Archives des B53d - 3…cxd4 4.Qxd4 - Sicilian Chekhover Variation [+0.11]

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B53d — Sicilian Chekhover Variation

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4

Eval: [+0.11]

Les coups candidats

Ambassadeurs : Rodríguez Pérez, René (70x), Rodriguez, Raul (51x), Hlavac, Rudolf (46x), Paichadze, Luka (43x), Rozentalis, Eduardas (36x), Rodriguez Perez, Rene (34x), Lauer, Frederic (27x), Yandemirov, Valeri (26x)

4…a6 — 23.0% (5357 parties) →

Ambassadeurs : Hlavac, Rudolf (18x), Zhigalko, Sergei (17x), De Gleria, Francesco (16x), Zelcic, Robert (15x), Rozentalis, Eduardas (15x), Farago, Sandor (14x), Grund, Holger (13x), Macieja, Bartlomiej (13x)

4…Nf6 — 7.3% (1694 parties) →

Ambassadeurs : Paichadze, Luka (22x), Alekseev, Evgeny (17x), Rodriguez Perez, Rene (16x), Rodríguez Pérez, René (15x), Rodriguez, Raul (11x), Kacharava, Nikolozi (10x), Zhigalko, Sergei (9x), Wei, Yi (9x)

4…Bd7 — 6.2% (1440 parties) →

Ambassadeurs : Hlavac, Rudolf (10x), Damaso, Rui (7x), Vasiukov, Evgeni (7x), Vetemaa, Juri (6x), Groszpeter, Attila (6x), Kohlweyer, Bernd (6x), Kyc, Jerzy (6x), ? (5x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Nc6	4…a6	4…Nf6	4…Bd7
<1800	751	69%	19%	5%	5%
1800-2200	8590	65%	21%	5%	6%
2200-2600	9888	55%	27%	10%	6%
2600+	413	43%	21%	33%	3%

Évolution par décennie (% des parties)

Décennie	N parties	4…Nc6	4…a6	4…Nf6	4…Bd7
1930s	5	100%	—	—	—
1940s	20	90%	—	—	10%
1950s	103	76%	7%	6%	11%
1960s	160	64%	9%	3%	22%
1970s	580	46%	31%	2%	21%
1980s	864	63%	25%	2%	9%
1990s	3779	61%	25%	3%	9%
2000s	5959	64%	24%	3%	7%
2010s	8727	61%	25%	7%	5%
2020s	3108	63%	11%	23%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Nc6	61%	63%	▲ +2.1%
4…a6	25%	11%	▼ -13.7%
4…Nf6	7%	23%	▲ +15.7%
4…Bd7	5%	2%	▼ -3.0%

Joueurs célèbres

Champions du monde dans cette position

Hou, Yifan — 10 parties
Ju, Wenjun — 10 parties
Carlsen, Magnus — 9 parties
Tal, Mikhail — 7 parties
Karpov, Anatoly — 7 parties
Anand, Viswanathan — 7 parties
Kasparov, Garry — 6 parties
Karpov, Aleksandr — 1 partie
Gukesh D — 1 partie
Ding, Liren — 1 partie

Parties historiques

4…Nc6 — 61.5% (14340 parties)

1936 — Uulberg V vs Kremer, Laurent — 0-1 — Munich GER
1937 — Quigley Oscar A vs Cox, Thomas — 1/2-1/2 — ?
1938 — Chekhover, Vitaly vs Lisitsin, Georgy — 1/2-1/2 — URS-ch sf Leningrad RUS
1939 — Szabo, Laszlo vs Landau, Salo — 1/2-1/2 — Amsterdam/Rotterdam
1939 — Szily, Jozsef vs Bogoljubow, Efim — 0-1 — Stuttgart GER

4…a6 — 23.0% (5357 parties)

1950 — Popov, Vesselin vs Milev, Zdravko — 0-1 — Sofia BUL
1951 — Urseanu, Veniamin vs Molnar, Imre — 0-1 — Bucharest ROU
1952 — Dantas, Nelson vs Eidelman Mauricio — 1/2-1/2 — Rio de Janeiro BRA
1954 — Mengarini, Ariel vs Evans Lianda — 0-1 — New York, NY USA
1955 — Redolfi, Argentino Rodolfo vs Najdorf, Miguel — 0-1 — Buenos Aires ARG

4…Nf6 — 7.3% (1694 parties)

1951 — Bialas, Wolfram vs Malich, Burkhard, Dr. — 0-1 — Leipzig GER
1954 — Robatsch, Karl vs Larsen, Benjamin Holsko — 1/2-1/2 — Amsterdam NED
1956 — Olafsson, Fridrik vs Larsen, Benjamin Holsko — 0-1 — Reykjavik ISL
1956 — Szabo, Ladislav vs Larsen, Benjamin Holsko — 0-1 — Hastings ENG
1956 — Maderna, Carlos vs Shocron, Ruben — 1/2-1/2 — Mar del Plata ARG

4…Bd7 — 6.2% (1440 parties)

1946 — Shipman, Walter vs Fajans, Harry — 1/2-1/2 — Pittsburgh
1947 — Dantas, Nelson vs Almeida Soares Jose C — 1-0 — Rio de Janeiro BRA
1952 — Dantas, Nelson vs Eliskases, Erich — 0-1 — Rio de Janeiro BRA
1955 — Molnar, Francois vs Rosenberg, Sergei G — 1-0 — Paris FRA
1955 — Portisch, Lajos vs Florian, Tibor — 1-0 — Hungary ch

Partie
1955 Ljubljana – Round 14 – Robatsch, Karl – 0-1 – Gabrovsek Zdravko – G120 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 e5 5. Qd1 Nf6 6. Nc3 Be7 7. Bc4 O-O 8. O-O Bg4 9. h3 Bh5 10. Re1 Qd7
1960 Leipzig olm fin-C – Round 10 – Myagmarsuren, Lkhamsuren – 1-0 – Mendivil Salinas, Ismael – G57 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nd7 5. Nc3 Ngf6 6. Bg5 a6 7. O-O-O e5 8. Qa4 h6 9. Bxf6 Qxf6 10. Nb5 Rb8
World Rapid 2019 – Round 8.74 – Piorun, Kacper – 1-0 – Tissir, Mohamed – G545 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nd7 5. Be2 Ngf6 6. c4 e5 7. Qe3 Be7 8. Nc3 O-O 9. O-O Nc5 10. h3 a5

1955 Ljubljana – Round 14 – Robatsch, Karl – 0-1 – Gabrovsek Zdravko – G120

1960 Leipzig olm fin-C – Round 10 – Myagmarsuren, Lkhamsuren – 1-0 – Mendivil Salinas, Ismael – G57

World Rapid 2019 – Round 8.74 – Piorun, Kacper – 1-0 – Tissir, Mohamed – G545