Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● d4, ● d7
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● e	● e
Semi-ouvertes	● d	—

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Ba4	● Ba4 Ok (mob. 3)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	4 (● c8, ● f8, ● 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	● …d4-d3

C80g — Spanish: Open, Riga Variation

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 exd4 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Re1 (Tour sur colonne ouverte e — 95 % des parties) ; Qe2 (Pression sur colonne e — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...d5 (Occuper le centre — 82 % des parties) ; ...f5 (Attaque à l'aile roi — 10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1908 Prague – Round 1 – Treybal, Karel – 1-0 – Dobias, Josef – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 d5 8. c4 Bb4 9. cxd5 Bxe1 10. Qxe1 O-O
1908 Vienna – Round 1 – Maroczy, Geza – 0-1 – Berger, Jacob – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 a6 6. Ba4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2+ 10. Kf1 Qh4
1915 New York – Round 8 – Capablanca, Jose – 1-0 – Lasker, Edward – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2+ 10. Kh1 Qh4
1929 Bradley Beach – Round 2 – Kupchik, Abraham – 0-1 – Steiner, Heinrich Jun. – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Qh5 O-O 10. Nxc6 bxc6
1939 Buenos Aires – Round 1 – Rinder, Elfriede – 1-0 – Bloch Nakkerud, Ruth – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 f5 8. Nxd4 Be7 9. Nxf5 O-O 10. Qd5+ Rf7
1949 Gambit CC Ch – Round 11 – Anderson, Frank Ross – 1-0 – Gray, Sydney – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O Nxe4 7. Re1 d5 8. Nxd4 Be7 9. Nxc6 Qd6 10. Nxe7+ Kxe7
1952 Tatranska ch CZE – Round 1 – Fichtl, Jiri – 1-0 – Potucek, Ludovit – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O Nxe4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2+ 10. Kh1 Qh4
1961 Moscow Ch – Round ? – Khasin, Abram – 1/2-1/2 – Zakharov, Alexander V – G102 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2+ 10. Kh1 Qh4
1964 Rubinstein Memorial – Round 10 – Schmidt, Waldemar – 1/2-1/2 – Pietrusiak, Bogdan – G40 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2+ 10. Kxh2 Qh4+
1969 FRG Ch Koenigsfeld GER – Round 1 – Degenhardt, Norbert – 0-1 – Rautenberg, Wilhelm – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. g3 O-O 10. Nxc6 bxc6

C80g — Open, Riga Variation (1908)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 exd4

Les coups candidats

7.Re1 — 95.6% (745 parties)

Ambassadeurs : Appelt, Gerd (8x), Pinter, Mark (7x), Gyimesi, Jen (7x), Talsma, Paul (7x), Murin, Pavol (6x), Nyland, Thomas (5x), Barron, Gonzalez Jose Gabriel (4x), Cadigoy, Alfonso Jr? D? (4x)

7.Nxd4 — 3.1% (24 parties)

Ambassadeurs : Grkinic, Goran (1x), Windels, Luc (1x), Collins, Steve (1x), Williams, Derek (1x), Russell, David (1x), Ravizzotti, Fabio (1x), Ficco, Corrado (1x), Menichetti, Maurizio (1x)

7.Qe2 — 0.5% (4 parties)

Ambassadeurs : Roselli Mailhe, Bernardo (1x), Peveroni, G. (1x), Avgousti, Petrakis (1x), Dinato, Eduardo Iglesias (1x), Haanpaa, Jorma (1x), Tolonen, Jouko (1x), Wanyama, Harold (1x), Baagande, Daniel Kasujja (1x)

7.Bxc6 — 0.5% (4 parties)

Ambassadeurs : Alexandria D. Clay (1x), Clayton, Darin (1x), De Lima, Alexsandro Barros (1x), KAISER, GABRIEL ELIAS. (1x), Duma, Leonid Vladimirovic (1x), Mironchik, Alexandr Fedorovich (1x), Alkkiomaki, Jyrki (1x), Appelt, Gerd (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Re1	7.Nxd4	7.Qe2	7.Bxc6
<1800	64	97%	3%	—	—
1800-2200	352	95%	4%	0%	1%
2200-2600	185	100%	—	—	—
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Re1	7.Nxd4	7.Qe2	7.Bxc6
1950s	8	100%	—	—	—
1960s	14	100%	—	—	—
1970s	25	96%	—	—	—
1980s	31	87%	—	6%	3%
1990s	73	100%	—	—	—
2000s	321	96%	4%	0%	—
2010s	255	95%	3%	0%	1%
2020s	52	94%	6%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Re1	95%	94%	▼ -1.1%
7.Nxd4	3%	6%	▲ +2.6%
7.Qe2	0%	0%	-0.4%
7.Bxc6	1%	0%	▼ -1.2%

Parties historiques

7.Re1 — 95.6% (745 parties)

1952 — Fichtl, Jiri vs Potucek, Ludovit — 1-0 — Tatranska ch CZE
1952 — Abiolla James vs Lerchs — 1-0 — Glasgow SCO
1955 — Bogdanovic, Rajko vs Prado, Jose Estevam de Almeida — 1-0 — Lyon FRA
1957 — Gross, Henry vs Loney, C. — 1-0 — San Quentin
1958 — Lorenzen, Bjoern vs Tomrell — 0-1 — Hamburg GER

7.Nxd4 — 3.1% (24 parties)

2000 — Ficco, Corrado vs Menichetti, Maurizio — 1-0 — Viareggio ITA
2001 — Collins, Steve vs Williams, Derek — 0-1 — ?
2001 — Covington Michael vs Purcell, Andrew — 1-0 — ?
2001 — Martin, Joel vs Lebon, Joffrey — 1/2-1/2 — France
2002 — Grkinic, Goran vs Windels, Luc — 1-0 — IECG

7.Qe2 — 0.5% (4 parties)

1982 — Avgousti, Petrakis vs Dinato, Eduardo Iglesias — 0-1 — Lucerne SUI
1986 — Roselli Mailhe, Bernardo vs Peveroni, G. — 1-0 — Uruguay
2005 — Haanpaa, Jorma vs Tolonen, Jouko — 0-1 — Lahti
2012 — Wanyama, Harold vs Baagande, Daniel Kasujja — 1-0 — Kampala

7.Bxc6 — 0.5% (4 parties)

1985 — Alexandria D. Clay vs Clayton, Darin — 0-1 — ?
2014 — De Lima, Alexsandro Barros vs KAISER, GABRIEL ELIAS. — 1-0 — ?
2016 — Alkkiomaki, Jyrki vs Appelt, Gerd — 1/2-1/2 — Radebeul GER
2018 — Duma, Leonid Vladimirovic vs Mironchik, Alexandr Fedorovich — 1/2-1/2 — ICCF