Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d2→c3	● d6→e5, b7→a6, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d5 (1v0)	● e5 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Ba4	● Ba4 Actif (mob. 4)
Bd7		● Bd7 Actif (mob. 5)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	4 (● b1, ● c1, ● a1, ● h1)	4 (● g8, ● f8, ● 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	fermé
Ruptures	● d2-d4	● …d6-d5, ● …f7-f5

C75a — Spanish: Modern Steinitz, 5.c3 Bd7

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. d4 (Occuper le centre — 55 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 42 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...g6 (Préparer le fianchetto — 42 % des parties) ; ...Nge7 (Développer g8 — 33 % des parties) ; ...Nf6 (Développer g8 — 20 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1927 Scarborough Premier 3rd – Round 7 – Barlow, Henry Stephens – 1-0 – Saunders, Harold – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d3 g6 7. Bg5 Nce7 8. Bb3 h6 9. Be3 Bg7 10. d4 Nc6
1929 Barcelona Barcelona ESP – Round 10 – Tartakower, Savielly – 1/2-1/2 – Capablanca, Jose – G28 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d3 g6 7. Bg5 f6 8. Be3 Bg7 9. b4 Qe7 10. Qd2 f5
1934 Leningrad ch-URS – Round 1 – Kan, Ilya A – 1-0 – Rauzer, Vsevolod – G126 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d3 g6 7. Be3 Bg7 8. Qc1 Qe7 9. O-O h6 10. Re1 Nf6
1939 AUS Ch – Round 1.2 – Gyles, Alfred – 0-1 – Koshnitsky, Gregory – G1 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d3 g6 7. Nbd2 Bg7 8. Nf1 Nf6 9. Ne3 h6 10. Qe2 Ne7
1946 London Championship Final – Round 2 – Wenman, Francis Percival – 0-1 – Thomas, George Alan – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d3 g6 7. Bg5 f6 8. Be3 Nh6 9. Qd2 Ng4 10. h3 Nxe3
1951 Vancouver – Round 1 – Jursevskis, Aleks – 0-1 – Bohatirchuk, Fedor – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d3 Nge7 7. Bb3 h6 8. Be3 Ng6 9. d4 Be7 10. dxe5 dxe5

C75a — Morphy Defense, Modern Steinitz Defense (1927)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7

Les coups candidats

6.d4 — 55.0% (2318 parties) →

Ambassadeurs : Sliwa, Bogdan (31x), Nezhmetdinov, Rashid (24x), Bronstein, David I (20x), Suetin, Alexey S (14x), Malaniuk, Vladimir P (14x), Zude, Arno (14x), Keres, Paul (13x), Filip, Miroslav (13x)

6.O-O — 41.7% (1756 parties) →

Ambassadeurs : Tuovinen, Jukka (17x), OBrien, Erik Michael (7x), Kulon, Klaudia (7x), Sliwa, Bogdan (6x), Damjanovic, Mato (6x), Zhang, Xiaowen (6x), Betaneli, Alexander (6x), Pfeiffer, Gerhard (5x)

6.d3 — 2.4% (102 parties)

Ambassadeurs : Veroci, Zsuzsa (2x), Zalys, Ignas (2x), Makropoulou, Marina (2x), Vinarcik, Jan (2x), Lindblom, Roar (2x), Sivaranjan, Aschmirthan (2x), Mucha, Adam (1x), Batik, Jiri (1x)

6.h3 — 0.3% (14 parties)

Ambassadeurs : Alvarez Gonzalo, Miguel Angel (1x), Ortiz Herranz, Eleazar (1x), Kitova, Tatiana (1x), Gordeeva, Tatyana (1x), Kosina, Vladimir (1x), Schwarz, Vojtech (1x), Rizzardi, Franco (1x), Salzano, Guido (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.d4	6.O-O	6.d3	6.h3
<1800	164	43%	49%	5%	1%
1800-2200	1172	42%	53%	4%	1%
2200-2600	1696	54%	44%	2%	0%
2600+	101	71%	29%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6.d4	6.O-O	6.d3	6.h3
1950s	357	78%	21%	1%	—
1960s	383	73%	26%	1%	—
1970s	222	67%	30%	3%	—
1980s	206	70%	28%	2%	—
1990s	550	61%	35%	3%	0%
2000s	841	53%	43%	3%	0%
2010s	1113	44%	52%	2%	1%
2020s	543	37%	60%	2%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.d4	44%	37%	▼ -6.6%
6.O-O	52%	60%	▲ +7.6%
6.d3	2%	2%	-0.2%
6.h3	1%	1%	+0.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Smyslov, Vladimir — 4 parties
Hou, Yifan — 4 parties
Karpov, Anatoly — 2 parties
Anand, Viswanathan — 2 parties
Kramnik, Vladimir — 2 parties
Botvinnik, Mikhail — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

6.d4 — 55.0% (2318 parties)

1950 — Schmid, Lothar vs Gumprich, Kurt — 1-0 — FRG-ch01 corr5052
1950 — Teschner, Rudolf vs Pfeiffer, Gerhard — 1/2-1/2 — FRG-ch Bad Pyrmont GER
1950 — Wade, Robert G vs Schmid, Lothar — 1-0 — m
1950 — Wade, Robert G vs Schmid, Lothar — 1-0 — Bamberg
1950 — Schmid, Lothar vs Abiolla James — 1-0 — Southsea ENG

6.O-O — 41.7% (1756 parties)

1950 — Bogoljubow, Efim vs Kieninger, Georg — 1/2-1/2 — Schwelm
1950 — Pilnik, Herman vs Almiron, Martin Alejandro — 1-0 — Dubrovnik olm
1951 — Seiffert, Ronny Steffen vs Krause, Kurt — 1/2-1/2 — Schwerin GER
1951 — Mangini, Jose Henrique de Mello vs Bolbochan, Jacobo — 0-1 — Mar del Plata ARG
1951 — Hunte, Hugo vs Elstner, Rudolf — 1/2-1/2 — Schwerin GER

6.d3 — 2.4% (102 parties)

1950 — Sigurdsson, Gudjon vs Nielsen, Palle — 1-0 — Reykjavik ISL
1951 — Jursevskis, Walter vs Bohatyrchuk, Fedir Parfenovych — 0-1 — Vancouver
1960 — Cuntala, A. vs Hanks, John — 0-1 — Adelaide AUS
1968 — Mucha, Adam vs Batik, Jiri — 1-0 — corr ch12-TCH
1969 — Jovanovic, Katarina vs Veroci, Zsuzsa — 1/2-1/2 — ?

6.h3 — 0.3% (14 parties)

1998 — Alvarez Gonzalo, Miguel Angel vs Ortiz Herranz, Eleazar — 0-1 — ESP
2007 — Kitova, Tatiana vs Gordeeva, Tatyana — 0-1 — ?
2011 — Kosina, Vladimir vs Schwarz, Vojtech — 1-0 — Hradec Kralove CZE
2011 — Mihok-Juhasz, Barbara vs Halak, Miklos — 1-0 — HUN
2012 — Rizzardi, Franco vs Salzano, Guido — 0-1 — Fano

1927 Scarborough Premier 3rd – Round 7 – Barlow, Henry Stephens – 1-0 – Saunders, Harold – G20

1929 Barcelona Barcelona ESP – Round 10 – Tartakower, Savielly – 1/2-1/2 – Capablanca, Jose – G28

1934 Leningrad ch-URS – Round 1 – Kan, Ilya A – 1-0 – Rauzer, Vsevolod – G126

1939 AUS Ch – Round 1.2 – Gyles, Alfred – 0-1 – Koshnitsky, Gregory – G1

1946 London Championship Final – Round 2 – Wenman, Francis Percival – 0-1 – Thomas, George Alan – G4

1951 Vancouver – Round 1 – Jursevskis, Aleks – 0-1 – Bohatirchuk, Fedor – G15