C78c — Spanish: Moeller Defence, 6.Nxe5

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Bc5 6.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 g4, paire de fous.
Faiblesses adverses : Bc8 enfermé, roi noir au centre.
Problèmes : Bc1 enfermé, 3 pièces non développées (B1, C1, A1).
Plans :
● Nbd2 — Développer Nb1
● d3 — Libérer Bc1
● c3 — Préparer d4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte b4, case forte d4, Bc5 actif, paire de fous, colonne e.
Faiblesses adverses : Bc1 enfermé, pawn e4 en prise, knight e5 en prise.
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

C78c — Moeller Defence

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Bc5 6.Nxe5

Eval: [+0.12]

Les coups candidats

6…Nxe5 — 83.3% (379 parties)

Ambassadeurs : Alekhine, Alexander (7x), Grazinys, Vidmantas (7x), Izeta Txabarri, Felix (4x), Fernandez Garcia, Jose Luis(2) (4x), Marcotulli, Giancarlo (3x), Gross, David (3x), Garus, Edward (3x), Michell, Reginald (2x)

6…O-O — 5.9% (27 parties)

Ambassadeurs : Matthaus Seibold (1x), Keres, Paul (1x), Schenk, Jannik (1x), Keres, P. (1x), Koskinen, Pertti (1x), Speets (1x), Rjabinin (1x), Grigoriev, A. (1x)

6…Nxe4 — 5.5% (25 parties)

Ambassadeurs : Sternik, Ryszard (2x), Pillsbury, Harry (1x), England, Ethan (1x), Visitor, A. (1x), Thoms, Henry James Macthom (1x), ? (1x), Tarrasch, Siegbert (1x), Leonhardt, Paul (1x)

6…Bxf2+ — 3.5% (16 parties)

Ambassadeurs : Capablanca, Jose (1x), Johan Jacob Belinfante (1x), Rodriguez Izquierdo, Benjamin (1x), Sanz Mayo, Juan Carlos (1x), Manriquez, David (1x), Simard, Francois (1x), Aguado Hernandez, Diego (1x), Coullant, J (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	6…Nxe5	6…O-O	6…Nxe4	6…Bxf2+
<1800	29	62%	10%	14%	10%
1800-2200	103	83%	10%	3%	3%
2200-2600	120	99%	1%	—	—
2600+	7	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	6…Nxe5	6…O-O	6…Nxe4	6…Bxf2+
1900s	3	33%	—	67%	—
1910s	2	100%	—	—	—
1920s	13	77%	—	15%	8%
1930s	7	57%	29%	14%	—
1940s	9	67%	—	33%	—
1950s	8	100%	—	—	—
1960s	14	93%	—	7%	—
1970s	11	82%	—	9%	—
1980s	17	76%	12%	6%	6%
1990s	94	86%	4%	4%	3%
2000s	139	85%	8%	2%	4%
2010s	105	77%	8%	7%	6%
2020s	33	100%	—	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
6…Nxe5	77%	100%	▲ +22.9%
6…O-O	8%	0%	▼ -7.6%
6…Nxe4	7%	0%	▼ -6.7%
6…Bxf2+	6%	0%	▼ -5.7%

Joueurs célèbres

Champions du monde dans cette position

Alekhine, Alexander — 7 parties
Anand, Viswanathan — 2 parties

Parties historiques

6…Nxe5 — 83.3% (379 parties)

1907 — Schories, Georg vs Spielmann, Rudolf — 1/2-1/2 — Ostende II
1910 — Konstantin Alekseyevich Vygodchikov vs Alekhine, Alexander — 0-1 — Correspondence game
1912 — Schories, Georg vs Michell, Reginald — 0-1 — Richmond
1922 — Takacs, Sandor vs Alekhine, Alexander — 0-1 — Vienna AUT
1923 — Groen, Silvain Izaak vs Alekhine, Alexander — 0-1 — Portsmouth

6…O-O — 5.9% (27 parties)

1934 — Matthaus Seibold vs Keres, Paul — 0-1 — GER corr
1935 — Schenk, Jannik vs Keres, P. — 1-0 — corr IFSB
1981 — Rjabinin vs Grigoriev, A. — 0-1 — ?
1985 — Koskinen, Pertti vs Speets — 1-0 — EU-ch GT236 corr
1993 — Hinks-Edwards, Thomas R J vs Ram, Andrew — 1-0 — London ENG

6…Nxe4 — 5.5% (25 parties)

1902 — Pillsbury, Harry vs England, Ethan — 1/2-1/2 — Hannover GER
1903 — Leonhardt, Paul vs Loman, Rudolf — 1-0 — Hilversum NED
1924 — Visitor, A. vs Thoms, Henry James Macthom — 0-1 — Southport ENG
1928 — Joyeux Steiner, Gael vs Steiner, Herman — 1-0 — Budapest HUN
1936 — ? vs Tarrasch, Siegbert — 0-1 — Munich GER

6…Bxf2+ — 3.5% (16 parties)

1920 — Capablanca, Jose vs Johan Jacob Belinfante — 1-0 — The Hague NED
1989 — Rodriguez Izquierdo, Benjamin vs Sanz Mayo, Juan Carlos — 1-0 — Valladolid
1994 — Aguado Hernandez, Diego vs Coullant, J — 1-0 — Match EUSKADI - CANT
1995 — Rodriguez Fernandez, Juan Ramon vs Cascudo Pueyo, Ignacio — 1-0 — ESP
1998 — Manriquez, David vs Simard, Francois — 1-0 — Quebec CAN

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6
Passés	—	—
Majorité	● centre 2v1	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g4 (2v1)	● b4 (2v0), ● d4 (2v0)
Cases faibles	—	—
Centre	—	● d4 (2v0), ● e4 (1v0), ● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	—	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Ba4	● Ba4 Ok (mob. 3)
Bc5		● Bc5 Actif (mob. 10)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● pawn f2	—
Non développées	3 (b1, c1, a1)	3 (c8, a8, h8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Au centre !
Droits de roque	—	O-O / O-O-O

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c2-c3, ● d2-d3, ● f2-f3	● …d7-d6, ● …d7-d5

Partie
1902 Hannover blind sim – Round 1.9 – Pillsbury, Harry – 1/2-1/2 – England, Ethan – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe4 7. Nxc6 dxc6 8. Qe2 Qe7 9. d3 Nf6 10. Qxe7+ Bxe7
1903 It (Men) Hilversum NED – Round 3 – Leonhardt, Paul – 1-0 – Loman, Rudolf – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe4 7. Nxf7 Qh4 8. Nxh8 Nxf2 9. Qe1+ Qe4 10. d4 Bxd4
1907 Ostende II – Round 20 – Schories, Georg – 1/2-1/2 – Spielmann, Rudolf – G242 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Ba7 8. dxe5 Nxe4 9. Qg4 Nxf2 10. Rxf2 Qe7
1922 Vienna – Round 4 – Takacs, Sandor – 0-1 – Alekhine, Alexander – G86 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Qe2 Be7 9. Qxe4 Ng6 10. c4 O-O
1925 Hastings Premier /26 6th – Round 6 – Michell, Reginald – 0-1 – Wahltuch, Victor – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Qe2 Be7 9. Qxe4 Ng6 10. c4 O-O
1926 Buenos Aires exh – Round ? – Proassi, Piacenti – 1-0 – Alekhine, Alexander – G36 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Re1 Be7 9. Rxe4 Ng6 10. c4 b5
1926 Buenos Aires exh – Round 1 – Illa, Rolando – 0-1 – Alekhine, Alexander – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. dxc5 Nxc5 9. Re1 O-O 10. Rxe5 Nxa4
1928 Budapest – Round 1 – Joyeux Steiner, Gael – 1-0 – Steiner, Herman – G31 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe4 7. Qe2 Nxe5 8. Qxe4 Qe7 9. c3 Ng6 10. Qf3 O-O
1932 Londen – Round 1 – Kashdan, Isaac – 1-0 – Milner Barry, Philip – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Re1 Be7 9. Rxe4 Ng6 10. c4 O-O
1936 Herning – Round 1 – Gemzoe, Jacob – 0-1 – Andersen, Erik – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. dxe5 Qh4 9. Be3 O-O 10. Bxc5 Nxc5
1936 Leningrad Ch – Round 1 – Rauzer, Vsevolod – 1-0 – Vasiliev, Viktor A – G32 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Qe2 Be7 9. Qxe4 Ng6 10. c4 O-O
1936 Munich – Round 1 – ? – 0-1 – Tarrasch, Siegbert – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe4 7. Nxc6 dxc6 8. Qf3 Qh4 9. Nc3 Nxc3 10. Bxc6+ bxc6
1942 Munich – Round 1 – Unzicker, Ferdinand, Dr. – 1-0 – Bonveccio – G14 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe4 7. Qe2 Nxe5 8. Qxe4 Qe7 9. d4 Ng6 10. Qd3 Ba7
1946 Hastings4647 – Round 7 – Yanofsky, Daniel Abraham – 1/2-1/2 – Prins, Laura – G30 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. dxc5 Nxc5 9. Qd4 Qe7 10. Bf4 f6
1949 URS Ch, semi final – Round 15 – Geller, Efim P – 1/2-1/2 – Vasiliev, Viktor A – G112 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Re1 Be7 9. dxe5 Nc5 10. Nc3 Nxa4
1955 Long Beach US-open – Round 11 – Sherwin, James T – 1-0 – Addison, William Grady – G64 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Qe2 Be7 9. Qxe4 Nc4 10. Re1 Nb6
1959 Skittles – Round ? – Blackstone, John – 0-1 – Kimball, Tom – G38 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Bxd4 8. Qxd4 Ng6 9. Bg5 h6 10. Bxf6 Qxf6
1961 City CC Open – Round ? – Jursevskis Miervaldis – 1-0 – Wuntschek, Siegfried – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Bxd4 8. Qxd4 Qe7 9. f4 Nc6 10. Bxc6 dxc6
1961 WchT U26 08th – Round 3.1 – Stein, Leonid – 1/2-1/2 – Radulov, Ivan – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Qe2 Qe7 9. Qxe4 Ng6 10. Qd3 Ba7
1962 Varna olm – Round 5 – Filipowicz, Andrzej – 1-0 – Fieros – G237 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Bxd4 8. Qxd4 Qe7 9. Bf4 Nc6 10. Bxc6 dxc6
1963 Corr – Round 1 – Barry Bertomeu, Enrique – 1-0 – Amrendra Nath Dave – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Bxd4 8. Qxd4 Qe7 9. Nc3 O-O 10. Bg5 c6
1964 WchT U26 11. fin-A – Round 6.2 – Steiner, Ulrich A – 0-1 – Radulov, Ivan – G102 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Qe2 Qe7 9. Qxe4 Nc6 10. Qg4 Nxd4
1965 Novi Sad – Round 1 – Ciric, Dragoljub M – 1-0 – Nikolac, Juraj – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Qe2 Be7 9. Qxe4 Ng6 10. f4 O-O
1968 Copenhagen ch-DEN – Round 1 – Petersen, Finn – 1-0 – Pedersen, Carl Aage – G34 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Be7 8. dxe5 Nxe4 9. Qg4 Ng5 10. f4 h5
Las Palmas 1996 – Round 3 – Anand, Viswanathan – 1-0 – Ivanchuk, Vasyl – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. Re1 Be7 9. Rxe4 Ng6 10. c4 O-O

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