Archives des E09a - 8.Nbd2 - Catalan: Closed Main Line [+0.32]

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E09a — Catalan: Closed Main Line

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2

Eval: [+0.32]

Les coups candidats

Ambassadeurs : Pingin, Artem (10x), Kozul, Zdenko (8x), Geller, Jakov (7x), Karakehajov, Kalin (7x), Ghaem Maghami, Ehsan (7x), Eliskases, Erich (6x), Gereben, Erno (6x), Ignacz, Maria (6x)

8…Re8 — 14.6% (919 parties) →

Ambassadeurs : Summermatter, Daniel (3x), Sivuk, Vitaly (3x), Opocensky, Karel (2x), Golombek, Harry (2x), Kozlovskaya, Valentina (2x), Eising, Johannes (2x), Laliena Solanes, Luis (2x), Priehoda, Vitezslav (2x)

8…Qc7 — 4.1% (259 parties)

Ambassadeurs : Zuk, Robert D. (2x), Macskasy, Elod (2x), Sop Kanli, Selen (2x), Czartoryska, Anna (2x), Sargac, Rajna (2x), Jakovljevski, Radivoje (2x), Sajtar, Jaroslav (1x), Dietze, Max (1x)

8…b5 — 4.1% (259 parties) →

Ambassadeurs : Osnos, Viatcheslav (2x), Van Scheltinga, Theo (2x), Pyhala, Antti (2x), Biyiasas, Peter (2x), Doroshkievich, Vladimir K (2x), Hurme, Harri (2x), Kirov, Nino (2x), Velikov, Petar (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…b6	8…Re8	8…Qc7	8…b5
<1800	228	48%	18%	7%	4%
1800-2200	2622	60%	21%	6%	3%
2200-2600	2602	80%	7%	1%	5%
2600+	57	98%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	8…b6	8…Re8	8…Qc7	8…b5
1920s	2	50%	50%	—	—
1930s	10	50%	10%	30%	10%
1940s	39	72%	13%	5%	8%
1950s	49	82%	6%	4%	6%
1960s	55	80%	5%	2%	11%
1970s	79	76%	6%	3%	13%
1980s	235	71%	11%	3%	11%
1990s	728	63%	20%	4%	5%
2000s	1389	66%	16%	5%	5%
2010s	2971	68%	15%	4%	3%
2020s	724	76%	9%	3%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…b6	68%	76%	▲ +7.8%
8…Re8	15%	9%	▼ -6.0%
8…Qc7	4%	3%	▼ -0.6%
8…b5	3%	2%	▼ -1.5%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 4 parties
Kasparov, Garry — 3 parties
Alekhine, Alexander — 2 parties
Botvinnik, Mikhail — 2 parties
Carlsen, Magnus — 2 parties
Ju, Wenjun — 2 parties

Parties historiques

8…b6 — 68.2% (4281 parties)

1928 — Kostic, Boris vs Martinez Pokorny, Markel — 1-0 — Trencianske Teplice SVK
1937 — Flohr, Salo vs Ragozin, Viacheslav — 1/2-1/2 — Semmering AUT
1937 — Flohr, Salo vs Ragozin, Viacheslav — 1/2-1/2 — Semmering AUT
1938 — Kopaev, Nikolay A vs Levitas, B — 1-0 — Leningrad RUS
1938 — Eliskases, Erich vs Saemisch, Friedrich — 1-0 — Berlin GER

8…Re8 — 14.6% (919 parties)

1929 — Patay, Gyula vs Naegeli, Oskar — 1-0 — Venice ITA
1931 — Alatortsev, Vladimir N. vs Sorokin, Nikolay — 1-0 — Moskou ch-URS
1945 — Alekhine, Alexander vs Pomar Salamanca, Arturo — 1-0 — Gijon
1946 — Kable, John Richard vs Fryda, Alexander — 1/2-1/2 — Adelaide AUS
1946 — Opocensky, Karel vs Steiner, Heinrich Jun. — 1/2-1/2 — London ENG

8…Qc7 — 4.1% (259 parties)

1933 — Luckis, Marcos vs Voisin, Andreleon — 1-0 — Folkestone olm
1936 — Dake, Arthur William vs Kupchik, Abraham — 1-0 — New York ch-USA
1937 — Fine, Reuben vs Riello, M. — 1-0 — Stockholm SWE
1943 — Sajtar, Jaroslav vs Dietze, Max — 1-0 — Prague CZE
1949 — Bogoljubow, Efim vs Machate, Gottlieb — 1-0 — GER-ch Bad Pyrmont GER

8…b5 — 4.1% (259 parties)

1938 — Botvinnik, Mikhail vs Rabinovich, Ilya Mar — 0-1 — URS-ch sf Leningrad RUS
1942 — Concepcion Villegas, Bryan Uriel vs Bolbochan, J. — 1-0 — Mar del Plata ARG
1943 — Lokvenc, Josef vs Ropstorff — 1-0 — Wenen Rating
1948 — Szabo, Laszlo vs Tomovic, Vasilje — 1-0 — Budapest HUN
1950 — Kluger, Gyula vs Vajda, Arpad — 1/2-1/2 — Budapest HUN

Partie
1933 Folkestone olm – Round 10 – Luckis, Marcos – 1-0 – Voisin, Andreleon – G25 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nbd2 e6 5. g3 Nbd7 6. Bg2 Be7 7. O-O O-O 8. Qc2 Qc7 9. b3 Rd8 10. Bb2 Nf8
1937 Stockholm ol – Round 17 – Fine, Reuben – 1-0 – Riello, M. – G93 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Nbd7 5. Bg2 c6 6. Nbd2 Be7 7. O-O O-O 8. Qc2 Qc7 9. e4 dxe4 10. Nxe4 Nxe4
1943 Prague – Round 16 – Sajtar, Jaroslav – 1-0 – Dietze, Max – G128 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 c6 6. Nbd2 O-O 7. O-O Nbd7 8. Qc2 Qc7 9. b3 Ne8 10. e4 dxe4
1948 Venice – Round 1 – Opocensky, Karel – 1/2-1/2 – Szabados, Eugenio – G21 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. Qc2 Be7 6. Nf3 O-O 7. O-O Nbd7 8. Nbd2 c5 9. cxd5 Nxd5 10. Ne4 cxd4
1949 GER Ch Bad Pyrmont GER – Round ? – Bogoljubow, Efim – 1-0 – Machate, Gottlieb – G8 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Nbd2 c6 8. Qc2 Qc7 9. b3 Re8 10. Bb2 b6
1952 POL-ch10 – Round 11 – Plater, Kazimierz – 1/2-1/2 – Szymanski, Aleksander – G83 1. Nf3 Nf6 2. d4 e6 3. g3 d5 4. Bg2 Nbd7 5. O-O Be7 6. Nbd2 O-O 7. c4 c6 8. Qc2 Qc7 9. e4 dxe4 10. Nxe4 Nxe4
1960 Sao Paulo zt – Round 14 – Schweber, Samuel – 1/2-1/2 – Carvalho Da Costa, Fabiano – G74 1. Nf3 e6 2. d4 Nf6 3. g3 d5 4. Bg2 Nbd7 5. O-O Be7 6. c4 c6 7. Qc2 O-O 8. Nbd2 a5 9. e4 a4 10. Re1 b5
World Blitz 2019 – Round 12.54 – Yuffa, Daniil – 1-0 – Yanchenko, Roman – G832 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 h6 9. e4 dxe4 10. Nxe4 Nxe4
World Blitz 2023 – Round 21.11 – Muradli, Mahammad – 0-1 – Yu, Yangyi – G1175 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Qc2 Nbd7 8. Bf4 Nh5 9. Bc1 Nhf6 10. Nbd2 h6