Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, f2→g3, h2→g3, b3→c4	● e6→f5, b7→c6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● g5 (2v0)	● e4 (2v1), ● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v0), ● e5 (2v1)	● d5 (3v2), ● e4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bg2	● Bg2 Ok (mob. 2)
Be7		● Be7 Ok (mob. 1)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● c4-c5, ● d4-d5, ● e2-e4	● …c6-c5, ● …d6-d5, ● …e6-e5, ● …f5-f4

A99b — Dutch: Ilyin-Zhenevsky, 8.b3 c6

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 c6 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Qc2 (39 % des parties) ; Bb2 (Fianchetto, fou sur la grande diagonale — 30 % des parties) ; Ba3 (Fou actif (mobilité 5), Développer c1 — 16 % des parties) ; Re1 (6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Qh5 (34 % des parties) ; ...Na6 (Développer b8 — 18 % des parties) ; ...d5 (Occuper le centre — 12 % des parties) ; ...Nbd7 (Développer b8 — 12 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1951 Madrid ESP – Round 4 – Adserias Sanz, Juan – 0-1 – Canal, Esteban – G8 1. Nf3 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. b3 Qe8 7. d4 d6 8. Nc3 c6 9. Qd3 d5 10. Ne5 Nbd7
1951 URS Ch sf – Round 1 – Vistaneckis, Isakas – 0-1 – Kopaev, Nikolay A – G4 1. Nf3 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. Nc3 d6 7. d4 Qe8 8. b3 c6 9. Qc2 Qh5 10. Ba3 Rf7
1954 URS Team Ch – Round 5 – Tarasov, Vitaly – 1-0 – Kopaev, Nikolay A – G75 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 c6 9. Re1 d5 10. Ne5 Nbd7
1956 JUG-URS – Round 1 – Smyslov, Vladimir – 1/2-1/2 – Milic, Borislav – G2 1. c4 e6 2. g3 f5 3. Bg2 Nf6 4. Nf3 Be7 5. O-O O-O 6. b3 d6 7. d4 Qe8 8. Nc3 c6 9. Qc2 Na6 10. Bb2 Qh5
1957 Minsk zt – Round 17 – Sokolsky, Alexey – 1-0 – Zvorykina, Kira – G123 1. Nf3 f5 2. g3 Nf6 3. Bg2 d6 4. d4 e6 5. O-O Be7 6. c4 O-O 7. Nc3 Qe8 8. b3 c6 9. Ba3 Nbd7 10. Qc2 Qh5
1957 WchT U26 04th – Round 7.2 – Drimer, Dolfi – 1-0 – Abad Martin, Eloy – G90 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. b3 c6 9. d5 Ne4 10. Bb2 Nxc3
1961 Marianske Lazne zt – Round 9 – Olafsson, Fridrik – 1-0 – Milic, Borislav – G65 1. Nf3 f5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. b3 Qe8 7. Nc3 d6 8. d4 c6 9. Qc2 Na6 10. a3 Qh5
1963 Beverwijk – Round 1 – Rellstab, Ludwig – 1/2-1/2 – Henneberke, Frans – G6 1. d4 f5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. O-O O-O 6. c4 d6 7. Nc3 c6 8. b3 Qe8 9. Ba3 Na6 10. e3 Rb8
1964 ARG Ch – Round 1 – Garcia Rodriguez, Raimundo – 1-0 – Palermo, Vicente – G3 1. Nf3 f5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. d4 d6 7. Nc3 Qe8 8. b3 c6 9. Bb2 Qh5 10. Qc2 Na6
1965 Buenos Aires ch-ARG – Round 3 – Pugach, Alevtina – 0-1 – Palermo, Vicente – G31 1. c4 f5 2. Nf3 Nf6 3. g3 d6 4. d4 e6 5. Nc3 Be7 6. Bg2 O-O 7. O-O Qe8 8. b3 c6 9. Qc2 Qg6 10. Ba3 Re8
1967 Monte Carlo-B – Round 1 – Kozma, Julius – 1/2-1/2 – Maric, Rudolf – G2 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nf3 d6 6. O-O O-O 7. Nc3 Qe8 8. b3 c6 9. Bb2 Qh5 10. Qc2 d5
1968 Hungary – Round 1 – Lengyel, Laszlo – 1/2-1/2 – Farago, Ivan – G3 1. c4 f5 2. Nf3 Nf6 3. g3 d6 4. d4 e6 5. Nc3 Be7 6. Bg2 O-O 7. O-O Qe8 8. b3 c6 9. Ba3 a5 10. c5 d5
1969 Novi Travnik ch YUG – Round 14 – Marangunic, Srdjan – 1-0 – Nikolic, Stanimir – G12 1. Nf3 f5 2. g3 Nf6 3. d4 d6 4. Bg2 e6 5. O-O Be7 6. c4 O-O 7. Nc3 c6 8. b3 Qe8 9. Bb2 Nh5 10. e4 f4

A99b — Ilyin-Zhenevsky (1951)

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 c6

Les coups candidats

9.Qc2 — 39.0% (32 parties)

Ambassadeurs : Milic, Borislav (2x), Rasidovic, Sead (2x), Olafsson, Fridrik (1x), Keller-Hermann, Edith (1x), Timmer, Hendrika G (1x), Vistaneckis, Isakas (1x), Kopaev, Nikolay A (1x), Pugach, Mario (1x)

9.Bb2 — 30.5% (25 parties)

Ambassadeurs : Marangunic, Srdjan (1x), Nikolic, Predrag (1x), Heinicke, Herbert (1x), Niephaus, Walter (1x), Garcia, Eder Raimundo (1x), Palermo, Vicente (1x), Kozma, Julius (1x), Maric, Rudolf (1x)

9.Ba3 — 15.9% (13 parties)

Ambassadeurs : Sokolsky, Alexey (2x), Bakheet Farag (2x), Rellstab, Ludwig (1x), Henneberke, Frans (1x), Zvorykina, Kira (1x), Lengyel, Levente (1x), Zvorykina, Kira Alekseyevna (1x), Becker, Soenke (1x)

9.Re1 — 6.1% (5 parties)

Ambassadeurs : Tarasov, Vitaly (1x), Kopaev, Nikolay A (1x), Horak, Vladimir (1x), Dufek, Vladimir (1x), Ivanov, Igor V. (1x), Xantos, Constantin (1x), Lanzani, Mario Lorenzo (1x), Iudicello, Marco (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9.Qc2	9.Bb2	9.Ba3	9.Re1
<1800	1	100%	—	—	—
1800-2200	25	44%	36%	12%	—
2200-2600	27	26%	41%	19%	11%

Évolution par décennie (% des parties)

Décennie	N parties	9.Qc2	9.Bb2	9.Ba3	9.Re1
1950s	9	33%	11%	22%	11%
1960s	8	38%	38%	25%	—
1970s	12	25%	25%	25%	8%
1980s	9	22%	44%	22%	11%
1990s	12	58%	25%	8%	8%
2000s	16	44%	38%	12%	6%
2010s	15	40%	33%	7%	—
2020s	1	100%	—	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9.Qc2	40%	100%	▲ +60.0%
9.Bb2	33%	0%	▼ -33.3%
9.Ba3	7%	0%	▼ -6.7%
9.Re1	0%	0%	+0.0%

Parties historiques

9.Qc2 — 39.0% (32 parties)

1951 — Vistaneckis, Isakas vs Kopaev, Nikolay A — 0-1 — Lvov UKR
1956 — Smyslov, Vasily vs Milic, Borislav — 1/2-1/2 — Belgrade SRB
1956 — Kurass, Iskir vs Kofman, Abram R — 1/2-1/2 — Kiev UKR
1961 — Olafsson, Fridrik vs Milic, Borislav — 1-0 — Marianske Lazne
1965 — Pugach, Mario vs Palermo, Vicente — 0-1 — Buenos Aires ch-ARG

9.Bb2 — 30.5% (25 parties)

1951 — Heinicke, Herbert vs Niephaus, Walter — 0-1 — Hamburg GER
1964 — Garcia, Eder Raimundo vs Palermo, Vicente — 1-0 — Buenos Aires ARG
1967 — Kozma, Julius vs Maric, Rudolf — 1/2-1/2 — Monte Carlo MNC
1969 — Marangunic, Srdjan vs Nikolic, Predrag — 1-0 — Novi Travnik ch YUG
1977 — Straat, Evert-Jan vs Schlenker, Rainer — 1-0 — ?

9.Ba3 — 15.9% (13 parties)

1957 — Sokolsky, Alexey vs Zvorykina, Kira — 1-0 — Minsk BLR
1957 — Sokolsky, Alexey vs Zvorykina, Kira Alekseyevna — 1-0 — Minsk zt
1963 — Rellstab, Ludwig vs Henneberke, Frans — 1/2-1/2 — Beverwijk NED
1968 — Lengyel, Levente vs Bakheet Farag — 1/2-1/2 — HUN
1973 — Gruenberg, Hans-Ulrich vs Brueggemann, Joachim — 1-0 — DDR-ch 22th Erfurt GER

9.Re1 — 6.1% (5 parties)

1954 — Tarasov, Vitaly vs Kopaev, Nikolay A — 1-0 — Riga LAT
1977 — Horak, Vladimir vs Dufek, Vladimir — 1/2-1/2 — Prague CZE
1985 — Ivanov, Igor V. vs Xantos, Constantin — 1/2-1/2 — Quebec op
1993 — Lanzani, Mario Lorenzo vs Iudicello, Marco — 1-0 — Milan op Milan ITA
2005 — Jakab, Attila vs Boe, Mads — 1/2-1/2 — Budapest HUN

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