B92b — Sicilian: Najdorf, 6.Be2 Nbd7

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Nbd7 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. O-O (Mettre le roi en sécurité, connecter les tours — 42 % des parties) ; Be3 (Fou actif (mobilité 5), Développer c1 — 26 % des parties) ; f4 (Attaque à l'aile roi — 20 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...g6 (Préparer le fianchetto — 35 % des parties) ; ...e6 (Solidifier le centre, libérer le fou — 26 % des parties) ; ...Nc5 (Cavalier actif en c5 — 15 % des parties) ; ...b5 (Expansion aile dame — 10 % des parties) ; ...e5 (Occuper le centre — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6, e7→d6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v1), ● f5 (2v0)	● c5 (2v0), ● e5 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0), ● d5 (2v1)	● e5 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Be2	● Be2 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● 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	mobile
Ruptures	● e4-e5	● …d6-d5

Partie
1946 Pittsburgh Open – Round 1 – Yerhoff, Frank – 0-1 – Kupchik, Abraham – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O Nc5 8. Bf3 e6 9. Be3 Be7 10. Nde2 Qc7
1962 Moscow – Round 1 – Aronin, Lev – 1/2-1/2 – Simagin, Vladimir – G37 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. g4 h6 8. f4 e5 9. Nf5 Nc5 10. Bf3 g6
1962 Moscow – Round 1 – Bykhovsky, Anatoly A – 1/2-1/2 – Simagin, Vladimir – G33 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. a4 g6 8. O-O Bg7 9. Bg5 O-O 10. Re1 Re8
1963 Spartak CC – Round ? – Zhukhovitsky, Samuel – 1-0 – Polugaevsky, Lev – G18 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. Be3 Bg7 9. Qd2 O-O 10. Kh1 Qc7
1964 Moscow RUS – Round 11 – Liberzon, Vladimir M – 0-1 – Polugaevsky, Lev – G28 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. Bg5 e6 8. Bh5 Nb6 9. O-O Be7 10. f4 Nc4
1964 Tel Aviv olm – Round 1 – Zuidema, Coen – 1/2-1/2 – Bilek, Istvan – G73 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nbd7 6. Be2 a6 7. Nb3 e6 8. O-O Be7 9. a4 b6 10. Be3 Bb7
1967 URS-ch35 – Round 1 – Korensky, Valeri S – 0-1 – Polugaevsky, Lev – G56 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. f4 Bg7 9. Be3 O-O 10. Kh1 Qc7
1967 Zierikzee ch-NED – Round 7 – Zuidema, Coen – 0-1 – Cuijpers, Frans Andre – G36 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. Nb3 e6 8. f4 b5 9. Bf3 Bb7 10. Qe2 Be7
1968 Alma Ata ch-URS – Round 16 – Cseshkovsky, Vitaly – 1/2-1/2 – Polugaevsky, Lev – G140 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. Be3 g6 8. Qd2 b5 9. a4 bxa4 10. f3 Bg7
1968 Alma Ata ch-URS – Round 6 – Cseshkovsky, Vitaly – 1-0 – Liberzon, Vladimir M – G64 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. Be3 Nc5 8. f3 e6 9. Qd2 b5 10. a3 Bb7
1968 Lugano ol (Men) qual-G – Round 1 – De la Casa Angel – 0-1 – Tringov, Georgi P – G7 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. Be3 Bg7 9. Nb3 O-O 10. f4 b5
1968 Vinkovci – Round 13 – Matanovic, Aleksandar – 1/2-1/2 – ? – G73 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. Be3 Bg7 9. a4 1/2-1/2
1969 Raach zt – Round 19 – Matanovic, Aleksandar – 1-0 – Jakobsen, Ole – G156 1. e4 c5 2. Nc3 d6 3. Nf3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Be2 Nbd7 7. O-O g6 8. a4 Bg7 9. f4 O-O 10. Kh1 Qc7
1969 Tallinn it – Round 4 – Arulaid, Alexander – 1-0 – Szabo, Laszlo – G17 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. Be3 Bg7 9. Qd2 Nc5 10. f3 O-O
1969 Vidmar Memorial – Round 1 – Robatsch, Karl – 1/2-1/2 – Tringov, Georgi P – G5 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. Be3 Bg7 9. Qd2 O-O 10. Bh6 Bxh6
1969 YUG Ch 24th – Round 4 – Ostojic, Predrag – 0-1 – ? – G12 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. a4 b6 9. f4 Bb7 10. Bf3 e5
1974 Manila – Round 8 – Vasiukov, Evgeni – 1/2-1/2 – Quinteros, Miguel Angel – G76 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. g4 d5 8. exd5 Nb6 9. Bf3 Nfxd5 10. Nxd5 Nxd5
FIDE WCh KO 2000 – Round 2.1 – Nisipeanu, Liviu-Dieter – 1/2-1/2 – Georgiev, Kiril – G55 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. Be3 e6 8. f4 b5 9. Bf3 Bb7 10. e5 Bxf3
World Blitz 2021 – Round 15.13 – Korobov, Anton – 1/2-1/2 – Muradli, Mahammad – G866 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. a4 b6 8. Be3 Bb7 9. f3 e6 10. O-O Be7
XIX Ciudad 2006 – Round 2.4 – Anand, Viswanathan – 1/2-1/2 – Topalov, Veselin – G16 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 Nbd7 7. O-O g6 8. Be3 b6 9. Nd5 Bb7 10. c4 e5

B92b — Najdorf (1946)

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Nbd7

Les coups candidats

7.O-O — 42.3% (445 parties)

Ambassadeurs : Balazec, Ludovit (6x), ? (5x), Bodnaruk, Anastasia (5x), Gordievsky, Dmitry (4x), Silva, Henrique Brasil Barrientos (4x), Polugaevsky, Lev (3x), Tringov, Georgi P (3x), Nunn, John D M (3x)

7.Be3 — 25.7% (270 parties)

Ambassadeurs : Quinteros, Miguel A. (9x), Almarza Mato, Carlos (4x), Ljubojevic, Ljubomir (3x), Morovic Fernandez, Ivan (3x), Alsayed, Mohammed (3x), Chestnov, Vitaliy A. (2x), Matanovic, Aleksandar (2x), Liberzon, Vladimir M (2x)

7.f4 — 19.7% (207 parties) →

Ambassadeurs : Klovans, Janis (4x), Polugaevsky, Lev (4x), Bogdanovic, Rajko (4x), Nunn, John D M (4x), Quinteros, Miguel A. (4x), Tringov, Georgi P (4x), Bykhovsky, Anatoly A (3x), Liberzon, Vladimir M (3x)

7.a4 — 4.9% (52 parties)

Ambassadeurs : Ruck, Robert (2x), Seslija, Dragan (1x), Ligterink, Gert (1x), Bykhovsky, Anatoly A (1x), Simagin, Vladimir (1x), Huguet, Bernard (1x), Tatai, Stefano (1x), Hardicsay, Peter (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	7.O-O	7.Be3	7.f4	7.a4
<1800	51	35%	37%	8%	6%
1800-2200	316	45%	30%	16%	3%
2200-2600	457	42%	23%	23%	6%
2600+	18	39%	17%	28%	11%

Évolution par décennie (% des parties)

Décennie	N parties	7.O-O	7.Be3	7.f4	7.a4
1950s	2	50%	—	50%	—
1960s	51	35%	10%	39%	4%
1970s	104	25%	29%	37%	6%
1980s	60	47%	15%	25%	7%
1990s	148	26%	32%	24%	6%
2000s	241	50%	20%	18%	5%
2010s	403	49%	28%	12%	4%
2020s	42	33%	38%	14%	7%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
7.O-O	49%	33%	▼ -16.0%
7.Be3	28%	38%	▲ +9.8%
7.f4	12%	14%	▲ +2.4%
7.a4	4%	7%	▲ +2.9%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 3 parties
Karpov, Anatoly — 3 parties
Anand, Viswanathan — 2 parties
Gukesh D — 1 partie

Parties historiques

7.O-O — 42.3% (445 parties)

1957 — Marciniak, Alexandre vs Matkowski, Wiktor — 0-1 — Poland
1960 — Elemberg, Norberto vs Casteran, E. — 1-0 — ?
1963 — Zhukhovitsky, Samuel vs Polugaevsky, Lev — 1-0 — Soviet Union
1964 — B Milton vs Simagin, Konstantin — 0-1 — corr USSR
1965 — Lehmann, Heinz vs Fischer, Robert J — 0-1 — Havana CUB

7.Be3 — 25.7% (270 parties)

1962 — Matanovic, Aleksandar vs Stein Septiano Malewa Kleden — 1-0 — Lvov UKR
1963 — Lein, Anatoly vs Balitinov, Magomed Amaevich — 0-1 — Russia
1968 — Chestnov, Vitaliy A. vs Polugaevsky, Lev — 1/2-1/2 — Ch URS, Alma-Ata
1968 — Chestnov, Vitaliy A. vs Liberzon, Vladimir M — 1-0 — Ch URS, Alma-Ata
1969 — Bykhovsky, Anatoly A vs Yudovich, Mikhail Jr — 1-0 — Olympiad Moscow (trade unions

7.f4 — 19.7% (207 parties)

1959 — Gyving, Robert vs OBrien, Erik Michael — 0-1 — Santa Rosa Chess Club
1963 — Bykhovsky, Anatoly A vs Lepeshkin, Vladimir — 1-0 — Moscow RUS
1964 — Siveri, Armando vs Bak, Istvan — 0-1 — Reggio Emilia ITA
1964 — Holzmann, Licurgo vs Mello, Jose Benicio — 1-0 — Brasilia BRA
1964 — Klovans, Janis vs Polugaevsky, Lev — 1/2-1/2 — Moscow RUS

7.a4 — 4.9% (52 parties)

1962 — Bykhovsky, Anatoly A vs Simagin, Vladimir — 1/2-1/2 — Moscow RUS
1967 — Seslija, Dragan vs Ligterink, Gert — 1-0 — Groningen NED
1972 — Huguet, Bernard vs Tatai, Stefano — 1/2-1/2 — Las Palmas ESP
1973 — Pilnik, Herman vs Rubinetti, Jorge — 1/2-1/2 — Buenos Aires ARG
1974 — Nestler, Vincenzo vs Albano, Marco — 0-1 — Milan ITA

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