C42s — Russian Game: Classical, Mason Variation

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O O-O * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte e5, Bd3 actif, paire de fous.
Faiblesses adverses : Bc8 enfermé.
Problèmes : Bc1 enfermé, 3 pièces non développées (B1, C1, A1).
Plans :
● Nbd2 — Développer Nb1
● Be3 — Développer Bc1
● h3 — Empêcher ...Bg4
● Re — Tour sur colonne e

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Be7 actif, paire de fous.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bc8 enfermé, 3 pièces non développées (B8, C8, A8).
Plans :
● ...Nbd7 — Développer Nb8
● ...Bg4 — Développer Bc8, clouer Nf3
● ...f6 — Rupture
● ...f5 — Rupture
● ...Re — Tour sur colonne e

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C42s — Russian Game: Classical Mason Variation

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O O-O

Eval: [+0.40]

Les coups candidats

8.c4 — 58.4% (1117 parties)

Ambassadeurs : Schubert, Steffen (12x), Johanson, Frans (11x), Abdulmanov, Eduard Nafikhovich (10x), Kulakiewicz, Mariusz (9x), Lacunza, Mario (9x), Weglarz, Leszek (8x), Plotkin, Victor (6x), Mason, James (5x)

8.Re1 — 34.8% (666 parties)

Ambassadeurs : Abdulmanov, Eduard Nafikhovich (7x), Stukalov, Mikhail Vasilievich (7x), Mason, James (6x), Kulakiewicz, Mariusz (5x), Lacunza, Mario (5x), Schubert, Steffen (4x), Tarrasch, Siegbert (3x), Schirmer, Michael (3x)

8.Nbd2 — 3.1% (59 parties)

Ambassadeurs : Carlson Maragia (2x), Li, Chao b (2x), Atunga Howard (1x), Kittson (1x), De Souza Mendes, Joao (1x), Prosdocimi, Arrigo (1x), Gibson Jr, William P (1x), Jensen, Arne-Roger (1x)

8.h3 — 1.4% (26 parties)

Ambassadeurs : MacKenzie, George H (1x), Medley, George (1x), Currie, Arthur Henry A (1x), Fotheringham, Alexander (1x), Bach Le Nguyen Khoi (1x), Penoyer, Flynn (1x), Marjanovic, Slavoljub (1x), Basoglu, Yilmaz (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.c4	8.Re1	8.Nbd2	8.h3
<1800	111	54%	38%	4%	1%
1800-2200	753	61%	34%	2%	1%
2200-2600	452	61%	34%	2%	1%
2600+	19	47%	32%	21%	—

Évolution par décennie (% des parties)

Décennie	N parties	8.c4	8.Re1	8.Nbd2	8.h3
1850s	1	—	—	—	—
1860s	8	75%	12%	—	12%
1870s	6	100%	—	—	—
1880s	12	92%	8%	—	—
1890s	10	20%	70%	—	10%
1900s	16	12%	81%	—	—
1910s	4	50%	50%	—	—
1920s	2	50%	—	50%	—
1930s	4	100%	—	—	—
1940s	3	33%	67%	—	—
1950s	10	60%	30%	10%	—
1960s	8	25%	75%	—	—
1970s	52	33%	54%	6%	6%
1980s	106	46%	46%	6%	1%
1990s	264	52%	39%	4%	1%
2000s	625	63%	31%	3%	2%
2010s	613	63%	31%	3%	1%
2020s	170	54%	42%	2%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.c4	63%	54%	▼ -8.5%
8.Re1	31%	42%	▲ +10.9%
8.Nbd2	3%	2%	-0.4%
8.h3	1%	1%	▼ -0.6%

Joueurs célèbres

Champions du monde dans cette position

Lasker, Emanuel — 1 partie
Anand, Viswanathan — 1 partie

Parties historiques

8.c4 — 58.4% (1117 parties)

1861 — Lichtenhein, Theodore vs Montgomery, Hardman Philips — 1-0 — Philadelphia, PA USA
1862 — Anderssen, Adolf vs Barnes, Thomas — 1-0 — London ENG
1865 — Knorre, VNeumann vs Bergell, RCordel, O — 1-0 — Berlin GER
1865 — Knorre Neumann vs Cordel Bergell — 1-0 — Berlin GER
1866 — MacKenzie, George H vs Barnett, James Parker — 1-0 — New York (New York CC)

8.Re1 — 34.8% (666 parties)

1860 — Medley, George vs Kolisch, Ignac — 1/2-1/2 — London ENG
1889 — Martinez, Dion M vs Mason, James — 1/2-1/2 — New York, NY USA
1890 — Tarrasch, Siegbert vs Mason, James — 1-0 — Manchester ENG
1890 — Tarrasch, Siegbert vs Mason, James — 1-0 — Manchester ENG
1892 — Alapin, Simon vs Mason, James — 0-1 — Dresden GER

8.Nbd2 — 3.1% (59 parties)

1924 — Atunga Howard vs Kittson — 1-0 — Hamilton
1958 — De Souza Mendes, Joao vs Prosdocimi, Arrigo — 1/2-1/2 — Rio de Janeiro BRA
1970 — Carlson Maragia vs Gibson Jr, William P — 0-1 — cr.
1970 — Carlson Maragia vs White, Russell — 1-0 — cr.
1978 — Lee, Courtney vs Jones, Brian — 0-1 — Buenos Aires ARG

8.h3 — 1.4% (26 parties)

1862 — MacKenzie, George H vs Medley, George — 1-0 — London ENG
1898 — Currie, Arthur Henry A vs Fotheringham, Alexander — 1-0 — British CC
1972 — Bach Le Nguyen Khoi vs Penoyer, Flynn — 1-0 — ?
1978 — Marjanovic, Slavoljub vs Basoglu, Yilmaz — 1-0 — Baile Herculane
1978 — Whitehead, Jay E vs Lawless, Kerry — 1/2-1/2 — San Francisco, CA USA

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v0)	—
Cases faibles	—	● g5
Centre	● d4 (1v0), ● e5 (2v0)	● d5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● e	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bd3	● Bd3 Actif (mob. 5)
Be7		● Be7 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	3 (b1, c1, a1)	3 (b8, c8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c2-c3	● …f7-f6, ● …f7-f5

Partie
1902 It (Men) Hanover GER – Round 3 – Cohn, Wilhelm – 1-0 – Pillsbury, Harry – G10 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Be7 6. Bd3 d5 7. O-O O-O 8. Re1 Nf6 9. Bg5 Nc6 10. h3 h6
1902 It (Men) Vienna AUT – Round 1 – Kostic, Boris – 1/2-1/2 – John, Walter – G4 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nf6 9. h3 Re8 10. c3 Bd6
1902 It (Men) Vienna AUT – Round 11 – Morrison, John – 1/2-1/2 – John, Walter – G14 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nf6 9. h3 Re8 10. Bf4 Nbd7
1902 Monte Carlo – Round 11 – Eisenberg, Louis R – 1-0 – Pillsbury, Harry – G50 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nf6 9. Ne5 c5 10. dxc5 Bxc5
1903 Monte Carlo – Round 17 – Reggio, Arturo – 1/2-1/2 – Mason, James – G31 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 f5 9. Ne5 Nc6 10. f3 Nxe5
1905 Hauptturnier A – Round 15 – Vidmar Milan – 1-0 – Englund, Fritz – G50 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nf6 9. Nc3 Nc6 10. Re1 Bg4
1907 Ostende II – Round 17 – Leonhardt, Paul – 1-0 – Mortimer, James – G209 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 f5 9. c4 c6 10. Nc3 Kh8
1923 Scheveningen – Round 4 – Norman Hansen, Holger – 0-1 – Olland, Adolf George – G49 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 c6 9. Nc3 Nxc3 10. bxc3 Be6
1933 BCF Ch 26th – Round 9 – Thomas, George Alan – 1-0 – Jameson, Francis Noel – G25 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 c6 9. Nc3 Nxc3 10. bxc3 dxc4
1933 Folkestone Olympiad 5th – Round 4.2 – Thomas, George Alan – 1-0 – Page, George – G37 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 c6 9. Qc2 f5 10. Nc3 Be6
1940 Ch URS Moscow RUS – Round 16 – Lisitsin, Georgy – 1/2-1/2 – Lilienthal, Andor – G11 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nf6 9. Nbd2 c5 10. dxc5 Bxc5
1940 New York ch-USA – Round 1 – Kashdan, Isaac – 1-0 – Kupchik, Abraham – G3 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nf6 9. Nc3 Nc6 10. c5 Bg4
1946 Helsinki – Round 5 – Kiuru, V. – 1/2-1/2 – Fred, Aatos – G12 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nd6 9. Nc3 c6 10. Ne5 Bf5
1950 BCF Ch 37th – Round 9 – Fuller, John Arthur – 1/2-1/2 – Thomas Andrew – G46 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nf6 9. cxd5 Nxd5 10. Nc3 Nc6
1952 JUG Ch Belgrade YUG – Round 11 – Bogdanovic, Rajko – 1/2-1/2 – Krzisnik, Zvonko – G10 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nd6 9. Bf4 Bg4 10. Nbd2 Nd7
1953 Opatija – Round 7 – Unzicker, Wolfgang – 1/2-1/2 – Porreca, Giorgio – G54 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nd6 9. Bf4 Bg4 10. Nbd2 Nd7
1959 Boehlen U20 – Round 4 – Rautenstrauch, Hans Hubert – 1-0 – Hennings, Artur – G7 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 c6 9. Qc2 f5 10. Ne5 Na6
1960 Sao Paulo zt – Round 13 – German, Eugenio – 1-0 – Perez Alcocer, Jose – G71 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Be7 6. Bd3 d5 7. O-O O-O 8. Re1 Nf6 9. Nbd2 Nc6 10. c3 Bd6
1965 Harrachov U26 – Round 6 – Plachetka, Jan – 1/2-1/2 – Tichy, Vladimir – G18 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Be7 6. Bd3 d5 7. O-O O-O 8. c4 Nf6 9. Ne5 c5 10. dxc5 Bxc5
1968 IBM – Round 15 – Ree, Hans – 1/2-1/2 – Langeweg, Kick – G50 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nf6 9. Nc3 dxc4 10. Bxc4 Bg4
1968 OWL Ch – Round 9 – Groenegress, Wilfried – 1-0 – Adam, Detlef – G17 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nf6 9. Ne5 Be6 10. Bf4 Nbd7
2026 Tata Steel Chess Masters - Round 4.3 - Abdusattorov, Nodirbek - 1-0 - Nguyen, Thai Dai Van - G24 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nc6 9. c4 Nf6 10. c5 Bg4
43. Olympiad 2018 – Round 8.7 – Van Foreest, Jorden – 1/2-1/2 – Li, Chao – G551 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Bf5 9. c4 Nc6 10. cxd5 Qxd5
7. Norway Chess 2019 – Round 6.2 – Anand, Viswanathan – 1/2-1/2 – Yu, Yangyi – G26 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Bf5 9. Nbd2 Nd6 10. Bxf5 Nxf5
Bugojno 1978 – Round 14 – Timman, Jan H – 1/2-1/2 – Hort, Vlastimil – G80 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Nd6 9. Bf4 Bg4 10. h3 Bxf3
FIDE World Cup 2017 – Round 2.1 – Sevian, Samuel – 1/2-1/2 – Li, Chao – G214 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nf6 9. h3 Nc6 10. Nc3 Nb4
Turin ol (Men) 37th 2006 – Round 12 – Adams, Michael – 1-0 – Ghaem Maghami, Ehsan – G157 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nf6 9. Nc3 dxc4 10. Bxc4 Nc6
World Blitz 2018 – Round 8.24 – Tsydypov, Zhamsaran – 1/2-1/2 – Ponkratov, Pavel – G470 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nc6 9. Re1 Nf6 10. cxd5 Nxd5
World Blitz 2019 – Round 19.97 – Zarubitski, Viachaslau – 1/2-1/2 – Xu, Xiangyu – G1322 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. Re1 Bf5 9. Bf4 Nc6 10. Nbd2 Nxd2

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