Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● e6→f5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (3v0), ● b5 (2v1), ● g5 (2v0)	● g4 (2v0)
Cases faibles	● e4	—
Centre	● d4 (1v0), ● d5 (3v2)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Actif (mob. 6)
Be7		● Be7 Ok (mob. 1)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● c4-c5, ● d4-d5, ● e2-e4	● …c7-c5, ● …d6-d5, ● …e6-e5, ● …f5-f4

A91q — Dutch: 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nh3 O-O 6.O-O d6 7.Nc3 Qe8

1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nh3 O-O 6.O-O d6 7.Nc3 Qe8 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Nf4 (Cavalier actif en f4 — 44 % des parties) ; e4 (Occuper le centre — 21 % des parties) ; b3 (Préparer le fianchetto — 10 % des parties) ; Qb3 (Contrôle diagonale b3-g8 — 7 % des parties) ; Qc2 (5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...c6 (Renforcer le centre — 27 % des parties) ; ...e5 (Occuper le centre — 19 % des parties) ; ...g5 (Attaque à l'aile roi — 8 % des parties) ; ...Bd8 (7 % des parties) ; ...Nc6 (Développer b8 — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1935 Buenos Aires – Round 1 – Grau, Roberto G – 0-1 – Cristia, Jose Maria – G1 1. c4 f5 2. Nc3 Nf6 3. d4 e6 4. g3 Be7 5. Bg2 O-O 6. Nh3 d6 7. O-O Qe8 8. Nf4 Bd8 9. e4 e5 10. dxe5 dxe5
1939 Buenos Aires – Round 1 – Petrov, Vladimir (ENG) – 1-0 – Tartakower, Savielly – G6 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 Be7 5. c4 O-O 6. Nc3 d6 7. O-O Qe8 8. Qb3 Nc6 9. d5 exd5 10. cxd5 Ne5
1939 Buenos Aires ol f-A – Round 12 – Petrov, Vladimir S. – 1-0 – Tartakower, Savielly – G227 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 Be7 5. c4 O-O 6. Nc3 d6 7. O-O Qe8 8. Qb3 Nc6 9. d5 exd5 10. cxd5 Ne5
1947 BRA Ch – Round 6 – De Souza Mendes, Joao – 1-0 – Ribas Hector – G10 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Nf4 Nc6 9. Nb5 Bd8 10. d5 exd5
1948 Venice – Round 1 – Szabados, Eugenio – 1/2-1/2 – Tartakower, Savielly – G17 1. d4 f5 2. g3 e6 3. Bg2 Nf6 4. Nh3 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. e4 fxe4 9. Nxe4 Nc6 10. d5 exd5
1949 URS Ch, semi final – Round 1 – Poliak, Abram – 1/2-1/2 – Kan, Ilya A – G25 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. c4 Be7 5. Nh3 O-O 6. O-O d6 7. Nc3 Qe8 8. Nf4 Bd8 9. Nd3 e5 10. d5 Nbd7
1951 GDR Ch – Round 17 – Stein, Georg – 1/2-1/2 – Kuebart, Erich – G21 1. d4 e6 2. g3 f5 3. Bg2 Nf6 4. Nh3 Be7 5. O-O O-O 6. c4 Qe8 7. Nc3 d6 8. Qc2 Nc6 9. d5 Ne5 10. dxe6 Bxe6
1957 DDR Ch 08th – Round 10 – Eising, Johannes – 1-0 – Franz, Joachim – G65 1. c4 f5 2. Nc3 Nf6 3. g3 d6 4. d4 e6 5. Bg2 Be7 6. Nh3 O-O 7. O-O Qe8 8. Nf4 e5 9. dxe5 dxe5 10. Nfd5 Bd8
1959 Buenos Aires JM – Round 11 – Steinbaum, Fernando – 0-1 – Palermo, Vicente – G41 1. c4 f5 2. g3 Nf6 3. Bg2 e6 4. d4 Be7 5. Nc3 O-O 6. Nh3 d6 7. O-O Qe8 8. Nf4 c6 9. e4 fxe4 10. Nxe4 Nxe4
1962 Match – Round 1 – Mack Lee, Aizyleen – 0-1 – Glicker, J. – G8 1. d4 f5 2. c4 e6 3. Nc3 Nf6 4. g3 Be7 5. Bg2 O-O 6. Nh3 d6 7. O-O Qe8 8. Qc2 Nc6 9. d5 Nd8 10. dxe6 Nxe6
1963 CSR Ch sf – Round 2.7 – Pribyl, Josef – 0-1 – Skokan, Zdenek – G10 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nc3 O-O 6. Nh3 d6 7. O-O Qe8 8. Nf4 c6 9. e4 fxe4 10. Nxe4 Nxe4
Linares 1992 – Round 5 – Karpov, Anatoly – 1-0 – Short, Nigel D – G19 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nh3 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. Nf4 g5 9. Nd3 Qg6 10. f4 h6

A91q — Dutch (1935)

1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nh3 O-O 6.O-O d6 7.Nc3 Qe8

Les coups candidats

8.Nf4 — 43.8% (78 parties)

Ambassadeurs : Caponi, Saverio (2x), Hammond, N. (1x), Lloyd, DE. (1x), Fernandes, Stefany Lopes (1x), Palermo, Vicente (1x), Pribyl, Josef (1x), Skokan, Zdenek (1x), Dimitrov, Krastjo (1x)

8.e4 — 21.3% (38 parties)

Ambassadeurs : Naumkin, Igor (2x), Arnold, Robert G (2x), Honan, Neill Thomas (1x), Barker, Malcolm Neil (1x), Mostafavi, Mohammadreza (1x), Reilly, Brian (1x), Shilinsh, Georgs (1x), Tal, Mikhail (1x)

8.b3 — 10.1% (18 parties)

Ambassadeurs : Baeriswyl Rada, Fernando Luis (1x), Brent, Richard P (1x), Dornieden, Manfred, Dr. (1x), Heger, Robert (1x), Horta, Hector (1x), Hagelin, Roger Gunnar (1x), Naugle, K. (1x), Levanic, Anej (1x)

8.Qb3 — 6.7% (12 parties)

Ambassadeurs : Gregor, Jiri (1x), Kunc, Miroslav (1x), Blow, Ronald (1x), Glazier, L (1x), Mehlhorn, Uwe (1x), Mueller, Thomas (1x), Turicnik, Vladimir (1x), Arnold, Robert G (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Nf4	8.e4	8.b3	8.Qb3
<1800	10	20%	50%	10%	—
1800-2200	63	44%	16%	6%	14%
2200-2600	51	37%	31%	10%	6%
2600+	1	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8.Nf4	8.e4	8.b3	8.Qb3
1950s	10	40%	30%	—	—
1960s	5	40%	—	20%	—
1970s	5	60%	—	20%	—
1980s	16	44%	12%	—	12%
1990s	55	45%	25%	18%	2%
2000s	49	51%	22%	8%	8%
2010s	31	35%	23%	6%	10%
2020s	7	14%	14%	—	29%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Nf4	35%	14%	▼ -21.2%
8.e4	23%	14%	▼ -8.3%
8.b3	6%	0%	▼ -6.5%
8.Qb3	10%	29%	▲ +18.9%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 1 partie
Karpov, Anatoly — 1 partie

Parties historiques

8.Nf4 — 43.8% (78 parties)

1955 — Drakert, William vs Elliott, Henry J — 1/2-1/2 — New York, NY USA
1957 — Eising, Johannes vs Franz, Joachim — 1-0 — Soemmerda
1959 — Hammond, N. vs Lloyd, DE. — 1-0 — Bognor Regis
1959 — Fernandes, Stefany Lopes vs Palermo, Vicente — 0-1 — Buenos Aires ARG
1960 — Dimitrov, Krastjo vs Fraidakis, Pantelis — 1/2-1/2 — Sofia ch BUL

8.e4 — 21.3% (38 parties)

1951 — Honan, Neill Thomas vs Barker, Malcolm Neil — 0-1 — Birmingham ENG
1953 — Shilinsh, Georgs vs Tal, Mikhail — 1/2-1/2 — Riga LAT
1956 — Mostafavi, Mohammadreza vs Reilly, Brian — 1-0 — Moscow RUS
1987 — Radzikowski, Marek vs Nichols, Sam — 1-0 — Vancouver BC CAN
1989 — McNab, Colin A vs Martin Del Campo Cardenas, Roberto Abel — 0-1 — Edinburgh SCO

8.b3 — 10.1% (18 parties)

1965 — Baeriswyl Rada, Fernando Luis vs Brent, Richard P — 1-0 — Wch U20 f-C Barcelona ESP
1978 — Dornieden, Manfred, Dr. vs Heger, Robert — 1-0 — Germany North
1990 — Drolet, Stephane vs Barbeau, Sylvain — 0-1 — Quebec Open
1991 — Eade, Jim vs Lutes, John W — 1-0 — corr NTC
1992 — Naugle, K. vs Levanic, Anej — 0-1 — Charlotte Tch

8.Qb3 — 6.7% (12 parties)

1982 — Blow, Ronald vs Glazier, L — 0-1 — Luzern olm
1986 — Gregor, Jiri vs Kunc, Miroslav — 0-1 — Karvina
1997 — Mehlhorn, Uwe vs Mueller, Thomas — 1-0 — Augsburg GER
2006 — Turicnik, Vladimir vs Arnold, Robert G — 0-1 — ICCF
2006 — Impellizzeri, Francesco vs Biava, Pierluigi — 1-0 — Bergamo