Archives des C57a - 4.Ng5 - Two Knights: [+0.08]

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C57a — Two Knights:

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5

Eval: [+0.08]

Les coups candidats

Ambassadeurs : Krueger, Hilmar (77x), Cvak, Rudolf (70x), Tanti, Joseph G (68x), Lyell, Mark (44x), Grott, Peter (39x), ? (31x), Kahl, Fred (31x), Leisebein, Peter (30x)

4…Bc5 — 13.1% (3413 parties) →

Ambassadeurs : Leisebein, Peter (80x), Malmstroem, Jan Hendrik (36x), Blankenberg, Bruno (34x), Cvak, Rudolf (31x), Ottenweller, Wolfgang (30x), Horak, Jiri (27x), Marcotulli, Giancarlo (23x), Hanison, Bernard (22x)

4…Qe7 — 1.8% (481 parties)

Ambassadeurs : Johnson, Aaron (3x), Schunder, Tina (3x), Kis Kos Laszlo (3x), Le Chequer, Anthony (2x), Cervinka, Michal (2x), Tyrychtr, M (2x), Kus, Maciej (2x), Nemes, Silviu-Virgil (2x)

4…Nxe4 — 0.4% (117 parties)

Ambassadeurs : Feng, Jason (6x), Steinitz, Wilhelm (4x), Ajeeb (2x), Agolor Blessing Divine (2x), Maric, Rudolf (2x), Wall, Bill (2x), Lang, Fabian (2x), Afonin, Sergey (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	4…d5	4…Bc5	4…Qe7	4…Nxe4
<1800	1565	79%	19%	1%	0%
1800-2200	8018	86%	13%	0%	0%
2200-2600	4664	94%	6%	0%	0%
2600+	192	98%	2%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	4…d5	4…Bc5	4…Qe7	4…Nxe4
1590s	1	100%	—	—	—
1610s	2	100%	—	—	—
1620s	1	100%	—	—	—
1830s	4	100%	—	—	—
1840s	5	100%	—	—	—
1850s	33	100%	—	—	—
1860s	38	95%	—	—	3%
1870s	20	95%	—	—	5%
1880s	42	95%	—	—	5%
1890s	49	92%	4%	—	4%
1900s	39	97%	—	—	3%
1910s	34	100%	—	—	—
1920s	45	98%	—	—	2%
1930s	43	91%	9%	—	—
1940s	146	94%	4%	—	2%
1950s	257	83%	16%	—	0%
1960s	400	76%	23%	0%	1%
1970s	587	70%	30%	0%	0%
1980s	1004	72%	26%	1%	0%
1990s	4579	80%	15%	3%	0%
2000s	8806	80%	15%	3%	0%
2010s	7649	90%	8%	1%	0%
2020s	2320	92%	6%	1%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
4…d5	90%	92%	▲ +2.1%
4…Bc5	8%	6%	▼ -2.1%
4…Qe7	1%	1%	-0.3%
4…Nxe4	0%	1%	+0.3%

Joueurs célèbres

Champions du monde dans cette position

Steinitz, Wilhelm — 10 parties
Lasker, Emanuel — 10 parties
Carlsen, Magnus — 5 parties
Euwe, Max — 4 parties
Tal, Mikhail — 4 parties
Anand, Viswanathan — 3 parties
Smyslov, Vladimir — 2 parties
Karpov, Anatoly — 2 parties
Kasparov, Garry — 2 parties
Ding, Liren — 2 parties
Alekhine, Alexander — 1 partie
Botvinnik, Mikhail — 1 partie
Fischer, Robert James — 1 partie
Gukesh D — 1 partie
Ju, Wenjun — 1 partie

Parties historiques

4…d5 — 83.4% (21776 parties)

1590 — Polerio, D. vs De Domenico, Giulia Nicole — 1-0 — Rome 1590
1610 — Polerio, Giulio Cesare vs De Domenico, Giulia Nicole — 1-0 — Rome ITA
1610 — Polerio, Giulio Cesare vs D'Arminio, Domenico — 1-0 — Rome ITA
1620 — Greco, Gioacchino vs ? — 1-0 — Europe
1835 — Wayte, William vs Williams, Elijah J — 0-1 — England

4…Bc5 — 13.1% (3413 parties)

1890 — Reinisch, Joerg vs Traxler, Karel — 0-1 — Prague CZE
1896 — Mikista vs Traxler, Dominik — 0-1 — cr.
1937 — MacMurray, D. vs Kussman, A. — 0-1 — ?
1937 — Murrau, Adela vs Kustmann — 0-1 — ?
1937 — Mcmurray, Castiel vs Kussman — 0-1 — ?

4…Qe7 — 1.8% (481 parties)

1967 — Berry, Jonathan vs Kershaw, Ian — 1-0 — Vancouver BC CAN
1978 — Spaete, Erwin vs Scheffner, HG. — 0-1 — Hohenlimburg
1981 — Hill, David F vs Potter, Leo — 1-0 — Dayton, OH USA
1982 — Van Gool, Rudi vs Van der Meij, J — 1-0 — Venlo
1987 — Maipambe Patrick Jr vs Vann, Monica S — 0-1 — Slough

4…Nxe4 — 0.4% (117 parties)

1862 — Steinitz, Wilhelm vs Gomez Wilson, Julio Eduardo — 1-0 — London ENG
1874 — Plunkett, HC. vs Steinitz, Wilhelm — 1-0 — Oxford ENG
1881 — J D Roberts C Tuthill vs Steinitz, Wilhelm — 0-1 — Dublin IRL
1885 — William C. Paine vs Steinitz, Wilhelm — 0-1 — Boston, MA USA (Boston CC)
1890 — Ajeeb vs Agolor Blessing Divine — 0-1 — New York, NY USA

Partie
1967 West Vancouver CC – Round 1 – Berry, Jonathan – 1-0 – Kershaw, Ian – G1 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Qe7 5. Bxf7+ Kd8 6. Bc4 d5 7. exd5 Nxd5 8. d3 Qd7 9. Qf3 Nce7 10. Nf7+ Ke8

1967 West Vancouver CC – Round 1 – Berry, Jonathan – 1-0 – Kershaw, Ian – G1