Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● f7→g6, h7→g6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (2v1), ● e5 (2v1), ● g5 (2v0)	● f5 (2v0)
Cases faibles	—	—
Centre	● d5 (2v1), ● e4 (1v0), ● e5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 0)
Bg7		● Bg7 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● 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	—	● …c7-c5, ● …e7-e5

D90k — Gruenfeld: Three Knights Exchange, Romanishin Variation

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Qb3 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Bg5 (Fou actif (mobilité 8), Développer c1 — 26 % des parties) ; e4 (Occuper le centre — 12 % des parties) ; Bf4 (Fou actif (mobilité 9), Développer c1 — 9 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Nxc3 (Capture en c3 — 49 % des parties) ; ...Nb6 (46 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1925 Debrecen – Round 1 – Seitz, Jakob Adolf – 1-0 – Steiner, Laszlo – G1 1. c4 g6 2. Nf3 Bg7 3. d4 Nf6 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 Nb6 7. e3 Be6 8. Qc2 O-O 9. Be2 Nc6 10. O-O Rc8
1935 Moscow – Round 2 – Capablanca, Jose – 1/2-1/2 – Botvinnik, Mikhail – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 c5 8. e3 O-O 9. Be2 Nd7 10. O-O Qc7
1935 Moskou – Round 1 – Goglidze, Viktor – 0-1 – Botvinnik, Mikhail – G8 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 O-O 8. e3 c5 9. Be2 Qc7 10. O-O b6
1936 Olympiad (unofficial) – Round 8 – Kiprov Alexander Alexandro – 1/2-1/2 – Luckis, Marcos – G66 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 Nb6 7. Bf4 O-O 8. e3 Be6 9. Qc2 Na6 10. Bxa6 bxa6
1940 New York ch-USA – Round 6 – Woliston, Philip – 0-1 – Pinkus, Albert – G29 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 c5 8. e3 O-O 9. Be2 Qc7 10. O-O b6
1942 Chocen – Round ? – Kottnauer, Cenek – 0-1 – Richter, Emil – G8 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. d4 g6 5. Nf3 Bg7 6. Qb3 Nb6 7. Bf4 Be6 8. Qa3 O-O 9. e3 N8d7 10. Ng5 Bc4
1947 Moscow Ch – Round 1 – Kan, Ilya A – 0-1 – Bogatyrev, O – G12 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 O-O 8. Ba3 b6 9. e3 c5 10. Be2 Qc7
1959 GDR Ch Leipzig GER – Round 11 – Baumbach, Friedrich, Dr. – 1/2-1/2 – Hartmann, Claus – G50 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qb3 Nb6 7. e3 O-O 8. Be2 Be6 9. Qc2 Nc6 10. a3 a5
1961 New York ch-USA – Round 6 – Kramer, Gerald – 0-1 – Benko, Pal – G25 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 c5 8. e3 O-O 9. Be2 Nc6 10. O-O Na5
1965 Budapest HUN – Round 15 – Kovacs, Laszlo M – 0-1 – Padevsky, Nikola – G36 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 Nb6 7. Bf4 Be6 8. Qc2 O-O 9. Rd1 c6 10. Be5 Bxe5
1969 Skopje Skopje MKD – Round ? – Yoffie, Marc – 0-1 – Uhlmann, Wolfgang – G13 1. Nf3 g6 2. d4 Nf6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 Nb6 7. Bf4 O-O 8. e3 a5 9. a4 Nc6 10. Be2 Nb4
1975 URS Team Ch – Round 1 – Romanishin, Oleg M – 1-0 – Lukin, Andrei M – G190 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 c5 8. e3 O-O 9. Ba3 Nd7 10. Bb5 b6
Tbilisi 1976 – Round 1 – Romanishin, Oleg M – 0-1 – Korchnoi, Viktor – G6 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qb3 Nb6 7. e4 Bg4 8. d5 Bxf3 9. gxf3 c6 10. Be3 O-O
World Cup 1991 – Round 1 – Gulko, Boris – 1/2-1/2 – Ehlvest, Jaan – G9 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Qb3 Nxc3 7. bxc3 b6 8. Bg5 O-O 9. e3 c5 10. Be2 Ba6

D90k — Three Knights Exchange, Romanishin Variation (1925)

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Qb3

Les coups candidats

6…Nxc3 — 57.6% (480 parties)

Ambassadeurs : Essing, Arnold (7x), Romanishin, Oleg M (5x), Tisdall, Jonathan D (5x), Ker, Anthony F (4x), Weiss, Frank (4x), Salo, Heikki (4x), Tukmakov, Vladimir B (3x), Smejkal, Jan (3x)

6…Nb6 — 37.8% (315 parties)

Ambassadeurs : Jansa, Vlastimil (7x), Schuster, Karsten (5x), Tisdall, Jonathan D (4x), Salo, Heikki (4x), Schmidt, Ulrich (3x), Bemporad, Filippo (3x), Padevsky, Nikola (2x), Kuznecov, Alex (2x)

6…c6 — 4.0% (33 parties) →

Ambassadeurs : Zalys, Ignas (1x), Grombacher, Walter (1x), Silbermann, Frank (1x), Olf, Hans-Helmut (1x), Levieux, Pascal (1x), Gendre, Kostia (1x), Kuoppamaki, Petri (1x), Rinne, Karl-Heinz (1x)

6…e6 — 0.5% (4 parties)

Ambassadeurs : Essing, Arnold (1x), Knispel, Don Cervelheira Silva (1x), Parker, Jonathan F (1x), Gilmore, Simon N (1x), Nikolopoulos, Dimitrios (1x), Agouras, Ioannis (1x), Garcia Alvaro, Francisco Enrique (1x), Guillaume, Jude Mirvens (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Nxc3	6…Nb6	6…c6	6…e6
<1800	28	79%	18%	4%	—
1800-2200	316	55%	37%	7%	1%
2200-2600	343	59%	40%	1%	—
2600+	5	20%	80%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6…Nxc3	6…Nb6	6…c6	6…e6
1950s	3	33%	33%	33%	—
1960s	7	43%	57%	—	—
1970s	31	58%	42%	—	—
1980s	107	54%	41%	3%	2%
1990s	226	58%	36%	5%	—
2000s	212	55%	40%	5%	0%
2010s	207	58%	39%	2%	0%
2020s	40	78%	18%	5%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Nxc3	58%	78%	▲ +19.0%
6…Nb6	39%	18%	▼ -21.1%
6…c6	2%	5%	▲ +2.6%
6…e6	0%	0%	-0.5%

Parties historiques

6…Nxc3 — 57.6% (480 parties)

1951 — Borloy, Karoly vs Eugenio, Sarah De Oliveira — 0-1 — ?
1961 — Kramer, George vs Benko, Pal — 0-1 — New York ch-USA
1964 — Barrett, Gordon vs Thornton, W. — 1-0 — Downey, CA
1966 — Bologni, Marc Henri vs Porreca, Alessio — 1/2-1/2 — corr Italy
1972 — Szekely, Stefan vs Porreca, Giorgio — 0-1 — corr Eberhardt Wilhelm

6…Nb6 — 37.8% (315 parties)

1959 — Baumbach, Friedrich, Dr. vs Hartmann, Claus — 1/2-1/2 — GDR-ch Leipzig GER
1965 — Kovacs, Laszlo vs Padevsky, Nikola — 0-1 — ?
1966 — Padevsky, Nikola vs Gufeld, Eduard — 1/2-1/2 — ?
1967 — Hostalet Ferrer, Pedro Enrique vs Lewi, Jerzy — 1/2-1/2 — Groningen NED
1969 — Yoffie, Marc vs Uhlmann, Wolfgang — 0-1 — Skopje Skopje MKD

6…c6 — 4.0% (33 parties)

1958 — Zalys, Ignas vs Grombacher, Walter — 1/2-1/2 — ?
1988 — Kuoppamaki, Petri vs Rinne, Karl-Heinz — 1-0 — cr.
1989 — Silbermann, Frank vs Olf, Hans-Helmut — 1-0 — GER
1989 — Levieux, Pascal vs Gendre, Kostia — 1/2-1/2 — Urcuit
1991 — Jimenez Morales, Francisco vs Risueno, C. — 0-1 — Albacete ESP

6…e6 — 0.5% (4 parties)

1989 — Essing, Arnold vs Knispel, Don Cervelheira Silva — 1-0 — GER
1989 — Parker, Jonathan F vs Gilmore, Simon N — 1/2-1/2 — Derby
2001 — Nikolopoulos, Dimitrios vs Agouras, Ioannis — 0-1 — Athens GRE
2019 — Garcia Alvaro, Francisco Enrique vs Guillaume, Jude Mirvens — 1-0 — La Vega

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