A56t — Benoni: Czech, 5.e4 Be7 6.g3 O-O 7.Bg2 Ne8

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.g3 O-O 7.Bg2 Ne8 * ○ Trait aux Blancs

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. Le fou enfermé en c8 et un mauvais fou en e7.

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

Plans. Nf3 (Développer Ng1) ; Be3 (Développer Bc1).

♚ 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 la case forte d4 et la paire de fous.

Côté adverse. Le fou enfermé en c1 et le roi resté au centre.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...Nbd7 (Développer Nb8) ; ...f6 (Rupture).

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)
Cases faibles	—	● d5
Centre	● d5 (4v0), ● e4 (2v0)	● d4 (2v1), ● e5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Ok (mob. 3)
Be7		● Be7 Mauvais (mob. 3)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● g1, ● c1, ● a1, ● h1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● f2-f3	● …f7-f6, ● …f7-f5

Partie
? 2000 – Round ? – Shipov, Sergei – 1-0 – Silva Sanchez, Carlos – G32 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nf3 Na6 9. O-O Nac7 10. Ne1 a6
1939 Buenos Aires Circulo – Round 1 – Grau, Roberto G – 1/2-1/2 – Czerniak, Magdalena – G17 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 f5 9. O-O Nf6 10. f4 exf4
1941 Buenos Aires – Round 1 – Stahlberg, Gideon – 1-0 – Acebey Michel, Veroska – G7 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. g3 Be7 6. Bg2 O-O 7. e4 Ne8 8. Nge2 f5 9. f4 exf4 10. Nxf4 Bf6
1941 Buenos Aires Circulo – Round 11 – Stahlberg, Gideon – 1-0 – Michel, Paul – G40 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. g3 Be7 6. Bg2 O-O 7. e4 Ne8 8. Nge2 f5 9. f4 exf4 10. Nxf4 Bf6
1945 Moscow Ch – Round 2 – Poliak, Abram – 1-0 – Simagin, Vladimir – G6 1. d4 c5 2. d5 e5 3. e4 d6 4. c4 Nf6 5. Nc3 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O Kh8 10. Be3 g6
1945 USSR ch sf – Round 12 – Verlinsky, Boris – 1/2-1/2 – Liublinsky, Victor – G19 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O Rb8 10. Be3 a6
1945 USSR ch sf – Round 2 – Saigin, Vladimir – 1/2-1/2 – Liublinsky, Victor – G6 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nf3 Nd7 9. O-O a6 10. h3 Rb8
1949 Moskou ch-URS – Round 1 – Geller, Efim P – 1-0 – Liublinsky, Victor – G47 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O Rb8 10. a3 a6
1949 Moskou ch-URS – Round 1 – Lilienthal, Andor – 1/2-1/2 – Liublinsky, Victor – G46 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O Rb8 10. Be3 a6
1949 URS Ch, semi final – Round 1 – Fridstein, German – 0-1 – Liublinsky, Victor – G29 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O Rb8 10. Kh1 Kh8
1950 Moskou ch-URS – Round 1 – Geller, Efim P – 1-0 – Liublinsky, Victor – G31 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O a6 10. Be3 Rb8
1952 Moscow Ch – Round 14 – Lilienthal, Andor – 1/2-1/2 – Liublinsky, Victor – G74 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. g3 Be7 6. Bg2 O-O 7. e4 Ne8 8. Nge2 Nd7 9. O-O a6 10. Be3 g6
1955 URS Ch sf – Round 1 – Furman, Slavomir – 0-1 – Korchnoi, Viktor – G5 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Bg5 9. O-O Bxc1 10. Qxc1 Qe7
1956 URS Ch, semi final – Round 1 – Furman, Slavomir – 1/2-1/2 – Yukhtman, Yakov – G15 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Bg5 9. O-O Bxc1 10. Qxc1 Nd7
1956 URS Ch, semi final – Round 13 – Polugaevsky, Lev – 1-0 – Kasparian, Genrikh – G98 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Bg5 9. O-O Bxc1 10. Nxc1 g6
1957 URS Ch, semi final – Round 6 – Vladimirov, Boris T – 1/2-1/2 – Yukhtman, Yakov – G69 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Bg5 9. O-O Bxc1 10. Nxc1 f5
1958 HUN Ch 13th – Round 4 – Gasztonyi, Endre – 1-0 – Hajtun, Jozsef – G32 1. d4 Nf6 2. c4 c5 3. d5 e5 4. g3 d6 5. Bg2 Be7 6. Nc3 O-O 7. e4 Ne8 8. Nge2 f5 9. O-O Nf6 10. f4 fxe4
1961 Budapest ch-HUN – Round 1 – Kluger, Gyula – 0-1 – Szabo, Ladislav – G31 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O g6 10. Bh6 Ng7
1962 Yalta – Round ? – Savon, Vladimir A – 0-1 – Kopilov, Nikolay Georgiyevich – G5 1. c4 Nf6 2. d4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 g6 9. O-O Ng7 10. Be3 Nd7
1963 Enschede zt – Round 1 – Gligoric, Sofija – 1-0 – Boey, Jin Huey – G8 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Bg5 9. f4 Bh6 10. O-O Nd7
1964 Amsterdam Interzonal – Round 5 – Vranesic, Zvonko – 1/2-1/2 – Bilek, Istvan – G41 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Na6 9. O-O Nac7 10. Be3 Rb8
1964 Budapest ch-HUN – Round 1 – Haag, Ervin – 1/2-1/2 – Hajtun, Jozsef – G42 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O Rb8 10. Be3 g6
1964 Budapest ch-HUN – Round 1 – Honfi, K. – 1-0 – Hajtun, Jozsef – G39 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nf3 Bg4 9. h3 Bd7 10. O-O Na6
1964 Kecskemet zt – Round 1 – Clarke, Paul R H – 1-0 – Langeweg, Kick – G21 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O a6 10. a4 b6
1964 Tel Aviv olm fin-A – Round 10 – Udovcic, Mijo – 1-0 – Ciocaltea, Victor – G208 1. d4 c5 2. d5 e5 3. e4 d6 4. c4 Nf6 5. Nc3 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Bg5 9. O-O Bxc1 10. Nxc1 a6
1964 Tel Aviv olm fin-A – Round 5 – Vranesic, Zvonko – 0-1 – Ciocaltea, Victor – G98 1. d4 c5 2. d5 e5 3. e4 d6 4. c4 Nf6 5. Nc3 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Bg5 9. O-O Bxc1 10. Qxc1 a6
1966 Havana olm – Round 1 – Ghitescu, Theodor – 1/2-1/2 – Simon Cobo, Enrique – G10 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 g6 9. O-O Ng7 10. Be3 Nd7
1966 La Habana olm fin-A – Round 1 – Ghitescu, Theodor – 1/2-1/2 – Cobo Arteaga, Eldis – G4 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 g6 9. O-O Ng7 10. Be3 Nd7
1966 La Habana olm fin-A – Round 7 – Benko, Pal – 1-0 – Zwaig, Arne – G123 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 f5 9. exf5 Bxf5 10. O-O Nd7
1966 La Habana olm fin-A – Round 7 – Lengyel, Laszlo – 1/2-1/2 – Simon Cobo, Enrique – G124 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 g6 9. Bh6 Ng7 10. Qd2 Nd7
1966 Reykjavik – Round 8 – Palmason, Gudmundur – 1-0 – Wade, Robert G – G39 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Na6 9. O-O Nac7 10. f4 a6
1967 Halle zt – Round 2 – Portisch, Lajos – 1-0 – Zwaig, Arne – G8 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O g6 10. Bh6 Ng7
1967 Oxford ch-BCF – Round 8 – Whiteley, Andrew Jonathan – 0-1 – Phillips, James Rodney – G72 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 g6 9. O-O f5 10. Be3 Nd7
1967 Vrnjacka Banja zt – Round 15 – Pachman, Ludek – 1/2-1/2 – Watzka, Horst – G103 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O a6 10. a4 b6
1968 Prague U26 – Round 13 – Spesny, Jan – 0-1 – Pribyl, Josef – G53 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. g3 Be7 6. Bg2 O-O 7. e4 Ne8 8. Nge2 Bg5 9. O-O Bxc1 10. Rxc1 Nd7
1969 USSR – Round 1 – Osnos, Viatcheslav – 0-1 – Yukhtman, Yakov – G11 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nge2 Nd7 9. O-O g6 10. Be3 Ng7
1969 Varna – Round 1 – Hort, Vlastimil – 1-0 – Popov, Yuri. – G2 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nf3 g6 9. Bh6 Ng7 10. O-O Nd7
SWIFT 1986 – Round 1 – Miles, Anthony J – 1/2-1/2 – Seirawan, Yasser – G5 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 O-O 7. Bg2 Ne8 8. Nh3 Nd7 9. O-O g6 10. Qd3 Ng7

A56t — Czech

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.g3 O-O 7.Bg2 Ne8

Eval: [+1.14]

Les coups candidats

8.Nge2 — 86.2% (494 parties)

Ambassadeurs : Liublinsky, Victor (8x), Kristol, Luba (6x), Veinger, Itzhak (6x), Manolov, Ivan (6x), Miles, Anthony J (5x), Schaefer, Anke (4x), Zakharevich, Igor (4x), Lilienthal, Andor (3x)

8.Nf3 — 8.0% (46 parties)

Ambassadeurs : Hort, Vlastimil (2x), Honfi, K. (2x), Saigin, Vladimir (1x), Liublinsky, Victor (1x), Kotov Lundqvist, Alex (1x), Kholmov, Ratmir D (1x), O'Riordan, Kenneth (1x), Ornithopoulos, Nikolaos (1x)

8.h4 — 2.1% (12 parties)

Ambassadeurs : Allen Abhilash (2x), Minev, Nikolay N (1x), Popov, Luben (1x), Myers, Jevonne (1x), Ciornei, Dragos, Dr. (1x), Allen, Andrew (1x), Pizzato, Charles (1x), Babula, Vlastimil (1x)

8.f4 — 1.4% (8 parties)

Ambassadeurs : Szukszta, Janus (1x), Golovko, Nikolay Grigorievic (1x), Averkin, Orest (1x), Yukhtman, Yakov (1x), Tyrtania, Maximilian (1x), Rosmann, Ilja (1x), Kozek, Wojciech (1x), Pertkiewicz, L. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.Nge2	8.Nf3	8.h4	8.f4
<1800	5	40%	20%	20%	20%
1800-2200	124	88%	5%	2%	—
2200-2600	304	87%	9%	2%	1%
2600+	6	50%	—	17%	—

Évolution par décennie (% des parties)

Décennie	N parties	8.Nge2	8.Nf3	8.h4	8.f4
1920s	1	100%	—	—	—
1930s	1	100%	—	—	—
1940s	12	83%	17%	—	—
1950s	11	100%	—	—	—
1960s	34	79%	18%	—	3%
1970s	35	83%	6%	3%	3%
1980s	62	85%	10%	—	—
1990s	125	86%	7%	4%	2%
2000s	132	86%	7%	2%	2%
2010s	147	88%	8%	1%	1%
2020s	13	92%	—	8%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.Nge2	88%	92%	▲ +4.6%
8.Nf3	8%	0%	▼ -8.2%
8.h4	1%	8%	▲ +6.3%
8.f4	1%	0%	▼ -0.7%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Aleksandr — 1 partie

Parties historiques

8.Nge2 — 86.2% (494 parties)

1922 — Becker, Albert vs Gruenfeld, Ernst — 1-0 — Vienna AUT
1939 — Grau, Roberto G vs Czerniak, Magdalena — 1/2-1/2 — Buenos Aires ARG
1941 — Stahlberg, Gideon vs Michel, Paul — 1-0 — Buenos Aires ARG
1941 — Stahlberg, Gideon vs Acebey Michel, Veroska — 1-0 — Buenos Aires ARG
1945 — Poliak, Abram vs Simagin, Vladimir — 1-0 — Moscow RUS

8.Nf3 — 8.0% (46 parties)

1945 — Saigin, Vladimir vs Liublinsky, Victor — 1/2-1/2 — Moscow RUS
1947 — Kotov Lundqvist, Alex vs Kholmov, Ratmir D — 1/2-1/2 — Memorial M.Chigorin Moscow (14)
1963 — Cortes Gheorghiu, Christian vs Janata, Adam — 1-0 — Vrnjacka Banja SRB
1964 — Honfi, K. vs Hajtun, Jozsef — 1-0 — Budapest ch-HUN
1968 — O'Riordan, Kenneth vs Ornithopoulos, Nikolaos — 1/2-1/2 — Lugano SUI

8.h4 — 2.1% (12 parties)

1970 — Minev, Nikolay N vs Popov, Luben — 1/2-1/2 — Sofia BUL
1992 — Babula, Vlastimil vs Tobyas, Miroslav — 1-0 — Prague CZE
1992 — Karpov, Aleksandr vs Seirawan, Yasser — 0-1 — Roquebrune blitz
1995 — Allen, Andrew vs Pizzato, Charles — 1-0 — Gold Coast AUS
1997 — Allen Abhilash vs Ciornei, Dragos, Dr. — 1-0 — Budapest HUN

8.f4 — 1.4% (8 parties)

1964 — Szukszta, Janus vs Golovko, Nikolay Grigorievic — 0-1 — Moscow RUS
1970 — Averkin, Orest vs Yukhtman, Yakov — 1-0 — Leningrad RUS
1993 — Kozek, Wojciech vs Pertkiewicz, L. — 1-0 — corr PAT
1993 — Roeber, Bjoern vs Kuehn, Stefan — 0-1 — Hamburg ch-GER U15
1998 — Tyrtania, Maximilian vs Rosmann, Ilja — 1/2-1/2 — GER

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