Structure de pions
| ♔ Blancs | ♚ Noirs | |
| Pions doublés | — | — |
| Pions isolés | — | — |
| Arriérés | — | — |
| Chaînes | ● d2→e3, f2→e3, f2→g3, h2→g3 | ● d7→e6, f7→e6, f7→g6, h7→g6 |
| Passés | — | — |
| Majorité | — | — |
Cases
| ♔ Blancs | ♚ Noirs | |
| Cases fortes | ● f4 (2v0), ● b5 (2v0) | ● b4 (2v0), ● e5 (2v1), ● f5 (2v0) |
| Cases faibles | — | — |
| Centre | ● d5 (2v1), ● e4 (1v0) | ● d4 (3v2), ● e5 (2v1) |
Colonnes et diagonales
| ♔ Blancs | ♚ Noirs |
Pièces
| ♔ Blancs | ♚ Noirs | |
| Bc1 | ● Bc1 Non développé (mob. 0) | |
| Bg2 | ● Bg2 Ok (mob. 2) | |
| Bg7 | ● Bg7 Actif (mob. 6) | |
| Bc8 | ● Bc8 Non développé (mob. 0) | |
| Paire de fous | ● Oui | ● Oui |
| Non développées | 3 (● c1, ● a1, ● h1) | 4 (● g8, ● c8, ● 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 | mobile | |
| Ruptures | ● d2-d4 | ● …d7-d5 |
A37k — English: Symmetrical, 5.Nf3 e6 6.e3
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.e3 * ● Trait aux Noirs
Ouverture — Centre mobile
♔ Point de vue Blancs
8
7
6
5
4
3
2
1
abcdefgh
Plans. d4 (Occuper le centre — 54 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 40 % des parties).
♚ Point de vue Noirs
1
2
3
4
5
6
7
8
hgfedcba
Plans. ...Nge7 (Développer g8 — 94 % des parties) ; ...d5 (Occuper le centre — 4 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
| Partie |
|---|
| 1933 BCF Ch 26th – Round 10 – Mortlock, Alfred – 0-1 – Sultan Khan, Mir – G26 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e6 6. e3 e5 7. d3 Nge7 8. O-O O-O 9. a3 d6 10. Qc2 f5 |
| 1950 SUI Ch – Round 1 – Bachmann, Philipp – 1/2-1/2 – Blau, Max – G1 1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nc3 e6 6. e3 Nge7 7. d4 cxd4 8. Nxd4 Nxd4 9. exd4 d5 10. cxd5 exd5 |
| 1968 Bristol ch-BCF – Round 9 – Clarke, Paul R H – 1/2-1/2 – Basman, Michael J – G100 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e6 6. e3 Nge7 7. d4 cxd4 8. Nxd4 O-O 9. O-O Qa5 10. Nce2 Rd8 |
| 1968 URS Team Ch – Round 1 – Osnos, Viatcheslav – 1/2-1/2 – Suetin, Alexey S – G9 1. c4 g6 2. Nc3 c5 3. Nf3 Bg7 4. g3 Nc6 5. Bg2 e6 6. e3 Nge7 7. d4 cxd4 8. Nxd4 Nxd4 9. exd4 d5 10. cxd5 Nxd5 |
| Moscow 1981 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Gheorghiu, Florin – G32 1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. c4 Nc6 5. Nc3 e6 6. e3 Nge7 7. d4 cxd4 8. Nxd4 d5 9. cxd5 Nxd4 10. exd4 Nxd5 |
1967 — Etruk, Rein T vs Mukhin, Evgeny B — 0-1 — Moscow RUS
1967 — Zhidkov, Valery S vs Babushkin, Eduard — 1/2-1/2 — ?
1968 — Osnos, Viatcheslav vs Suetin, Alexey S — 1/2-1/2 — Riga LAT
1968 — Clarke, Peter vs Basman, Michael John — 1/2-1/2 — Bristol ch-BCF
1985 — Baran, Peter vs Thal, Olaf — 1/2-1/2 — Ziar nad Hronom
1987 — Arkell, Keith C vs Martin, Andrew D — 1/2-1/2 — London ENG
1988 — Roos, Thomas vs Haskamp, Stephan — 1/2-1/2 — NDEM Konigslutter
1990 — Larouche, Daniel vs Bakbouchev, A. — 0-1 — Val Maubuee open
1994 — Mackensy, Thomas vs Rychel, Dieter — 1-0 — Oberliga SuedW 9394
1995 — Van Bommel, P. vs Eckert, Marius — 1/2-1/2 — Mainz
2003 — Pastor Domingo, Manuel vs Esquerdo Fortea, Alvaro — 1-0 — Valencia
2006 — Stegmaier, Erika vs Weiss, Monika — 1-0 — ?
2017 — Hadasch, Frank vs Bunk, Karsten — 0-1 — Zirndorf GER