B23 — Sicilian Defense: Closed, Traditional

1. e4 c5 2. Nc3 Nc6 ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, case forte d5, paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 5 pièces non développées (G1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nf3 — Développer Ng1 [Masters 17%]
● g3 — Masters 30%
● Bb5 — Clouer c6, Fou actif (mobilité 7), Développer f1, [Masters 22%]
● Bd3 — Développer Bf1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte b4, case forte d4, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 5 pièces non développées (G8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...g6 — Expansion aile roi [Masters 94%]
● ...Bd6 — Développer Bf8
● ...c4 — Rupture
● ...d5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Base Masters : Blancs 30.8%, Nulles 41.0%, Noirs 28.2%.

B23k — Closed

1.e4 c5 2.Nc3 Nc6

Eval: [+0.21]

Les coups candidats

3.g3 — 40.4% (52477 parties) →

Ambassadeurs : Starostits, Ilmars (137x), Welz, Peter, Dr. (132x), Rogulj, Branko (93x), Bastian, Herbert (90x), Parkanyi, Attila (77x), Krapivin, Alexander (73x), ? (70x), Bulgarini Torre, Marco (62x)

3.f4 — 25.4% (32965 parties) →

Ambassadeurs : Weeramantry, Sunil (69x), Koronowski, Heinz-Juergen (66x), Chaves, Joara (58x), Szell, Lajos (57x), Horvath, Gabor (54x), Wippermann, Till (53x), Boronyak, Arpad (51x), Fritsche, Frank (49x)

3.Bb5 — 12.5% (16215 parties) →

Ambassadeurs : Lyell, Mark (92x), Pirs, Matjaz (70x), Tissir, Mohamed (69x), Staf, Gunnar (59x), Tiviakov, Sergei (57x), Marholev, Dimitar (56x), Simonian, Hrair (55x), Thesing, Matthias (53x)

3.Nf3 — 10.9% (14155 parties) →

Ambassadeurs : Mitkov, Nikola (80x), Gdanski, Jacek (58x), Hild, Harald (43x), Engelhard, Christof (43x), Kupreichik, Viktor D (39x), Eismont, Oleg (37x), Guseinov, Gadir (35x), Hebden, Mark L (32x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3.g3	3.f4	3.Bb5	3.Nf3
<1800	5265	36%	33%	11%	11%
1800-2200	53253	42%	29%	12%	8%
2200-2600	42117	35%	19%	19%	13%
2600+	658	19%	6%	26%	30%

Évolution par décennie (% des parties)

Décennie	N parties	3.g3	3.f4	3.Bb5	3.Nf3
1790s	1	100%	—	—	—
1860s	10	50%	—	—	40%
1870s	18	11%	—	—	83%
1880s	79	23%	5%	—	71%
1890s	34	35%	—	—	65%
1900s	121	31%	3%	1%	58%
1910s	11	27%	—	—	64%
1920s	120	60%	—	—	16%
1930s	228	75%	1%	—	8%
1940s	241	76%	12%	0%	5%
1950s	636	74%	11%	1%	6%
1960s	1654	58%	19%	1%	6%
1970s	2379	55%	24%	0%	10%
1980s	4458	59%	20%	1%	8%
1990s	24717	49%	26%	2%	9%
2000s	43659	43%	26%	11%	11%
2010s	40408	33%	28%	18%	11%
2020s	10978	22%	18%	32%	15%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3.g3	33%	22%	▼ -10.9%
3.f4	28%	18%	▼ -9.5%
3.Bb5	18%	32%	▲ +14.0%
3.Nf3	11%	15%	▲ +3.5%

Joueurs célèbres

Champions du monde dans cette position

Lasker, Emanuel — 10 parties
Euwe, Max — 10 parties
Smyslov, Vladimir — 10 parties
Karpov, Aleksandr — 10 parties
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Kramnik, Vladimir — 10 parties
Carlsen, Magnus — 10 parties
Hou, Yifan — 10 parties
Gukesh D — 10 parties
Botvinnik, Mikhail — 9 parties
Tal, Mikhail — 9 parties
Steinitz, Wilhelm — 7 parties
Ju, Wenjun — 5 parties
Alekhine, Alexander — 3 parties
Ding, Liren — 1 partie

Parties historiques

3.g3 — 40.4% (52477 parties)

1793 — Hlavac, Frantisek vs Djeno, Drago — 1-0 — Bayern
1864 — Paulsen, Laurids vs Neumann, Gernot — 0-1 — Leipzig GER
1867 — Paulsen, Louis vs Bohres, Ad — 1/2-1/2 — Cologne GER
1868 — Blackburne, Joseph vs MacDonnell, George — 0-1 — London ENG
1869 — Rosenthal, Samuel vs Neumann, Gustav — 1/2-1/2 — Paris FRA

3.f4 — 25.4% (32965 parties)

1887 — Zuckertort, Josef vs Paulsen, Louis — 0-1 — Frankfurt GER
1887 — Zukertort, Johannes vs Paulsen, Louis — 0-1 — It Frankfurt GER
1887 — Zukertort, Johannes vs Paulsen, Louis — 0-1 — Frankfurt GER
1887 — Tarrasch, Siegbert vs Paulsen, Louis — 1-0 — Frankfurt GER
1903 — Levitsky, Stepan vs Duz-Khotimirsky, Fedor Ivanovich — 1-0 — Kiev UKR

3.Bb5 — 12.5% (16215 parties)

1904 — Mieses, Jacques vs Fox, Albert — 1-0 — Cambridge
1940 — Herrmann, Loris vs Hahn, Eric — 1-0 — Bad Elster GER
1951 — Hermann, Ludwig vs Troianescu, Octav — 0-1 — Sopot
1952 — O'Hara, James B vs Smith, WB. — 0-1 — Bolton
1954 — Burstein, S vs Rabar, Braslav — 1/2-1/2 — Munich GER

3.Nf3 — 10.9% (14155 parties)

1865 — Paulsen, Aleksander Karlsen vs Witthaus, C. — 1-0 — Elberfeld
1866 — Steinitz, Wilhelm vs Mac Donnell, A — 1-0 — London ENG
1866 — Steinitz, Wilhelm vs McDonnell, Alexander — 1-0 — London ENG
1869 — Zukertort, Johannes vs Minckwitz, Johannes — 1-0 — Altona
1870 — Steinitz, Wilhelm vs Strecker Walsh, Gabriel Alejandro — 1-0 — Great Britain

Coups candidats

auto

Analyse coup par coup — 4 demi-coups commentés

1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3.
1…c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5.
2.Nc3 Contrôle c4, d5, f5.
2…Nc6 Contrôle d4, e5.

Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (2v0)	● b4 (2v0), ● d4 (2v0)
Cases faibles	—	—
Centre	● d5 (2v0), ● e4 (1v0)	● d4 (2v0), ● e5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (g1, c1, f1, a1, h1)	5 (g8, 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	● d2-d3, ● e4-e5, ● f2-f3	● …c5-c4, ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
? 1978 – Round ? – Spassky, Boris V. – 0-1 – Ljubojevic, Ljubomir – G4 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. f4 g6 5. Nf3 Bg7 6. Bg2 b5 7. a3 Qa5 8. O-O b4 9. Ne2 c4 10. d4 cxd3
1911 Karlsbad – Round 25 – Burn, Amos – 1-0 – Chajes, Oscar – G287 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. h3 e5 6. d3 h6 7. Nge2 Be7 8. O-O Bd7 9. f4 Qc7 10. Nb5 Qc8
1922 Teplitz-Schoenau – Round 4 – Tarrasch, Siegbert – 1-0 – Saemisch, Friedrich – G28 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Bd7 5. Nge2 Qc8 6. Nf4 Bg4 7. f3 Bd7 8. d3 g6 9. Ncd5 Bg7 10. c3 Rb8
1925 Moscow – Round 1 – Ilyin Zhenevsky, Alexander – 0-1 – Levenfish, Grigory – G64 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. h3 Bd7 6. Nge2 Qc8 7. b3 e5 8. Bb2 Be7 9. Nd5 Nxd5 10. exd5 Nd8
1926 Bardejov – Round 10 – Balogh, Janos – 1/2-1/2 – Mueller, Hans – G50 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nd4 5. Nce2 g6 6. c3 Nc6 7. d3 Bg7 8. f4 Bg4 9. h3 Bd7 10. Nf3 Qc8
1927 London Olympiad 1st – Round 15.84 – Te Kolste, Jan Willem – 1/2-1/2 – Kalabar, Sadi – G173 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. d3 e6 6. Nge2 Be7 7. O-O O-O 8. f4 d5 9. e5 Ne8 10. Kh1 f6
1928 BCF Ch 21st – Round 1 – Morrison, John Harold – 1-0 – Buerger, Victor – G3 1. e4 c5 2. Nc3 Nc6 3. g3 h5 4. Bg2 d6 5. d3 g6 6. h3 Bd7 7. f4 Bg7 8. Nf3 Rb8 9. Ne2 e5 10. c3 Nge7
1929 Karlsbad – Round 1 – Matisons, Hermanis – 1-0 – Menchik, Vera Frantsevna – G105 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 g6 5. Nge2 Bg7 6. O-O d6 7. d3 Bd7 8. Nd5 O-O 9. c3 Rc8 10. Ne3 Qb6
1929 Paris – Round 1 – Seitz, Jakob Adolf – 0-1 – Tartakower, Savielly – G3 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Bd7 5. Nge2 Qc8 6. d3 h5 7. h3 g6 8. Be3 Bg7 9. Qd2 Nd4 10. Nd1 e6
1929 Paris Paris FRA – Round 1 – Seitz, Jakob Adolf – 0-1 – Tartakower, Savielly – G3 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Bd7 5. Nge2 Qc8 6. d3 h5 7. h3 g6 8. Be3 Bg7 9. Qd2 Nd4 10. Nd1 e6
1931 Argentina – Round 1 – Palau, Luis – 0-1 – Nogues Acuna, Alejandro – G3 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Bd7 5. Nge2 Qc8 6. h3 g6 7. d3 Bg7 8. Be3 Nd4 9. Qd2 b5 10. f4 h5
1931 Argentina – Round 3 – Palau, Luis – 1/2-1/2 – Castillo Lynch, Jacob Tyler – G11 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Bd7 5. d3 Qc8 6. h3 h5 7. Be3 e5 8. f4 h4 9. g4 Nd4 10. f5 Bc6
1932 Hastings3233 – Round 9 – Alexander, Conol Hugh – 0-1 – Pirc, Vasja – G42 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 g6 5. Nge2 Bg7 6. d3 d6 7. O-O O-O 8. h3 Ne8 9. Be3 Nd4 10. f4 f5
1935 BCF Ch 28th – Round 8 – Cole, Henry Holwell – 0-1 – Thomas, George Alan – G20 1. e4 c5 2. Nc3 Nc6 3. Bc4 g6 4. f4 d6 5. Nf3 Bg7 6. O-O e6 7. d3 Nge7 8. a3 O-O 9. Ne2 b6 10. c3 d5
1936 Budapest – Round 14 – Balogh, Janos – 1/2-1/2 – Barcza, Gedeon – G55 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. a4 d6 5. Bg2 Bd7 6. Nge2 Qc8 7. h3 g6 8. d3 Bg7 9. g4 h5 10. f3 a6
1936 Budapest – Round 16 – Balogh, Janos – 1/2-1/2 – Lovas, Gyula – G63 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Bd7 5. Nge2 Qc8 6. Nd5 e6 7. Ne3 Nd4 8. c3 Nxe2 9. Qxe2 Nf6 10. O-O Be7
1936 Muenchen ol – Round 11 – Hasenfuss, Wolfgang – 0-1 – Barcza, Gedeon – G28 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. Bg2 b5 5. Nge2 e6 6. Nf4 Nf6 7. O-O Be7 8. Re1 d6 9. b3 O-O 10. Bb2 Qc7
1936 Muenchen ol – Round 7 – Rellstab, Ludwig Sr – 1-0 – Turn, Johannes – G17 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Bd7 5. Nge2 Qc8 6. h3 g6 7. d3 Bg7 8. Be3 Nd4 9. Qd2 Rb8 10. Nd1 e5
1937 Bad Elster – Round 7 – Rellstab, Ludwig – 1-0 – Pelikán, Jiří – G21 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. Nge2 d5 6. exd5 exd5 7. d4 Bg4 8. Be3 cxd4 9. Bxd4 Bb4 10. O-O O-O
1937 Kemeri – Round ? – Apscheneek, Fricis – 1/2-1/2 – Flohr, Salo – G169 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d5 5. Nxd5 Nxd5 6. exd5 Nb4 7. a3 Nxd5 8. Ne2 e5 9. O-O Be7 10. d3 O-O
1937 Kemeri – Round ? – Rellstab, Ludwig Sr – 1/2-1/2 – Steiner, Andreas – G168 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nd4 5. Nge2 g6 6. Nxd4 cxd4 7. Ne2 Bg7 8. d3 e6 9. O-O Ne7 10. c4 dxc3
1937 Kemeri – Round 1 – Apscheneek, Fricis – 1/2-1/2 – Flohr, Salo – G70 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d5 5. Nxd5 Nxd5 6. exd5 Nb4 7. a3 Nxd5 8. Ne2 e5 9. O-O Be7 10. d3 O-O
1937 Kemeri – Round 16 – Rellstab, Ludwig – 1/2-1/2 – Steiner, Endre – G141 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nd4 5. Nge2 g6 6. Nxd4 cxd4 7. Ne2 Bg7 8. d3 e6 9. O-O Ne7 10. c4 dxc3
1938 Bad Oeynhausen – Round 4 – Rellstab, Ludwig – 1-0 – Eisinger Max – G34 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. Nge2 Bg4 6. h3 Bd7 7. d3 g6 8. Be3 Bg7 9. Qd2 h5 10. Nd1 Qc8
1939 Buenos Aires – Round 1 – Rinder, Elfriede – 1/2-1/2 – Trepat, D. – G15 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. Nge2 g6 6. d3 Bg7 7. h3 O-O 8. O-O Bd7 9. Be3 Qc8 10. Kh2 Ne5
1941 New York – Round ? – Capablanca, Jose – 0-1 – Juan Lewis Khayo – G39 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 e5 5. d3 Nf6 6. Nge2 Be7 7. O-O O-O 8. f4 exf4 9. Nxf4 Ne5 10. h3 Bd7
1942 Mar del Plata – Round 7 – Rossetto, Hector – 1-0 – Maderna, Carlos – G58 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 g6 5. Nge2 d6 6. O-O Bd7 7. h3 Qc8 8. Kh2 h5 9. Nd5 Bg7 10. Nxf6+ Bxf6
1945 Hastings4546 – Round 3 – Mieses, Jacques – 1/2-1/2 – Devos, Paul – G15 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 g6 5. Nge2 Bg7 6. d3 d6 7. Nd5 O-O 8. c3 Be6 9. Nef4 Bd7 10. O-O Ne8
1945 Moscow Ch – Round 11 – Simagin, Vladimir – 1/2-1/2 – Fridstein, German – G59 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 g6 5. Nge2 Bg7 6. O-O O-O 7. d3 d6 8. h3 Nd4 9. Be3 Ne8 10. f4 Rb8
1946 London Championship Final – Round 2 – Koenig, Imre – 0-1 – Winter, William – G3 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. Nge2 Bg7 6. O-O e6 7. d3 Nge7 8. Bg5 h6 9. Be3 Nd4 10. Rb1 Nec6
1947 URS Ch, semi final – Round 10 – Bronstein, David I – 0-1 – Lisitsin, Georgy – G60 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d5 5. Nxd5 Nxd5 6. exd5 Nb4 7. Ne2 Nxd5 8. d4 e6 9. O-O Be7 10. dxc5 Bxc5
1948 Bad Gastein – Round 12 – Grob, Henry – 1-0 – Dorn, Max – G86 1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. Nge2 Bg7 5. g3 Nf6 6. Bg2 O-O 7. O-O d6 8. h3 Bd7 9. Kh2 a6 10. Rb1 Rc8
1948 Bad Gastein – Round 3 – Grob, Henry – 1/2-1/2 – Lundin, Erik – G21 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. d3 Bd7 5. Bg2 g6 6. Nge2 Bg7 7. Rb1 Nf6 8. a3 O-O 9. Bd2 Rc8 10. O-O Ne8
1948 Duisburg – Round 5 – Rellstab, Ludwig Sr – 1-0 – Berau – G5 1. e4 c5 2. Nc3 Nc6 3. g3 e5 4. Bg2 d6 5. Nge2 Bg4 6. h3 Be6 7. d3 h6 8. Be3 Nf6 9. f4 Be7 10. O-O g5
1948 US Open – Round 10 – Pinkus, Albert – 1-0 – Nash, Edmund – G54 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 g6 5. Nge2 Bg7 6. O-O d6 7. d3 a6 8. h3 Bd7 9. Be3 O-O 10. a4 Rb8
1949 GBR Ch 36th – Round 11.2 – Thomas, George Alan – 0-1 – Fazekas, Stephan – G49 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d5 5. Nxd5 Nxd5 6. exd5 Nb4 7. Ne2 Nxd5 8. d4 e6 9. c4 Nb6 10. Be3 cxd4
1949 GBR Ch 36th – Round 8.5 – Stone, Joseph – 0-1 – Fairhurst, William – G34 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d5 5. Nxd5 Nxd5 6. exd5 Nb4 7. d4 Bf5 8. c3 Nc2+ 9. Kf1 Nxa1 10. dxc5 Qa5
1949 Moscow Ch – Round ? – Chistiakov, Alexander – 0-1 – Fridstein, German – G52 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Be7 6. Nge2 O-O 7. O-O d5 8. exd5 exd5 9. Nf4 Bg4 10. Qd2 d4
1949 Santa Fe – Round 4 – Czerniak, Moshe – 0-1 – Sanguinetti, Renato – G11 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 e5 5. Nge2 Be6 6. f4 g6 7. O-O Qd7 8. Nd5 Bg7 9. c3 O-O-O 10. a4 h5
1950 Moscow Ch – Round 1 – Beilin, Mikhail – 0-1 – Chistiakov, Alexander – G15 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Be7 6. Nge2 O-O 7. O-O d5 8. exd5 exd5 9. Nf4 Bg4 10. Qd2 d4
1950 Schiavno Zdroj – Round 1 – Simagin, Vladimir – 1/2-1/2 – Averbakh, Yuri L – G64 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Be7 6. Nge2 O-O 7. O-O d5 8. exd5 exd5 9. Bg5 d4 10. Bxf6 Bxf6
1951 Hungary Ch – Round 1 – Bakonyi, Elek – 1/2-1/2 – Szily, Jozsef – G56 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. f4 g6 5. Nf3 Bg7 6. a4 a6 7. Bg2 d6 8. O-O Nd4 9. h3 Bd7 10. d3 Qc8
1951 URS Ch sf – Round 9 – Aronin, Lev – 1-0 – Konstantinopolsky, Alexander – G22 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. f4 d5 6. e5 Nd7 7. Nf3 Be7 8. d3 b5 9. Qe2 b4 10. Nd1 Qc7
1952 Helsinki olm – Round 1 – Grob, Henry – 0-1 – Book, Eero – G162 1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. Bd2 Bg7 5. Nf3 e6 6. Qc1 d5 7. Be2 b6 8. O-O d4 9. Nd1 e5 10. Ne1 Nge7
1952 URS ch sf – Round 5 – Bannik, Anatolij – 1/2-1/2 – Fridstein, German – G30 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. Nge2 Be7 6. O-O O-O 7. d4 cxd4 8. Nxd4 d5 9. exd5 exd5 10. h3 Qb6
1954 Bucharest – Round 5 – Troianescu, Octav – 1/2-1/2 – Korchnoi, Viktor – G53 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. Nge2 d5 6. exd5 exd5 7. d4 Bg4 8. h3 Be6 9. Bg5 h6 10. Bxf6 Qxf6
1954 OWL Ch – Round 4 – Groenegress, Wilfried – 1/2-1/2 – Meyer, Heinrich – G3 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. Bg2 b5 5. Nge2 e6 6. d4 b4 7. Nb1 cxd4 8. Nxd4 Qb6 9. Nxc6 dxc6 10. O-O Bc5
1954 URS Team Ch – Round 3 – Shishov, Mikhail – 0-1 – Fridstein, German – G45 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. f4 d5 6. e5 Nd7 7. Nf3 Be7 8. O-O O-O 9. d3 f6 10. exf6 Bxf6
1955 DDR Ch 06th – Round 1 – Dorawa, Bernhard – 1-0 – Kahn, Manfred – G2 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. Bg2 b5 5. Nge2 e6 6. Nf4 Nf6 7. d3 Be7 8. Be3 Qc7 9. O-O h5 10. Bf3 h4
1955 Zittau-B 5th – Round 1 – Thal, Olaf – 1/2-1/2 – Zirngibl, Albert – G2 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 d6 5. d3 Bg4 6. Nge2 Nd4 7. h3 Bf3 8. O-O Qd7 9. Be3 e5 10. Bxf3 Nxf3+
1955 Zittau-C 5th – Round 1 – Handel, Horst – 1-0 – Dorawa, Bernhard – G3 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. Nge2 Bg7 6. O-O e6 7. d3 Nge7 8. Be3 Nd4 9. Qd2 Qa5 10. a3 Nec6
1955 Zittau-C 5th – Round 7 – Handel, Horst – 1/2-1/2 – Netz, Siegfried – G14 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. Nge2 Bg7 6. O-O e6 7. d3 Nge7 8. h3 Nd4 9. Be3 Qa5 10. Bd2 Qc7
1956 CSR Ch – Round 15 – Sefc, Jan – 0-1 – Alster, Ladislav – G139 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. Bg2 b5 5. d3 g6 6. f4 Bg7 7. Nge2 b4 8. Nd5 e6 9. Ne3 Nge7 10. f5 exf5
1957 CSR Ch sf – Round 13 – Ratolistka, Josef – 0-1 – Vesely, Jiri – G47 1. e4 c5 2. Nc3 Nc6 3. d3 Rb8 4. f4 b5 5. Nf3 b4 6. Nd5 e6 7. Ne3 d5 8. exd5 exd5 9. g3 Be7 10. Bg2 Bf6
1957 Danmarksmesterskabet – Round 6 – Kupferstich, Moises – 0-1 – Nielsen, Hartvig – G19 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. Nge2 Bg7 6. O-O Nd4 7. d3 Nf6 8. h3 O-O 9. Be3 e5 10. g4 Ne8
1957 DDR Ch 08th – Round 11 – Franz, Joachim – 0-1 – Zirngibl, Albert – G73 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. Nge2 Be7 6. O-O O-O 7. h3 d5 8. d3 dxe4 9. dxe4 Qc7 10. Bf4 e5
1957 OWL Ch – Round 10 – Illgen, Hans – 0-1 – Hantke Rolf – G23 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. Nf3 e5 5. d3 d6 6. Bg2 Nf6 7. O-O Be7 8. Nh4 O-O 9. f4 exf4 10. Bxf4 b5
1958 GDR Ch Schkopau GER – Round 15 – Dorawa, Bernhard – 1/2-1/2 – Zirngibl, Albert – G92 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. Nge2 Be7 6. O-O O-O 7. d4 d6 8. h3 cxd4 9. Nxd4 Nxd4 10. Qxd4 Qa5
1958 Kienbaum – Round 4 – Franz, Joachim – 0-1 – Antoshin, Vladimir S – G12 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Be7 6. Nge2 d5 7. O-O O-O 8. exd5 exd5 9. Bg5 d4 10. Bxf6 Bxf6
1958 WchT U26 fin-A 05th – Round 3 – Emma, Jaime – 0-1 – Vyslouzil, Antonin – G22 1. Nc3 c5 2. e4 Nc6 3. d3 g6 4. Be3 Nd4 5. Nce2 Bg7 6. c3 Nxe2 7. Bxe2 d6 8. g4 Qa5 9. h4 h6 10. f4 Nf6
1959 Dresden – Round 10 – Franz, Joachim – 1-0 – Pietzsch, Wolfgang – G70 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. Nge2 e6 6. O-O Be7 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 e5 10. Qd3 h6
1959 Lima – Round 10 – Perez Alcocer, Jose – 0-1 – Pilnik, Herman – G54 1. e4 c5 2. Nc3 Nc6 3. g3 h5 4. h4 d6 5. d3 g6 6. Bg2 Bg7 7. Nge2 Nd4 8. f3 b5 9. Nd5 e6 10. Ne3 Rb8
1959 Wch U20 prel-C – Round 3 – Hoen, Ragnar Harald – 0-1 – Naranja, Renato – G6 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. d3 Bg4 6. f3 Bd7 7. Nge2 g6 8. O-O Bg7 9. Be3 O-O 10. h3 Rc8
1960 Ch - Campbell High S – Round 5 – Pollacek, B. – 0-1 – Blackstone, John – G5 1. e4 c5 2. Nc3 Nc6 3. Bc4 a6 4. Qf3 Ne5 5. Qe2 Nxc4 6. Qxc4 e6 7. b3 b5 8. Qe2 Qc7 9. Qf3 Bb7 10. Nh3 Nf6
1960 Friendly – Round ? – Andrews, Vernon – 0-1 – Collins, Richard Arnold – G17 1. e4 c5 2. Nc3 Nc6 3. d3 Nf6 4. Nf3 g6 5. Nd5 Bg7 6. Bf4 Nxd5 7. exd5 Nd4 8. Be5 Nxf3+ 9. Qxf3 Bxe5 10. c3 O-O
1961 Budapest ch-HUN – Round 1 – Barcza, Gedeon – 1-0 – Varnusz, Egon – G62 1. e4 c5 2. Nc3 Nc6 3. d3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 g6 8. Ne2 Bg7 9. O-O O-O 10. Rb1 Qd6
1961 Skittles – Round ? – Souza, Anthony – 1-0 – Blackstone, John – G3 1. e4 c5 2. Nc3 Nc6 3. Bc4 e6 4. Nf3 a6 5. d3 b5 6. Bb3 Nge7 7. O-O h6 8. a3 d5 9. e5 d4 10. Ne2 Ng6
1962 Capablanca Memorial – Round 13 – Sierro Gonzales – 1-0 – Pietzsch, Wolfgang – G129 1. e4 c5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 e6 5. Bg5 Be7 6. f4 h6 7. Bxf6 Bxf6 8. Nge2 a6 9. a4 Bd4 10. Nxd4 cxd4
1962 Capablanca Memorial – Round 17 – Siero, M. – 0-1 – Smyslov, Vladimir – G169 1. e4 c5 2. Nc3 Nc6 3. Bc4 g6 4. d3 Bg7 5. Nf3 d6 6. O-O Nf6 7. Nd5 Nd7 8. c3 e6 9. Nf4 Nb6 10. Bb3 O-O
1962 LAT Ch – Round ? – Darznieks Artur – 0-1 – Zilber, Israel – G40 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. Nge2 Be7 6. O-O O-O 7. d4 cxd4 8. Nxd4 Qb6 9. Nce2 d6 10. c4 Rd8
1963 Buenos Aires ch-ARG – Round 11 – Bahena Figueroa, Eder – 0-1 – Alonso-Lej De Las Casas, Fernando – G58 1. Nc3 c5 2. e4 Nc6 3. d3 g6 4. Be3 d6 5. Qd2 Bg7 6. Be2 e6 7. g4 Bd7 8. h4 Qb6 9. Nd1 Nd4 10. h5 gxh5
1963 Leipzig Open 6364 2nd – Round 4 – Franz, Joachim – 1/2-1/2 – Weber, Gerhard – G21 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 g6 5. Nge2 Bg7 6. O-O e6 7. d3 Nge7 8. Be3 O-O 9. Qd2 Nd4 10. Rab1 Rb8
1963 Odense – Round 1 – Haahr, Thorkild – 0-1 – Andersen, Borge – G1 1. Nc3 c5 2. e4 Nc6 3. d3 e6 4. Nf3 Nf6 5. Bd2 Be7 6. Be2 Qc7 7. O-O a6 8. Re1 O-O 9. Qc1 Nd4 10. Bf4 d6
1963 WchT U26 10th – Round 1.2 – Csom, Istvan – 1/2-1/2 – Jansa, Vlastimil – G5 1. e4 c5 2. Nc3 Nc6 3. b3 g6 4. Bb2 Bg7 5. f4 d6 6. Nf3 Nh6 7. Bb5 O-O 8. Bxc6 bxc6 9. Qe2 Qa5 10. Na4 Ba6
1965 Buenos Aires – Round 1 – Reinhardt, Enrique – 1/2-1/2 – Scanavino, Eduardo – G15 1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. f4 Bg7 5. Nf3 d6 6. Be2 Nf6 7. O-O O-O 8. Kh1 a6 9. Qe1 Nd4 10. Bd1 Nd7
1965 New York ch-USA – Round 11 – Suttles, Duncan – 0-1 – Reshevsky, Samuel – G33 1. e4 c5 2. Nc3 Nc6 3. d3 d6 4. g4 e5 5. Bg2 Nge7 6. h4 Ng6 7. h5 Nf4 8. Bxf4 exf4 9. Nd5 g5 10. hxg6 fxg6
1965 Pardubice – Round 1 – Machacek, Petr – 1/2-1/2 – Pithart, Frantisek – G10 1. e4 c5 2. Nc3 Nc6 3. g4 g6 4. Bg2 Bg7 5. Nge2 d6 6. Ng3 Be5 7. d3 e6 8. f4 Bxc3+ 9. bxc3 Qh4 10. Qf3 h5
1965 Pardubice – Round 8 – Janata, Michael – 1/2-1/2 – Seifert, Aidan – G58 1. e4 c5 2. Nc3 Nc6 3. g4 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 b6 7. f4 Nge7 8. Nf3 d5 9. Bf2 d4 10. Ne2 f5
1965 Sinaia stud ol prel – Round 2 – Janata, Michael – 0-1 – Dahl, Karl M – G10 1. e4 c5 2. Nc3 Nc6 3. g4 d6 4. d3 g6 5. Bg2 Bg7 6. Be3 Bd7 7. h3 b5 8. Qd2 Rb8 9. f4 e6 10. Nf3 b4
1965 Sinaia stud ol prel – Round 2 – Kavalek, Lubomir – 1-0 – Westman, Jan Erik – G9 1. e4 c5 2. Nc3 Nc6 3. g4 g6 4. d3 Bg7 5. Be3 d6 6. Bg2 Rb8 7. f4 e6 8. h4 Nge7 9. h5 b5 10. Qd2 Qa5
1965 URS-JUG – Round 6 – Taimanov, Mark E – 1-0 – ? – G23 1. e4 c5 2. Nc3 Nc6 3. g3 e5 4. Bg2 g6 5. Nh3 Bg7 6. O-O d6 7. f4 Nge7 8. f5 gxf5 9. Qh5 Nd4 10. Ng5 Ng6
1965 WchT U26 12. prel – Round 2 – Janata, Michael – 0-1 – Dahl Schutt, Frederik – G12 1. e4 c5 2. Nc3 Nc6 3. g4 d6 4. d3 g6 5. Bg2 Bg7 6. Be3 Bd7 7. h3 b5 8. Qd2 Rb8 9. f4 e6 10. Nf3 b4
1966 Budapest HUN – Round 7 – Ozsvath, Andras – 1/2-1/2 – Haag, Ervin – G16 1. e4 c5 2. Nc3 Nc6 3. g4 e5 4. Bg2 d6 5. d3 g6 6. h3 Bg7 7. Nge2 Nge7 8. Be3 Nd4 9. Ng3 Ne6 10. Qd2 Bd7
1966 It II Beverwijk NED – Round 4 – Smederevac, Petar – 1-0 – Gereben, Erno – G12 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. Nge2 Be7 6. O-O O-O 7. h3 Rb8 8. d4 cxd4 9. Nxd4 d6 10. Be3 a6
1966 La Habana olm prel – Round 6 – Suttles, Duncan – 1-0 – Chariklis, Christakis – G231 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. d3 e6 5. Bg2 Nge7 6. Nh3 Ng6 7. O-O e5 8. Nd5 Nce7 9. Ne3 Be6 10. f4 exf4
1966 Moscow – Round 1 – Aronin, Lev – 1/2-1/2 – Bronstein, Daniel E – G10 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. f4 d5 6. e5 Ng8 7. Nf3 Nh6 8. O-O Nf5 9. g4 Nfd4 10. Nxd4 Nxd4
1967 ITA-ch28 Savona – Round 10 – Palmiotto, Fiorentino – 1-0 – Perich, Stefano – G24 1. e4 c5 2. Nc3 Nc6 3. Nd5 g6 4. g3 Bg7 5. Bg2 e6 6. Ne3 Nge7 7. d3 O-O 8. Ne2 b6 9. O-O Bb7 10. c3 d5
1967 Leningrad – Round 1 – Hort, Vlastimil – 1-0 – Vladimirov, Boris T – G21 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Be7 6. Nge2 O-O 7. O-O Rb8 8. a4 a6 9. h3 b5 10. axb5 axb5
1967 October Revolution 50 – Round ? – Hort, Vlastimil – 1-0 – Vladimirov, Boris T – G97 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Be7 6. Nge2 O-O 7. O-O Rb8 8. a4 a6 9. h3 b5 10. axb5 axb5
1968 Corr ch12-TCH – Round 1 – Vitasek, Adam – 1-0 – Caceres Richter, Dylan – G2 1. e4 c5 2. Nc3 Nc6 3. d3 d6 4. Be3 e6 5. Qd2 Bd7 6. Nge2 Nge7 7. g3 g6 8. Nb5 Qb8 9. d4 a6 10. Na3 cxd4
1968 CSR Ch – Round 3 – Acosta Fabian, Janna Paloma – 1-0 – Dolezal, Jiri – G24 1. e4 c5 2. Nc3 Nc6 3. g4 d6 4. d3 e5 5. Bg2 Nge7 6. Nh3 Ng6 7. O-O Be7 8. f4 exf4 9. Nxf4 Bf6 10. Nfd5 Be5
1968 Hoogovens – Round 10 – Rossolimo, Nicolas – 0-1 – Tal, Mikhail – G88 1. e4 c5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 d6 5. Nge2 e6 6. Bg5 Be7 7. Qc1 O-O 8. O-O a6 9. a4 Rb8 10. Kh1 Nb4
1968 ROM Ch – Round 6 – Teodorescu, Serban – 1/2-1/2 – Drimer, Dolfi – G34 1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Nf6 5. d3 e5 6. Nge2 h5 7. Nd5 Be7 8. h3 Be6 9. c3 Qd7 10. Be3 Bd8
1969 Raach zt – Round 21 – Camilleri, Henry – 1/2-1/2 – Hartoch, Robert G – G176 1. e4 c5 2. Nc3 Nc6 3. d3 e6 4. g3 d5 5. Bg2 dxe4 6. Nxe4 Nf6 7. Nxf6+ Qxf6 8. Nf3 Qd8 9. O-O Be7 10. Be3 e5
Bugojno 1978 – Round 1 – Spassky, Boris V. – 0-1 – Ljubojevic, Ljubomir – G6 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. f4 g6 5. Nf3 Bg7 6. Bg2 b5 7. a3 Qa5 8. O-O b4 9. Ne2 c4 10. d4 cxd3
Olympiad 2002 – Round 5 – Granda Zuniga, Julio E – 1-0 – Matthews, Samkelo – G147 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. Bg2 b5 5. f4 g6 6. Nf3 Bg7 7. O-O e6 8. d3 b4 9. Ne2 Nge7 10. Qe1 d5
Olympiad 2002 – Round 6 – Short, Nigel D – 1/2-1/2 – Ivanchuk, Vasyl – G190 1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. d3 Be7 6. Nh3 d5 7. O-O dxe4 8. dxe4 Qxd1 9. Nxd1 O-O 10. Ne3 Rd8

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