Structure de pions
♔ Blancs ♚ Noirs
Pions doublés
Pions isolés
Arriérés
Chaînes
Passés
Majorité
Cases
♔ Blancs ♚ Noirs
Cases fortes ● d5 (2v0)
Cases faibles
Centre ● d5 (2v0), ● e5 (1v0)
Colonnes et diagonales
♔ Blancs ♚ Noirs
Pièces
♔ Blancs ♚ Noirs
Bc1 ● Bc1 Non développé (mob. 0)
Bc4 ● Bc4 Actif (mob. 9)
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 fermé
Ruptures ● …d7-d5, ● …f7-f5

C61b — Spanish: Bird’s, 4.Bc4

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Bc4 *   ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1
bR
bB
bQ
bK
bB
bN
bR
bP
bP
bP
bP
bPPion sous pression
bP
bP
Case forte (2v0)
bPpawn en prise !
wBFou actif — mobilité 9
bN
wPPion central
wN
wP
wP
wP
wP
wP
wP
wP
wR
wN
wB
wQ
wK
wR
abcdefgh
Plans. Nxd4 (Cavalier centralisé en d4 — 33 % des parties) ; Bxf7+ (Fou actif (mobilité 8) — 10 % des parties) ; c3 (Renforcer le centre — 8 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8
wR
wK
wQ
wB
wN
wR
wP
wP
wP
wP
wP
wP
wP
wN
wP
bN
wB
bPpawn en prise !
bP
bP
bPPion sous pression
bP
bP
bP
bP
bR
bN
bBFou actif — mobilité 5
bK
bQ
bB
bR
hgfedcba
Plans. ...Nxf3+ (Capture en f3 — 41 % des parties) ; ...Bc5 (Fou actif (mobilité 6), Développer f8 — 33 % des parties) ; ...d6 (Libérer Bc8 — 10 % des parties) ; ...b5 (Expansion aile dame — 8 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Partie
1906 BCF Ch 3rd – Round 6 – Mercer, Arthur Emerson – 0-1 – Blackburne, Joseph – G10
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. c3 Nxf3+ 6. Qxf3 Nf6 7. d3 Be7 8. O-O Bg4 9. Qe3 g5 10. Nd2 h6
1907 Ostende II – Round 2 – Důras, Oldřich – 1-0 – Blackburne, Joseph – G22
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. Nxd4 exd4 6. c3 dxc3 7. Nxc3 c6 8. O-O Be6 9. Bxe6 fxe6 10. d4 Nf6
1907 Vienna – Round 13 – Loewy, Leopold Jr – 1-0 – Spielmann, Rudolf – G56
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Bc5 5. c3 Nxf3+ 6. Qxf3 Nf6 7. d3 d6 8. Be3 O-O 9. Nd2 c6 10. O-O Bg4
1910 BCF Ch 7th – Round 2 – Lewis, John A – 1/2-1/2 – Blackburne, Joseph – G4
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. Nxd4 exd4 6. d3 g6 7. O-O Bg7 8. c3 Ne7 9. Qb3 O-O 10. cxd4 Bxd4
1919 Rotterdam NRS – Round 7 – Van Gelder, GJ. – 1-0 – Oskam, Gerard – G19
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Nxf3+ 5. Qxf3 Qf6 6. Qg3 d6 7. d3 h6 8. Nc3 c6 9. f4 Be6 10. fxe5 Qxe5
1933 Ebensee – Round 1 – Spielmann, Rudolf – 1-0 – Prins, Lodewijk – G4
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 b5 5. Bxf7+ Kxf7 6. Nxd4 Qh4 7. Qf3+ Nf6 8. Nxb5 c6 9. N5c3 d5 10. d3 Rb8
1936 Muenchen ol – Round 15 – Böök, Eero – 1/2-1/2 – Prins, Lodewijk – G29
1. e4 Nc6 2. Nf3 e5 3. Bb5 Nd4 4. Bc4 Bc5 5. Nxd4 Bxd4 6. c3 Bb6 7. d4 Qh4 8. O-O Nf6 9. Nd2 d6 10. Nf3 Qh5
1946 Moscow RUS – Round 1 – Chistiakov, Alexander – 1-0 – Ravinsky, Grigory – G34
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 b5 5. Bxf7+ Kxf7 6. Nxd4 Qh4 7. Qf3+ Nf6 8. Nxb5 Bc5 9. d3 Rf8 10. Qg3 Qh5
1947 Moscow Ch – Round 1 – Simagin, Vladimir – 1/2-1/2 – Ragozin, Viacheslav – G25
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Nxf3+ 5. Qxf3 Nf6 6. Nc3 d6 7. d3 Bg4 8. Qg3 Qd7 9. h3 Be6 10. Bg5 Be7
1947 Moscow RUS – Round 1 – Chistiakov, Alexander – 1/2-1/2 – Ravinsky, Grigory – G19
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Bc5 5. Nxd4 Bxd4 6. c3 Bb6 7. d4 Qe7 8. O-O d6 9. a4 a6 10. a5 Ba7
1948 GER Ch – Round 11 – Unzicker, Wolfgang – 1-0 – Nuernberg, Friedrich – G26
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Bc5 5. Nxd4 Bxd4 6. c3 Bb6 7. d4 Qe7 8. O-O d6 9. f4 Be6 10. Bxe6 Qxe6
1949 URS Ch, semi final – Round 11 – Geller, Efim P – 1-0 – Makogonov, Vladimir – G83
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. Nxd4 exd4 6. O-O Nf6 7. c3 Nxe4 8. Qh5 d5 9. Bxd5 Nd6 10. Qe5+ Be7
1952 URS ch sf – Round 1 – Terpugov, Evgeny – 1-0 – Fridstein, German – G6
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Bc5 5. Nxd4 Bxd4 6. O-O Nf6 7. c3 Bb6 8. d4 Qe7 9. a4 a6 10. f4 exd4
1964 Bordeaux Open Bordeaux FRA – Round 2 – Maric Vild, Fabijan – 1-0 – Boutteville, Cesar – G12
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Nxf3+ 5. Qxf3 Qf6 6. Qg3 Bc5 7. Nc3 c6 8. d3 h6 9. f4 d6 10. fxe5 Qxe5
1966 IBM-B – Round 6 – Dueckstein, Andreas – 1-0 – Bakker, Piet – G18
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Nxf3+ 5. Qxf3 Qf6 6. Nc3 Qxf3 7. gxf3 c6 8. d3 d6 9. Be3 g6 10. d4 Bh6
1969 Venice – Round 13 – Robatsch, Karl – 1-0 – Rosino, Antonio – G81
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 Nxf3+ 5. Qxf3 Qf6 6. Qg3 d6 7. Nc3 c6 8. O-O Be6 9. d3 h6 10. Bxe6 Qxe6

C61b — Spanish: Bird’s (1906)
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Bc4
Les coups candidats
4…Nxf3+ — 46.8% (290 parties)
Ambassadeurs : Boutteville, Cesar (3x), Kelemen, Gyorgy (3x), Vrana, Frantisek (3x), Griffiths, Peter C (2x), Kupreichik, Viktor D (2x), Lostuzzi, Manlio (2x), Barlocco, Carlo (2x), Jost, Horst (2x)
4…Bc5 — 22.0% (136 parties)
Ambassadeurs : Kapengut, Albert (2x), Malaniuk, Vladimir P (2x), Konicek, Petr (2x), Shukurova, Mehriban (2x), Thomas, Joseff (2x), Khezrian, Nooralzahra (2x), Ekstrom, Folke (1x), Carrisson, G. (1x)
4…d6 — 8.6% (53 parties)
Ambassadeurs : Abramovic, Bosko (2x), Karklins, Erik (2x), Peptan, Corina-Isabela (2x), Cross, Robert Gary (1x), Matzner, Stephen (1x), Westman, Jan Erik (1x), Witt, Leslie (1x), Abravanel, Chely (1x)
4…b5 — 6.6% (41 parties)
Ambassadeurs : Webb, Simon (1x), Garside, R (1x), Zaitsev, Aleksandr (1x), Timchenko, Alexandr (1x), De Coverly, Roger D (1x), Bryans, Nathaniel (1x), Harabor, Mihai (1x), Stremmel, Steve (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4…Nxf3+ 4…Bc5 4…d6 4…b5
<1800 71 35% 24% 10% 14%
1800-2200 226 60% 17% 4% 6%
2200-2600 101 45% 39% 7% 1%
Évolution par décennie (% des parties)
Décennie N parties 4…Nxf3+ 4…Bc5 4…d6 4…b5
1950s 9 33% 44% 11% 11%
1960s 18 56% 22% 6% 6%
1970s 20 55% 25% 5% 15%
1980s 49 37% 35% 8% 8%
1990s 138 35% 28% 9% 4%
2000s 205 52% 20% 11% 5%
2010s 161 49% 16% 6% 10%
2020s 19 79% 11%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4…Nxf3+ 49% 79% ▲ +29.9%
4…Bc5 16% 11% ▼ -5.0%
4…d6 6% 0% ▼ -6.2%
4…b5 10% 0% ▼ -9.9%
Parties historiques
4…Nxf3+ — 46.8% (290 parties)
1952 — Bobekov, Radko vs Tsvetkov, Alexandar K — 1/2-1/2 — Sofia BUL
1953 — Leepin, Peter vs Marmoud, Edmond — 1-0 — Lucerne SUI
1955 — Solecki, Zbigniew vs Stoklosa, Jakub — 0-1 — Poland ch13
1961 — Rotstein, Jefim vs Simkin, Y — 0-1 — ?
1964 — Abhishek Mari S vs Boutteville, Cesar — 1-0 — Bordeaux op Bordeaux FRA
4…Bc5 — 22.0% (136 parties)
1950 — Pechan, Z. vs Vesely, Jiri — 0-1 — Chocen
1952 — Terpugov, Evgeny vs Fridstein, German — 1-0 — Riga LAT
1954 — Mariette, Jacques vs Javelle, Gabriel — 0-1 — cr ch FRA
1958 — Ljuboschiz, Alexander vs Ravinsky, Grigory — 0-1 — Moscow RUS
1961 — Ekstrom, Folke vs Carrisson, G. — 1-0 — corr EU/M
4…d6 — 8.6% (53 parties)
1954 — Cross, Robert Gary vs Matzner, Stephen — 1-0 — Hollywood, CA
1966 — Westman, Jan Erik vs Witt, Leslie — 0-1 — Havana CUB
1975 — Paz y Barriga, Gustavo Ing vs Muir, Walter G — 0-1 — CADAP II ol bd1 7375
1985 — Abravanel, Chely vs Alet, Jean-Pierre — 1/2-1/2 — Clermont-Ferrand FRA
1986 — Stoica, Valentin vs Abramovic, Bosko — 0-1 — Bela Crkva
4…b5 — 6.6% (41 parties)
1956 — Zaitsev, Aleksandr vs Timchenko, Alexandr — 0-1 — Moscow RUS
1965 — Webb, Simon vs Garside, R — 0-1 — GB
1976 — Abbasi, Nasser vs Falkenstein, Reinhard, Dr. — 1/2-1/2 — Hastings ENG
1977 — Carretero Ajo, Jesus vs Mendez Bayon, David — 1-0 — Valladolid
1979 — De Coverly, Roger D vs Bryans, Nathaniel — 0-1 — Basingstoke

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