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

E53d — 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
bR
bN
bB
bQ
bR
bK
bP
bP
bP
bPPion sous pression
bP
bP
bN
Case forte (2v0)
bP
bP
Case forte (2v0)
bB
wP
wPPion central
wN
wBFou actif — mobilité 7
wPPion central
wN
wP
wP
wP
wP
wP
wR
wB
wQ
wR
wK
abcdefgh
Plans. cxd5 (Capture en d5, Occuper le centre — 68 % des parties) ; a3 (Préparer expansion aile dame — 22 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wK
wR
wQ
wB
wR
wP
wP
wP
wP
wP
wN
wP
wB
wN
Avant-poste C (accessible)
wP
wP
bB
bP
bP
bN
bP
bP
bPPion sous pression
bP
bP
bP
bK
bR
bQ
bB
bN
bR
hgfedcba
Plans. ...Bxc3 (Fou actif (mobilité 6) — 20 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 6 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
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 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 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
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
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 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 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
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 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 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 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
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

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