A04c — Reti: 1…b6

1.Nf3 b6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : paire de fous.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 5 pièces non développées (B1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, libère Bf1
● Nbd2 — Développer Nb1
● d3 — Libérer Bc1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : paire de fous.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 6 pièces non développées (B8, G8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...Nf6 — Développer Ng8
● ...Bd6 — Développer Bf8

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A04c —

1.Nf3 b6

Eval: [+0.65]

Les coups candidats

2.g3 — 50.9% (2360 parties)

Ambassadeurs : Filipovic, Branko (17x), Bauer, Christian (15x), Kengis, Edvins (14x), Blatny, Pavel (11x), Speelman, Jon S (10x), Lovric, Branko (8x), Wunder, Horst (8x), Keene, Raymond D (7x)

2.e4 — 19.3% (895 parties)

Ambassadeurs : Gurgenidze, Bukhuti (8x), Shchekachev, Andrei (7x), Scherer, Max (6x), Czebe, Attila (6x), Gaujens, Artis (6x), Speelman, Jon S (5x), Kengis, Edvins (4x), Wohl, Aleksandar H (4x)

2.d4 — 13.5% (627 parties)

Ambassadeurs : Blatny, Pavel (5x), Polifka, Wilfried (3x), Speelman, Jon S (3x), Hamitevici, Vladimir (3x), Corbeill, Joe (2x), Petrosian, Arshak B (2x), Ciezki, Dale (2x), Gurgenidze, Bukhuti (2x)

2.c4 — 11.0% (511 parties) →

Ambassadeurs : Scherer, Max (6x), Heimrath, Reiner (4x), Vul, Arkadi Eremeevich (4x), Filipovic, Branko (4x), Werle, Jan (3x), Bauer, Christian (3x), Ammann, Philipp (2x), Kristiansen, Jens (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	2.g3	2.e4	2.d4	2.c4
<1800	259	47%	16%	17%	12%
1800-2200	1795	52%	18%	14%	11%
2200-2600	1656	54%	22%	11%	11%
2600+	68	51%	28%	7%	9%

Évolution par décennie (% des parties)

Décennie	N parties	2.g3	2.e4	2.d4	2.c4
1850s	2	100%	—	—	—
1880s	2	—	50%	—	—
1890s	2	—	—	100%	—
1920s	6	—	50%	17%	17%
1930s	5	40%	40%	20%	—
1940s	2	50%	50%	—	—
1950s	5	40%	60%	—	—
1960s	12	50%	33%	8%	8%
1970s	122	55%	23%	7%	11%
1980s	188	51%	20%	15%	10%
1990s	665	55%	16%	15%	10%
2000s	1370	50%	18%	14%	12%
2010s	1881	51%	20%	14%	11%
2020s	373	50%	24%	9%	11%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
2.g3	51%	50%	▼ -0.5%
2.e4	20%	24%	▲ +4.8%
2.d4	14%	9%	▼ -5.2%
2.c4	11%	11%	-0.1%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 5 parties
Hou, Yifan — 2 parties
Karpov, Anatoly — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

2.g3 — 50.9% (2360 parties)

1850 — Bonnerjee, Mohishunder vs Cochrane, John Miles — 1-0 — Calcutta IND
1850 — Bonnerjee, Mohishunder vs Cochrane, John Miles — 0-1 — Calcutta IND
1938 — Villegas, Benito vs Corte, Cesar J — 0-1 — Buenos Aires ARG
1938 — Kranki, Hans vs Engels, Ludwig — 0-1 — Bad Oeynhausen GER
1944 — Meyer, MO. vs Cartier, Hank — 1-0 — ?

2.e4 — 19.3% (895 parties)

1883 — Zannoni Fermo vs Cantoni, Filippo — 1-0 — Venice ITA
1924 — Guerra Boneo vs Fernandez Coria, Valentin — 1-0 — Buenos Aires ARG
1927 — Reti, Richard vs Nimzowitsch, Aron — 1/2-1/2 — London ENG
1927 — Porath, Yosef vs Reinhardt, Enrique — 1-0 — Magdeburg GER
1931 — Nogues Acuna, Alejandro vs Palau, Luis — 1-0 — ?

2.d4 — 13.5% (627 parties)

1893 — Jasnogrodsky, Nicolai vs Delmar, Eugene — 0-1 — New York, NY USA
1895 — Lipschuetz, Salomon vs Owen, John — 1/2-1/2 — England
1925 — Cs. Nagy, Gabor vs Prokes, Ladislav — 0-1 — Debrecen HUN
1938 — List, Paul vs Cole, Henry Holwell — 0-1 — Margate ENG
1964 — Capilla Murphy, Serena vs Quirate, Phillip — 1-0 — Oakland

2.c4 — 11.0% (511 parties)

1929 — Menchik, Vera Frantsevna vs Tartakower, Savielly — 0-1 — Carlsbad CZE
1960 — Hoxha, Abdyl vs Aloni, Itzchak — 0-1 — Leipzig GER
1970 — Toran Albero, Roman vs Bellon Lopez, Juan Manuel — 1/2-1/2 — Malaga ESP
1971 — Donnelly, Mike J Dr vs Hutchinson, Paul A — 1/2-1/2 — Blackpool ENG
1973 — Agur, Elieser vs Gross, Ernst — 1/2-1/2 — Netanya ISR

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● a7→b6, c7→b6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (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. 2)
Bf8		● Bf8 Non développé (mob. 0)
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	semi-ouvert
Ruptures	● c2-c3, ● d2-d3, ● e2-e3	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5, ● …f7-f6, ● …f7-f5

Partie
'It ' 2006 – Round 2 – Topalov, Veselin – 1/2-1/2 – Aronian, Levon – G1 1. Nf3 b6 2. g3 Bb7 3. Bg2 e5 4. c4 g6 5. Nc3 Bg7 6. O-O Nc6 7. Nd5 b5 8. Nd4 b4 9. Nf6+ 1/2-1/2
1927 Kecskemet f I – Round 1 – Ahues, Carl – 0-1 – Nimzowitsch, Aron – G4 1. Nf3 b6 2. e3 Bb7 3. b3 f5 4. Bb2 e6 5. Ne5 Nf6 6. f4 g6 7. c4 Bg7 8. Nc3 O-O 9. Qe2 d6 10. Nf3 Nbd7
1927 London – Round 1 – Reti, Richard – 1/2-1/2 – Nimzowitsch, Aron – G6 1. Nf3 b6 2. e4 Bb7 3. Bc4 e6 4. Qe2 Nf6 5. d3 d5 6. exd5 Nxd5 7. Bg5 Be7 8. Bxd5 Bxd5 9. Bxe7 Qxe7 10. Nc3 Bb7
1938 Argentina – Round 18 – Villegas, Benito – 0-1 – Corte, Cesar J – G47 1. Nf3 b6 2. g3 Bb7 3. Bg2 f5 4. O-O Nf6 5. c4 e6 6. d3 Be7 7. Nbd2 O-O 8. Qc2 Qe8 9. Ne1 Bxg2 10. Nxg2 Nc6
1938 Bad Oeynhausen – Round 1 – Kranki, Hans – 0-1 – Engels, Ludwig – G19 1. Nf3 b6 2. g3 Bb7 3. Bg2 e5 4. d3 g6 5. c3 Bg7 6. Qb3 Nc6 7. O-O Nge7 8. a4 O-O 9. Na3 d5 10. Nc2 h6
1942 Chocen NT – Round ? – Katetov, Miroslav – 1-0 – Dobias, Josef – G11 1. Nf3 b6 2. e4 Bb7 3. Nc3 c5 4. d4 g6 5. Be3 d6 6. Bc4 Nc6 7. Ng5 Nh6 8. d5 Ne5 9. Bb5+ Nd7 10. Ne6 fxe6
1962 Poznan ch POL – Round 10 – Gawlikowski, Stanislaw – 1-0 – Fabian Henryk – G64 1. Nf3 b6 2. e4 Bb7 3. Nc3 c5 4. Bc4 Nf6 5. e5 Ng8 6. d4 cxd4 7. Qxd4 e6 8. Bg5 f6 9. exf6 Nxf6 10. O-O-O Be7
1963 Asztalos Memorial 6th – Round 6 – Flesch, Janos – 1-0 – Barczay, Laszlo – G19 1. Nf3 b6 2. g3 Bb7 3. Bg2 e5 4. d3 Nf6 5. O-O d6 6. e4 Nbd7 7. c4 g6 8. Nc3 Bg7 9. Be3 O-O 10. Nh4 c6
1963 AUS Ch – Round 6 – Koshnitsky, Gregory – 1-0 – Kellner, John Vincent – G5 1. Nf3 b6 2. g3 Bb7 3. Bg2 f5 4. O-O Nf6 5. d4 e6 6. c4 d6 7. Nc3 Be7 8. Qc2 Qc8 9. d5 e5 10. Ng5 g6
1966 Tel Aviv 6th – Round 7 – Szilagyi, Gyorgy Laszlo – 1/2-1/2 – Aloni, Itzchak – G26 1. Nf3 b6 2. e4 Bb7 3. Nc3 e6 4. Bd3 Ne7 5. O-O Ng6 6. Re1 Be7 7. Bf1 O-O 8. d4 d5 9. exd5 exd5 10. Ne2 c5
41. Olympiad Open 2014 – Round 10.18 – Al-Sayed, Mohammed – 0-1 – Rozentalis, Eduardas – G704 1. Nf3 b6 2. e4 Bb7 3. Bd3 d6 4. O-O Nd7 5. Re1 Ngf6 6. c3 g6 7. Bc2 Bg7 8. d4 O-O 9. Nbd2 e5 10. Nf1 Nh5
8. Tal Mem Blitz 2013 – Round 3 – Kramnik, Vladimir – 1-0 – Andreikin, Dmitry – G14 1. Nf3 b6 2. e4 Bb7 3. Nc3 e6 4. d4 Bb4 5. Bd3 Nf6 6. Nd2 d5 7. e5 Nfd7 8. O-O c5 9. Qg4 g6 10. Nb5 cxd4
Amber Rapid 2006 – Round 2 – Topalov, Veselin – 1/2-1/2 – Aronian, Levon – G9 1. Nf3 b6 2. g3 Bb7 3. Bg2 e5 4. c4 g6 5. d4 exd4 6. Qxd4 Nf6 7. Nc3 Bg7 8. O-O Nc6 9. Qe3+ Qe7 10. Qxe7+ Kxe7
Dos Hermanas 1999 – Round 3 – Gelfand, Boris – 1/2-1/2 – Topalov, Veselin – G14 1. Nf3 b6 2. e4 Bb7 3. Nc3 c5 4. d4 cxd4 5. Nxd4 a6 6. Bd3 g6 7. f4 Bg7 8. Nf3 d6 9. O-O Nf6 10. Qe1 O-O
Lindores Abbey Tal Memorial 2021 – Round 15.12 – Adly, Ahmed – 0-1 – Petrosyan, Manuel – G633 1. Nf3 b6 2. g3 Bb7 3. Bg2 g6 4. O-O Bg7 5. d4 Nf6 6. a4 a5 7. Nc3 O-O 8. Re1 Ne4 9. Nxe4 Bxe4 10. Bh3 Bxf3
Moscow Tal Memorial 7. Blitz 2012 – Round 5 – Kramnik, Vladimir – 0-1 – McShane, Luke J – G17 1. Nf3 b6 2. e4 Bb7 3. Nc3 e6 4. d4 g6 5. Bg5 Be7 6. Be3 d6 7. Bd3 Nd7 8. Qd2 a6 9. O-O-O b5 10. Kb1 Nb6
Qatar Masters Open 2015 – Round 3.13 – Xu, Jun(SD) – 1/2-1/2 – Ivanchuk, Vasyl – G92 1. Nf3 b6 2. d4 Bb7 3. c4 e6 4. g3 Bb4+ 5. Bd2 Bxf3 6. exf3 Bxd2+ 7. Qxd2 Ne7 8. Nc3 O-O 9. Bg2 d5 10. cxd5 exd5
World Blitz 2017 – Round 14.33 – Pantsulaia, Levan – 1-0 – Ponkratov, Pavel – G736 1. Nf3 b6 2. g3 Bb7 3. Bg2 g6 4. O-O Bg7 5. d4 Nf6 6. c4 O-O 7. Bf4 e6 8. Qc2 Na6 9. Nc3 d5 10. Ne5 c5
World Blitz 2017 – Round 2.60 – Bukannan, Ahmed A – 0-1 – Van Foreest, Jorden – G115 1. Nf3 b6 2. g3 Bb7 3. Bg2 e5 4. d3 d6 5. O-O Nf6 6. c4 Be7 7. Nc3 O-O 8. Rb1 Qc8 9. Ne1 Bxg2 10. Nxg2 Nbd7
World Blitz 2019 – Round 10.54 – Adhiban, B. – 1-0 – Deviatkin, Andrei – G699 1. Nf3 b6 2. e4 Bb7 3. Nc3 Nf6 4. e5 Nd5 5. Bc4 e6 6. d4 Nxc3 7. bxc3 d5 8. Bd3 h6 9. O-O Ba6 10. a4 Bxd3
World Blitz 2021 – Round 9.7 – Svane, Rasmus – 1-0 – Artemiev, Vladislav – G560 1. Nf3 b6 2. g3 Bb7 3. Bg2 g6 4. O-O Bg7 5. d4 Nf6 6. c4 O-O 7. Re1 e6 8. Bf4 d6 9. Qc2 Nc6 10. Nc3 Re8
Yerevan ol (Men) 1996 – Round 3 – Fridman, Daniel – 0-1 – Speelman, Jon S – G41 1. Nf3 b6 2. b3 Bb7 3. Bb2 e6 4. e3 f5 5. c4 Nf6 6. Nc3 g6 7. Be2 Bg7 8. O-O O-O 9. d4 Ne4 10. Qc2 d6
Yerevan ol (Men) 1996 – Round 9 – Nguyen, Anh Dung – 1-0 – Speelman, Jon S – G134 1. Nf3 b6 2. g3 Bb7 3. Bg2 g6 4. O-O Bg7 5. d3 c5 6. e4 d6 7. Nc3 Nc6 8. Be3 Nf6 9. Nh4 Qd7 10. h3 e5

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