C68m — Spanish: Exchange, 5.O-O Bd6 6.d4 exd4

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bd6 6.d4 exd4 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Qxd4 (Centraliser la dame — 94 % des parties) ; Nxd4 (Cavalier centralisé en d4 — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...f6 (Poussée — 89 % des parties) ; ...Ne7 (Développer g8 — 4 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● c6, ● c7
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6, b7→c6
Passés	—	—
Majorité	—	● aile dame 4v3

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v1)	● b5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bd6		● Bd6 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	Non	● Oui
Non développées	3 (● b1, ● c1, ● a1)	4 (● g8, ● c8, ● 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	mobile
Ruptures	● c2-c3	● …d4-d3, ● …f7-f5

Partie
1903 RUS-ch03 – Round 3 – Bernstein, Olivia – 1-0 – Nikolaev, Bogdan – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Nbd2 Be6 9. Nc4 Ne7 10. b3 Bxc4
1964 Tel Aviv olm fin-B – Round 10 – Perez Perez, Francisco Jose – 1-0 – Brinck-Claussen, Bjorn – G123 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Nbd2 Ne7 9. Nc4 Be6 10. Qc3 Qd7
20. European Teams 2015 – Round 1.1 – Solak, Dragan – 1/2-1/2 – Svidler, Peter – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Be3 Ne7 9. Nbd2 Be6 10. Qc3 Qd7
20. European Teams 2015 – Round 5.9 – Solak, Dragan – 1/2-1/2 – Wojtaszek, Radoslaw – G234 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Be3 Ne7 9. Nbd2 Be6 10. Qc3 Qd7
20. European Teams 2015 – Round 8.5 – Nisipeanu, Liviu-Dieter – 1/2-1/2 – Carlsen, Magnus – G353 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Nbd2 Be6 9. b3 Qe7 10. Nc4 Bc5
43. Olympiad 2018 – Round 1.6 – Al-Zendani, Zendan – 0-1 – Fressinet, Laurent – G65 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Nbd2 Be6 9. Qc3 Ne7 10. Nc4 Bxc4
Corus A 2008 – Round 5 – Ivanchuk, Vasyl – 1/2-1/2 – Carlsen, Magnus – G31 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. b3 Ne7 9. Ba3 Bg4 10. Bxd6 Bxf3
EU Team Ch 1980 – Round 7 – Kurajica, Bojan – 1/2-1/2 – Balashov, Yuri S – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Nbd2 Nh6 9. Nc4 Nf7 10. b3 O-O
FIDE World Cup 2015 – Round 1.1 – Solak, Dragan – 0-1 – Korobov, Anton – G44 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Be3 Ne7 9. Nbd2 Be6 10. Qc3 Qd7
FIDE World Cup 2017 – Round 1.1 – Liu, Guanchu – 0-1 – Mamedyarov, Shakhriyar – G43 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Nc3 Ne7 9. Be3 Ng6 10. Nd2 Be6
World Blitz 2017 – Round 4.8 – Ivanchuk, Vasyl – 0-1 – Saini Vidit – G231 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Nbd2 Be6 9. Qc3 Ne7 10. Nc4 Bxc4
World Blitz 2018 – Round 8.38 – Sanal, Vahap – 0-1 – Maghsoodloo, Parham – G484 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Bd2 Ne7 9. Bb4 Bxb4 10. Qxb4 O-O
World Blitz 2019 – Round 10.33 – Sadhwani, Raunak – 0-1 – Svidler, Peter – G680 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Be3 Ne7 9. Nbd2 Be6 10. Rfd1 Ng6

C68m — Spanish: Exchange (1903)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bd6 6.d4 exd4

Les coups candidats

7.Qxd4 — 94.0% (1700 parties)

Ambassadeurs : Hebden, Mark L (47x), Van Riemsdijk, Herman C. (23x), Flear, Glenn C (17x), Westerinen, Heikki M.J. (15x), Howell, David W L (13x), Lukacs, Peter (10x), Wedberg, Tom (10x), Flear, Christine (10x)

7.Nxd4 — 5.3% (96 parties)

Ambassadeurs : Van Riemsdijk, Herman C. (7x), Lovejoy, David (2x), Gauche, Einar (1x), Carlier, Bruno (1x), Hebden, Mark L (1x), Borgstaedt, Michael (1x), Borgelt, Christian (1x), Melzer, Monika (1x)

7.e5 — 0.4% (7 parties)

Ambassadeurs : Linder, Isaak (1x), Flear, Glenn C (1x), Radomilja, Jure (1x), Susovic, Hrvoje (1x), Humeau, Cyril (1x), Pieri, Pierre-Louis (1x), Garcia Cachinero, Jesus (1x), Bermudez Hernandez, Rodrigo (1x)

7.Bg5 — 0.2% (3 parties)

Ambassadeurs : Fairclough, Neil (1x), Wedberg, Tom (1x), Pinho, Ana Clara Da Silva (1x), Baptista, Ana Filipa (1x), Nagy, Ferenc (1x), Nemeth, Csilla (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.Qxd4	7.Nxd4	7.e5	7.Bg5
<1800	150	89%	9%	1%	1%
1800-2200	608	94%	6%	1%	—
2200-2600	711	97%	3%	—	0%
2600+	43	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.Qxd4	7.Nxd4	7.e5	7.Bg5
1960s	5	100%	—	—	—
1970s	77	96%	4%	—	—
1980s	121	92%	7%	—	1%
1990s	328	91%	8%	0%	0%
2000s	520	94%	6%	0%	—
2010s	561	96%	3%	1%	0%
2020s	196	94%	5%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.Qxd4	96%	94%	▼ -1.3%
7.Nxd4	3%	5%	▲ +1.2%
7.e5	1%	0%	▼ -0.7%
7.Bg5	0%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 3 parties

Parties historiques

7.Qxd4 — 94.0% (1700 parties)

1964 — Perez Perez, Francisco Jose vs Brinck-Claussen, Bjorn — 1-0 — Tel Aviv olm
1967 — Aarav Maurya vs Saint Bonnet — 1/2-1/2 — Dieppe FRA
1967 — From, Sigfred vs Larsen, Poul M. — 0-1 — ?
1967 — Lipnowski, Irwin vs Lantos, Gabor — 1-0 — Ottawa CAN
1968 — Corominas, Francisco vs Kchouk, Bechir — 0-1 — Lugano SUI

7.Nxd4 — 5.3% (96 parties)

1973 — Hansson, Dan vs Fridh, Anton — 0-1 — Bollnas
1976 — Melzer, Monika vs Bade, Heidrun — 1-0 — Groeditz
1979 — Haberkorn, Danny vs Nielsen, Carsten Juul — 0-1 — dkch-jr Hinnerup
1980 — Vreeken, Corry vs Veroci, Zsuzsa — 0-1 — Malta ol women
1982 — Prods, Arvids vs Lovejoy, David — 1/2-1/2 — Melbourne AUS

7.e5 — 0.4% (7 parties)

1994 — Linder, Isaak vs Flear, Glenn C — 1/2-1/2 — Avoine FRA
2003 — Radomilja, Jure vs Susovic, Hrvoje — 0-1 — Stobrec
2007 — Humeau, Cyril vs Pieri, Pierre-Louis — 1-0 — Peru Casevechju
2011 — Svec, Ludek vs Kozak, Mi — 0-1 — Novy Bor CZE
2012 — Garcia Cachinero, Jesus vs Bermudez Hernandez, Rodrigo — 1/2-1/2 — Porlamar

7.Bg5 — 0.2% (3 parties)

1988 — Fairclough, Neil vs Wedberg, Tom — 0-1 — Thessaloniki olm
1999 — Pinho, Ana Clara Da Silva vs Baptista, Ana Filipa — 0-1 — POR-chW Lisboa
2013 — Nagy, Ferenc vs Nemeth, Csilla — 1-0 — HUN

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