Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés ● a3
Arriérés
Chaînes ● e2→f3, g2→f3, c3→d4 ● f7→e6
Passés
Majorité ● aile dame 3v2
Cases
♔ Blancs ♚ Noirs
Cases fortes ● e4 (2v0) ● d5 (2v0)
Cases faibles
Centre ● d4 (2v1), ● e4 (2v0), ● 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 mobile
Ruptures ● …e6-e5

E25c — Nimzo-Indian: Saemisch, 5…c5 6.f3 d5 7.cxd5 Nxd5 8.Qd3

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 8.Qd3 *   ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bN
bB
bQ
bK
bR
bP
bP
bP
bP
bPPion sous pression
bP
bPpawn en prise !
bN
wPPion central
Case forte (2v0)
wPPion isolé — cible
wP
wQ
wP
wP
wP
wP
wR
wBFou actif — mobilité 6
wK
wB
wN
wR
abcdefgh
Plans. e4 (Occuper le centre — 66 % des parties) ; dxc5 (Capture en c5, Frapper le centre adverse — 2 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wN
wB
wK
wB
wR
wP
wP
wP
wP
wQ
wP
wPPion isolé — cible
wP
bNAvant-poste C (occupé)
bPpawn en prise !
bP
bPPion sous pression
bP
bP
bP
bP
bR
bK
bQ
bB
bN
bR
hgfedcba
Plans. ...b6 (Préparer le fianchetto — 38 % des parties) ; ...cxd4 (Capture en d4, Occuper le centre — 31 % des parties) ; ...O-O (Mettre le roi en sécurité, connecter les tours — 20 % des parties) ; ...Nc6 (Développer b8 — 8 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
? 2000 – Round ? – Shirov, Alexei – 1-0 – canchess – G36
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd3 b6 9. e4 Ba6 10. Qd2 Bxf1
1954 New York ch-USA – Round 12 – Berliner, Hans – 1/2-1/2 – Mengarini, Ariel – G50
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 b6 10. e4 Ba6
1956 Montreal – Round 1 – Berliner, Hans – 0-1 – Anderson Anderson, Jose Guillermo – G9
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 b6 10. e4 Ba6
1959 BUL Ch Sofia BUL – Round 11 – Hadjipetrov, Alexander – 0-1 – Kolarov, Atanas S. – G32
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 f5 10. e4 Nf6
1959 New York ch-USA – Round 11 – Weinstein, Raymond – 1-0 – Denker, Arnold S – G60
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 O-O 9. e4 Ne7 10. Be3 cxd4
1960 AUS Ch – Round 9.3 – Purdy, Cecil J S – 1-0 – Sarapu, Ortvin – G42
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd3 Nc6 9. e4 Nde7 10. dxc5 Qa5
1960 Balatonfured it – Round 9 – Sliwa, Bogdan – 0-1 – Kluger, Gyula – G10
1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 b6 10. e4 Ba6
1960 CSR Ch – Round 10 – Marsalek, Josef – 1-0 – Kozma, Julius – G82
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 Nc6 10. e4 Nb6
1961 Katowice ch18-POL – Round 13 – Sliwa, Bogdan – 1-0 – Kostro, Jerzy – G79
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 Nc6 9. e4 Nb6 10. dxc5 Nd7
1961 Oberhausen etc – Round 3 – Weise, Daniel, Dr. – 0-1 – Lengyel, Laszlo – G82
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 Nc6 10. e4 Nb6
1961 United States Open Championship – Round 2 – Osbun, Erik – 1-0 – Kane, George Francis – G2
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 Qc7 10. Bd2 Bd7
1961 Warsaw – Round 1 – Sliwa, Bogdan – 0-1 – Lengyel, Agnes – G25
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 Nc6 10. e4 Nb6
1961 Wch U20 prel-A – Round 5 – Rubinetti, Jorge – 1/2-1/2 – Nagy, Bela – G6
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 b6 9. e4 Ba6 10. Qd2 Bxf1
1962 Varna ol (Men) fin-B – Round 3 – Wade, Robert G – 1-0 – Luginbuhl – G5
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 Nc6 9. e4 Nb6 10. dxc5 Nd7
1963 Buenos Aires ch-ARG – Round 10 – Wexler, Bernardo – 1/2-1/2 – Luckis, Marcos – G54
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 b6 10. e4 Ba6
1964 Clare Benedict Cup 11th – Round 5 – Keller, Dieter – 1/2-1/2 – Unzicker, Wolfgang – G25
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 b6 9. e4 Ba6 10. Qc2 Bxf1
1966 Kislovodsk – Round 8 – Taimanov, Mark E – 1-0 – Hamann, Svend – G44
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 c5 5. a3 Bxc3+ 6. bxc3 d5 7. cxd5 Nxd5 8. Qd3 O-O 9. e4 Nb6 10. Be3 cxd4
1967 Asztalos Memorial 10th – Round 4 – Szabo, Laszlo – 1/2-1/2 – Haag, Ervin – G17
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 Qa5 9. Bd2 Qa4 10. e4 Ne7
1968 Clare Benedict Cup 15th – Round 3 – Keller, Dieter – 1/2-1/2 – Unzicker, Wolfgang – G14
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 b6 10. e4 Ba6
1968 Lublin PKWN 4th – Round 7 – Knezevic, Milorad – 1-0 – Jamroz, Zbigniew – G21
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. Qd3 Nc6 9. e4 Nde7 10. Be3 O-O
Euwe Memorial 1991 – Round 5 – Gurevich, Mikhail – 1/2-1/2 – Timman, Jan H – G20
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd3 O-O 9. e4 Ne7 10. Be3 Qa5
Moskou ch-URS 1988 – Round 1 – Malaniuk, Vladimir P – 0-1 – Sokolov, Andrei – G15
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. Qd3 cxd4 9. cxd4 Nc6 10. e4 Nb6

E25c — Saemisch (1954)
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.f3 d5 7.cxd5 Nxd5 8.Qd3
Les coups candidats
8…b6 — 38.3% (153 parties)
Ambassadeurs : Shirov, Alexei (8x), Zubac, Marius (5x), Novoa, Ruben Fernando (4x), Kilpi, Teemu (3x), Korchnoi, Viktor (3x), Miton, Kamil (3x), Aaltio, Erkki (3x), Wells, Peter K (2x)
8…cxd4 — 31.3% (125 parties)
Ambassadeurs : Schreiber, Hans (4x), Liardet, Fabrice (4x), Gipslis, Aivars (3x), Shirov, Alexei (3x), Lawrence, Jeffrey A (2x), Herren, Walter (2x), Richardson, Keith B (2x), Sliwa, Bogdan (2x)
8…O-O — 20.3% (81 parties)
Ambassadeurs : Shirov, Alexei (9x), Timman, Jan H (4x), Yakovich, Yuri (3x), Penalver, Osmani (3x), Churkin, Mikhail Mikhailovich (3x), Ivanchuk, Vasyl (2x), Chabanon, Jean-Luc (2x), Georgiev, Kiril (2x)
8…Nc6 — 8.3% (33 parties)
Ambassadeurs : Etchegaray, Patrice (2x), Jerez Perez, Alfonso (2x), Clemens, Christian, Dr. (1x), Kuijpers, Frans (1x), Knezevic, Milorad (1x), Jamroz, Zbigniew (1x), Purdy, Cecil J S (1x), Sarapu, Ortvin (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…b6 8…cxd4 8…O-O 8…Nc6
<1800 11 55% 18% 27%
1800-2200 111 50% 25% 14% 8%
2200-2600 192 36% 29% 26% 8%
2600+ 10 50% 50%
Évolution par décennie (% des parties)
Décennie N parties 8…b6 8…cxd4 8…O-O 8…Nc6
1950s 7 43% 14% 43%
1960s 33 12% 61% 9% 15%
1970s 12 8% 75% 17%
1980s 16 75% 19%
1990s 144 40% 29% 25% 6%
2000s 117 57% 21% 12% 8%
2010s 59 34% 24% 29% 12%
2020s 11 36% 9% 45%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…b6 34% 36% ▲ +2.5%
8…cxd4 24% 9% ▼ -14.6%
8…O-O 29% 45% ▲ +16.6%
8…Nc6 12% 0% ▼ -11.9%
Joueurs célèbres
Champions du monde dans cette position
Karpov, Anatoly — 2 parties
Karpov, Aleksandr — 1 partie
Parties historiques
8…b6 — 38.3% (153 parties)
1961 — Rubinetti, Jorge vs Nagy, Bela — 1/2-1/2 — The Hague NED
1961 — Luik, Helmuth vs Arulaid, Alexander — 0-1 — Estonia
1962 — Lawrence, Jeffrey A vs Bernhardt, Rolf — 1/2-1/2 — Zurich SUI
1964 — Keller, Dieter vs Unzicker, Ferdinand, Dr. — 1/2-1/2 — Lenzerheide
1975 — Auerswald, Uwe vs Pietruske, Siegfried — 0-1 — ?
8…cxd4 — 31.3% (125 parties)
1954 — Berliner, Hans vs Mengarini, Ariel — 1/2-1/2 — New York ch-USA
1956 — Berliner, Hans vs Anderson Harris — 0-1 — Montreal ch-CAN open
1959 — Hadjipetrov, Alexander vs Kolarov, Atanas S. — 0-1 — BUL-ch Sofia BUL
1960 — Bialas, Wolfram vs Oehlenschlaeger, Eckhard — 1-0 — Berlin West
1960 — Afizov, Marsel vs Kozma, Julius — 1-0 — Ostrava CZE
8…O-O — 20.3% (81 parties)
1959 — Weinstein, Raymond vs Decker, Arnold Sheldon — 1-0 — New York ch-USA
1961 — Barden, Leonard vs EDWARDS RYO — 0-1 — London ENG
1961 — OBrien, Erik Michael vs Loftsson, Julius H — 1/2-1/2 — Hamilton Air Force Base
1966 — Taimanov, Mark vs Hamann, Svend — 1-0 — Kislovodsk
1974 — Partos, Charles vs Bakheet Farag — 0-1 — Bucharest ROU
8…Nc6 — 8.3% (33 parties)
1958 — Kopilov, Nikolay Georgiyevich vs Maltsev, Leonid — 1-0 — Vilnius LTU
1959 — Clemens, Christian, Dr. vs Kuijpers, Frans — 1-0 — Muenchenstein/Basel
1959 — Sherwin, James T vs Wang, Arthur D — 1-0 — Omaha
1960 — Purdy, Cecil J S vs Sarapu, Ortvin — 1-0 — Adelaide AUS
1961 — Sliwa, Bogdan vs Kostro, Jerzy — 1-0 — Katowice ch18-POL

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