A05v — Reti: KIA

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 c5 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plan principal. Exploiter la case forte f4….

Atouts. Les Blancs s'appuient sur les cases fortes f4 et g5 et la paire de fous.

Côté adverse. Les fous enfermés en g7 et c8.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b1, le fou c1 et la tour a1).

Plans. Nbd2 (Développer Nb1) ; Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4) ; c3 (Préparer d4).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plan principal. Jeu au centre (rupture c5-c4).

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Les fous enfermés en c1 et g2.

En contrepartie. Plusieurs pièces dorment encore (le cavalier b8, le fou c8 et la tour a8).

Plans. ...d6 (Libérer Bc8) ; ...Nc6 (Développer Nb8) ; ...c4 (Rupture) ; ...d5 (Rupture) ; ...e6 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● c2→d3, e2→d3, f2→g3, h2→g3	● f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● e5 (1v0)	● d5 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c2-c3, ● d3-d4, ● e2-e3	● …c5-c4, ● …d7-d6, ● …d7-d5, ● …e7-e6, ● …e7-e5

Partie
1952 Helsinki olm – Round 1 – Zita, Filip – 1/2-1/2 – Heinicke, Herbert – G303 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. c3 d5 8. Nbd2 b6 9. Re1 e6 10. exd5 Nxd5
1953 Mar del Plata – Round 1 – Ojanen, Kaarle S – 1/2-1/2 – Bolbochan, J. – G36 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. Nbd2 Nc6 7. e4 d6 8. c3 Bd7 9. Re1 Rc8 10. Nf1 b5
1954 Prague zt – Round 16 – Hodja, B. – 0-1 – Sajtar, Jaroslav – G92 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. c3 d6 8. h3 Qc7 9. Nbd2 Bd7 10. Kh2 Rac8
1954 World Championship 20th – Round 17 – Smyslov, Vladimir – 1/2-1/2 – Botvinnik, Mikhail – G17 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. c3 d5 8. e5 Ne8 9. d4 Bg4 10. h3 Bxf3
1955 Moskou ch-URS – Round ? – Korchnoi, Viktor – 0-1 – Botvinnik, Mikhail – G176 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nbd2 d6 8. c3 Ne8 9. Qe2 Nc7 10. Nb3 b6
1955 Moskou ch-URS – Round 11 – Smyslov, Vladimir – 1-0 – Botvinnik, Mikhail – G131 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nbd2 d6 8. a4 Ne8 9. Nc4 e5 10. c3 f5
1956 Debrecen – Round 1 – Dozsa, Paul – 1/2-1/2 – Portisch, Lajos – G19 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O c5 5. d3 O-O 6. e4 d6 7. Nbd2 Nc6 8. a4 Rb8 9. Nc4 Bg4 10. h3 Be6
1956 Denmark ch corr – Round ? – Korning, Peter – 1/2-1/2 – Nielsen, Gunnar – G11 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nbd2 d6 8. a4 Ne8 9. Nc4 e5 10. c3 f5
1956 Montevideo – Round 1 – Rossetto, Hector – 1-0 – De Souza Mendes, Joao – G49 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. c4 d5 7. Nc3 d4 8. Na4 Na6 9. a3 Nd7 10. Bd2 Rb8
1956 New York – Round 1 – Saidy, Anthony – 1-0 – Green, Matthew R – G6 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. Nbd2 Nc6 7. e4 d6 8. a4 Rb8 9. Ne1 d5 10. exd5 Nxd5
1957 Mar del Plata – Round 4 – Bianco Esposito, Antonio – 1-0 – Rubio Aguado, Fernando – G49 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 d6 7. Nbd2 Nc6 8. a4 e5 9. Nc4 b6 10. c3 Ne8
1957 New Jersey State Ch Open – Round 2 – Fischer, Robert J – 1-0 – Green, Matthew R – G11 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. Nbd2 Nc6 7. e4 d6 8. a4 Rb8 9. Nc4 b6 10. e5 dxe5
1957 New York ch-USA – Round 1 – Feuerstein, Arthur – 0-1 – Bernstein, Sidney – G5 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O c5 5. d3 O-O 6. e4 Nc6 7. Nbd2 d6 8. Re1 Bd7 9. h3 Qc8 10. Kh2 b5
1957 New York ch-USA – Round 1 – Feuerstein, Arthur – 1-0 – Seidman, Herbert – G4 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nbd2 b6 8. Re1 Bb7 9. c3 Nh5 10. Nc4 f5
1957 URS Ch, semi final – Round 1 – Lutikov, Anatoly S – 1-0 – Vladimirov, Boris T – G35 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nc3 Rb8 8. Be3 d6 9. h3 b5 10. Qd2 Re8
1959 Buenos Aires JM – Round 1 – Bielicki, Carlos – 1-0 – Bahamonde Corral, Alejandro – G12 1. Nf3 Nf6 2. g3 c5 3. Bg2 g6 4. O-O Bg7 5. d3 O-O 6. Nc3 Nc6 7. a3 Rb8 8. Rb1 d6 9. b4 Ng4 10. Bd2 cxb4
1959 Marianske Lazne – Round 6 – Rabar, Braslav – 1-0 – Jensen, Erik Bartram – G46 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. Nc3 d5 7. a3 Nc6 8. Rb1 e6 9. Bd2 h6 10. b4 Nd7
1960 BRA-ch27 – Round 9 – Benevides, Carlos – 0-1 – De Souza Mendes, Joao – G19 1. Nf3 Nf6 2. g3 c5 3. d3 g6 4. Bg2 Bg7 5. O-O O-O 6. e4 d6 7. Nbd2 Nc6 8. h3 h6 9. c3 e5 10. Nc4 Be6
1960 Olympiad final C – Round 8 – Anastassopulos, Anastasios – 1/2-1/2 – Campomanes, Florencio – G16 1. Nf3 Nf6 2. g3 g6 3. Bg2 c5 4. d3 Bg7 5. O-O O-O 6. e4 d6 7. Nbd2 Nc6 8. a4 Bg4 9. h3 Bd7 10. Nc4 Rb8
1961 Utrecht – Round 1 – Van de Pol, Jan – 0-1 – Matanovic, Aleksandar – G11 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d3 O-O 5. O-O c5 6. e4 Nc6 7. Re1 d6 8. c3 e5 9. d4 cxd4 10. cxd4 Bg4
1961 Vrnjacka Banja ct women – Round 14 – Gresser, Gisela Kahn – 0-1 – Zatulovskaya, Tatiana – G75 1. Nf3 g6 2. g3 Bg7 3. Bg2 Nf6 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nbd2 d6 8. Re1 Rb8 9. c3 b5 10. Nf1 b4
1964 Burevestnik CC Ch – Round ? – Roshal, Alexander – 0-1 – Stoliar, Efim Samoilovich – G10 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nh4 d6 8. f4 Bd7 9. a4 a6 10. f5 b5
1964 DDR Ch 14. Magdeburg GER – Round 17 – Bruemmer, Ullrich – 1/2-1/2 – Maedler, Juergen, Dr. – G14 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O c5 5. d3 O-O 6. Nbd2 Nc6 7. c3 d5 8. e4 e5 9. Qc2 h6 10. Nh4 Be6
1964 EU Team Ch sf – Round 5.7 – Flesch, Janos – 1-0 – Spiridonov, Nikola – G77 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 Nc6 7. Nbd2 d6 8. Nc4 b5 9. Ne3 Rb8 10. Ng5 Bd7
1965 POL Ch 22th – Round 8 – Manasterski, Lutoslaw – 0-1 – Bednarski, Jacek B – G46 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. c4 d5 7. cxd5 Nxd5 8. Qb3 Nc6 9. Nc3 Nc7 10. Be3 b6
1965 SWE Ch – Round 10 – Fridh, Anton – 0-1 – Akvist, Hakan – G34 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 d6 7. c3 Nc6 8. Re1 Bg4 9. h3 Bxf3 10. Qxf3 Rc8
1967 Moscow – Round 1 – Guseva, Evgenia M. – 0-1 – Kushnir, Alla – G140 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 d6 7. Nbd2 Nc6 8. Qe1 Qc7 9. Nc4 b5 10. e5 bxc4
1967 URS-ch35 – Round 1 – Levin Astorga, Nicolas Daniel – 0-1 – Vasiukov, Evgeni – G100 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. Nc3 Nc6 7. a3 d6 8. Rb1 b6 9. d4 Bb7 10. d5 Nd4
1969 Athens zt – Round 14 – Hort, Vlastimil – 1-0 – Siaperas, Triantafyllos – G78 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. e4 d6 7. Nbd2 Nc6 8. a4 Rb8 9. Nc4 b6 10. Bd2 Bb7
World Blitz 2017 – Round 5.36 – Zhao, Jun – 1-0 – Kokarev, Dmitry – G261 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 c5 6. Nc3 Nc6 7. a3 Rb8 8. Rb1 b6 9. b4 d6 10. Bg5 Bb7

A05v — KIA

1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d3 c5

Les coups candidats

6.e4 — 66.4% (1203 parties)

Ambassadeurs : Niermann, Michael, Dr. (9x), Gierse, Heinz-Dieter, Dr. (5x), Anastassopulos, Anastasios (4x), Botvinnik, Mikhail (4x), Biyiasas, Peter (4x), Kahn, Evarth Dr. (4x), Koskinen, Veikko (4x), Stocko, Josip (4x)

6.Nbd2 — 14.8% (268 parties)

Ambassadeurs : Clews, W. A. (3x), Anastassopulos, Anastasios (2x), Green, Matthew R (2x), Tia, Rudy Jr. (2x), Umur, Aydin (2x), Sutton, Alan B (2x), Falasca, Valerio (2x), Clark, Stephen L. (2x)

6.c4 — 8.4% (152 parties)

Ambassadeurs : Zivkovic, Zivojin (4x), Grassi, Enrico (2x), Mohr, Georg (2x), Matamoros Franco, Carlos S. (2x), Nedela, Jiri (2x), Vovk, Aleksandr (2x), Onischuk, Vasilisa (2x), Wheeler, John F (1x)

6.c3 — 5.4% (97 parties)

Ambassadeurs : Vujadinovic, Goran (4x), Keschitz, Gyorgy (4x), Habibi, Ali (4x), Belezky, Alexander (4x), Shoker, Samy (3x), Knott, Simon J B (2x), Maier, Christian (2x), Zimmerman, Yuri (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.e4	6.Nbd2	6.c4	6.c3
<1800	66	53%	21%	14%	2%
1800-2200	714	65%	18%	8%	5%
2200-2600	630	69%	9%	8%	7%
2600+	10	40%	10%	30%	10%

Évolution par décennie (% des parties)

Décennie	N parties	6.e4	6.Nbd2	6.c4	6.c3
1950s	36	75%	17%	3%	—
1960s	35	66%	11%	11%	3%
1970s	62	61%	10%	3%	5%
1980s	98	65%	14%	7%	9%
1990s	449	69%	16%	7%	4%
2000s	474	65%	17%	7%	6%
2010s	567	65%	13%	12%	5%
2020s	91	65%	16%	2%	9%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.e4	65%	65%	-0.4%
6.Nbd2	13%	16%	▲ +3.8%
6.c4	12%	2%	▼ -10.1%
6.c3	5%	9%	▲ +3.9%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 4 parties
Smyslov, Vladimir — 2 parties

Parties historiques

6.e4 — 66.4% (1203 parties)

1951 — Andres Lange, Elke vs Rossolimo, Nicolas — 0-1 — Dortmund GER
1952 — Zita, Filip vs Heinicke, Herbert — 1/2-1/2 — Helsinki olm
1954 — Kramer, Haije vs Schmitt, Ludwig — 0-1 — Utrecht NED
1954 — Smyslov, Vladimir vs Botvinnik, Mikhail — 1/2-1/2 — Moskou wch-m
1954 — Hodja, B. vs Sajtar, Jaroslav — 0-1 — Prague CZE

6.Nbd2 — 14.8% (268 parties)

1953 — Ojanen, Kaarle S vs Bolbochan, J. — 1/2-1/2 — Mar del Plata ARG
1955 — Somers, Staf vs Van Oosterom, Joop — 0-1 — Antwerp BEL
1956 — Saidy, Anthony vs Green, Matthew R — 1-0 — New York, NY USA
1957 — Fischer, Raphael vs Green Marwa — 1-0 — East Orange
1957 — Fischer, Robert J vs Green, Matthew R — 1-0 — East Orange

6.c4 — 8.4% (152 parties)

1956 — Rossetto, Hector vs De Souza Mendes, Joao — 1-0 — Montevideo URU
1962 — Wheeler, John F vs Khodos, German — 0-1 — Marianske Lazne
1965 — Goethals F vs Ree, Hans — 1/2-1/2 — Sinaia
1965 — Manasterski, Lutoslaw vs Bednarski, Jacek — 0-1 — Lublin POL
1969 — Ager, Maria vs Shaughnessy, Elizabeth — 1-0 — Lublin POL

6.c3 — 5.4% (97 parties)

1964 — Sveen, L. vs Mack Lee, Aizyleen — 0-1 — Huron Valley Open
1973 — Anceschi, Vittorio vs Bessenay, Maurice — 1-0 — Groningen NED
1979 — Lloyd, Kenneth W vs Knott, Simon J B — 0-1 — Chester
1979 — Lloyd, Kenneth vs Knott, Simon J B — 0-1 — Chester ch-BCF
1982 — Suer, Nevzat vs Smith Foley, Richard John — 1/2-1/2 — Luzern olm

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