Ernst Jacobson's chess openings
🇸🇪 SwedenFIDE 211326 games
Ernst Jacobson, from Sweden, has 26 tournament games in the ChessPrep database. As White, Ernst Jacobson most often opens with 1.e4 (86% of games). As Black, against 1.e4 the usual reply is 1...e5, the Open Game; against 1.d4 it is 1...Nf6.
As White14 games · +7 =1 −6 · 54%
As Black12 games · +2 =6 −4 · 42%
As White
- 1.e4 King's Pawn Opening86%12 games · scores 54% · main line 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5
- 1.d4 Queen's Pawn Opening14%2 games · scores 50% · main line 1.d4 Nf6 2.c4 e6 3.Nf3 b6
As Black against 1.e4
- 1...e5 Open Game86%6 games · scores 42% · main line 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
- 1...d5 Scandinavian Defense14%1 game · scores 100% · main line 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5
As Black against 1.d4
- 1...Nf6 Indian Defense40%2 games · scores 50% · main line 1.d4 Nf6 2.Nf3 e6 3.Bf4 d5
- 1...d5 Closed Game40%2 games · scores 25% · main line 1.d4 d5 2.c4 e6 3.Nc3 Nf6
- 1...g6 Modern Defense20%1 game · scores 0% · main line 1.d4 g6 2.e4 Bg7 3.Be3 d6
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