C49f — Four Knights: Janowski Variation

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 Bxc3 7.bxc3 d6 8.Re1 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur les cases fortes c4 et g5, un fou actif en b5, la paire de fous et la colonne semi-ouverte b.

Côté adverse. Le fou enfermé en c8.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1) et le pion isolé a2.

Plans. Bg5 (Clouer Nf6) ; h3 (Empêcher ...Bg4) ; c3 (Préparer d4) ; Tour sur colonne b.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la case forte g4.

Côté adverse. Le pion isolé a2, le fou enfermé en c1 et un mauvais fou en b5.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...Bg4 (Développer Bc8, clouer Nf3) ; ...d5 (Rupture).

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	● c2, ● c3	—
Pions isolés	● a2	—
Arriérés	—	—
Chaînes	● c2→d3, d3→e4	● d6→e5, c7→d6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● c4 (2v0), ● g5 (2v0)	● g4 (2v0)
Cases faibles	—	—
Centre	● e4 (2v1)	● e5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	—

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bb5	● Bb5 Actif (mob. 4)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	Non
Non développées	2 (c1, a1)	2 (c8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c3-c4, ● d3-d4	● …d6-d5

Partie
1900 DSB-12.Kongress – Round 12 – D Marco, Gianni – 1/2-1/2 – Billecard, Moritz – G73 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bb4 5. d3 d6 6. O-O Bxc3 7. bxc3 O-O 8. Re1 Bd7 9. Rb1 Ne7 10. d4 exd4
1900 DSB-12.Kongress – Round 3 – D Marco, Gianni – 1-0 – Halprin, Alexander – G19 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. d3 d6 6. O-O Bxc3 7. bxc3 O-O 8. Re1 Bg4 9. d4 Nd7 10. h3 Bxf3
1900 Paris – Round 1 – Janowski, Dawid – 0-1 – Pillsbury, Harry – G22 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bd7 9. Rb1 Re8 10. Bg5 h6
1900 Paris – Round 10 – Janowski, Dawid – 0-1 – Pillsbury, Harry – G72 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bd7 9. Rb1 Re8 10. Bg5 h6
1900 Paris – Round 9 – Janowski, Dawid – 1-0 – Showalter, Jackson – G66 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 Bd7 10. Rb1 c6
1902 DSB-13.Kongress – Round 6 – Gunsberg, Isidor – 1/2-1/2 – Mason, James – G29 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 c6 10. Bd3 Ng6
1906 DSB-15.Kongress – Round 11 – Janowski, Dawid – 0-1 – Vidmar, Milan Sr – G62 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bg4 9. Rb1 Rb8 10. h3 Bh5
1906 Ostende – Round 1 – Janowski, Dawid – 0-1 – Teichmann, Richard – G34 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bg4 9. h3 Bd7 10. Rb1 b6
1907 Karlsbad – Round 7 – Janowski, Dawid – 1-0 – Vidmar Milan – G162 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Qe7 9. d4 Bg4 10. h3 Bh5
1909 New York – Round 16 – Capablanca, Jose – 1/2-1/2 – Marshall Viele, Fabrizio Aaron – G7 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 c6 10. dxe5 dxe5
1909 St Petersburg – Round 1 – Fleischmann, Leo – 1/2-1/2 – Vidmar Milan – G76 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Qe7 9. d4 Nd8 10. Bf1 c5
1925 BCF Ch 18th – Round 9 – Yates, Fred Dewhirst – 1-0 – Tylor, Theodore Henry – G38 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bg4 9. h3 Bh5 10. d4 exd4
1934 BCF Ch 27th – Round 9 – Tylor, Theodore Henry – 1/2-1/2 – Thomas, George Alan – G48 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 c6 10. Bd3 Ng6
1936 Nottingham – Round 11 – Tylor, Theodore Henry – 1/2-1/2 – Vidmar, Milan Sr – G86 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Qe7 9. Qe2 Nd8 10. d4 c5
1936 Podebrady – Round 9 – Zinner, Emil – 0-1 – Treybal, Karel – G40 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bd7 9. d4 Ne7 10. dxe5 dxe5
1945 Moscow Ch – Round 13 – Panov, Vasily – 1-0 – Alatortsev, Vladimir N. – G74 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 a6 9. Ba4 h6 10. d4 Nd7
1945 URS-sf – Round 9 – Liublinsky, Victor – 0-1 – Alatortsev, Vladimir N. – G37 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Qe7 9. d4 Nd8 10. Ba3 c5
1946 Moscow RUS – Round 1 – Panov, Vasily – 1-0 – Alatortsev, Vladimir N. – G48 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 a6 9. Ba4 Qe7 10. Ba3 Na7
1947 Sverdlovsk – Round 1 – Chistiakov, Alexander – 1/2-1/2 – Shamaev, Leonid – G13 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bd7 9. Rb1 Re8 10. Bg5 a6
1949 Budapest-Moscow – Round 4 – Simagin, Vladimir – 1-0 – Vajda, Arpad – G29 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bg4 9. h3 Bxf3 10. Qxf3 Nd7
1949 Hastings4950 – Round 6 – Koenig, Imre – 0-1 – Fuller, Jack – G26 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Qe7 9. h3 a6 10. Bc4 Na5
1949 Moscow Ch – Round 1 – Steinsapir, Yury – 0-1 – Bonch-Osmolovsky, Mikhail – G36 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bd7 9. d4 Ne7 10. Bf1 Ng6
1949 URS Ch, semi final – Round 1 – Khasin, Abram – 1-0 – Bonch-Osmolovsky, Mikhail – G82 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 Ng6 10. dxe5 dxe5
1951 Mar del Plata zt – Round 18 – Guimard, Carlos E – 1/2-1/2 – Alvarez Martin, Pedro – G178 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Qe7 9. d4 Nd8 10. Bf1 c5
1957 FRG Ch Bad Neuenahr – Round 6 – Schuster, Theodor – 1/2-1/2 – Rellstab, Ludwig Sr – G20 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 c6 10. Bf1 Ng6
1959 CSR Ch – Round 13 – Hort, Vlastimil – 1/2-1/2 – Kupka, Slavoj – G103 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bb5 Bb4 5. d3 d6 6. O-O Bxc3 7. bxc3 O-O 8. Re1 Ne7 9. d4 c6 10. Bf1 Ng6
3. Pearl Spring 2010 – Round 10 – Carlsen, Magnus – 1/2-1/2 – Gashimov, Vugar – G17 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bd7 9. Rb1 a6 10. Bxc6 Bxc6
Horgen CS 1994 – Round 4 – Shirov, Alexei – 1/2-1/2 – Leko, Peter – G15 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 h6 9. d4 Bd7 10. h3 Re8
Saint Louis Blitz 2023 – Round 17.4 – So, Wesley – 1/2-1/2 – Xiong, Jeffery – G84 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Bd7 9. d4 Re8 10. Bxc6 Bxc6
Tal Memorial Blitz 2014 – Round 5.6 – Grischuk, Alexander – 1/2-1/2 – Leko, Peter – G30 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 a6 9. Bxc6 bxc6 10. Bg5 h6
Torino 1982 – Round 6 – Spassky, Boris V. – 1/2-1/2 – Kavalek, Lubomir – G15 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. d3 O-O 6. O-O Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 c6 10. Bf1 Ng6
World Blitz 2023 – Round 12.11 – Praggnanandhaa R – 0-1 – Murzin, Volodar – G672 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 c6 10. Bd3 Ng6
World Blitz 2023 – Round 16.45 – Iljiushenok, Ilia – 1/2-1/2 – Hovhannisyan, Razmik – G931 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1 Ne7 9. d4 Ng6 10. dxe5 dxe5

C49f — Janowski Variation

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 Bxc3 7.bxc3 d6 8.Re1

Eval: [+0.15]

Les coups candidats

8…Ne7 — 25.5% (75 parties)

Ambassadeurs : Capablanca, Jose (2x), Kobzar, Alexandr (2x), Huse, Sigurd Kjelsbol (2x), Shuvalova, Polina (2x), Llorente Alvarez, José Luis (2x), Iljiushenok, Ilia (2x), Ilincic, Zlatko (2x), White, Max (1x)

8…Bd7 — 20.4% (60 parties)

Ambassadeurs : Billecard, Moritz (2x), Marco, Georg (2x), Janowski, Dawid (2x), Pillsbury, Harry (2x), Ni, Hua (2x), Tomashevsky, Evgeny (2x), Tarrasch, Siegbert (1x), Schlechter, Carl (1x)

8…Qe7 — 19.0% (56 parties)

Ambassadeurs : Vidmar Milan (2x), Vidmar, Milan Sr (2x), Fleischmann, Leo (1x), Johner, Paul (1x), Barasz, Zsigmond (1x), Simonson, Albert Charles (1x), Suesman, Walter B (1x), Janowski, Dawid (1x)

8…h6 — 13.9% (41 parties)

Ambassadeurs : Shuvalova, Polina (3x), Podlesnik, Bogdan (2x), Smagin, Sergey (1x), Glek, Igor (1x), Istratescu, Andrei (1x), Ionescu, Constantin (1x), Comas Fabrego, Lluis (1x), Pavlovic, Milos (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8…Ne7	8…Bd7	8…Qe7	8…h6
<1800	2	—	—	100%	—
1800-2200	59	36%	15%	20%	12%
2200-2600	157	23%	23%	15%	18%
2600+	18	17%	33%	11%	17%

Évolution par décennie (% des parties)

Décennie	N parties	8…Ne7	8…Bd7	8…Qe7	8…h6
1880s	1	100%	—	—	—
1890s	4	—	25%	—	—
1900s	15	33%	33%	13%	—
1910s	2	50%	—	50%	—
1920s	3	33%	—	33%	—
1930s	5	20%	20%	60%	—
1940s	8	12%	25%	25%	—
1950s	7	29%	—	57%	—
1960s	1	100%	—	—	—
1970s	1	100%	—	—	—
1980s	8	38%	—	38%	12%
1990s	33	24%	12%	33%	21%
2000s	50	28%	16%	14%	18%
2010s	93	19%	27%	16%	13%
2020s	63	29%	22%	11%	19%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8…Ne7	19%	29%	▲ +9.2%
8…Bd7	27%	22%	▼ -4.7%
8…Qe7	16%	11%	▼ -5.0%
8…h6	13%	19%	▲ +6.1%

Joueurs célèbres

Champions du monde dans cette position

Carlsen, Magnus — 1 partie

Parties historiques

8…Ne7 — 25.5% (75 parties)

1882 — White, Max vs Englisch, Berthold — 1/2-1/2 — Vienna AUT
1900 — Janowski, Dawid vs Showalter, Jackson — 1-0 — Paris FRA
1902 — Gunsberg, Isidor vs Mason, James — 1/2-1/2 — Hannover GER
1909 — Nikolaev, Bogdan vs Maliutin, Boris — 0-1 — St Petersburg RUS
1909 — Capablanca, Jose vs Marshall, Frank — 1/2-1/2 — New York, NY USA

8…Bd7 — 20.4% (60 parties)

1898 — Tarrasch, Siegbert vs Schlechter, Carl — 1-0 — ?
1900 — D Marco, Gianni vs Billecard, Moritz — 1/2-1/2 — Munich GER
1900 — Marco, Georg vs Billecard — 1/2-1/2 — Mnchen,
1900 — Marco, Georg vs Billecard, Moritz — 1/2-1/2 — Berlijn
1900 — Janowski, Dawid vs Pillsbury, Harry — 0-1 — Paris FRA

8…Qe7 — 19.0% (56 parties)

1907 — Janowski, Dawid vs Vidmar Milan — 1-0 — Carlsbad CZE
1909 — Fleischmann, Leo vs Vidmar Milan — 1/2-1/2 — St Petersburg RUS
1910 — Johner, Paul vs Barasz, Zsigmond — 1/2-1/2 — Hamburg GER
1922 — Rabinovich, Ilya Mar vs Gothilf, Solomon Borisovich — 1-0 — Petrograd
1936 — Tylor, Theodore Henry vs Vidmar, Milan Sr — 1/2-1/2 — Nottingham ENG

8…h6 — 13.9% (41 parties)

1984 — Smagin, Sergey vs Glek, Igor — 1-0 — URS-ch sf Tashkent UZB
1994 — Shirov, Alexei vs Leko, Peter — 1/2-1/2 — Horgen SUI
1995 — Istratescu, Andrei vs Ionescu, Constantin — 1/2-1/2 — Bucharest ROU
1995 — Comas Fabrego, Lluis vs Pavlovic, Milos — 1/2-1/2 — Terrassa ESP
1996 — Minaeifard A vs Kanan Azer, Nasser — 0-1 — Iran

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