Oystein Boyum Fossum's chess openings
FM🇳🇴 NorwayFIDE 2310149 games
Oystein Boyum Fossum, FIDE Master from Norway, has 149 tournament games in the ChessPrep database. As White, Oystein Boyum Fossum most often opens with 1.Nf3 (46% of games). As Black, against 1.e4 the usual reply is 1...c5, the Sicilian Defense; against 1.d4 it is 1...e6.
As White78 games · +27 =25 −26 · 51%
As Black71 games · +31 =18 −22 · 56%
As White
- 1.Nf3 Réti Opening46%36 games · scores 51% · main line 1.Nf3 d5 2.c4 d4 3.e3 Nc6
- 1.c4 English Opening37%29 games · scores 55% · main line 1.c4 Nf6 2.g3 g6 3.Bg2 Bg7
- 1.e4 King's Pawn Opening14%11 games · scores 41% · main line 1.e4 c5 2.Nf3 e6 3.d4 cxd4
As Black against 1.e4
- 1...c5 Sicilian Defense62%24 games · scores 42% · main line 1.e4 c5 2.Nf3 g6 3.d4 cxd4
- 1...e6 French Defense33%13 games · scores 46% · main line 1.e4 e6 2.d4 d5 3.Nc3 Nf6
- 1...Nf6 Alekhine's Defense3%1 game · scores 0% · main line 1.e4 Nf6 2.e5 Nd5 3.d4 d6
As Black against 1.d4
- 1...e6 Horwitz Defense50%11 games · scores 73% · main line 1.d4 e6 2.c4 f5 3.g3 Nf6
- 1...d5 Closed Game18%4 games · scores 75% · main line 1.d4 d5 2.c4 e6 3.Nf3 c5
- 1...Nf6 Indian Defense18%4 games · scores 63% · main line 1.d4 Nf6 2.Nf3 e6 3.c4 c5
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