Sergey Ionov's chess openings
GM🇷🇺 RussiaFIDE 2502743 games
Sergey Ionov, Grandmaster from Russia, has 743 tournament games in the ChessPrep database. As White, Sergey Ionov most often opens with 1.d4 (67% of games). As Black, against 1.e4 the usual reply is 1...c5, the Sicilian Defense; against 1.d4 it is 1...Nf6.
As White353 games · +132 =171 −50 · 62%
As Black390 games · +116 =199 −75 · 55%
As White
- 1.d4 Queen's Pawn Opening67%236 games · scores 61% · main line 1.d4 Nf6 2.c4 e6 3.Nf3 b6
- 1.Nf3 Réti Opening15%54 games · scores 69% · main line 1.Nf3 Nf6 2.c4 g6 3.g3 Bg7
- 1.c4 English Opening10%37 games · scores 55% · main line 1.c4 c6 2.e4 d5 3.exd5 cxd5
As Black against 1.e4
- 1...c5 Sicilian Defense76%129 games · scores 57% · main line 1.e4 c5 2.Nf3 d6 3.d4 cxd4
- 1...e5 Open Game9%16 games · scores 56% · main line 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6
- 1...e6 French Defense7%12 games · scores 46% · main line 1.e4 e6 2.d4 d5 3.Nd2 c5
As Black against 1.d4
- 1...Nf6 Indian Defense85%141 games · scores 56% · main line 1.d4 Nf6 2.c4 e6 3.Nf3 b6
- 1...d5 Closed Game12%19 games · scores 47% · main line 1.d4 d5 2.c4 c6 3.Nf3 Nf6
- 1...e6 Horwitz Defense2%4 games · scores 63% · main line 1.d4 e6 2.c4 f5 3.g3 Nf6
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