Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● b7→a6, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0)	● e5 (2v0)
Cases faibles	—	—
Centre	● e4 (2v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 3)
Bd7		● Bd7 Mauvais (mob. 1)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	3 (● f8, ● a8, ● h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● e4-e5	● …d6-d5

B80r — Sicilian: Scheveningen, Fianchetto Variation

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3 Nc6 7.Bg2 a6 8.O-O Bd7 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

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

Atouts. Les Blancs s'appuient sur une majorité de pions à l'aile dame (3 contre 2), un contrôle dominant de f4 et la colonne semi-ouverte d.

Côté adverse. Un mauvais fou en d7 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. a4 (24 % des parties) ; Re1 (21 % des parties) ; Be3 (Fou actif (mobilité 5), Développer c1 — 14 % des parties) ; Nxc6 (Menace d8 — 12 % des parties) ; b3 (Préparer le fianchetto — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plan principal. Exploiter l'avant-poste e5.

Atouts. Les Noirs s'appuient sur un contrôle dominant de e5, un avant-poste en e5 et la colonne semi-ouverte c.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le fou f8 et les tours a8 et h8).

Plans. ...Be7 (Développer f8 — 69 % des parties) ; ...Rc8 (Tour sur colonne semi-ouverte c — 7 % des parties) ; ...Qc7 (Prépare O-O-O — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
13. GrenkeLeasing Rapid WCh 2008 – Round 2 – Carlsen, Magnus – 1/2-1/2 – Morozevich, Alexander – G2 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g3 a6 7. Bg2 Bd7 8. O-O Nf6 9. Nce2 b5 10. a4 bxa4
1939 Stuttgart – Round 9 – Hess, Thomas – 1/2-1/2 – Eliskases, Erich – G50 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Nc6 7. Bg2 Bd7 8. O-O a6 9. b3 Qc7 10. Bb2 Be7
1940 Moskou ch-URS – Round 18 – Ragozin, Viacheslav – 0-1 – Panov, Vasily – G150 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 Nc6 7. Bg2 Bd7 8. O-O a6 9. b3 Rc8 10. Bb2 Nxd4
1946 Groningen – Round 7 – Yanofsky, Daniel Abraham – 0-1 – Kottnauer, Cenek – G32 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Nc6 7. Bg2 Bd7 8. O-O e6 9. h3 Be7 10. Nce2 Rc8
1950 Dubrovnik olm – Round 10 – Unzicker, Wolfgang – 1/2-1/2 – Najdorf, Miguel – G147 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e6 7. Bg2 Bd7 8. O-O Nc6 9. Nce2 Be7 10. c4 O-O
1951 YUG Ch 7th – Round 6 – Milic, Borislav – 1/2-1/2 – Ivkov, Borislav – G48 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 Bd7 7. Bg2 e6 8. O-O a6 9. Be3 Be7 10. h3 Qc7
1960 Balatonfured – Round 1 – Drimer, Dolfi – 0-1 – Bilek, Istvan – G2 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e6 7. Bg2 Bd7 8. O-O Nc6 9. h3 Rc8 10. Nde2 b5
1961 Torremolinos – Round 9 – Abalde Perez, Fernando Jose – 0-1 – Najdorf, Rafael – G37 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 a6 7. Bg2 Bd7 8. O-O Nc6 9. Be3 Be7 10. Qe2 Qc7
1964 Belgrade – Round 17 – Ciric, Dragoljub M – 1/2-1/2 – Ivkov, Borislav – G123 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. b3 Be7 10. Bb2 Nxd4
1964 Kiev ch-URS – Round ? – Goldenov, Boris P – 0-1 – Korchnoi, Viktor – G148 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Nc6 7. Bg2 Bd7 8. O-O e6 9. Re1 Be7 10. h3 O-O
1965 Hoogovens – Round 14 – Matanovic, Anto – 1/2-1/2 – Lengyel, Laszlo – G106 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g3 a6 7. Bg2 Bd7 8. O-O Nf6 9. b3 Nxd4 10. Qxd4 Bc6
1965 Hungary – Round 1 – Kovacs, Laszlo M – 1/2-1/2 – Bilek, Istvan – G85 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 e6 6. g3 a6 7. Bg2 Bd7 8. O-O Nf6 9. Nb3 Be7 10. Bf4 Ne5
1965 It (Men) Budapest HUN – Round 7 – Kovacs, Laszlo M – 0-1 – Szabo, Laszlo – G13 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g3 Bd7 7. Bg2 Nf6 8. O-O a6 9. b3 Be7 10. Bb2 O-O
1966 Rio Hondo zt – Round 14 – Fabian Godoy, Dhyago Fabricio – 0-1 – Acosta Garcia, Rafael Isaac – G81 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 d6 6. g3 a6 7. Bg2 Bd7 8. O-O Nf6 9. b3 Be7 10. Bb2 O-O
1967 DDR Ch 16th – Round 16 – Brameyer, Hermann – 1/2-1/2 – Malich, Burkhard, Dr. – G82 1. e4 c5 2. Nf3 d6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 Nc6 7. Bg2 Bd7 8. O-O a6 9. Kh1 Rc8 10. f4 Be7
1967 URS Team Ch – Round 1 – Zatulovskaya, Tatiana – 1-0 – Borisenko-Belova, Valentina – G79 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e6 7. Bg2 Bd7 8. O-O Nc6 9. Nce2 Qc7 10. b3 Be7
1967 Venice Venice ITA – Round 6 – Robatsch, Karl – 1-0 – Magrin, Antonio – G20 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bd7 7. Bg2 Nc6 8. O-O e6 9. Nce2 Be7 10. c4 O-O
1968 Kislovodsk – Round 1 – Gurgenidze, Bukhuti – 1/2-1/2 – Ignatiev, Felix N – G12 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 Nc6 5. Bg2 d6 6. d4 cxd4 7. Nxd4 Bd7 8. O-O Nf6 9. Nxc6 Bxc6 10. Bf4 Be7
1968 WchT U26 15. fin-B – Round 9.1 – Kagan, Shimon – 1-0 – Kazilaris, Nikolaos – G40 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Nc6 7. Bg2 Bd7 8. O-O e6 9. Nce2 e5 10. Nb3 Be7
1969 Raach zt – Round 20 – Dueckstein, Andreas – 1/2-1/2 – Adamski, Jan – G166 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 d6 6. g3 Bd7 7. Bg2 Nc6 8. O-O Nf6 9. h3 Be7 10. g4 O-O
1972 Skopje ol (Men) fin-A – Round 7 – Andersson, Ulf – 1/2-1/2 – Petrosian, Tigran V. – G265 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Re1 Be7 10. Nxc6 Bxc6
1975 URS Team Ch – Round 5 – Begun, Sergei M – 0-1 – Sveshnikov, Evgeny – G329 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. a4 Be7 10. Nxc6 Bxc6
41. Olympiad Open 2014 – Round 1.8 – Juarez Flores, Carlos A. – 0-1 – Ding, Liren – G73 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. a4 Be7 10. Nxc6 Bxc6
Amber Rapidplay 2000 – Round 4 – Lautier, Joel – 1/2-1/2 – Ljubojevic, Ljubomir – G18 1. e4 c5 2. Nc3 e6 3. Nf3 a6 4. g3 Nc6 5. Bg2 Nf6 6. O-O d6 7. d4 cxd4 8. Nxd4 Bd7 9. a4 Be7 10. Be3 O-O
Amber-rapid 15th 2006 – Round 11 – Morozevich, Alexander – 1/2-1/2 – Van Wely, Loek – G15 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 Nc6 5. Bg2 Nf6 6. O-O d6 7. d4 cxd4 8. Nxd4 Bd7 9. Nce2 Rc8 10. c4 Nxd4
Belgrade 1989 – Round 1 – Popovic, Patrik – 0-1 – Short, Nigel D – G17 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. a4 Be7 10. Nb3 O-O
Bugojno 1980 – Round 2 – Kavalek, Lubomir – 1/2-1/2 – Tal, Mikhail – G8 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Re1 Be7 10. Nxc6 Bxc6
Bugojno 1980 – Round 9 – Tal, Mikhail – 1/2-1/2 – Polugaevsky, Lev – G35 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Re1 Be7 10. Nxc6 Bxc6
Corus A 2005 – Round 12 – Bruzon Batista, Lazaro – 1/2-1/2 – Svidler, Peter – G78 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g3 Nf6 7. Bg2 Bd7 8. O-O a6 9. Nxc6 Bxc6 10. a4 Be7
EU-Cup 24th 2008 – Round 6 – Movsesian, Sergei – 1/2-1/2 – Zvjaginsev, Vadim – G72 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g3 a6 7. Bg2 Bd7 8. O-O Nf6 9. Re1 Be7 10. Nxc6 Bxc6
GRENKE Chess Classic 2019 – Round 6.4 – Aronian, Levon – 1/2-1/2 – Keymer, Vincent – G29 1. e4 c5 2. Nc3 a6 3. Nge2 d6 4. g3 Nf6 5. Bg2 Nc6 6. O-O e6 7. d4 cxd4 8. Nxd4 Bd7 9. Re1 Be7 10. Nxc6 Bxc6
Jakarta / Yogya / Bali 1983 – Round 13 – Wahjuwidajat, Utut Adianto – 0-1 – Andersson, Ulf 1949 – G38 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Be3 Be7 10. a4 O-O
Lindores Abbey Tal Memorial 2021 – Round 10.28 – Matlakov, Maxim – 1-0 – Sasikiran, Krishnan – G443 1. e4 c5 2. Nf3 d6 3. Nc3 a6 4. g3 Nc6 5. d4 cxd4 6. Nxd4 Bd7 7. Bg2 Nf6 8. O-O e6 9. b3 Be7 10. Bb2 O-O
London P&D/GLC Kings 1984 – Round 1 – Timman, Jan H – 1/2-1/2 – Polugaevsky, Lev – G7 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Nxc6 Bxc6 10. a4 Be7
Manila Interzonal 1976 – Round 16 – Mariotti, Sergio – 1/2-1/2 – Polugaevsky, Lev – G70 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Nce2 Rc8 10. Re1 Be7
Niksic 1983 – Round 14 – Sax van der Weijden, Daan – 1/2-1/2 – Tal, Mikhail – G91 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. a4 Be7 10. Nde2 O-O
Niksic 1983 – Round 14 – Sax, Gyula – 1/2-1/2 – Tal, Mikhail – G92 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. a4 Be7 10. Nde2 O-O
Tal Memorial Blitz 2008 – Round 16 – Alekseev, Evgeny – 1/2-1/2 – Morozevich, Alexander – G129 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g3 a6 7. Bg2 Bd7 8. O-O Nf6 9. Nxc6 Bxc6 10. a4 b5
TCh-RUS 2005 – Round 10 – Alekseev, Evgeny – 1/2-1/2 – Svidler, Peter – G168 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Nxc6 Bxc6 10. a4 Be7
URS Team Ch Moscow 1972 – Round ? – Gufeld, Eduard – 1/2-1/2 – Petrosian, Tigran V – G33 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 d6 5. Bg2 Nc6 6. O-O Nf6 7. d4 cxd4 8. Nxd4 Bd7 9. Nde2 Be7 10. h3 b5
Wch candidates qf 1980 – Round 6 – Tal, Mikhail – 1/2-1/2 – Polugaevsky, Lev – G6 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. b3 Be7 10. Nce2 Rc8
Wch candidates reserve 1983 – Round 5 – Tal, Mikhail – 1/2-1/2 – Andersson, Ulf 1949 – G3 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. Re1 Be7 10. Nxc6 Bxc6
World Blitz 2015 – Round 1.74 – Safarli, Elmir – 1-0 – Ladva, Ottomar – G63 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 Nc6 5. Bg2 d6 6. O-O Nf6 7. d4 cxd4 8. Nxd4 Bd7 9. Nxc6 Bxc6 10. a4 Be7
World Blitz 2021 – Round 21.68 – Volokitin, Andrei – 1/2-1/2 – Blohberger, Felix – G1254 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Bd7 7. Bg2 Nc6 8. O-O e6 9. b3 Be7 10. Bb2 O-O
World Blitz 2023 – Round 19.27 – Guseinov, Gadir – 1/2-1/2 – Yakubboev, Nodirbek – G1081 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. g3 d6 7. Bg2 Bd7 8. O-O a6 9. Nxc6 Bxc6 10. a4 Be7
World Blitz Final 2012 – Round 10 – Chadaev, Nikolai – 1/2-1/2 – Svidler, Peter – G74 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. a4 Be7 10. Nb3 Na5
World Cup 1989 – Round 1 – Huebner, Robert – 1/2-1/2 – Illescas Cordoba, Miguel – G48 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. O-O Nf6 9. a4 Nxd4 10. Qxd4 Qc7

B80r — Scheveningen, Fianchetto Variation (1939)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g3 Nc6 7.Bg2 a6 8.O-O Bd7

Les coups candidats

9.a4 — 23.6% (342 parties)

Ambassadeurs : De Firmian, Nick (10x), Popovic, Petar (5x), Kruszynski, Wlodzimierz (4x), Ogaard, Leif (4x), Illescas Cordoba, Miguel (4x), ? (4x), Tal, Mikhail (3x), Sax, Gyula (3x)

9.Re1 — 21.0% (304 parties)

Ambassadeurs : Jansa, Vlastimil (13x), Schmidt, Wlodzimierz (11x), Popovic, Petar (8x), Suetin, Alexey S (6x), Kruszynski, Wlodzimierz (5x), Vogt, Lothar (5x), Tal, Mikhail (3x), Doda, Zbigniew (3x)

9.Be3 — 14.3% (208 parties)

Ambassadeurs : Ubilava, Elizbar (4x), Schmidt, Wlodzimierz (3x), Banas, Jan (3x), Kinnmark, Ove (2x), Vasiukov, Evgeni (2x), Doda, Zbigniew (2x), Kholmov, Ratmir D (2x), Olson, Scott (2x)

9.Nxc6 — 11.9% (173 parties)

Ambassadeurs : Nunn, John D M (3x), Barczay, Laszlo (3x), Safarli, Eltaj (3x), Andersson, Ulf (2x), Horvath, Tamas (2x), Razuvaev, Yuri S (2x), Matulovic, Milan (2x), Carlsen, Magnus (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.a4	9.Re1	9.Be3	9.Nxc6
<1800	17	24%	6%	41%	6%
1800-2200	284	25%	17%	24%	7%
2200-2600	969	25%	23%	11%	13%
2600+	69	26%	13%	10%	20%

Évolution par décennie (% des parties)

Décennie	N parties	9.a4	9.Re1	9.Be3	9.Nxc6
1950s	6	—	—	17%	—
1960s	21	—	5%	5%	5%
1970s	149	9%	34%	14%	5%
1980s	211	23%	30%	6%	16%
1990s	307	30%	14%	15%	12%
2000s	341	30%	18%	15%	10%
2010s	303	18%	22%	19%	12%
2020s	112	25%	16%	15%	23%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.a4	18%	25%	▲ +6.8%
9.Re1	22%	16%	▼ -6.0%
9.Be3	19%	15%	▼ -3.6%
9.Nxc6	12%	23%	▲ +11.7%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 8 parties
Carlsen, Magnus — 3 parties
Gukesh D — 3 parties
Kasparov, Garry — 1 partie
Karpov, Anatoly — 1 partie
Anand, Viswanathan — 1 partie
Ding, Liren — 1 partie
Hou, Yifan — 1 partie

Parties historiques

9.a4 — 23.6% (342 parties)

1973 — Kagan, Shimon vs Panno, Oscar — 0-1 — Petropolis izt
1973 — Hug, Werner vs Hamann, Svend — 1/2-1/2 — Las Palmas ESP
1973 — Kinnmark, Ove vs Jansson, Borje — 1/2-1/2 — SWE-ch Bollnas
1975 — Babenko, S vs Sveshnikov, Evgeny — 0-1 — Riga LAT
1975 — Ostojic, Predrag vs Suetin, Alexey S — 1/2-1/2 — Yugoslavia

9.Re1 — 21.0% (304 parties)

1964 — Goldenov, Boris P vs Korchnoi, Viktor — 0-1 — Kiev ch-URS
1971 — Ostojic, Predrag vs Sofrevski, Jovan — 1/2-1/2 — Skopje MKD
1971 — Ghinda, Mihail-Viorel vs Bobotsov, Milko G — 0-1 — Bucharest ROU
1971 — Kostro, Jerzy vs Honfi, Karoly — 1-0 — Luhacovice CZE
1971 — Browne, Walter Shawn vs Bobotsov, Milko G — 1-0 — Amsterdam NED

9.Be3 — 14.3% (208 parties)

1951 — Milic, Borislav vs Ivkov, Borislav — 1/2-1/2 — Sarajevo BIH
1961 — Perez Perez, Francisco Jose vs Miguel, Nahuel — 0-1 — Torremolinos ESP
1970 — Lanc, Alois vs Jankovec, Ivan — 1/2-1/2 — Havirov CZE
1970 — Adorjan, Andras vs Velikov, Petar — 1-0 — Groningen ch-EU jr
1971 — Ubilava, Elizbar vs Karpov, Anatoly — 1/2-1/2 — 11, Daugavpils ch-URS

9.Nxc6 — 11.9% (173 parties)

1968 — Gurgenidze, Bukhuti vs Ignatiev, Felix N — 1/2-1/2 — Kislovodsk
1970 — Faibisovich, Vadim Z vs Bykov, Vladimir — 1-0 — Dnepropetrovsk
1970 — Nicevski, Risto vs Sofrevski, Jovan — 1/2-1/2 — Skopje MKD
1972 — Barreras, Alberto vs Lebredo Zaragoitia, Gerardo — 1-0 — Cienfuegos City CUB
1977 — Radev, Nikolai vs Doda, Zbigniew — 0-1 — Lublin POL

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