B15t — Caro-Kann: 4.Nxe4 Nf6 5.Nxf6+

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte g4, la paire de fous et la colonne semi-ouverte e.

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 (le cavalier g1, les fous c1 et f1 et les tours a1 et h1).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; Nf3 (Développer Ng1) ; Be3 (Développer Bc1) ; Bd3 (Développer Bf1) ; Tour sur colonne e.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte d5, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Les fous enfermés en c1 et f1, le roi resté au centre et une pièce en prise (le cavalier en f6).

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, les fous c8 et f8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nbd7 (Développer Nb8) ; ...Bf5 (Développer Bc8) ; ...Bd6 (Développer Bf8) ; ...c5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→c6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g4 (2v1)	● d5 (2v1)
Cases faibles	—	—
Centre	● e4 (1v0), ● e5 (1v0)	● d5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● e	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (g1, c1, f1, a1, h1)	5 (b8, 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	● c2-c3, ● d4-d5, ● f2-f3	● …c6-c5, ● …e7-e6, ● …e7-e5

Partie
1911 Karlsbad – Round 1 – Teichmann, Richard – 1-0 – Tartakower, Savielly – G146 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Re8 9. h3 Nd7 10. Bd3 Nf8
1911 Karlsbad – Round 14 – Suechting, Hugo – 1/2-1/2 – Nimzowitsch, Aron – G267 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Bg4 9. Re1 Qa5 10. Be2 Re8
1912 BCF Ch 9th – Round 7 – Yates, Fred Dewhirst – 1/2-1/2 – Griffith, Richard Clewin – G9 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Re8 9. b3 Nd7 10. Bb2 Nf8
1927 Kecskemet II – Round 8 – Steiner, Laszlo – 1-0 – Przepiorka, Dawid – G23 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Re8 9. Nh4 Bf8 10. b3 g6
1927 Trebitsch mem11 – Round 7 – Steiner, Lajos – 1-0 – Duenmann, Arthur – G12 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Be6 7. Bd3 Bd6 8. O-O O-O 9. Nh4 g6 10. Bh6 Re8
1928 The Hague – Round 1 – Joyeux Steiner, Gael – 0-1 – Rosselli del Turco, Stefano – G2 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Nd7 9. c4 f5 10. Qc2 f4
1929 Karlsbad – Round 1 – Marshall, Frank – 1/2-1/2 – Tartakower, Savielly – G114 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Bg4 9. h3 Bh5 10. Re1 Nd7
1931 Prague ol – Round 11 – Vistaneckis, Isakas – 1/2-1/2 – De Winter Gallegos, Willy – G41 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Bd6 7. Bd3 O-O 8. Ne2 Qc7 9. Ng3 Re8 10. Qf3 Nd7
1931 Prague ol Prague CZE – Round 18 – Gromer, Aristide – 1/2-1/2 – Rejfir, Josef – G66 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. Be3 Qc7 9. c3 Re8 10. Qc2 h6
1933 Leningrad ch-URS – Round 1 – Rauzer, Vsevolod – 1-0 – Rabinovich, Ilya Mar – G41 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. g3 Bd6 7. Bg2 O-O 8. Ne2 Re8 9. O-O Bf5 10. c4 Na6
1934 GER Ch 2nd – Round 17 – Borgardts, Gerhard – 1/2-1/2 – Carls, Carl – G34 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bf5 7. Bd3 Bxd3 8. Qxd3 Bd6 9. O-O O-O 10. Qf5 Qd7
1938 Krakow Krakow POL – Round ? – Plater, Kazimierz – 1-0 – Gadalinski, Jan – G14 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be3 O-O 8. Bd3 Qc7 9. Qd2 Bg4 10. O-O-O Nd7
1939 Bournemouth – Round ? – Mieses, Jacques – 0-1 – Flohr, Salo – G26 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be3 O-O 8. Qd2 Be6 9. Be2 Nd7 10. c4 Qc7
1939 Kemeri / Riga – Round ? – Dreibergs, Leonid – 1/2-1/2 – Koblencs, Alexander – G87 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Be6 9. b3 Re8 10. Bb2 Nd7
1939 New York ch-ACF – Round 1 – Adams, Weaver – 0-1 – Pinkus, Albert – G10 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. g3 Bd6 7. Bg2 O-O 8. Ne2 Re8 9. O-O Na6 10. c4 Bf5
1940 Ventnor City – Round 7 – Ulvestad, Olaf – 1/2-1/2 – Mccormick Sanchez, Elliot Gael – G26 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bc4 O-O 8. O-O Be6 9. Bxe6 fxe6 10. Qd3 Re8
1941 New York – Round 1 – Adams, Weaver – 0-1 – Shainswit, George – G17 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. g3 Bd6 7. Bg2 O-O 8. Ne2 Bg4 9. f3 Bf5 10. O-O Re8
1949 GBR Ch 36th – Round 11.1 – Tylor, Theodore Henry – 1/2-1/2 – Golombek, Harry – G45 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. g3 Bd6 7. Bg2 O-O 8. Ne2 Bf5 9. O-O Re8 10. Re1 Na6
1955 EU-Cup Gr3 – Round 6.2 – Wantz, Fernand – 0-1 – Pfeiffer, Gerhard – G17 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be3 O-O 8. Qd2 Qc7 9. Be2 Nd7 10. O-O-O f5
1955 Hungary Ch – Round 1 – Bely, Matthieu – 1/2-1/2 – Rethy, Pal – G47 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be2 Bd6 7. Nf3 O-O 8. O-O Re8 9. Re1 Bg4 10. Nh4 Bxe2
1957 Clare Benedict Cup 04th – Round 3 – Johner, Hans – 1/2-1/2 – Pfeiffer, Gerhard – G21 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Bd6 7. Bd3 O-O 8. Ne2 Re8 9. O-O Bg4 10. h3 Bh5
1957 FRG Ch U20 – Round 10 – Pfleger, Helmut, Dr. – 1/2-1/2 – Zettl, Thomas – G11 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be3 O-O 8. Be2 Re8 9. O-O Nd7 10. Qd2 Qc7
1957 URS Ch, semi final – Round 1 – Aronin, Lev – 1/2-1/2 – Khalilbeili, Sultan – G68 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Bg4 9. c4 Re8 10. h3 Be6
1960 Ch - Closed – Round 4 – Blackstone, John – 0-1 – Weinberger, Tibor – G4 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. Be3 Bg4 9. Qd2 Re8 10. O-O-O b5
1961 Nykobing – Round 1 – Soby, Frode – 1-0 – Korning, Peter – G20 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Bf5 7. Ne2 Bd6 8. Ng3 Be6 9. Bd3 Nd7 10. O-O Qc7
1962 BRA Ch – Round 6 – Mangini, Jose Henrique de Mello – 1/2-1/2 – Kruel, Fernando – G14 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Bg4 9. h3 Bh5 10. Nh4 Bg6
1965 Corr – Round ? – Nielsen, Verner – 1/2-1/2 – Korning, Peter – G14 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Bg4 9. h3 Bh5 10. Be3 Nd7
1966 WchTJ U26 fin-A – Round 9 – Hankipohja, Antti – 1/2-1/2 – Vadasz, Laszlo – G54 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Nd7 9. Re1 Re8 10. Be3 Nf8
1967 FRA Ch Dieppe FRA – Round 1 – Mazzoni, Guy – 0-1 – Thiellement, Andre – G3 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Ne2 Bd6 7. Ng3 O-O 8. Be2 f5 9. f4 Re8 10. O-O Qf6
1968 Lasker Memorial – Round ? – Radovici, Corvin – 1/2-1/2 – Zaitsev, Alexander – G38 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Re8 9. h3 Be6 10. c4 Nd7
42. Olympiad 2016 – Round 7.27 – Bologan, Victor – 1/2-1/2 – Salem, A.R. Saleh – G505 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Qc7 9. h3 Be6 10. c4 Qd7
43. Olympiad 2018 – Round 1.31 – Teerapabpaisit, Wisuwat – 0-1 – Grandelius, Nils – G43 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bf4 Qb6 7. Bc4 Qb4+ 8. Qd2 Qxc4 9. Ne2 Be7 10. O-O O-O
Buenos Aires olm 1978 – Round 1 – De La Torre Rodriguez, Elizabeth – 0-1 – Korchnoi, Viktor – G23 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 Na6 8. O-O Nc7 9. c4 O-O 10. Be3 Re8
FIDE World Blitz Championship 2025 – Round 12 – Moussard Jules – 1/2-1/2 – Vladislav Artemiev – G232 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 O-O 8. a4 Rb8 9. axb5 axb5 10. Nc3 d6
FIDE World Blitz Championship 2025 – Round 3 – Ahmad Al Khatib – 0-1 – Iturrizaga Bonelli Eduardo – G58 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 a5 7. Bd3 Na6 8. a3 g6 9. h4 h5 10. Qe2 Be7
Lindores Abbey Tal Memorial 2021 – Round 15.37 – Demchenko, Aleksandr – 0-1 – Gunina, Valentina – G659 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Bg4 9. h3 Bh5 10. Bf5 Re8
SportAccord Blitz 2014 – Round 19.6 – Radjabov, Teimour – 1/2-1/2 – Harikrishna, Pentala – G149 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Bg4 9. Re1 Qc7 10. h3 Bh5
SuperUnited Blitz 2022 – Round 4.2 – So, Wesley – 0-1 – Van Foreest, Jorden – G17 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Na6 7. c3 Nc7 8. Bd3 Bd6 9. Ne2 f5 10. Qc2 Qf6
SuperUnited Blitz 2023 – Round 13.2 – Anand, Viswanathan – 0-1 – Gukesh D – G62 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Re8 9. Re1 Be6 10. c3 Nd7
World Blitz 2022 – Round 10.59 – Vokhidov, Shamsiddin – 0-1 – Batsuren, Dambasuren – G549 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Bd6 7. Bd3 O-O 8. Ne2 Re8 9. O-O Nd7 10. Ng3 Nf8
World Blitz 2022 – Round 13.50 – Ansat, Aldiyar – 0-1 – Tabatabaei Bafghi, Mohammad – G705 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Na6 7. c3 Nc7 8. Bd3 Bd6 9. Ne2 O-O 10. O-O Re8
World Blitz 2023 – Round 10.3 – Nepomniachtchi, Ian – 1-0 – Rapport, Richard – G586 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Bd6 7. Bd3 O-O 8. Ne2 Bf5 9. Bxf5 Qa5+ 10. c3 Qxf5
World Blitz 2023 – Round 12.1 – Nepomniachtchi, Ian – 1/2-1/2 – Carlsen, Magnus – G670 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Na6 7. a3 Bd6 8. Bd3 O-O 9. Ne2 Re8 10. O-O Bg4
World Blitz 2023 – Round 2.19 – Nepomniachtchi, Ian – 1-0 – Xue, Haowen(SZ) – G89 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Qb6 7. Qe2 Bd6 8. d5 Qc7 9. Bc5+ Kf8 10. Bxd6+ Qxd6
World Blitz 2023 – Round 7.22 – Guseinov, Gadir – 1/2-1/2 – Anton Guijarro, David – G399 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bd3 Qxd4 7. Nf3 Qd5 8. O-O Be6 9. Re1 Nd7 10. c4 Qd6
World Rapid 2021 – Round 10.18 – Timofeev, Artyom – 0-1 – Dubov, Daniil – G572 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Be2 O-O 8. O-O Re8 9. h3 Nd7 10. Re1 Nf8

B15t —

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+

Eval: [+0.31]

Les coups candidats

5…exf6 — 53.6% (11506 parties) →

Ambassadeurs : Lechtynsky, Jiri (63x), Moehring, Guenther (30x), Miladinovic, Igor (29x), Salimova, Nurgyul (25x), Radlovacki, Jovan (25x), La Rota, Fabio (24x), Balabayeva, Xeniya (22x), Amar, Elham (22x)

5…gxf6 — 46.4% (9968 parties) →

Ambassadeurs : Metz, Hartmut (39x), Ciric, Dragoljub M (33x), Schmitzer, Klaus (30x), Bronstein, David I (25x), Pommerel Brouwer, H (24x), Grishchenko, Sergey (24x), Roos, Daniel (23x), Felber, Joseph J. (23x)

5…... — 0.0% (2 parties)

Ambassadeurs : Osbun, Erik (2x), Freeman, John G (1x), McKiernan, Terry (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…exf6	5…gxf6	5…...
<1800	703	60%	40%	—
1800-2200	7756	55%	45%	—
2200-2600	8255	61%	39%	—
2600+	213	78%	22%	—

Évolution par décennie (% des parties)

Décennie	N parties	5…exf6	5…gxf6	5…...
1860s	1	100%	—	—
1890s	1	100%	—	—
1900s	5	80%	20%	—
1910s	41	46%	54%	—
1920s	55	45%	55%	—
1930s	65	77%	23%	—
1940s	75	51%	49%	—
1950s	185	31%	69%	—
1960s	389	36%	64%	0%
1970s	474	43%	57%	—
1980s	1788	25%	75%	0%
1990s	3492	29%	71%	—
2000s	4533	36%	64%	—
2010s	5440	58%	42%	—
2020s	4932	95%	5%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…exf6	58%	95%	▲ +37.0%
5…gxf6	42%	5%	▼ -37.0%
5…...	0%	0%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 10 parties
Tal, Mikhail — 10 parties
Gukesh D — 10 parties
Alekhine, Alexander — 6 parties
Karpov, Anatoly — 5 parties
Anand, Viswanathan — 4 parties
Lasker, Emanuel — 3 parties
Kasparov, Garry — 3 parties
Carlsen, Magnus — 3 parties
Karpov, Aleksandr — 2 parties
Botvinnik, Mikhail — 2 parties
Hou, Yifan — 2 parties
Ding, Liren — 2 parties
Euwe, Max — 1 partie

Parties historiques

5…exf6 — 53.6% (11506 parties)

1862 — Blackburne, Joseph vs Gundry, W — 1-0 — ?
1898 — Pillsbury, Harry vs Caro, Horatio — 1-0 — Vienna AUT
1908 — Leonhardt, Paul vs Důras, Oldřich — 0-1 — Vienna AUT
1909 — Tartakower, Savielly vs Fahrni, Hans — 1-0 — Munich GER
1909 — Forgacs, Leo vs Důras, Oldřich — 0-1 — St Petersburg RUS

5…gxf6 — 46.4% (9968 parties)

1907 — Leonhardt, Paul vs Nimzowitsch, Aron — 1/2-1/2 — Carlsbad CZE
1910 — Alekhine, AVon Bardeleben, C vs Nimzowitsch, ABier, M — 1/2-1/2 — Hamburg GER
1910 — Köhnlein, Friedrich vs Nimzowitsch, Aron — 1/2-1/2 — Hamburg GER
1910 — Yates, Frederic D vs Nimzowitsch, Aron — 0-1 — Hamburg GER
1910 — Leonhardt, Paul vs Nimzowitsch, Aron — 0-1 — Hamburg GER

5…... — 0.0% (2 parties)

1960 — Osbun, Erik vs Freeman, John G — 1-0 — Palmdale
1986 — Osbun, Erik vs McKiernan, Terry — 1-0 — Los Angeles, CA USA