A99j — Dutch: Ilyin-Zhenevsky, 8.b3 Qh5 9.Bb2

1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.b3 Qh5 9.Bb2 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte d4, case forte b5, paire de fous.
Faiblesses adverses : Be7 enfermé, Bc8 enfermé.
Problèmes : Bb2 enfermé, Bg2 enfermé.
Plans :
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte e4, case forte g4, case forte f5, avant-poste g4(C), paire de fous.
Faiblesses adverses : Bb2 enfermé, Bg2 enfermé.
Problèmes : Be7 enfermé, Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bg4)
● ...Nbd7 — Développer Nb8
● ...Bg4 — Clouer Nf3
● ...c6 — Rupture
● ...c5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

A99j — Ilyin-Zhenevsky

1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.b3 Qh5 9.Bb2

Eval: [+0.76]

Les coups candidats

9…Nbd7 — 37.9% (44 parties)

Ambassadeurs : Gruenfeld, Ernst (2x), Bogoljubow, Efim (2x), Hook, William (2x), Vager, Boris (2x), Polasek, Jaroslav (2x), Jones, Christopher M (2x), Filip, Miroslav (1x), Jezek, Jaroslav (1x)

9…a5 — 18.1% (21 parties) →

Ambassadeurs : Naumkin, Igor (6x), Bozic, Aleksandar (1x), Ivkov, Borislav (1x), Janjghava, Lasha (1x), Kasumov, Ramyl (1x), Kacheishvili, Giorgi (1x), Bachmayr, Peter (1x), Efimov, Igor (1x)

9…c6 — 18.1% (21 parties)

Ambassadeurs : Kholmov, Ratmir D (1x), Zurakhov, Vladlen Y (1x), Horvath, Julia (1x), Sutorikhin, Vladimir (1x), Llanos, Guillermo (1x), Astorga Iglesias, Alejandro (1x), Ionescu, Viorica (1x), Zatonskih, Anna (1x)

9…g5 — 12.9% (15 parties)

Ambassadeurs : Hansen, Victor (1x), Jensen, Erik Bartram (1x), Kristensen, Henrik Lunden (1x), Poulsen, Peter Risgaard (1x), Bilo, Heinz (1x), Cygon, Juergen (1x), Garcia Rodriguez, Raimundo (1x), Bianchi, Renan Eduardo Biazzi (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Nbd7	9…a5	9…c6	9…g5
<1800	2	—	50%	—	50%
1800-2200	35	43%	11%	14%	17%
2200-2600	56	36%	21%	20%	9%

Évolution par décennie (% des parties)

Décennie	N parties	9…Nbd7	9…a5	9…c6	9…g5
1930s	3	67%	—	—	—
1940s	2	—	50%	—	—
1950s	2	50%	—	50%	—
1960s	2	50%	—	—	50%
1970s	5	80%	—	—	20%
1980s	5	40%	20%	—	40%
1990s	35	26%	26%	26%	14%
2000s	24	50%	8%	25%	4%
2010s	34	35%	15%	15%	15%
2020s	4	25%	75%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Nbd7	35%	25%	▼ -10.3%
9…a5	15%	75%	▲ +60.3%
9…c6	15%	0%	▼ -14.7%
9…g5	15%	0%	▼ -14.7%

Parties historiques

9…Nbd7 — 37.9% (44 parties)

1936 — Gruenfeld, Ernst vs Bogoljubow, Efim — 1-0 — Zandvoort NED
1936 — Gruenfeld, Ernst vs Bogoljubow, Efim — 1-0 — Zandvoort NED
1953 — Filip, Miroslav vs Jezek, Jaroslav — 0-1 — Prague CZE
1964 — Belova, Valentina M vs Lazarevic, Milunka — 0-1 — URS-JUG
1970 — Wallis, Philip N vs Corden, Martyn J — 1/2-1/2 — Coventry ch-BCF

9…a5 — 18.1% (21 parties)

1949 — Bozic, Aleksandar vs Ivkov, Borislav — 0-1 — Zagreb ch YUG
1988 — Janjghava, Lasha vs Naumkin, Igor — 0-1 — Vilnius LTU
1991 — Jimenez Molina, Juan Leon vs Edwards, Matthew — 0-1 — Seattle, WA USA
1992 — Kasumov, Ramyl vs Kacheishvili, Giorgi — 1-0 — Rimavska Sobota SVK
1993 — Castro Phillips, Fabricio vs Jugelt, Tobias — 0-1 — Hamburg ch-GER U20

9…c6 — 18.1% (21 parties)

1956 — Kholmov, Ratmir D vs Zurakhov, Vladlen Y — 1/2-1/2 — Leningrad ch-URS
1993 — Garcia, Javier vs De Miguel Sanchez, Fernando — 1/2-1/2 — Miraflores PER
1993 — Danielsen, Heini vs Rubingh, Otto — 1-0 — Leeuwarden open
1994 — Horvath, Julia vs Sutorikhin, Vladimir — 1/2-1/2 — HUN-chT 9394
1994 — Ionescu, Viorica vs Zatonskih, Anna — 1/2-1/2 — Bucharest ROU

9…g5 — 12.9% (15 parties)

1962 — Hansen, Victor vs Jensen, Erik Bartram — 1/2-1/2 — Copenhagen DEN
1975 — Bilo, Heinz vs Cygon, Juergen — 1-0 — Espelkamp
1983 — Garcia Rodriguez, Raimundo vs Bianchi, Renan Eduardo Biazzi — 1-0 — Buenos Aires ARG
1984 — Kristensen, Henrik Lunden vs Poulsen, Peter Risgaard — 1-0 — Aars DEN
1992 — MacElligott, Gerard vs Keogh, Eamon — 0-1 — Ireland Senior

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● e6→f5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v0), ● b5 (2v0)	● e4 (2v1), ● g4 (3v0), ● f5 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v1)	● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bb2	● Bb2 Enfermé (mob. 2)
Bg2	● Bg2 Enfermé (mob. 2)
Be7		● Be7 Enfermé (mob. 1)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	1 (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	● c4-c5, ● d4-d5, ● e2-e3	● …c7-c6, ● …c7-c5, ● …d6-d5, ● …e6-e5, ● …f5-f4

Partie
1936 Podebrady – Round 1 – Zinner, Emil – 0-1 – Flohr, Salo – G7 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. b3 Qh5 9. Bb2 Bd8 10. a3 Nbd7
1936 Zandvoort – Round 8 – Gruenfeld, Ernst – 1-0 – Bogoljubow, Efim – G51 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. b3 Qh5 9. Bb2 Nbd7 10. Qc2 Ng4
1953 CSR Ch Prague – Round 2 – Filip, Miroslav – 0-1 – Jezek, Jaroslav – G8 1. c4 f5 2. Nf3 Nf6 3. g3 d6 4. d4 e6 5. Bg2 Be7 6. O-O O-O 7. Nc3 Qe8 8. b3 Qh5 9. Bb2 Nbd7 10. Re1 Ne4
1956 Leningrad ch-URS – Round 1 – Kholmov, Ratmir D – 1/2-1/2 – Zurakhov, Vladlen Y – G2 1. c4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. b3 Qe8 7. Bb2 d6 8. d4 Qh5 9. Nc3 c6 10. Re1 d5

1936 Podebrady – Round 1 – Zinner, Emil – 0-1 – Flohr, Salo – G7

1936 Zandvoort – Round 8 – Gruenfeld, Ernst – 1-0 – Bogoljubow, Efim – G51

1953 CSR Ch Prague – Round 2 – Filip, Miroslav – 0-1 – Jezek, Jaroslav – G8

1956 Leningrad ch-URS – Round 1 – Kholmov, Ratmir D – 1/2-1/2 – Zurakhov, Vladlen Y – G2