Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	● d4, ● d7
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v1)	● b4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (1v0)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bb5	● Bb5 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	4 (● b1, ● c1, ● 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	mobile
Ruptures	● c2-c3	● …d4-d3, ● …d7-d5, ● …f7-f5

C44t — Scotch: Relfsson Gambit

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bb5 * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. O-O (Mettre le roi en sécurité, connecter les tours — 38 % des parties) ; Ba4 (Clouer c6 — 21 % des parties) ; c3 (Renforcer le centre — 14 % des parties) ; Nbd2 (Développer b1 — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...Bc5 (Fou actif (mobilité 6), Développer f8 — 48 % des parties) ; ...a6 (Préparer expansion aile dame — 28 % des parties) ; ...Bb4+ (Fou actif (mobilité 9), Développer f8 — 12 % des parties) ; ...Nf6 (Développer g8 — 5 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1904 BCF Ch 1st – Round 11 – Blackburne, Joseph – 1-0 – Adeyeye Joseph Palmer – G39 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 Bc5 5. c3 dxc3 6. Nxc3 d6 7. O-O Bd7 8. Re1 Ne5 9. Nxe5 dxe5 10. Qd5 Bxf2+
1927 London Olympiad 1st – Round 11.64 – Nyholm, Gustav – 1-0 – Kalabar, Sadi – G121 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 Bb4+ 5. Nbd2 Nge7 6. O-O Bxd2 7. Qxd2 O-O 8. b3 d5 9. e5 a6 10. Bxc6 Nxc6
1961 Baku ch-URS – Round 13 – Kholmov, Ratmir D – 0-1 – Shianovsky, Vladislav I – G125 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 Bb4+ 5. c3 dxc3 6. O-O Nge7 7. bxc3 Bc5 8. Ng5 d6 9. Qh5 Ng6 10. e5 Nxe5
1962 Varna ol (Men) qual-A – Round 4 – Stoltz, Gabriel – 1-0 – Kokkoris, Haralambos – G4 1. e4 e5 2. d4 exd4 3. Nf3 Nc6 4. Bb5 Bc5 5. O-O a6 6. Ba4 Nge7 7. c3 dxc3 8. Ng5 d6 9. Qh5 Ng6 10. Kh1 Be6
1964 Tel Aviv olm – Round 1 – Letelier Martner, Rene – 0-1 – Myagmarsuren, Lkhamsuren – G108 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 a6 5. Ba4 Bc5 6. O-O Nge7 7. a3 O-O 8. c3 dxc3 9. Nxc3 d6 10. h3 Be6
1965 Buenos Aires ch-ARG – Round 17 – Perez Cascella, Julio – 0-1 – Rossetto, Hector – G103 1. e4 Nc6 2. d4 e5 3. Nf3 exd4 4. Bb5 Bb4+ 5. c3 dxc3 6. O-O Nge7 7. bxc3 Bc5 8. Ng5 d6 9. Qh5 Ng6 10. Kh1 Qe7
1967 Sweden (ch) – Round 12 – Skold, Kristian – 1/2-1/2 – Ekenberg, Bengt – G63 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 a6 5. Ba4 b5 6. Bb3 Na5 7. Qxd4 Ne7 8. Nc3 d6 9. Qe3 c5 10. Bd5 Nxd5
1968 Cardenas – Round 1 – Letelier Martner, Rene – 1/2-1/2 – Boudy Bueno, Julio Leonardo – G21 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5 a6 5. Ba4 Bc5 6. O-O b5 7. Bb3 Na5 8. c3 Nxb3 9. Qxb3 Ne7 10. cxd4 Bb6
1968 Cardenas/Matanzas/Santa Clara – Round 13 – Boudy Bueno, Julio Leonardo – 1/2-1/2 – Rossetto, Hector – G66 1. e4 Nc6 2. d4 e5 3. Nf3 exd4 4. Bb5 g6 5. Nxd4 Bg7 6. Nxc6 bxc6 7. Bc4 Qh4 8. O-O Nf6 9. Nd2 O-O 10. f4 d5

C44t — Scotch Game: Relfsson Gambit (1904)

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bb5

Les coups candidats

4…Bc5 — 48.4% (170 parties)

Ambassadeurs : Emmons, Austin (16x), Liutaia, Lidiia (16x), Schmidt, Karl-Heinz (16x), Stewart, Douglas (16x), Velthuis, Peter (16x), Deakin, Christopher (15x), Thommen, John (12x), Panugaling, Ronilo (12x)

4…a6 — 28.2% (99 parties)

Ambassadeurs : Letelier Martner, Rene (7x), Skold, Kristian (6x), Schiller, Eric (3x), Abdalla Sultan Alowais (3x), Malmdin, Nils-Ake (3x), Obukhov, Gennady (3x), Kindler, Juergen, Prof. Dr. (2x), Johnson, Bjorn (2x)

4…Bb4+ — 11.7% (41 parties)

Ambassadeurs : Malmdin, Nils-Ake (4x), Schalkwijk, Peter H. (2x), Muzychuk, Anna (2x), Schalkwijk, Peter H (2x), Cherednichenko, Viktor (2x), Obukhov, Gennady (2x), Perez Cascella, Julio (1x), Rossetto, Hector (1x)

4…Nf6 — 5.1% (18 parties) →

Ambassadeurs : Emodi, Gyula (2x), Malmdin, Nils-Ake (2x), Ozsvath, Andras (1x), Honfi, Karoly (1x), Cafferty, Bernard (1x), Will, JM. (1x), Kiffmeyer, Constanz (1x), Jons, Aden (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…Bc5	4…a6	4…Bb4+	4…Nf6
<1800	47	79%	9%	11%	—
1800-2200	135	49%	26%	13%	4%
2200-2600	55	25%	51%	15%	4%

Évolution par décennie (% des parties)

Décennie	N parties	4…Bc5	4…a6	4…Bb4+	4…Nf6
1950s	2	—	—	—	100%
1960s	24	8%	67%	12%	4%
1970s	14	57%	21%	7%	14%
1980s	10	40%	20%	20%	10%
1990s	41	17%	46%	20%	7%
2000s	76	37%	30%	21%	7%
2010s	59	32%	39%	8%	3%
2020s	125	82%	10%	5%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…Bc5	32%	82%	▲ +49.4%
4…a6	39%	10%	▼ -28.6%
4…Bb4+	8%	5%	▼ -3.7%
4…Nf6	3%	2%	▼ -1.8%

Parties historiques

4…Bc5 — 48.4% (170 parties)

1962 — Stolz, Bernhard vs Kokkoris, Evangelos — 1-0 — Varna BUL
1966 — Westerinen, Heikki M.J. vs Zuidema, Coen — 1/2-1/2 — Havana CUB
1970 — Skold, Kristian vs Ek, Hans — 0-1 — Nassjo
1974 — Rasmussen, Paetur vs Scriba, P. — 1/2-1/2 — cr.
1975 — Cleguer, Henri vs Champion, Francois — 1-0 — ?

4…a6 — 28.2% (99 parties)

1961 — Kholmov, Ratmir D vs Gurgenidze, Bukhuti — 1-0 — Baku ch-URS
1962 — Stoltz, Gösta vs Jimenez Alastre Jorge Ernesto — 0-1 — Varna olm
1962 — Skold, Kristian vs Nilsson, Zandor — 1-0 — Sweden
1962 — Skold, Kristian vs Soderborg, Berndt — 1/2-1/2 — Sweden
1962 — Skold, Kristian vs Buskenstrom, Sven — 1-0 — Sweden

4…Bb4+ — 11.7% (41 parties)

1961 — Kholmov, Ratmir D vs Shianovsky, Vladislav I — 0-1 — Baku ch-URS
1962 — Flores Cahuina, Rodrigo Gabriel vs Garcia, Eder Raimundo — 1-0 — Mar del Plata ARG
1965 — Perez Cascella, Julio vs Rossetto, Hector — 0-1 — Buenos Aires ch-ARG
1971 — Malmdin, Nils-Ake vs Hjorth, Sune — 0-1 — Eskilstuna SWE
1984 — Ahlback, Bror vs Rasanen, Erkki — 0-1 — ?

4…Nf6 — 5.1% (18 parties)

1954 — Ozsvath, Andras vs Honfi, Karoly — 0-1 — ?
1957 — Cafferty, Bernard vs Will, JM. — 1-0 — ?
1967 — Kiffmeyer, Constanz vs Jons, Aden — 1-0 — ?
1975 — Cleguer, Henri vs Nedelcot, Pierre — 0-1 — ?
1976 — Rasmussen, Poul vs Morgado, Juan Sebastian — 0-1 — corr WT/GT