B81s — Sicilian: Scheveningen, Keres, 6…Nc6 7.g5 Nd7 8.Be3

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 Nc6 7.g5 Nd7 8.Be3 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité aile_dame (3v2), case forte d4, case forte b5, paire de fous, colonne d.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bf1 enfermé, arriéré f2, 3 pièces non développées (F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Bd3 — Développer Bf1
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (2v1), case forte c5, case forte e5, avant-postes c5(C), e5(C), paire de fous, colonne c.
Faiblesses adverses : arriéré f2, Bf1 enfermé, Be3 mauvais fou, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 4 pièces non développées (C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● b6+Bb7 — PRIORITÉ: libérer le Bc8 (b6+Bb7, ...Bf5)
● ...Be7 — Développer Bf8
● ...d5 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B81s — Scheveningen Keres

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 Nc6 7.g5 Nd7 8.Be3

Eval: [+1.27]

Les coups candidats

8…Be7 — 65.0% (864 parties) →

Ambassadeurs : Cvitan, Ognjen (22x), Gabrielian, Artur (9x), Siekanski, Janusz (9x), Cramling, Dan (8x), Orsag, Milan (7x), Mainka, Romuald (7x), Volodin, Aleksandr (7x), Ciric, Dimitrije (6x)

8…a6 — 24.4% (324 parties)

Ambassadeurs : Bokros, Albert (9x), Brzozka, Stefan (5x), Milovic, Aleksandra (4x), Perez, Giorgio (3x), Blaskowski, Johannes (3x), Estrin, Yakov (2x), Simagin, Vladimir (2x), Dubinin, Peter (2x)

8…Nb6 — 7.4% (98 parties)

Ambassadeurs : Gross, Stefan (3x), Tal, Mikhail (3x), Neuman, Petr (3x), Navarovszky, Laszlo (2x), Krogius, Nikolai V (2x), Gruenfeld, Yehuda (2x), Modig, Benny (2x), Lukin, Andrei M (2x)

8…Nde5 — 2.0% (27 parties)

Ambassadeurs : Kapengut, Albert (3x), Dietze, Wolfgang, Dr. (3x), Vitolinsh, Alvis (1x), Razuvaev, Yuri S (1x), Gibbs, Peter Campbell (1x), Kieninger, Georg (1x), Kucera, Adam Thomas (1x), Madler (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…Be7	8…a6	8…Nb6	8…Nde5
<1800	19	58%	26%	11%	5%
1800-2200	257	63%	25%	7%	2%
2200-2600	670	67%	23%	8%	2%
2600+	7	57%	43%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8…Be7	8…a6	8…Nb6	8…Nde5
1930s	1	—	100%	—	—
1940s	1	—	100%	—	—
1950s	4	25%	25%	50%	—
1960s	51	43%	47%	4%	6%
1970s	64	36%	45%	8%	9%
1980s	187	68%	15%	14%	2%
1990s	516	74%	18%	6%	1%
2000s	287	63%	27%	7%	1%
2010s	189	57%	32%	6%	3%
2020s	29	59%	31%	7%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…Be7	57%	59%	▲ +1.5%
8…a6	32%	31%	▼ -1.2%
8…Nb6	6%	7%	▲ +1.1%
8…Nde5	3%	3%	▲ +0.8%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 3 parties
Kasparov, Garry — 2 parties
Karpov, Anatoly — 1 partie
Hou, Yifan — 1 partie

Parties historiques

8…Be7 — 65.0% (864 parties)

1950 — Lipnitsky, Isaac vs Kotlerman, S. — 1-0 — Kiev UKR
1960 — Alster, Ladislav vs Rejfir, Josef — 1-0 — Ostrava CZE
1964 — Fischer, Robert J vs Bruce G Dudley — 1-0 — Houston simultaan
1965 — Ivkov, Borislav vs Gligorić, Svetozar — 0-1 — Yugoslavia
1965 — ? vs Udovcic, Mijo — 1/2-1/2 — Zagreb CRO

8…a6 — 24.4% (324 parties)

1938 — Plater, Kazimierz vs Pope, John — 1-0 — Krakow Krakow POL
1947 — Kuppe, Wilhelm vs Herrmann, Hans, Dr. — 1/2-1/2 — Lueneburg GER
1952 — Ader Hausman, Walter vs Garcia Vera, Romeo — 1-0 — Mar del Plata ARG
1960 — Jansa, Vlastimil vs Kozma, Julius — 1-0 — Marianske Lazne
1960 — Tarasov, Vitaly vs Petrosian, Tigran V. — 0-1 — Moscow RUS

8…Nb6 — 7.4% (98 parties)

1958 — Krogius, Nikolai V vs Petrosian, Tigran V. — 1/2-1/2 — Riga LAT
1958 — Krogius, Nikolai V vs Petrosian, Tigran A. — 1/2-1/2 — Riga ch-URS
1968 — Mista, Ladislav vs Navarovszky, Laszlo — 1-0 — Reggio Emilia ITA
1969 — ? vs Navarovszky, Laszlo — 1-0 — Cacak
1970 — Byrne, Ray vs Grefe, John A — 1-0 — USA

8…Nde5 — 2.0% (27 parties)

1964 — Vitolinsh, Alvis vs Razuvaev, Yuri S — 1/2-1/2 — Moscow RUS
1964 — Gibbs, Peter Campbell vs Kieninger, Georg — 1/2-1/2 — Beverwijk NED
1967 — Kucera, Adam Thomas vs Madler — 1-0 — cr
1973 — Franzen, Jozef vs Aguayo Morales, Salvador Santiago — 1-0 — corr ol
1973 — Haag, Ervin vs Penrose, Jonathan — 1/2-1/2 — olm8 corr7384

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	● f2	—
Chaînes	—	● f7→e6
Passés	—	—
Majorité	● aile_dame 3v2	● centre 2v1

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1), ● b5 (3v0)	● c5 (2v0), ● e5 (3v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (2v1), ● e4 (1v0)	● e5 (3v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 7)
Be3	● Be3 Mauvais (mob. 3)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	3 (f1, a1, h1)	4 (c8, 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	semi-ouvert
Ruptures	● e4-e5, ● f2-f3	● …d6-d5, ● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
1938 Krakow Krakow POL – Round ? – Plater, Kazimierz – 1-0 – Pope, John – G9 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. h4 Be7 10. Qe2 Nxd4
1952 Mar del Plata – Round 5 – Ader Hausman, Walter – 1-0 – Garcia Vera, Romeo – G41 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Bg2 Be7 10. h4 Nb6
1958 Riga ch-URS – Round 13 – Krogius, Nikolai V – 1/2-1/2 – Petrosian, Tigran A. – G116 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 Nb6 9. Qd2 Ne5 10. O-O-O a6
1958 URS-ch25 – Round ? – Krogius, Nikolai V – 1/2-1/2 – Petrosian, Tigran V – G16 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 Nb6 9. Qd2 Ne5 10. O-O-O a6
1960 USSR – Round 1 – Tarasov, Adrian – 0-1 – Petrosian, Tigran A. – G10 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Bg2 Be7 10. f4 O-O
1964 Hoogovens-B – Round 10 – Gibbs, Peter Campbell – 1/2-1/2 – Kieninger, Georg – G35 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 Nde5 9. Be2 Nxd4 10. Qxd4 a6
1964 Moscow Ch – Round ? – Nikitin, Aleksander S – 0-1 – Estrin, Yakov – G53 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Bg2 Nde5 10. Nde2 Be7
1964 Moscow Ch – Round ? – Vasiukov, Evgeni – 1-0 – Simagin, Vladimir – G52 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Rg1 Nxd4 10. Qxd4 b5
1964 Moscow RUS – Round 11 – Estrin, Yakov – 1/2-1/2 – Simagin, Vladimir – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Rg1 Nxd4 10. Qxd4 b5
1964 URS-JUG – Round 1 – Kurajica, Bojan – 0-1 – Kuzmin, Gennadi P – G3 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Bg2 Qc7 10. O-O Be7
1964 Zinnowitz Zinnowitz GER – Round 8 – Maedler, Juergen, Dr. – 0-1 – Dely, Peter – G32 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Bg2 Qc7 10. O-O Nde5
1965 Rubinstein Memorial – Round 1 – Fuchs, Reinhart – 1/2-1/2 – Pietrusiak, Bogdan – G1 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. h4 Nxd4 10. Qxd4 b5
1965 Zagreb – Round 14 – Padevsky, Nikola – 0-1 – Petrosian, Tigran A. – G143 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Bg2 Be7 10. f4 O-O
1966 Den Haag zt – Round 1 – Mazzoni, Guido – 0-1 – Kavalek, Lubomir – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. f4 Nxd4 10. Qxd4 h6
1968 Buenos Aires – Round 2 – Rubinetti, Jorge – 0-1 – Panno, Oscar – G26 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Be2 Be7 10. h4 Qc7
1968 Corr – Round 1 – Dubinin, Peter – 1/2-1/2 – Pruess, Joachim – G16 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. h4 Be7 10. Qd2 Nxd4
1968 Lugano ol (Men) fin-A – Round 12 – Matulovic, Milan – 0-1 – Rubinetti, Jorge – G67 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Rg1 Qc7 10. h4 Na5
1969 Belgrade – Round 7 – Kurajica, Bojan – 0-1 – Ivkov, Borislav – G16 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. h4 Qc7 10. Bg2 Rb8
1969 Cacak – Round 1 – ? – 1-0 – Navarovszky, Laszlo – G4 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 Nb6 9. h4 d5 10. Bb5 Bd7
1969 FRG Ch Koenigsfeld GER – Round 10 – Klundt, Klaus – 1-0 – Kestler, Hans-Guenther – G27 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. f4 Qa5 10. Bc4 Nxd4
1969 Hastings6970 – Round 8 – Unzicker, Wolfgang – 1-0 – Acuna Medina, Angel G. – G37 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Qd2 Qa5 10. O-O-O Nxd4
1969 San Juan – Round 13 – Spassky, Boris V. – 1-0 – Colon Romero, Arturo – G85 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Qd2 Qc7 10. O-O-O b5
1971 Moscow – Round 11 – Karpov, Anatoly – 1-0 – Hort, Vlastimil – G123 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. f4 Be7 10. Rg1 Nxd4
1975 URS Team Ch – Round 3 – Kudriashov, Anatoli – 1/2-1/2 – Kapengut, Albert – G313 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 Nde5 9. Nb3 h6 10. gxh6 g5
Moscow 1971 – Round ? – Karpov, Anatoly – 1-0 – Hort, Vlastimil – G47 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. f4 Be7 10. Rg1 Nxd4
Olympiad 2002 – Round 7 – Ahmed, Esam Aly – 0-1 – Graf, Alexander – G236 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. Rg1 Qc7 10. h4 b5
Riga Interzonal 1979 – Round 10 – Van Riemsdijk, Herman C. – 1/2-1/2 – Tal, Mikhail – G26 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 Nb6 9. Qd2 d5 10. O-O-O Be7
Rio de Janeiro Interzonal 1979 – Round 15 – Kagan, Shimon – 0-1 – Petrosian, Tigran V – G47 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3 a6 9. h4 Be7 10. Rg1 Na5

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