A30n — English: Symmetrical, Hedgehog, 7.Re1

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.Re1 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte b5 et la paire de fous.

Côté adverse. Le fou enfermé en e7 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. d3 (Libérer Bc1) ; h3 (Empêcher ...Bg4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte e4, un fou actif en b7 et la paire de fous.

Côté adverse. Le fou enfermé en c1.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nc6 (Développer Nb8) ; ...Bg4 (Clouer Nf3) ; ...d6 (Rupture) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● b6→c5, a7→b6, d7→e6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	● e4 (2v1)
Cases faibles	—	—
Centre	● e5 (1v0)	● d5 (3v2), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Ok (mob. 3)
Bb7		● Bb7 Actif (mob. 6)
Be7		● Be7 Enfermé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	3 (b8, 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	● d2-d3, ● e2-e3	● …d7-d6, ● …d7-d5, ● …e6-e5

Partie
1948 Mar del Plata – Round 14 – De Freitas, Manuela Schmitz – 1-0 – Luckis, Marcos – G112 1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O c5 6. Nc3 Be7 7. Re1 O-O 8. e4 Nc6 9. d4 cxd4 10. Nxd4 Qc8
2. FIDE GP 2008 – Round 10 – Gelfand, Boris – 1-0 – Ivanchuk, Vasyl – G58 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. e4 a6 9. d4 cxd4 10. Nxd4 Qc7
36. Olympiad 2004 – Round 2 – Agrest, Evgenij – 1/2-1/2 – Ghaem Maghami, Ehsan – G69 1. Nf3 Nf6 2. c4 e6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 O-O
36. Olympiad 2004 – Round 8 – Sasikiran, Krishnan – 1/2-1/2 – Vallejo Pons, Francisco – G292 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 O-O
FIDE World Cup 2019 – Round 3.4 – Giri, Anish – 1/2-1/2 – Xiong, Jeffery – G344 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 Nc6
Fontys 1997 – Round 8 – Kramnik, Vladimir – 1/2-1/2 – Leko, Peter – G2 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. e4 a6 9. d4 cxd4 10. Nxd4 Qc7
Gjovik Aker CC Rapid 2009 – Round 2 – Svidler, Peter – 1/2-1/2 – Carlsen, Magnus – G2 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d4 O-O 10. Bf4 d6
Interpolis 1993 – Round 3 – Vaganian, Rafael A – 1/2-1/2 – Yermolinsky, Alex – G133 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O c5 6. Nc3 Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 Nc6
Investbanka 1997 – Round 2 – Gelfand, Boris – 1/2-1/2 – Ljubojevic, Ljubomir – G6 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. e4 a6 9. d4 cxd4 10. Nxd4 Qc7
London Classic Elite blitz 6th 2014 – Round 4.2 – Caruana, Fabiano – 1-0 – Adams, Michael – G11 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 c5 5. O-O e6 6. Nc3 Be7 7. Re1 d6 8. e4 a6 9. d4 cxd4 10. Nxd4 Qc7
Manila Interzonal 1990 – Round 9 – Ehlvest, Jaan – 1-0 – Illescas Cordoba, Miguel – G160 1. Nf3 c5 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Nf6 6. Nc3 Be7 7. Re1 Nc6 8. e4 O-O 9. d4 cxd4 10. Nxd4 Nxd4
Mar del Plata 1982 – Round 1 – Larsen, Bent – 0-1 – Quinteros, Miguel Angel – G16 1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 O-O 8. e4 d6 9. d4 cxd4 10. Nxd4 Qc7
Mtel Masters 2005 – Round 8 – Ponomariov, Ruslan – 1/2-1/2 – Anand, Viswanathan – G14 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 Nc6
Olympiad 2002 – Round 11 – Rahman, Ziaur – 1-0 – Nisipeanu, Liviu-Dieter – G390 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. e4 a6 9. d4 cxd4 10. Nxd4 Qc7
Olympiad 2002 – Round 13 – Ehlvest, Jaan – 1/2-1/2 – Ghaem Maghami, Ehsan – G469 1. Nf3 c5 2. c4 Nf6 3. Nc3 b6 4. g3 Bb7 5. Bg2 e6 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 d6
Olympiad 2002 – Round 5 – Bu, Xiangzhi – 1/2-1/2 – Ibrahimov, Rafiq – G167 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. d4 cxd4 9. Qxd4 O-O 10. e4 Nbd7
Ruy Lopez Memorial 1975 – Round 11 – Bellon Lopez, Juan Manuel – 1/2-1/2 – Ljubojevic, Ljubomir – G26 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 O-O 8. e4 a6 9. d4 cxd4 10. Nxd4 Ra7
SportAccord Blitz 2014 – Round 5.2 – Ivanchuk, Vasyl – 1-0 – Wojtaszek, Radoslaw – G34 1. Nf3 Nf6 2. c4 e6 3. Nc3 b6 4. g3 Bb7 5. Bg2 c5 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 Nc6
SuperGM 2002 – Round 11 – Vallejo Pons, Francisco – 1/2-1/2 – Adams, Michael – G24 1. Nf3 Nf6 2. c4 e6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 O-O
Tal Memorial Blitz 2008 – Round 8 – Ponomariov, Ruslan – 1/2-1/2 – Carlsen, Magnus – G70 1. Nf3 Nf6 2. c4 e6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. d4 Nxc3 9. bxc3 Be4 10. Bf1 O-O
Tal Memorial Blitz 2008 – Round 9 – Gelfand, Boris – 1/2-1/2 – Leko, Peter – G79 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 Nc6
Tal Memorial Blitz 2014 – Round 9.1 – Svidler, Peter – 1-0 – Kosteniuk, Alexandra – G49 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O Be7 6. Re1 c5 7. Nc3 O-O 8. e4 d6 9. d4 cxd4 10. Nxd4 Nfd7
Thessaloniki olm 1984 – Round 4 – Miles, Anthony J – 1/2-1/2 – Olafsson, Fridrik – G27 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. e4 a6 9. d4 cxd4 10. Nxd4 Qc7
WCh-FIDE 2005 – Round 4 – Topalov, Veselin – 1-0 – Adams, Michael – G9 1. Nf3 Nf6 2. c4 e6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. d4 Nxc3 9. bxc3 Be4 10. Bf1 d6
World Blitz 2009 – Round 33 – Svidler, Peter – 0-1 – Leko, Peter – G337 1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d4 O-O 10. Bf4 d6
World Blitz 2009 – Round 7 – Svidler, Peter – 1/2-1/2 – Carlsen, Magnus – G62 1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. Re1 d6 8. e4 a6 9. d4 cxd4 10. Nxd4 Qc7
World Blitz 2009 – Round 8 – Leko, Peter – 1/2-1/2 – Gashimov, Vugar – G83 1. Nf3 Nf6 2. c4 e6 3. g3 c5 4. Bg2 b6 5. O-O Bb7 6. Nc3 Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 O-O
World Blitz 2015 – Round 3.33 – Radjabov, Teimour – 1-0 – Papin, Vasily – G164 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d4 O-O 10. Be3 cxd4
World Blitz 2018 – Round 10.14 – Duda, Jan-Krzysztof – 1-0 – Oparin, Grigoriy – G575 1. Nf3 Nf6 2. c4 e6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. d4 Nxc3 9. bxc3 d6 10. e4 O-O
World Blitz 2019 – Round 9.33 – Predke, Alexandr – 1-0 – Sarana, Alexey – G616 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 O-O
World Blitz 2021 – Round 15.55 – Christiansen, Johan-Sebastian – 0-1 – Puranik, Abhimanyu – G906 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. Re1 O-O 8. e4 d6 9. d4 cxd4 10. Nxd4 Qc8
World Rapid 2019 – Round 9.88 – Gukesh D – 1-0 – Carlsson, Pontus – G616 1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. Re1 Ne4 8. Nxe4 Bxe4 9. d3 Bb7 10. e4 O-O
Yerevan ol (Men) 1996 – Round 10 – Vaganian, Rafael A – 0-1 – Adams, Michael – G154 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. Re1 Ne4 8. Qc2 Nxc3 9. dxc3 Qc7 10. Bf4 d6
Yerevan ol (Men) 1996 – Round 12 – Kramnik, Vladimir – 1/2-1/2 – Yudasin, Leonid – G184 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 Ne4 8. d4 Nxc3 9. bxc3 Be4 10. Bh3 Bxf3
Zurich Korchnoi CC 2017 – Round 6.3 – Nepomniachtchi, Ian – 1-0 – Pelletier, Yannick – G23 1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. d4 cxd4 9. Nxd4 Bxg2 10. Kxg2 O-O

A30n — Symmetrical Hedgehog

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.Re1

Eval: [+0.25]

Les coups candidats

7…d6 — 34.0% (1442 parties)

Ambassadeurs : Shipov, Sergei (17x), Ornstein, Axel (9x), Nisipeanu, Liviu-Dieter (8x), Greenfeld, Alon (8x), Pogorelov, Ruslan (8x), Simantsev, Mikhail (7x), Bischoff, Klaus (6x), Spraggett, Kevin (6x)

7…d5 — 23.4% (992 parties) →

Ambassadeurs : Ftacnik, Lubomir (18x), Akesson, Ralf (13x), Ulybin, Mikhail (12x), Browne, Walter Shawn (11x), Jurek, Josef (9x), Chuchelov, Vladimir (8x), Bar, Roman (8x), Szmetan, Jorge (6x)

7…O-O — 22.6% (957 parties)

Ambassadeurs : Danailov, Silvio (4x), Garcia Rodriguez, Raimundo (4x), Goletiani, Rusudan (4x), Apro, Adrian (4x), Wojtkiewicz, Aleksander (4x), Nadjezhdin, Dmitry (4x), Dronavalli, Harika (4x), Suba, Mihai (3x)

7…Ne4 — 13.1% (557 parties)

Ambassadeurs : Adams, Michael (8x), Ftacnik, Lubomir (8x), Yermolinsky, Alex (7x), Roeder, Matthias (7x), Astrom, Goran (6x), Perunovic, Miodrag (6x), Lysyj, Igor (6x), Vaganian, Rafael A (6x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7…d6	7…d5	7…O-O	7…Ne4
<1800	28	43%	18%	18%	11%
1800-2200	823	32%	22%	33%	8%
2200-2600	2989	36%	22%	20%	14%
2600+	150	16%	48%	4%	28%

Évolution par décennie (% des parties)

Décennie	N parties	7…d6	7…d5	7…O-O	7…Ne4
1940s	1	—	—	100%	—
1950s	1	—	100%	—	—
1960s	2	—	50%	50%	—
1970s	29	28%	31%	34%	3%
1980s	163	31%	35%	21%	6%
1990s	583	34%	26%	26%	8%
2000s	1767	39%	20%	21%	13%
2010s	1413	31%	23%	23%	16%
2020s	277	22%	34%	23%	15%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7…d6	31%	22%	▼ -9.1%
7…d5	23%	34%	▲ +11.3%
7…O-O	23%	23%	+0.3%
7…Ne4	16%	15%	▼ -1.1%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 7 parties
Carlsen, Magnus — 6 parties
Hou, Yifan — 5 parties
Karpov, Anatoly — 4 parties
Gukesh D — 4 parties
Ju, Wenjun — 3 parties
Tal, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Botvinnik, Mikhail — 1 partie

Parties historiques

7…d6 — 34.0% (1442 parties)

1977 — Suba, Mihai vs Fernandez Gonzalez, Juan Alfonso — 1/2-1/2 — Decin CZE
1977 — Kristiansen, Erling vs Bellon Lopez, Juan Manuel — 1-0 — Torremolinos ESP
1977 — Schinzel, Wladyslaw vs Adamski, Jan — 1/2-1/2 — Piotrkow Trybunalski
1978 — Speelman, Jon S vs Ornstein, Axel — 0-1 — Londen open
1978 — Piasetski, Leon vs Rohland, Michael Karl — 1-0 — Toronto ch-CAN - zt

7…d5 — 23.4% (992 parties)

1951 — Coosemans, Billy vs Boey, Josef — 1-0 — Antwerp BEL
1960 — Peterson, Andrejs vs Antoshin, Vladimir S — 1/2-1/2 — Vilnius LTU
1974 — Shirazi, Kamran vs Sharif, Mehrshad — 0-1 — Iran
1976 — Taimanov, Mark vs Jansa, Vlastimil — 1/2-1/2 — Hastings ENG
1976 — Suba, Mihai vs Adamski, Jan — 1/2-1/2 — Sandomierz Vitrobud POL

7…O-O — 22.6% (957 parties)

1948 — De Freitas, Manuela Schmitz vs Luckis, Marcos — 1-0 — Mar del Plata ARG
1968 — Skegina, Klaara vs ? — 1-0 — Ashkhabad
1975 — Bellon Lopez, Juan Manuel vs Ljubojevic, Ljubomir — 1/2-1/2 — Las Palmas ESP
1976 — Suba, Mihai vs Radovici, Corvin — 0-1 — Timisoara
1976 — Razuvaev, Yuri S vs Grigoryan, Karen A. — 1-0 — Moscow Burevestnik-S

7…Ne4 — 13.1% (557 parties)

1977 — Kirov, Nino vs Stoilov, Atanas — 1-0 — Pasardschik
1980 — Vaganian, Rafael A vs Vitolinsh, Alvis — 1/2-1/2 — Erevan ARM
1982 — Akesson, Ralf vs Fedder, Steen — 1/2-1/2 — Copenhagen DEN
1982 — Zlotnikov, Mikhail vs Wells, Peter K — 1/2-1/2 — Londen open
1983 — Welin, Thomas vs Bednarski, Jacek — 1-0 — Stockholm SWE

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