A56s — Benoni: Czech, 5.e4 Be7 6.g3

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.g3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Exploiter la case forte b5.

Atouts. Les Blancs s'appuient sur la case forte b5 et la paire de fous.

Côté adverse. Les fous enfermés en e7 et c8 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier g1, les fous c1 et f1 et les tours a1 et h1).

Plans. Nf3 (Développer Ng1) ; Bg5 (Clouer Nf6) ; Bd3 (Développer Bf1).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Exploiter la case forte d4….

Atouts. Les Noirs s'appuient sur les cases fortes d4 et g4 et la paire de fous.

Côté adverse. Les fous enfermés en c1 et f1 et le roi resté au centre.

En contrepartie. Le roi n'est pas encore à l'abri et plusieurs pièces dorment encore (le cavalier b8, le fou c8 et les tours a8 et h8).

Plans. O-O (Mettre le roi en sécurité, connecter les tours) ; ...Nbd7 (Développer Nb8).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3, c4→d5, e4→d5	● d6→c5, d6→e5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	● d4 (2v1), ● g4 (2v1)
Cases faibles	—	● d5
Centre	● d5 (4v1)	● d4 (2v1), ● e5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 4)
Be7		● Be7 Enfermé (mob. 1)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	5 (● g1, ● c1, ● f1, ● a1, ● h1)	4 (● b8, ● 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	fermé
Ruptures	● f2-f3	—

Partie
1939 SCO-ch52/ – Round 5 – Winter, William – 1-0 – Gilchrist, Jeff – G9 1. d4 Nf6 2. c4 c5 3. d5 d6 4. g3 e5 5. Bg2 Be7 6. Nc3 O-O 7. e4 Na6 8. Nge2 Nc7 9. O-O Nd7 10. f4 f6
1940 URS-ch12 – Round ? – Petrov, Vladimir S. – 1/2-1/2 – Panov, Vasily – G15 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. g3 Be7 6. Bg2 O-O 7. e4 a6 8. Nge2 Ne8 9. O-O Nd7 10. Qc2 Rb8
1946 Moscow Ch – Round 1 – Solntsev, Yury – 1/2-1/2 – Panov, Vasily – G9 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 Nbd7 7. Bg2 Nf8 8. Qd3 Ng6 9. h4 O-O 10. h5 Nh8
1952 Rio de Janeiro – Round 13 – Cruz, Walter – 0-1 – Engels, Ludwig – G72 1. d4 c5 2. d5 e5 3. c4 d6 4. e4 Nf6 5. Nc3 Be7 6. g3 O-O 7. Bg2 Nbd7 8. Nge2 a6 9. O-O Rb8 10. Qd3 Ne8
1957 Leningrad – Round 6 – Korchnoi, Viktor – 1-0 – Udovcic, Mijo – G45 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 a6 8. a4 Ne8 9. Nge2 Nd7 10. O-O Rb8
1963 Club Argentino – Round 6 – Panno, Oscar – 1-0 – Garcia Rodriguez, Raimundo – G28 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bh3 Nbd7 8. a4 Ne8 9. Nf3 Nc7 10. Qe2 Na6
1964 Budapest Ch – Round 1 – Liptay, Laszlo Dr. – 0-1 – Szilagyi, Peter – G13 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Na6 8. Nh3 Bg4 9. f3 Bd7 10. O-O Qc8
1964 Budapest Ch – Round 1 – Liptay, Laszlo Dr. – 1/2-1/2 – Gasztonyi, Endre – G14 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 a6 8. a4 Ne8 9. Nh3 b6 10. O-O Bd7
1966 Bucharest Bucharest ROM – Round 13 – Kavalek, Lubomir – 1-0 – Partos, Charles – G36 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bh3 a6 8. Bxc8 Qxc8 9. a4 Nbd7 10. f3 Ne8
1966 Budapest Ch – Round 11 – Kluger, Gyula – 1-0 – Kurtesch Laszlo – G14 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Na6 8. f4 exf4 9. gxf4 Ng4 10. Nf3 Bh4+
1966 CSR Ch Int – Round 14 – Pachman, Ludek – 1-0 – Jansa, Vlastimil – G19 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 b5 7. cxb5 O-O 8. Bh3 a6 9. Bxc8 Qxc8 10. bxa6 Nxa6
1966 Den Haag zt – Round 7 – Donner, Jan-Hein – 1-0 – Kavalek, Lubomir – G38 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. h4 Nbd7 8. Bh3 b5 9. cxb5 a6 10. bxa6 c4
1966 Rubinstein Memorial 04th – Round 3 – Lengyel, Laszlo – 1/2-1/2 – Doda, Zbigniew – G17 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 b5 7. cxb5 O-O 8. Nf3 a6 9. bxa6 Ne8 10. h4 Nxa6
1966 Sochi Chigorin Memorial 04th – Round 10 – Krogius, Nikolai V – 1/2-1/2 – Polugaevsky, Lev – G40 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bh3 Bxh3 8. Nxh3 Qc8 9. Ng5 h6 10. Nf3 Nh7
1966 Sochi Chigorin Memorial 04th – Round 13 – Vladimirov, Boris T – 1-0 – Sergievsky, Vladimir D – G51 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 Na6 7. Bh3 Nc7 8. Bxc8 Qxc8 9. Nf3 Qd7 10. Qe2 a6
1967 EU Ch U18 f-A 6768 – Round 5 – Ligterink, Gert – 0-1 – Levy, David N L – G9 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Na6 8. Nge2 Nc7 9. a4 b6 10. O-O Rb8
1967 Sarajevo – Round 15 – Benko, Pal – 1-0 – Janosevic, Dragoljub – G82 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 a6 8. a4 Nbd7 9. Nge2 Ne8 10. O-O Rb8
1967 Skopje – Round 13 – Bukic, Enver – 1-0 – Janosevic, Dragoljub – G100 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 a6 8. Nge2 Nbd7 9. O-O Rb8 10. a4 Ne8
1968 Athens – Round 1 – Hort, Vlastimil – 1-0 – Ciocaltea, Victor – G3 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Nbd7 8. Nf3 a6 9. a4 Ne8 10. O-O g6
1968 Belgrade (Women) 4th – Round 8 – Kushnir, Alla – 1-0 – Markovic Milinko – G29 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 a6 8. Nge2 Ne8 9. O-O g6 10. Bh6 Ng7
1968 CSR Ch – Round 2 – Pachman, Ludek – 1-0 – Acosta Fabian, Janna Paloma – G10 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bh3 a6 8. Bxc8 Qxc8 9. Qe2 Nbd7 10. Nf3 Ne8
1968 Monte Carlo – Round 6 – Portisch, Lajos – 1-0 – Damjanovic, Mato – G37 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 b5 7. cxb5 a6 8. Nf3 O-O 9. Nd2 axb5 10. Nxb5 Na6
1968 Reggio Emilia – Round 8 – Trincardi, Tullio – 0-1 – Ghitescu, Theodor – G10 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. g3 Be7 6. Bg2 O-O 7. e4 Nbd7 8. Nge2 Ne8 9. O-O g6 10. Bh6 Ng7
1968 Reykjavik – Round 1 – Addison, Wiliam G – 0-1 – Vasiukov, Evgeni – G21 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. h4 Na6 8. Bh3 Bxh3 9. Nxh3 b5 10. cxb5 Nc7
1968 Solingen GER – Round 4 – Gerusel, Mathias – 1/2-1/2 – Lehmann, Heinz – G10 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. h4 Qa5 8. Bd2 a6 9. a4 Nbd7 10. Bh3 Rb8
1968 WchT U26 15. fin-B – Round 9 – McGrillen, Hugh – 1/2-1/2 – Zwaig, Arne – G38 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. h4 Na6 8. Bh3 Nc7 9. Be3 Rb8 10. Bxc8 Qxc8
1968 YUG Ch 23th – Round 14 – Bukic, Enver – 1/2-1/2 – Janosevic, Dragoljub – G72 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Nbd7 8. Nge2 Ne8 9. O-O g6 10. Be3 Ng7
1968 Yugoslavia – Round 1 – Kushnir, Alla – 1-0 – Markovic, Gordana NN – G5 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 a6 8. Nge2 Ne8 9. O-O g6 10. Bh6 Ng7
1969 Clare Benedict Cup 16th – Round 3 – Lehmann, Heinz – 1-0 – Hartston, William R – G10 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. h4 b5 8. cxb5 a6 9. bxa6 Nbd7 10. Nf3 Qa5
1969 Liberation – Round 3 – Gligorić, Svetozar – 1/2-1/2 – Janosevic, Dragoljub – G18 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bh3 Nbd7 8. Qe2 a6 9. a4 Ne8 10. Nf3 g6
1969 Ljubljana – Round 1 – Gligoric, Sofija – 1-0 – Huicab Puc, Angel Gamaliel – G9 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bh3 Nbd7 8. Nf3 Nb6 9. Bxc8 Qxc8 10. b3 Qh3
1969 Luhacovice – Round 14 – Korchnoi, Viktor – 1-0 – Plachetka, Jan – G99 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Nbd7 8. Qe2 a6 9. a4 b6 10. Kd1 Ne8
1969 Rubinstein Memorial – Round 1 – Saidy, Anthony – 1-0 – Jansa, Vlastimil – G9 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 b5 7. cxb5 a6 8. Nf3 O-O 9. bxa6 Ne8 10. Nd2 Nxa6
4. World Blitz 2008 – Round 8 – Mamedyarov, Shakhriyar – 0-1 – Sasikiran, Krishnan – G51 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 a6 7. a4 b6 8. Bg2 O-O 9. f4 Nbd7 10. Nf3 g6
43. Olympiad 2018 – Round 9.13 – Laznicka, Viktor – 1-0 – Damaso, Rui – G570 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. h4 Na6 8. Bh3 Nc7 9. Bxc8 Qxc8 10. Nf3 a6
Amber Rapid 2006 – Round 9 – Gelfand, Boris – 0-1 – Aronian, Levon – G39 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 Nbd7 7. Bg2 O-O 8. Nge2 Ne8 9. O-O g6 10. Be3 Ng7
Horgen CS 1994 – Round 8 – Lautier, Joel – 1-0 – Miles, Anthony J – G33 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 Nbd7 7. Bg2 a6 8. a4 Rb8 9. Nge2 h5 10. h4 b6
TCh-RUS 2008 – Round 1 – Iljushin, Alexei – 1/2-1/2 – Ni, Hua – G9 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Nbd7 8. Nge2 Ne8 9. O-O g6 10. Bh6 Ng7
Thessaloniki olm 1988 – Round 2 – Nikolic, Pavle – 1-0 – Braga, Felipe De Souza – G9 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 Na6 7. Bg2 Nc7 8. f4 exf4 9. Bxf4 Nd7 10. Nf3 g5

A56s — Czech

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.g3

Eval: [+1.07]

Les coups candidats

6…O-O — 69.5% (1062 parties) →

Ambassadeurs : Veinger, Itzhak (13x), Liublinsky, Victor (8x), Ciocaltea, Victor (8x), Hort, Vlastimil (8x), Korchnoi, Viktor (8x), Miles, Anthony J (7x), Manolov, Ivan (7x), Kaspi, Alexander (7x)

6…Nbd7 — 14.3% (219 parties)

Ambassadeurs : Salvermoser, Bernd (5x), Finegold, Benjamin (5x), Palek, Miroslav (4x), Schwabeneder, Florian (4x), Olsar, Jaroslav (3x), Milov, Vadim (3x), Jacobsen, Bo (3x), Michel, Steve (3x)

6…Na6 — 5.1% (78 parties)

Ambassadeurs : Maiorov, Oleg (5x), Braga, Felipe De Souza (3x), Ovetchkin, Roman (3x), Braga, Fernando (2x), Hoffmann, Asa (2x), Miles, Anthony J (2x), Doroshkievich, Vladimir K (2x), Langner, Ladislav (2x)

6…a6 — 5.0% (77 parties)

Ambassadeurs : Ward, Chris G (3x), Webster, Andrew A (3x), Liew, Chee-Meng Jimmy (2x), Stupica, Janez (1x), Lukic, Arsenije (1x), Ftacnik, Lubomir (1x), Vaisman, Volodia (1x), Moran Nuque, Bernardo (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…O-O	6…Nbd7	6…Na6	6…a6
<1800	10	90%	—	—	—
1800-2200	385	68%	17%	5%	5%
2200-2600	844	66%	15%	6%	6%
2600+	19	53%	26%	11%	11%

Évolution par décennie (% des parties)

Décennie	N parties	6…O-O	6…Nbd7	6…Na6	6…a6
1930s	1	100%	—	—	—
1940s	11	91%	9%	—	—
1950s	16	88%	6%	—	6%
1960s	70	89%	—	1%	—
1970s	90	80%	9%	1%	6%
1980s	129	77%	6%	10%	4%
1990s	277	78%	11%	5%	5%
2000s	398	68%	12%	5%	7%
2010s	488	60%	23%	6%	5%
2020s	49	51%	18%	8%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…O-O	60%	51%	▼ -9.2%
6…Nbd7	23%	18%	▼ -5.0%
6…Na6	6%	8%	▲ +2.4%
6…a6	5%	2%	▼ -3.3%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 3 parties
Smyslov, Vladimir — 1 partie
Karpov, Aleksandr — 1 partie

Parties historiques

6…O-O — 69.5% (1062 parties)

1939 — Grau, Roberto G vs Czerniak, Magdalena — 1/2-1/2 — Buenos Aires ARG
1945 — Poliak, Abram vs Simagin, Vladimir — 1-0 — Moscow RUS
1945 — Giorgadze, Giorgi Gel vs Petrosian, Tigran V. — 1/2-1/2 — Tbilisi GEO
1945 — Georgadze, G. vs Petrosian, Tigran V. — 1/2-1/2 — Tbilisi ch-SU
1945 — Verlinsky, Boris vs Liublinsky, Victor — 1/2-1/2 — Moscow RUS

6…Nbd7 — 14.3% (219 parties)

1946 — Solntsev, Yury vs Panov, Vasily — 1/2-1/2 — Moscow RUS
1956 — Lilienthal, Andor vs Kasparian, Genrikh — 1/2-1/2 — Erevan ARM
1970 — Segal, Alexandru Sorin vs Ciocaltea, Victor — 1/2-1/2 — Bucharest ROU
1971 — Dobrzynski, Wojciech vs Sznapik, Aleksander — 1-0 — Poznan POL
1972 — Shamkovich, Leonid vs Ghinda, Nina — 1/2-1/2 — Timisoara

6…Na6 — 5.1% (78 parties)

1966 — Vladimirov, Boris T vs Sergievsky, Vladimir D — 1-0 — Sochi RUS
1973 — Yepez, Olavo vs Hernandez, Gustavo — 1/2-1/2 — Caracas VEN
1982 — David Glaz, Ilana vs Leme, Jussara Chaves Garc — 1-0 — Lucerne SUI
1986 — Simon, Jerry C vs Hoffmann, Asa — 0-1 — Somerset
1987 — Hansen, Lars Bo vs Hartston, William R — 1/2-1/2 — Londen open

6…a6 — 5.0% (77 parties)

1959 — Stupica, Janez vs Lukic, Arsenije — 1-0 — Kragujevac SRB
1970 — Petkevich, Jusefs vs Kopylov, Igor A — 1-0 — Dnipropetrovsk
1970 — Forintos, Gyozo V vs Honfi, K. — 1-0 — Wijk aan Zee NED
1976 — Lemaire, Robert vs Wostyn, Rik H. — 1-0 — Ostend
1978 — Ftacnik, Lubomir vs Vaisman, Volodia — 1/2-1/2 — Bucharest ROU

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