A35j — English: Symmetrical, Four Knights, 4.g3

1.c4 c5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 *   ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bBFou enfermé — mobilité 0
bQ
bKRoi au centre — vulnérable
bBFou enfermé — mobilité 0
bR
bP
bP
bP
bP
bP
bP
bP
bN
bN
Case forte (2v0)
bP
Case forte (2v1)
wP
wN
wN
wP
wP
wP
wP
wP
wP
wP
wR
wB
wQ
wK
wB
wR
abcdefgh
Avantages : case forte b5, case forte d5, paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, menace e5, libère Bf1
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wBFou enfermé — mobilité 2
wKRoi au centre — doit roquer
wQ
wBFou enfermé — mobilité 0
wR
wP
wP
wP
wP
wP
wP
wP
wN
wN
Case forte (2v1)
wP
Case forte (2v0)
bP
bN
bN
bP
bP
bP
bP
bP
bP
bP
bR
bB
bK
bQ
bB
bR
hgfedcba
Avantages : case forte b4, case forte d4, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 4 pièces non développées (C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Bd6 — Développer Bf8
● ...Bg4 — Clouer Nf3
● ...d5 — Rupture
Avantages
Faiblesses adverses
Diagonale active
Plans

Structure de pions
A35j —
1.c4 c5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3
Eval: [+0.28]
Les coups candidats
4…g6 — 49.2% (5449 parties)
Ambassadeurs : Macieja, Bartlomiej (25x), Uhlmann, Wolfgang (20x), Arkell, Keith C (19x), Farago, Sandor (16x), Suba, Mihai (14x), Vetter, Udo (13x), Espig, Lutz (13x), Helmer, Janos (12x)
Ambassadeurs : Farago, Ivan (33x), Sax, Gyula (21x), Timman, Jan H (21x), Uhlmann, Wolfgang (16x), Leko, Peter (16x), Ribli, Zoltan (15x), Kramnik, Vladimir (14x), Espig, Lutz (13x)
Ambassadeurs : Parma, Bruno (15x), Rogulj, Branko (8x), Saint-Amand, Paul (6x), Uhlmann, Wolfgang (5x), Vecek, Marjan (5x), Cruz Ramirez, Eliecer (5x), Plaskett, H James (4x), Da Silva Filho, Alcindo Luz Bastos (4x)
4…e5 — 5.1% (566 parties)
Ambassadeurs : Schubert, Steffen (6x), Kolanek, Roman (6x), Sereni, Vincent T. (6x), Dehaybe, Andre (5x), Foulds, E. V.. (3x), Miezis, Normunds (3x), Bernal Varela, Nelson (3x), Lim, Steve (3x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…g6 4…d5 4…e6 4…e5
<1800 361 57% 12% 15% 5%
1800-2200 3606 54% 21% 11% 7%
2200-2600 4697 45% 38% 8% 5%
2600+ 464 30% 58% 4% 1%
Évolution par décennie (% des parties)
Décennie N parties 4…g6 4…d5 4…e6 4…e5
1920s 9 89% 11%
1930s 9 56% 11% 11%
1940s 4 25% 50%
1950s 15 60% 40%
1960s 90 68% 22% 6% 1%
1970s 251 51% 24% 18% 2%
1980s 463 44% 36% 12% 3%
1990s 1887 52% 29% 10% 2%
2000s 2874 52% 24% 11% 4%
2010s 4182 50% 26% 8% 8%
2020s 1285 35% 45% 11% 5%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…g6 50% 35% ▼ -15.8%
4…d5 26% 45% ▲ +19.0%
4…e6 8% 11% ▲ +3.3%
4…e5 8% 5% ▼ -3.3%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 10 parties
Ding, Liren — 10 parties
Carlsen, Magnus — 8 parties
Tal, Mikhail — 7 parties
Smyslov, Vladimir — 5 parties
Hou, Yifan — 3 parties
Karpov, Aleksandr — 2 parties
Kasparov, Garry — 2 parties
Ju, Wenjun — 2 parties
Karpov, Anatoly — 1 partie
Gukesh D — 1 partie
Parties historiques
4…g6 — 49.2% (5449 parties)
1924 — Maroczy, Geza vs Exner, Gyozo — 1-0 — Gyor
1927 — Lokvenc, Josef vs Beutum, Sigmund — 1-0 — Vienna AUT
1927 — Krueger, Paul vs Hilse, Wilhelm H — 0-1 — Bremen GER
1927 — Regedzinski, Teodor vs Jakob, Adorjan — 1/2-1/2 — Kecskemet II
1928 — Giersing, Johannes H vs Gemzoe, Jacob — 0-1 — Horsens
4…d5 — 28.7% (3181 parties)
1938 — Weil, Wolfgang vs Eisinger Max — 0-1 — Bad Oeynhausen GER
1943 — Dorazil W vs Luncz — 1-0 — Vienna AUT
1948 — Hecker, Erwin vs ? — 1-0 — Altenbeken
1950 — Baad Schmidt, Noah vs O'Kelly de Galway, Alberic — 1-0 — Saarbruecken
1951 — Barcza, Gedeon vs Hajtun, Jozsef — 1-0 — Hungary ch
4…e6 — 9.8% (1080 parties)
1935 — Koshnitsky, Gregory vs Coultas, Walter F — 1-0 — Melbourne AUS
1960 — Rodriguez Gonzales, Jesus vs Kraidman, Yair — 1/2-1/2 — Leipzig GER
1962 — Portisch, Lajos vs Lengyel, Levente — 1/2-1/2 — Budapest HUN
1967 — Redolfi, Argentino Rodolfo vs Bronstein, Luis Marcos — 1-0 — Cordoba ARG
1969 — Sokolovic-Bertok, Semka vs Ljiljak, Milka — 1/2-1/2 — Pula CRO
4…e5 — 5.1% (566 parties)
1928 — Breuer, Jean-Paul vs Becker Morales, Felix Alexander — 0-1 — Deutsche Schachzeitung
1962 — Vaysman, Alexander vs Gufeld, Eduard — 0-1 — URS-ch30 sf Novosibirsk
1970 — Rego Villarejo, Francisco vs Bleiman, Yaacov — 0-1 — Siegen GER
1970 — Sarosy, Zoltan L vs O`Brien, Ray — 1-0 — Toronto CAN
1979 — Loginov, Valery A vs Klaman, Konstantin Mikhailovich — 0-1 — Leningrad RUS
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes ● f2→g3, h2→g3
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● b5 (2v0), ● d5 (2v1) ● b4 (2v0), ● d4 (2v1)
Cases faibles
Centre ● d5 (2v1) ● d4 (2v1)
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. 0)
Paire de fous ● Oui ● Oui
Non développées 4 (c1, f1, a1, h1) 4 (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 semi-ouvert
Ruptures ● d2-d3, ● e2-e3 ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5
Partie
1927 Trebitsch mem11 – Round 7 – Lokvenc, Josef – 1-0 – Beutum, Sigmund – G14
1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Bg2 O-O 8. Nc2 b6 9. O-O Bb7 10. e4 Na5
1945 Hastings4546 – Round 6 – Christoffel, Martin – 0-1 – Mieses, Jacques – G30
1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 b6 5. d4 cxd4 6. Nxd4 Nxd4 7. Qxd4 Bb7 8. e4 g6 9. Bg2 Bg7 10. O-O O-O
1962 Athens simul 1 – Round 1.16 – O'Kelly de Galway, Alberic – 1-0 – Denegris, A. – G7
1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. g3 b6 5. Bg2 Bb7 6. O-O d6 7. b3 g6 8. Bb2 Bg7 9. d4 cxd4 10. Nxd4 Rc8
1962 URS-ch30 sf Novosibirsk – Round 4 – Vaysman, Alexander – 0-1 – Gufeld, Eduard – G6
1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 e5 5. d3 Be7 6. Bg2 O-O 7. O-O d6 8. a3 a6 9. Ne1 Rb8 10. Nc2 Nd4
1962 Vrnjacka Banja – Round 10 – Sofrevski, Jovan – 0-1 – Parma, Brigitte – G99
1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 g6 5. b3 Bg7 6. Bb2 O-O 7. Bg2 d6 8. O-O Bg4 9. h3 Bf5 10. e3 Nb4
1964 7. It Sarajevo BIH – Round 9 – Polugaevsky, Lev – 1-0 – Damjanovic, Mato – G5
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. b3 Bg7 6. Bb2 O-O 7. Bg2 d6 8. O-O Ne8 9. e3 Bf5 10. d4 Qc8
1968 CSR Team Ch Harrachov – Round 7 – Janata, Michael – 1-0 – Stulik, Vlastimil – G28
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 b6 5. Bg2 Bb7 6. O-O e6 7. d4 Nxd4 8. Nxd4 Bxg2 9. Kxg2 cxd4 10. Qxd4 Qc8
41. Olympiad Open 2014 – Round 9.28 – Caruana, Fabiano – 1-0 – Banikas, Hristos – G645
1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 b6 5. d4 cxd4 6. Nxd4 Nxd4 7. Qxd4 Bb7 8. e4 g6 9. Bg2 Bg7 10. O-O d6
75. Tata Steel GpA 2013 – Round 9.6 – L'Ami, Erwin – 1/2-1/2 – Aronian, Levon – G46
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 d6 5. d4 cxd4 6. Nxd4 Bd7 7. Bg2 g6 8. O-O Bg7 9. e3 h5 10. b3 h4
Amber Rapid 2008 – Round 8 – Kramnik, Vladimir – 1/2-1/2 – Ivanchuk, Vasyl – G35
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. d4 cxd4 6. Nxd4 d6 7. Bg2 Bd7 8. Nxc6 Bxc6 9. e4 Bg7 10. Be3 O-O
AZE vs World Rapid 2009 – Round 1 – Kramnik, Vladimir – 1/2-1/2 – Gashimov, Vugar – G4
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 d6 6. a3 Bg7 7. Rb1 O-O 8. b4 cxb4 9. axb4 d5 10. b5 Na5
FIDE Grand Swiss 2025 – Round 7 – Daneshvar Bardiya – 1-0 – Muradli Mahammad – G404
1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 g6 5. d4 cxd4 6. Nxd4 d6 7. Bg2 Bd7 8. Nc2 Bg7 9. b3 Qc8 10. h3 O-O
FIDE World Blitz Championship 2014 – Round 7.8 – Meier, Georg – 1-0 – Vitiugov, Nikita – G57
1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 d6 5. Bg2 g6 6. d4 cxd4 7. Nxd4 Bd7 8. b3 Bg7 9. Bb2 Qc8 10. Rc1 Bh3
Interpolis 1979 – Round 6 – Larsen, Bent – 0-1 – Sosonko, Gennadi – G24
1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 g6 5. Bg2 d5 6. cxd5 Nxd5 7. h4 h6 8. d3 Bg7 9. Bd2 Be6 10. Rc1 Rc8
Melody Amber, Blindfold, Monaco 1995 – Round 3 – Kramnik, Vladimir – 1/2-1/2 – Kamsky, Gata – G13
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 d6 6. d4 cxd4 7. Nxd4 Bd7 8. e4 Bg7 9. Nxc6 Bxc6 10. Be3 O-O
Olympiad 2002 – Round 14 – Schandorff, Lars – 1/2-1/2 – Baklan, Vladimir – G511
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 d6 6. d4 cxd4 7. Nxd4 Bd7 8. Nxc6 Bxc6 9. e4 Bg7 10. Be3 O-O
Piterenka Rapid 2012 – Round 5 – Nepomniachtchi, Ian – 1/2-1/2 – Jakovenko, Dmitry – G8
1. c4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 g6 5. d4 cxd4 6. Nxd4 d6 7. Bg2 Bd7 8. O-O Bg7 9. e3 Qc8 10. b3 Bh3
Saint Louis Blitz 2023 – Round 9.1 – Robson, Ray – 1/2-1/2 – Le, Quang Liem – G41
1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 g6 5. d4 cxd4 6. Nxd4 d6 7. Bg2 Bd7 8. b3 Bg7 9. Bb2 O-O 10. O-O Rc8
World Blitz 2015 – Round 9.28 – Fressinet, Laurent – 1/2-1/2 – Borisek, Jure – G546
1. Nf3 c5 2. c4 Nf6 3. g3 Nc6 4. Nc3 g6 5. Bg2 d6 6. d4 cxd4 7. Nxd4 Bd7 8. Nc2 Bg7 9. b3 O-O 10. Bb2 a6
World Blitz 2018 – Round 12.31 – Jakovenko, Dmitry – 1-0 – Vokhidov, Shamsiddin – G715
1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 d5 6. d4 Bg7 7. O-O dxc4 8. d5 Nb4 9. Ne1 e6 10. e4 exd5
World Rapid 2019 – Round 15.7 – Grischuk, Alexander – 1/2-1/2 – Alekseev, Evgeny – G998
1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 d6 5. Bg2 g6 6. d4 cxd4 7. Nxd4 Bd7 8. Nc2 Bg7 9. b3 h5 10. Bb2 h4

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