B08d — Pirc: Classical, Spassky System, 6…a6

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.h3 O-O 6.Be3 a6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. a4 (72 % des parties) ; Bd3 (Fou actif (mobilité 5), Développer f1 — 13 % des parties) ; Qd2 (Prépare O-O-O — 10 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...b6 (Préparer le fianchetto — 45 % des parties) ; ...Nc6 (Développer b8 — 21 % des parties) ; ...b5 (Expansion aile dame — 20 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● g2→h3	● b7→a6, c7→d6, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (3v0), ● d5 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 5)
Be3	● Be3 Actif (mob. 5)
Bg7		● Bg7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (● f1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre	● Roqué
Droits de roque	O-O / O-O-O	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● e4-e5	● …c7-c5, ● …d6-d5, ● …e7-e5

Partie
11. Tal Mem Blitz 2018 – Round 9.6 – Andreikin, Dmitry – 0-1 – Artemiev, Vladislav – G62 1. Nf3 g6 2. e4 d6 3. d4 Nf6 4. Nc3 Bg7 5. h3 O-O 6. Be3 a6 7. a4 Nc6 8. d5 Nb8 9. Bd3 e6 10. dxe6 Bxe6
1951 YUG Ch 7th – Round 3 – Ivkov, Borislav – 1-0 – Rabar, Braslav – G24 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 O-O 6. Be3 a6 7. a4 c5 8. dxc5 Qa5 9. Nd2 Be6 10. cxd6 exd6
1965 Reggio Emilia 6566 – Round ? – Wagner, Alexander – 0-1 – Rabar, Braslav – G7 1. e4 d6 2. Nf3 Nf6 3. Nc3 g6 4. d4 Bg7 5. h3 O-O 6. Be3 a6 7. Qd2 b5 8. a3 Bb7 9. Bd3 Nbd7 10. Bh6 Nb6
1974 Manila – Round 9 – Kavalek, Lubomir – 1/2-1/2 – Pfleger, Helmut, Dr. – G110 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 O-O 6. Be3 a6 7. a4 b6 8. Bc4 e6 9. e5 dxe5 10. Nxe5 Bb7
ch-Wereld Teams 1989 – Round 1 – Ye Lin, Jennifer – 1/2-1/2 – Ehlvest, Jaan – G72 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 5. h3 O-O 6. Be3 a6 7. a4 Nc6 8. Be2 e5 9. O-O exd4 10. Nxd4 Re8
GCT Blitz Paris 2016 – Round 5.2 – Aronian, Levon – 1-0 – Caruana, Fabiano – G22 1. Nf3 d6 2. d4 Nf6 3. Nc3 g6 4. e4 Bg7 5. h3 O-O 6. Be3 a6 7. a4 b6 8. Qd2 Bb7 9. Bd3 Nbd7 10. O-O c5
Smyslov Region Group Cup 2021 – Round 7.3 – Artemiev, Vladislav – 1/2-1/2 – Chigaev, Maksim – G69 1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Be3 O-O 6. h3 a6 7. a4 b6 8. e5 Ne8 9. Bd3 c5 10. dxc5 bxc5
SportAccord Blitz Men 2013 – Round 19.4 – Nepomniachtchi, Ian – 0-1 – Dominguez Perez, Leinier – G145 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 O-O 6. Be3 a6 7. Bd3 Nc6 8. Qd2 e5 9. dxe5 Nxe5 10. Nxe5 dxe5
World Blitz 2015 – Round 13.6 – Nguyen, Ngoc Truong Son – 0-1 – Onyshchuk, Volodymyr – G833 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 O-O 6. Be3 a6 7. Bd3 Nc6 8. O-O e5 9. Qd2 Nh5 10. dxe5 dxe5
World Blitz 2015 – Round 7.2 – Vachier-Lagrave, Maxime – 1-0 – Petrosian, Tigran L. – G415 1. e4 d6 2. d4 g6 3. Nf3 Nf6 4. Nc3 Bg7 5. h3 O-O 6. Be3 a6 7. a4 b6 8. Bd3 Bb7 9. Qd2 Nbd7 10. Bh6 e5

B08d — Classical, Spassky System (1951)

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.h3 O-O 6.Be3 a6

Les coups candidats

7.a4 — 71.5% (969 parties)

Ambassadeurs : Espig, Lutz (10x), Ermenkov, Evgenij (6x), Ftacnik, Lubomir (6x), Chatalbashev, Boris (6x), Itkis, Boris (6x), Chernin, Alexander (5x), Tarmak, Mart (5x), Dedes, Nikolaos (4x)

7.Bd3 — 12.9% (175 parties)

Ambassadeurs : Zajic, Milan (5x), Sarno, Spartaco (3x), Manca, Federico (3x), Tan, Zhongyi (3x), Nepomniachtchi, Ian (2x), Bengtsson, Jessica (2x), Lengyel, Bela (1x), Vadasz, Laszlo (1x)

7.Qd2 — 10.1% (137 parties)

Ambassadeurs : Kotronias, Vasilios (3x), Hickman, Alex J (2x), Kadonas, Kestutis (2x), Darmanin, Jake (2x), Wagner, Alexander (1x), Rabar, Braslav (1x), Sandrin, Albert (1x), Tomas Batet, Joan (1x)

7.Be2 — 2.8% (38 parties)

Ambassadeurs : Novak, Ivan (1x), Glyanets, A (1x), Dally, Hans-Peter (1x), Padevsky, Nikola (1x), Thesing, Matthias (1x), Miles, Anthony J (1x), Karayiannis, Costas (1x), Fournarakos, Gerasimos (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.a4	7.Bd3	7.Qd2	7.Be2
<1800	52	50%	8%	35%	4%
1800-2200	427	69%	10%	15%	4%
2200-2600	761	75%	15%	6%	2%
2600+	17	65%	35%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	7.a4	7.Bd3	7.Qd2	7.Be2
1950s	1	100%	—	—	—
1960s	2	50%	—	50%	—
1970s	5	100%	—	—	—
1980s	101	77%	15%	5%	3%
1990s	248	81%	8%	5%	2%
2000s	357	71%	10%	15%	2%
2010s	524	67%	17%	10%	2%
2020s	118	65%	13%	9%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.a4	67%	65%	▼ -1.9%
7.Bd3	17%	13%	▼ -4.5%
7.Qd2	10%	9%	▼ -1.2%
7.Be2	2%	7%	▲ +4.3%

Parties historiques

7.a4 — 71.5% (969 parties)

1951 — Ivkov, Borislav vs Rabar, Braslav — 1-0 — Sarajevo BIH
1968 — Griffiths, Peter Charles vs Staples, Maurice J — 1-0 — ?
1974 — Kavalek, Lubomir vs Pfleger, Helmut, Dr. — 1/2-1/2 — Manila PHI
1974 — Barbeau, Robert vs Harper, Bruce — 0-1 — Vancouver BC CAN
1975 — Espig, Lutz vs Bak, Istvan — 1-0 — Budapest HUN

7.Bd3 — 12.9% (175 parties)

1980 — Lengyel, Bela vs Vadasz, Laszlo — 1-0 — Budapest ch-HUN
1982 — Marcussi, Bartolome J vs Richardson, Kai — 1/2-1/2 — cr.
1982 — McKay, Roderick M vs Hort, Vlastimil — 1-0 — Luzern olm
1982 — Zapata, Alonso vs Pfleger, Helmut, Dr. — 1/2-1/2 — Havana CUB
1982 — Lobron, Eric vs Seirawan, Yasser — 0-1 — Lucerne SUI

7.Qd2 — 10.1% (137 parties)

1965 — Wagner, Alexander vs Rabar, Braslav — 0-1 — Reggio Emilia ITA
1981 — Sandrin, Albert vs Tomas Batet, Joan — 1-0 — corr ICA
1982 — Yuaan Hassan Rasheed vs Pickering, Henry — 1-0 — Luzern olm
1986 — Bergmanis, Olgerts vs Mednis, Edmar J — 1/2-1/2 — ?
1989 — Kotronias, Vasilios vs Yrjola, Jouni — 1-0 — Haifa etc

7.Be2 — 2.8% (38 parties)

1989 — Novak, Ivan vs Glyanets, A — 1-0 — Marianske Lazne
1989 — Dally, Hans-Peter vs Padevsky, Nikola — 0-1 — Dortmund GER
1989 — Thesing, Matthias vs Miles, Anthony J — 0-1 — Bad Woerishofen GER
1994 — Bohlin, Ivar vs Hjortstam, Kurt — 1-0 — ?
1994 — Ramnathan, Balasubramaniam vs Norwood, David R — 0-1 — Kolkata