E25b — Nimzo-Indian: Saemisch, 5…c5 6.f3 d5 7.cxd5 Nxd5

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), paire de fous, colonne b.
Faiblesses adverses : Bc8 enfermé, roi noir au centre, pawn c5 en prise.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, arriérés e2, c3, isolé a3, 5 pièces non développées (G1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● e4 — Centre d4+e4, libère Bf1
● Nf3 — Développer Ng1
● Be3 — Développer Bc1
● Rb — Tour sur colonne b

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_dame (3v2), case forte d5, avant-poste d5(C), colonne d.
Faiblesses adverses : arriérés e2, c3, isolé a3, Bc1 enfermé, Bf1 enfermé, roi blanc au centre, pawn c3 en prise.
Problèmes : roi au centre, Bc8 enfermé, 4 pièces non développées (B8, C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...Bd7 — PRIORITÉ: libérer le Bc8 (...Bd7, b6+Bb7, ...Bf5)
● ...Nbd7 — Développer Nb8
● ...c4 — Rupture
● ...e5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E25b — Saemisch

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5

Eval: [+0.31]

Les coups candidats

8.dxc5 — 85.2% (3367 parties) →

Ambassadeurs : Moskalenko, Viktor (35x), Ingersol, Harry (33x), Volkov, Sergey (29x), Daus, Peter (24x), Legemaat, Gert (24x), Sundqvist, Christer (20x), Herzog, Klaus (18x), Cebalo, Miso (16x)

8.Qd3 — 10.0% (396 parties) →

Ambassadeurs : Shirov, Alexei (21x), Liardet, Fabrice (6x), Zubac, Marius (6x), Penalver, Osmani (6x), Schreiber, Hanna (5x), Renet, Olivier (4x), Chabanon, Jean-Luc (4x), Khenkin, Igor (4x)

8.Qd2 — 3.3% (129 parties)

Ambassadeurs : Portisch, Lajos (6x), Pomes Marcet, Joan (3x), Pein, Malcolm (3x), Botvinnik, Mikhail (2x), Drimer, Dolfi (2x), Sherwin, James T (2x), Khodos, German (2x), Tal, Mikhail (2x)

8.Qc2 — 0.7% (26 parties)

Ambassadeurs : Molo, Rene Angel (4x), Vulfson, Vladimir (2x), Deze, Anton (2x), Bogdanovich, Grigory (2x), Miettinen, Reino (1x), Salovaara, Reino (1x), Goichberg, William (1x), Warner, Jack (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	8.dxc5	8.Qd3	8.Qd2	8.Qc2
<1800	53	79%	11%	2%	2%
1800-2200	979	87%	9%	2%	1%
2200-2600	2138	88%	9%	2%	0%
2600+	134	87%	10%	2%	—

Évolution par décennie (% des parties)

Décennie	N parties	8.dxc5	8.Qd3	8.Qd2	8.Qc2
1930s	2	50%	—	50%	—
1940s	3	67%	—	33%	—
1950s	47	40%	17%	36%	—
1960s	200	71%	16%	10%	2%
1970s	113	79%	11%	4%	6%
1980s	136	87%	11%	—	1%
1990s	484	64%	30%	5%	1%
2000s	1015	84%	12%	3%	0%
2010s	1439	93%	4%	2%	0%
2020s	514	95%	2%	2%	0%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
8.dxc5	93%	95%	▲ +2.1%
8.Qd3	4%	2%	▼ -2.5%
8.Qd2	2%	2%	+0.1%
8.Qc2	0%	0%	-0.0%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Aleksandr — 6 parties
Smyslov, Vladimir — 5 parties
Tal, Mikhail — 5 parties
Anand, Viswanathan — 4 parties
Carlsen, Magnus — 4 parties
Ding, Liren — 4 parties
Karpov, Anatoly — 3 parties
Kramnik, Vladimir — 3 parties
Botvinnik, Mikhail — 2 parties
Hou, Yifan — 2 parties
Ju, Wenjun — 2 parties
Euwe, Max — 1 partie
Gukesh D — 1 partie

Parties historiques

8.dxc5 — 85.2% (3367 parties)

1939 — Landau, Salo vs Van Scheltinga, Theo — 0-1 — Amsterdam NED
1941 — Bondarevsky, Igor vs Smyslov, Vasily — 1/2-1/2 — Leningrad RUS
1941 — Bondarevsky, Igor vs Smyslov, Vladimir — 1/2-1/2 — Leningrad- Moscow URS
1950 — Gligorić, Svetozar vs Alvarez Martin, Pedro — 1-0 — Mar del Plata ARG
1950 — Donner, Jan-Hein vs Hein-Pirc, Vasja — 0-1 — Amsterdam NED

8.Qd3 — 10.0% (396 parties)

1954 — Berliner, Hans vs Mengarini, Ariel — 1/2-1/2 — New York, NY USA
1956 — Berliner, Hans vs Anderson, Frank Ross — 0-1 — Montreal ch-CAN open
1956 — Berliner, Hans vs Anderson Anderson, Jose Guillermo — 0-1 — Montreal CAN
1958 — Kopilov, Nikolay Georgiyevich vs Maslov, Leonid P — 1-0 — Vilnius LTU
1959 — Clemens, Christian, Dr. vs Kuijpers, Frans — 1-0 — Muenchenstein/Basel

8.Qd2 — 3.3% (129 parties)

1936 — Boros, Sandor vs Steiner, Lajos — 1/2-1/2 — Budapest HUN
1949 — Beni, Alfred vs Pachman, Ludek — 0-1 — Arbon
1950 — Muhring, Willem Jan vs Euwe, Max — 0-1 — NLD-ch Amsterdam NED
1950 — Steiner, Heinrich Jun. vs Donner, H. — 1/2-1/2 — Venice ITA
1951 — Carlsson, Henrik 2002 vs Kaila, Osmo — 1/2-1/2 — Sweden

8.Qc2 — 0.7% (26 parties)

1961 — Wade, Robert G vs Van den Berg, Cees — 1/2-1/2 — Amsterdam NED
1967 — Miettinen, Reino vs Salovaara, Reino — 1-0 — ?
1967 — Goichberg, William vs Warner, Jack — 1-0 — Atlanta
1971 — Deze, Anton vs Komljenovic, Davorin — 0-1 — Portoroz SLO
1972 — Deze, Anton vs Timman, Jan H — 1/2-1/2 — Sombor

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	● a3	—
Arriérés	● e2, ● c3	—
Chaînes	● e2→f3, g2→f3, c3→d4	● f7→e6
Passés	—	—
Majorité	● centre 2v1	● aile_dame 3v2

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 6)
Bf1	● Bf1 Non développé (mob. 0)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	Non
Non développées	5 (g1, c1, f1, a1, h1)	4 (b8, c8, 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	semi-ouvert
Ruptures	● c3-c4, ● e2-e3, ● f3-f4	● …c5-c4, ● …e6-e5, ● …f7-f6, ● …f7-f5

Partie
1936 Budapest – Round 1 – Boros, Sandor – 1/2-1/2 – Steiner, Lajos – G7 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Qa5 9. c4 Qxd2+ 10. Bxd2 Nb6
1950 NLD Ch Amsterdam NED – Round 1 – Muhring, Willem Jan – 0-1 – Euwe, Max – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 Qa5 9. Bb2 Nb6 10. e3 Na4
1950 Venice – Round 7 – Steiner, Heinrich Jun. – 1/2-1/2 – Donner, H. – G62 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Qa5 9. Bb2 Nb6 10. e3 Na4
1956 Hoogovens – Round 8 – Van Scheltinga, Theo – 1-0 – Kramer, Hanspeter – G31 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Nc6 9. e4 Nf6 10. Bb5 O-O
1956 Zittau-A 6th – Round 5 – Baumbach, Friedrich, Dr. – 0-1 – Schlieder, Rolf – G21 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Qa5 9. Bb2 cxd4 10. cxd4 Nc6
1956 Zittau-A 6th – Round 5 – Starck, Bodo – 0-1 – Dorawa, Bernhard – G20 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Bd2 cxd4 9. cxd4 Qh4+ 10. g3 Qxd4
1957 HUN Ch Budapest HUN – Round ? – Portisch, Lajos – 1-0 – Bilek, Istvan – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 f5 9. e3 cxd4 10. cxd4 O-O
1958 Munich olm prel – Round 1 – Botvinnik, Mikhail – 1/2-1/2 – Donner, Jan-Hein – G2 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Nc6 9. e4 Nb6 10. Bb5 Bd7
1959 HUN Ch – Round 1 – Portisch, Lajos – 1-0 – Pogats, Jozsef Jr. – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 Qa5 9. e4 Nb6 10. Rb1 Bd7
1959 New York ch-USA – Round 3 – Sherwin, James T – 1/2-1/2 – Denker, Arnold S – G13 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 Qa5 9. e4 Qxc3 10. Bb2 Qxd2+
1959 URS-JUG – Round 3 – Taimanov, Mark E – 1/2-1/2 – Milic, Borislav – G14 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 Qa5 9. e4 Qxc3 10. Bb2 Qxd2+
1960 Leipzig olm fin-A – Round 7 – Barden, Leonard – 0-1 – Szabo, Ladislav – G120 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Qa5 9. e4 Nb6 10. Rb1 Bd7
1960 Leipzig olm fin-A – Round 9 – Barden, Leonard – 1/2-1/2 – Kolarov, Atanas S. – G157 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 cxd4 9. cxd4 f5 10. e3 O-O
1960 New York ch-USA – Round 4 – Weinstein, Raymond – 1/2-1/2 – Sherwin, James T – G16 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Qa5 9. e4 Qxc3 10. Bb2 Qxd2+
1961 Bled – Round 13 – Portisch, Lajos – 1/2-1/2 – Germek, Milan – G119 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 cxd4 9. cxd4 f5 10. e3 O-O
1961 FRG Ch Bad Prymont – Round 13 – Weise, Dieter – 0-1 – Clemens, Christian, Dr. – G27 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Nc6 9. e4 Nb6 10. dxc5 Nd7
1961 Oberhausen etc – Round 10 – Polugaevsky, Lev – 1-0 – Niephaus, Walter – G243 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Nc6 9. e4 Nb6 10. dxc5 Qxd2+
1961 WchT U26 08th – Round 6.4 – Khodos, German – 1-0 – Kuijpers, Frans – G60 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Qa5 9. e4 Qxc3 10. Qxc3 Nxc3
1962 Stockholm Interzonal – Round 19 – Aaron, Manuel – 0-1 – Teschner, Rudolf – G167 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Bd2 cxd4 9. cxd4 Qh4+ 10. g3 Qxd4
1963 Odense ch-DEN – Round 9 – Soby, Frode – 1-0 – Larsen, Bent Ravn – G6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 O-O 9. e3 Nc6 10. Bd3 e5
1965 WchT U26 12. fin-A – Round 2 – Khodos, German – 1-0 – Polgar, Istvan – G8 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 f5 9. e3 Nc6 10. c4 Nf6
1966 Corr – Round ? – Preinfalk, Anton – 1/2-1/2 – Konstantinopolsky, Alexander – G3 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 Nc6 9. e4 Nb6 10. Bb5 O-O
1966 Moscow RUS – Round 1 – Botvinnik, Mikhail – 1/2-1/2 – Smyslov, Vladimir – G2 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd2 O-O 9. e4 Nb6 10. a4 Bd7
1967 CSR Ch – Round 12 – Machacek, Petr – 1-0 – Novak, Ervin – G79 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 O-O 9. e4 Nf6 10. Bb2 Qa5
XXVII SuperGM 2010 – Round 1 – Aronian, Levon – 1/2-1/2 – Grischuk, Alexander – G1 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd2 Qa5 9. e4 Qxc3 10. Qxc3 Nxc3

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