Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→c6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● c5 (2v1), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0)	● d5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● e	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (● g1, ● c1, ● f1, ● a1, ● h1)	5 (● g8, ● c8, ● f8, ● a8, ● h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Au centre	● Au centre
Droits de roque	O-O / O-O-O	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	● d4-d5	● …c6-c5, ● …e7-e5

B17a — Caro-Kann: Steinitz Variation

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bc4 (Fou actif (mobilité 9), Développer f1 — 44 % des parties) ; Nf3 (Développer g1 — 41 % des parties) ; Ng5 (8 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Ngf6 (Développer g8 — 92 % des parties) ; ...Ndf6 (4 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1931 Praag predolympijsky – Round ? – Skalicka, Karel – 1/2-1/2 – Richter, Emil – G20 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bc2 Bg4 9. Ne2 e6 10. O-O Bd6
1948 South Fallsburg ch-USA – Round 1 – Kashdan, Isaac – 1-0 – Shainswit, George – G68 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. c3 Nxe4 7. Bxe4 Nf6 8. Bc2 Bg4 9. Ne2 e6 10. O-O Bd6
1950 Hungary – Round 1 – Pogats, Jozsef Jr. – 1/2-1/2 – Füster, Géza – G61 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. c3 Nxe4 7. Bxe4 Nf6 8. Bc2 Bg4 9. f3 Bh5 10. Ne2 e6
1951 Budapest HUN – Round ? – Honfi, Karoly – 1-0 – Bilek, Istvan – G20 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Nxf6+ Nxf6 7. c3 g6 8. Bf4 Bg7 9. h3 O-O 10. Nf3 Qb6
1951 Hungary Ch – Round ? – Gecsei, Istvan – 1-0 – Florian, Tibor – G91 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bc2 g6 9. Nf3 Bg7 10. Ne5 Qc7
1951 Hungary Ch – Round 1 – Pogats, Jozsef Jr. – 0-1 – Barcza, Gedeon – G21 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 g6 8. Ne2 Bg7 9. O-O O-O 10. Qc2 e5
1962 Gera ch GDR – Round 3 – Boehnisch, Manfred – 0-1 – Starck, Bodo – G4 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Ne2 Nxe4 7. Bxe4 Nf6 8. f3 Nxe4 9. fxe4 e5 10. d5 Bc5
1963 Capablanca Memorial – Round 12 – Letelier Martner, Rene – 0-1 – Barcza, Gedeon – G114 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Qe2 Ndf6 6. Bf4 Nxe4 7. Qxe4 Nf6 8. Qd3 Qd5 9. c4 Qf5 10. Qxf5 Bxf5
1963 Reggio Emilia 6364 06th – Round 6 – Bonfioli, Marco – 0-1 – Gereben, Erno – G20 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ndf6 6. Nf3 Nxe4 7. Bxe4 Nf6 8. Bd3 Bg4 9. c3 e6 10. Qe2 Bd6
1964 Hastings6465 – Round 7 – Mardle, Denis – 0-1 – Pfleger, Helmut, Dr. – G33 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. f4 Ngf6 6. Nf2 Qa5+ 7. c3 e6 8. Nf3 c5 9. Be2 cxd4 10. Nxd4 Be7
1964 Rubinstein Memorial – Round 15 – Novopashin, Arkady – 1/2-1/2 – Hort, Vlastimil – G47 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Ng5 e6 7. Be3 Bd6 8. Qc2 h6 9. N5f3 Qc7 10. O-O-O b6
1964 WchT U26 11. fin-A – Round 8.4 – Romm, Meir – 1-0 – Sloth, Jorn – G145 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. c4 Ndf6 6. Nc3 g6 7. Nf3 Bg7 8. h3 h5 9. Be2 Nh6 10. Bg5 Bf5
1964 WchT U26 11. qual-B – Round 3.4 – Nemet, Ivan – 1/2-1/2 – Sloth, Jorn – G15 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Qe2 Ndf6 6. Nxf6+ Nxf6 7. Nf3 Bg4 8. c3 Qd5 9. Be3 e6 10. h3 Bxf3
1965 Sinaia stud ol prel – Round 1 – Fritsche, Uta – 1/2-1/2 – Kagan, Shimon – G3 1. e4 c6 2. Nc3 d5 3. d4 dxe4 4. Nxe4 Nd7 5. Qe2 e6 6. Bf4 Ndf6 7. Nf3 Nxe4 8. Qxe4 Nf6 9. Qe5 Nd5 10. Bd2 Qd6
1966 Hoogovens 28th – Round 12 – Cuijpers, Frans Andre – 1/2-1/2 – Filip, Miroslav – G35 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Nxf6+ Nxf6 7. c3 Bg4 8. f3 Bh5 9. Ne2 Bg6 10. Nf4 Bxd3
1967 Moscow – Round 1 – Bronstein, David I – 1/2-1/2 – Petrosian, Tigran A. – G105 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Ng3 e6 7. Nf3 c5 8. Bd3 cxd4 9. Nxd4 Be7 10. O-O Ne5
1968 Bristol ch-BCF – Round 3 – Aabel Thomas Eapen – 1/2-1/2 – Golombek, Harry – G38 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. d5 Ngf6 6. dxc6 Nxe4 7. cxd7+ Bxd7 8. Nf3 e6 9. Bd3 Nc5 10. Be2 Qc7
Amber-rapid 5th 1996 – Round 11 – Polgar, Judit – 1-0 – Karpov, Anatoly – G50 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ndf6 6. Nxf6+ Nxf6 7. Nf3 Bg4 8. c3 Qd5 9. Be2 e6 10. h3 Bh5
Optiebeurs 1988 – Round 3 – Van der Wiel, John T.H. – 1/2-1/2 – Karpov, Anatoly – G15 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bd3 Ndf6 6. Ng5 Bg4 7. N1f3 Bh5 8. c3 e6 9. Qb3 Qc7 10. Ne5 Bd6
Tal Memorial 8th 2013 – Round 7.1 – Carlsen, Magnus – 1/2-1/2 – Morozevich, Alexander – G7 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. c3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 Qd5 8. f3 Bf5 9. Ne2 Bxd3 10. Nf4 Qg5
World Championship FIDE 2005 – Round 1 – Polgar, Judit – 0-1 – Anand, Viswanathan – G1 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Nf3 Nxe4 7. Bxe4 Nf6 8. Bd3 Bg4 9. Be3 e6 10. c3 Bd6

B17a — Steinitz Variation (1931)

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7

Les coups candidats

5.Nf3 — 39.5% (11435 parties) →

Ambassadeurs : Meduna, Eduard (65x), Karpov, Anatoly (44x), Spiridonov, Nikola (27x), Vogt, Lothar (25x), Tiviakov, Sergei (25x), Tal, Mikhail (18x), Beck, Georges (17x), Ciric, Dragoljub M (15x)

5.Bc4 — 27.1% (7859 parties) →

Ambassadeurs : Meduna, Eduard (59x), Speelman, Jon S (46x), Eperjesi, Laszlo Dr. (27x), Karpov, Anatoly (25x), Pfleger, Helmut, Dr. (21x), Spiridonov, Nikola (21x), Filip, Miroslav (19x), Stabenow, Juergen (16x)

5.Ng5 — 23.1% (6682 parties) →

Ambassadeurs : Arkell, Keith C (64x), Karpov, Anatoly (60x), Meduna, Eduard (56x), Eperjesi, Laszlo Dr. (33x), Speelman, Jon S (33x), Danielian, Elina (19x), Almasi, Zoltan (16x), Adams, Michael (16x)

5.Bd3 — 5.6% (1614 parties)

Ambassadeurs : Pogonina, Natalija (9x), Kovacs, Arthur Dr. (6x), Socko, Bartosz (6x), Karpov, Anatoly (5x), De Firmian, Nick (5x), Gulko, Boris (4x), Van der Wiel, John T.H. (3x), Cuijpers, Frans Andre (3x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.Nf3	5.Bc4	5.Ng5	5.Bd3
<1800	2062	48%	23%	16%	5%
1800-2200	11631	43%	25%	21%	6%
2200-2600	9290	33%	26%	32%	6%
2600+	470	32%	21%	40%	5%

Évolution par décennie (% des parties)

Décennie	N parties	5.Nf3	5.Bc4	5.Ng5	5.Bd3
1950s	198	72%	23%	—	2%
1960s	585	39%	57%	—	1%
1970s	823	45%	51%	—	1%
1980s	1967	39%	44%	10%	5%
1990s	6840	35%	35%	21%	5%
2000s	9702	37%	24%	29%	6%
2010s	7517	44%	18%	26%	6%
2020s	1346	49%	10%	22%	9%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.Nf3	44%	49%	▲ +4.7%
5.Bc4	18%	10%	▼ -7.8%
5.Ng5	26%	22%	▼ -3.2%
5.Bd3	6%	9%	▲ +3.2%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 10 parties
Karpov, Anatoly — 10 parties
Kasparov, Garry — 10 parties
Anand, Viswanathan — 10 parties
Ding, Liren — 10 parties
Hou, Yifan — 8 parties
Carlsen, Magnus — 5 parties
Karpov, Aleksandr — 3 parties
Smyslov, Vladimir — 2 parties
Kramnik, Vladimir — 2 parties
Gukesh D — 1 partie

Parties historiques

5.Nf3 — 39.5% (11435 parties)

1950 — Kostic, Boris vs Vidmar, Milan Sr — 0-1 — Bled SLO
1950 — Johansson, Ingi Randver vs Bosch van Rosenthal, Edzard — 1-0 — Dubrovnik CRO
1950 — Pinkus, Albert vs Matanovic, Aleksandar — 0-1 — USA
1950 — Rossolimo, Nicolas vs Bosch van Rosenthal, Edzard — 1-0 — Amsterdam NED
1950 — Pogats, Jozsef Jr. vs Al Husari, Zita Fatima — 1-0 — Schiavno Zdroj

5.Bc4 — 27.1% (7859 parties)

1950 — Phillips, Alan vs Golombek, Harry — 1/2-1/2 — Hastings ENG
1950 — Niephaus, Walter vs Machate, Gottlieb — 0-1 — Bad Pyrmont GER
1950 — Bunyola Oliver, Pedro Antonio vs Juehe, Heinrich — 0-1 — Hastings ENG
1951 — Milic, Borislav vs Pilnik, Herman — 1-0 — Vienna AUT
1952 — Gusev, Yuri vs Flohr, Salo — 0-1 — Moscow RUS

5.Ng5 — 23.1% (6682 parties)

1983 — Semenova, Lidia K vs Juncu, Margareta — 0-1 — Bad Kissingen GER
1984 — Wasjakin vs Johansson, Per 1967 — 0-1 — cr WC
1985 — Druon, Roger vs Weinitschke, Guenter — 0-1 — WT/M/GT/351 corr
1985 — Kremer, Mark vs BAKKER ELLIOTT — 1-0 — Netherlands tt
1986 — Arnason, Jon L vs Burger, Karl — 1-0 — Reykjavik ISL

5.Bd3 — 5.6% (1614 parties)

1950 — Pogats, Jozsef Jr. vs Füster, Géza — 1/2-1/2 — Budapest HUN
1951 — Honfi, Karoly vs Bak, Istvan — 1-0 — Budapest HUN
1951 — Gecsei, Istvan vs Szabadi, Elemer — 1/2-1/2 — Hungary ch
1962 — Boehnisch, Manfred vs Starck, Bodo — 0-1 — Gera ch GDR
1963 — Bonfioli, Marco vs Gereben, Erno — 0-1 — Reggio Emilia ITA

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