C81e — Spanish: Open, Keres, 10.Rd1

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7 10.Rd1 * ● 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 d4, la paire de fous et la colonne semi-ouverte d.

Côté adverse. Le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nbd2 (Développer Nb1) ; Be3 (Développer Bc1) ; h3 (Empêcher ...Bg4) ; Bc2 (Anticiper ...Na5) ; Tour sur colonne d.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur les cases fortes b4 et c5, des fous actifs en e6 et e7, la paire de fous et la colonne semi-ouverte e.

Côté adverse. Le fou enfermé en c1.

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

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Bg4 (Clouer Nf3) ; ...d4 (Rupture) ; ...f6 (Rupture) ; ...f5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● a6→b5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1)	● b4 (2v0), ● c5 (2v0)
Cases faibles	● c4	● d5, ● g5
Centre	● d4 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bb3	● Bb3 Ok (mob. 3)
Be6		● Be6 Actif (mob. 5)
Be7		● Be7 Actif (mob. 8)
Paire de fous	● Oui	● Oui
Non développées	3 (b1, c1, a1)	2 (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	semi-ouvert
Ruptures	● c2-c3	● …d5-d4, ● …f7-f6, ● …f7-f5

Partie
1949 Moskou ch-URS – Round 1 – Aronin, Lev – 1/2-1/2 – Keres, Paul – G124 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1949 Toronto Ch – Round 10 – Anderson, Frank Ross – 0-1 – Crompton, Charles – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1950 Dubrovnik olm – Round 14 – Castillo Bermudez, Manuel – 0-1 – Unzicker, Wolfgang – G216 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1950 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 1/2-1/2 – Tolush, Alexander – G88 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1950 Southsea – Round 9 – Penrose, Justin – 1/2-1/2 – Alexander, F. – G40 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Na5
1950 URS-ch18 – Round ? – Boleslavsky, Isaac – 1/2-1/2 – Tolush, Alexander V – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1951 Mar del Plata zt – Round 23 – Vasconcellos, Fernando O – 1/2-1/2 – Alvarez Martin, Pedro – G234 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1951 Marianske Lazne zt – Round 1 – Tsvetkov, Aleksandar – 0-1 – Szabo, Ladislav – G67 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1951 URS Ch sf Sverdlovsk – Round 12 – Boleslavsky, Isaac – 1/2-1/2 – Ravinsky, Grigory – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1951 YUG Ch 6th – Round 2 – Janosevic, Dragoljub – 1-0 – Karaklajic, Nikola – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1952 Belgrade – Round 12 – Milic, Borislav – 1-0 – Krivec, Sandi – G26 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1952 JUG Ch – Round 5 – Djurasevic, Bozidar – 1/2-1/2 – Krivec, Sandi – G32 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1953 Hoogovens – Round 1 – Donner, Jan-Hein – 1-0 – Cortlever, Nico – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1953 POL-ch11 – Round 15 – Witkowski, Stefan – 1-0 – Grabczewski, Romuald – G96 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1953 URS-ch21 sf – Round ? – Suetin, Alexey S – 1-0 – Ravinsky, Grigory – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1954 URS Ch sf Leningrad RUS – Round 17 – Zurakhov, Vladlen Y – 1/2-1/2 – Kondratiev, Pavel E – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1954 URS Ch sf Leningrad RUS – Round 5 – Zurakhov, Vladlen Y – 1-0 – Ragozin, Viacheslav – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1955 URS Team Ch sf – Round ? – Shagalovich, Abo – 0-1 – Ravinsky, Grigory – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1956 Corr – Round ? – Boutteville, Cesar – 1-0 – Hakanen Vaino – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1956 Dublin – Round 4 – Dunphy, William – 1/2-1/2 – Donner, Jan-Hein – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1956 Poltava – Round ? – Kotkov, Aleksandr – 1/2-1/2 – Korchnoi, Viktor – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1956 Yugoslavia – Round 8 – Lukic, Arsenije – 1/2-1/2 – Matulovic, M. – G9 1. e4 Nc6 2. Bb5 e5 3. Nf3 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1957 Sombor – Round 5 – Ivkov, Borislav – 1-0 – Tot, Bora – G63 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1957 URS-JUG – Round 4 – Boleslavsky, Isaac – 1-0 – Karaklajic, Nikola – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1958 GBR Ch 45th – Round 3.5 – Barden, Leonard – 1-0 – Mardle, Denis – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1958 Toronto Ch – Round 5 – Anderson, Frank Ross – 1-0 – Herbst, Henry – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1958 URS-ch25 – Round ? – Suetin, Alexey S – 1/2-1/2 – Boleslavsky, Isaac – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1958 URS-ch25 – Round ? – Suetin, Alexey S – 1/2-1/2 – Geller, Efim P – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1960 UKR Ch – Round 10 – Novopashin, Arkady – 1-0 – Stein, Leonid – G62 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1963 CSR Ch – Round 9 – Kavalek, Lubomir – 1-0 – Simek, Jakub – G81 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Na5
1963 Enschede zt – Round 10 – Aitken, James – 1/2-1/2 – Philippe, Georges – G51 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1963 Halle zt – Round 1 – Westerinen, Heikki M.J. – 1/2-1/2 – Trifunovic, Maja A – G101 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Na5
1963 Hoogovens – Round 13 – Parma, Bruno – 0-1 – Pilnik, Herman – G106 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1963 JUG-URS – Round 1 – Ivkov, Borislav – 1/2-1/2 – Suetin, Alexey S – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1963 LAT Ch – Round ? – Gipslis, Aivars – 1-0 – Zhuravlev, Valery Ivanovich – G57 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1963 URS-ch31 – Round ? – Gipslis, Aivars – 1-0 – Klovans, Janis – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1964 Tel Aviv olm fin-A – Round 10 – Jansa, Vlastimil – 1/2-1/2 – Milev, Zdravko – G223 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1964 Tel Aviv olm fin-A – Round 4 – Matulovic, Milan – 0-1 – Milev, Zdravko – G89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1965 Hoogovens – Round 11 – Langeweg, Kick – 1/2-1/2 – Van den Berg, Cees – G85 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1965 Kiev – Round 1 – Sakharov, Yuri G. – 1-0 – Shianovsky, Vladislav I – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1965 Rio de Janeiro – Round ? – Stein, Leonid – 1/2-1/2 – Lemos, Jorge Joao – G25 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1967 Harrachov – Round 1 – Jansa, Vlastimil – 0-1 – Krantz, Kjell – G95 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Na5
1968 Sarajevo – Round 2 – Ivkov, Borislav – 1/2-1/2 – Matulovic, Milan – G24 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1968 Skopje/Ohrid – Round 16 – Matulovic, Milan – 1/2-1/2 – Savon, Vladimir – G135 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1969 Hoogovens-B – Round 2 – Kurajica, Bojan – 1-0 – Cortlever, Nico – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1969 Schwerin – Round 11 – Dietze, Wolfgang, Dr. – 0-1 – Liebert, Heinz – G85 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 a6 6. Ba4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1970 IBM – Round 1 – Tatai, Stefano – 1-0 – Cortlever, Nico – G142 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Nc5
1975 URS Team Ch – Round 1 – Gojhman, Alexander – 1/2-1/2 – Sher, Miron – G415 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Na5
7. Mikhail Tal Memorial 2012 – Round 1 – Morozevich, Alexander – 1-0 – Caruana, Fabiano – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 Na5
World Rapid 2019 – Round 9.55 – Vokhidov, Shamsiddin – 0-1 – Khanin, Semen – G600 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 Be7 7. Qe2 b5 8. Bb3 d5 9. dxe5 Be6 10. Rd1 Nc5

C81e — Open Keres

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7 10.Rd1

Eval: [+0.07]

Les coups candidats

10…O-O — 72.5% (1213 parties) →

Ambassadeurs : Buj, Pablo (11x), ? (11x), Jansa, Vlastimil (10x), Timman, Jan H (10x), Matulovic, Milan (9x), Peli, Giora Dr (9x), Mikhalevski, Victor (8x), Stieg, Hans-Juergen (7x)

10…Nc5 — 19.2% (322 parties)

Ambassadeurs : Boleslavsky, Isaac (8x), Matulovic, Milan (8x), Donner, Jan-Hein (6x), Ivkov, Borislav (5x), Suetin, Alexey S (5x), Cortlever, Nico (4x), Ostojic, Predrag (4x), Boeven, Manfred (4x)

10…Na5 — 7.1% (119 parties)

Ambassadeurs : Cleghorn, Peter (3x), Geirnaert, Steven (3x), Yanofsky, Daniel Abraham (2x), Smith, Bryan (2x), Jansa, Vlastimil (2x), Aakanksha Hagawane (2x), Pruner, Earl (1x), Bergman, Chris (1x)

10…Qd7 — 0.8% (14 parties)

Ambassadeurs : Krylov, Sergey (2x), Palacios Perez, Manuel (2x), Vogt, Lothar (1x), Garcia Martinez, Silvino (1x), Hecht, Hans-Joachim (1x), Akvist, Hakan (1x), Wittmann, Rainer (1x), Bartel, Mario (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10…O-O	10…Nc5	10…Na5	10…Qd7
<1800	19	95%	—	5%	—
1800-2200	287	70%	16%	13%	1%
2200-2600	573	81%	9%	8%	2%
2600+	58	83%	12%	5%	—

Évolution par décennie (% des parties)

Décennie	N parties	10…O-O	10…Nc5	10…Na5	10…Qd7
1930s	1	—	—	100%	—
1940s	9	44%	33%	22%	—
1950s	72	18%	75%	7%	—
1960s	139	56%	42%	2%	—
1970s	268	73%	21%	5%	1%
1980s	273	76%	22%	2%	0%
1990s	278	79%	15%	4%	1%
2000s	196	67%	13%	17%	2%
2010s	257	79%	7%	12%	1%
2020s	180	89%	4%	7%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10…O-O	79%	89%	▲ +9.5%
10…Nc5	7%	4%	▼ -3.5%
10…Na5	12%	7%	▼ -5.2%
10…Qd7	1%	0%	▼ -0.8%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 5 parties
Euwe, Max — 4 parties
Carlsen, Magnus — 3 parties
Karpov, Anatoly — 2 parties
Kasparov, Garry — 1 partie
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie

Parties historiques

10…O-O — 72.5% (1213 parties)

1948 — Keres, Paul Petrovich vs Euwe, Max — 1-0 — NLD/URS
1948 — Nash, Edmund vs Kashdan, Isaac — 0-1 — US op Baltimore, MD USA
1949 — Aronin, Lev vs Ragozin, Viacheslav — 1/2-1/2 — Moskou ch-URS
1949 — Kholmov, Ratmir D vs Grechkin, Dmitry M — 1-0 — Tbilisi GEO
1950 — Van Scheltinga, Theo vs Cuadrado Pastor, Antonio — 1/2-1/2 — ICCF

10…Nc5 — 19.2% (322 parties)

1949 — Aronin, Lev vs Keres, Paul — 1/2-1/2 — Moskou ch-URS
1949 — Aronin, Lev vs Keres Paul Petrovich — 1/2-1/2 — Moscow RUS
1949 — Anderson, Frank Ross vs Crompton, Charles — 0-1 — Toronto CAN
1950 — Neatby, Leslie Hamilton vs Anderson, Frank Ross — 0-1 — Toronto CAN
1950 — Mross, Paul vs Euwe, Max — 0-1 — Berlin GER

10…Na5 — 7.1% (119 parties)

1937 — Bauer, Randy vs Chalupetzky — 1/2-1/2 — corresp.
1949 — Pruner, Earl vs Bergman, Chris — 1-0 — San Francisco, CA USA
1949 — Tempelmeier, Oskar vs ? — 1-0 — Buende
1950 — Penrose, Justin vs Alexander, F. — 1/2-1/2 — Southsea
1952 — Yanofsky, Daniel Abraham vs Penrose, Oliver — 1/2-1/2 — West London CC

10…Qd7 — 0.8% (14 parties)

1972 — Vogt, Lothar vs Garcia Martinez, Silvino — 1-0 — Varna BUL
1973 — Hecht, Hans-Joachim vs Akvist, Hakan — 0-1 — Eksjo SWE
1979 — Acosta, Alejandro vs Gutierrez, Ramon — 0-1 — Manizales
1989 — Wittmann, Rainer vs Bartel, Mario — 1-0 — GER
1991 — Winterstein, Wolfgang vs Nielsen, Thomas Bach — 1/2-1/2 — Copenhagen DEN

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