B97i - 8.Qd2 - Najdorf, Poisoned Pawn (1955)

B97i — Sicilian: Najdorf, Poisoned Pawn, 8.Qd2

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2   ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bBFou enfermé — mobilité 1
bK
bB
bR
bP
bP
bP
bP
bP
bQ
bP
bP
bN
wB
wN
wPPion central
wP
wN
wP
wPpawn en prise !
wP
wQ
wP
wP
wR
wK
wBFou actif — mobilité 5
wR
abcdefgh
Plans. Rb1 (81 % des parties) ; Nb3 (12 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wB
wK
wR
wP
wP
wQ
wP
wPpawn en prise !
wP
wN
wP
wP
wN
wB
Case forte (2v0)
bN
bP
bP
bQ
bP
bP
bP
bP
bP
bR
bB
bK
bBFou enfermé — mobilité 1
bN
bR
hgfedcba
Plans. ...Qxb2 (Capture en b2 — 93 % des parties) ; ...Nc6 (Développer b8 — 7 % des parties).
Avantages
Faiblesses
Diagonale active
Plans

Structure de pions
♔ Blancs ♚ Noirs
Pions doublés — —
Pions isolés — —
Arriérés — —
Chaînes — ● b7→a6, f7→e6
Passés — —
Majorité ● aile dame 3v2 —
Cases
♔ Blancs ♚ Noirs
Cases fortes — ● c5 (2v0)
Cases faibles — —
Centre — —
Colonnes et diagonales
♔ Blancs ♚ Noirs
Semi-ouvertes ● d ● c
Pièces
♔ Blancs ♚ Noirs
Bf1 ● Bf1 Non développé (mob. 5)
Bg5 ● Bg5 Ok (mob. 3)
Bc8 ● Bc8 Non développé (mob. 1)
Bf8 ● Bf8 Non développé (mob. 1)
Paire de fous ● Oui ● Oui
Non développées 3 (● f1, ● a1, ● h1) 5 (● b8, ● 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, ● f4-f5 ● …d6-d5, ● …e6-e5
└── B97i - 8…Qxb2 - Najdorf, Poisoned Pawn Accepted [+0.48] · 160 parties
├── B97m - 9.Rb1 - Najdorf, Poisoned Pawn [+0.48] · 134 parties
│ └── B97m - 9…Qa3 - Najdorf Variation, Poisoned Pawn Accepted (1957) [+0.35] · 134 parties (dont 3 ici)
│ ├── B97p - 10.e5 - Najdorf, Poisoned Pawn (1955) [-0.31] · 43 parties (dont 11 ici)
│ │ └── B97p - 10…dxe5 - Najdorf, Poisoned Pawn (1955) [+0.01] · 32 parties (dont 12 ici)
│ │ └── B97p - 11.fxe5 Nfd7 12.Bc4 - Najdorf, Poisoned Pawn (1957) [-1.06] · 20 parties (dont 12 ici)
│ │ └── B97p - 12…Bb4 - Najdorf, Poisoned Pawn (1965) [-0.66] · 8 parties
│ ├── B97q - 10.f5 - Najdorf, Poisoned Pawn (1965) [+0.39] · 43 parties (dont 6 ici)
│ │ └── B97q - 10…Nc6 - Najdorf, Poisoned Pawn (1962) [+0.35] · 37 parties (dont 1 ici)
│ │ └── B97r - 11.fxe6 fxe6 12.Nxc6 bxc6 - Najdorf, Poisoned Pawn, Main Line (1965) [+0.53] · 36 parties (dont 3 ici)
│ │ ├── B97t - 13.e5 - Najdorf, Poisoned Pawn, Main Line [-0.03] · 22 parties
│ │ │ ├── B97u - 13…dxe5 - Najdorf, Poisoned Pawn, Main Line (1979) [-0.11] · 17 parties (dont 1 ici)
│ │ │ │ └── B97u - 14.Bxf6 gxf6 15.Ne4 - Najdorf, Poisoned Pawn, Main Line [+0.00] · 16 parties
│ │ │ │ ├── B97w - 15…Be7 - Najdorf, Poisoned Pawn, Main Line (1963) [+0.11] · 13 parties (dont 5 ici)
│ │ │ │ │ ├── B97x - 16.Be2 h5 17.Rb3 Qa4 18.c4 - Najdorf, Poisoned Pawn, Main Line (1964) [-0.66] · 4 parties
│ │ │ │ │ └── B97y - 16.Be2 h5 17.Rb3 Qa4 18.Nxf6+ - Najdorf, Poisoned Pawn, Main Line (1980) [-0.60] · 4 parties
│ │ │ │ └── B97v - 15…Qxa2 - Najdorf, Poisoned Pawn, Main Line (1998) [+0.00] · 3 parties
│ │ │ └── B97t - 13…Nd5 - Najdorf, Poisoned Pawn, Main Line (1965) [+1.15] · 5 parties
│ │ └── B97s - 13.Be2 - Najdorf, Poisoned Pawn, Main Line, Timman’s 13.Be2 (1984) [+0.45] · 11 parties
│ ├── B97o - 10.Bxf6 - Najdorf, Poisoned Pawn (1957) [-0.32] · 39 parties (dont 5 ici)
│ │ ├── B97o - 10…gxf6 11.Be2 Bg7 - Najdorf, Poisoned Pawn (1962) [+0.15] · 17 parties
│ │ └── B97o - 10…gxf6 11.Be2 Nc6 - Najdorf, Poisoned Pawn (1961) [-0.34] · 17 parties
│ └── B97n - 10.Be2 - Najdorf, Poisoned Pawn (2021) [-0.52] · 6 parties (dont 1 ici)
│ └── B97n - 10…Be7 11.O-O - Najdorf, Poisoned Pawn (1983) [-0.57] · 5 parties (dont 2 ici)
│ └── B97n - 11…Nbd7 - Najdorf, Poisoned Pawn (1965) [-0.68] · 3 parties
└── B97j - 9.Nb3 - Najdorf, Poisoned Pawn (1967) [-0.11] · 26 parties (dont 2 ici)
├── B97k - 9…Qa3 - Najdorf, Poisoned Pawn (1967) [-0.23] · 16 parties (dont 4 ici)
│ └── B97l - 10.Bxf6 - Najdorf, Poisoned Pawn (1965) [-0.24] · 12 parties
└── B97j - 9…Nc6 - Najdorf, Poisoned Pawn (1954) [-0.02] · 8 parties

B97i — Najdorf, Poisoned Pawn (1955)
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2
Les coups candidats
Ambassadeurs : Bernal Varela, Nelson (102x), Simmelink, Joop Theo (83x), Milde, Lars (78x), Broniek, Mariusz Maciej (73x), Muller, Henri (63x), Gerhards, Guntis (61x), Daurelle, Herve (60x), Noble, Mark Frederick (60x)
8…Nc6 — 6.8% (990 parties)
Ambassadeurs : Loginov, Valery A (17x), Swiercz, Dariusz (11x), Ilincic, Zlatko (10x), Gutman, Lev (8x), Gruskovnjak, Tomislav (7x), Sutovsky, Emil (6x), Werle, Iozefina (6x), Nechepurenko, Roman V. (5x)
8…Nbd7 — 0.4% (53 parties)
Ambassadeurs : Rihtaric, Ivan (2x), Conrady, Alphonse (1x), Giustolisi, Alberto (1x), Narchi, Marcel (1x), Karp, Serge (1x), Grefe, John A (1x), Gilden, Lawrence (1x), Tiemann, Christoph (1x)
8…Be7 — 0.1% (17 parties)
Ambassadeurs : Schmidt, Osmar Raulino (2x), Czeremin, Claus (1x), Buhr, Carl Christian, Dr. (1x), Karlsson, Thorleifur (1x), Ulfarsson, Magnus Orn (1x), Musil, Vitezslav (1x), Macka, Martin (1x), Vasquez Schroder, Rodrigo Rafael (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Qxb2 8…Nc6 8…Nbd7 8…Be7
<1800 699 94% 6% 1% 0%
1800-2200 5730 92% 7% 0% 0%
2200-2600 5676 91% 8% 0% 0%
2600+ 151 87% 13% — —
Évolution par décennie (% des parties)
Décennie N parties 8…Qxb2 8…Nc6 8…Nbd7 8…Be7
1950s 34 82% 15% 3% —
1960s 268 99% 1% — —
1970s 443 99% 1% 0% —
1980s 885 99% 1% 0% —
1990s 1209 95% 5% 0% 0%
2000s 4150 88% 11% 0% 0%
2010s 6113 94% 6% 0% 0%
2020s 1488 94% 5% 0% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Qxb2 94% 94% +0.2%
8…Nc6 6% 5% ▼ -0.6%
8…Nbd7 0% 0% -0.0%
8…Be7 0% 0% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Tal, Mikhail — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 9 parties
Hou, Yifan — 4 parties
Carlsen, Magnus — 2 parties
Ju, Wenjun — 2 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie
Parties historiques
8…Qxb2 — 92.6% (13515 parties)
1954 — Nezhmetdinov, Rashid vs Salov, Vitaly V. — 1/2-1/2 — Riga LAT
1954 — Nezhmetdinov, Rashid vs Sherbakov, Vitaly — 1/2-1/2 — Riga LAT
1955 — Shianovsky, Vladislav I vs Galera Garriga, Jose Miguel — 1-0 — Kiev ch
1955 — Vasiukov, Evgeni vs Sherbakov, Vladimir — 0-1 — ?
1955 — Vasiukov, Evgeni vs Cherepkov, Alexander V — 0-1 — USSR
8…Nc6 — 6.8% (990 parties)
1955 — Keres, Paul vs Panno, Oscar — 1-0 — Goteborg izt
1955 — Domanski, Jerzy vs Gawlikowski, Stanislaw — 1-0 — Poland ch13
1955 — Alexander Tadala vs Aronson, Lev — 1-0 — Ch Leningrad
1956 — Neishtadt, Yakov vs Petrosian, Tigran V. — 0-1 — Moscow ch
1956 — Neishtadt, Yakov vs Petrosian, Tigran V. — 0-1 — Moscow-ch Moscow RUS
8…Nbd7 — 0.4% (53 parties)
1957 — Conrady, Alphonse vs Giustolisi, Alberto — 0-1 — Dublin zt
1973 — Grefe, John A vs Gilden, Lawrence — 1-0 — El Paso, TX USA
1980 — Tiemann, Christoph vs Hoehne, Bjoern — 1-0 — WT/M/195
1981 — Narchi, Marcel vs Karp, Serge — 1-0 — Graz WTch jr
1981 — Rej, Dennis vs Schandorff, Lars — 1-0 — Haderslev
8…Be7 — 0.1% (17 parties)
1992 — Karlsson, Thorleifur vs Ulfarsson, Magnus Orn — 1/2-1/2 — Skovde
1993 — Czeremin, Claus vs Buhr, Carl Christian, Dr. — 1-0 — Hamburg GER
1995 — Musil, Vitezslav vs Macka, Martin — 0-1 — cr.
2004 — Vasquez Schroder, Rodrigo Rafael vs Rasmussen, Robert — 1-0 — Dos Hermanas ESP
2004 — Kladiva, Imre vs Bajnoczi, Peter — 0-1 — HUN