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
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
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 |












