Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d5 (1v0), ● e5 (1v0)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 0)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 2)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● 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	● d2-d4	● …d7-d5

A30b — English: Symmetrical, 2.Nf3 g6

1.c4 c5 2.Nf3 g6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. d4 (Occuper le centre — 50 % des parties) ; g3 (Préparer le fianchetto — 20 % des parties) ; Nc3 (Développer b1 — 17 % des parties) ; e4 (Occuper le centre — 10 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bg7 (Fianchetto, fou sur la grande diagonale — 62 % des parties) ; ...Nc6 (Développer b8 — 4 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1904 DSB-14.Kongress Hauptturnier A – Round 12 – Gregory, Bernhard – 1-0 – Nimzowitsch, Aron – G8 1. c4 c5 2. Nf3 g6 3. e3 Bg7 4. d4 cxd4 5. exd4 Nf6 6. Nc3 O-O 7. Bg5 b6 8. Bd3 Bb7 9. O-O Na6 10. a3 Nc7
1935 Warsaw olm – Round 3 – Solin, Ilya – 0-1 – Trifunovic, Petar – G11 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Nc2 d6 7. Qd2 Nf6 8. e4 O-O 9. Be2 Be6 10. Rb1 Nd7
1952 URS Ch sf – Round ? – Levenfish, Grigory – 0-1 – Novotelnov, Nikolai – G3 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Nb3 d6 7. e4 f5 8. Bd3 Bxc3+ 9. bxc3 Nf6 10. exf5 Bxf5
1955 DDR Ch 06th – Round 3 – Franz, Joachim – 1-0 – Eising, Johannes – G14 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O e6 6. d3 Nge7 7. Bd2 Bxb2 8. Nc3 Bxa1 9. Qxa1 O-O 10. Ne4 f6
1957 Wenen etc – Round 1 – Pithart, Frantisek – 0-1 – Korchnoi, Viktor – G2 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. e3 Nf6 7. Be2 O-O 8. O-O d6 9. b3 Nxd4 10. exd4 d5
1958 Portoroz Interzonal – Round 19 – De Greif, Boris – 0-1 – Sanguineti, Raúl Carlos – G183 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 a6 6. Nc3 Rb8 7. a4 d6 8. O-O Nh6 9. Bd2 Nf5 10. Rb1 O-O
1959 York ch-BCF – Round 1 – Naylor, Jonathan – 1/2-1/2 – Wade, Robert G – G23 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nb5 Nf6 6. N5c3 b6 7. e4 Bb7 8. f3 O-O 9. Be2 e6 10. O-O d5
1959 Zuerich – Round 1 – Keres, Paul Petrovich – 1-0 – Kupper, Josef – G1 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Nc2 d6 7. g3 Be6 8. Ne3 Rc8 9. Bg2 Qd7 10. Bd2 Bh3
1959 Zurich – Round 1 – Blau, Max – 1/2-1/2 – Kupper, Josef – G6 1. Nf3 c5 2. c4 g6 3. e3 Bg7 4. d4 Nf6 5. Nc3 O-O 6. d5 d6 7. Be2 Na6 8. O-O Nc7 9. e4 a6 10. Re1 Rb8
1960 Nimzowitsch Memorial – Round 1 – Stahlberg, Gideon – 1-0 – Andersen, Borge – G1 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. e3 Nc6 6. Nc3 Nxd4 7. exd4 Nh6 8. Bxh6 Bxh6 9. Be2 O-O 10. O-O d6
1961 Baku ch-URS – Round 9 – Kots, Yuri I – 1/2-1/2 – Averbakh, Yuri L – G84 1. c4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O e6 6. e3 Nge7 7. d4 cxd4 8. Nxd4 d5 9. cxd5 exd5 10. Nc3 O-O
1961 Nykobing – Round 1 – Nielsen, Axel – 0-1 – Andersen, Borge – G4 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. e3 Nh6 7. Nde2 O-O 8. g3 Ne5 9. Nd4 d6 10. f4 Bg4
1961 URS Ch sf – Round ? – Nei, Iivo – 1/2-1/2 – Gurgenidze, Bukhuti – G3 1. c4 c5 2. Nf3 g6 3. e3 Bg7 4. d4 Nf6 5. Be2 O-O 6. O-O cxd4 7. exd4 d5 8. Nc3 Nc6 9. Bg5 Ne4 10. cxd5 Nxg5
1963 Enschede zt – Round 10 – Van Scheltinga, Theo – 1/2-1/2 – Kupper, Josef – G27 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. e3 Nf6 7. Be2 O-O 8. O-O b6 9. b3 Bb7 10. Bb2 d5
1965 Asztalos Memorial 8th – Round 8 – Forintos, Gyozo V – 1/2-1/2 – Flesch, Janos – G52 1. Nf3 c5 2. c4 g6 3. e3 Bg7 4. Nc3 Nf6 5. d4 cxd4 6. Nxd4 O-O 7. Nc2 b6 8. Be2 Bb7 9. O-O Ne4 10. Nxe4 Bxe4
1965 Buenos Aires – Round 9 – Panno, Oscar – 1-0 – Sanguineti, Raúl Carlos – G57 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bg7 6. Nc2 b6 7. Qd2 Bb7 8. e4 Rc8 9. Be2 Nf6 10. f3 O-O
1965 Copenhagen – Round 11 – Barcza, Gedeon – 1-0 – Ujtelky, Maximilian – G95 1. Nf3 g6 2. c4 c5 3. d4 cxd4 4. Nxd4 Bg7 5. e4 b6 6. Nc3 Bb7 7. Be2 d6 8. O-O Nf6 9. f3 Nc6 10. Nc2 Rc8
1965 FRG CupT – Round 3.2 – Kestler, Hans-Guenther – 0-1 – Eising, Johannes – G13 1. Nf3 g6 2. c4 c5 3. g3 Bg7 4. Bg2 Nc6 5. O-O a6 6. Nc3 Rb8 7. e3 d6 8. h3 Nf6 9. d4 O-O 10. dxc5 dxc5
1967 Capablanca Memorial – Round 13 – Barcza, Gedeon – 1/2-1/2 – Garcia Martinez, Salomon – G118 1. Nf3 c5 2. c4 g6 3. e3 Bg7 4. d4 Nf6 5. Nc3 O-O 6. Be2 b6 7. O-O Bb7 8. d5 d6 9. e4 Nbd7 10. Ne1 a6
1967 Capablanca Memorial – Round 7 – Cobo Arteaga, Eldis – 1/2-1/2 – Pachman, Ludek – G66 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O a6 6. Nc3 Rb8 7. a4 d6 8. d3 Nf6 9. Bd2 O-O 10. Ne1 Bd7
1968 Toth Memorial – Round 9 – Forintos, Gyozo V – 1/2-1/2 – Honfi, Karoly – G35 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. e3 Nf6 7. Be2 O-O 8. O-O d6 9. b3 Bd7 10. Bb2 a6
1969 Rubinstein Memorial – Round 1 – Adamski, Jan – 0-1 – Barczay, Laszlo – G22 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bg7 6. Nc2 Bxc3+ 7. bxc3 Qa5 8. Bd2 Nf6 9. f3 b6 10. e4 Bb7
1969 Rubinstein Memorial – Round 1 – Barczay, Laszlo – 1-0 – Popov, Luben – G21 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. g3 Bg7 6. Nc2 Nf6 7. Bg2 d6 8. Nc3 O-O 9. O-O Be6 10. b3 Qd7
1970 IBM – Round 1 – Langeweg, Kick – 1/2-1/2 – Csom, Istvan – G172 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. e4 d6 6. Be2 Nf6 7. Nc3 Nbd7 8. O-O O-O 9. Be3 a6 10. Qd2 Nc5
Reykjavik 1987 – Round nil – Tal, Mikhail – 1-0 – Petursson, Magnus V. – G45 1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc2 Nc6 6. g3 Nf6 7. Bg2 O-O 8. Nc3 d6 9. O-O Bd7 10. b3 a6
Roquebrune rapid 1992 – Round 2 – Speelman, Jon S – 1-0 – Polgar, Judit – G6 1. Nf3 c5 2. c4 g6 3. e3 Bg7 4. d4 Nf6 5. Nc3 O-O 6. Be2 cxd4 7. exd4 d5 8. O-O b6 9. Ne5 Bb7 10. Bf3 e6
Torino 1982 – Round 7 – Andersson, Ulf 1949 – 1/2-1/2 – Ljubojevic, Ljubomir – G18 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. e3 Nf6 7. Be2 Nxd4 8. exd4 d5 9. Bf4 dxc4 10. Bxc4 O-O
Turin ol (Men) 37th 2006 – Round 9 – Vallejo Pons, Francisco – 1/2-1/2 – Gashimov, Vugar – G120 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. e4 b6 6. Nc3 Bb7 7. Be2 Nf6 8. f3 O-O 9. O-O Nc6 10. Nc2 Rc8
World Blitz 2023 – Round 11.49 – Xue, Haowen(SZ) – 0-1 – Iturrizaga Bonelli, Eduardo – G653 1. c4 c5 2. Nf3 g6 3. e3 Bg7 4. d4 Nf6 5. Nc3 O-O 6. d5 e6 7. h3 exd5 8. cxd5 d6 9. Bd3 a6 10. a4 Nbd7

A30b — Symmetrical (1904)

1.c4 c5 2.Nf3 g6

Les coups candidats

3.d4 — 39.3% (4511 parties)

Ambassadeurs : Andersson, Ulf (36x), Adamski, Jan (29x), Espig, Lutz (28x), Sermek, Drazen (24x), Uhlmann, Wolfgang (24x), Velimirovic, Dragoljub (23x), Ivkov, Borislav (17x), Robatsch, Karl (16x)

3.g3 — 24.5% (2807 parties)

Ambassadeurs : Espig, Lutz (9x), McNab, Colin A (9x), Wojtkiewicz, Aleksander (8x), Gausel, Einar J (7x), Anay Barche (6x), Taimanov, Mark (6x), Lagunow, Alexander (6x), Keene, Raymond D (5x)

3.Nc3 — 21.7% (2496 parties) →

Ambassadeurs : Jurek, Josef (14x), Konopka, Michal (9x), Malich, Burkhard, Dr. (7x), Gheorghiu, Florin (6x), Stuermer, Martin (5x), Anay Barche (4x), Browne, Walter Shawn (4x), Espig, Lutz (4x)

3.e4 — 11.2% (1284 parties) →

Ambassadeurs : Suba, Mihai (15x), Vaganian, Rafael A (14x), Cvitan, Ognjen (13x), Arsovic, Zoran (13x), Fridman, Daniel (11x), Wojtkiewicz, Aleksander (10x), Cvetkovic, Srdjan (9x), Espig, Lutz (9x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3.d4	3.g3	3.Nc3	3.e4
<1800	377	25%	34%	31%	4%
1800-2200	3432	28%	32%	29%	8%
2200-2600	6597	46%	20%	18%	14%
2600+	215	60%	14%	5%	18%

Évolution par décennie (% des parties)

Décennie	N parties	3.d4	3.g3	3.Nc3	3.e4
1950s	28	43%	32%	18%	4%
1960s	232	40%	28%	25%	4%
1970s	626	57%	15%	15%	12%
1980s	652	50%	18%	16%	12%
1990s	1828	42%	25%	21%	9%
2000s	2993	40%	23%	23%	11%
2010s	3780	35%	28%	23%	11%
2020s	1341	33%	25%	21%	16%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3.d4	35%	33%	▼ -1.4%
3.g3	28%	25%	▼ -2.7%
3.Nc3	23%	21%	▼ -2.1%
3.e4	11%	16%	▲ +5.6%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Kramnik, Vladimir — 10 parties
Anand, Viswanathan — 9 parties
Hou, Yifan — 7 parties
Gukesh D — 5 parties
Botvinnik, Mikhail — 4 parties
Karpov, Anatoly — 4 parties
Carlsen, Magnus — 4 parties
Kasparov, Garry — 3 parties
Ju, Wenjun — 2 parties
Ding, Liren — 1 partie

Parties historiques

3.d4 — 39.3% (4511 parties)

1952 — Levenfish, Grigory vs Novotelnov, Nikolai — 0-1 — Sochi RUS
1957 — Conen, Friedrich vs Josting, Friedel — 0-1 — Brakel
1957 — Parak, Frantisek vs Korchnoi, Viktor — 0-1 — Wenen etc
1958 — Pachman, Ludek vs Sanguineti, Raúl Carlos — 1/2-1/2 — Portoroz izt
1958 — Petrosian, Tigran V. vs Sanguineti, Raúl Carlos — 1/2-1/2 — Portoroz izt

3.g3 — 24.5% (2807 parties)

1955 — Flesch, Janos vs Ivanfi, Kalman — 1-0 — Pecs
1955 — Franz, Joachim vs Eising, Johannes — 1-0 — Zwickau
1956 — Lisitsin, Georgy vs Khasin, Abram — 1/2-1/2 — Leningrad RUS
1958 — Raizman, Maurice vs Anay Barche — 0-1 — Munich GER
1958 — Portisch, Lajos vs Szabo, Laszlo — 1/2-1/2 — Balatonfured

3.Nc3 — 21.7% (2496 parties)

1955 — Parak, Frantisek vs Ujtelky, Maximilian — 1-0 — Prague CZE
1956 — Stahlberg, Gideon vs Miguel, Nahuel — 1/2-1/2 — Moscow RUS
1956 — Andrade Andrade, Mathias Benjamin vs Larsen, Bent Ravn — 0-1 — Moskou olm
1956 — Parak, Frantisek vs Holas, Josef — 1-0 — Podebrady CZE
1958 — Stoeckl, Ernst vs Bobotsov, Milko G — 1/2-1/2 — Munich GER

3.e4 — 11.2% (1284 parties)

1957 — Furman, Semyon vs Spassky, Boris V. — 0-1 — Moskou ch-URS
1962 — Korchnoi, Viktor vs Benko, Pal — 1/2-1/2 — Curacao ct
1965 — Speer, Albrecht vs Seppelt, Alfred — 1-0 — Detmold GER
1967 — O'Kelly, Albéric de Galway vs Matulovic, Milan — 1/2-1/2 — Palma de Majorca ESP
1967 — Lengyel, Levente vs Janetschek, Karl — 1-0 — Vesely HUN_AUT

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