A07x — Reti: KIA

1.Nf3 d5 2.g3 Nc6 3.Bg2 e5 4.d3 Nf6 5.O-O Be7 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte g5, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : Bc1 enfermé, Bg2 enfermé, 3 pièces non développées (B1, C1, 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

hgfedcba

Avantages : case forte b4, case forte d4, case forte g4, case forte d5, avant-poste d4(C), Be7 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé, Bg2 enfermé.
Problèmes : roi au centre, Bc8 enfermé, 3 pièces non développées (C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bg4 — Développer Bc8, clouer Nf3
● ...d4 — Rupture
● ...e4 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A07x — KIA

1.Nf3 d5 2.g3 Nc6 3.Bg2 e5 4.d3 Nf6 5.O-O Be7

Eval: [-0.20]

Les coups candidats

6.Nbd2 — 26.8% (452 parties)

Ambassadeurs : Petran, Peter (4x), Dos Santos, Marcos Antonio (4x), Klewe, Wolfgang (4x), Bouwmeester, Hans (2x), Lewi, Jerzy (2x), Sydor, Andrzej (2x), Kwasniewski, Zdzislaw (2x), Poutiainen, Pertti (2x)

6.c4 — 22.4% (377 parties)

Ambassadeurs : Brotherton, Trevor S (18x), Broniek, Mariusz Maciej (7x), Rajkovic, Dusan (6x), Hickl, Joerg (5x), Klewe, Wolfgang (5x), Keschitz, Gyorgy (4x), Rhodes, John D (4x), Kourkounakis, Ilias (3x)

6.c3 — 22.1% (372 parties)

Ambassadeurs : Tischbierek, Raj (6x), Beim, Valeri (5x), Movsziszian, Karen (5x), Weiermann, Andreas, Dr. (4x), Todorcevic Antic, Miodrag (4x), Wirthensohn, Heinz (4x), Gusev, Aleksey (4x), Dueckstein, Andreas (3x)

6.a3 — 8.2% (139 parties)

Ambassadeurs : Alejos Robles, Pedro Alejandro (8x), Brotherton, Trevor S (5x), Miles, Anthony J (4x), Ujtelky, Maximilian (3x), Skalkotas, Nikolaos (3x), Suttles, Duncan (3x), Piersig, Klaus (3x), Michaelides, Evan (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Nbd2	6.c4	6.c3	6.a3
<1800	59	49%	20%	10%	3%
1800-2200	437	36%	22%	17%	6%
2200-2600	797	15%	24%	30%	11%
2600+	18	28%	17%	17%	22%

Évolution par décennie (% des parties)

Décennie	N parties	6.Nbd2	6.c4	6.c3	6.a3
1940s	2	—	50%	—	—
1950s	10	40%	20%	10%	20%
1960s	22	32%	14%	32%	9%
1970s	86	28%	21%	30%	6%
1980s	133	17%	13%	28%	16%
1990s	342	25%	20%	25%	4%
2000s	472	32%	20%	21%	8%
2010s	541	26%	29%	19%	9%
2020s	78	23%	18%	15%	14%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Nbd2	26%	23%	▼ -2.6%
6.c4	29%	18%	▼ -11.4%
6.c3	19%	15%	▼ -3.5%
6.a3	9%	14%	▲ +5.2%

Joueurs célèbres

Champions du monde dans cette position

Ju, Wenjun — 2 parties
Euwe, Max — 1 partie
Tal, Mikhail — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

6.Nbd2 — 26.8% (452 parties)

1955 — Lombardy, William J vs Santasiere, Anthony — 1/2-1/2 — Long Beach, CA USA
1957 — Zilber, Israel vs Nikitin, Aleksander S — 0-1 — Leningrad RUS
1958 — Kampenuss Peteris vs Gornevs — 0-1 — Riga LAT
1959 — Khasin, Abram vs Estrin, Yakov — 1-0 — Moscow RUS
1962 — Zangerle, Karl vs Payne, John Bob — 1-0 — San Antonio, TX USA

6.c4 — 22.4% (377 parties)

1945 — Pelikan, Anna vs Dodero, Emilio — 1/2-1/2 — Quilmes
1955 — Gabrovsek Zdravko vs Padevsky, Nikola — 1-0 — Ljubljana
1957 — Blackstone, John vs Wachira Wilson — 0-1 — No. CA
1962 — Kots, Yuri I vs Taimanov, Mark — 1/2-1/2 — Leningrad RUS
1968 — Rossetto, Hector vs Kokkoris, Haralambos — 1-0 — Lugano olm

6.c3 — 22.1% (372 parties)

1959 — Lengyel, Levente vs Pogats, Jozsef Jr. — 1-0 — Budapest HUN
1965 — Kavalek, Lubomir vs Fuchs, Reinhart — 1/2-1/2 — Leipzig GER
1965 — Sloth, Jorn vs Dueckstein, Andreas — 1/2-1/2 — Copenhagen DEN
1965 — Roshal, Alexander vs Ravinsky, Grigory — 1/2-1/2 — Moscow RUS
1965 — Roshal, Alexander vs Fridstein, German — 0-1 — Moscow RUS

6.a3 — 8.2% (139 parties)

1956 — Ujtelky, Maximilian vs Fichtl, Jiri — 1/2-1/2 — Podebrady CZE
1957 — Ujtelky, Maximilian vs Jezek, Jaroslav — 1-0 — Praag ch CZE
1963 — Ujtelky, Maximilian vs Filip, Miroslav — 1/2-1/2 — Prague CZE
1967 — Norby, Peter H. vs Hvenekilde, Jorgen — 1/2-1/2 — Vejle DEN
1973 — Zwaig, Arne vs Johannessen, Svein — 1/2-1/2 — Oslo NOR

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

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	● b4 (2v0), ● d4 (2v1), ● g4 (2v0), ● d5 (2v0)
Cases faibles	—	—
Centre	—	● d4 (2v1), ● d5 (2v0), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bg2	● Bg2 Enfermé (mob. 2)
Be7		● Be7 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (b1, c1, a1)	3 (c8, 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	semi-ouvert
Ruptures	● c2-c3, ● d3-d4, ● e2-e3	● …d5-d4, ● …e5-e4

Partie
1945 Quilmes – Round 1 – Pelikan, Anna – 0-1 – Stahlberg, Gideon – G1 1. d3 d5 2. g3 e5 3. Nf3 Nc6 4. Bg2 Nf6 5. O-O Be7 6. Nc3 O-O 7. h3 Bf5 8. Bg5 Qd7 9. g4 Be6 10. e4 d4
1945 Quilmes – Round 1 – Pelikan, Anna – 1/2-1/2 – Dodero, Emilio – G3 1. d3 e5 2. g3 d5 3. Nf3 Nc6 4. Bg2 Nf6 5. O-O Be7 6. c4 dxc4 7. Qa4 Bd7 8. Qxc4 O-O 9. a3 Be6 10. Qc2 a5
1955 Ljubljana – Round 9 – Gabrovsek Zdravko – 1-0 – Padevsky, Nikola – G80 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Be7 6. c4 O-O 7. cxd5 Nxd5 8. Nc3 Be6 9. Bd2 Nb6 10. Qc1 f6
1955 Long Beach US-open – Round 6 – Lombardy, William J – 1/2-1/2 – Santasiere, Anthony – G23 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Be7 6. Nbd2 O-O 7. e4 dxe4 8. dxe4 Be6 9. c3 h6 10. Qe2 Nd7
1956 CSR Ch – Round 14 – Ujtelky, Maximilian – 1/2-1/2 – Fichtl, Jiri – G131 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Be7 6. a3 a5 7. b3 O-O 8. Bb2 Bd6 9. Nbd2 Qe7 10. c4 d4
1957 Leningrad – Round 5 – Zilber, Israel – 0-1 – Nikitin, Aleksander S – G43 1. Nf3 Nf6 2. g3 Nc6 3. Bg2 e5 4. d3 d5 5. O-O Be7 6. Nbd2 O-O 7. e4 Bg4 8. h3 Bh5 9. g4 Bg6 10. Nh4 dxe4
1959 HUN Ch 15th – Round 12 – Lengyel, Levente – 1-0 – Pogats, Jozsef Jr. – G41 1. g3 Nf6 2. Bg2 d5 3. d3 e5 4. Nf3 Nc6 5. O-O Be7 6. c3 O-O 7. Nbd2 a5 8. e4 dxe4 9. dxe4 b6 10. Qa4 Qe8
1962 Stockholm Interzonal – Round 15 – Bilek, Istvan – 0-1 – Geller, Efim P – G137 1. g3 e5 2. Bg2 d5 3. d3 Nf6 4. Nf3 Nc6 5. O-O Be7 6. Bg5 O-O 7. Nfd2 Bg4 8. Nc3 Nd4 9. h3 Be6 10. e3 Nc6
1963 CSR Ch – Round 5 – Ujtelky, Maximilian – 1/2-1/2 – Filip, Miroslav – G45 1. g3 e5 2. Bg2 d5 3. d3 Nf6 4. Nf3 Nc6 5. O-O Be7 6. a3 a5 7. b3 O-O 8. Bb2 d4 9. Nbd2 Nd5 10. Nc4 Bf6
1965 Copenhagen – Round 1 – Sloth, Jorn – 1/2-1/2 – Dueckstein, Andreas – G22 1. Nf3 Nc6 2. g3 e5 3. d3 d5 4. Bg2 Nf6 5. O-O Be7 6. c3 O-O 7. Nbd2 h6 8. e4 dxe4 9. dxe4 Be6 10. Qe2 Qc8
1965 Leipzig Inter-1 – Round 11 – Kavalek, Lubomir – 1/2-1/2 – Fuchs, Reinhart – G27 1. g3 d5 2. Bg2 Nf6 3. d3 e5 4. Nf3 Nc6 5. O-O Be7 6. c3 a5 7. Nbd2 O-O 8. e4 dxe4 9. dxe4 Bc5 10. Nh4 Bg4
1966 Rzeszow ch POL – Round 2 – Lewi, Jerzy – 0-1 – Sydor, Andrzej – G13 1. g3 d5 2. Bg2 e5 3. d3 Nc6 4. Nf3 Be7 5. O-O Nf6 6. Nbd2 O-O 7. e4 Re8 8. h3 Bf8 9. c3 h6 10. exd5 Nxd5
1966 Rzeszow ch POL – Round 6 – Ziembinski, Marian – 1/2-1/2 – Sydor, Andrzej – G42 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Be7 6. Nbd2 O-O 7. e4 Re8 8. c3 Bf8 9. Re1 Be6 10. Ng5 Qd7
1968 SWE Ch – Round 10 – Platzack, Sven – 1-0 – Kinnmark, Ove – G37 1. g3 e5 2. Bg2 d5 3. d3 Nf6 4. Nf3 Nc6 5. O-O Be7 6. c3 O-O 7. b4 a6 8. Qc2 h6 9. Nbd2 Be6 10. a3 Nd7
1969 Raach zt – Round 17 – Zwaig, Arne – 1/2-1/2 – Dueball, Juergen – G147 1. g3 e5 2. d3 d5 3. Nf3 Nc6 4. Bg2 Nf6 5. O-O Be7 6. Na3 O-O 7. c4 e4 8. dxe4 dxe4 9. Ng5 Bf5 10. Nc2 Qc8
1969 Raach zt – Round 4 – Sigurjonsson, Gudmundur – 1/2-1/2 – Dueckstein, Andreas – G49 1. Nf3 Nc6 2. g3 e5 3. d3 d5 4. Bg2 Nf6 5. O-O Be7 6. c3 O-O 7. Qc2 a5 8. a4 h6 9. e4 dxe4 10. dxe4 Be6
1969 Vrsac – Round 1 – Masic, Almir – 1-0 – Rossolimo, Nicolas – G14 1. g3 d5 2. Bg2 e5 3. d3 Nc6 4. Nf3 Nf6 5. O-O Be7 6. c4 d4 7. b4 Nd7 8. b5 Ncb8 9. Bb2 c5 10. e4 a6
1970 Palma de Mallorca Interzonal – Round 13 – Hort, Vlastimil – 1/2-1/2 – Polugaevsky, Lev – G248 1. g3 d5 2. Bg2 e5 3. d3 Nc6 4. Nf3 Nf6 5. O-O Be7 6. Nc3 O-O 7. Re1 d4 8. Ne4 Nxe4 9. dxe4 Bg4 10. a3 a5
40. Olympiad Open 2012 – Round 5.29 – Valdes Romero, Leonardo – 1-0 – Ragger, Markus – G326 1. Nf3 Nc6 2. g3 e5 3. d3 d5 4. Bg2 Nf6 5. O-O Be7 6. c4 O-O 7. cxd5 Nxd5 8. Nc3 Nb6 9. a3 Be6 10. b4 Nd4
Erevan ch-URS 1975 – Round ? – Tal, Mikhail – 1-0 – Klovans, Janis – G49 1. g3 d5 2. Bg2 Nf6 3. d3 e5 4. Nf3 Nc6 5. O-O Be7 6. c4 dxc4 7. Qa4 O-O 8. Qxc4 Be6 9. Qa4 Nd5 10. Nc3 Nb6
Interpolis 1985 – Round 1 – Dzindzichashvili, Roman – 1-0 – Ljubojevic, Ljubomir – G27 1. g3 e5 2. d3 d5 3. Nf3 Nc6 4. Bg2 Nf6 5. O-O Be7 6. c3 O-O 7. Qc2 Bf5 8. Nbd2 Qd7 9. e4 Bh3 10. Re1 Bxg2
Interpolis 1985 – Round 1 – Dzindzichashvili, Roman – 1/2-1/2 – Korchnoi, Viktor – G28 1. g3 e5 2. Bg2 d5 3. d3 Nc6 4. Nf3 Nf6 5. O-O Be7 6. c3 O-O 7. Nbd2 Re8 8. Qc2 Be6 9. b4 Nd7 10. b5 Na5
Malta ol (Men) 1980 – Round 1 – Day, Lawrence A. – 1/2-1/2 – Timman, Jan H – G25 1. g3 d5 2. Bg2 e5 3. d3 Nf6 4. Nf3 Nc6 5. O-O Be7 6. a3 O-O 7. b4 e4 8. Nfd2 exd3 9. cxd3 Bg4 10. Nc3 Qd7
Moskou ch-URS 1973 – Round 1 – Petrosian, Tigran V – 1/2-1/2 – Polugaevsky, Lev – G62 1. g3 d5 2. Bg2 e5 3. d3 Nf6 4. Nf3 Nc6 5. O-O Be7 6. c3 a5 7. Nbd2 O-O 8. Qc2 b6 9. b3 Bb7 10. a3 Re8
World Blitz 2015 – Round 1.57 – Valdes Romero, Leonardo – 0-1 – Vitiugov, Nikita – G48 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Be7 6. c3 a5 7. Qc2 O-O 8. Nbd2 b6 9. b3 Re8 10. e4 Ba6
World Blitz 2015 – Round 19.58 – Zhang, Zhong – 1-0 – Godena, Michele – G1210 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Be7 6. Nbd2 e4 7. Ne1 Bf5 8. e3 Bg4 9. f3 exf3 10. Nexf3 Qd7
World Blitz 2022 – Round 5.21 – Petrosian, Tigran L. – 1-0 – Tabatabaei Bafghi, Mohammad – G245 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Be7 6. c3 O-O 7. Qc2 a5 8. e4 Re8 9. Re1 Bf8 10. h3 h6
World Blitz 2022 – Round 8.18 – Ghasi, Ameet K – 1-0 – Van Foreest, Jorden – G400 1. Nf3 d5 2. g3 Nc6 3. d3 e5 4. Bg2 Nf6 5. O-O Be7 6. a3 a5 7. b3 O-O 8. Bb2 Bd6 9. Nc3 Re8 10. e4 d4

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