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A21s — Kramnik-Shirov
1.c4 e5 2.Nc3 Bb4 3.Nd5 Bc5
Eval: [+0.41]
Les coups candidats
4.Nf3 — 40.7% (506 parties)
Ambassadeurs : Sokolov, Ivan (11x), McNab, Colin A (9x), Moiseenko, Alexander (9x), Volkov, Sergey (8x), Anand, Viswanathan (7x), Tomashevsky, Evgeny (6x), Morley, Paul (5x), Zielinski, Sergej (5x)
4.e3 — 39.7% (493 parties)
Ambassadeurs : Walton, John C. (6x), Grammatica, Andrea (6x), Sokolov, Ivan (4x), Reinderman, Dimitri (4x), Timman, Jan H (4x), Volkov, Sergey (4x), Montenegro Garcia, Marcos (3x), Filar, Slawomir (3x)
4.b4 — 14.4% (179 parties)
Ambassadeurs : Zhak, Boris (3x), Anand, Viswanathan (3x), Gurgenidze, Bukhuti (2x), Timman, Jan H (2x), Rausis, Igors (2x), Hoffmann, Hans (2x), Riff, Vincent (2x), Vysochin, Spartak (2x)
4.g3 — 2.2% (27 parties)
Ambassadeurs : Reisch, Stefan (2x), Fichte-Rath, Alina (2x), Mrkos, Miroslav (1x), Ptacnik, Stanislav (1x), Dam, Ruurd (1x), Mathonia, Claude (1x), Gottschlich, Carsten (1x), Domnick, Andreas (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 4.Nf3 4.e3 4.b4 4.g3
<1800 37 32% 38% 16% 8%
1800-2200 311 30% 44% 17% 4%
2200-2600 644 46% 39% 12% 1%
2600+ 104 56% 34% 11%
Évolution par décennie (% des parties)
Décennie N parties 4.Nf3 4.e3 4.b4 4.g3
1960s 2 50%
1970s 2 100%
1980s 16 38% 44% 12%
1990s 154 27% 40% 25% 3%
2000s 215 35% 37% 18% 4%
2010s 613 49% 35% 12% 2%
2020s 241 34% 54% 10% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
4.Nf3 49% 34% ▼ -14.9%
4.e3 35% 54% ▲ +19.0%
4.b4 12% 10% ▼ -2.1%
4.g3 2% 1% ▼ -1.1%
Joueurs célèbres
Champions du monde dans cette position
Anand, Viswanathan — 10 parties
Carlsen, Magnus — 3 parties
Kramnik, Vladimir — 2 parties
Ju, Wenjun — 2 parties
Parties historiques
4.Nf3 — 40.7% (506 parties)
1980 — Ionov, Sergey vs Zhelnin, Vladimir V — 1-0 — Jurmala LAT
1981 — Piasetski, Leon vs Hebert Auby, Jean — 0-1 — Montreal CAN
1985 — Adorjan, Andras vs Stoica, Valentin — 1/2-1/2 — Lucerne SUI
1985 — Adorjan, Andras vs Timman, Jan H — 1/2-1/2 — Linares ESP
1987 — Chernin, Alexander vs Psakhis, Lev — 1/2-1/2 — Moscow RUS
4.e3 — 39.7% (493 parties)
1965 — Shipov, Boris vs Liu, Wenzhe — 0-1 — Shanghai CHN
1980 — Suba, Mihai vs Knezevic, Milorad — 1/2-1/2 — Erevan ARM
1985 — Smejkal, Jan vs Timman, Jan H — 1/2-1/2 — Zagreb CRO
1985 — Smejkal, Jakub vs Timman, Jan H — 1/2-1/2 — Zagreb / Rijeka
1987 — Backe, Peter vs Bech Johansson, Amadeus — 1-0 — Solna
4.b4 — 14.4% (179 parties)
1976 — Katalymov, Boris vs Gurgenidze, Bukhuti — 1-0 — Rostov RUS
1976 — Katalimov, B vs Gurgenidze, Bukhuti — 1-0 — Rostov on Don
1986 — Gross, Klaus-Juergen vs Lau, Ralf — 0-1 — Duitsland tt
1987 — Goonetilleke, L C vs Finegold, Benjamin — 0-1 — Midwest Masters Inv
1990 — Jolles, Hajo vs Van der Weij, Anton — 0-1 — Dieren open
4.g3 — 2.2% (27 parties)
1992 — Dam, Ruurd vs Mathonia, Claude — 0-1 — Groningen open
1994 — Gottschlich, Carsten vs Domnick, Andreas — 1-0 — DLM Binz
1997 — Mrkos, Miroslav vs Ptacnik, Stanislav — 1/2-1/2 — Czechia
1997 — Seuffert, Gabriel, Dr. vs Reisch, Stefan — 1/2-1/2 — Wuerzburg
2000 — Trautmann, Johannes vs Reisch, Stefan — 1-0 — GER