E11f — Bogo-Indian: 4.Nbd2 O-O 5.a3 Be7

1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 O-O 5.a3 Be7 *   ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bBFou enfermé — mobilité 0
bQ
bR
bK
bP
bP
bP
bP
bB
bP
bP
bP
bP
bN
Case forte (2v0)
wP
wPPion central
wP
wN
wP
wN
wP
wP
wP
wP
wR
wB
wQ
wK
wB
wR
abcdefgh
Atouts. Les Blancs s'appuient sur la case forte e5 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

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
wR
wBFou enfermé — mobilité 0
wKRoi au centre — doit roquer
wQ
wBFou enfermé — mobilité 0
wR
wP
wP
wP
wP
wN
wP
wN
wP
wP
wP
bN
bP
bP
bP
bP
bBFou actif — mobilité 4
bP
bP
bP
bP
bK
bR
bQ
bB
bN
bR
hgfedcba
Atouts. Les Noirs s'appuient sur un fou actif en e7 et la paire de fous.

Côté adverse. 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) ; ...Bg4 (Clouer Nf3) ; ...c5 (Rupture) ; ...d5 (Rupture).
Avantages
Faiblesses adverses
Diagonale active
Plans

Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● b2→a3 ● d7→e6, f7→e6
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● e5 (2v0)
Cases faibles
Centre ● d4 (1v0), ● e5 (2v0) ● d5 (2v1)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 0)
Bf1 ● Bf1 Non développé (mob. 0)
Be7 ● Be7 Actif (mob. 4)
Bc8 ● Bc8 Non développé (mob. 0)
Paire de fous ● Oui ● Oui
Non développées 4 (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, ● e2-e3 ● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e6-e5
Partie
11. Norway Blitz 2023 – Round 1.2 – So, Wesley – 1/2-1/2 – Nakamura, Hikaru – G2
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nc6 8. O-O e5 9. d5 Nb8 10. b4 c6
11. Norway Blitz 2023 – Round 7.2 – Gukesh D – 1/2-1/2 – Nakamura, Hikaru – G31
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nc6 8. O-O a5 9. b3 e5 10. d5 Nb8
1925 Debrecen – Round 1 – Gruenfeld, Ernst – 1/2-1/2 – Prokes, Ladislav – G45
1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e3 c5 7. dxc5 Bxc5 8. b4 Be7 9. Bb2 d6 10. Bd3 Nbd7
1925 DSB-24.Kongress – Round 5 – Gruenfeld, Ernst – 0-1 – Bogoljubow, Efim – G17
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e3 d5 7. Bd3 Nbd7 8. O-O c5 9. Qe2 cxd4 10. exd4 b6
1931 New York – Round 5 – Dake, Arthur William – 0-1 – Horowitz, Albert Israel – G43
1. Nf3 Nf6 2. c4 e6 3. d4 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. g3 d6 7. Bg2 Nc6 8. b4 Re8 9. Bb2 Bf8 10. b5 Nb8
1932 Trebitsch mem15 – Round 6 – Hoenlinger, Baldur – 1-0 – Podhorzer, David – G13
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. g3 b6 7. Bg2 Bb7 8. Qc2 d5 9. cxd5 exd5 10. O-O Nbd7
1963 Capablanca Memorial – Round 12 – Bobotsov, Milko G – 1/2-1/2 – Acevedo Ortega, Rodrigo Andres – G111
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 c5 7. e5 Ne8 8. dxc5 f6 9. Bd3 f5 10. b4 a5
1966 Sochi – Round 10 – Bertok, Mario Jr. – 1/2-1/2 – Acosta Ortega, Luis Edgardo – G35
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e3 c5 7. Bd3 b6 8. O-O d5 9. b3 Bb7 10. Bb2 Ne4
1966 Sochi – Round 14 – Antoshin, Vladimir S – 1-0 – Acosta Ortega, Luis Edgardo – G42
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e3 b6 7. Bd3 d5 8. b3 Nbd7 9. O-O Bb7 10. Bb2 a5
1967 URS-ch35 – Round 1 – Zaitsev, Aleksandr – 0-1 – Polugaevsky, Lev – G39
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. g3 b6 7. Bg2 Bb7 8. O-O c5 9. b3 d5 10. cxd5 exd5
1969 WchT U26 fin-A 16th – Round 5.4 – Pollak, Georg – 1/2-1/2 – Giorgadze, Tamaz – G35
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. g3 b6 7. Bg2 Bb7 8. O-O d5 9. Ne5 c5 10. cxd5 Bxd5
20. European Teams 2015 – Round 1.8 – Schachinger, Manuel – 1/2-1/2 – Bartel, Mateusz – G51
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Bd3 c5 8. d5 Nbd7 9. O-O Ng4 10. Rb1 Bf6
20. European Teams 2015 – Round 2.8 – Karttunen, Mika – 0-1 – Balogh Urbina, Carlos Alfonso – G99
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e3 b6 7. Bd3 c5 8. O-O Bb7 9. e4 cxd4 10. Nxd4 d6
2026 Tata Steel India Blitz - Round 14.5 - Wei, Yi - 1-0 - Praggnanandhaa R - G70
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Bd3 e5 8. O-O exd4 9. Nxd4 Re8 10. f4 a5
2026 Tata Steel India Blitz - Round 17.4 - Wei, Yi - 1-0 - Aravindh, Chithambaram VR. - G84
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Bd3 e5 8. O-O a5 9. b3 exd4 10. Nxd4 Nfd7
42. Olympiad 2016 – Round 3.9 – Ding, Liren – 1/2-1/2 – Leitao, Rafael – G236
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 c5 8. d5 e5 9. O-O Nbd7 10. Ne1 Ne8
42. Olympiad 2016 – Round 5.21 – Carlsen, Magnus – 1-0 – Winants, Luc – G346
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 c5 8. d5 exd5 9. cxd5 Re8 10. O-O Bf8
42. Olympiad 2016 – Round 9.45 – Salem, A.R. Saleh – 1-0 – Winants, Luc – G656
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 c5 8. d5 exd5 9. cxd5 Re8 10. O-O Bf8
Champions Showdown Blitz 2016 – Round 11.1 – Nakamura, Hikaru – 0-1 – Caruana, Fabiano – G21
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Bd3 Nbd7 8. b4 e5 9. d5 a5 10. Rb1 axb4
FIDE Candidates 2013 – Round 1.2 – Gelfand, Boris – 1/2-1/2 – Radjabov, Teimour – G2
1. d4 e6 2. c4 Bb4+ 3. Nd2 Nf6 4. Nf3 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nbd7 8. b4 e5 9. Bb2 a5 10. O-O exd4
FIDE World Blitz Championship 2014 – Round 5.22 – Aronian, Levon – 1-0 – Georgiev, Kiril – G36
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Bd3 Nbd7 8. b3 e5 9. Bb2 Re8 10. O-O Bf8
FIDE World Cup 2015 – Round 2.6 – Nguyen, Ngoc Truong Son – 1/2-1/2 – Tomashevsky, Evgeny – G303
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e3 c5 7. dxc5 a5 8. e4 Nc6 9. e5 Ng4 10. Ne4 b6
FIDE World Rapid Championship 2025 – Round 3 – Carlsen Magnus – 1-0 – Iturrizaga Bonelli Eduardo – G41
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nfd7 8. Nf1 c5 9. Ng3 cxd4 10. Nxd4 a6
GCT Blitz Paris 2019 – Round 9.4 – Grischuk, Alexander – 1/2-1/2 – Caruana, Fabiano – G44
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 c5 8. d5 Nbd7 9. Qc2 Re8 10. O-O Nf8
GCT Blitz YourNextMove 2016 – Round 13.5 – Vachier-Lagrave, Maxime – 0-1 – Carlsen, Magnus – G65
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Bd3 c5 8. d5 Nbd7 9. O-O e5 10. b4 a5
Qatar Masters Open 2015 – Round 8.17 – Wojtaszek, Radoslaw – 1-0 – Bartel, Mateusz – G264
1. d4 e6 2. c4 Bb4+ 3. Nd2 Nf6 4. Nf3 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nbd7 8. Qc2 c5 9. O-O cxd4 10. Nxd4 Qc7
Saint Louis Rapid 2019 – Round 8.1 – Karjakin, Sergey – 1-0 – Carlsen, Magnus – G36
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nbd7 8. Qc2 c5 9. d5 e5 10. Nf1 a6
Tal Memorial Blitz 2014 – Round 13.6 – Grischuk, Alexander – 1/2-1/2 – Tomashevsky, Evgeny – G78
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nbd7 8. Qc2 c5 9. d5 Ng4 10. b3 Bf6
Tashkent FIDE GP 2014 – Round 1.3 – Nakamura, Hikaru – 1-0 – Jobava, Baadur – G3
1. d4 e6 2. c4 Bb4+ 3. Nd2 Nf6 4. a3 Be7 5. Ngf3 O-O 6. e4 d6 7. Bd3 e5 8. O-O exd4 9. Nxd4 Nc6 10. Nxc6 bxc6
Tata Steel India Blitz 2022 – Round 2.1 – Mamedyarov, Shakhriyar – 1-0 – Praggnanandhaa R – G5
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Qc2 Nfd7 8. b3 e5 9. Bb2 exd4 10. Nxd4 Bf6
Wijk aan Zee NED, Tata Steel GpA 2015 – Round 7.3 – Wojtaszek, Radoslaw – 0-1 – Jobava, Baadur – G14
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 c5 8. b3 cxd4 9. Nxd4 b6 10. O-O Bb7
World Blitz 2015 – Round 21.58 – Adhiban, B. – 1-0 – Riff, Jean-Noel – G1333
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. b3 e5 8. Bb2 exd4 9. Nxd4 Nc6 10. Bd3 Nd7
World Blitz 2015 – Round 5.67 – Vidit, Santosh Gujrathi – 0-1 – Riff, Jean-Noel – G330
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 e5 8. dxe5 dxe5 9. Nxe5 Re8 10. Nef3 Bc5
World Blitz 2017 – Round 14.47 – Potkin, Vladimir – 0-1 – Moiseenko, Alexander – G751
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nfd7 8. Nb1 e5 9. d5 a5 10. Nc3 Nc5
World Blitz 2018 – Round 18.30 – Esipenko, Andrey – 1-0 – Najer, Evgeniy – G1065
1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nc6 8. b4 e5 9. d5 Nb8 10. O-O Ne8
World Blitz 2019 – Round 1.19 – Korobov, Anton – 1/2-1/2 – Gasanov, Eldar – G11
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. b4 d5 7. e3 b6 8. c5 a5 9. Bb2 bxc5 10. bxc5 Nc6
World Blitz 2019 – Round 10.14 – Giri, Anish – 1-0 – Iturrizaga Bonelli, Eduardo – G660
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nbd7 8. Qc2 e5 9. Nb1 exd4 10. Nxd4 Re8
World Blitz 2019 – Round 15.50 – Melkumyan, Hrant – 0-1 – Bartel, Mateusz – G1026
1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 c5 8. O-O cxd4 9. Nxd4 Nc6 10. N4f3 a5
World Blitz 2019 – Round 3.18 – Grischuk, Alexander – 1-0 – Yuffa, Daniil – G167
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 c5 8. d5 exd5 9. cxd5 Bg4 10. Qc2 Re8
World Blitz 2021 – Round 11.37 – Indjic, Aleksandar – 1-0 – Riazantsev, Alexander – G659
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 a5 8. O-O a4 9. Qc2 Nc6 10. d5 Ne5
World Blitz 2022 – Round 17.50 – Alonso Rosell, Alvar – 1-0 – Tomashevsky, Evgeny – G919
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nbd7 8. Qc2 c5 9. d5 Re8 10. dxe6 fxe6
World Cup 1988 – Round 1 – Ribli, Zoltan – 1-0 – Petursson, Magnus V. – G37
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. g3 b6 7. Bg2 Bb7 8. O-O c5 9. dxc5 bxc5 10. b3 d5
World Rapid 2016 – Round 8.43 – Al-Sayed, Mohammed – 0-1 – Mareco, Sandro – G320
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Be2 Nbd7 8. O-O c5 9. Qc2 cxd4 10. Nxd4 Qb6
World Rapid 2019 – Round 2.31 – Cheparinov, Ivan – 1/2-1/2 – Samsonkin, Artiom – G102
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Qc2 Nfd7 8. Be2 a5 9. b3 e5 10. Bb2 exd4
World Rapid 2021 – Round 4.61 – Nguyen, Thai Dai Van – 0-1 – Kovalev, Vladislav – G247
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 7. Qc2 Nfd7 8. Nb1 e5 9. Nc3 Nc6 10. Be3 Bf6
E11f —
1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 O-O 5.a3 Be7
Eval: [+0.29]
Les coups candidats
6.e4 — 77.8% (2459 parties)
Ambassadeurs : Tomashevsky, Evgeny (13x), Maletin, Pavel (12x), Cheparinov, Ivan (12x), Moiseenko, Alexander (12x), De Filippis, Francesco (12x), Gelfand, Boris (12x), Mareco, Sandro (12x), Wahls, Matthias (11x)
6.e3 — 11.6% (368 parties)
Ambassadeurs : Vorobiov, Evgeny E. (6x), Simantsev, Mikhail (5x), Malaniuk, Vladimir P (4x), Gunina, Valentina (4x), Gruenfeld, Ernst (3x), Nikolic, Predrag (3x), Inkiov, Ventzislav (3x), Wahls, Matthias (3x)
6.g3 — 7.0% (220 parties)
Ambassadeurs : Cebalo, Miso (6x), Chloupek, Stanislav (3x), Laurusas, Tomas (3x), Xiang, Zeyu (3x), Browne, Walter Shawn (2x), Lputian, Smbat (2x), Kindermann, Stefan (2x), Harutjunyan, Gevorg (2x)
6.b4 — 2.1% (66 parties)
Ambassadeurs : Krasenkow, Michal (6x), Peev, Peicho (2x), Kempinski, Robert (2x), Pavlidis, Anastasios (2x), Mitsis, Georgios (2x), Tompa, Janos (1x), Minev, Nikolay N (1x), Aleksandrov Ivanchev, Aleksandar (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 6.e4 6.e3 6.g3 6.b4
<1800 37 89% 8% 3%
1800-2200 577 81% 10% 6% 2%
2200-2600 2158 77% 12% 8% 2%
2600+ 247 83% 7% 5% 4%
Évolution par décennie (% des parties)
Décennie N parties 6.e4 6.e3 6.g3 6.b4
1920s 3 100%
1930s 2 100%
1940s 1 100%
1960s 8 25% 38% 38%
1970s 9 67% 11% 22%
1980s 123 65% 24% 9%
1990s 213 61% 24% 10% 2%
2000s 342 73% 13% 9% 3%
2010s 1835 79% 11% 6% 2%
2020s 624 86% 6% 6% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
6.e4 79% 86% ▲ +6.6%
6.e3 11% 6% ▼ -4.2%
6.g3 6% 6% -0.3%
6.b4 2% 1% ▼ -1.8%
Joueurs célèbres
Champions du monde dans cette position
Ding, Liren — 8 parties
Carlsen, Magnus — 6 parties
Ju, Wenjun — 2 parties
Gukesh D — 2 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Hou, Yifan — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
6.e4 — 77.8% (2459 parties)
1945 — Nielsen, Hartvig vs Larsen Ojvind — 0-1 — Odense DEN
1963 — Bobotsov, Milko G vs Acevedo Ortega, Rodrigo Andres — 1/2-1/2 — Havana CUB
1966 — Langeweg, Kick vs Cuijpers, Frans Andre — 1-0 — Beverwijk NED
1972 — Bilino vs Gerasimov, N — 1-0 — Liepaia
1973 — Eising, Johannes vs Behling, Robert — 1-0 — Solingen GER
6.e3 — 11.6% (368 parties)
1925 — Gruenfeld, Ernst vs Bogoljubow, Efim — 0-1 — Breslau GER
1925 — Gruenfeld, Ernst vs Bogoljubov, Evgeniy — 0-1 — Marienbad CZE
1925 — Gruenfeld, Ernst vs Prokes, Ladislav — 1/2-1/2 — Debrecen HUN
1966 — Antoshin, Vladimir S vs Acosta Ortega, Luis Edgardo — 1-0 — Sochi RUS
1966 — Minev, Nikolay N vs Acevedo Ortega, Rodrigo Andres — 1-0 — La Habana olm fin-A
6.g3 — 7.0% (220 parties)
1931 — Dake, Arthur William vs Horowitz, Albert Israel — 0-1 — New York, NY USA
1932 — Hoenlinger, Baldur vs Podhorzer, David — 1-0 — Vienna AUT
1965 — Fernandez Murga, Roberto vs Fedorovsky, Rafael — 0-1 — Buenos Aires ARG
1967 — Zaitsev, Aleksandr vs Polugaevsky, Lev — 0-1 — Kharkov ch-URS
1969 — Pollak, Georg vs Giorgadze, Tamaz — 1/2-1/2 — Dresden GER
6.b4 — 2.1% (66 parties)
1970 — Peev, Peicho vs Tompa, Janos — 1/2-1/2 — Sofia BUL
1971 — Peev, Peicho vs Minev, Nikolay N — 1-0 — Varna BUL
1991 — Gevorgjan, K. vs Lichev, Lachezar — 1/2-1/2 — Teteven op
1996 — Krasenkow, Michal vs Aleksandrov Ivanchev, Aleksandar — 1/2-1/2 — Moskou rapid
1996 — Krasenkow, Michal vs Aleksandrov, Aleksej — 1/2-1/2 — Moscow RUS

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