A05h — KIA Spassky
1.Nf3 Nf6 2.g3 b5
Eval: [+0.28]
Les coups candidats
Ambassadeurs : Romanishin, Oleg M (22x), Seeman, Tarvo (22x), Palladino, Mario (18x), Hauser, Jack (17x), Glauser, Paul (16x), Gutman, Lev (14x), Arkell, Keith C (14x), Kratochvíl, Jan (13x)
3.a4 — 3.1% (162 parties)
Ambassadeurs : Rubinetti, Jorge (3x), Makarichev, Sergey (3x), Veingold, Aleksandr (3x), Yoffie, Marc (2x), Alexopoulos, Georgios 94 (2x), Biyiasas, Peter (2x), Hebert, Jean (2x), Summerscale, Aaron P (2x)
3.Na3 — 2.9% (147 parties)
Ambassadeurs : Loginov, Valery A (6x), AlHuwar, Jasem (6x), Zaragatski, Ilja (5x), Hartoch, Robert G (3x), Fominyh, Alexander (3x), Seeman, Tarvo (3x), Galperin, Platon (3x), Darcyl, Tomas (2x)
Ambassadeurs : Aannevik, Bjarne (4x), Lomer, Edmund (2x), Svane, Rasmus (2x), Griffiths, Deacon (1x), Fazekas, Stephan (1x), Grandinger, Stefan (1x), Riediger, Martin (1x), Vassiades, Constantinos (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 3.Bg2 3.a4 3.Na3 3.d4
<1800 76 95% 1% 1% 1%
1800-2200 1407 89% 3% 2% 2%
2200-2600 3058 86% 3% 4% 1%
2600+ 126 76% 10% 2%
Évolution par décennie (% des parties)
Décennie N parties 3.Bg2 3.a4 3.Na3 3.d4
1930s 1 100%
1940s 3 67% 33%
1950s 12 92% 8%
1960s 56 91% 5%
1970s 215 83% 7% 0% 1%
1980s 293 87% 7% 1% 0%
1990s 707 89% 4% 2% 1%
2000s 1024 88% 3% 2% 2%
2010s 1986 88% 2% 3% 2%
2020s 853 84% 2% 5% 2%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
3.Bg2 88% 84% ▼ -4.1%
3.a4 2% 2% -0.4%
3.Na3 3% 5% ▲ +1.5%
3.d4 2% 2% -0.1%
Joueurs célèbres
Champions du monde dans cette position
Smyslov, Vladimir — 4 parties
Karpov, Anatoly — 4 parties
Gukesh D — 4 parties
Carlsen, Magnus — 3 parties
Kramnik, Vladimir — 3 parties
Tal, Mikhail — 2 parties
Karpov, Aleksandr — 2 parties
Ju, Wenjun — 2 parties
Euwe, Max — 1 partie
Anand, Viswanathan — 1 partie
Ding, Liren — 1 partie
Hou, Yifan — 1 partie
Parties historiques
3.Bg2 — 87.1% (4488 parties)
1931 — Santasiere, Anthony vs Steiner, Herman — 1-0 — New York, NY USA
1946 — Barcza, Gedeon vs Füster, Géza — 1-0 — Budapest HUN
1948 — Lokvenc, Josef vs Abrahams, Gerald — 1-0 — Bad Gastein
1950 — Euwe, Max vs Gudmundsson, Gardar Vidir — 1/2-1/2 — Amsterdam NED
1954 — Gufeld, Eduard vs Matskevich, Avshalom — 0-1 — Kiev UKR
3.a4 — 3.1% (162 parties)
1944 — Iliesco, Juan vs Stahlberg, Gideon — 0-1 — Mar del Plata ARG
1965 — Gereben, Erno vs Balashov, Yuri — 1-0 — Beverwijk NED
1966 — Petrosian, Tigran V. vs Spassky, Boris V. — 1/2-1/2 — Moskou wch-m
1968 — Havansi, Erkki E.T. vs Rubinetti, Jorge — 1/2-1/2 — Lugano olm
1970 — Rubinetti, Jorge vs Polugaevsky, Lev — 1/2-1/2 — Palma de Mallorca izt
3.Na3 — 2.9% (147 parties)
1975 — Soltis, Andrew vs Boskovic, Malina — 0-1 — USA
1987 — Darcyl, Tomas vs Biagi, Eduardo — 1/2-1/2 — Buenos Aires ARG
1988 — Hickl, Joerg vs Gruenfeld, Yehuda — 1/2-1/2 — Tel Aviv ISR
1990 — Galliamova, Alisa vs Cooper, Lawrence H — 1-0 — Oakham ENG
1991 — Darcyl, Tomas vs Negri, Sergio — 0-1 — Buenos Aires ARG
3.d4 — 1.7% (88 parties)
1954 — Griffiths, Deacon vs Fazekas, Stephan — 0-1 — Nottingham ch-BCF
1971 — Vassiades, Constantinos vs Leow, Leslie M — 0-1 — Athens GRE
1974 — Enklaar, Bert vs Hecht, Hans-Joachim — 0-1 — Wijk aan Zee NED
1987 — Grandinger, Stefan vs Riediger, Martin — 0-1 — Bad Aibling GER
1990 — Bencze, Laszlo Dr vs Oltean, Dorel — 0-1 — Eger op