Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	—
Passés	—	—
Majorité	—	—

Cases

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

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 2)
Bc5		● Bc5 Actif (mob. 9)
Bc8		● Bc8 Non développé (mob. 0)
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	mobile
Ruptures	● d2-d4, ● f2-f4	● …d7-d5

A22j — English: Bremen, 3…Bc5

1.c4 e5 2.Nc3 Nf6 3.g3 Bc5 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bg2 (Fianchetto, fou sur la grande diagonale — 95 % des parties) ; Nf3 (Développer g1 — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...O-O (Mettre le roi en sécurité, connecter les tours — 48 % des parties) ; ...Nc6 (Développer b8 — 22 % des parties) ; ...d6 (Libérer Bc8 — 17 % des parties) ; ...c6 (Renforcer le centre — 9 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
19. European Teams 2013 – Round 4.4 – Petrosian, Tigran L. – 0-1 – Fedorchuk, Sergey A. – G151 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. e3 d6 6. Nge2 a6 7. O-O Nc6 8. d4 exd4 9. Nxd4 Nxd4 10. exd4 Ba7
1925 Moscow – Round 1 – Rabinovich, Ilya Mar – 0-1 – Bogoljubow, Efim – G4 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. Nf3 e4 6. Ng1 Re8 7. Nh3 c6 8. d4 exd3 9. Qxd3 d6 10. Bf4 Nbd7
1929 Paris – Round ? – Schwarzmann, L. – 1/2-1/2 – Colle, Edgar – G46 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Nc6 6. Nge2 Re8 7. a3 a5 8. O-O d6 9. d4 exd4 10. exd4 Ba7
1929 Paris – Round 2 – Schwarzmann, Leon – 1/2-1/2 – Colle, Edgar – G7 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Nc6 6. Nge2 Re8 7. a3 a5 8. O-O d6 9. d4 exd4 10. exd4 Ba7
1934 Trebitsch mem17 – Round 11 – Mueller, Hans – 1-0 – Gerschenkron, Anatol – G21 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. d3 d6 6. Nf3 Nbd7 7. O-O c6 8. b3 Re8 9. Bb2 Bb6 10. Rc1 Nf8
1935 Konstantinovy Lazne – Round 2 – Pitschak, Rudolf – 0-1 – Gilg, Karl – G3 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. e3 c6 6. d4 exd4 7. exd4 Bb4 8. Ne2 d5 9. cxd5 Nxd5 10. O-O Be6
1937 Stockholm ol – Round 7 – Ozols, Karlis – 1-0 – Reid, Alan – G39 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 d6 5. e3 Nc6 6. Nge2 Be6 7. Nd5 Nb4 8. Nxb4 1-0
1939 Stuttgart – Round 11 – Grob, Henry – 1-0 – Staldi, Cherubino – G61 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 d6 5. d3 h6 6. Nf3 O-O 7. Bd2 a6 8. a3 Ba7 9. Qc1 Ng4 10. Nd1 f5
1952 Hungary Ch – Round 7 – Florian, Tibor – 1-0 – Bakonyi, Elek – G9 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Qc2 Nc6 7. Nge2 d6 8. O-O Bg4 9. a3 a5 10. h3 Bh5
1952 Miedzyzdroje – Round 12 – Plater, Kazimierz – 1/2-1/2 – Bakonyi, Elek – G73 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. Nf3 e4 6. Ng1 Re8 7. h4 Nc6 8. Nh3 d6 9. O-O Bf5 10. Nf4 Nd4
1954 Bucharest – Round 2 – Korchnoi, Viktor – 1-0 – Szabo, Stefan – G26 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Nc6 7. O-O d6 8. d4 Bb6 9. h3 Bf5 10. d5 Nb8
1956 Leningrad ch-URS – Round 10 – Taimanov, Mark E – 1-0 – Simagin, Vladimir – G134 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Nc6 7. O-O Bf8 8. d3 d6 9. a3 Bd7 10. h3 Qc8
1959 Lima – Round 1 – Letelier Martner, Rene – 1-0 – Alvarez Espinoza, Crishopher Damian – G1 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 d6 5. e3 O-O 6. Nge2 Nc6 7. O-O Bg4 8. h3 Bd7 9. d4 Bb6 10. a3 a5
1959 Zuerich – Round 1 – Olafsson, Fridrik – 1-0 – Keller, Dieter – G4 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. e3 c6 6. Nge2 Bb6 7. d4 d6 8. O-O Re8 9. b3 Nbd7 10. Ba3 Nf8
1961 Moskou ZShK – Round 8 – Rabar, Braslav – 1/2-1/2 – Bisguier, Arthur B – G37 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Nc6 7. O-O e4 8. d3 exd3 9. Nf4 d6 10. Nxd3 Bb6
1962 Capablanca Memorial – Round 9 – Milev, Zdravko – 1/2-1/2 – Siero, Lucas – G81 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 c6 5. d3 Ng4 6. e3 f5 7. Nf3 Qf6 8. h3 Nh6 9. d4 Bd6 10. dxe5 Bxe5
1962 Copenhagen – Round 1 – Nielsen, Axel – 1/2-1/2 – Soby, Frode – G3 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 c6 5. e3 O-O 6. Nge2 d5 7. cxd5 cxd5 8. d4 exd4 9. exd4 Bb4 10. O-O Bg4
1962 CSR Ch – Round 15 – Kozma, Julius – 0-1 – Kupka, Slavoj – G124 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Nc6 7. a3 a5 8. O-O d6 9. d4 exd4 10. exd4 Bb6
1964 CSR Ch – Round 1 – Ujtelky, Maximilian – 1/2-1/2 – Seifert, Milan – G1 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Nc6 7. O-O e4 8. a3 d6 9. Qc2 Bg4 10. Nf4 Bf3
1966 La Habana olm prel – Round 2 – Colon Romero, Arturo – 0-1 – Ojanen, Kaarle S – G42 1. c4 Nf6 2. Nc3 e5 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Bf8 7. d4 exd4 8. exd4 Nc6 9. O-O g6 10. a3 Bg7
1966 La Habana olm prel – Round 4 – Tenorio, Arnoldo – 0-1 – Ojanen, Kaarle S – G121 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Bf8 7. O-O Nc6 8. d4 exd4 9. Nxd4 Ne5 10. b3 c6
1967 Capablanca Memorial – Round 2 – Abreu Rodriguez, Juan Luis – 1/2-1/2 – Westerinen, Heikki M.J. – G13 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. d3 Bf8 7. Nge2 d6 8. O-O g6 9. b3 Bg7 10. Bb2 Nbd7
1967 Halle zt – Round 3 – Hort, Alex – 1/2-1/2 – Westerinen, Heikki M.J. – G12 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 Re8 6. Nge2 Bf8 7. O-O g6 8. d3 Bg7 9. b4 d6 10. Rb1 Nbd7
1968 YUG Ch 23th – Round 11 – Bertok, Mario Jr. – 1/2-1/2 – Puc, Stojan – G55 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 c6 6. Nge2 d6 7. d4 Bb6 8. O-O Bg4 9. h3 Be6 10. b3 Qc8
FIDE World Cup 2019 – Round 1.3 – Bu, Xiangzhi – 1/2-1/2 – Xu, Xiangyu – G129 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 O-O 5. e3 c6 6. Nge2 d5 7. cxd5 Nxd5 8. O-O Be6 9. d4 exd4 10. Ne4 Bb6

A22j — Bremen (1925)

1.c4 e5 2.Nc3 Nf6 3.g3 Bc5

Les coups candidats

4.Bg2 — 88.3% (2384 parties)

Ambassadeurs : Fedorchuk, Sergey A. (8x), Tobisch, Jasmin (4x), Lehmann, Antje (4x), Asbury, Victor (4x), Van Oosterom, Chiel (4x), Weyerstrass, Ronald (3x), Becker, Allen (3x), Motley, Gisele (3x)

4.e3 — 7.3% (196 parties)

Ambassadeurs : Bardacheva, Anna (3x), Molina, Vicente Andres (3x), Damji, Jules (2x), Zarco Cebrian, Antonio (1x), Radhy, Sol (1x), Finegold, Mark (1x), Moody, David W (1x), Divyendra Naidu (1x)

4.Nf3 — 2.8% (76 parties)

Ambassadeurs : Hughes, Anthony (2x), Hynes, Anthony M (1x), Donne, Pol (1x), Gelfer, Israel (1x), Manievich, Victor (1x), Bernhard, Wolfram (1x), Martin, Christian William (1x), Smith, Warren (1x)

4.d3 — 0.7% (18 parties)

Ambassadeurs : Murphy, Benjamin (1x), O`Reilly, Steven (1x), Lundgren, John (1x), Anitej Saraf (1x), Habibi, Ali (1x), Stovring, Claus (1x), Morici, Marco (1x), Fioravanti, Emidio (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4.Bg2	4.e3	4.Nf3	4.d3
<1800	472	81%	12%	3%	1%
1800-2200	1130	91%	6%	3%	0%
2200-2600	249	95%	1%	3%	0%
2600+	8	88%	—	—	12%

Évolution par décennie (% des parties)

Décennie	N parties	4.Bg2	4.e3	4.Nf3	4.d3
1950s	12	100%	—	—	—
1960s	29	97%	—	3%	—
1970s	21	90%	5%	5%	—
1980s	55	95%	4%	—	—
1990s	478	90%	7%	2%	0%
2000s	849	87%	9%	2%	1%
2010s	1010	88%	7%	4%	1%
2020s	246	88%	4%	4%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4.Bg2	88%	88%	-0.3%
4.e3	7%	4%	▼ -2.8%
4.Nf3	4%	4%	▲ +0.5%
4.d3	1%	1%	+0.2%

Parties historiques

4.Bg2 — 88.3% (2384 parties)

1950 — Rudenko, Ludmila vs Rubtsova, Olga — 1-0 — Moscow RUS
1951 — Lutikov, Anatoly S vs Kotov, Alexander — 1-0 — Ivanovo
1951 — Gondim, Jose Adail vs Salamuni R — 1/2-1/2 — Fortaleza BRA
1952 — Florian, Tibor vs Bakonyi, Elek — 1-0 — Hungary ch
1952 — Partyka, Kazimierz vs Bakonyi, Elek — 1/2-1/2 — Miedzyzdroje

4.e3 — 7.3% (196 parties)

1978 — Zarco Cebrian, Antonio vs Radhy, Sol — 1-0 — Buenos Aires ARG
1980 — Finegold, Mark vs Moody, David W — 1-0 — ?
1986 — Divyendra Naidu vs Sasaki, Katsumi — 0-1 — Dubai UAE
1990 — O'Siochru, Mairead vs Zeko Rose — 1-0 — Novi Sad SRB
1990 — Wall, Bill vs Damji, Jules — 1-0 — ?

4.Nf3 — 2.8% (76 parties)

1968 — Hynes, Anthony M vs Donne, Pol — 1-0 — Lugano olm
1976 — Gelfer, Israel vs Manievich, Victor — 1/2-1/2 — Israel ch-ISR
1991 — Smith, Warren vs Stinson, D. — 1-0 — Detroit Motor City op
1992 — Vetter, Gerhard vs Steen, Jan Peter — 0-1 — Kiel GER
1996 — Bardas, Stefan-Dragos vs Akali, Mark — 0-1 — ?

4.d3 — 0.7% (18 parties)

1995 — Murphy, Benjamin vs O`Reilly, Steven — 0-1 — Australia jr op
1999 — Lundgren, John vs Anitej Saraf — 0-1 — ?
2000 — Morici, Marco vs Fioravanti, Emidio — 1-0 — Porto Sant Elpidio
2000 — Mejzlik, Vojtech vs Vanek, Tomas — 0-1 — Chudenice
2002 — Michael Mbici Waweru vs Wolff, Sara — 1-0 — ?

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