B74c — Sicilian: Dragon, Classical, Alekhine Variation

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3 a5 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité aile_dame (3v2), case forte d4, case forte b5, case forte d5, Be2 actif, Be3 actif, paire de fous, colonne d.
Faiblesses adverses : arriéré b7, Bg7 enfermé, Bc8 enfermé.
Plans :
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), case forte b4, case forte g4, case forte e5, avant-postes b4(C), e5(C), paire de fous, colonne c.
Problèmes : Bg7 enfermé, Bc8 enfermé, arriéré b7.
Plans :
● ...Bf5 — Développer Bc8
● ...d5 — Rupture
● ...e6 — Rupture
● ...e5 — Rupture
● ...Rc — Tour sur colonne c

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B74c — Dragon Classical Alekhine Variation

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.O-O O-O 9.Nb3 a5

Eval: [+0.18]

Les coups candidats

10.a4 — 83.8% (363 parties)

Ambassadeurs : Eliskases, Erich (4x), Yanofsky, Daniel Abraham (3x), Korchnoi, Viktor (3x), Donovan, Jeremiah (3x), Aitken, James (3x), Mednis, Edmar J (3x), Kiefer, Gerhard (3x), Santasiere, Anthony (2x)

10.a3 — 7.6% (33 parties)

Ambassadeurs : Gushuliak Justin (2x), Courte, Sylvain (1x), Strehle, Ernst (1x), Vasiukov, Evgeni (1x), Beilin, Mikhail (1x), Romanovsky, Rem Konstantinovich (1x), Gufeld, Eduard (1x), Huicab Puc, Angel Gamaliel (1x)

10.f4 — 4.4% (19 parties)

Ambassadeurs : Bisguier, Arthur B (1x), Daly, Harlow Bussey (1x), Tiszay (1x), Ozsvath, David (1x), Anderson Charles (1x), Pilnick, Carl (1x), Asker, Sven (1x), Jackson, John Alexander (1x)

10.h3 — 1.2% (5 parties)

Ambassadeurs : Myagmarsuren, Lkhamsuren (1x), Soos, Balint (1x), Ralle, Paul (1x), Fournier Le Ray, Pierre (1x), Ramis Roser, Miguel (1x), Fiol Company, Juan (1x), Dionizio, Andre Filipe Nascimento (1x), Silva, Goncalo Nuno Neto Pires (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.a4	10.a3	10.f4	10.h3
<1800	6	67%	—	33%	—
1800-2200	129	81%	5%	5%	3%
2200-2600	142	88%	10%	1%	—
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	10.a4	10.a3	10.f4	10.h3
1930s	11	91%	9%	—	—
1940s	25	92%	—	4%	—
1950s	21	67%	14%	14%	—
1960s	29	90%	7%	—	3%
1970s	27	74%	19%	4%	—
1980s	33	100%	—	—	—
1990s	72	83%	7%	7%	1%
2000s	113	87%	4%	4%	—
2010s	96	79%	10%	4%	3%
2020s	6	50%	33%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.a4	79%	50%	▼ -29.2%
10.a3	10%	33%	▲ +22.9%
10.f4	4%	0%	▼ -4.2%
10.h3	3%	0%	▼ -3.1%

Joueurs célèbres

Champions du monde dans cette position

Alekhine, Alexander — 1 partie
Hou, Yifan — 1 partie

Parties historiques

10.a4 — 83.8% (363 parties)

1937 — Balogh Moran, Andres vs Weiss, Adam — 0-1 — IFSB
1937 — Bogoljubow, Efim vs Weichert, P — 1-0 — Bad Saarow
1938 — Spielmann, Rudolf vs Alekhine, Alexander — 1/2-1/2 — Margate ENG
1938 — Gromer, Aristide vs Baulier, A. — 1-0 — Nice FRA
1938 — Castaldi, Vincenzo vs Staehelin, Adolf — 1-0 — Lausanne SUI

10.a3 — 7.6% (33 parties)

1936 — Courte, Sylvain vs Strehle, Ernst — 0-1 — Munich GER
1951 — Seiffert, Ronny Steffen vs Rathai, Volker — 1-0 — Schwerin GER
1955 — Vasiukov, Evgeni vs Beilin, Mikhail — 1/2-1/2 — Moscow RUS
1956 — Romanovsky, Rem Konstantinovich vs Gufeld, Eduard — 1-0 — Kiev UKR
1969 — Huicab Puc, Angel Gamaliel vs Damjanovic, Adam — 1-0 — Ljubljana

10.f4 — 4.4% (19 parties)

1948 — Bisguier, Arthur B vs Daly, Harlow Bussey — 1-0 — Baltimore, MD USA
1951 — Asker, Sven vs Jackson, John Alexander — 1/2-1/2 — Birmingham/Coventry
1952 — Tiszay vs Ozsvath, David — 0-1 — Szeged HUN
1955 — Anderson Charles vs Pilnick, Carl — 0-1 — Long Beach, CA USA
1973 — Wood, Alex vs Berry, Jonathan — 0-1 — Vancouver BC CAN

10.h3 — 1.2% (5 parties)

1962 — Myagmarsuren, Lkhamsuren vs Soos, Balint — 0-1 — Varna BUL
1993 — Ralle, Paul vs Fournier Le Ray, Pierre — 1-0 — Paris op Paris FRA
2012 — Ramis Roser, Miguel vs Fiol Company, Juan — 0-1 — Palma de Majorca ESP
2014 — Dionizio, Andre Filipe Nascimento vs Silva, Goncalo Nuno Neto Pires — 0-1 — Luso
2018 — Kapusta, Petr vs Weissmann, Lukas — 1/2-1/2 — Czech Republic CZE

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● b7
Chaînes	—	● e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (3v1), ● b5 (2v0), ● d5 (3v1)	● b4 (2v0), ● g4 (2v1), ● e5 (2v0)
Cases faibles	—	—
Centre	● d4 (3v1), ● d5 (3v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Actif (mob. 7)
Be3	● Be3 Actif (mob. 9)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e4-e5, ● f2-f3	● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1937 Bad Saarow – Round 8 – Bogoljubow, Efim – 1-0 – Weichert, P – G26 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. Nb3 a5 10. a4 Be6
1938 FRA Ch – Round 3 – Gromer, Aristide – 1-0 – Baulier, A. – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. Nb3 a5 10. a4 Bd7
1938 Margate – Round 7 – Spielmann, Rudolf – 1/2-1/2 – Alekhine, Alexander – G35 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1939 Amsterdam VARA – Round 5 – Cortlever, Nico – 1/2-1/2 – Landau, Salo – G13 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Nb3 O-O 9. Be3 a5 10. a4 Be6
1940 Ventnor City – Round 10 – Burdge, Harold – 0-1 – Bernstein, Sidney – G38 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Nb3 O-O 9. O-O a5 10. a4 Nb4
1941 New York – Round 1 – Collins, John W – 1/2-1/2 – Santasiere, Anthony – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1941 New York – Round 1 – Finkelstein, Milton – 0-1 – Santasiere, Anthony – G12 1. e4 c5 2. d4 cxd4 3. Nf3 d6 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Nb3 O-O 9. Be3 a5 10. a4 Be6
1941 New York – Round 2 – Horowitz, Albert Israel – 1/2-1/2 – Reshevsky, Samuel – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Nb3 Nc6 9. Be3 a5 10. a4 Be6
1941 New York – Round 4 – Horowitz, Albert Israel – 1/2-1/2 – Reshevsky, Samuel – G28 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 a5 10. a4 Be6
1941 Ventnor City – Round 1 – Bernstein, Sidney – 1/2-1/2 – Reinfeld, Fred – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 a5 10. a4 Be6
1942 Ventnor City – Round 2 – Yanofsky, Daniel Abraham – 1-0 – Donovan, Jeremiah – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1943 Prague – Round 16 – Florian, Jaromir – 1-0 – Prucha, Karel – G131 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Nb3 O-O 9. O-O a5 10. a4 Nb4
1945 AUS Ch – Round 9.2 – Wade, Robert G – 1-0 – Salm, Maxwell – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1946 Barcelona – Round 5 – Wood, Gabriel – 1/2-1/2 – Cherta, Pedro – G34 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 O-O 8. O-O Nc6 9. Nb3 a5 10. a4 Be6
1946 Hastings4647 – Round 3 – Yanofsky, Daniel Abraham – 1-0 – Aitken, James – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 O-O 9. Nb3 a5 10. a4 Be6
1946 London-A – Round 4 – Steiner, Heinrich Jun. – 1-0 – Golombek, Harry – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 O-O 9. Nb3 a5 10. a4 Be6
1947 Leningrad – Round 1 – Vasilchuk, Yuri – 0-1 – Korchnoi, Viktor – G6 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 O-O 8. O-O Nc6 9. Nb3 a5 10. a4 Be6
1947 Nt – Round 10 – Wildschuetz Theo – 0-1 – Ernst, Wilhelm – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1947 Nt – Round 4 – Rellstab, Ludwig – 1-0 – Ernst, Wilhelm – G10 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. Nb3 a5 10. a4 Be6
1948 US Open – Round 7 – Bisguier, Arthur B – 1-0 – Daly, Harlow Bussey – G40 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. Nb3 a5 10. f4 a4
1949 GER Ch 13th – Round 1 – Pfeiffer, Gerhard – 1-0 – Wittenberg Helmut – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1949 Mar del Plata – Round 15 – Corte, Cesar J – 0-1 – Eliskases, Erich – G130 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 O-O 8. O-O Nc6 9. Nb3 a5 10. a4 Be6
1949 Stevenson Mem SCCU Ch – Round 1 – Woodthorpe, Ralph Carter – 0-1 – Aitken, James – G1 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 a5 10. a4 Be6
1950 Schiavno Zdroj – Round 1 – Keres, Paul Petrovich – 1/2-1/2 – Averbakh, Yuri L – G63 1. e4 c5 2. Ne2 Nc6 3. Nbc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Be2 Nf6 8. O-O O-O 9. Nb3 a5 10. Nd2 a4
1951 San Rafael – Round ? – Kalkstein, Rodolfo – 0-1 – Eliskases, Erich – G42 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. Nb3 O-O 9. O-O a5 10. a4 Be6
1951 San Rafael – Round ? – Toran Albero, Roman – 1/2-1/2 – Eliskases, Erich – G40 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 O-O 8. O-O Nc6 9. Nb3 a5 10. a4 Be6
1951 Schlechter Memorial – Round ? – Beni, Alfred – 1-0 – Vidmar, Milan Jr – G14 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3 O-O 9. Nb3 a5 10. a4 Be6
1951 YUG Ch 7th – Round 13 – Janosevic, Dragoljub – 0-1 – Fuderer, Andrija – G108 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. Nb3 a5 10. a4 Nb4
1952 Helsinki olm – Round 1 – Beni, Alfred – 1/2-1/2 – Trifunovic, Petar – G187 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1955 Buenos Aires – Round 1 – Laurencena Lopez, Gustavo Adrian – 0-1 – Eliskases, Erich – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3 a5 10. a4 Be6
1955 Moscow Ch – Round 1 – Vasiukov, Evgeni – 1/2-1/2 – Beilin, Mikhail – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O O-O 9. Nb3 a5 10. a3 a4
1956 Corr Dyckhoff Memorial – Round 1 – Holecek, Dominik – 1-0 – De Meyer, Alexander – G9 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1957 USA Ch Open 58th – Round 2 – Cotter, Len – 0-1 – Mednis, Edmar J – G12 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 d6 7. Be2 Nf6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1957 USA Ch Open 58th – Round 4 – Donovan, Jeremiah – 0-1 – Mednis, Edmar J – G29 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1959 Wch U20 prel-A – Round 4 – Erny, Walter – 0-1 – Parma, Bruno – G8 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 O-O 8. O-O Nc6 9. Nb3 a5 10. a4 Be6
1960 Leningrad tt – Round 6 – Momo, Suren – 0-1 – Nikitin, Aleksander S – G81 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Be3 O-O 9. Nb3 a5 10. a4 Be6
1960 Leningrad tt – Round 9 – Van Humbeek – 0-1 – Nikitin, Aleksander S – G116 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. O-O Bg7 8. Nb3 O-O 9. Be3 a5 10. a4 Be6
1962 Varna olm – Round 5 – Myagmarsuren, Lkhamsuren – 0-1 – Soos, Balint – G228 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 Bg7 7. Be3 O-O 8. Nb3 d6 9. O-O a5 10. h3 a4
1963 Moscow RUS – Round ? – Kremenietsky, Anatoly A. – 1-0 – Ignatiev, Felix N – G35 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nb3 d6 8. Be2 O-O 9. O-O a5 10. a4 Be6
1964 Open – Round 7 – Henin, Charles – 1-0 – Blackstone, John – G11 1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Nb3 O-O 8. Be2 d6 9. O-O a5 10. a4 Nb4
1964 Tel Aviv olm fin-B – Round 8 – Garces, Napoleon – 0-1 – Brinck-Claussen, Bjorn – G26 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. Nb3 O-O 9. O-O a5 10. a4 Be6
1965 Rio de Janeiro – Round 1 – Barcala Lemos, Pablo – 0-1 – Averbakh, Yuri L – G9 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1966 La Habana ol (Men) fin-B – Round 10 – Glauser, Hansruediger – 1/2-1/2 – Keene, Raymond D – G11 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1966 Titovo Uzice – Round 1 – Janosevic, Dragoljub – 1/2-1/2 – Averbakh, Yuri L – G45 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1966 WECU-ch21 – Round 1 – Aitken, James – 1/2-1/2 – Garside, Rolf – G1 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nb3 O-O 8. Be2 d6 9. O-O a5 10. a4 Be6
1968 Belgrade – Round 1 – Dely, Peter – 0-1 – Velimirovic, Dragoljub – G36 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1968 Hoogovens – Round 11 – Van Geet, Dirk Daniel – 0-1 – Korchnoi, Viktor – G98 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Bg7 7. Be2 Nc6 8. O-O O-O 9. Nb3 a5 10. a4 Be6
1969 WchT U26 fin-A 16th – Round 9.3 – Kolbak, Jens – 1/2-1/2 – Ljubojevic, Ljubomir – G62 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. Nb3 a5 10. a4 Be6

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