C84d - 8.Nd5 - Spanish: Closed (1900)

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C84d — Spanish: Closed (1900)
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Nc3 b5 7.Bb3 d6 8.Nd5
Les coups candidats
8…Na5 — 65.1% (246 parties)
Ambassadeurs : Bernal Varela, Nelson (7x), Janisch, Manfred (6x), Penrose, Jonathan (5x), Ciocaltea, Victor (4x), Allen, Conroy (4x), Kushagra Mohan (4x), Richter, Wolfgang (4x), Keres, Paul Petrovich (3x)
8…O-O — 11.9% (45 parties)
Ambassadeurs : Penrose, Jonathan (2x), Tompa, Janos (2x), Radovici, Corvin (2x), Ciocaltea, Victor (2x), Keres, Paul Petrovich (2x), Kara, Neman (1x), Westerinen, Heikki M.J. (1x), Benko, Francisco (1x)
8…Bb7 — 10.3% (39 parties)
Ambassadeurs : Keres, Paul Petrovich (5x), Keres, Paul (3x), Nei, Iivo (2x), Spassky, Boris Vasily (2x), Gligoric, Sofija (2x), Balogh, Janos (2x), Fichtl, Jiri (1x), Kozma, Julius (1x)
8…Nxe4 — 8.7% (33 parties)
Ambassadeurs : Jablonski, Jerzy (2x), Warman, Simon M (2x), Recalde, Eleuterio (1x), Letzelter, Jean-Claude (1x), Landbo (1x), Tucek, Jan (1x), Kamensky, Vitaly (1x), Novikov, Yuri A. (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…Na5 8…O-O 8…Bb7 8…Nxe4
<1800 26 65% 12% 4% 19%
1800-2200 113 75% 12% 4% 5%
2200-2600 96 72% 11% 6% 6%
2600+ 4 50% 50% — —
Évolution par décennie (% des parties)
Décennie N parties 8…Na5 8…O-O 8…Bb7 8…Nxe4
1950s 44 61% 16% 18% 5%
1960s 54 44% 13% 26% 9%
1970s 20 55% 15% 20% —
1980s 18 67% 17% 6% 11%
1990s 25 64% 8% 8% 12%
2000s 52 56% 15% 12% 15%
2010s 147 78% 9% 3% 7%
2020s 18 72% 11% — 11%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…Na5 78% 72% ▼ -5.3%
8…O-O 9% 11% ▲ +2.3%
8…Bb7 3% 0% ▼ -2.7%
8…Nxe4 7% 11% ▲ +3.6%
Parties historiques
8…Na5 — 65.1% (246 parties)
1951 — Harrell, Bruce B vs Baron, Scudierr — 0-1 — Fort Worth, TX USA
1952 — Penrose, Jonathan vs Bolbochan, Julio — 1/2-1/2 — Helsinki olm
1952 — Sarapu, Ortvin vs Purdy, Cecil J S — 1-0 — ?
1952 — Enevoldsen, Jens vs Doerner, Charles — 1-0 — Helsinki olm
1953 — Penrose, Jonathan vs McCleod, N.A — 1-0 — Glasgow SCO
8…O-O — 11.9% (45 parties)
1950 — Penrose, Jonathan vs Kara, Neman — 1-0 — Southsea
1951 — Harrell, Bruce B vs Hartleb, Glenn E — 1/2-1/2 — Fort Worth, TX USA
1951 — Penrose, Jonathan vs Broadbent, Reginald — 0-1 — Swansea WLS
1957 — Keres, Paul Petrovich vs Anay Barche — 0-1 — EST-HUN Tallinn EST
1958 — Benko, Francisco vs Bartis, Gustavo — 1/2-1/2 — Buenos Aires METRO
8…Bb7 — 10.3% (39 parties)
1957 — G.k.p., Rubel vs Furman, Semyon — 0-1 — Leningrad RUS
1958 — Geller, Efim P. vs Keres, Paul Petrovich — 1/2-1/2 — Vilnius LTU
1958 — Darga, Klaus vs Dittmann, Sieghart — 1/2-1/2 — Munich GER
1958 — Keres, Paul Petrovich vs Gligorić, Svetozar — 1/2-1/2 — Zagreb CRO
1958 — Keres, Paul vs Gligoric, Sofija — 1-0 — Zagreb CRO
8…Nxe4 — 8.7% (33 parties)
1956 — Aadhitha Karikalan vs Keres, Paul — 0-1 — Belgrade SRB
1957 — Kamensky, Vitaly vs Novikov, Yuri A. — 1-0 — ?
1964 — Jablonski, Jerzy vs Tucek, Jan — 1-0 — EU-ch GT5 corr
1964 — Asher Kahi vs Reissmann, Paul — 1-0 — Tel Aviv ISR
1965 — Jablonski, Jerzy vs Landbo — 0-1 — corr Baltic