Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● b6→c5, d6→c5, a7→b6, f7→e6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	● d4	—
Centre	● d4 (3v2)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bb2	● Bb2 Ok (mob. 2)
Bg2	● Bg2 Ok (mob. 3)
Bf6		● Bf6 Actif (mob. 4)
Bb7		● Bb7 Actif (mob. 6)
Paire de fous	● Oui	● Oui
Non développées	1 (● a1)	2 (● b8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● d4-d5	● …d6-d5, ● …e6-e5

E19p — Queen’s Indian: Old Main Line, 9.Qxc3 c5 10.Rd1 d6 11.b3 Bf6 12.Bb2 Qe7

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.Qxc3 c5 10.Rd1 d6 11.b3 Bf6 12.Bb2 Qe7 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture d4-d5).

Côté adverse. Un mauvais fou en f6.

Plans. Qc2 (62 % des parties) ; Qd2 (Dame très active (15 cases) — 26 % des parties) ; Rd2 (8 % des parties) ; Qe3 (Centraliser la dame — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu au centre (rupture d6-d5).

Atouts. Les Noirs s'appuient sur des fous actifs en f6 et b7.

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

Plans. ...Nc6 (Développer b8 — 74 % des parties) ; ...Rd8 (15 % des parties) ; ...Na6 (Développer b8 — 5 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1968 Lugano olm – Round 8 – Ivkov, Borislav – 0-1 – Korchnoi, Viktor – G5 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
1968 Palma de Mallorca – Round 12 – Gheorghiu, Florin – 0-1 – Korchnoi, Viktor – G106 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
1970 Palma de Mallorca Interzonal – Round 3 – Ivkov, Borislav – 1/2-1/2 – Polugaevsky, Lev – G115 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
1971 Hoogovens – Round 2 – Ivkov, Borislav – 1-0 – Najdorf, Miguel – G36 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Bugojno 1980 – Round 7 – Timman, Jan H – 1/2-1/2 – Andersson, Ulf 1949 – G29 1. Nf3 Nf6 2. d4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. c4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Candidats Tournament 1985 – Round 10 – Tal, Mikhail – 1/2-1/2 – Timman, Jan H – G61 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Interpolis 1978 – Round 11 – Hort, Vlastimil – 1/2-1/2 – Timman, Jan H – G42 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
La Valetta MLT 1980 – Round 10 – Timman, Jan H – 1/2-1/2 – Portisch, Lajos – G14 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Leningrad ch-URS 1977 – Round 1 – Petrosian, Tigran V. – 1/2-1/2 – Smyslov, Vassily – G14 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. c4 e6 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Manila Interzonal 1976 – Round 17 – Hort, Vlastimil – 1/2-1/2 – Balashov, Yuri S – G73 1. c4 Nf6 2. Nf3 e6 3. d4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
OHRA 1986 – Round 1 – Vaganian, Rafael A – 1/2-1/2 – Ribli, Zoltan – G18 1. Nf3 Nf6 2. g3 b6 3. d4 e6 4. Bg2 Bb7 5. c4 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6
Optiebeurs 1988 – Round 3 – Timman, Jan H – 1/2-1/2 – Van der Wiel, John T.H. – G13 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6

E19p — Old Main Line (1968)

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.Qxc3 c5 10.Rd1 d6 11.b3 Bf6 12.Bb2 Qe7

Les coups candidats

13.Qc2 — 71.7% (452 parties)

Ambassadeurs : Ilyasov, Anatoly Fedorovich (8x), Timman, Jan H (6x), Schmidt, Horst W (6x), Vaganian, Rafael A (5x), Polugaevsky, Lev (4x), Bars, Joachim (4x), Kýhos, Alois (4x), Muzyka, Yury Avraamovich (4x)

13.Qd2 — 14.4% (91 parties)

Ambassadeurs : Ivkov, Borislav (3x), Korchnoi, Viktor (3x), Gheorghiu, Florin (3x), Basic, Sokolov (3x), Miguel, Nahuel (2x), Ribli, Zoltan (2x), Csom, Istvan (2x), Sosenkov, Leonid Andreevich (2x)

13.Qe3 — 5.1% (32 parties)

Ambassadeurs : Adeyemi, Phebe Adesinuola (3x), Schneider, Karl (3x), Petraitis, Gintautas (2x), Petrosian, Tigran A. (1x), Smyslov, Vasily (1x), Ree, Hans (1x), Andersson, Ulf (1x), Rodgaard, John (1x)

13.Rd2 — 3.8% (24 parties)

Ambassadeurs : Timman, Jan H (3x), Sanz Alonso, Francisco Javier (3x), Kühne, Ralf (3x), Sokolowski, Marek (1x), Karlsson, Bjorn-Ivar (1x), Sokolowski, Mieczysla (1x), Karlsson, Bertil (1x), Plachetka, Jan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	13.Qc2	13.Qd2	13.Qe3	13.Rd2
<1800	25	84%	8%	—	4%
1800-2200	271	73%	12%	5%	2%
2200-2600	238	70%	14%	6%	6%
2600+	19	63%	26%	5%	5%

Évolution par décennie (% des parties)

Décennie	N parties	13.Qc2	13.Qd2	13.Qe3	13.Rd2
1960s	2	—	100%	—	—
1970s	44	66%	23%	2%	9%
1980s	30	70%	17%	3%	10%
1990s	41	73%	22%	2%	2%
2000s	118	69%	19%	3%	4%
2010s	364	74%	10%	7%	3%
2020s	31	65%	13%	3%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
13.Qc2	74%	65%	▼ -9.7%
13.Qd2	10%	13%	▲ +2.5%
13.Qe3	7%	3%	▼ -3.6%
13.Rd2	3%	0%	▼ -3.0%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties
Karpov, Anatoly — 2 parties
Kramnik, Vladimir — 1 partie

Parties historiques

13.Qc2 — 71.7% (452 parties)

1970 — Ivkov, Borislav vs Polugaevsky, Lev — 1/2-1/2 — Palma de Mallorca izt
1970 — Filip, Marius Liviu vs Korchnoi, Viktor — 0-1 — Siegen olm
1972 — Alhan, Omer vs Williams, A. Howard — 1/2-1/2 — Skopje MKD
1974 — Rukavina, Josip vs Gulko, Boris — 0-1 — Sombor
1976 — Hort, Vlastimil vs Balashov, Yuri — 1/2-1/2 — Manila PHI

13.Qd2 — 14.4% (91 parties)

1968 — Ivkov, Borislav vs Korchnoi, Viktor — 0-1 — 18th Olympiad final A
1968 — Gheorghiu, Florin vs Korchnoi, Viktor — 0-1 — Palma de Majorca ESP
1970 — O'Kelly de Galway, Alberic vs Hecht, Hans-Joachim — 1/2-1/2 — Bad Pyrmont GER
1970 — Filip, Miroslav vs Korchnoi, Viktor — 0-1 — Siegen GER
1971 — Pomar Salamanca, Arturo vs Csom, Istvan — 1/2-1/2 — Palma de Majorca ESP

13.Qe3 — 5.1% (32 parties)

1977 — Petrosian, Tigran A. vs Smyslov, Vasily — 1/2-1/2 — Leningrad ch-URS
1981 — Ree, Hans vs Andersson, Ulf — 1/2-1/2 — Wijk aan Zee NED
1996 — Rodgaard, John vs Pilgaard, Kim — 1/2-1/2 — Aarhus Kebmandsskole Cup
2004 — Kulvietis, Marijus vs Novikovas, Anatolijus — 1/2-1/2 — ICCF
2007 — Becker, Cindy vs Van Dries, Conny — 1/2-1/2 — ICCF

13.Rd2 — 3.8% (24 parties)

1976 — Hort, Vlastimil vs Korchnoi, Viktor — 1/2-1/2 — Hastings ENG
1978 — Timman, Jan H vs Sanz Alonso, Francisco Javier — 1-0 — Amsterdam NED
1978 — Timman, Jan H vs Sanz Alonso, Francisco Javier — 1-0 — Amsterdam NED
1978 — Timman, Jan H vs Sanz Alonso, Francisco Javier — 1-0 — Amsterdam NED
1985 — Sokolowski, Mieczysla vs Karlsson, Bertil — 1/2-1/2 — ?