B08s — Pirc: Classical, 5.Be2 O-O 6.O-O c6 7.a4 Nbd7

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.a4 Nbd7 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte g5, Be2 actif, paire de fous.
Faiblesses adverses : Bg7 enfermé, Bc8 enfermé.
Problèmes : Bc1 enfermé.
Plans :
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : paire de fous.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bg7 enfermé, Bc8 enfermé.
Plans :
● ...Bg4 — Développer Bc8, clouer Nf3
● ...c5 — Rupture
● ...d5 — Rupture
● ...e6 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B08s — Classical

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.a4 Nbd7

Eval: [+0.59]

Les coups candidats

8.h3 — 35.1% (501 parties)

Ambassadeurs : Chatalbashev, Boris (7x), Sznapik, Aleksander (6x), Seret, Jean-Luc (5x), Ludgate, Alan (5x), Beim, Valeri (4x), Iordachescu, Viorel (4x), Piket, Jeroen (3x), Emmerich, Dirk (3x)

8.a5 — 20.7% (295 parties)

Ambassadeurs : Loginov, Valery A (7x), Lutz, Anke (5x), Beim, Valeri (5x), Narciso Dublan, Marc (4x), Donaldson-A, Elena (3x), Petursson, Magnus V. (3x), Kakageldyev, Amanmurad (3x), Maciejewski, Andrzej (3x)

8.Be3 — 17.1% (244 parties)

Ambassadeurs : Degterev, Pavel (4x), Ludgate, Alan (4x), Daurelle, Herve (3x), Guseinov, Gadir (3x), Shchekachev, Andrei (2x), Marin, Mihail (2x), Short, Nigel D (2x), Shirov, Alexei (2x)

8.e5 — 8.6% (123 parties)

Ambassadeurs : Matulovic, Milan (3x), Todorcevic Antic, Miodrag (3x), Martinovic, Slobodan (2x), Sznapik, Aleksander (2x), Antoshin, Vladimir S (1x), Schmid, Leo (1x), Britain, G. (1x), Coudari, Camille (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.h3	8.a5	8.Be3	8.e5
<1800	17	24%	24%	35%	—
1800-2200	366	38%	17%	19%	8%
2200-2600	798	35%	22%	17%	8%
2600+	26	8%	27%	27%	12%

Évolution par décennie (% des parties)

Décennie	N parties	8.h3	8.a5	8.Be3	8.e5
1960s	17	18%	12%	—	29%
1970s	55	22%	15%	22%	25%
1980s	83	34%	14%	7%	19%
1990s	379	34%	21%	13%	9%
2000s	391	34%	21%	21%	7%
2010s	425	37%	23%	20%	5%
2020s	78	50%	14%	13%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.h3	37%	50%	▲ +12.6%
8.a5	23%	14%	▼ -9.0%
8.Be3	20%	13%	▼ -7.2%
8.e5	5%	4%	▼ -1.3%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 2 parties
Kasparov, Garry — 1 partie

Parties historiques

8.h3 — 35.1% (501 parties)

1962 — Cafferty, Bernard vs Hindle, Owen M — 0-1 — ?
1965 — Janata, Michael vs Kubicek, Antonin — 1/2-1/2 — Klasterec nad Orlici
1969 — Etmans, Maarten vs Piket, Jeroen — 0-1 — Leeuwarden ch-NED
1974 — Silva Nazzari, Roberto vs Pastori, Ad — 0-1 — ?
1974 — Jensen, Allan Astrup vs Auchenberg, Per — 0-1 — DEN

8.a5 — 20.7% (295 parties)

1964 — Kozomara, Vlado vs Uhlmann, Wolfgang — 1/2-1/2 — Sarajevo BIH
1969 — Ryc, Ivo vs Thornally, Frank — 1-0 — Dresden GER
1974 — Tringov, Georgi P vs Fridjonsson, Julius — 1-0 — Reykjavik ISL
1976 — Tompa, Janos vs Petran, Pal — 0-1 — Budapest HUN
1976 — Kinnmark, Ove vs Kaiszauri, Konstanty — 1-0 — Sweden

8.Be3 — 17.1% (244 parties)

1973 — Geller, Efim P. vs Aczel Szabo, Janos — 1-0 — Hilversum AVRO
1974 — Gilden, Lawrence vs Conover, Wayne — 1-0 — New York, NY USA
1975 — Velibekov, A vs Kirpichnikov, Vladimir — 1/2-1/2 — Riga LAT
1975 — Adamski, Jan vs Petran, Peter — 1/2-1/2 — Rimavska Sobota SVK
1977 — Cardoso, Radolfo Tan vs Torre, Eugenio — 0-1 — Manila PHI

8.e5 — 8.6% (123 parties)

1966 — Antoshin, Vladimir S vs Schmid, Leo — 1-0 — Venice ITA
1968 — Tatai, Stefano vs Rossolimo, Nicolas — 1/2-1/2 — Malaga ESP
1969 — Britain, G. vs Coudari, Camille — 0-1 — North American Inter
1969 — Damjanovic, Mato vs Donner, Jan-Hein — 1/2-1/2 — Amsterdam NED
1969 — Volchok, Alexandr vs Sakhanovich, Yuri V — 1-0 — ?

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→c6, e7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Actif (mob. 4)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● d4-d5, ● e4-e5	● …c6-c5, ● …d6-d5, ● …e7-e6, ● …e7-e5

Partie
1962 Hastings6263 – Round 3 – Littlewood, John E – 0-1 – Alexander, Conol Hugh – G14 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be2 Nf6 5. Nf3 O-O 6. O-O c6 7. a4 Nbd7 8. b3 c5 9. Bb2 cxd4 10. Nxd4 Nc5
1964 Tel Aviv olm fin-A – Round 1 – Filip, Marius Liviu – 1/2-1/2 – Bednarski, Jacek – G5 1. d4 g6 2. e4 Bg7 3. Nc3 c6 4. Nf3 d6 5. Be2 Nf6 6. O-O O-O 7. a4 Nbd7 8. Re1 e5 9. a5 exd4 10. Nxd4 Re8
1965 Klasterec nad Orlici U18 6566 – Round 7 – Janata, Michael – 1/2-1/2 – Kubicek, Antonin – G18 1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. Nc3 Nf6 5. Be2 c6 6. O-O O-O 7. a4 Nbd7 8. h3 Qc7 9. Be3 e5 10. dxe5 dxe5
1966 Venice – Round 1 – Antoshin, Vladimir S – 1-0 – Schmid, Leo – G2 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Nf3 O-O 6. O-O c6 7. a4 Nbd7 8. e5 Nd5 9. Nxd5 cxd5 10. exd6 exd6
1968 Imperia Open – Round 1 – Janosevic, Dragoljub – 1-0 – Lohmann, Walter – G6 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. Re1 e5 9. Bf1 exd4 10. Nxd4 Nc5
1968 Malaga – Round 4 – Tatai, Stefano – 1/2-1/2 – Rossolimo, Nicolas – G14 1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Nf3 Nf6 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. e5 Nd5 9. Nxd5 cxd5 10. exd6 exd6
1969 IBM I – Round 4 – Damjanovic, Mato – 1/2-1/2 – Donner, Jan-Hein – G16 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. e5 dxe5 9. dxe5 Ne8 10. Bf4 Nc7
1969 URS Team Ch – Round ? – Taimanov, Mark E – 1/2-1/2 – Gipslis, Aivars – G20 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. Re1 e5 9. Bf1 a5 10. dxe5 dxe5
1975 URS Team Ch – Round 2 – Velibekov, A – 1/2-1/2 – Kirpichnikov, Vladimir – G381 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. Nf3 O-O 6. O-O c6 7. a4 Nbd7 8. Be3 e5 9. dxe5 dxe5 10. Nd2 Qe7
4. World Blitz 2008 – Round 11 – Tkachiev, Vladislav – 0-1 – Mamedyarov, Shakhriyar – G76 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. Re1 e5 9. Bf1 Qc7 10. a5 Re8
4. World Blitz 2008 – Round 5 – Rublevsky, Sergei – 0-1 – Mamedyarov, Shakhriyar – G33 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. e5 dxe5 9. dxe5 Nd5 10. Nxd5 cxd5
Dortmund 1996 – Round 6 – Leko, Peter – 0-1 – Shirov, Alexei – G23 1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6 5. a4 Nf6 6. Be2 O-O 7. O-O Nbd7 8. Bf4 Re8 9. Re1 Qc7 10. e5 Nh5
FIDE GP 2008 – Round 2 – Inarkiev, Ernesto – 1-0 – Mamedyarov, Shakhriyar – G13 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. h3 e5 9. Be3 exd4 10. Bxd4 Re8
Frankfurt-West Masters 1999 – Round 2 – Lutz, Christopher – 0-1 – Topalov, Veselin – G7 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. a5 Qc7 9. Be3 e5 10. dxe5 dxe5
Interpolis 1993 – Round 2 – Morozevich, Alexander – 1/2-1/2 – Van Wely, Loek – G103 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. b3 Qa5 9. Bb2 e5 10. Re1 Re8
Novgorod 1994 – Round 10 – Short, Nigel D – 1/2-1/2 – Shirov, Alexei – G31 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. Nc3 O-O 6. O-O c6 7. a4 Nbd7 8. Be3 Qc7 9. Qd2 b6 10. Bh6 Bb7
Novgorod 1994 – Round 10 – Short, Nigel D – 1/2-1/2 – Shirov, Alexei – G32 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. Nc3 O-O 6. O-O c6 7. a4 Nbd7 8. Be3 Qa5 9. Qd2 b6 10. Bh6 Bb7
Palma De Mallorca GP 2017 – Round 6.5 – Tomashevsky, Evgeny – 1-0 – Radjabov, Teimour – G50 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. a5 Qc7 9. Be3 e5 10. h3 exd4
Saint Louis Rapid 2019 – Round 6.4 – Yu, Yangyi – 1/2-1/2 – Carlsen, Magnus – G29 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. a5 Qc7 9. h3 e5 10. Be3 Re8
World Blitz 2021 – Round 11.39 – Cheparinov, Ivan – 0-1 – Yuffa, Daniil – G660 1. d4 d6 2. e4 g6 3. Nf3 Nf6 4. Nc3 Bg7 5. Be2 c6 6. a4 O-O 7. O-O Nbd7 8. b3 c5 9. Bb2 cxd4 10. Nxd4 a6

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