Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d6
Chaînes	● g2→f3, f3→e4	● d6→e5
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	● d5
Centre	● d4 (2v1)	● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Be6		● Be6 Actif (mob. 8)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● c1, ● f1, ● a1, ● h1)	4 (● b8, ● 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	● f3-f4	● …d6-d5

B54n — Sicilian: Prins (Moscow), 5…e5 6.Nb3 Be6

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Nb3 Be6 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. c4 (Frapper le centre adverse — 91 % des parties) ; Nc3 (Développer b1 — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nbd7 (Développer b8 — 39 % des parties) ; ...a5 (25 % des parties) ; ...Be7 (Développer f8 — 21 % des parties) ; ...Qc7 (Prépare O-O-O — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1946 Hastings4647 – Round 1 – Prins, Laura – 0-1 – Aitken, James – G3 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Qc8 8. N3d2 Be7 9. Be2 O-O 10. b3 Nc6
1949 URSS (URS Ch, semi final) - Round 1 - Khasin, Abram - 0-1 - Goldberg, Grigory A - G180 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. Bg5 Be7 8. c4 Nbd7 9. Be3 Rc8 10. N1d2 O-O
1950 Bled – Round 1 – O'Kelly, Albéric de Galway – 1/2-1/2 – Rabar, Braslav – G8 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Nbd7 8. Be3 Rc8 9. Nc3 Bxc4 10. Bxc4 Rxc4
1952 Helsinki olm – Round 1 – Filip, Marius Liviu – 1/2-1/2 – Najdorf, Miguel – G111 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. Bg5 Be7 8. Bb5+ Nc6 9. Nc3 O-O 10. Qd2 a6
1952 Saltsjobaden Interzonal – Round 2 – Prins, Laura – 0-1 – Stahlberg, Gideon – G15 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. Bg5 Be7 8. Bb5+ Nc6 9. Qe2 O-O 10. O-O a6
1953 Sofia (BUL-DDR m) - Round 2.1 - Fuchs, Reinhart - 0-1 - Milev, Zdravko - G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Qc7 8. Na3 a6 9. Be3 Nc6 10. Qd2 d5
1955 Ljubljana – Round 14 – Karaklajic, Nikola – 1-0 – Bertok, Mario Jr. – G121 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Nbd7 8. Nc3 Rc8 9. Nd5 Nb6 10. Nd2 Nfxd5
1962 Varna olm – Round 9 – Prins, Laura – 0-1 – Ivkov, Borislav – G403 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. Nc3 Be7 8. Bb5+ Nbd7 9. O-O O-O 10. Qe2 Nb6
GCT Blitz YourNextMove 2016 – Round 7.4 – So, Wesley – 1-0 – Topalov, Veselin – G34 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Nbd7 8. Be3 Rc8 9. Nc3 Bxc4 10. Bxc4 Rxc4
Mtel Masters 2005 – Round 2 – Ponomariov, Ruslan – 1/2-1/2 – Polgar, Judit – G4 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 a5 8. Be3 Be7 9. Be2 a4 10. N3d2 Qa5
World Blitz 2007 – Round 38 – Rublevsky, Sergei – 1-0 – Ponomariov, Ruslan – G369 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Nbd7 8. Be3 Rc8 9. Nc3 Bxc4 10. Bxc4 Rxc4
World Blitz 2015 – Round 5.65 – Grigoriants, Sergey – 1-0 – Antipov, Mikhail Al. – G328 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 a5 8. Be3 a4 9. N3d2 Qa5 10. Bd3 Be7
World Rapid 2016 – Round 1.7 – Anand, Viswanathan – 1-0 – Jumabayev, Rinat – G46 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Nbd7 8. Be3 Rc8 9. Nc3 Bxc4 10. Bxc4 Rxc4

B54n — Prins (Moscow) (1946)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Nb3 Be6

Les coups candidats

7.c4 — 90.7% (1270 parties)

Ambassadeurs : Kasparov, Sergey (17x), Vegjeleki, Adolf (10x), Adams, Mark (10x), Volodarsky, Yury Aleksandrovich (9x), Salzmann, Stefan (9x), Gvetadze, Sofio (8x), Blazeka, Matej (8x), Dubuc, Serge (8x)

7.Nc3 — 4.8% (67 parties)

Ambassadeurs : Randolph, Donald (4x), Salmensuu, Olli (3x), Vuckovic, Bojan (3x), Sjugirov, Sanan (2x), Haller, Philipp (2x), Skeel, A. (1x), Joyner, Lionel (1x), Prins, Lodewijk (1x)

7.Bg5 — 2.4% (34 parties)

Ambassadeurs : Kalies, Grit, Dr. (3x), Prins, Lodewijk (2x), Calota, Alina-Iuliana (2x), Qveliashvili, Tinatin (2x), Anka, Emil (2x), Stahlberg, Gideon (1x), Filip, Miroslav (1x), Miguel, Nahuel (1x)

7.Be3 — 1.8% (25 parties)

Ambassadeurs : Mocanu, Valeria (2x), Sipos, Istvan (1x), Boros, Denes (1x), Efkarpidis, stylianos (1x), Nikolaou, Georgios (1x), Dang The Nam (1x), Chu Truong Vy (1x), Haszon, David (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.c4	7.Nc3	7.Bg5	7.Be3
<1800	78	85%	9%	3%	4%
1800-2200	598	88%	5%	3%	3%
2200-2600	637	95%	3%	2%	0%
2600+	19	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.c4	7.Nc3	7.Bg5	7.Be3
1950s	13	77%	—	23%	—
1960s	2	—	100%	—	—
1970s	1	—	100%	—	—
1980s	3	100%	—	—	—
1990s	62	84%	8%	8%	—
2000s	288	89%	6%	3%	2%
2010s	783	91%	4%	2%	2%
2020s	248	94%	3%	0%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.c4	91%	94%	▲ +2.5%
7.Nc3	4%	3%	▼ -1.1%
7.Bg5	2%	0%	▼ -1.6%
7.Be3	2%	2%	+0.2%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 1 partie

Parties historiques

7.c4 — 90.7% (1270 parties)

1950 — O'Kelly, Albéric de Galway vs Rabar, Braslav — 1/2-1/2 — Bled SLO
1951 — Prins, Lodewijk vs Paoli, Enrico — 1-0 — Bad Pyrmont GER
1952 — Kieninger, Georg vs Lob, Paulin — 1/2-1/2 — Lucerne SUI
1953 — Fuchs, Reinhart vs Milev, Zdravko — 0-1 — Sofia BUL
1953 — Koch, Berthold vs Kuebart, Erich — 1-0 — Jena GER

7.Nc3 — 4.8% (67 parties)

1962 — Prins, Lodewijk vs Ivkov, Borislav — 0-1 — Varna olm
1969 — Skeel, A. vs Joyner, Lionel — 0-1 — ?
1976 — Bramley, E. vs De Coverly, Roger D — 0-1 — Slough
1997 — De Pender, Paul vs Willemze, Thomas — 1-0 — Leiden NED
1997 — Kasimdzhanov, Rustam vs Georgiev, Kiril — 0-1 — Metz FRA

7.Bg5 — 2.4% (34 parties)

1950 — Prins, Lodewijk vs Donner, Jan-Hein — 0-1 — Match
1952 — Prins, Lodewijk vs Stahlberg, Gideon — 0-1 — Stockholm izt
1952 — Filip, Miroslav vs Miguel, Nahuel — 1/2-1/2 — Helsinki olm
1997 — Calota, Alina-Iuliana vs Qveliashvili, Tinatin — 0-1 — EuYouth U16 Girls Tallinn
1997 — Calota, Alina-Iuliana vs Qveliashvili, Tinatin — 0-1 — EuYouth U16 Girls, Tallinn ES

7.Be3 — 1.8% (25 parties)

2002 — Sipos, Istvan vs Boros, Denes — 1/2-1/2 — Budapest HUN
2004 — Efkarpidis, stylianos vs Nikolaou, Georgios — 0-1 — Agios Kirykos GRE
2004 — Dang The Nam vs Chu Truong Vy — 1-0 — Vung Tau VIE
2008 — Sliwinski, Marcin vs Kusina, Jan — 1/2-1/2 — Ustron
2009 — Haszon, David vs Farkas, Gabor — 0-1 — Miskolc