Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● f7→g6, h7→g6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Bg7		● Bg7 Actif (mob. 6)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	4 (● c1, ● f1, ● a1, ● h1)	4 (● g8, ● c8, ● 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	—	● …d7-d5, ● …f7-f5

B34l — Sicilian: Accelerated Fianchetto, Modern, 6.Nb3

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Nb3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Be2 (Fou actif (mobilité 8), Développer f1 — 81 % des parties) ; g3 (Préparer le fianchetto — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Nf6 (Développer g8 — 73 % des parties) ; ...Bxc3+ (Fou actif (mobilité 9) — 12 % des parties) ; ...d6 (Libérer Bc8 — 12 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1925 Bratislava-A – Round 5 – Horak, Adam – 0-1 – Réti, Richard – G10 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nb3 Nf6 7. Be2 a6 8. O-O b5 9. a3 O-O 10. Bf4 Kh8
1937 Stockholm ol – Round 18 – Steiner, Endre – 1-0 – Vistaneckis, Isakas – G101 1. e4 c5 2. Nc3 Nc6 3. Nge2 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nb3 Nf6 7. Bg5 O-O 8. Qd2 Re8 9. Be2 d6 10. Rd1 Be6
1958 URS-ch25 – Round ? – Tolush, Alexander V – 0-1 – Gurgenidze, Bukhuti – G17 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nb3 Nf6 7. Be2 O-O 8. h4 a5 9. h5 a4 10. Nc5 Qa5
1960 Budapest zt – Round 14 – Clarke, Peter H – 1/2-1/2 – Ujtelky, Maximilian – G80 1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. Nc3 cxd4 5. Nxd4 Nc6 6. Nb3 d6 7. h4 h5 8. Be2 Nf6 9. Bg5 Bd7 10. Qd2 Rc8
1968 Palma de Mallorca – Round 13 – Westerinen, Heikki M.J. – 0-1 – Visier Segovia, Fernando – G118 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nb3 Nf6 7. Be2 d6 8. f4 a5 9. a4 Qb6 10. Bf3 O-O
1968 WchT U26 – Round 1 – Angantysson, Haukur – 0-1 – Kapengut, Albert – G32 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nb3 Nf6 7. Be2 O-O 8. O-O a5 9. a4 d6 10. Kh1 Be6
1969 Hoogovens – Round 10 – Kavalek, Lubomir – 1-0 – Langeweg, Kick – G79 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nb3 Nf6 7. g3 d6 8. h3 a5 9. a4 O-O 10. Bg2 Nb4
5. Zurich Opening Blitz 2016 – Round 4.3 – Nakamura, Hikaru – 1/2-1/2 – Shirov, Alexei – G12 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nb3 Nf6 7. Be2 a6 8. O-O b5 9. Re1 b4 10. Nd5 d6
Las Palmas 1977 – Round 1 – Karpov, Anatoly – 1-0 – Hernandez Onna, Roman – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nb3 Nf6 7. Be2 O-O 8. O-O a5 9. a4 d6 10. Bg5 Be6
World Blitz 2016 – Round 9.15 – Khusnutdinov, Rafael – 1/2-1/2 – Lu, Shanglei – G349 1. Nc3 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Bg7 6. Nb3 Nf6 7. Bc4 d6 8. O-O O-O 9. Re1 a6 10. Bf1 b5
World Blitz 2017 – Round 19.40 – Fedorchuk, Sergey A. – 1-0 – Guseinov, Gadir – G1002 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bg7 6. Nb3 Nf6 7. Be2 O-O 8. O-O a5 9. a4 Nb4 10. Re1 d6

B34l — Accelerated Fianchetto, Modern (1925)

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Nb3

Les coups candidats

6…Nf6 — 80.2% (2470 parties)

Ambassadeurs : Kupreichik, Viktor D (12x), Tischbierek, Raj (11x), Onyshchuk, Volodymyr (10x), Heinatz, Gundula, Dr. (8x), Reinderman, Dimitri (8x), Saltaev, Mihail (8x), Guseinov, Gadir (8x), Velimirovic, Dragoljub (7x)

6…d6 — 11.1% (342 parties)

Ambassadeurs : Felgaer, Ruben (4x), Hector, Jonny (3x), Hernandez Onna, Roman (2x), Zhelnin, Vladimir V (2x), Kunas, Heiko (2x), Veinger, Itzhak (2x), Partikas, Valentinas A (2x), Kurajica, Bojan (2x)

6…Bxc3+ — 6.6% (202 parties)

Ambassadeurs : Avedisian, Alexander (4x), Garcia Martinez, Silvino (3x), Kochyev, Alexander (3x), Ljubojevic, Ljubomir (2x), Gomez Baillo, Jorge H. (2x), Vogt, Lothar (2x), Passerotti, Pierluigi (2x), Correia, Sandra Ventura (2x)

6…a5 — 0.8% (25 parties)

Ambassadeurs : Wolf, Volker (1x), Stertenbrink, Guenter (1x), Grosar, Aljosa (1x), Novoselski, Zoran (1x), Koschinski, Willi, Dr. (1x), Korn, Juergen-Christof (1x), Asztalos, Viktor (1x), Eberth, Zoltan Bela (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Nf6	6…d6	6…Bxc3+	6…a5
<1800	166	76%	18%	3%	1%
1800-2200	1208	79%	12%	7%	1%
2200-2600	1427	83%	9%	7%	1%
2600+	29	72%	21%	7%	—

Évolution par décennie (% des parties)

Décennie	N parties	6…Nf6	6…d6	6…Bxc3+	6…a5
1950s	8	75%	25%	—	—
1960s	15	87%	13%	—	—
1970s	44	73%	18%	5%	2%
1980s	151	71%	10%	17%	1%
1990s	558	78%	10%	8%	1%
2000s	997	82%	11%	5%	1%
2010s	1052	80%	11%	7%	1%
2020s	255	85%	12%	2%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Nf6	80%	85%	▲ +4.3%
6…d6	11%	12%	▲ +0.8%
6…Bxc3+	7%	2%	▼ -4.9%
6…a5	1%	0%	-0.2%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 2 parties
Hou, Yifan — 2 parties
Kasparov, Garry — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

6…Nf6 — 80.2% (2470 parties)

1954 — Khenkin, A. vs Shofman, Mikhail — 0-1 — Moscow RUS
1954 — Khenkin, V vs Shofman, Mikhail — 0-1 — ?
1954 — Lutikov, Anatoly S vs Khenkin, Viktor — 1-0 — Riga LAT
1955 — Nan Shwe Yin Thun vs Vyslouzil, Antonin — 1/2-1/2 — Prague CZE
1958 — Alexander Tadala vs Gurgenidze, Bukhuti — 0-1 — Riga ch-URS

6…d6 — 11.1% (342 parties)

1958 — Sobel, Robert vs Vyslouzil, Antonin — 0-1 — Varna BUL
1959 — Tarjan, G. vs Fazekas, Stephan — 0-1 — British CCC
1960 — Clarke, Peter vs Ujtelky, Maximilian — 1/2-1/2 — Budapest HUN
1969 — Levitina, Irina vs Aroush Tagore — 1-0 — Beltsy
1973 — Hennings, Artur vs Brueggemann, Joachim — 1/2-1/2 — DDR-ch 22th Erfurt GER

6…Bxc3+ — 6.6% (202 parties)

1972 — Bokuchava, Alexander vs Rashkovsky, Nukhim N — 0-1 — Tbilisi GEO
1979 — Zipfel, Frank vs Blechschmidt, J. — 1-0 — corr DDR-cup6
1980 — Svenn, Matti vs Donaldson, John — 1/2-1/2 — Gausdal NOR
1980 — Korman, Ulf vs Rantanen, Yrjo A. — 1/2-1/2 — Skien
1983 — Bitman, Alexander R vs Grkov, Dimitar — 1-0 — Ruse

6…a5 — 0.8% (25 parties)

1978 — Wolf, Volker vs Stertenbrink, Guenter — 1-0 — NRW-Liga7879 Porz2-B
1989 — Grosar, Aljosa vs Novoselski, Zoran — 1/2-1/2 — Kladovo
1994 — Koschinski, Willi, Dr. vs Korn, Juergen-Christof — 1/2-1/2 — Oberliga Nord W9394
1995 — Lumondong, Lisa Karlina vs Nguyen, Thi Dung — 1-0 — Singapore Tchw-Asia
1997 — Asztalos, Viktor vs Eberth, Zoltan Bela — 1-0 — Sarospatak op