Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● f2→g3, h2→g3 ● f7→g6, h7→g6
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes
Cases faibles
Centre ● d5 (1v0)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 0)
Bf1 ● Bf1 Non développé (mob. 2)
Bc8 ● Bc8 Non développé (mob. 0)
Bf8 ● Bf8 Non développé (mob. 2)
Paire de fous ● Oui ● Oui
Non développées 6 (● b1, ● g1, ● c1, ● f1, ● a1, ● h1) 6 (● b8, ● g8, ● c8, ● f8, ● 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

A10k — English: 1…g6 2.g3

1.c4 g6 2.g3 *   ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bB
bQ
bK
bB
bN
bR
bP
bP
bP
bP
bP
bP
bP
bP
wP
wP
wP
wP
wP
wP
wP
wP
wR
wN
wB
wQ
wK
wB
wN
wR
abcdefgh
Plans. Bg2 (Fianchetto, fou sur la grande diagonale — 96 % des parties) ; Nc3 (Développer b1 — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wN
wB
wK
wQ
wB
wN
wR
wP
wP
wP
wP
wP
wP
wP
wP
bP
bP
bP
bP
bP
bP
bP
bP
bR
bN
bB
bK
bQ
bB
bN
bR
hgfedcba
Plans. ...Bg7 (Fianchetto, fou sur la grande diagonale — 95 % des parties) ; ...c5 (Frapper le centre adverse — 2 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
1955 Moskou ch-URS – Round 1 – Taimanov, Mark E – 1/2-1/2 – Borisenko, Georgy K – G11
1. c4 g6 2. g3 Bg7 3. Bg2 Nc6 4. Nc3 d6 5. e3 e5 6. Nge2 Bd7 7. O-O Qc8 8. Nd5 Nd8 9. d4 c6 10. Ndc3 f5
1956 Marianske Lazne/Praha – Round 14 – Rejfir, Josef – 1-0 – Uhlmann, Wolfgang – G92
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. e3 e5 5. Nc3 Ne7 6. Nge2 O-O 7. O-O c6 8. d4 Bg4 9. h3 Be6 10. b3 d5
1956 Marianske Lazne/Praha – Round 3 – Pachman, Ludek – 1-0 – Szilagyi, Gyorgy Laszlo – G13
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 c5 5. e3 Nc6 6. Nge2 Nf6 7. d4 O-O 8. O-O Bf5 9. b3 cxd4 10. Nxd4 Nxd4
1956 Marianske Lazne/Praha – Round 8 – Zíta, František – 1/2-1/2 – Uhlmann, Wolfgang – G51
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. d4 c5 5. e3 Nc6 6. Ne2 Bg4 7. f3 Bd7 8. Nbc3 Nf6 9. b3 O-O 10. O-O Rb8
1956 URS Ch sf – Round ? – Aronson, Lev – 1/2-1/2 – Vasiukov, Evgeni – G6
1. c4 g6 2. g3 Bg7 3. Bg2 Nc6 4. Nc3 d6 5. e3 e5 6. Nge2 f5 7. O-O Nf6 8. d3 O-O 9. Rb1 a5 10. Nd5 Nxd5
1956 URS Ch sf – Round ? – Makarov, Andrei – 1-0 – Aronson, Lev – G9
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. e4 Ne7 6. Nge2 Nbc6 7. O-O O-O 8. d3 Nd4 9. Nxd4 exd4 10. Ne2 c6
1957 HUN Ch – Round ? – Koberl, Ferenc – 1-0 – Portisch, Lajos – G3
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. d3 Ne7 6. h4 h6 7. Bd2 Nbc6 8. Rb1 a5 9. a3 Nd4 10. e3 Ne6
1958 HUN Ch 13th – Round 11 – Barcza, Gedeon – 1/2-1/2 – Ozsvath, Andras – G91
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 Nc6 5. e3 e5 6. Nge2 Nge7 7. Rb1 O-O 8. b4 Be6 9. Nd5 a6 10. O-O Qd7
1958 Munich olm fin-B – Round 6 – Boutteville, Cesar – 1-0 – Larsen, Benjamin Holsko – G23
1. c4 g6 2. g3 Bg7 3. Bg2 Nc6 4. e3 Nf6 5. Nc3 O-O 6. Nge2 d6 7. d3 e5 8. Rb1 a5 9. a3 Bg4 10. h3 Be6
1958 Riga ch-URS – Round 1 – Petrosian, Tigran A. – 1/2-1/2 – Taimanov, Mark E – G8
1. c4 g6 2. g3 Bg7 3. Bg2 Nc6 4. Nc3 d6 5. d3 Nf6 6. Rb1 a5 7. Nf3 O-O 8. O-O Bd7 9. a3 Qc8 10. b4 axb4
1961 Bled – Round 19 – Petrosian, Tigran V – 1-0 – Gligorić, Svetozar – G163
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 c5 5. e3 Nc6 6. Nge2 Nf6 7. b3 O-O 8. O-O Bd7 9. d4 Qc8 10. Re1 Bh3
1961 Budapest – Round 1 – Korchnoi, Viktor – 1-0 – Aczel Szabo, Janos – G8
1. g3 g6 2. c4 Bg7 3. d4 c5 4. d5 e5 5. Nc3 d6 6. e4 Nd7 7. Bd3 Ne7 8. g4 Nf6 9. h3 a6 10. f4 exf4
1961 EU Team Ch – Round 7 – Haag, Ervin – 1-0 – Franco Atehortua, Xiomara Andrea – G9
1. c4 g6 2. g3 Bg7 3. Bg2 f5 4. Nc3 Nh6 5. d4 Nc6 6. Nf3 Nf7 7. h4 h6 8. Nd5 e5 9. h5 g5 10. dxe5 Ncxe5
1961 Torremolinos – Round 11 – Farre Mallofre, Miguel – 0-1 – Gligorić, Svetozar – G45
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. e3 Nf6 5. Ne2 O-O 6. O-O e5 7. Nbc3 Re8 8. d3 c6 9. e4 Na6 10. h3 Nc7
1961 Zevenaar – Round 1 – Stahlberg, Gideon – 1/2-1/2 – Bobotsov, Milko G – G3
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. e3 Nc6 5. Ne2 e5 6. O-O Nge7 7. Nbc3 d6 8. b3 O-O 9. Bb2 Bg4 10. h3 Be6
1962 Lasker Memorial – Round 1 – Udovcic, Mijo – 1-0 – Raetsch, Heinz – G1
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nf3 e5 5. O-O Nf6 6. d4 e4 7. Ng5 Qe7 8. Nc3 Bf5 9. f3 exf3 10. Rxf3 O-O
1962 Mar del Plata – Round 7 – Letelier Martner, Rene – 1/2-1/2 – Panno, Oscar – G64
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. e3 Nf6 5. Ne2 O-O 6. O-O e5 7. Nbc3 Nbd7 8. b3 Re8 9. Bb2 c6 10. Qc2 Qe7
1962 URS Team Ch – Round ? – Peterson, Andrejs – 1/2-1/2 – Nikolaevsky, Yuri V – G138
1. c4 g6 2. g3 Bg7 3. Bg2 Nc6 4. Nc3 d6 5. e3 Nf6 6. Nge2 O-O 7. d4 e5 8. O-O Re8 9. d5 Nb8 10. e4 c5
1963 Kiev Ch – Round 5 – Kostiuchenko, Alexander – 1-0 – Gershman, Semion – G16
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. e3 Nc6 5. Ne2 h5 6. h3 d6 7. Nbc3 Bd7 8. a3 Rb8 9. Rb1 Qc8 10. d3 Nf6
1963 UKR Ch – Round 15 – Kostiuchenko, Alexander – 1/2-1/2 – Gufeld, Eduard – G97
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. e3 Nc6 5. Ne2 e5 6. Nbc3 Nge7 7. a3 d6 8. Rb1 Bf5 9. d3 Qd7 10. h3 O-O
1964 Belgrade – Round 7 – Korchnoi, Viktor – 1-0 – Trifunovic, Petar – G55
1. g3 g6 2. c4 Bg7 3. d4 c6 4. e4 d5 5. cxd5 cxd5 6. e5 Nc6 7. Nc3 Nh6 8. Bxh6 Bxh6 9. Bg2 O-O 10. Nge2 e6
1964 Chigorin Memorial – Round 11 – Bondarevsky, Igor – 0-1 – Doroshkievich, Vladimir K – G68
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 c5 5. e3 Nc6 6. Nge2 e5 7. a3 Nge7 8. Rb1 a5 9. O-O O-O 10. Nd5 Bd7
1964 Tel Aviv olm fin-A – Round 3 – Byrne, David – 0-1 – Spiridonov, Nikola – G47
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 Nc6 5. Rb1 a5 6. a3 e5 7. e3 Be6 8. d3 Qd7 9. Nd5 Nf6 10. Ne2 O-O
1965 Copenhagen – Round 12 – Ujtelky, Maximilian – 1-0 – Andersen, Borge – G97
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 Nf6 5. b4 a5 6. b5 O-O 7. Bb2 Nbd7 8. Na4 e5 9. Qc2 Re8 10. d3 Nf8
1966 Tbilisi ch-URS – Round 18 – Taimanov, Mark E – 1/2-1/2 – Bronstein, David I – G160
1. c4 g6 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. Qb3 e6 6. Nf3 Bg7 7. O-O Ne7 8. d3 O-O 9. Bd2 Nbc6 10. Rc1 Nf5
1966 URS Team Ch – Round ? – Botvinnik, Mikhail – 0-1 – Petrosian, Tigran V – G7
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. d3 Ne7 6. e4 O-O 7. Nge2 Nbc6 8. O-O f5 9. Nd5 Kh8 10. Be3 Be6
1968 It Buesum GER – Round 7 – Besser, Hans – 1-0 – Donner, Jan-Hein – G29
1. c4 g6 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. Qb3 Nf6 6. Nc3 e6 7. d4 Nc6 8. Nf3 Bg7 9. O-O O-O 10. Bf4 b6
1968 Manila – Round 9 – Naranja, Renato – 1/2-1/2 – Lobigas, Julian – G15
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. d4 Nf6 5. e4 O-O 6. Ne2 e5 7. d5 Nbd7 8. Nbc3 a5 9. O-O Nc5 10. h3 Bd7
1968 Toth Memorial – Round 11 – Barcza, Gedeon – 1-0 – Doda, Zbigniew – G40
1. c4 g6 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. d4 Bg7 6. Nc3 Nf6 7. e3 O-O 8. Nge2 Nc6 9. O-O e6 10. Nf4 Re8
1968 Wijk aan Zee II – Round 1 – Ujtelky, Maximilian – 0-1 – Ostojic, Predrag – G5
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. d3 f5 6. Bd2 Nh6 7. b4 Nf7 8. h4 h6 9. Rb1 O-O 10. Qc2 Nc6
1969 Budapest ch-HUN – Round 1 – Forintos, Gyozo V – 1-0 – Vadasz, Laszlo – G15
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 c6 5. d3 Nf6 6. e4 a6 7. Nge2 b5 8. cxb5 axb5 9. b4 O-O 10. h3 e5
1969 IBM-B – Round 4 – De Rooi, Paul – 1/2-1/2 – Van Baarle, John – G22
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. e3 Nc6 5. Ne2 Nf6 6. Nbc3 O-O 7. O-O d6 8. b3 Bd7 9. Bb2 a6 10. d4 cxd4
1969 Raach zt – Round 7 – Smejkal, Jan – 1-0 – Adamski, Jan – G70
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. d3 f5 6. e4 Nc6 7. Nge2 Nf6 8. O-O O-O 9. Nd5 Nh5 10. exf5 gxf5
1969 Rubinstein Memorial – Round 3 – Lewi, Joseph – 1-0 – Bednarski, Jacek – G8
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. d3 f5 6. Nf3 Nf6 7. Rb1 a5 8. a3 O-O 9. O-O Nbd7 10. b4 axb4
1972 Skopje ol (Men) fin-A – Round 3. – Kestler, Hans-Guenther – 1-0 – Peev, Peicho – G63
1. c4 g6 2. g3 Bg7 3. Nf3 e5 4. Nc3 Nc6 5. Bg2 Nge7 6. O-O O-O 7. d3 d6 8. Bd2 h6 9. Rb1 a5 10. Ne1 Be6
1974 Manila – Round 6 – Naranja, Renato – 0-1 – Quinteros, Miguel Angel – G20
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. d4 Nf6 5. e4 O-O 6. Ne2 Nbd7 7. Nbc3 e5 8. d5 Nc5 9. b4 Ncd7 10. a3 a5
40. Olympiad Open 2012 – Round 1.17 – Machin Rivera, Mark – 1/2-1/2 – Saric, Ivan – G26
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. e3 Nc6 5. Ne2 e5 6. Nbc3 Nge7 7. O-O d6 8. d3 h5 9. h4 Bg4 10. Ne4 Qd7
40. Olympiad Open 2012 – Round 1.7 – Mamedov, Rauf – 1-0 – Jeitz, Christian – G70
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nf3 Nc6 5. O-O Nf6 6. d4 cxd4 7. Nxd4 Qb6 8. Nb3 d6 9. Be3 Qc7 10. Nc3 Ng4
Amber Rapidplay 2002 – Round 6 – Bareev, Evgeny – 0-1 – Leko, Peter – G8
1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. e3 e6 5. d4 Ne7 6. d5 exd5 7. cxd5 d6 8. Nc3 O-O 9. Nf3 a6 10. a4 Nd7
FIDE World Rapid 2014 – Round 7.15 – Svidler, Peter – 1/2-1/2 – Guseinov, Gadir – G96
1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. d4 Nd7 5. Nf3 e5 6. Nc3 Ne7 7. O-O O-O 8. e4 exd4 9. Nxd4 Nc6 10. Nde2 Nc5
World Blitz 2017 – Round 7.31 – Short, Nigel D – 0-1 – McShane, Luke J – G363
1. c4 g6 2. g3 Bg7 3. Bg2 f5 4. Nc3 Nf6 5. e3 O-O 6. Nge2 e5 7. d3 d6 8. O-O c6 9. f4 a5 10. Rb1 Be6
World Blitz 2021 – Round 4.49 – Teclaf, Pawel – 1-0 – Erdos, Viktor – G236
1. c4 g6 2. g3 Bg7 3. Bg2 c6 4. Nf3 d5 5. O-O e5 6. d3 Ne7 7. Qc2 O-O 8. Rd1 h6 9. Nc3 Be6 10. b3 Nd7

A10k — English (1955)
1.c4 g6 2.g3
Les coups candidats
2…Bg7 — 93.2% (11039 parties)
Ambassadeurs : McNab, Colin A (55x), Foisor, Cristina-Adela (41x), Giardelli, Sergio C. (30x), Sehner, Norbert (29x), Zueger, Beat (28x), Ruck, Robert (27x), Weyerstrass, Ronald (26x), Bak, Istvan (25x)
Ambassadeurs : Pinter, Erik (4x), Shetty, Shreya A (4x), Shundi, Matias (4x), Vakhidov, Jakhongir (4x), Sciarretta, Robert W (3x), Ondersteijn, Niels (3x), Oechslein, Rainer (3x), Safarli, Josefine (3x)
Ambassadeurs : Budzyn, Matthias (4x), Kaminski, Marcin (3x), Ruck, Robert (3x), Kempinski, Robert (3x), Tal, Mikhail (2x), Uhlmann, Wolfgang (2x), Cmilyte, Viktorija (2x), Delithanasis, Dimitrios (2x)
2…c6 — 0.7% (79 parties)
Ambassadeurs : Kaminski, Marcin (5x), Nunn, John D M (4x), Swara Lakshmi S Nair (2x), Besser, Hans (1x), Donner, Jan-Hein (1x), Marest, Steren (1x), Zagorovsky, Vladimir (1x), Anay Barche (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 2…Bg7 2…c5 2…Nf6 2…c6
<1800 543 86% 4% 4% 3%
1800-2200 4392 93% 3% 2% 1%
2200-2600 5666 95% 3% 1% 0%
2600+ 114 84% 9% 1% 4%
Évolution par décennie (% des parties)
Décennie N parties 2…Bg7 2…c5 2…Nf6 2…c6
1950s 50 98% 2%
1960s 279 93% 2% 1% 2%
1970s 437 95% 3% 1% 1%
1980s 528 96% 1% 2% 0%
1990s 2017 95% 2% 1% 1%
2000s 2874 95% 2% 1% 0%
2010s 4535 92% 4% 2% 1%
2020s 1125 89% 7% 2% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
2…Bg7 92% 89% ▼ -3.2%
2…c5 4% 7% ▲ +3.1%
2…Nf6 2% 2% -0.4%
2…c6 1% 1% +0.4%
Joueurs célèbres
Champions du monde dans cette position
Botvinnik, Mikhail — 9 parties
Carlsen, Magnus — 9 parties
Ding, Liren — 6 parties
Tal, Mikhail — 5 parties
Kasparov, Garry — 5 parties
Kramnik, Vladimir — 4 parties
Ju, Wenjun — 4 parties
Gukesh D — 4 parties
Karpov, Anatoly — 2 parties
Anand, Viswanathan — 1 partie
Parties historiques
2…Bg7 — 93.2% (11039 parties)
1950 — Donner, Jan-Hein vs Pilnik, Herman — 1/2-1/2 — Dubrovnik olm
1955 — Taimanov, Mark vs Borisenko, Georgy K — 1/2-1/2 — Moskou ch-URS
1955 — Filip, Miroslav vs Robatsch, Karl — 1/2-1/2 — Praag CZE-AUT
1955 — Castaldi, Vincenzo vs Beni, Alfred — 0-1 — Hamburg GER
1956 — Al Husari, Zita Fatima vs Uhlmann, Wolfgang — 1/2-1/2 — Marianske Lazne
2…c5 — 3.4% (400 parties)
1956 — Botvinnik, Mikhail vs Gligoric, Sofija — 1-0 — Moskou olm
1964 — Tsvetkov, Alexandar K vs Spiridonov, Nikola — 1/2-1/2 — Sofia BUL
1965 — Ruban, Evgeny vs Moehring, Guenther — 1/2-1/2 — Berlin East
1967 — Ujtelky, Maximilián Samuel Rudolf vs Zhukhovitsky, Samuel — 1-0 — Sochi RUS
1968 — Van Oosterom, Hennie vs Hartoch, Robert G — 1/2-1/2 — Amsterdam NED
2…Nf6 — 1.7% (205 parties)
1960 — Naranja, Renato vs Janetschek, Karl — 1-0 — Leipzig GER
1963 — Tal, Mikhail vs Uhlmann, Wolfgang — 1-0 — Havana CUB
1963 — Tal, Mikhail vs Uhlmann, Wolfgang — 1-0 — Havana CUB
1969 — Huebner, Robert vs Maeder, Karl-Heinz — 1-0 — Frankfurt GER
1971 — Taylor, WH. vs Crombleholme, Alan K — 0-1 — Barnstaple
2…c6 — 0.7% (79 parties)
1963 — Korchnoi, Viktor vs Trifunovic, Petar — 1/2-1/2 — Rijeka CRO
1966 — Taimanov, Mark vs Bronstein, David I — 1/2-1/2 — Tbilisi ch-URS
1968 — Besser, Hans vs Donner, Jan-Hein — 1-0 — It Buesum GER
1968 — Marest, Steren vs Zagorovsky, Vladimir — 0-1 — corr Wch6
1968 — Anay Barche vs Doda, Zbigniew — 1-0 — Kecskemet HUN

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