 8. O-O Nxd4 9. Qxd4 Bxc3 10. bxc3 a5
1926 Hannover – Round 4 – Rubinstein, Akiba – 1-0 – Mieses, Jacques – G11 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 d5 8. Bg2 O-O 9. O-O Ba6 10. cxd5 cxd5
1926 Hastings Premier /27 7th – Round 1 – Thomas, George Alan – 0-1 – Michell, Reginald – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Qc2 O-O 8. e3 d5 9. Be2 Ne4 10. O-O Bxc3
1926 Semmering – Round ? – Alekhine, Alexander – 1-0 – Yates, Frederic D – G126 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. Rc1 Re8 8. e3 d6 9. Be2 Ne5 10. O-O Bxc3
1926 Semmering – Round 1 – Reti, Richard – 1-0 – Janowski, Dawid – G3 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 O-O 8. Bg2 Re8 9. O-O Rb8 10. b3 Bb7
1927 Kecskemet II – Round 2 – Vukovic, Vladimir – 0-1 – Steiner, Lajos – G5 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Ne5 7. Nf5 O-O 8. Ne3 Ne4 9. Qc2 Nxc3 10. bxc3 Bc5
1927 London olm – Round 7 – Kostic, Boris – 1-0 – Krause, Orla Hermann – G30 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 d6 10. Be2 O-O
1927 London Olympiad 1st – Round 10.73 – Carls, Carl – 1-0 – Kroone, Gerard – G110 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 O-O 7. Bg2 d5 8. O-O Bxc3 9. bxc3 Ne5 10. cxd5 Nxd5
1927 London Olympiad 1st – Round 2.71 – Reti, Richard – 1-0 – Nilsson, Allan – G19 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. g3 O-O 8. Bg2 d5 9. O-O Bxc3 10. bxc3 Be6
1927 London Olympiad 1st – Round 6.51 – Reti, Richard – 1/2-1/2 – Euwe, Max – G62 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. e3 O-O 9. Be2 Ng6 10. Bg3 Ne4
1927 Magdeburg Kongress – Round 1 – Machate, Gottlieb – 1-0 – Ahues, Carl – G1 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 O-O 8. Bg2 Re8 9. O-O Rb8 10. a3 Bf8
1928 The Hague – Round 16 – Muller, Hans P – 1-0 – Duchamp, Marcel – G19 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne4 8. Bxd8 Nxc3 9. Nxc6 Nxd1+ 10. Nxb4 1-0
1928 Vienna – Round 13 – Muller, Hans P – 1-0 – Wolf, Siegfried – G73 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 Be7 7. g3 O-O 8. Bg2 c6 9. O-O d6 10. b3 Ne8
1929 Barcelona Barcelona ESP – Round 8 – Monticelli, Mario – 1-0 – Font Alvelo, Joaquim – G21 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Ne4 7. Qd3 Qe7 8. Bg2 Nc5 9. Qd1 Ne5 10. O-O Bxc3
1929 Budapest – Round 1 – Joyeux Steiner, Gael – 1-0 – Havasi, Kornel – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. g3 Qe7 8. Bg2 Qc5 9. Qd3 Ba6 10. b3 Qe5
1929 Hastings Premier 1928/29 9th – Round 7 – Takacs, Sandor – 0-1 – Colle, Edgar – G6 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Bxc3+ 7. bxc3 Ne5 8. e4 d6 9. f4 Ned7 10. Bg2 O-O
1930 Frankfurt – Round 4 – Pirc, Vasja – 1/2-1/2 – Saemisch, Friedrich – G17 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. e3 Re8 8. Be2 h6 9. Bh4 Bxc3+ 10. bxc3 Ne5
1931 Argentina – Round 13 – Nogues Acuna, Alejandro – 0-1 – Piazzini, Luis – G45 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 d6 7. Nxc6 bxc6 8. Bd2 O-O 9. Bg2 d5 10. Qa4 Rb8
1931 Bled – Round ? – Kostic, Boris – 0-1 – Colle, Edgar – G155 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 d6 8. e3 Bxc3+ 9. bxc3 Bd7 10. Be2 Ne5
1931 Budapest – Round 10 – Steiner, Endre – 1-0 – Szigeti, Miklos – G55 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd2 O-O 8. g3 Qe7 9. Bg2 Ba6 10. b3 d5
1931 SUI ch 35rd – Round 6.1 – Gygli, Fritz – 0-1 – Henneberger, Walter – G11 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Qe7 7. Nb5 Ba5 8. Bd2 a6 9. Na3 d6 10. Nd5 Nxd5
1933 Folkestone olm – Round 12.3 – De Winter Gallegos, Willy – 1-0 – Gemzoe, Jacob – G13 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 O-O 8. Rc1 Ne5 9. e3 Ng6 10. Bg3 Ne4
1933 Folkestone Olympiad 5th – Round 3.25 – Apscheneek, Fricis – 1/2-1/2 – Fairhurst, William – G29 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 d5 8. Bg2 d4 9. Na4 Bb4+ 10. Bd2 Rb8
1934 BCF Ch 27th – Round 1 – Golombek, Harry – 1/2-1/2 – Abrahams, Gerald – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 d5 6. cxd5 Nxd5 7. Nxc6 bxc6 8. e4 Nxc3 9. Qxd8+ Kxd8 10. bxc3 Bd6
1934 BCF Ch 27th – Round 5 – Golombek, Harry – 1/2-1/2 – Thomas, George Alan – G23 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 d6 6. Nxc6 bxc6 7. g3 Bd7 8. Bg2 Qb8 9. O-O Be7 10. Qa4 Qb6
1934 Leningrad – Round 1 – Levenfish, Grigory – 1/2-1/2 – Botvinnik, Mikhail – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 Ng6 10. Bg3 Ne4
1934 Leningrad ch-URS – Round 1 – Mazel, Isaak Y – 0-1 – Levenfish, Grigory – G2 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. e3 O-O 8. Bd3 d5 9. O-O Be6 10. Qe2 Re8
1934 Ujpest – Round 1 – Flohr, Salo – 1-0 – Joyeux Steiner, Gael – G5 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 Ne5 8. e4 h6 9. Bxf6 Qxf6 10. Be2 Qg6
1934 Zuerich – Round 1 – Flohr, Salo – 1-0 – Johner, Hans – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. Rc1 Re8 8. e3 Ne5 9. Be2 h6 10. Bh4 Ng6
1935 Barcelona – Round 1 – Flohr, Salo – 1-0 – Koltanowski, George – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 h6 8. Bc1 O-O 9. e3 Qe7 10. Be2 Ne4
1935 BCF Ch 28th – Round 7 – Golombek, Harry – 1-0 – Cole, Henry Holwell – G16 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 Be7 7. g3 O-O 8. Bg2 c6 9. O-O d6 10. Rd1 Qa5
1935 Buenos Aires – Round 3 – Vinuesa, Juan – 1-0 – Hounie Fleurquin, Carlos – G49 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Ne4 7. Bxd8 Nxc3 8. Nxc6 Nxd1+ 9. Nxb4 Nxf2 10. Kxf2 Kxd8
1935 Hastings3536 – Round 1 – Alexander, Conol Hugh – 1/2-1/2 – Michell, Reginald – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd2 O-O 8. g3 d5 9. Bg2 Be6 10. Qa4 Rb8
1935 Hastings3536 – Round 6 – Golombek, Harry – 0-1 – Flohr, Salo – G26 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 Bxc3+ 7. bxc3 dxc6 8. Qd4 Qe7 9. Bg5 O-O 10. Bxf6 gxf6
1935 Moscow – Round 12 – Botvinnik, Mikhail – 1/2-1/2 – Pirc, Vasja – G53 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. f3 O-O 10. e4 Ne5
1935 Moskou – Round 1 – Botvinnik, Mikhail – 1/2-1/2 – Pirc, Vasja – G3 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. f3 O-O 10. e4 Ne5
1935 Warsaw ol (Men) – Round 10.4 – Golombek, Harry – 1/2-1/2 – Sorensen, Ernst Leismann – G18 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Nxc6 bxc6 8. Bh4 O-O 9. e3 Bxc3+ 10. bxc3 c5
1935 Warsaw ol Warsaw POL – Round 3 – Tartakower, Savielly – 1-0 – Keres, Paul Petrovich – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. Qb3 Bxc3+ 9. Qxc3 Ng6 10. Qe3+ Kf8
1935 Warsaw olm – Round 12 – Golombek, Harry – 1-0 – Krogius, Ragnar – G41 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Be7 6. e4 O-O 7. Be2 Bb4 8. f3 d6 9. Be3 Qe7 10. Qd2 Ne5
1935 Warsaw olm – Round 16 – Golombek, Harry – 0-1 – Popa, Teodor – G62 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 d6 6. Nxc6 bxc6 7. g3 Be7 8. Bg2 Qd7 9. Qd4 Bb7 10. O-O O-O
1936 Dresden – Round 6 – Engels, Ludwig – 1/2-1/2 – Saemisch, Friedrich – G29 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. g3 O-O 7. Bg2 Re8 8. O-O Bxc3 9. bxc3 Ne5 10. Qb3 d6
1936 Mar del Plata – Round 9 – Pleci, Isaias – 1-0 – Letelier Martner, Rene – G62 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 d6 8. f3 h6 9. Bh4 Ne5 10. e4 Qe7
1936 Margate Premier Reserves A – Round 1 – Del Valle Domenech, Rafael – 0-1 – Koltanowski, George – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bc1 Bxc3+ 8. bxc3 O-O 9. e3 d6 10. Be2 Qe7
1936 Margate Premier Reserves A – Round 6 – Podger, Charles Vincent – 1-0 – Koltanowski, George – G5 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Bxc3+ 7. bxc3 Ne5 8. Qa4 O-O 9. Bg2 d5 10. cxd5 Nxd5
1936 Munich ol (Men) – Round 20 – Danchev, Dancho – 0-1 – Steiner, Endre – G42 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. e3 O-O 7. Be2 Bxc3+ 8. bxc3 d6 9. O-O Qe7 10. Rb1 Ne5
1936 New York ch-USA – Round 6 – Hanauer, Milton Loeb – 0-1 – Reshevsky, Samuel – G15 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 O-O 10. Be2 Ng6
1937 GER Ch 4th – Round 11 – Schmitt, Ludwig – 0-1 – Michel, Paul – G14 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nc2 Bxc3+ 7. bxc3 d5 8. e3 Be6 9. cxd5 Nxd5 10. c4 Ndb4
1937 Prague – Round 6 – Foltys, Jan – 1/2-1/2 – Trifunovic, Petar – G31 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 Ng6 10. Bg3 d6
1937 Tbilisi ch-URS – Round ? – Ragozin, Viacheslav – 1-0 – Lilienthal, Andor – G161 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. g3 Qe7 8. Bg2 O-O 9. O-O Bxc3 10. bxc3 Re8
1938 New York m ch-USA – Round 6 – Horowitz, Albert Israel – 1/2-1/2 – Kashdan, Isaac – G7 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. e3 O-O 7. Be2 Ne4 8. Qc2 Re8 9. O-O Nxc3 10. bxc3 Bf8
1939 Buenos Aires ol f-B – Round 5 – Baender, Paul – 0-1 – Yanofsky, Daniel Abraham – G16 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Ne4 7. Qd3 d5 8. Nxc6 bxc6 9. cxd5 Qxd5 10. Qxd5 cxd5
1939 Buenos Aires ol prel-B – Round 3 – Baender, Paul – 1/2-1/2 – Gromer, Aristide – G8 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. a3 Bxc3+ 7. bxc3 h6 8. e3 O-O 9. Bd3 Re8 10. O-O Ne5
1940 Moskou ch-URS – Round 1 – Botvinnik, Mikhail – 1-0 – Levenfish, Grigory – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 Ng6 10. Bg3 Ne4
1940 URS-sf – Round ? – Goldberg, Grigory A – 0-1 – Pogrebissky, Iosif – G91 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 d6 7. Bg2 Bd7 8. O-O Bxc3 9. bxc3 O-O 10. Rb1 Rb8
1941 Buenos Aires Circulo – Round 7 – Najdorf, Miguel – 1/2-1/2 – Acebey Michel, Veroska – G23 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 O-O 9. e3 d6 10. Be2 Ne5
1941 GER Ch Bad Oeynhausen GER – Round 1 – Weinitschke, Erich – 0-1 – Pfeiffer, Gerhard – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Qd4 d6 8. Bg5 c5 9. Qh4 Bxc3+ 10. bxc3 Rb8
1942 Munich – Round 1 – Keres, Paul – 0-1 – Richter, Kurt – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 g5 8. Bg3 d6 9. Rc1 Nxd4 10. Qxd4 Bf5
1942 Munich – Round 8 – Keres, Paul – 0-1 – Richter, Kurt – G51 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 g5 8. Bg3 d6 9. Rc1 Nxd4 10. Qxd4 Bf5
1944 NSW Ch – Round ? – Goldstein, Maurice Edwards – 1/2-1/2 – Purdy, Cecil J S – G2 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bg5 h6 8. Bh4 Bxc3+ 9. bxc3 c5 10. Rb1 d6
1944 Tbilisi – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Smorodsky, Andrei – G18 1. Nf3 Nc6 2. c4 e5 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Nb3 Be7 7. e4 O-O 8. Be2 Re8 9. O-O a5 10. f3 a4
1945 Moscow Ch – Round 15 – Poliak, Abram – 0-1 – Zhivtsov, A. – G83 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 d6 8. Rc1 g5 9. Bg3 Ne4 10. Nxc6 bxc6
1945 Moskou ch-URS – Round 1 – Goldberg, Grigory A – 0-1 – Ratner, Boris – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. e3 Ng6 9. Bg3 Ne4 10. Qb3 Bxc3+
1945 Novi Sad – Round 22 – Popovic, Vojislav – 1/2-1/2 – Tot, Bora – G200 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 Bxc3+ 7. bxc3 dxc6 8. Qxd8+ Kxd8 9. Bg5 Be6 10. Bxf6+ gxf6
1945 Ventnor City – Round 6 – Keltz, B. – 1/2-1/2 – Adams, Weaver – G15 1. Nf3 Nc6 2. c4 e5 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. g3 O-O 7. Bg2 Re8 8. Nxc6 bxc6 9. O-O Bxc3 10. bxc3 Qe7
1945 Zlin – Round 9 – Kottnauer, Cenek – 1-0 – Holas, Josef – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Nxc4 10. e4 Ne3
1946 Groningen – Round 2 – Kottnauer, Cenek – 0-1 – Euwe, Max – G7 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 Ne5 8. f4 Ng6 9. g3 h6 10. Bxf6 Qxf6
1946 Pittsburgh Open – Round 1 – Bisguier, Arthur B – 0-1 – Seidman, Herbert – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Qb3 a5 8. e3 Ne4 9. Be2 Qf6 10. O-O Nxc3
1946 Stockholm SWE – Round ? – Hult, Gunnar – 1-0 – Skold, Kristian – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 Ne5 8. e4 h6 9. Bxf6 Qxf6 10. Nb5 Qd8
1946 Zagreb ch-YUG – Round 12 – Tekavcic, Ivo – 0-1 – Pirc, Vasja – G6 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Qd4 d6 8. Bg5 c5 9. Qf4 Bxc3+ 10. bxc3 Rb8
1947 BRA Ch – Round 3 – Hartz Olimpio – 1/2-1/2 – De Souza Mendes, Joao – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Ne5 7. e3 h6 8. Bh4 Ng6 9. Bxf6 Qxf6 10. Rc1 c6
1947 Buenos Aires ch-ARG – Round 1 – Alvarez Martin, Pedro – 1-0 – Aponte De La Corte, Jose Manuel – G14 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Qe7 7. Rc1 Qe5 8. Nf3 Qe6 9. Bxf6 Qxf6 10. g3 d6
1947 Hilversum zt – Round 4 – Tsvetkov, Alexandar K – 1-0 – O'Sullivan, Bartholomew – G26 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 d6 7. b3 Be7 8. Bb2 Be6 9. e4 Ng4 10. Nd5 Ne5
1947 Kassel – Round 2 – Tautvaisas, Povilas – 0-1 – Bogoljubow, Efim – G7 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 Ne5 8. f4 Neg4 9. Nf5 h6 10. Bh4 g5
1947 Kassel – Round 5 – Heinrich Georg – 1/2-1/2 – Unzicker, Wolfgang – G20 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd2 O-O 8. e3 d6 9. Be2 Bxc3 10. Bxc3 Ne4
1947 Nt Lueneburg GER – Round 4 – Schulz, Walter – 0-1 – Roedl, Ludwig – G9 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. e3 Ng6 9. Bg3 Bxc3+ 10. bxc3 Ne4
1947 San Pablo blind sim – Round 11 – Najdorf, Miguel – 1-0 – Grossman, Eitan – G9 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 b6 7. Bg5 Bc5 8. Qe5+ Qe7 9. Bxf6 gxf6 10. Qxe7+ Bxe7
1947 Stuttgart – Round 1 – Rautenberg, Wilhelm – 1-0 – Saemisch, Friedrich – G1 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 Ng6 10. Bg3 Ne4
1947 Vienna SCHLECHTER-mem – Round 7 – Kottnauer, Cenek – 1-0 – Kellner, Adolf – G15 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. e3 O-O 10. Be2 Qe7
1948 Belgrade ch-YUG – Round 2 – Gligorić, Svetozar – 0-1 – Puc, Stojan – G5 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 g5 8. Bg3 Ne4 9. Rc1 Qf6 10. e3 h5
1948 Karlovy Vary – Round 1 – Richter, Edgar – 1-0 – Tartakower, Savielly – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. Qb3 Bxc3+ 9. Qxc3 d6 10. f3 O-O
1948 Karlovy Vary – Round 15 – Richter, Emil – 1-0 – Tartakower, Savielly – G143 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. Qb3 Bxc3+ 9. Qxc3 d6 10. f3 O-O
1948 Moskou ch-URS – Round 4 – Tolush, Alexander – 1-0 – Furman, Slavomir – G38 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Ng6 10. Bxf6 Qxf6
1949 Grossroehrsdorf – Round 6 – Kahn, Manfred – 0-1 – Pietzsch, Wolfgang – G5 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. f3 Bxc3+ 9. bxc3 Nxc4 10. Nf5 g5
1950 Corr – Round 1 – Thurber, R. – 0-1 – Heemsoth, Hermann – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. e3 O-O 9. f4 Ng6 10. Bxf6 Qxf6
1950 Corr Wch1 – Round 1 – Purdy, Cecil J S – 1/2-1/2 – Malmgren, Harald – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Ne5 7. Qb3 Qe7 8. Be3 Ne4 9. Nb5 Bxc3+ 10. Nxc3 Nxc3
1950 Dubrovnik olm – Round 3 – Gligoric, Svetozar – 1/2-1/2 – Castillo Bermudez, Manuel – G30 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 Ne5 8. f4 Ng6 9. g3 h6 10. Bxf6 Qxf6
1950 HUN-ch06 – Round 1 – Florian, Tibor – 1/2-1/2 – Balogh, Janos – G5 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. e3 d5 8. Be2 dxc4 9. Nxc6 bxc6 10. Qxd8 Rxd8
1950 URS Ch sf – Round 8 – Kopilov, Nikolay Georgiyevich – 0-1 – Koblencs, Alexander – G6 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Ng6 10. Bxf6 Qxf6
1951 DDR Ch – Round 10 – Nuesken Fritz – 1/2-1/2 – Kuebart, Erich – G20 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 O-O 9. f3 Re8 10. Bf2 Ne5
1951 Restricted Opening Tournament – Round ? – Anderson, Frank Ross – 1-0 – Avery, Peter – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 g5 8. Bg3 d6 9. f3 Bd7 10. e4 Qe7
1951 Restricted Opening Tournament – Round ? – Avery, Peter – 0-1 – Anderson, Frank Ross – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 g5 8. Bg3 d6 9. e3 Ne4 10. Qc2 Qe7
1951 Toronto Ch finals – Round 1 – Avery, Peter – 0-1 – Anderson, Frank Ross – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 Ng6 10. Bg3 Ne4
1951 USA-op52 – Round 8 – Hearst, Eliot – 1/2-1/2 – Kashdan, Isaac – G16 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. Qb3 Ba5 9. O-O-O Ng6 10. Bxf6 Qxf6
1951 YUG Ch 6th – Round 8 – Karaklajic, Nikola – 1-0 – Majstorovic, Ljubomir – G40 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Ne5 6. e4 Bb4 7. f4 Nxe4 8. Qe2 O-O 9. Qxe4 Ng4 10. Qf3 Re8+
1952 GBR Ch U18 – Round 7 – Cafferty, Bernard – 1-0 – Griffiths, Derek Francis K – G7 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O Ne7 9. e4 d6 10. h3 Bd7
1952 Hollywood – Round 1 – Joyner, Lionel – 1-0 – Graf, Sascha – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Ne5 6. e4 Bb4 7. Bd3 Bxc3+ 8. bxc3 Nxd3+ 9. Qxd3 d6 10. Bg5 h6
1952 URS ch sf – Round 1 – Tolush, Alexander V – 1-0 – Kan, Ilya A – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. Qb3 a5 9. a3 Bc5 10. O-O-O d6
1953 Bucharest – Round 1 – Filip, Marius Liviu – 1/2-1/2 – Sajtar, Jaroslav – G1 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Ng6 10. Bxf6 Qxf6
1954 Lodz ch POL – Round 8 – Witkowski, Stefan – 1-0 – Gniot, Tadeusz – G5 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 Be7 7. e4 d6 8. f3 c6 9. Be2 Be6 10. Be3 O-O
1956 Alekhine Memorial – Round 1 – Pachman, Ludek – 0-1 – Keres, Paul – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. e3 O-O 7. Be2 d5 8. Nxc6 bxc6 9. O-O Bf5 10. b3 Qe7
1956 Leningrad ch-URS – Round 1 – Bivshev, Vasily – 1-0 – Lisitsin, Georgy – G10 1. c4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Ng6 10. Bxf6 Qxf6
1957 EU Team Ch – Round 5 – Darga, Klaus – 1/2-1/2 – Keres, Paul Petrovich – G39 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. e3 O-O 7. Be2 d5 8. cxd5 Nxd5 9. Nxc6 bxc6 10. O-O Rb8
1957 Minsk zt – Round 8 – Boleslavsky, Isaac – 1/2-1/2 – Sokolsky, Alexey – G51 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. e3 Nxd4 10. cxd4 c5
1958 Munich olm prel – Round 5 – Ojanen, Kaarle S – 1-0 – Rojahn, Ernst – G104 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. e3 Ne5 10. Be2 Ng6
1959 Corr – Round 1 – Endzelins, Lucius – 1-0 – Balogh Moran, Andres – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. Rc1 d5 8. cxd5 Qxd5 9. Bxf6 gxf6 10. Nxc6 Qxc6
1959 CSR Ch – Round 10 – Kozma, Julius – 1/2-1/2 – Jares, Jakub – G74 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. e3 Ne5 10. Be2 Ng6
1959 Lodz ch POL – Round 8 – Sliwa, Bogdan – 0-1 – Brzozka, Stefan – G38 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. f3 Ne5 10. e4 Ng6
1960 CSR Ch – Round 1 – Rejfir, Josef – 1-0 – Kupka, Slavoj – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 d5 8. Bg2 Be6 9. O-O O-O 10. cxd5 cxd5
1960 Sofia ch BUL – Round 16 – Bobotsov, Milko G – 1-0 – Pantaleev, Dimitar – G16 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 d6 6. e4 Nd7 7. Be3 g6 8. h4 Nc5 9. Be2 Ne6 10. Nxe6 Bxe6
1961 Bled – Round 5 – Pachman, Ludek – 0-1 – Keres, Paul Petrovich – G46 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 h5 8. Bg2 h4 9. O-O hxg3 10. hxg3 Qe7
1961 Budapest ch-HUN – Round 1 – Kluger, Gyula – 1-0 – Sallay, Roland – G7 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 d6 7. Rc1 Bd7 8. a3 Bc5 9. e3 h6 10. Bh4 g5
1961 GDR Ch Premnitz GER – Round 2 – Uhlmann, Wolfgang – 1-0 – Golz, Werner – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. e3 O-O 7. Be2 Re8 8. O-O h6 9. Nxc6 bxc6 10. Bf3 Rb8
1962 GDR Ch Gera GER – Round 11 – Zirngibl, Albert – 0-1 – Fuchs, Reinhart – G17 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 O-O 8. e3 d5 9. cxd5 Qxd5 10. Bxf6 gxf6
1962 Varna ol (Men) qual-D – Round 2 – Sanguineti, Raúl Carlos – 1-0 – Faruy, Ali – G7 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Ne5 6. e4 Bb4 7. f3 O-O 8. Be2 d6 9. O-O Bxc3 10. bxc3 a6
1962 Wch5 sf10 6265 – Round ? – Cafferty, Bernard – 1-0 – Van Koe, JWA . – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. f3 O-O 10. e4 Ne5
1963 GDR Ch Aschersleben GER – Round 11 – Muehlberg, Siegfried – 1/2-1/2 – Hennings, Artur – G58 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. Nxc6 bxc6 10. e3 O-O
1963 Sweden – Round 5 – Horberg, Bengt-Eric – 1-0 – Dahl Schutt, Frederik – G6 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. Rc1 Re8 8. e3 d6 9. Be2 h6 10. Nxc6 bxc6
1963 Telnice/Usti – Round ? – Janata, Michael – 1-0 – Seifert, Milan – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 Qe7 8. Bg2 Bb7 9. O-O h5 10. Bg5 Qe6
1963 URS Team Ch Moscow RUS – Round ? – Lein, Anatoly – 1-0 – Kalatozishvili, Guram – G33 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 Ne5 8. f4 Ng6 9. g3 O-O 10. Bg2 Re8
1964 Amsterdam Interzonal – Round 16 – Lengyel, Laszlo – 1/2-1/2 – Spassky, Boris V. – G154 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. f3 Ne5 10. e4 Ng6
1964 Budapest ch-HUN – Round 1 – Lengyel, Laszlo – 1-0 – Barczay, Laszlo – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 h5 8. Bg2 h4 9. O-O hxg3 10. hxg3 d5
1964 Buenos Aires – Round 13 – Eliskases, Erich – 1/2-1/2 – Wexler, Bernardo – G113 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 Ng6 10. Bg3 Ne4
1964 Clare Benedict Cup 11th – Round 5 – Baumgartner, Heinz – 1-0 – Magrin, Antonio – G24 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Bxc3+ 7. bxc3 h6 8. Bh4 Ne5 9. f4 Ng6 10. Bxf6 Qxf6
1964 Harrachov – Round 3 – Janata, Michael – 1-0 – Voboril, Pavel – G5 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 Ne4 7. Bxd8 Nxc3 8. Nxc6 Nxd1+ 9. Nxb4 Nxf2 10. Kxf2 Kxd8
1964 Tel Aviv olm fin-A – Round 7 – Lengyel, Levente – 1/2-1/2 – Radovici, Corvin – G139 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 O-O 8. Rc1 d6 9. e3 Ne5 10. Be2 Ng6
1965 ISR Ch – Round 14 – Richter, Yosef – 1/2-1/2 – Persitz, Raaphi – G54 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. e3 O-O 7. Be2 d6 8. O-O Re8 9. Nxc6 bxc6 10. Bf3 Bb7
1965 Klasterec nad Orlici U18 6566 – Round 6 – Pribyl, Josef – 1/2-1/2 – Janata, Michael – G14 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 h5 8. Bg2 h4 9. O-O hxg3 10. hxg3 Qe7
1965 POL Ch 23th sf – Round 2 – Galewicz, Marek – 1/2-1/2 – Tarnowski, Alfred – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Ne5 8. Qb3 Bxc3+ 9. Qxc3 d6 10. e3 Ng6
1965 Zinnowitz 02nd – Round 14 – Bruentrup, Dieter – 0-1 – Liebert, Heinz – G36 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nc2 Bxc3+ 7. bxc3 d5 8. e3 Be6 9. cxd5 Nxd5 10. Bb2 O-O
1967 BRA Ch – Round 2 – Fonrobert, Gert Wolfgang – 1/2-1/2 – Mangini, Jose Henrique de Mello – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd2 O-O 8. a3 Be7 9. e3 d5 10. Be2 Bf5
1967 Zierikzee ch-NED – Round 3 – Rosenthal, Max Manuel – 0-1 – Ree, Hans – G21 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 d6 10. f3 O-O
1968 Copenhagen ch-DEN – Round 1 – Hamann, Svend – 1-0 – Moe, Mogens – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. f3 O-O 10. e4 Ne5
1968 Havirov – Round 9 – Baumgartner, Heinz – 1/2-1/2 – Pantaleev, Dimitar Dimitrov – G30 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 d6 7. Rc1 h6 8. Nxc6 bxc6 9. Bh4 Bc5 10. e3 Qe7
1968 Moscow Ch – Round 1 – Volovich, Anatoly – 0-1 – Averbakh, Yuri L – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 d6 10. Be2 O-O
1968 Sombor – Round 1 – Kluger, Gyula – 1/2-1/2 – Wade, Robert G – G1 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. g3 Qe7 8. Bg2 Bb4 9. O-O O-O 10. Qa4 a5
1969 Schwerin – Round 1 – Dietze, Wolfgang, Dr. – 1/2-1/2 – Neukirch, Detlef – G1 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 d6 9. f3 Ne5 10. e4 Ng6
Corus 2002 – Round 4 – Gurevich, Mikhail – 1/2-1/2 – Bareev, Evgeny – G22 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 O-O 8. Rc1 Re8 9. e3 Nxd4 10. Qxd4 c5
FIDE World Cup 2025 – Round R1 Rapid 1 – Nogerbek Kazybek – 0-1 – Raja Rithvik R – G193 1. c4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. g3 O-O 7. Bg2 Bxc3+ 8. bxc3 Ne5 9. c5 d6 10. cxd6 Qxd6
FIDE World Cup 2025 – Round R1 Rapid 2 – Adly Ahmed – 1/2-1/2 – Grigoryan Karen H. – G201 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. c3 Nf6 6. Ne5 a6 7. Bd3 g6 8. O-O Bg7 9. Re1 O-O 10. Nd2 Ne8
FIDE World Cup 2025 – Round R2 Classical 2 – Baadur Jobava – 0-1 – Le Quang Liem – G292 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. Be2 Be7 10. O-O O-O
FIDE World Cup 2025 – Round R2 Classical 2 – Stremavicius Titas – 1-0 – So Wesley – G284 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Bxc3+ 7. bxc3 Na5 8. e4 Nxe4 9. Bg2 Nf6 10. Qe2+ Qe7
FIDE-Wch k.o. 1999 – Round 2.1 – Yermolinsky, Alex – 1/2-1/2 – Rublevsky, Sergei – G27 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. Rc1 h6 8. Bh4 Re8 9. e3 Nxd4 10. Qxd4 c5
FIDE-Wch k.o. g/25+10 1999 – Round 2.3 – Yermolinsky, Alex – 0-1 – Rublevsky, Sergei – G9 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 O-O 9. Nxc6 dxc6 10. Qxd8 Rxd8
Koop Tjuchem 1996 – Round 1 – Gelfand, Boris – 1/2-1/2 – Korchnoi, Viktor – G2 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 O-O 8. Rc1 Re8 9. e3 Nxd4 10. Qxd4 c5
Las Palmas 1996 – Round 4 – Kramnik, Vladimir – 1/2-1/2 – Karpov, Anatoly – G6 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Ng6 10. Bxf6 Qxf6
Qatar Masters Open 2015 – Round 1.24 – Rajendra Sagar, Siya – 1/2-1/2 – Fedoseev, Vladimir – G17 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 O-O 7. Rc1 Ne5 8. e3 h6 9. Bxf6 Qxf6 10. Be2 Qb6
SportAccord Blitz 2014 – Round 15.5 – Ivanchuk, Vasyl – 1-0 – Harikrishna, Pentala – G116 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Ng6 10. Bxf6 Qxf6
Superbet Blitz 2023 – Round 13.5 – Carlsen, Magnus – 1-0 – Wojtaszek, Radoslaw – G65 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 O-O 7. Bg2 Ne5 8. Qb3 Bc5 9. Nc2 d6 10. Na4 Bb6
SuperUnited Rapid 2023 – Round 4.1 – Carlsen, Magnus – 0-1 – Caruana, Fabiano – G16 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. g3 Na5 7. Qd3 d5 8. cxd5 Qxd5 9. Qb5+ Bd7 10. Qxd5 Nxd5
Tilburg Fontys 1998 – Round 4 – Zvjaginsev, Vadim – 1/2-1/2 – Van Wely, Loek – G10 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. e3 O-O 10. f3 d6
Torneo Magistral 6th 1997 – Round 3 – Salov, Valery – 1-0 – Beliavsky, Alexander G – G11 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 O-O 8. Rc1 Re8 9. Nxc6 bxc6 10. e3 Rb8
XXIV SuperGM 2007 – Round 6 – Morozevich, Alexander – 1/2-1/2 – Svidler, Peter – G19 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5 9. f4 Ng6 10. Bxf6 Qxf6

A28e — Four Knights

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.d4

Eval: [-0.18]

Les coups candidats

4…exd4 — 86.4% (3661 parties)

Ambassadeurs : Hausner, Ivan (34x), Rumyantsev, Vladimir (27x), Cafferty, Bernard (20x), Gasthofer, Viktor (18x), Urpilainen, Erkki (18x), Claesen, Pieter (17x), Mellado Trivino, Juan (15x), Aigmueller, Max Ing (14x)

4…e4 — 11.2% (476 parties) →

Ambassadeurs : Cafferty, Bernard (4x), Riumin, Nikolai (3x), Ragozin, Viacheslav (3x), Lilienthal, Andor (3x), Williams, A. Howard (3x), Wells, Ian D (3x), Aigmueller, Max Ing (3x), Kovacevic, Blazimir (3x)

4…d6 — 1.5% (63 parties) →

Ambassadeurs : ? (2x), Funk Patrik (2x), Cafferty, Bernard (1x), Green, LG. (1x), De Lauretis P (1x), Celestini, Mauro (1x), Herzig Walter (1x), Jentzsch, Joachim (1x)

4…Bb4 — 0.3% (14 parties)

Ambassadeurs : Johansson, Clas-Erik (1x), Poetzschmann Rolf (1x), Allen, Robert (1x), Clay Perry (1x), Zickelbein, Eva Maria (1x), Salatova J (1x), Stift, Tamas (1x), Zadori, Janos (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…exd4	4…e4	4…d6	4…Bb4
<1800	167	89%	8%	2%	1%
1800-2200	1368	89%	10%	1%	0%
2200-2600	1120	90%	9%	1%	—
2600+	57	95%	5%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	4…exd4	4…e4	4…d6	4…Bb4
1910s	1	100%	—	—	—
1920s	49	94%	6%	—	—
1930s	86	85%	15%	—	—
1940s	90	76%	24%	—	—
1950s	78	78%	21%	1%	—
1960s	95	82%	17%	—	1%
1970s	169	85%	15%	—	—
1980s	259	82%	17%	1%	—
1990s	712	85%	11%	2%	1%
2000s	1218	85%	12%	2%	0%
2010s	1311	90%	8%	1%	0%
2020s	168	93%	5%	2%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…exd4	90%	93%	▲ +3.7%
4…e4	8%	5%	▼ -3.6%
4…d6	1%	2%	+0.4%
4…Bb4	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 9 parties
Tal, Mikhail — 8 parties
Alekhine, Alexander — 5 parties
Euwe, Max — 5 parties
Smyslov, Vladimir — 4 parties
Lasker, Emanuel — 2 parties
Carlsen, Magnus — 2 parties
Steinitz, Wilhelm — 1 partie
Kramnik, Vladimir — 1 partie
Karpov, Aleksandr — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

4…exd4 — 86.4% (3661 parties)

1913 — Schenkein, Joachim vs Spielmann, Rudolf — 0-1 — Vienna AUT
1922 — Tartakower, Savielly vs Gruenfeld, Ernst — 1/2-1/2 — Vienna AUT
1924 — Rubinstein, Akiba vs Johner, Paul — 1-0 — Berlin GER
1925 — Tartakower, Savielly vs Saemisch, Friedrich — 1-0 — Ch World (match) New York (US
1925 — Steinitz, Wilhelm vs Lasker, Emanuel — 1-0 — Belgie m

4…e4 — 11.2% (476 parties)

1927 — Rasmusson Birger vs Rosselli del Turco, Stefano — 1/2-1/2 — London ENG
1929 — Babel August vs Orbach Wilhelm — 0-1 — Duisburg
1929 — Bigelow, Horace vs Alekhine, Alexander — 0-1 — Bradley Beach
1931 — Kostic, Boris vs Opocensky, Karel — 1-0 — Prague ol Prague CZE
1933 — Apscheneek, Fricis vs Tartakower, Savielly — 0-1 — Folkestone ENG

4…d6 — 1.5% (63 parties)

1953 — Cafferty, Bernard vs Green, LG. — 1-0 — ?
1981 — Herzig Walter vs Jentzsch, Joachim — 1-0 — ?
1984 — ? vs Chess 0.5X — 0-1 — Leiden NED
1988 — De Lauretis P vs Celestini, Mauro — 1-0 — ?
1990 — Christoffel, Martin vs Baumann, Claude — 1-0 — Basel SUI

4…Bb4 — 0.3% (14 parties)

1965 — Johansson, Clas-Erik vs Poetzschmann Rolf — 1/2-1/2 — ?
1993 — Jonkman, Fokke vs Laurent, Claude — 1/2-1/2 — BEL-NLD
1994 — Woods, I. vs Charette B — 1-0 — Fowlerville Jun mini
1995 — Allen, Robert vs Clay Perry — 1-0 — ?
1996 — Stift, Tamas vs Zadori, Janos — 1/2-1/2 — Miskolc

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