C47k — Four Knights: Scotch, Krause Variation

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.Nxe5 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), case forte c4, case forte g4, case forte b5, case forte d5, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 4 pièces non développées (C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Bg5 — Clouer Nf6
● Bd3 — Développer Bf1

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : Bb4 actif, paire de fous, colonne e.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre.
Problèmes : roi au centre, Bc8 enfermé, 3 pièces non développées (C8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...d5 — Rupture
● ...Re — Tour sur colonne e

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C47k — Scotch Krause Variation

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 Bb4 5.Nxe5

Eval: [+0.29]

Les coups candidats

5…Qe7 — 33.7% (391 parties)

Ambassadeurs : Drimer, Dolfi (5x), Mandura, Tijana (5x), Srebrnic, Ana (4x), Portisch, Lajos (3x), Bisguier, Arthur B (3x), Bellon Lopez, Juan Manuel (3x), Medancic, Rikard (3x), Packroff, Hermann (3x)

5…Nxe4 — 28.7% (333 parties)

Ambassadeurs : Barez Menendez, Hector (4x), Gnirk, Hajo (3x), Nadyrkhanov, Sergey (3x), Mirzoev, Azer (3x), Parma, Bruno (2x), Trifunovic, Petar (2x), Minev, Nikolay N (2x), Knox, Victor W (2x)

5…O-O — 13.9% (161 parties)

Ambassadeurs : Karpatchev, Aleksandr (5x), Yurtaev, Leonid (3x), Hector, Jonny (3x), Lepelletier, Benoit (3x), Vetemaa, Juri (3x), Kochyev, Alexander (2x), Geenen, Marc (2x), Cozianu, Costin (2x)

5…Bxc3+ — 13.4% (155 parties)

Ambassadeurs : Graf, Alexander (7x), Godena, Michele (7x), Ovod, Evgenija (4x), Dragieva, Denitza (4x), Slobodjan, Roman (3x), Mitkov, Nikola (2x), Marciano, David (2x), Rausis, Igors (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5…Qe7	5…Nxe4	5…O-O	5…Bxc3+
<1800	33	27%	21%	12%	6%
1800-2200	302	33%	30%	11%	11%
2200-2600	546	37%	23%	19%	18%
2600+	15	47%	—	13%	40%

Évolution par décennie (% des parties)

Décennie	N parties	5…Qe7	5…Nxe4	5…O-O	5…Bxc3+
1900s	1	100%	—	—	—
1910s	3	33%	67%	—	—
1920s	2	50%	—	—	—
1930s	2	—	50%	—	—
1940s	1	100%	—	—	—
1950s	17	47%	41%	6%	—
1960s	28	57%	32%	7%	—
1970s	25	44%	32%	12%	—
1980s	45	33%	62%	2%	—
1990s	261	25%	42%	13%	10%
2000s	340	27%	28%	16%	14%
2010s	280	40%	20%	18%	11%
2020s	156	43%	11%	10%	33%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5…Qe7	40%	43%	▲ +2.6%
5…Nxe4	20%	11%	▼ -9.1%
5…O-O	18%	10%	▼ -8.6%
5…Bxc3+	11%	33%	▲ +21.6%

Parties historiques

5…Qe7 — 33.7% (391 parties)

1907 — Nimzowitsch, Aron vs Leonhardt, Paul — 1-0 — Ostende II
1919 — Spielmann, Rudolf vs Bogoljubow, Efim — 1-0 — Stockholm SWE
1924 — Bolland, Benno vs Dewing Leslie Charles Gwyn — 1-0 — Hastings Town Hall
1949 — Sefc, Jan vs Prins, Laura — 0-1 — Trencianske Teplice SVK
1955 — Hostinsky, Zdenek vs Kozma, Julius — 1/2-1/2 — Prague CZE

5…Nxe4 — 28.7% (333 parties)

1910 — Chodera vs Eljaschoff, Moissei Z — 0-1 — Hamburg GER
1910 — Chodera, Miroslav vs Tenner, Oscar — 1/2-1/2 — Hamburg II
1938 — Ropstorff vs Gruenfeld, Ernst — 1-0 — Krakow Krakow POL
1954 — Barden, Leonard vs Phillips Andrea — 1/2-1/2 — Nottingham ch-BCF plof
1954 — Clarke, Paul R H vs Fazekas, Stephan — 1/2-1/2 — Nottingham ch-BCF

5…O-O — 13.9% (161 parties)

1955 — Mackie, William S vs Grivainis, Konstantin — 0-1 — Cape Town RSA
1960 — Drimer, Dolfi vs Donner, Jan-Hein — 1/2-1/2 — Leipzig GER
1963 — Tokarev, Aleksandr vs Shianovsky, Vladislav I — 0-1 — Kiev UKR
1979 — Polovodin, Igor A vs Berkovich, Mark A — 1/2-1/2 — Liepaia
1979 — Yurtaev, Leonid vs Kochyev, Alexander — 1/2-1/2 — Frunze KGZ

5…Bxc3+ — 13.4% (155 parties)

1992 — Pommerel Brouwer, H vs Leuschner Harry — 1-0 — CIF-FT-92-0372A
1993 — Thorhallsson, Throstur vs Graf, Alexander — 1/2-1/2 — Katerini
1993 — Kotsur, Pavel vs Graf, Alexander — 0-1 — Akmola Omarov Mem
1993 — Magomedov, Magaram vs Vahidov, Tair — 1/2-1/2 — Chelyabinsk RUS
1994 — Rublevsky, Sergei vs Svidler, Peter — 1/2-1/2 — St Petersburg RUS

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	● centre 2v1	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● c4 (2v0), ● g4 (2v1), ● b5 (2v0), ● d5 (2v1)	—
Cases faibles	—	—
Centre	● d5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	—	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 5)
Bb4		● Bb4 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● knight c3	—
Non développées	4 (c1, f1, a1, h1)	3 (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	semi-ouvert
Ruptures	● d4-d5, ● f2-f3	● …d7-d6, ● …d7-d5

Partie
1907 Ostende II – Round 8 – Nimzowitsch, Aron – 1-0 – Leonhardt, Paul – G102 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 Qxc6 8. O-O Bxc3 9. bxc3 Qxc3 10. Rb1 O-O
1919 Stockholm – Round 3 – Spielmann, Rudolf – 1-0 – Bogoljubow, Efim – G21 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O Bxc3 10. Bxc3 Qxe4
1927 London Olympiad 1st – Round 8.42 – Weenink, Henri – 1-0 – Censer, M. – G85 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe5 6. dxe5 Nxe4 7. Qg4 Nxc3 8. Qxb4 Nd5 9. Qg4 Kf8 10. Qf3 Nb6
1931 Prague ol – Round 6 – Weenink, Henri – 1/2-1/2 – Apscheneek, Fricis – G22 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 Bb4 5. Nxe5 Nxe5 6. dxe5 Nxe4 7. Qg4 Nxc3 8. Qxb4 Nd5 9. Qe4 Ne7 10. Bg5 d5
1938 Krakow Krakow POL – Round ? – Ropstorff – 1-0 – Gruenfeld, Ernst – G28 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. a3 Nxd4 9. axb4 Nxc2+ 10. Kd2 Nxa1
1949 Trencianske Teplice – Round 17 – Sefc, Jan – 0-1 – Prins, Laura – G111 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O Bxc3 10. Bxc3 Qf4+
1954 Nottingham ch-BCF – Round 9 – Clarke, Paul R H – 1/2-1/2 – Fazekas, Stephan – G30 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Nd5+ 8. c3 Qf6 9. Qxf6 Nxf6 10. Nxc6 Bxc3+
1955 CSR Ch – Round 11 – Hostinsky, Zdenek – 1/2-1/2 – Kozma, Julius – G84 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O d6 10. f3 Bd7
1955 CSR Ch – Round 13 – Hostinsky, Zdenek – 0-1 – Stulik, Vlastimil – G101 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O Bxc3 10. Bxc3 Qf4+
1955 CSR Ch Army – Round 17 – Nan Shwe Yin Thun – 1/2-1/2 – Kozma, Julius – G24 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 Qxc6 8. O-O O-O 9. d5 Qc5 10. Be3 Qa5
1955 Manhattan CC Ch 5556 – Round 9 – Bernstein, Sidney – 1/2-1/2 – Bisguier, Arthur B – G43 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 dxc6 8. O-O Qh4 9. Bf3 O-O 10. Ne2 Bd6
1956 Dresden – Round 15 – Trajkovic, Dusan – 0-1 – Dittmann, Sieghart – G98 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. a3 Ba5 9. Nxc6 dxc6 10. Qe5+ Qe7
1957 Warchau ch POL – Round 12 – Kmita, Zbigniew – 1/2-1/2 – Sliwa, Bogdan – G65 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O Bxc3 10. Bxc3 Qf4+
1958 BUL Ch – Round ? – Minev, Nikolay N – 1-0 – Ivanov, Pavlin Nikolay – G61 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Ne4+ 8. c3 Qf6 9. Qxf6 Nxf6 10. Nxc6 Bxc3+
1958 Haifa/Tel Aviv – Round 11 – Czerniak, Moshe – 1-0 – Burstein, S – G63 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 dxc6 8. O-O Qh4 9. Qd3 Be6 10. Qg3 Qxg3
1958 Hamburg Ch – Round 6 – Tomrell, Hugo – 1-0 – Rellstab, Ludwig Sr – G12 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe5 6. dxe5 Nxe4 7. Qg4 d5 8. Qxg7 Rf8 9. a3 Bc5 10. Nxe4 dxe4
1960 Leipzig olm fin-A – Round 6 – Drimer, Dolfi – 1/2-1/2 – Donner, Jan-Hein – G108 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 O-O 6. Nxc6 bxc6 7. Bd3 Nxe4 8. Bxe4 Bxc3+ 9. bxc3 Re8 10. O-O Rxe4
1961 Maroczy Memorial Budapest HUN – Round 1 – Drimer, Dolfi – 1/2-1/2 – Bisguier, Arthur B – G52 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 dxc6 8. O-O Qh4 9. Bf3 O-O 10. g3 Qh3
1961 Oberhausen etc – Round 8 – Ballbe F – 1/2-1/2 – Marovic, Drazen – G213 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O Bxc3 10. Bxc3 Qf4+
1962 URS-JUG2 – Round 1 – Ankerst, Marjan – 1/2-1/2 – Tukmakov, Vladimir B – G11 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. Nxc6 dxc6 9. Qe5+ Be6 10. a3 Bd6
1963 UKR Ch – Round 15 – Tokarev, Aleksandr – 0-1 – Shianovsky, Vladislav I – G101 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 Bb4 5. Nxe5 O-O 6. Qd3 d5 7. Nxc6 bxc6 8. exd5 Qxd5 9. a3 Bxc3+ 10. Qxc3 Ne4
1964 RSFSR-HUN – Round 4.11 – Rashkovsky, Nukhim N – 1/2-1/2 – Tompa, Janos – G28 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qf3 Nf6 7. Be3 Qe7 8. Bd3 Nxe5 9. dxe5 Qxe5 10. O-O O-O
1965 Buenos Aires – Round 4 – Rollansky, Ruben – 0-1 – Panno, Oscar – G34 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O d6 10. f3 Bd7
1966 Parcetic Memorial 2nd – Round 11 – Maric, Rudolf – 1/2-1/2 – Dely, Peter – G51 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Qe2 dxc6 8. a3 Qxe2+ 9. Bxe2 Bxc3+ 10. bxc3 Bf5 1/2-1/2
1968 The Hague – Round 7 – Van Geet, Dirk Daniel – 1-0 – Langeweg, Kick – G14 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 d6 9. f4 Qe6 10. Qb5+ 1-0
1969 Hastings6970 – Round 1 – Drimer, Dolfi – 0-1 – Portisch, Lajos – G4 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O Bxc3 10. Bxc3 Qf4+
1969 Hastings6970 – Round 9 – Drimer, Dolfi – 1-0 – Littlewood, John E – G42 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. a3 Qh4 9. Nxc6 dxc6 10. axb4 Bg4
1969 Raach zt – Round 13 – Drimer, Dolfi – 1/2-1/2 – Portisch, Lajos – G116 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 dxc6 8. O-O Qh4 9. Re1 O-O 10. g3 Qh3
1969 Uppsala Open – Round ? – Westerinen, Heikki M.J. – 1/2-1/2 – Olsson, Ake – G8 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Qe2 dxc6 8. Bd2 Qxe2+ 9. Bxe2 Be6 10. O-O-O O-O-O
1969 WchT U26 fin-B 16th – Round 9.2 – Angantysson, Haukur – 0-1 – Polgar, Istvan – G54 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. a3 Nxd4 9. axb4 Nxc2+ 10. Kd2 Nxa1
41. Olympiad Open 2014 – Round 7.18 – Rohl Montes, Juan Armando – 1/2-1/2 – Beliavsky, Alexander G – G492 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 dxc6 8. O-O Qh4 9. Re1 O-O 10. g3 Qh3
Las Palmas 1981 – Round 9 – Bellon Lopez, Juan Manuel – 0-1 – Larsen, Bent – G24 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O d6 10. Re1 Re8
Lindores Abbey Tal Memorial 2021 – Round 8.35 – Muzychuk, Mariya – 0-1 – Esipenko, Andrey – G367 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Nxc6 Qxe4+ 7. Be2 Qxc6 8. O-O Bxc3 9. bxc3 Qxc3 10. Rb1 O-O
Saint Louis Blitz 2019 – Round 5.5 – Karjakin, Sergey – 1-0 – Mamedyarov, Shakhriyar – G25 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O 9. O-O-O d6 10. f3 Re8
World Blitz 2022 – Round 1.51 – Gadimbayli, Abdulla – 1/2-1/2 – Sjugirov, Sanan – G42 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Bxc3+ 6. bxc3 Qe7 7. Nxc6 Qxe4+ 8. Qe2 dxc6 9. Qxe4+ Nxe4 10. Bb2 Be6
World Blitz 2022 – Round 21.62 – Begmuratov, Khumoyun – 0-1 – Christiansen, Johan-Sebastian – G1139 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. a3 Nxd4 9. axb4 Nxc2+ 10. Kd2 Nxa1

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