C90c - 9.a3 - Closed Suetin Variation

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C90c — Closed Suetin Variation
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.a3
Eval: [+0.12]
Les coups candidats
9…Na5 — 36.7% (102 parties)
Ambassadeurs : Loskutov, Oleg (7x), ? (6x), Suetin, Alexey S (6x), Nijboer, Friso (4x), Galdunts, Sergey (3x), German, Eugenio (2x), Shilov, Sergej (2x), Ivkov, Borislav (2x)
9…Be6 — 14.4% (40 parties)
Ambassadeurs : Suetin, Alexey S (6x), ? (3x), Keres, Paul (2x), Sanakoev, Grigory Konstant'ch (2x), Ivanchuk, Vasyl (2x), Nijboer, Friso (2x), Azaric, Slavko (2x), Melkumyan, Hrant (2x)
9…h6 — 9.7% (27 parties)
Ambassadeurs : Suetin, Alexey S (7x), Bronstein, David I (2x), Ivkov, Borislav (2x), Geller, Efim P. (2x), Muhutdinov, Marat (2x), Kharlov, Andrei (2x), Grischuk, Alexander (2x), Nielsen, Jorgen G. (1x)
9…Nb8 — 8.6% (24 parties)
Ambassadeurs : Loskutov, Oleg (2x), Cobb, James (2x), Gheorghiu, Florin (1x), Padevsky, Nikola (1x), Spassky, Boris V. (1x), Unzicker, Wolfgang (1x), Psakhis, Lev (1x), Uusi, Gunnar (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 9…Na5 9…Be6 9…h6 9…Nb8
<1800 5 100% — — —
1800-2200 37 38% 11% 8% 5%
2200-2600 150 35% 12% 11% 13%
2600+ 18 22% 39% 6% 6%
Évolution par décennie (% des parties)
Décennie N parties 9…Na5 9…Be6 9…h6 9…Nb8
1960s 28 25% 25% 18% 4%
1970s 16 19% 25% 6% 6%
1980s 34 35% 9% 12% 6%
1990s 51 35% 10% 12% 6%
2000s 79 41% 16% 9% 10%
2010s 65 43% 12% 6% 14%
2020s 5 40% — — —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
9…Na5 43% 40% ▼ -3.1%
9…Be6 12% 0% ▼ -12.3%
9…h6 6% 0% ▼ -6.2%
9…Nb8 14% 0% ▼ -13.8%
Joueurs célèbres
Champions du monde dans cette position
Carlsen, Magnus — 2 parties
Hou, Yifan — 1 partie
Ding, Liren — 1 partie
Parties historiques
9…Na5 — 36.7% (102 parties)
1965 — ? vs Gligorić, Svetozar — 1-0 — Titograd
1965 — Suetin, Alexey S vs Lengyel, Laszlo — 1-0 — Sarajevo BIH
1966 — ? vs Milic, Borislav — 1/2-1/2 — Belgrade SRB
1967 — Tikhomirov, Leonard vs Manteifel, Georgy — 1/2-1/2 — ?
1968 — German, Eugenio vs Clarke, Paul R H — 1/2-1/2 — Lugano olm
9…Be6 — 14.4% (40 parties)
1965 — Suetin, Alexey S vs Stein, Leon Rico — 1/2-1/2 — Tallinn ch-URS
1965 — Suetin, Alexey S vs Keres, Paul — 0-1 — Tallinn ch-URS
1965 — Suetin, Alexey S vs Keres, Paul — 0-1 — URS-ch Tallinn
1966 — Maric, Rudolf vs ? — 1/2-1/2 — Sombor
1968 — Nathan, Roger H vs Meakin, M — 1-0 — Swansea WLS
9…h6 — 9.7% (27 parties)
1965 — Suetin, Alexey S vs Nielsen, Jorgen G. — 1-0 — It, Copenhagen DEN
1965 — Suetin, Alexey S vs Nielsen, Jorgen Lovgren — 1-0 — Copenhagen DEN
1968 — Bronstein, David I vs Ivkov, Borislav — 1/2-1/2 — Sochi RUS
1968 — Ciocaltea, Victor vs Dunkelblum, Arthur — 1-0 — Wijk aan Zee II
1968 — Bronstein, David I vs Ivkov, Borislav — 1/2-1/2 — Sochi RUS
9…Nb8 — 8.6% (24 parties)
1964 — Gheorghiu, Florin vs Padevsky, Nikola — 1/2-1/2 — Tel Aviv ISR
1970 — Spassky, Boris V. vs Unzicker, Wolfgang — 1/2-1/2 — Siegen GER
1980 — Psakhis, Lev vs Uusi, Gunnar — 1-0 — Krasnojarsk
1981 — Benjamin Bedell, Jr. vs Reshevsky, Samuel — 0-1 — South Bend ch-USA - zt
1992 — Jonsson, Mikael vs Ornstein, Axel — 1/2-1/2 — Borlange SWE