C34f — KGA: Schallop Defence

1.e4 e5 2.f4 exf4 3.Nf3 Nf6 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité centre (2v1), paire de fous, colonne f.
Faiblesses adverses : Bc8 enfermé, Bf8 enfermé, roi noir au centre.
Problèmes : roi au centre, Bc1 enfermé, Bf1 enfermé, 5 pièces non développées (B1, C1, F1, A1, H1).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● Nbd2 — Développer Nb1
● d3 — Libérer Bc1
● Bd3 — Développer Bf1
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité aile_roi (4v2), paire de fous, colonne e.
Faiblesses adverses : Bc1 enfermé, Bf1 enfermé, roi blanc au centre, pawn e4 en prise.
Problèmes : roi au centre, Bc8 enfermé, Bf8 enfermé, 5 pièces non développées (B8, C8, F8, A8, H8).
Plans :
● O-O — Mettre le roi en sécurité, connecter les tours
● ...d6 — Libérer Bc8
● ...Nc6 — Développer Nb8
● ...Be7 — Développer Bf8
● ...Bg4 — Clouer Nf3

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

C34f — Schallop Defence

1.e4 e5 2.f4 exf4 3.Nf3 Nf6

Eval: [-0.34]

Les coups candidats

4.e5 — 66.0% (1264 parties)

Ambassadeurs : Bangiev, Alexander (10x), Korchut, Adam (8x), Schuett, Wilhelm (7x), Chigorin, Mikhail (6x), Van der Kooij, Paul (6x), Ventimiglia, Chuck (6x), Wall, Bill (6x), Tarmak, Mart (6x)

4.Nc3 — 28.7% (549 parties)

Ambassadeurs : Santasiere, Anthony (5x), Wall, Bill (5x), Milde, Lars (5x), Nyholm, Gustav (4x), Vann, Monica S (4x), Pintor, Manuel Abranches (4x), Rubinstein, Akiba (3x), Spielmann, Rudolf (3x)

4.d3 — 2.7% (51 parties)

Ambassadeurs : Ambos, Ilmar (4x), Pipac, Darko (3x), Schuett, Wilhelm (3x), Brauer Daniel (2x), Williams, Derek (2x), Boehme, Matthis (2x), Bautista, Eric (2x), Csoma, Robert (2x)

4.Bc4 — 1.6% (30 parties)

Ambassadeurs : Milner Barry, Philip (1x), Haygarth, Michael J (1x), Thissen, Margriet (1x), Goedbloed, Joost (1x), Curtis Dave (1x), Yahkind, Andrew (1x), Olafsson, Vilhjalmur (1x), Sveinsson, Jon Arni (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4.e5	4.Nc3	4.d3	4.Bc4
<1800	110	66%	29%	2%	2%
1800-2200	516	69%	25%	2%	2%
2200-2600	258	81%	17%	0%	0%
2600+	5	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	4.e5	4.Nc3	4.d3	4.Bc4
1860s	3	67%	—	33%	—
1870s	1	100%	—	—	—
1880s	4	75%	25%	—	—
1890s	6	50%	50%	—	—
1900s	14	50%	43%	—	—
1910s	14	36%	64%	—	—
1920s	12	8%	83%	—	—
1930s	13	31%	69%	—	—
1940s	41	56%	44%	—	—
1950s	32	69%	28%	3%	—
1960s	44	77%	20%	—	2%
1970s	66	70%	30%	—	—
1980s	95	81%	15%	2%	—
1990s	455	73%	22%	3%	1%
2000s	547	64%	28%	3%	2%
2010s	352	59%	36%	2%	2%
2020s	215	67%	27%	4%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4.e5	59%	67%	▲ +7.4%
4.Nc3	36%	27%	▼ -9.4%
4.d3	2%	4%	▲ +2.0%
4.Bc4	2%	2%	+0.2%

Joueurs célèbres

Champions du monde dans cette position

Steinitz, Wilhelm — 3 parties
Alekhine, Alexander — 2 parties
Lasker, Emanuel — 1 partie
Karpov, Anatoly — 1 partie
Karpov, Aleksandr — 1 partie

Parties historiques

4.e5 — 66.0% (1264 parties)

1863 — Aung Kyaw Hein vs Schallopp, Emil — 0-1 — Berlin GER
1867 — Kozlianinov vs Shumov, Ilya — 0-1 — ?
1875 — Chigorin, Mikhail vs Shumov Cherneshki — 1-0 — St Petersburg RUS
1881 — Chigorin, Mikhail vs Pitschel, Karl — 1-0 — DSB-2.Kongress
1881 — Winawer, Szymon vs Pitschel, Karl — 1-0 — DSB-02.Kongress+

4.Nc3 — 28.7% (549 parties)

1884 — Schallopp, Emil vs Paulsen, Louis — 1/2-1/2 — Nassengrund
1893 — Chigorin, Mikhail vs Tarrasch, Siegbert — 1/2-1/2 — St. Petersburg RUE
1896 — Steinitz, Wilhelm vs Arnoldus Van Rhijn — 1/2-1/2 — Haarlem NED
1896 — Steinitz, Wilhelm vs Esser, Jan — 1/2-1/2 — Leiden NED
1902 — Pillsbury, Harry vs Fahrni, Hans — 1-0 — Hannover GER

4.d3 — 2.7% (51 parties)

1862 — Von Hanneken, Hermann vs Vitzthum von Eckstaedt, Conrad — 0-1 — Duesseldorf GER
1955 — Andresen, Ingolf vs Petersen Holger — 0-1 — Copenhagen DEN
1988 — Hansen, Aage vs Knafo, Michael — 0-1 — ?
1988 — Pitre, Hanniegn vs Barbeau, Robert — 0-1 — Vancouver BC CAN
1991 — Kivimaki, Jaakko vs Oim, Tonu — 0-1 — Kuopio

4.Bc4 — 1.6% (30 parties)

1963 — Milner Barry, Philip vs Haygarth, Michael J — 0-1 — Bath ch-BCF
1993 — Martinez Semprun Fernando vs Kolev, Atanas — 0-1 — Villalba op
1994 — Olafsson, Vilhjalmur vs Sveinsson, Jon Arni — 0-1 — Simrishamn
1997 — Curtis Dave vs Yahkind, Andrew — 0-1 — ?
1997 — Huggan, Philip vs Klokow, John — 1/2-1/2 — Kent Oliver Memorial

	♔ Blancs	♚ Noirs
Pions doublés	—	● f4, ● f7
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	—
Passés	—	—
Majorité	● centre 2v1	● aile_roi 4v2

Cases

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

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● f	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bf1	● Bf1 Non développé (mob. 5)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	5 (b1, c1, f1, a1, h1)	5 (b8, 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	semi-ouvert
Ruptures	● c2-c3, ● d2-d3, ● e4-e5	● …c7-c6, ● …c7-c5, ● …d7-d6, ● …d7-d5

Partie
1902 Hannover blind sim – Round 1.12 – Pillsbury, Harry – 1-0 – Fahrni, Hans – G4 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. e5 Nh5 6. d4 Be7 7. Be2 Be6 8. O-O g6 9. Ne1 Ng7 10. Bxf4 g5
1903 Vienna Gambit – Round 1 – Chigorin, Mikhail – 0-1 – Mieses, Jacques – G31 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Nc3 d5 6. d4 g5 7. Bd3 Nc6 8. O-O g4 9. Bb5 gxf3 10. Qxf3 Qh4
1903 Vienna Gambit – Round 1 – Chigorin, Mikhail – 1-0 – D Marco, Gianni – G70 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Be2 d6 6. O-O dxe5 7. Nxe5 Bc5+ 8. Kh1 Nf6 9. Nd3 Bb6 10. Nxf4 O-O
1903 Vienna Gambit – Round 1 – D Marco, Gianni – 0-1 – Mieses, Jacques – G9 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Be2 g5 6. O-O d6 7. d4 g4 8. Ne1 dxe5 9. Bxg4 Bxg4 10. Qxg4 Nf6
1903 Vienna Gambit – Round 1 – Gunsberg, Isidor – 1-0 – Mieses, Jacques – G46 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. e5 Ne4 6. d3 Nxc3 7. bxc3 g5 8. d4 g4 9. Ng1 Qh4+ 10. Ke2 f3+
1903 Vienna Gambit – Round 1 – Marshall Viele, Fabrizio Aaron – 1-0 – Mieses, Jacques – G66 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Nc3 d6 6. Bc4 Nc6 7. d4 dxe5 8. Qe2 Bb4 9. d5 Ne7 10. Nxe5 Nf6
1903 Vienna Gambit – Round 1 – Marshall Viele, Fabrizio Aaron – 1/2-1/2 – Schlechter, Carl – G47 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d6 6. Bc4 Nc6 7. O-O dxe5 8. Qe2 Bg4 9. Nc3 Bd6 10. dxe5 Bc5+
1903 Vienna Gambit – Round 1 – Pillsbury, Harry – 1-0 – Mieses, Jacques – G18 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Nc3 d6 6. Bc4 Be6 7. Bxe6 fxe6 8. Qe2 d5 9. d4 Nc6 10. g4 fxg3
1912 Opatija – Round ? – Lowtzky, Mojsesz – 0-1 – Nyholm, Gustav – G66 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. e5 Nh5 6. d4 g5 7. Be2 g4 8. O-O Rg8 9. Ne1 Bh6 10. Bd3 Be6
1912 Opatija – Round 1 – Reti, Richard – 0-1 – Nyholm, Gustav – G18 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. c4 Nc6 7. cxd5 Qxd5 8. Nc3 Bb4 9. Kf2 Bxc3 10. bxc3 Bg4
1912 Opatija – Round 1 – Von Freymann, Sergey – 1-0 – Důras, Oldřich – G5 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 Bc5 5. e5 Nh5 6. d4 Bb4 7. g4 fxg3 8. Ng5 g6 9. Qf3 Qe7 10. Bc4 f6
1912 Opatija – Round 13 – Rosselli del Turco, Stefano – 1-0 – Nyholm, Gustav – G54 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 Nc6 5. d4 d5 6. exd5 Nxd5 7. Nxd5 Qxd5 8. Bxf4 Bd6 9. Bxd6 Qxd6 10. c3 Bg4
1912 Opatija – Round 2 – Réti, Richard – 1-0 – Szekely, Jeno – G25 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d6 6. Nc3 dxe5 7. Qe2 Bg4 8. Qxe5+ Qe7 9. Nd5 Nc6 10. Nxe7 Nxe5
1912 Opatija – Round 3 – Flamberg, Alexander – 1-0 – Nyholm, Gustav – G26 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d6 6. Bc4 d5 7. Bd3 g5 8. O-O Bh6 9. Nc3 Be6 10. Ne2 Nd7
1912 Opatija – Round 5 – Spielmann, Rudolf – 1-0 – Reti, Richard – G33 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. e5 Ne4 6. Be2 Nc6 7. d3 Nxc3 8. bxc3 g5 9. O-O Rg8 10. d4 g4
1912 Opatija – Round 8 – Von Freymann, Sergey – 0-1 – Nyholm, Gustav – G39 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Be2 g5 6. O-O Rg8 7. Ne1 Ng7 8. d4 d6 9. Nd3 Nc6 10. Nc3 dxe5
1919 It (Men) Utrecht NED – Round 5 – Spielmann, Rudolf – 0-1 – Bogoljubow, Efim – G8 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. e5 Ne4 6. Be2 g5 7. O-O Nc6 8. Bb5 a6 9. Bxc6+ bxc6 10. d3 Bc5+
1933 Ebensee – Round 3 – Prins, Lodewijk – 0-1 – Eliskases, Erich – G11 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. Nxd5 Nxd5 6. exd5 Qxd5 7. d4 Bg4 8. Bxf4 Nc6 9. c4 Qe4+ 10. Qe2 Bxf3
1942 Salzburg – Round 10 – Keres, Paul – 0-1 – Alekhine, Alexander – G27 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Qe2 Be7 6. d4 O-O 7. g4 fxg3 8. Nc3 d5 9. Bd2 Nc6 10. O-O-O Bg4
1944 La Plata Jockey Club – Round 5 – Rossetto, Hector – 1-0 – Rebizzo, Cayetano – G5 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Be2 Nc6 6. O-O g5 7. d4 d5 8. Nxg5 Qxg5 9. Bxh5 Rg8 10. g3 Bg4
1945 Moskou ch-URS – Round 1 – Bronstein, David I – 1-0 – Kan, Ilya A – G104 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 g5 6. h4 g4 7. Ng5 d5 8. exd6 Bxd6 9. Bc4 Ng3 10. Bxf7+ Kf8
1945 Tbilisi – Round 1 – Lolua, Luka – 1/2-1/2 – Petrosian, Tigran A. – G16 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. c4 c6 7. cxd5 cxd5 8. Bd3 g5 9. O-O Nc6 10. Nc3 Be6
1946 Pittsburgh Open – Round 1 – Byrne, Ray – 1-0 – Evans Lianda – G65 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. Be2 g6 7. O-O Bh6 8. Ne1 Ng7 9. Bxf4 Bxf4 10. Rxf4 Be6
1948 South Fallsburg ch-USA – Round 1 – Santasiere, Anthony – 1/2-1/2 – Steiner, Heinrich Jun. – G75 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. Be2 g6 7. O-O Bh6 8. Ne1 Ng7 9. Bxf4 Bxf4 10. Rxf4 Nc6
1950 Corr – Round 1 – Walther, Edgar – 0-1 – Garcia Winkler, Alejandro – G22 1. f4 e5 2. e4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. e5 Ne4 6. d4 g5 7. h4 Be7 8. hxg5 Bxg5 9. Bd3 Bf5 10. Ne2 Bg4
1950 FRG Ch Bad Pyrmont GER – Round 15 – Staudte, Hans-Hilmar – 0-1 – Bogoljubow, Efim – G45 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nd5 5. Bc4 Nb6 6. Bb3 d5 7. exd6 Bxd6 8. O-O O-O 9. d4 Bg4 10. c4 c5
1951 AUS Ch – Round 2 – Ozols, Karlis – 1-0 – Reintals, Karlis – G4 1. f4 e5 2. e4 exf4 3. Nf3 Nf6 4. Nc3 Nh5 5. Bc4 d6 6. d4 Be7 7. O-O O-O 8. Ne1 g6 9. Be2 Nf6 10. Bxf4 d5
1951 New York – Round 1 – Byrne, Ray – 1-0 – Guimard, Carlos E – G10 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. Be2 g5 7. Nxg5 Qxg5 8. Bxh5 Qh4+ 9. Kf1 Be6 10. Bf3 Nc6
1951 Staunton Memorial – Round 13 – Wade, Robert G – 0-1 – Alexander, Conol Hugh – G95 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Qe2 Be7 6. d4 O-O 7. g4 fxg3 8. Qg2 d6 9. hxg3 Bg4 10. Nh2 Nxg3
1951 Wertheim Memorial – Round 1 – Byrne, Robert E – 1-0 – Guimard, Carlos E – G6 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. Be2 g5 7. Nxg5 Qxg5 8. Bxh5 Qh4+ 9. Kf1 Be6 10. Bf3 Nc6
1952 JUG Ch – Round 9 – Fuderer, Andrija – 1/2-1/2 – Nedeljkovic, Srecko M – G56 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Ng4 5. h3 Nh6 6. d4 g5 7. h4 g4 8. Ng5 d6 9. Nc3 dxe5 10. dxe5 Qxd1+
1952 URS ch sf – Round 10 – Nei, Iivo – 1-0 – Bannik, Anatolij – G64 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Qe2 Be7 6. d4 O-O 7. g4 fxg3 8. Qg2 d6 9. hxg3 Bg4 10. Nh2 Qd7
1953 GER Ch 15th – Round 8 – Budrich, Edmund – 0-1 – Ahues, Carl – G18 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Qe2 Be7 6. d4 d5 7. exd6 Qxd6 8. Qb5+ Nc6 9. Qxh5 Nxd4 10. Nxd4 Qxd4
1953 Hastings ch-BCF – Round 10 – Horne, Dennis Morton – 1-0 – Mardle, Denis – G90 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. Be2 Be6 7. O-O g6 8. Ne1 Ng7 9. Bxf4 h5 10. Nf3 Be7
1955 Aberystwyth ch-BCF – Round 6 – Wade, Robert G – 1-0 – Haygarth, Michael J – G28 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Nc3 d5 6. Be2 g6 7. O-O Bg4 8. d4 Bg7 9. h3 Be6 10. Nh2 Ng3
1959 Alekhine Memorial – Round 9 – Lutikov, Anatoly S – 1/2-1/2 – Milev, Zdravko – G49 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Be2 g5 6. O-O Rg8 7. d4 d5 8. c4 c6 9. Nc3 Be6 10. Qc2 Rg6
1959 York ch-BCF – Round 4 – Milner Barry, Philip – 0-1 – Haygarth, Michael J – G55 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. Nxd5 Nxd5 6. exd5 Be7 7. Be2 Bh4+ 8. Kf1 O-O 9. d4 Bf6 10. Bxf4 Bf5
1960 GBR Ch 47th – Round 8.3 – Alexander, Conol Hugh – 1/2-1/2 – Haygarth, Michael John – G67 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d6 6. Nc3 Be7 7. Be2 Bg4 8. O-O O-O 9. Nd5 Nc6 10. c3 dxe5
1960 Leningrad tt – Round 6 – Gheorghiu, Florin – 1-0 – Eriksson, Henrik – G83 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 h6 6. Be2 g5 7. c4 d6 8. O-O Bf5 9. Re1 Ng7 10. Bd3 Be7
1964 Kecskemet zt – Round 1 – Bhend, Edwin – 1/2-1/2 – Pachman, Ludek – G61 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d5 6. Be2 Bg4 7. O-O Nc6 8. c3 g6 9. Ne1 Bxe2 10. Qxe2 Qe7
1965 Corr EU M – Round ? – Briem, Stefan – 0-1 – Schrancz, Istvan – G9 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d6 6. Qe2 d5 7. g3 fxg3 8. Ng5 g6 9. Qf3 f6 10. hxg3 fxg5
1966 Panamerican – Round ? – Santa Cruz Beneito, Hugo – 1/2-1/2 – Alvarez del Monte, Jose – G88 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Bc4 d5 6. Bb3 g5 7. O-O c5 8. Nc3 Be6 9. d4 Nc6 10. dxc5 Bxc5+
1968 Churchill Memorial Open 16th – Round 5 – Michael John Basman – 1-0 – Griffiths, Peter C – G11 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Qe2 Be7 6. d4 O-O 7. Nc3 d6 8. Bd2 dxe5 9. dxe5 Bh4+ 10. g3 fxg3
9. Norway Armageddon 2021 – Round 2.2 – Nepomniachtchi, Ian – 1-0 – Firouzja, Alireza – G3 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d6 6. Qe2 dxe5 7. Nxe5 Qh4+ 8. g3 Nxg3 9. hxg3 Qxh1 10. Bxf4 Be6
World Blitz 2021 – Round 5.8 – Nepomniachtchi, Ian – 1-0 – Sanal, Vahap – G317 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. d4 d6 6. Nc3 dxe5 7. Bb5+ c6 8. Bc4 Be6 9. Bxe6 fxe6 10. O-O g6

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