Structure de pions

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d5 (2v0), ● e5 (2v1), ● g5 (2v0)	● d4 (2v1)
Cases faibles	—	—
Centre	● d5 (2v0), ● e4 (1v0), ● e5 (2v1)	● d4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bb5	● Bb5 Actif (mob. 7)
Bg7		● Bg7 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn d7
Non développées	2 (● c1, ● a1)	4 (● g8, ● c8, ● a8, ● h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● f4-f5	● …d7-d5, ● …e7-e5, ● …f7-f5

B23y — Sicilian: Closed, Grand Prix, 3…g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bd3 (18 % des parties) ; Be2 (6 % des parties) ; e5 (Occuper le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nxb5 (Capture en b5 — 55 % des parties) ; ...a6 (Préparer expansion aile dame — 27 % des parties) ; ...e6 (Poussée — 16 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1964 WchT U26 11. fin-A – Round 6.1 – Zinn, Lothar – 1-0 – Pelts, Roman – G96 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O Nh6 7. d3 O-O 8. Bc4 Kh8 9. f5 gxf5 10. Bxh6 Bxh6
1964 WchT U26 11. fin-A – Round 9.4 – Rautenstrauch, Hans Hubert – 1/2-1/2 – Adamski, Jan – G161 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O a6 7. Be2 d6 8. a4 Nf6 9. d3 O-O 10. Bd2 e6
1965 Leipzig Inter-1 – Round 9 – Malich, Burkhard, Dr. – 0-1 – Pietzsch, Wolfgang – G21 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O Nh6 7. Nxd4 cxd4 8. Ne2 O-O 9. Bc4 e6 10. d3 d5
1965 Zinnowitz 02nd – Round 4 – Zinn, Lothar – 1/2-1/2 – Ghitescu, Theodor – G11 1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Nc3 Bg7 5. Bb5 Nd4 6. O-O e6 7. d3 Ne7 8. Nxd4 cxd4 9. Ne2 O-O 10. Ba4 d5
1966 La Habana olm prel – Round 2 – Piscitelli, Antoine – 0-1 – Kavalek, Lubomir – G58 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O Nxb5 7. Nxb5 d6 8. Nc3 Nf6 9. d3 O-O 10. Qe1 e6
1966 Rio Hondo zt – Round 16 – Acevedo Carmona, Juan Diego – 1/2-1/2 – Acosta Garcia, Rafael Isaac – G96 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O Nxb5 7. Nxb5 Nf6 8. d3 O-O 9. Qe1 d5 10. Nc3 e6
1966 Rio Hondo zt – Round 3 – Acevedo Carmona, Juan Diego – 1-0 – Panno, Oscar – G17 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O Nxb5 7. Nxb5 Nf6 8. d3 a6 9. Nc3 d6 10. Qe1 h6
34. ECC Open 2018 – Round 1.3 – Verkasalo, Tommi – 0-1 – Guseinov, Gadir – G17 1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 Nc6 5. Bb5 Nd4 6. O-O a6 7. Bd3 d6 8. Nxd4 cxd4 9. Ne2 Nf6 10. c3 dxc3
8. Norway Chess 2020 – Round 4.3 – Aditya Tari – 1/2-1/2 – Duda, Jacob – G12 1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 Nc6 5. Bb5 Nd4 6. O-O Nxb5 7. Nxb5 d6 8. d3 a6 9. Nc3 b5 10. Qe1 Bb7
Biel Interzonal 1993 – Round 10 – Moutousis, Konstantinos – 0-1 – Topalov, Veselin – G228 1. e4 c5 2. Nc3 g6 3. f4 Bg7 4. Nf3 Nc6 5. Bb5 Nd4 6. O-O e6 7. d3 Ne7 8. Nxd4 cxd4 9. Ne2 O-O 10. Ba4 d6
FIDE-Wch k.o. 1997 – Round 7.6 – Adams, Michael – 1/2-1/2 – Anand, Viswanathan – G187 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O a6 7. Bd3 d6 8. Nxd4 cxd4 9. Ne2 Nf6 10. Kh1 Nd7
World Blitz 2022 – Round 12.35 – Aditya Tari – 1-0 – Ansat, Aldiyar – G638 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O e6 7. e5 Ne7 8. Nxd4 cxd4 9. Ne4 O-O 10. a4 a6
World Blitz 2023 – Round 5.33 – Aditya Tari – 1/2-1/2 – Grebnev, Aleksey – G290 1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bb5 Nd4 6. O-O Nxb5 7. Nxb5 a6 8. Nc3 d6 9. Qe1 b5 10. d3 Bb7

B23y — Closed, Grand Prix (1964)

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O

Les coups candidats

6…Nxb5 — 53.8% (3159 parties)

Ambassadeurs : Koronowski, Heinz-Juergen (26x), Broadway, Dennis (21x), cstarx (16x), Szell, Lajos (14x), jmsfe (14x), Lappage, Jonathan C T (13x), littledevil (13x), anstk (13x)

6…a6 — 32.7% (1917 parties)

Ambassadeurs : Fritsche, Frank (25x), Oren, Itamar (15x), Renard, Stéphane (14x), Koronowski, Heinz-Juergen (13x), Zeidler, Sven P. (11x), Chaves, Joara (10x), Broadway, Dennis (10x), Dellenbach, Jean-Paul (10x)

6…e6 — 11.4% (669 parties)

Ambassadeurs : Szell, Lajos (6x), Van Liempt, Michael (4x), Plaskett, H James (3x), Charmeteau, Sven (3x), Jackson, Oliver A (3x), Lyell, Mark (3x), Turzo, Attila (3x), Bisguier, Arthur B (2x)

6…Nh6 — 1.5% (89 parties)

Ambassadeurs : Franklin, Samuel G A (6x), Snape, Ian L (5x), Greig, Steve (3x), Wojtaszek, Radoslaw (2x), Heberla, Bartlomiej (2x), Bugalski, Michal (2x), Cherniaev, Alexander (2x), Zinn, Lothar (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Nxb5	6…a6	6…e6	6…Nh6
<1800	457	51%	35%	11%	1%
1800-2200	3184	51%	35%	12%	2%
2200-2600	1614	53%	32%	12%	2%
2600+	11	45%	45%	9%	—

Évolution par décennie (% des parties)

Décennie	N parties	6…Nxb5	6…a6	6…e6	6…Nh6
1950s	1	100%	—	—	—
1960s	11	45%	27%	9%	18%
1970s	5	60%	40%	—	—
1980s	86	49%	36%	15%	—
1990s	350	55%	25%	19%	1%
2000s	1702	61%	24%	13%	1%
2010s	3046	53%	35%	10%	1%
2020s	668	39%	48%	10%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Nxb5	53%	39%	▼ -14.6%
6…a6	35%	48%	▲ +13.5%
6…e6	10%	10%	-0.5%
6…Nh6	1%	3%	▲ +1.8%

Joueurs célèbres

Champions du monde dans cette position

Hou, Yifan — 2 parties
Anand, Viswanathan — 1 partie
Gukesh D — 1 partie

Parties historiques

6…Nxb5 — 53.8% (3159 parties)

1959 — Korsakov, Boris vs Stein, Leonid — 1/2-1/2 — Kiev UKR
1960 — Partyka, Kazimierz vs Schmidt, Waldemar — 0-1 — Wroclaw Tch-POL
1965 — Jimeno, Angel vs Saenz Lopez, Jose Maria — 1-0 — Castilla
1966 — Piscitelli, Antoine vs Kavalek, Lubomir — 0-1 — Havana CUB
1966 — Carmona Rosales, Jose Luis vs Panno, Oscar — 1-0 — Rio Hondo zt

6…a6 — 32.7% (1917 parties)

1964 — Rautenstrauch, Hans Hubert vs Adamski, Jan — 1/2-1/2 — Krakow POL
1966 — Goncharoff, Nik vs Martinowsky, Dr Eugene — 1/2-1/2 — ?
1968 — Zinn, Lothar vs Estrin, Yakov — 1/2-1/2 — cr
1972 — Zinn, Lothar vs Izvozchikov, Alexander — 0-1 — Tbilisi GEO
1979 — Sulman, Robert vs Rind, Bruce — 1/2-1/2 — Marshall Int

6…e6 — 11.4% (669 parties)

1965 — Zinn, Lothar vs Ghitescu, Theodor — 1/2-1/2 — Zinnowitz GER
1980 — Bisguier, Arthur B vs Benko, Pal — 1/2-1/2 — Greenville ch-USA
1980 — Bisguier, Arthur B vs Benko, Francisco — 1-0 — USA
1984 — Short, Nigel D vs Giorgadze, Tamaz — 1/2-1/2 — Lvov UKR
1985 — Pavlovic, Milos vs Karolyi, Tibor — 0-1 — Kopenhagen open

6…Nh6 — 1.5% (89 parties)

1964 — Zinn, Lothar vs Pelts, Roman — 1-0 — Krakow POL
1965 — Malich, Burkhard, Dr. vs Pietzsch, Wolfgang — 0-1 — Leipzig GER
1993 — De Anna, Marcos vs Poch, Cesar G. — 0-1 — Vicente Lopez
1995 — Maier, Alexander vs Richter, Michael — 0-1 — Budapest HUN
2000 — Keith, Daniel vs Biasutto, Stefano — 1/2-1/2 — ICCF Email

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