E53d — Nimzo-Indian: Main Line, Keres Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O b6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte b5….

Atouts. Les Blancs s'appuient sur les cases fortes b5 et e5, un fou actif en d3 et la paire de fous.

Côté adverse. Le fou enfermé en c8.

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

Plans. Bd2 (Développer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte e4.

Atouts. Les Noirs s'appuient sur un avant-poste en e4 et la paire de fous.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Bd7 (PRIORITÉ: libérer le Bc8 (...Bd7, ...Bg4, ...Bf5)) ; ...Nbd7 (Développer Nb8) ; ...e5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→e3, e3→d4	● b6→c5, e6→d5, a7→b6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● e5 (2v0)	—
Cases faibles	● e4	—
Centre	● d4 (2v1), ● e5 (2v0)	● d5 (3v2)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 1)
Bd3	● Bd3 Actif (mob. 7)
Bb4		● Bb4 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 3)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● e3-e4	● …e6-e5

Partie
1938 Hastings3839 – Round 9 – Landau, Salo – 0-1 – Pirc, Vasja – G40 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Qc2 Qe7
1951 Moskou ch-URS – Round 1 – Bronstein, David I – 1-0 – Novotelnov, Nikolai – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Ne2 Bg4
1951 URS Ch sf – Round 16 – Boleslavsky, Isaac – 1-0 – Ilivitsky, Georgy A – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. dxc5 Bxc5 10. b3 Bb7
1952 Budapest – Round 2 – Petrosian, Tigran A. – 1-0 – Keres, Paul – G23 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O b6 8. dxc5 bxc5 9. Ne2 Nbd7 10. b3 e5
1953 Candidats Tournament – Round 16 – Geller, Efim P – 1/2-1/2 – Szabo, Laszlo – G101 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6 7. O-O c5 8. Qe2 Nbd7 9. cxd5 exd5 10. a3 Ba5
1954 Lodz ch POL – Round 6 – Witkowski, Stefan – 0-1 – Sliwa, Bogdan – G3 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O b6 8. cxd5 exd5 9. a3 Bxc3 10. bxc3 c4
1954 URS Team Ch – Round 2 – Lipnitsky, Isaac – 1-0 – Sidorov, Anatoly – G24 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O b6 8. cxd5 cxd4 9. exd4 Nxd5 10. Nxd5 exd5
1955 Buenos Aires CA – Round 15 – Panno, Oscar – 1/2-1/2 – Alvarez Martin, Pedro – G107 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O b6 8. cxd5 exd5 9. Ne5 c4 10. Bb1 Bb7
1955 Poland ch13 – Round 4 – Litmanowicz, Wladyslaw – 0-1 – Gromek, Jozef – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 d5 6. Bd3 O-O 7. O-O b6 8. a3 Bxc3 9. bxc3 Bb7 10. cxd5 Qxd5
1956 Alekhine Memorial – Round 1 – Gligoric, Svetozar – 1/2-1/2 – Keres, Paul Petrovich – G35 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Ne2 Bb7
1956 Candidats Tournament – Round 4 – Szabo, Laszlo – 1/2-1/2 – Keres, Paul Petrovich – G15 1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O b6 8. cxd5 exd5 9. a3 Bxc3 10. bxc3 Ba6
1956 Moscow olm fin-A – Round 11 – Gligorić, Svetozar – 1/2-1/2 – Szabo, Laszlo – G181 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Ne2 Nbd7
1956 Moscow olm fin-A – Round 7 – Padevsky, Nikola – 1/2-1/2 – Szabo, Ladislav – G112 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. a3 Bxc3 10. bxc3 Ba6
1957 POL Ch 15th – Round 6 – Szukszta, Janus – 1/2-1/2 – Gromek, Jozef – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bb7 10. a3 Ba5
1957 Rio de Janeiro zt – Round 1 – Engels, Ludwig – 1/2-1/2 – Sanguineti, Raúl Carlos – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O b6 8. Qe2 cxd4 9. exd4 Ba6 10. cxd5 Bxd3
1958 Argentina – Round 3 – Shocron, Ruben – 1-0 – Luckis, Marcos – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O b6 8. Qc2 dxc4 9. Bxc4 Bb7 10. dxc5 Bxc5
1958 URS Ch sf – Round ? – Geller, Efim P – 1/2-1/2 – Shaposhnikov, Yury – G33 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. Ne5 c4 10. Bc2 Bb7
1959 Candidats Tournament – Round 13 – Gligorić, Svetozar – 1/2-1/2 – Keres, Paul – G49 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Ne2 Nc6
1959 Candidats Tournament – Round 27 – Gligorić, Svetozar – 0-1 – Keres, Paul – G100 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O b6 8. cxd5 exd5 9. Bd2 Bg4 10. a3 Bxc3
1959 New York ch-USA – Round 9 – Byrne, Ray – 1-0 – Weinstein, Raymond – G48 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. e3 O-O 6. Bd3 d5 7. O-O b6 8. cxd5 exd5 9. Ne5 Qc7 10. Nb5 Qe7
1959 York ch-BCF – Round 1 – Beach, TJ. – 1/2-1/2 – Cafferty, Bernard – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bb7 10. Qf3 Nbd7
1960 Budapest – Round 1 – Gligorić, Svetozar – 1-0 – Szabo, Laszlo – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bb7 10. Bd2 Nc6
1960 EU-Cup Gr2 – Round 3.1 – Stenborg, Ake – 0-1 – Schuster, Theodor – G24 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O b6 8. a3 Bxc3 9. bxc3 Qc7 10. cxd5 exd5
1960 Leipzig olm fin-A – Round 8 – Filip, Miroslav – 1/2-1/2 – Keres, Paul Petrovich – G11 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. a3 cxd4 9. Nxd5 exd5 10. axb4 Bg4
1961 Palanga Baltic Ch – Round ? – Lapienis, Donatas – 1/2-1/2 – Klavins, Janis – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Ne2 Nc6
1961 Zuerich – Round 4 – Lombardy, William J – 1/2-1/2 – Keres, Paul – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 O-O 6. Bd3 d5 7. O-O c5 8. Qe2 cxd4 9. exd4 Ba6 10. Bg5 Bxc3
1962 Corr W-04ch – Round ? – Dalko, Nandor – 0-1 – Tolush, Alexander – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Ne2 Nc6
1962 Gera ch GDR – Round 15 – Bertholdt, Dieter – 1/2-1/2 – Pietzsch, Wolfgang – G32 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. a3 Bxc3 9. bxc3 Ba6 10. cxd5 Bxd3
1962 Varna olm – Round 5 – Nilsson, Nils-Erik – 0-1 – Pietzsch, Wolfgang – G219 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. a3 Bxc3 9. bxc3 cxd4 10. cxd4 Ba6
1962 Wch5 sf10 6265 – Round ? – Ormhaug, K . – 1/2-1/2 – Cafferty, Bernard – G5 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. a3 Bxc3 10. bxc3 Ba6
1963 Asztalos Memorial – Round 7 – Szabo, Laszlo – 1/2-1/2 – Lengyel, Laszlo – G18 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 c5 6. Bd3 d5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bxc3 10. bxc3 Ba6
1963 CSR Ch – Round 1 – Kozma, Julius – 0-1 – Filip, Miroslav – G3 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 d5 5. Nf3 O-O 6. Bd3 c5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bb7 10. Bd2 Nc6
1964 Buenos Aires – Round 6 – Byrne, Robert E – 1-0 – Wexler, Bernardo – G55 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 O-O 6. Bd3 c5 7. O-O d5 8. cxd5 exd5 9. Ne5 Bb7 10. Bd2 Nc6
1964 Rubinstein Memorial – Round 5 – Kavalek, Lubomir – 1-0 – Tolush, Alexander V – G19 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 O-O 6. Bd3 d5 7. O-O b6 8. a3 cxd4 9. axb4 dxc3 10. bxc3 dxc4
1965 ARG Ch – Round 17 – Luckis, Marcos – 1/2-1/2 – Sanguineti, Raúl Carlos – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 O-O 6. Nf3 d5 7. O-O c5 8. cxd5 exd5 9. Ne5 Bb7 10. a3 Ba5
1965 Buenos Aires ch-ARG – Round 14 – Emma, Jaime – 1-0 – Aguirre Ramirez, Ricardo – G91 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O b6 8. a3 Bxc3 9. bxc3 Nbd7 10. cxd5 exd5
1965 Hamburg etc – Round 5 – Donner, Jan-Hein – 1/2-1/2 – Petrosian, Tigran V – G54 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bb7 10. Bd2 Nbd7
1965 Hoogovens – Round 1 – Van den Berg, Cees – 0-1 – Ivkov, Borislav – G5 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 b6 7. O-O d5 8. cxd5 exd5 9. dxc5 bxc5 10. h3 Ba6
1965 HUN-ch21 – Round 1 – Portisch, Ferenc – 0-1 – Forintos, Gyozo V – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O b6 8. cxd5 exd5 9. dxc5 bxc5 10. Ne2 Bb7
1965 Hungary – Round 1 – Farago, Ivan – 0-1 – Dely, Peter – G36 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. Na4 cxd4 9. exd4 dxc4 10. Bxc4 Bb7
1965 Zagreb – Round 10 – Antoshin, Vladimir S – 1/2-1/2 – Petrosian, Tigran A. – G102 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O b6 8. Bd2 dxc4 9. Bxc4 Bb7 10. a3 Bxc3
1968 Budapest – Round 1 – Farago, Ivan – 0-1 – Forintos, Gyozo V – G26 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bxc3 10. bxc3 Ba6
1968 Mar del Plata ch-ARG – Round 3 – Ocampo, Raul – 0-1 – Sanguineti, Raúl Carlos – G25 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nf3 O-O 6. Bd3 d5 7. O-O c5 8. a3 Bxc3 9. bxc3 Ba6 10. Ne5 dxc4
Biel Interzonal 1976 – Round 11 – Portisch, Lajos – 0-1 – Sanguineti, R. – G50 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bb7 10. Ne2 c4
Bugojno 1978 – Round 12 – Gligoric, Svetozar – 0-1 – Spassky, Boris V. – G67 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O b6 8. cxd5 exd5 9. Ne5 Bb7 10. Bd2 Nc6
Candidats sf2 1977 – Round 14 – Portisch, Lajos – 0-1 – Spassky, Boris V. – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O b6 8. cxd5 exd5 9. Ne5 Re8 10. Bd2 Ba6
Hoogovens 1978 – Round 1 – Portisch, Lajos – 1-0 – Panno, Oscar – G10 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O b6 8. cxd5 exd5 9. Ne5 Bxc3 10. bxc3 Ba6
Madrid rapid 1988 – Round 5 – Beliavsky, Alexander G – 1/2-1/2 – Hjartarson, Johann – G22 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. a3 Bxc3 9. bxc3 Ba6 10. cxd5 exd5
World Cup 1991 – Round 1 – Salov, Valery – 1-0 – Hjartarson, Johann – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6 8. cxd5 exd5 9. a3 Bxc3 10. bxc3 Ba6

E53d — Main Line Keres Variation

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O b6

Eval: [+0.16]

Les coups candidats

8.cxd5 — 74.3% (573 parties)

Ambassadeurs : Gligoric, Svetozar (10x), Kolanek, Roman (8x), Mroczek, Jacek (7x), Keres, Paul (5x), Owens, Johnny (5x), Hatsek, Werner (5x), Zaas, Joel (5x), Szabo, Laszlo (4x)

8.a3 — 12.2% (94 parties)

Ambassadeurs : Nickoloff, Bryon (3x), Pietzsch, Wolfgang (2x), Sanguineti, Raúl Carlos (2x), Reshevsky, Samuel (2x), Lindh, B. (2x), Zsinka, Laszlo (2x), Garcia Vicente, Nieves (2x), Nathans, PJ. (1x)

8.dxc5 — 5.4% (42 parties)

Ambassadeurs : Kruse, Herbert (3x), Popov, Vladimir Valentinovich (2x), Potrata, Janko (2x), Astrologo, Xavier John David (1x), Ardoino, Roberto (1x), Petrosian, Tigran A. (1x), Keres, Paul (1x), Bocharov, Dmitry (1x)

8.Qe2 — 4.7% (36 parties)

Ambassadeurs : Karl, Hans (2x), Lombardy, William J (1x), Keres, Paul (1x), Cakir Jirair (1x), Tempelhoff Wilmar (1x), Kummer, Gerhard (1x), Herzel, Alois, Dr. (1x), Engels, Ludwig (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.cxd5	8.a3	8.dxc5	8.Qe2
<1800	24	71%	4%	12%	8%
1800-2200	215	81%	7%	5%	6%
2200-2600	345	74%	12%	6%	4%
2600+	16	62%	19%	19%	—

Évolution par décennie (% des parties)

Décennie	N parties	8.cxd5	8.a3	8.dxc5	8.Qe2
1930s	1	100%	—	—	—
1950s	30	80%	7%	3%	7%
1960s	47	49%	36%	2%	6%
1970s	54	76%	17%	—	6%
1980s	39	77%	21%	—	—
1990s	53	66%	26%	—	4%
2000s	59	63%	15%	8%	5%
2010s	393	78%	8%	7%	5%
2020s	95	79%	5%	9%	5%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.cxd5	78%	79%	▲ +0.8%
8.a3	8%	5%	▼ -2.4%
8.dxc5	7%	9%	▲ +2.9%
8.Qe2	5%	5%	▲ +0.7%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 1 partie
Hou, Yifan — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

8.cxd5 — 74.3% (573 parties)

1938 — Landau, Salo vs Pirc, Vasja — 0-1 — Hastings ENG
1951 — Bronstein, David I vs Novotelnov, Nikolai — 1-0 — Moskou ch-URS
1951 — Boleslavsky, Isaac vs Ilivitsky, Georgy A — 1-0 — Sverdlovsk
1954 — Witkowski, Stefan vs Sliwa, Bogdan — 0-1 — Lodz ch POL
1954 — Lipnitsky, Isaac vs Sidorov, Anatoly — 1-0 — Riga LAT

8.a3 — 12.2% (94 parties)

1955 — Litmanowicz, Wladyslaw vs Gromek, Jozef — 0-1 — Wroclaw POL
1956 — Rantanen, Matti vs Larsen, Bent — 1-0 — Hangoe
1960 — Lawrie, N. vs Neumann, Adam — 0-1 — corr England-BRD
1960 — Fogelberg Lindberg, Lydia vs Tiemann, Christoph — 1-0 — EU corr
1960 — Filip, Miroslav vs Keres, Paul Petrovich — 1/2-1/2 — Leipzig olm fin-A

8.dxc5 — 5.4% (42 parties)

1952 — Petrosian, Tigran A. vs Keres, Paul — 1-0 — Budapest HUN
1960 — Astrologo, Xavier John David vs Ardoino, Roberto — 1/2-1/2 — cr.
2005 — Grifoll Miró, Joan vs Alexandre Bisquert, Francisco — 1/2-1/2 — ICCF
2005 — Eris, Cem vs MacGregor, Colin A — 1-0 — ICCF
2007 — Eilmes, Don P vs David Androson V — 1/2-1/2 — ICCF

8.Qe2 — 4.7% (36 parties)

1953 — Geller, Efim P. vs Szabo, Laszlo — 1/2-1/2 — Zurich SUI
1957 — Engels, Ludwig vs Sanguineti, Raúl Carlos — 1/2-1/2 — Rio de Janeiro BRA
1961 — Lombardy, William J vs Keres, Paul — 1/2-1/2 — Zurich SUI
1964 — Kummer, Gerhard vs Herzel, Alois, Dr. — 1/2-1/2 — ?
1969 — Cakir Jirair vs Tempelhoff Wilmar — 0-1 — WT/M/16 ICCF corr

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