Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● d2→e3, f2→e3, f2→g3, h2→g3	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e4 (2v1), ● b5 (2v0), ● d5 (3v1)	● b4 (2v0)
Cases faibles	—	—
Centre	● d5 (3v1), ● e4 (2v1)	● d4 (3v1), ● e5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Actif (mob. 6)
Bc5		● Bc5 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (● g1, ● c1, ● a1, ● h1)	3 (● 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, ● f2-f4	● …d7-d5

A25v — English: Closed

1.c4 e5 2.Nc3 Nc6 3.g3 Nf6 4.Bg2 Bc5 5.e3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nge2 (Développer g1 — 75 % des parties) ; a3 (Préparer expansion aile dame — 10 % des parties) ; Nxd5 (Cavalier centralisé en d5 — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...O-O (Mettre le roi en sécurité, connecter les tours — 49 % des parties) ; ...d6 (Libérer Bc8 — 34 % des parties) ; ...d5 (Occuper le centre — 9 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1934 Zuerich – Round 1 – Joss, Hermann – 0-1 – Bernstein, Olivia – G5 1. c4 Nf6 2. g3 e5 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 d6 6. a3 O-O 7. b4 Bb6 8. Na4 e4 9. f4 a5 10. Nxb6 cxb6
1938 Leningrad – Round 1 – Shamaev, Leonid – 1-0 – Kopaev, Nikolay A – G1 1. c4 Nf6 2. Nc3 Nc6 3. g3 e5 4. Bg2 Bc5 5. e3 O-O 6. Nge2 Re8 7. d3 d6 8. O-O Bg4 9. h3 Bd7 10. a3 a5
1947 Nt Lueneburg GER – Round 5 – Heinicke, Herbert – 1-0 – Braun Harms, Daniel – G13 1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bc5 5. e3 Qe7 6. d3 d6 7. Nge2 Be6 8. Nd5 Bxd5 9. cxd5 Nb4 10. Nc3 c6
1950 FRG Ch Bad Pyrmont GER – Round 10 – Bogoljubow, Efim – 1-0 – Schindler, Josef – G27 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 O-O 6. Nge2 d6 7. d4 exd4 8. exd4 Bb4 9. O-O Bxc3 10. Nxc3 Re8
1953 GER Ch 15th – Round 6 – Herrmann, Ludwig – 1-0 – Ahues, Carl – G13 1. c4 Nf6 2. Nc3 e5 3. g3 Nc6 4. Bg2 Bc5 5. e3 O-O 6. Nge2 Re8 7. d3 Bf8 8. O-O d6 9. h3 Ne7 10. f4 c6
1953 HUN Ch Budapest HUN – Round 1 – Barcza, Gedeon – 1-0 – Rethy, Pal – G5 1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bc5 5. e3 O-O 6. Nge2 Re8 7. O-O Bf8 8. d4 d6 9. d5 Ne7 10. e4 a5
1955 Buenos Aires CA – Round 4 – Bianco Esposito, Antonio – 1/2-1/2 – Bisguier, Arthur B – G29 1. c4 Nc6 2. Nc3 e5 3. g3 Nf6 4. Bg2 Bc5 5. e3 O-O 6. Nge2 Re8 7. d3 d6 8. h3 Bf5 9. O-O Qd7 10. Kh2 e4
1955 Poland ch13 – Round 9 – Gawlikowski, Stanislaw – 0-1 – Luczynowicz, Waclaw – G27 1. c4 Nf6 2. Nc3 e5 3. g3 Nc6 4. Bg2 Bc5 5. e3 d6 6. Nge2 O-O 7. O-O Bf5 8. d4 Bb6 9. b4 Nxb4 10. Bxb7 Rb8
1956 CSR Ch – Round 14 – Alster, Ladislav – 1-0 – Florian, Jaromir – G124 1. c4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 Nf6 5. e3 d6 6. Nge2 Bg4 7. h3 Bf5 8. d4 Bb6 9. b4 a5 10. b5 Nb4
1957 Minsk zt – Round 8 – Roizman, Abram Y – 0-1 – Skuja Roberts – G52 1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bc5 5. e3 O-O 6. Nge2 Re8 7. O-O a6 8. d4 Ba7 9. d5 Ne7 10. h3 d6
1959 HUN Ch Budapest HUN – Round 7 – Portisch, Lajos – 1/2-1/2 – Florian, Tibor – G26 1. c4 Nf6 2. g3 e5 3. Nc3 Nc6 4. Bg2 Bc5 5. e3 O-O 6. Nge2 Re8 7. d3 a6 8. O-O d6 9. a3 Ba7 10. b4 Bg4
1963 CSR Ch – Round 14 – Filip, Miroslav – 1-0 – Augustin, Josef – G123 1. c4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 Nf6 5. e3 d6 6. Nge2 Qe7 7. d3 h5 8. h3 Bb6 9. a3 Be6 10. Nd5 Bxd5
1964 BRA zn – Round 3 – Lazzarini Decio – 0-1 – De Freitas, Marcio Elisio – G3 1. c4 Nc6 2. Nc3 Nf6 3. g3 e5 4. Bg2 Bc5 5. e3 O-O 6. a3 d6 7. b4 Bb6 8. h3 Bf5 9. d3 h6 10. Bb2 Re8
1966 La Habana olm fin-C – Round 10 – Cevallos, Alejandro – 0-1 – Ujtumen, Tudev – G24 1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bc5 5. e3 h5 6. h3 d6 7. Nge2 Bf5 8. d4 Bb6 9. a3 Qe7 10. O-O Qd7
1966 URS Team Ch – Round 1 – Korchnoi, Viktor – 1-0 – Reshko, Aron – G72 1. g3 Nf6 2. Bg2 e5 3. c4 Nc6 4. Nc3 Bc5 5. e3 d6 6. Nge2 O-O 7. d4 Bb6 8. O-O a5 9. h3 Re8 10. d5 Ne7
1968 Buesum – Round 5 – Huebner, Robert – 1-0 – Saemisch, Friedrich – G7 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 O-O 6. Nge2 Re8 7. d3 a6 8. O-O d6 9. a3 Ba7 10. b4 Ne7
42. Olympiad 2016 – Round 1.22 – Machin Rivera, Mark – 0-1 – Zhigalko, Sergei – G33 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 O-O 6. Nge2 a6 7. O-O d6 8. b3 Ba7 9. d4 Re8 10. h3 h6
6. World Blitz 2010 – Round 24.10 – Gelfand, Boris – 1-0 – Movsesian, Sergei – G168 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 Nf6 5. e3 O-O 6. Nge2 a6 7. O-O d6 8. d3 Ba7 9. b3 Be6 10. Nd5 Ne8
FIDE World Cup 2015 – Round 2.8 – Laznicka, Viktor – 1/2-1/2 – Adams, Michael – G311 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 O-O 6. a3 a6 7. Nge2 d6 8. h3 Ba7 9. O-O Re8 10. d4 h6
World Blitz 2015 – Round 15.59 – Mikhalevski, Victor – 0-1 – Grigoriants, Sergey – G961 1. c4 Nf6 2. g3 e5 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 d6 6. Nge2 a6 7. b3 O-O 8. Bb2 Ba7 9. O-O Bf5 10. f4 e4
World Blitz 2015 – Round 18.59 – Bezold, Michael – 0-1 – Grigoriants, Sergey – G1144 1. c4 Nf6 2. g3 e5 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 d6 6. Nge2 a6 7. h3 Ba7 8. b3 O-O 9. O-O h6 10. Kh2 Bf5
World Blitz 2015 – Round 19.17 – Matlakov, Maxim – 0-1 – Vitiugov, Nikita – G1168 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 Nf6 5. e3 a6 6. Nge2 d6 7. d4 exd4 8. exd4 Ba7 9. O-O h6 10. h3 O-O
World Blitz 2015 – Round 5.9 – Ivanchuk, Vasyl – 1-0 – Movsesian, Sergei – G341 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 Nf6 5. e3 O-O 6. Nge2 a6 7. d3 d6 8. b3 Ba7 9. Bb2 Bg4 10. h3 Be6
World Rapid 2019 – Round 5.43 – Matlakov, Maxim – 0-1 – Narayanan, Sri Shiva Kumar – G327 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 Nf6 5. e3 O-O 6. a3 a5 7. Nge2 d6 8. d4 Ba7 9. O-O Ne7 10. b4 c6
World Rapid Final 2012 – Round 15 – Ivanchuk, Vasyl – 1-0 – Svidler, Peter – G112 1. c4 e5 2. g3 Nc6 3. Bg2 Nf6 4. Nc3 Bc5 5. e3 d5 6. cxd5 Nb4 7. Nf3 Nd3+ 8. Ke2 Bf5 9. Qa4+ c6 10. Nh4 Nxc1+

A25v — Closed (1934)

1.c4 e5 2.Nc3 Nc6 3.g3 Nf6 4.Bg2 Bc5 5.e3

Les coups candidats

5…O-O — 48.8% (1954 parties)

Ambassadeurs : Vetter, Udo (16x), Hjorth, Jesper (13x), Movsesian, Sergei (8x), Watson, Roland (7x), Morley, Paul (6x), Van Reybrouck, Hubert (5x), Skomorokhin, Roman (5x), Ales Ferenc (5x)

5…d6 — 29.4% (1178 parties)

Ambassadeurs : Rutter, Blair A (6x), Watson, Roland (4x), Hryniw, Michael (3x), B, Owen (3x), Martinez Alcantara, Jose Eduardo (3x), Noboa Silva, Kevin (3x), Ochs, Daniel Elias (3x), Bonoldi, Fabio (3x)

5…d5 — 12.5% (500 parties)

Ambassadeurs : Korneev, Oleg (7x), Degtiarev, Evgeny (6x), Bulmaga, Irina (6x), Tomescu, Vlad (4x), Roques, Pascal (4x), Kopp, Bernd, Dr. (3x), Miles, Anthony J (3x), Hodgson, Julian M (3x)

5…a6 — 6.0% (239 parties)

Ambassadeurs : Dominic Gabriel D. Serrano (1x), Profeta, Caio Almeida (1x), Tatarczak, Jan (1x), Holmela, Kari (1x), Fuller, Maxwell L (1x), Allen, Andrew (1x), Mate, Laszlo (1x), Kiss, Andrej (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…O-O	5…d6	5…d5	5…a6
<1800	533	48%	38%	4%	5%
1800-2200	1786	50%	28%	13%	6%
2200-2600	878	45%	23%	22%	8%
2600+	25	28%	16%	36%	20%

Évolution par décennie (% des parties)

Décennie	N parties	5…O-O	5…d6	5…d5	5…a6
1950s	17	59%	41%	—	—
1960s	18	33%	56%	—	—
1970s	22	45%	45%	9%	—
1980s	70	46%	30%	17%	3%
1990s	466	49%	34%	9%	4%
2000s	1138	49%	28%	14%	5%
2010s	1915	51%	28%	12%	7%
2020s	357	36%	34%	17%	8%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…O-O	51%	36%	▼ -14.9%
5…d6	28%	34%	▲ +6.2%
5…d5	12%	17%	▲ +5.7%
5…a6	7%	8%	▲ +1.6%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 1 partie
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

5…O-O — 48.8% (1954 parties)

1950 — Rudenko, Ludmila vs Rubtsova, Olga — 1-0 — Moscow RUS
1950 — Bogoljubow, Efim vs Heymann, Samuel — 1-0 — FRG-ch Bad Pyrmont GER
1952 — Joyner, Lionel vs Gordon Noel Pires — 1-0 — Los Angeles, CA USA
1953 — Anay Barche vs Rethy, Pal — 1-0 — HUN-ch Budapest HUN
1953 — Herrmann, Ludwig vs Ahues, Carl — 1-0 — Leipzig GER

5…d6 — 29.4% (1178 parties)

1952 — Joyner, Lionel vs Gordon Noel Pires — 1/2-1/2 — Los Angeles, CA USA
1954 — Cafferty, Bernard vs Correia, JB. — 1-0 — Birmingham ENG
1955 — Gawliczek, Andreas vs Luczynowicz, Waclaw — 0-1 — Poland ch13
1956 — Gromek, Jozef vs Rojahn, Ernst — 1-0 — Moskou olm
1956 — Black, Robert vs John A Walecka — 1-0 — ?

5…d5 — 12.5% (500 parties)

1973 — Adams Otwori Jared vs Pereyra, Manuel — 0-1 — corr GB-ARG
1977 — Behle, Burkhard, Dr. vs Kopp, Bernd, Dr. — 0-1 — ?
1980 — Leitner, Maximilian vs Kopp, Bernd, Dr. — 1/2-1/2 — GER
1981 — Skarke, Hermann vs Kopp, Peter, Dr. — 1-0 — FRG-ch17 corr7982
1981 — Fries-Nielsen, Jens Ove vs Kopp, Bernd, Dr. — 1/2-1/2 — Duitsland tt

5…a6 — 6.0% (239 parties)

1985 — Tatarczak, Jan vs Holmela, Kari — 1-0 — Benidorm
1989 — Dominic Gabriel D. Serrano vs Profeta, Caio Almeida — 1-0 — corr Italy
1990 — Stojakovic, Branko vs Gatalica, Arkadije — 1-0 — Pula CRO
1992 — Kern, Guido vs Moutousis, Konstantinos — 0-1 — Dortmund open I
1992 — Ajiri Norman Roger vs Tordion, Michel — 1-0 — Hull CAN

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