D77l — Neo-Gruenfeld, 6.O-O dxc4 7.Na3 Nc6 8.Nxc4 Be6 9.b3 Bd5

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O dxc4 7.Na3 Nc6 8.Nxc4 Be6 9.b3 Bd5 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte d4, case forte f4, case forte e5, case forte g5, avant-poste c4(C), paire de fous, colonne c.
Faiblesses adverses : Bd5 mauvais fou, Bg7 enfermé.
Problèmes : Bc1 enfermé, Bg2 enfermé.
Plans :
● Bg5 — Clouer Nf6
● h3 — Empêcher ...Bg4
● Rc — Tour sur colonne c

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), case forte e4, case forte d5, Bd5 actif, paire de fous, colonne d.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : Bg7 enfermé.
Plans :
● ...Bg4 — Clouer Nf3
● ...e6 — Rupture
● ...e5 — Rupture
● ...Rd — Tour sur colonne d

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

D77l — Neo-Gruenfeld

1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O dxc4 7.Na3 Nc6 8.Nxc4 Be6 9.b3 Bd5

Eval: [+0.48]

Les coups candidats

10.Bb2 — 92.3% (712 parties)

Ambassadeurs : Banas, Jan (13x), Gheorghiu, Florin (11x), Unzicker, Wolfgang (5x), Panno, Oscar (4x), Gruen, Gerd-Peter (4x), Barcza, Gedeon (3x), Milev, Zdravko (3x), Clemens, Christian, Dr. (3x)

10.e3 — 6.2% (48 parties)

Ambassadeurs : Cosma, Elena-Luminita (3x), Cosma, Ioan (2x), Prohaszka, Peter (2x), Callergard, Robert (1x), Winge, Stefan (1x), Puc, Stojan (1x), Tarjan, James (1x), Kacirek, Petr (1x)

10.Ba3 — 1.2% (9 parties)

Ambassadeurs : Bolbochan, Julio (1x), Filip, Miroslav (1x), Bolbochan, J. (1x), Filip, Marius Liviu (1x), Mamedjarova, Zeinab (1x), Morchiashvili, Bachana (1x), Nikolic, Predrag (1x), Rowson, Jonathan (1x)

10.Ne3 — 0.3% (2 parties)

Ambassadeurs : Munos, Jean Marc Lucien Jose (2x), Lagunov, Evgenij (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Bb2	10.e3	10.Ba3	10.Ne3
<1800	7	86%	14%	—	—
1800-2200	105	90%	7%	1%	2%
2200-2600	560	92%	7%	1%	—
2600+	16	94%	6%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	10.Bb2	10.e3	10.Ba3	10.Ne3
1940s	2	100%	—	—	—
1950s	14	86%	—	14%	—
1960s	17	100%	—	—	—
1970s	52	98%	2%	—	—
1980s	39	97%	3%	—	—
1990s	119	95%	5%	—	—
2000s	256	91%	7%	2%	—
2010s	225	88%	9%	1%	1%
2020s	47	98%	2%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Bb2	88%	98%	▲ +9.4%
10.e3	9%	2%	▼ -7.2%
10.Ba3	1%	0%	▼ -1.3%
10.Ne3	1%	0%	▼ -0.9%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 1 partie

Parties historiques

10.Bb2 — 92.3% (712 parties)

1949 — Rellstab, Ludwig vs Heinicke, Herbert — 1-0 — Oldenburg GER
1949 — Mueller, Hans vs Sajtar, Jaroslav — 1/2-1/2 — CZE-AUT Prague CZE
1950 — Agustsson, Gudmundur vs Kinnmark, Olof — 1/2-1/2 — Reykjavik ISL
1951 — Nuernberg, Friedrich vs Heinicke, Herbert — 0-1 — Augsburg GER
1954 — Vaitonis, Povilas vs Milev, Zdravko — 1/2-1/2 — Amsterdam NED

10.e3 — 6.2% (48 parties)

1978 — Puc, Stojan vs Tarjan, James — 1-0 — Maribor
1988 — Callergard, Robert vs Winge, Stefan — 1-0 — Stockholm SWE
1997 — Kacirek, Petr vs Novotny, Jachym — 1/2-1/2 — CZE
1998 — Ionescu, Constantin vs Zagorskis, Darius — 1/2-1/2 — Elista RUS
1999 — Dokutchaev, Alexander F. vs Strukov, Robert — 1/2-1/2 — Novgorod RUS

10.Ba3 — 1.2% (9 parties)

1954 — Bolbochan, Julio vs Filip, Miroslav — 1/2-1/2 — Amsterdam NED
1954 — Bolbochan, J. vs Filip, Marius Liviu — 1/2-1/2 — Amsterdam NED
2000 — Nikolic, Predrag vs Rowson, Jonathan — 1-0 — Istanbul TUR
2002 — Mamedjarova, Zeinab vs Morchiashvili, Bachana — 0-1 — Batumi GEO
2005 — Bottoni, Carlo vs Elias, Rivas Fernando — 1/2-1/2 — ?

10.Ne3 — 0.3% (2 parties)

2019 — Munos, Jean Marc Lucien Jose vs Lagunov, Evgenij — 0-1 — Bucharest ROU
2019 — Munos, Jean Marc Lucien Jose vs Lagunov, Evgenij — 0-1 — Bucharest ROU

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1), ● f4 (2v0), ● e5 (3v1), ● g5 (2v0)	● e4 (2v0), ● d5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (3v1)	● d5 (2v0), ● e4 (2v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bg2	● Bg2 Enfermé (mob. 2)
Bd5		● Bd5 Actif (mob. 4)
Bg7		● Bg7 Enfermé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	2 (c1, a1)	1 (a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● e2-e3	● …e7-e6, ● …e7-e5

Partie
1949 CZE-AUT Prague CZE – Round 1 – Mueller, Hans – 1/2-1/2 – Sajtar, Jaroslav – G8 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1949 Oldenburg – Round 16 – Rellstab, Ludwig – 1-0 – Heinicke, Herbert – G64 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1951 Augsburg – Round 2 – Nuernberg, Friedrich – 0-1 – Heinicke, Herbert – G13 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Nf3 O-O 5. Bg2 d5 6. O-O dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1954 Amsterdam olm – Round 1 – Barcza, Gedeon – 1-0 – Panno, Oscar – G164 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. d4 Bg7 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1954 Amsterdam olm – Round 1 – Vaitonis, Povilas – 1/2-1/2 – Milev, Zdravko – G70 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1954 Olympiad prel II – Round 1 – Bolbochan, J. – 1/2-1/2 – Filip, Marius Liviu – G23 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d5 6. d4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Ba3 a5
1955 Gothenburg Interzonal – Round 3 – Ilivitsky, Georgy A – 1/2-1/2 – Szabo, Laszlo – G24 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. O-O dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1955 Moscow RUS – Round 13 – Simagin, Vladimir – 1-0 – Ghionzoli Soloviev, Leonardo – G9 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1958 Clare Benedict Cup 05th – Round 4 – Blau, Max – 0-1 – Schmid, Lothar – G30 1. Nf3 d5 2. g3 g6 3. d4 Bg7 4. Bg2 Nf6 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 Qc8
1958 Munich olm prel – Round 1 – Dunkelblum, Arthur – 0-1 – Blau, Max – G10 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. d4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1961 Mar del Plata – Round 8 – Filip, Marius Liviu – 1/2-1/2 – Najdorf, Miguel – G73 1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. g3 Bg7 5. Bg2 O-O 6. O-O Nc6 7. c4 dxc4 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 Qc8
1961 ROM Ch – Round 6 – Soos, Bela – 1/2-1/2 – Gheorghiu, Florin – G38 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 dxc4 6. Na3 O-O 7. O-O Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1963 FRG Ch 07th – Round 14 – Clemens, Christian, Dr. – 1/2-1/2 – Unzicker, Wolfgang – G29 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 Qc8
1963 Leningrad ch-URS – Round 1 – Spassky, Boris Vasily – 1/2-1/2 – Bronstein, David I – G64 1. d4 Nf6 2. Nf3 g6 3. g3 d5 4. Bg2 Bg7 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1964 Clare Benedict Cup 11th – Round 3 – Beni, Alfred – 1/2-1/2 – Unzicker, Wolfgang – G11 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 Qc8
1964 Magdeburg – Round 7 – Maedler, Juergen, Dr. – 1-0 – Stahl, Franz – G28 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. Nbd2 Nc6 7. c4 dxc4 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1964 Tel Aviv olm prel – Round 7 – Camarena, Joaquin – 1/2-1/2 – Beni, Alfred – G248 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 Qc8
1965 Belgrade – Round 11 – Flesch, János – 1/2-1/2 – Gheorghiu, Florin – G60 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1965 WchT U26 12. fin-A – Round 7 – Hort, Vlastimil – 1/2-1/2 – Gheorghiu, Florin – G41 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 dxc4 6. Na3 Nc6 7. Nxc4 O-O 8. b3 Be6 9. O-O Bd5 10. Bb2 a5
1969 Budapest – Round 1 – Barcza, Gedeon – 1/2-1/2 – Zaitsev, Alexander – G26 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. d4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1969 Monte Carlo – Round 1 – Hort, Vlastimil – 1/2-1/2 – Gheorghiu, Florin – G13 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1969 Moskou ch-URS – Round 1 – Zaitsev, Alexander – 0-1 – Kupreichik, Viktor D – G32 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
1969 Vrsac – Round 15 – Barcza, Gedeon – 1/2-1/2 – Byrne, Donald – G93 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. d4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 Qc8
1975 URS Team Ch – Round 1 – Slepoy, Yosef – 1/2-1/2 – Tseitlin, Mark D – G225 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5
Manila Interzonal 1976 – Round 3 – Panno, Oscar – 0-1 – Mecking, Henrique – G14 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d5 6. O-O dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5

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