Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● d4, ● d5
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● e6→d5, f7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0)	—
Cases faibles	—	—
Centre	—	● d5 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bf1	● Bf1 Non développé (mob. 5)
Bd2	● Bd2 Actif (mob. 5)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 1)
Paire de fous	● Oui	● Oui
Non développées	4 (● g1, ● f1, ● a1, ● h1)	5 (● b8, ● g8, ● 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	fermé
Ruptures	—	● …d4-d3, ● …f7-f6

C17f — French: Winawer, Bogoljubow, 5…cxd4

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 cxd4 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Nb5 (100 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bc5 (Fou actif (mobilité 6) — 36 % des parties) ; ...Bf8 (Fou actif (mobilité 5) — 21 % des parties) ; ...Be7 (Fou actif (mobilité 8) — 17 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1927 London – Round 2 – Bogoljubow, Efim – 1-0 – Thomas, George Alan – G12 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bc5 7. b4 a6 8. bxc5 axb5 9. Qg4 Kf8 10. Nf3 Nc6
1928 Vienna – Round 12 – Reti, Richard – 1-0 – Beutum, Sigmund – G70 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Be7 7. Qg4 Kf8 8. Nf3 Nc6 9. Bd3 h5 10. Qf4 Nh6
1929 Barcelona – Round 1 – Yates, Frederic D – 1-0 – Aguilera Abreu, Claudio Ernesto – G4 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bc5 7. Qg4 Kf8 8. b4 Be7 9. Nf3 Nc6 10. a3 Bd7
1929 Barcelona Barcelona ESP – Round 12 – Yates, Frederic D – 1-0 – Aguilera Aguilar, Jorge Luis – G33 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bc5 7. Qg4 Kf8 8. b4 Be7 9. Nf3 Nc6 10. a3 Bd7
1929 Budapest – Round 1 – Brinckmann, Alfred – 1-0 – Przepiorka, Dawid – G53 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bc5 7. Qg4 g6 8. Nf3 Nc6 9. Qf4 a6 10. Nbxd4 Nxd4
1929 Karlsbad – Round 1 – Becker, Albert – 1-0 – Marshall Viele, Fabrizio Aaron – G33 1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Be7 7. Qg4 g6 8. Nf3 Nc6 9. Bd3 a6 10. Nbxd4 Bf8
1929 Karlsbad – Round 1 – Becker, Albert – 1/2-1/2 – Thomas, George Alan – G145 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. O-O-O a6 9. Nd6+ Kf8 10. f4 Nge7
1931 Prague CSR – Round 2 – Van den Bosch, Johannes – 1-0 – Soler, Placido – G5 1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Be7 7. Qg4 Kf8 8. Nxd4 Nc6 9. Ngf3 Qb6 10. Nxc6 bxc6
1936 Muenchen ol – Round 5 – Arnlaugsson, Gudmundur – 0-1 – Vukovic, Vladimir – G11 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 f6 8. exf6 Nxf6 9. Nf3 O-O 10. Nbxd4 e5
1937 Kemeri – Round ? – Rellstab, Ludwig Sr – 1-0 – Bergs, Teodors – G176 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. f4 Nge7 9. Nd6+ Kf8 10. Nf3 Nf5
1937 Kemeri – Round 1 – Rellstab, Ludwig – 1-0 – Berg, Terje Jensen – G97 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. f4 Nge7 9. Nd6+ Kf8 10. Nf3 Nf5
1937 Rogaska Slatina – Round 1 – Najdorf, Miguel – 1-0 – Kalabar – G2 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. f4 Nge7 9. Nd6+ Kf8 10. Bd3 Qb6
1938 AVRO – Round 1 – Fine, Richard Alvaro Adrien – 1/2-1/2 – Capablanca, Jose – G18 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. Nf3 f6 9. Qf4 Nh6 10. Nd6+ Kf8
1938 It AVRO – Round 3 – Fine, Reuben – 1/2-1/2 – Capablanca, Jose – G8 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. Nf3 f6 9. Qf4 Nh6 10. Nd6+ Kf8
1940 Berlin – Round 3 – Rellstab, Ludwig Sr – 1-0 – Lehmann, Heinz – G12 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. Nf3 f6 9. exf6 Nxf6 10. Nbxd4 O-O
1945 Pan American – Round 1 – Kashdan, Isaac – 1-0 – Camarena Meza, Jackeline Edy – G49 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. Nf3 Nh6 9. Bd3 O-O 10. O-O f5
1951 Reggio Emilia – Round 3 – Norcia, Fabrizio – 1-0 – Wade, Robert G – G28 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. f4 Nh6 9. Nd6+ Kf8 10. Nf3 f5
1956 Mar del Plata – Round 12 – Bolbochan, J. – 1-0 – Redolfi, Javier – G67 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bf8 7. Nf3 a6 8. Nbxd4 Ne7 9. Bd3 Nec6 10. O-O Nxd4
1960 Skittles – Round ? – Blackstone, John – 0-1 – Bermudez Adams, William – G29 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bc5 7. Nf3 Nc6 8. Bg5 Qb6 9. a4 a6 10. a5 Nxa5
1960 URU Ch – Round ? – Estrada Degrandi, Walter – 1-0 – Afonso Martin, Lucas – G3 1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. f4 Nge7 9. Nd6+ Kf8 10. Bd3 Qa5
1962 Spartak Ch – Round 17 – Zhukhovitsky, Samuel – 1-0 – Govbinder, Mikhail Yudovich – G133 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bxd2+ 7. Qxd2 Nc6 8. f4 Nh6 9. Nf3 Nf5 10. O-O-O O-O
1966 Sunderland ch-BCF – Round 10 – Lees, David – 1-0 – Green Barry N – G92 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bc5 7. b4 Bf8 8. Nf3 Nc6 9. Rb1 Bd7 10. Bd3 a6
1968 Netanya-B – Round 1 – Basman, Michael J – 1-0 – Grabow, Pouelsten Holm – G2 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Be7 7. Qg4 g6 8. O-O-O Nc6 9. Nf3 Bd7 10. Nbxd4 Qc7

C17f — Winawer, Bogoljubow (1927)

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 cxd4

Les coups candidats

6.Nb5 — 99.7% (1079 parties)

Ambassadeurs : Blackstone, John (9x), Murphy, Jones (7x), Hammermayer, Franz (3x), ? (3x), Gonzalez Menendez, Ivan (3x), Alsayed, Mohammed (3x), Heredia Serrano, Carla (3x), Slingerland, Fred (3x)

6.Nce2 — 0.2% (2 parties)

Ambassadeurs : Deskin, Eric (1x), Brodie, Hugh (1x), Morgan, James E (1x), Cortes, Martin Gustavo (1x)

6.Bb5+ — 0.1% (1 parties)

Ambassadeurs : Randolph, Donald (1x), Best, Herbert A. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6.Nb5	6.Nce2	6.Bb5+
<1800	105	99%	—	1%
1800-2200	612	100%	—	—
2200-2600	210	100%	—	—
2600+	2	100%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6.Nb5	6.Nce2	6.Bb5+
1950s	13	100%	—	—
1960s	16	100%	—	—
1970s	19	95%	5%	—
1980s	40	100%	—	—
1990s	189	100%	—	—
2000s	353	100%	0%	—
2010s	379	100%	—	0%
2020s	73	100%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6.Nb5	100%	100%	+0.3%
6.Nce2	0%	0%	+0.0%
6.Bb5+	0%	0%	-0.3%

Parties historiques

6.Nb5 — 99.7% (1079 parties)

1951 — Crowl, Frank A vs Ihnatenko, P. — 0-1 — Melbourne AUS
1951 — Norcia, Fabrizio vs Meher Wade — 1-0 — Reggio Emilia ITA
1951 — Norcia, Federico vs Wade, Robert G — 1-0 — Reggio Emilia ITA
1951 — Martin, Raymond vs Pafnutieff, Vladimir — 1-0 — San Francisco, CA USA
1952 — Carvalho, Flavio vs Lima, Edmundo — 1-0 — Sao Paulo BRA

6.Nce2 — 0.2% (2 parties)

1970 — Deskin, Eric vs Brodie, Hugh — 0-1 — Montreal Quebec op
2003 — Morgan, James E vs Cortes, Martin Gustavo — 0-1 — Dos Hermanas ESP

6.Bb5+ — 0.1% (1 parties)

2010 — Randolph, Donald vs Best, Herbert A. — 0-1 — ICCF