Base Masters : Blancs 36.7%, Nulles 41.4%, Noirs 21.9%.

Coups candidats

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Analyse coup par coup — 8 demi-coups commentés

1.e4 Avancée centrale — contrôle d5, f5. Prépare d4, f4, Bc4, Bd3.
1…c5 Avancée centrale — contrôle b4, d4. Prépare Nc6, d5.
2.Nf3 Contrôle c4, d4, d5, e5.
2…Nc6 Contrôle d4, e5.
3.d4 Avancée centrale — contrôle c5, e5. Prépare c4, e4, Nc3.
3…cxd4 Capture en d4 — résout la tension centrale.
4.Nxd4 Capture pion en d4.
4…d5 Avancée centrale — contrôle c4, e4. Prépare c5, e5.

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● f5 (2v1)	—
Cases faibles	—	—
Centre	—	● e4 (1v0), ● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
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)	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	tension
Ruptures	● c2-c4	● …f7-f5

B32 — Sicilian Defense: Nimzo-American Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 ○ Trait aux Blancs

Ouverture — Tension centrale

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bb5 (Clouer c6, Fou actif (mobilité 7), Développer f1 — 48 % des parties) ; exd5 (Capture en d5, Occuper le centre — 25 % des parties) ; Nxc6 (Menace d8 — 22 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...dxe4 (Capture en e4, Occuper le centre — 50 % des parties) ; ...Bd7 (Fou actif (mobilité 5), Développer c8 — 1 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1923 Karlsbad – Round 13 – Rubinstein, Akiba – 0-1 – Nimzowitsch, Aron – G126 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. exd5 Qxd5 6. Be3 e6 7. Nc3 Bb4 8. Nb5 Qe5 9. a3 Bxc3+ 10. bxc3 a6
1926 Dresden – Round 1 – Von Holzhausen, Walther – 0-1 – Nimzowitsch, Aron – G3 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Nd4+ axb5 9. Nxb5 Bg4+ 10. Ke1 Rd8
1926 Trencianske Teplice SVK – Round 1 – Schulz, Jan – 1/2-1/2 – Kostic, Boris – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Nxc6 bxc6 6. exd5 Qxd5 7. Nc3 Qxd1+ 8. Nxd1 Nf6 9. Ne3 e6 10. Be2 c5
1936 Podebrady – Round ? – Foltys, Jan – 1-0 – Skalicka, Karel – G110 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Nxc6 bxc6 6. exd5 Qxd5 7. Nc3 Qxd1+ 8. Nxd1 Nf6 9. Be2 Bf5 10. Bf3 Be4
1937 Bad Elster – Round 8 – Acebey Michel, Veroska – 1-0 – Ullrich, Heinz – G25 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nc3 Bxc6 10. Bxc6+ bxc6
1939 Vienna – Round 1 – Becker, Albert – 1-0 – Weil, H. – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nc3 Bxc6 10. Bxc6+ bxc6
1946 New York ch-USA – Round 1 – Santasiere, Anthony – 1-0 – Kowalski, Stefan – G24 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Nd4+ axb5 9. Nxb5 Bg4+ 10. Ke1 Rd8
1946 Pittsburgh Open – Round 1 – Bisguier, Arthur B – 1-0 – McCord, Andre M – G50 1. e4 c5 2. d4 cxd4 3. Nf3 Nc6 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 Bg4+ 8. f3 Bd7 9. Nd4 Rd8 10. Ke2 Bxb5+
1947 Moscow – Round 11 – Magergut, Alexander Zinovievich – 0-1 – Fridstein, German – G34 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nc3 bxc6 10. Nxe4 O-O-O
1947 Sofia Balkaniade – Round 2.3 – Florian, Tibor – 1/2-1/2 – Radulescu, Mircea – G13 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Nxc6 bxc6 6. exd5 Qxd5 7. Qxd5 cxd5 8. Bb5+ Bd7 9. Nc3 e6 10. Bxd7+ Kxd7
1947 Sofia Balkaniade – Round 3.2 – Neikirkh, Oleg – 1/2-1/2 – Radulescu, Mircea – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Nxc6 bxc6 6. exd5 Qxd5 7. Nd2 Nf6 8. Be2 e6 9. O-O Be7 10. Bf3 Qd7
1948 South Fallsburg ch-USA – Round 1 – Adams, Weaver – 0-1 – Sandrin Chodorge, Antoine – G58 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Nd4+ axb5 9. Bd2 f5 10. Nxb5 Kf7
1948 South Fallsburg ch-USA – Round 1 – Kashdan, Isaac – 1-0 – Sandrin Chodorge, Antoine – G59 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nc3 Bxc6 10. Bxc6+ bxc6
1948 South Fallsburg ch-USA – Round 1 – Shipman, Walter – 1/2-1/2 – Sandrin Chodorge, Antoine – G57 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Nxc6 bxc6 6. exd5 Qxd5 7. Nc3 Qxd1+ 8. Nxd1 Nf6 9. Bc4 e5 10. Ne3 Bd6
1949 URS Ch, semi final – Round 1 – Solmanis, Zigfrids – 0-1 – Grechkin, Dmitry M – G20 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nxe7 Bxa4 10. Nc3 Rd8+
1951 Chigorin Memorial – Round ? – Korchnoi, Viktor – 1-0 – Reshko, Aron – G17 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. exd5 Qxd5 6. Be3 Nxd4 7. Nc3 Qe5 8. Qxd4 Qxd4 9. Bxd4 Bd7 10. Nb5 Rc8
1956 New York – Round ? – Fischer, Robert J – 1/2-1/2 – Vine, K – G8 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nc3 Bxc6 10. Bxc6+ bxc6
1958 GBR Ch 45th – Round 1.13 – Dickson, George – 0-1 – Wood, Baruch – G2 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Nc3 axb5 9. Nxb5 Bg4+ 10. Ke1 Rc8
1963 YUG Ch 19th – Round 20 – Parma, Bruno – 1-0 – Gojak, Ilija – G70 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. exd5 Qxd5 6. Be3 Nxd4 7. Nc3 Qa5 8. Qxd4 e5 9. Qd5 Qxd5 10. Nxd5 Bd6
1964 WchT U26 11. fin-A – Round 3.2 – Schmidt, Wlodzimierz – 1/2-1/2 – Steiner, Ulrich A – G46 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nc3 bxc6 10. Nxe4 e5
1965 Titograd – Round 3 – Parma, Bruno – 1/2-1/2 – Knezevic, Milorad – G23 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. exd5 Qxd5 6. Be3 e6 7. Nc3 Bb4 8. Nb5 Qe5 9. a3 Be7 10. Be2 a6
1967 Krems – Round 1 – Unzicker, Wolfgang – 1-0 – Joyeux Steiner, Gael – G6 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5 5. Bb5 dxe4 6. Nxc6 Qxd1+ 7. Kxd1 a6 8. Ba4 Bd7 9. Nc3 bxc6 10. Nxe4 e5

B32h — Nimzo-American Variation (1923)

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d5

Les coups candidats

5.Bb5 — 47.9% (429 parties)

Ambassadeurs : Szabolcsi, Janos (12x), Popchev, Milko (7x), Pechac, Jergus (6x), Kasperek, Ryszard (6x), Brochet, Philippe (5x), Smola, Michal (5x), Lis, Marek (5x), Sygulski, Pawel (5x)

5.exd5 — 25.4% (228 parties)

Ambassadeurs : Szabolcsi, Janos (7x), Darias Mateos, Alejandro (4x), Gutierrez Mingueza, Ruben (3x), Harff, Marcel (3x), Poulsen, Iver (3x), Parma, Bruno (2x), Ricardi, Pablo (2x), Garcia Palermo, Carlos Horacio (2x)

5.Nxc6 — 21.7% (194 parties)

Ambassadeurs : Szabolcsi, Janos (3x), Wiech, Grzegorz (2x), Shulman, Yury (2x), Korzubov, Peter (2x), Cadigoy, Alfonso Jr? D? (2x), Coenen, Michael (2x), Suermann, Uwe (2x), Hajnal, Zoltan (2x)

5.Nc3 — 4.4% (39 parties)

Ambassadeurs : Musil, Jiri (2x), Pitre, Hanniegn (1x), Poulson, Sief (1x), Sasseville, Jean (1x), Keep, Richard (1x), Johansson, Jan (1x), Skoog Edvard (1x), Lecroq, Michel (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.Bb5	5.exd5	5.Nxc6	5.Nc3
<1800	69	42%	25%	20%	10%
1800-2200	437	49%	25%	22%	3%
2200-2600	270	50%	26%	21%	2%
2600+	2	—	50%	50%	—

Évolution par décennie (% des parties)

Décennie	N parties	5.Bb5	5.exd5	5.Nxc6	5.Nc3
1950s	6	67%	17%	17%	—
1960s	11	55%	36%	9%	—
1970s	12	—	33%	42%	25%
1980s	17	71%	12%	6%	12%
1990s	110	52%	17%	25%	5%
2000s	346	50%	24%	22%	4%
2010s	349	47%	28%	20%	4%
2020s	45	31%	38%	27%	4%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.Bb5	47%	31%	▼ -15.9%
5.exd5	28%	38%	▲ +9.7%
5.Nxc6	20%	27%	▲ +6.3%
5.Nc3	4%	4%	+0.4%

Parties historiques

5.Bb5 — 47.9% (429 parties)

1953 — Burstein, Sylvain vs Soultanbeieff, Victor — 1-0 — Hastings ENG
1956 — Fischer, Robert J vs Vine, Keith J — 1/2-1/2 — New York, NY USA
1957 — Palmiotto, Fiorentino vs D'Augusta, Arrigo — 0-1 — Reggio Emilia ITA
1958 — Dickson, George vs Wood, Baruch — 0-1 — Leamington
1960 — Platz, Joseph vs Newberry, William — 1-0 — New Haven

5.exd5 — 25.4% (228 parties)

1951 — Korchnoi, Viktor vs Reshko, Aaron — 1-0 — Leningrad RUS
1962 — Bogatyriew vs Kramar, Adam — 0-1 — corr ch5-SU
1963 — Benko, Pal vs Sandrin, Al — 1-0 — Chicago US op
1963 — Parma, Bruno vs Gojak, Ilija — 1-0 — Zenica BIH
1965 — Parma, Bruno vs Knezevic, Milorad — 1/2-1/2 — ?

5.Nxc6 — 21.7% (194 parties)

1951 — Kopylov, Nazar vs Keres, Paul — 1-0 — Moskou ch-URS
1964 — Fischer, Robert J vs Costaras, Bill — 1-0 — Fischer tour simul
1972 — Szeles, Karoly vs Szabolcsi, Janos — 0-1 — HUN
1974 — Hamilton, Douglas G vs Fell, Lloyd S — 0-1 — Cooma
1977 — Wedberg, Tom vs Ekstroem, Roland — 1-0 — Sweden

5.Nc3 — 4.4% (39 parties)

1973 — Lecroq, Michel vs Szabolcsi, Janos — 0-1 — HUN
1977 — Kung, Fan- Hsuan vs Joel Johnson — 1-0 — Columbus, OH USA
1979 — Sasseville, Jean vs Keep, Richard — 0-1 — Trois-Rivieres CAN
1987 — Pitre, Hanniegn vs Poulson, Sief — 0-1 — West Vancouver CAN
1989 — Johansson, Jan vs Skoog Edvard — 1-0 — ?

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