Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● c4, ● c7
Pions isolés	—	—
Arriérés	—	—
Chaînes	● f2→g3, h2→g3	● f7→e6
Passés	—	—
Majorité	—	● aile dame 4v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● c5 (2v0), ● d5 (2v0)
Cases faibles	—	—
Centre	● d4 (1v0)	● d5 (2v0), ● e4 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bg2	● Bg2 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Clouages	—	● knight d7
Non développées	3 (● b1, ● c1, ● a1)	4 (● c8, ● f8, ● a8, ● h8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● d2-d3	● …c4-c3

A13v — English: Neo-Catalan Accepted, 5.Qa4+ Nbd7 6.O-O

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Qa4+ Nbd7 6.O-O ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Qxc4 (Centraliser la dame — 92 % des parties) ; Nc3 (Développer b1 — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...a6 (Préparer expansion aile dame — 72 % des parties) ; ...c5 (Frapper le centre adverse — 18 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1925 Marienbad – Round 11 – De La Torre Huertas, Carlos – 1/2-1/2 – Tartakower, Savielly – G73 1. Nf3 d5 2. c4 e6 3. g3 dxc4 4. Bg2 Nd7 5. Qa4 Nf6 6. O-O Be7 7. Na3 O-O 8. Nxc4 c5 9. d3 a6 10. Nce5 Bd6
1927 Homburg – Round 1 – Reti, Richard – 0-1 – Bogoljubow, Efim – G5 1. Nf3 d5 2. c4 e6 3. g3 dxc4 4. Qa4+ Nd7 5. Bg2 Nf6 6. O-O Bd6 7. Na3 Bxa3 8. bxa3 O-O 9. Qxc4 Nb6 10. Qc2 Bd7
1928 Vienna – Round 3 – Reti, Richard – 1/2-1/2 – Gruenfeld, Ernst – G27 1. c4 e6 2. Nf3 d5 3. g3 dxc4 4. Qa4+ Nd7 5. Bg2 Nf6 6. O-O Be7 7. Qxc4 c5 8. b3 a6 9. Qc2 Nd5 10. Bb2 Bf6
1933 Folkestone ol (Men) – Round 14.4 – Nielsen, Julius – 0-1 – ? – G10 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Nbd7 5. O-O dxc4 6. Qa4 Bd6 7. Qxc4 O-O 8. d4 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5
1939 Stuttgart – Round 3 – Bogoljubow, Efim – 1-0 – Hess, Thomas – G16 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Qxc4 b5 8. Qc6 Rb8 9. Qc2 c5 10. b3 Bb7
1941 Absolute Championship – Round 2 – Smyslov, Vladimir – 1/2-1/2 – Bondarevsky, Igor – G6 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 b4 10. a5 Be7
1944 Brno ch CZE – Round 12 – Katetov, Miroslav – 0-1 – Foltys, Jan – G19 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O Bd6 7. Qxc4 e5 8. d4 O-O 9. dxe5 Nxe5 10. Nxe5 Bxe5
1948 South Fallsburg ch-USA – Round 1 – Steiner, Heinrich Jun. – 1/2-1/2 – Shainswit, George – G144 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. b3 c5 10. Bb2 Rc8
1949 AUT-CSR Vienna AUT – Round 1 – Foltys, Jan – 1/2-1/2 – Lokvenc, Josef – G6 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O c6 7. Qxc4 Bd6 8. Nc3 e5 9. d3 O-O 10. b4 Nb6
1949 URSS (URS Ch, semi final) - Round 1 - Kopaev, Nikolay A - 1/2-1/2 - Bannik, Anatolij - G1 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Nc3 Rb8 8. Qxc4 Be7 9. a4 O-O 10. d4 Nb6
1950 Budapest (HUN-ch06) - Round 1 - Koberl, Ferenc - 0-1 - Szily, Jozsef - G8 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. axb5 axb5
1951 Marianske Lazne zt – Round 1 – Barcza, Gedeon – 1/2-1/2 – Benko, Pal – G5 1. c4 e6 2. g3 d5 3. Bg2 dxc4 4. Qa4+ Nd7 5. Nf3 Nf6 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. b3 c5 10. Bb2 Be7
1952 Budapest – Round 2 – Smyslov, Vladimir – 1/2-1/2 – Szily, Jozsef – G20 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Nbd7 5. O-O dxc4 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. axb5 axb5
1955 Prague (CSR Ch) - Round 14 - Pithart, Frantisek - 1/2-1/2 - Betak Miroslav - G106 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O Be7 7. Qxc4 c5 8. b3 O-O 9. Bb2 Nd5 10. d4 N7b6
1956 Marianske Lazne/Praha – Round 16 – Pithart, Frantisek – 1-0 – Uhlmann, Wolfgang – G45 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Nc3 Be7 8. Qxc4 c5 9. d3 O-O 10. a4 b6
1956 Moscow olm prel – Round 7 – Larsen, Benjamin Holsko – 1-0 – Prins, Laura – G242 1. Nf3 Nf6 2. g3 d5 3. Bg2 Nbd7 4. c4 dxc4 5. Qa4 e6 6. O-O Be7 7. Qxc4 c5 8. d4 O-O 9. Rd1 a6 10. Qc2 Ra7
1957 Bratislava Bratislava SVK – Round 7 – Sandor, Bela – 1/2-1/2 – Sefc, Jan – G29 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 c5 8. Qc2 b5 9. a4 Bb7 10. axb5 axb5
1957 FRG Ch Bad Neuenahr – Round 6 – Lehmann, Heinz – 1-0 – Flad – G17 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. axb5 axb5
1958 Sarajevo ch YUG – Round 6 – Sofrevski, Jovan – 1/2-1/2 – Karaklajic, Nikolas – G8 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 c5 8. Qc2 b6 9. Nc3 Bb7 10. Rd1 Rc8
1958 Sofia (BUL Ch) - Round ? - Filchev, Rusko - 1-0 - Padevsky, Nikola - G7 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. axb5 axb5
1961 Clare Benedict Cup 08th – Round 3.1 – Langeweg, Kick – 1-0 – Bialas, Wolfram – G20 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 c5 8. Qc2 Qc7 9. d4 b6 10. Bf4 Bd6
1962 Vrnjacka Banja – Round 1 – Rabar, Braslav – 0-1 – Karaklajic, Nikola – G3 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. O-O Be7 7. Qxc4 O-O 8. d4 c5 9. dxc5 Bxc5 10. Nc3 a6
1963 Glucholazy (POL Ch 20th) - Round 9 - Plater, Kazimierz - 1-0 - Gadalinski, Jan - G53 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O c5 7. Qxc4 a6 8. Qc2 Bd6 9. a4 O-O 10. Na3 Nb6
1965 Leipzig Inter-1 – Round 10 – Pietzsch, Wolfgang – 1/2-1/2 – Hennings, Artur – G40 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Nbd7 5. c4 dxc4 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. axb5 axb5
1965 Novi Sad – Round 1 – Bertok, Mario Jr. – 1/2-1/2 – Ciric, Dragoljub M – G3 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. d3 Bd6
1966 Moscow (URS Team Ch) - Round ? - Geller, Efim P - 1-0 - Chernikov, Oleg L - G135 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Qxc4 c5 8. Qc2 e5 9. Na3 Bd6 10. Nc4 Bc7
1968 Cardenas/Matanzas/Santa Clara – Round 13 – Jimenez Zerquera, Eleazar – 1/2-1/2 – Letelier Martner, Rene – G68 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. c4 dxc4 5. O-O Nbd7 6. Qa4 Be7 7. Na3 O-O 8. Nxc4 c5 9. d3 Nd5 10. a3 a6
1968 Hoogovens – Round 9 – Tal, Mikhail – 1/2-1/2 – Karaklajic, Nikola – G82 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. O-O Nbd7 6. Qa4 Be7 7. Qxc4 O-O 8. d4 c5 9. Rd1 a6 10. Qc2 Ra7
1969 Budapest ch-HUN – Round 1 – Adorjan, Andras – 0-1 – Csom, Istvan – G9 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Nbd7 5. O-O dxc4 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 c5 10. axb5 axb5
1969 Hoogovens – Round 11 – Lombardy, William J – 1/2-1/2 – Olafsson, Fridrik – G90 1. g3 Nf6 2. c4 e6 3. Nf3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 Be7 10. axb5 axb5
1969 Moscow – Round 1 – Ignatiev, Felix N – 1-0 – Murey, Jacob – G2 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. a4 Bd6 10. Nc3 b4
1972 San Antonio – Round 1 – Suttles, Duncan – 1/2-1/2 – Keres, Paul – G9 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Nc3 c5 8. Ne5 Rb8 9. Nxd7 Qxd7 10. Qxc4 b5
1972 San Antonio – Round 7 – Suttles, Duncan – 1/2-1/2 – Keres, Paul – G8 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Nc3 c5 8. Ne5 Rb8 9. Nxd7 Qxd7 10. Qxc4 b5
1975 Riga (URS Team Ch) - Round 1 - Tukmakov, Vladimir B - 1/2-1/2 - Balashov, Yuri S - G30 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. b3 c5 10. Bb2 Be7
1975 Riga (URS Team Ch) - Round 4 - Mochalov, Evgeny V - 1/2-1/2 - Taimanov, Mark E - G561 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc6 Rb8 9. Qc2 Bb7 10. d3 Be7
Interpolis 1985 – Round 1 – Miles, Anthony J – 1-0 – Timman, Jan H – G35 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 c5 8. Qb3 Bd6 9. a4 O-O 10. Na3 Nb8
Linares 1981 – Round 1 – Quinteros, Miguel Angel – 0-1 – Portisch, Lajos – G22 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. d4 c5 10. e3 Rc8
Manila Interzonal 1990 – Round 10 – Damljanovic, Branko – 1/2-1/2 – Korchnoi, Viktor – G175 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. d3 c5 10. b3 Be7
Mar del Plata 1982 – Round 1 – Najdorf, Miguel – 1/2-1/2 – Polugaevsky, Lev – G55 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O c5 7. Qxc4 b6 8. b3 Bb7 9. Bb2 Be7 10. Qc2 O-O
SuperUnited Blitz 2023 – Round 18.4 – Firouzja, Alireza – 1-0 – Duda, Jacob – G89 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Nc3 c5 8. Rd1 Be7 9. Qxc4 b5 10. Qb3 Bb7
Tilburg NED 1983 – Round 1 – Karpov, Anatoly – 1/2-1/2 – Ljubojevic, Ljubomir – G1 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O c5 7. Qxc4 b6 8. d4 Bb7 9. Nc3 a6 10. dxc5 b5
World Blitz 2017 – Round 7.22 – Howell, David W L – 1/2-1/2 – Melkumyan, Hrant – G353 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. O-O Nbd7 6. Qa4 a6 7. Qxc4 b5 8. Qc2 Bb7 9. d3 c5 10. Nc3 Be7

A13v — Neo-Catalan Accepted (1925)

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Qa4+ Nbd7 6.O-O

Les coups candidats

6…a6 — 72.5% (582 parties)

Ambassadeurs : Socko, Monika (4x), Raicevic, Vladimir (3x), Zak, Uriel (3x), Kucera, Petr (3x), Olafsson, Fridrik (3x), Bachmann, Axel (3x), Szily, Jozsef (2x), Lombardy, William J (2x)

6…c5 — 18.2% (146 parties)

Ambassadeurs : Spiridonov, Nikola (3x), Karpov, Anatoly (2x), Szymczak, Zbigniew (2x), Pountzas, Hrisanthos (2x), Karlsson, Lars 1937 (2x), Chkhaidze, Nikoloz (2x), Partyka, Kazimierz (1x), Gadalinski, Jan (1x)

6…Be7 — 4.9% (39 parties)

Ambassadeurs : Aadhitha Karikalan (3x), Tal, Mikhail (2x), Jimenez Zerquera, Eleazar (1x), Letelier Martner, Rene (1x), Parak, Frantisek (1x), Betak Miroslav (1x), Besser, Hans (1x), Goebel, Wolfgang (1x)

6…Bd6 — 1.7% (14 parties)

Ambassadeurs : Abramov, Roman (1x), Moehring, Guenther (1x), Helmers, Wim (1x), Patrick, David I (1x), Gerigk, Wolf (1x), Cygielman, M. (1x), Nilsson, Karl Erik (1x), Halldorsson, Steinar (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…a6	6…c5	6…Be7	6…Bd6
<1800	13	69%	—	15%	—
1800-2200	189	74%	12%	7%	4%
2200-2600	534	72%	22%	3%	0%
2600+	8	62%	38%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6…a6	6…c5	6…Be7	6…Bd6
1950s	12	83%	—	17%	—
1960s	19	63%	5%	26%	5%
1970s	39	74%	26%	—	—
1980s	74	55%	34%	7%	3%
1990s	126	71%	20%	3%	1%
2000s	175	70%	21%	4%	3%
2010s	265	77%	15%	5%	2%
2020s	93	81%	10%	4%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…a6	77%	81%	▲ +4.0%
6…c5	15%	10%	▼ -5.4%
6…Be7	5%	4%	-0.2%
6…Bd6	2%	0%	▼ -1.9%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 3 parties
Karpov, Anatoly — 2 parties
Botvinnik, Mikhail — 1 partie

Parties historiques

6…a6 — 72.5% (582 parties)

1950 — Koberl, Ferenc vs Szily, Jozsef — 0-1 — Budapest HUN
1951 — Anay Barche vs Benko, Pal — 1/2-1/2 — Marianske Lazne zt
1952 — Rojahn, Ernst vs Pogats, Jozsef Jr. — 0-1 — Helsinki FIN
1952 — Smyslov, Vasily vs Szily, Jozsef — 1/2-1/2 — Budapest HUN
1953 — Heinicke, Herbert vs Rodatz, Hans — 1-0 — Hamburg GER

6…c5 — 18.2% (146 parties)

1963 — Partyka, Kazimierz vs Gadalinski, Jan — 1-0 — Glucholazy
1976 — Grigoryan, Karen A. vs Dorfman, Iossif — 1/2-1/2 — Moscow RUS
1976 — Szymczak, Zbigniew vs Nowak, Ignacy — 1/2-1/2 — POL ch XXXIII
1976 — Palacios Lanza, Antonio vs Rooze, Jan — 0-1 — Haifa ISR
1977 — Lengyel, Levente vs Ribli, Zoltan — 1/2-1/2 — Budapest ch-HUN

6…Be7 — 4.9% (39 parties)

1955 — Parak, Frantisek vs Betak Miroslav — 1/2-1/2 — Prague CZE
1956 — Larsen, Bent Ravn vs Prins, Lodewijk — 1-0 — Moskou olm
1962 — Rabar, Braslav vs Aadhitha Karikalan — 0-1 — Vrnjacka Banja SRB
1966 — Besser, Hans vs Goebel, Wolfgang — 1/2-1/2 — Frankfurt GER
1968 — Jimenez Zerquera, Eleazar vs Letelier Martner, Rene — 1/2-1/2 — Santa Clara CUB

6…Bd6 — 1.7% (14 parties)

1967 — Abramov, Roman vs Moehring, Guenther — 1/2-1/2 — Berlin East
1981 — Helmers, Wim vs Patrick, David I — 1-0 — Gausdal NOR
1981 — Gerigk, Wolf vs Cygielman, M. — 0-1 — BL2-N 8081
1991 — Nilsson, Karl Erik vs Halldorsson, Steinar — 0-1 — ?
2005 — Lofgren, Ragna vs Jussupow, Ekaterina — 0-1 — Hockenheim GER