Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● a2→b3, b3→c4	● c6→d5, b7→c6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	—
Cases faibles	—	—
Centre	● d4 (1v0), ● e5 (1v0)	● d5 (2v1), ● e4 (1v0)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 2)
Bf1	● Bf1 Non développé (mob. 0)
Bc8		● Bc8 Non développé (mob. 5)
Bf8		● Bf8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● c1, ● f1, ● a1, ● h1)	6 (● b8, ● 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	● e2-e4	—

A12a — English: Caro-Kann Defence, 3.b3

1.c4 c6 2.Nf3 d5 3.b3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bb2 (Fianchetto, fou sur la grande diagonale — 59 % des parties) ; g3 (Préparer le fianchetto — 26 % des parties) ; e3 (Libérer Bf1, préparer Bd3 — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nf6 (Développer g8 — 56 % des parties) ; ...Bg4 (Fou actif (mobilité 7), Développer c8 — 19 % des parties) ; ...Bf5 (Fou actif (mobilité 10), Développer c8 — 19 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1924 BCF Ch 17th – Round 2 – Scott, Roland Henry – 1-0 – Michell, Reginald – G11 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. Bb2 e6 5. h3 Nf6 6. g4 Bg6 7. Bg2 Nbd7 8. d3 Bd6 9. Nbd2 Qe7 10. a3 h6
1928 Bradley Beach – Round 4 – Horowitz, Albert Israel – 1-0 – Turover, Isador – G10 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. g3 e6 5. Bg2 Be7 6. O-O Bf6 7. d4 Nd7 8. Bb2 Qc7 9. Nbd2 Ne7 10. Re1 O-O
1930 Hamburg olm – Round 12.2 – Lokvenc, Josef – 1-0 – Feigin, M. – G36 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. g3 Nd7 5. Bb2 Ngf6 6. Bg2 e6 7. O-O Bd6 8. d3 O-O 9. Nc3 Qe7 10. Nh4 Bg4
1936 UJCS-14.Kongress – Round 10 – Olexa, Vilem – 1/2-1/2 – May, Desider – G25 1. c4 c6 2. Nf3 d5 3. b3 Bf5 4. g3 e6 5. Bg2 h6 6. O-O Nf6 7. Bb2 Nbd7 8. d3 Be7 9. Nbd2 O-O 10. Ne1 a5
1937 Brno – Round 2 – Florian, Jaromir – 1/2-1/2 – Pedmanson, Herman – G5 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Qc2 g6 5. Bb2 Bg7 6. g3 O-O 7. Bg2 Nbd7 8. O-O dxc4 9. bxc4 Qc7 10. d4 Nh5
1947 GBR Ch 34th – Round 5 – Golombek, Harry – 0-1 – Milner Barry, Philip – G20 1. c4 c6 2. Nf3 d5 3. b3 Bf5 4. Bb2 e6 5. g3 Nd7 6. Bg2 Ngf6 7. O-O Bd6 8. d4 O-O 9. Nbd2 Qe7 10. a3 Rad8
1947 Nt – Round 5 – Ernst, Wilhelm – 1/2-1/2 – Elsas, Hansgeorg – G17 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. Bb2 e6 5. e3 Nf6 6. Be2 Nbd7 7. O-O h6 8. Nc3 Bh7 9. Rc1 Bd6 10. d4 O-O
1948 OWL Ch – Round 9 – De Meyer, Alexander – 1/2-1/2 – Skema – G13 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. Bb2 e6 5. g3 h6 6. Bg2 Nf6 7. O-O Nbd7 8. Nc3 Be7 9. d3 O-O 10. Re1 Bb4
1948 US Open – Round 5 – Pavey, Max – 0-1 – Kashdan, Isaac – G31 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 g6 5. Bb2 Bg7 6. Bg2 O-O 7. O-O a5 8. d3 a4 9. Nbd2 Re8 10. Qc2 Na6
1952 Paignton Premier 2nd – Round 2 – Kitto, Francis E A – 0-1 – Fairhurst, William – G6 1. Nf3 d5 2. c4 c6 3. b3 d4 4. Bb2 c5 5. b4 e6 6. e3 dxe3 7. fxe3 cxb4 8. d4 f5 9. Bd3 Nf6 10. O-O Bd6
1954 Belgrade – Round 7 – Milic, Borislav – 1/2-1/2 – Rabar, Braslav – G71 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. Bb2 e6 5. g3 Nd7 6. Bg2 Ngf6 7. O-O h6 8. d3 Be7 9. Nbd2 O-O 10. Qc2 Bh7
1955 CAN Ch – Round 9 – Vaitonis, Povilas – 1/2-1/2 – Fuster, Geza – G38 1. c4 c6 2. Nf3 d5 3. b3 Bf5 4. Bb2 e6 5. g3 h6 6. Bg2 Nf6 7. O-O Nbd7 8. d3 Bc5 9. Nbd2 O-O 10. Re1 Qb6
1957 POL Ch 15th – Round 7 – Doda, Zbigniew – 0-1 – Solecki, Zbigniew – G9 1. c4 c6 2. Nf3 d5 3. b3 Nf6 4. g3 g6 5. Bg2 Bg7 6. Bb2 O-O 7. O-O Nbd7 8. cxd5 cxd5 9. Qc2 b6 10. Nc3 Bb7
1958 Munich olm fin-C – Round 4 – Oliveira Freitas, Paulo Roberto – 0-1 – Aitken, James – G9 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. g3 Nd7 5. Bb2 e6 6. Bg2 Ngf6 7. O-O Be7 8. d3 h6 9. Nbd2 Qb6 10. Qc2 O-O
1960 Madrid zt playoff – Round 2 – Donner, Jan-Hein – 0-1 – Pomar Salamanca, Arturo – G4 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 dxc4 5. bxc4 e5 6. Qc2 Bc5 7. Nc3 Bg4 8. Nxe5 Bxf2+ 9. Kxf2 Qd4+ 10. e3 Qxe5
1962 Asztalos Memorial 5th – Round 8 – Haag, Ervin – 1/2-1/2 – Kholmov, Ratmir D – G61 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. g3 e6 5. Bg2 Be7 6. O-O Bf6 7. d4 Nd7 8. cxd5 cxd5 9. Nc3 Ne7 10. Bf4 a6
1968 Bristol ch-BCF – Round 7 – Golombek, Harry – 1-0 – Aitken, James – G82 1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. Bb2 e6 5. g3 Nd7 6. Bg2 Ngf6 7. O-O Be7 8. Nc3 h6 9. d4 Ne4 10. Nd2 Nxd2
1968 Hoogovens – Round 1 – Jongsma, Alexander – 1/2-1/2 – Dunkelblum, Arthur – G6 1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 g6 5. Bg2 Bg7 6. Bb2 O-O 7. O-O Nbd7 8. Qc2 e6 9. Nc3 b6 10. d4 Bb7

A12a — Caro-Kann Defence (1924)

1.c4 c6 2.Nf3 d5 3.b3

Les coups candidats

3…Nf6 — 56.4% (3783 parties)

Ambassadeurs : Helmer, Janos (16x), Spiridonov, Nikola (8x), Feustel, Bernd (7x), Black, Stuart (7x), Thomassina (7x), Erdelyi, Tamas Dr (7x), Werner, Stephan (6x), Pomar Salamanca, Arturo (6x)

3…Bg4 — 19.3% (1292 parties) →

Ambassadeurs : Przewoznik, Jan (9x), McNab, Colin A (8x), Hennings, Artur (5x), Ivacic, Vladimir (5x), Boudre, Jean-Pierre (5x), Nyback, Tomi (4x), Turzo, Attila (4x), Khenkin, Igor (4x)

3…Bf5 — 18.7% (1255 parties)

Ambassadeurs : Matorin, Evgeny (8x), Feustel, Bernd (4x), Hasangatin, Ramil (4x), Grotnes, Nils Ragnar (3x), Hagesather, Pal Vegard (3x), Nikolaou, Georgios (3x), Obona, Jan (3x), Sarosy, Zoltan L (2x)

3…e6 — 2.0% (132 parties)

Ambassadeurs : Coulon, Dominic (2x), Ree, Hans (1x), Donner, Jan-Hein (1x), Votruba, Pavel (1x), Hornicek, Jiri (1x), Rogoff, Kenneth (1x), Cruz, Jorge (1x), Sperling, Christiane (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	3…Nf6	3…Bg4	3…Bf5	3…e6
<1800	331	58%	11%	22%	4%
1800-2200	2946	60%	13%	21%	3%
2200-2600	2484	49%	30%	17%	1%
2600+	6	33%	67%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	3…Nf6	3…Bg4	3…Bf5	3…e6
1950s	45	60%	11%	22%	—
1960s	73	62%	12%	23%	1%
1970s	132	56%	27%	14%	1%
1980s	282	57%	22%	16%	1%
1990s	1450	49%	25%	20%	2%
2000s	2355	57%	19%	18%	2%
2010s	1979	59%	16%	19%	3%
2020s	392	64%	10%	22%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
3…Nf6	59%	64%	▲ +5.1%
3…Bg4	16%	10%	▼ -5.6%
3…Bf5	19%	22%	▲ +3.2%
3…e6	3%	1%	▼ -1.8%

Joueurs célèbres

Champions du monde dans cette position

Gukesh D — 3 parties
Smyslov, Vladimir — 2 parties
Anand, Viswanathan — 1 partie
Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Carlsen, Magnus — 1 partie
Hou, Yifan — 1 partie

Parties historiques

3…Nf6 — 56.4% (3783 parties)

1950 — Koberl, Ferenc vs Füster, Géza — 1-0 — Budapest HUN
1950 — Werner, Stephan vs Juehe, Heinrich — 0-1 — Bielefeld
1950 — Werner, Stephan vs Babel, August — 1-0 — Bielefeld
1951 — Vasconcellos, Fernando O vs Dantas, Neimar de Oliveira — 0-1 — Mar del Plata ARG
1951 — Smyslov, Vladimir vs Keres, Paul Petrovich — 0-1 — Moskou ch-URS

3…Bg4 — 19.3% (1292 parties)

1954 — Milic, Borislav vs Aadhitha Karikalan — 1-0 — Belgrade SRB
1956 — Bak, Istvan vs Pachman, Ludek — 1/2-1/2 — Dresden GER
1956 — Ignatiev, Felix N vs Chistiakov, Alexander — 1-0 — Moscow RUS
1957 — Keres, Paul Petrovich vs Pachman, Ludek — 1-0 — Vienna AUT
1959 — Hofmann, Vilem vs Brach, Julius — 0-1 — Bratislava SVK

3…Bf5 — 18.7% (1255 parties)

1952 — Blaszczak, Czeslaw vs Szapiel, Henryk — 1/2-1/2 — Katowice POL
1953 — Pollitt, James D vs Hooper, David — 1/2-1/2 — Hastings ch-BCF
1953 — Sarosy, Zoltan L vs Kerns, Keith — 1-0 — Toronto CAN
1954 — Milic, Borislav vs Rabar, Braslav — 1/2-1/2 — Belgrade SRB
1955 — Vaitonis, Povilas vs Fuster, Geza — 1/2-1/2 — Ottawa CAN

3…e6 — 2.0% (132 parties)

1967 — Ree, Hans vs Donner, Jan-Hein — 0-1 — Beverwijk NED
1971 — Rogoff, Kenneth vs Cruz, Jorge — 1-0 — Athens GRE
1989 — Votruba, Pavel vs Hornicek, Jiri — 1-0 — Prague CZE
1989 — Sperling, Christiane vs Albert, Marion — 1-0 — RLPF-ch Girls U20
1991 — Tahkavuori, Tapani vs Katajajuuri, Juha — 1-0 — JSS VanTS-HOSK

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