Calvin Nicholas Jacobs's chess openings
🇿🇦 South AfricaFIDE 215639 games
Calvin Nicholas Jacobs, from South Africa, has 39 tournament games in the ChessPrep database. As White, Calvin Nicholas Jacobs most often opens with 1.e4 (81% of games). As Black, against 1.e4 the usual reply is 1...c5, the Sicilian Defense; against 1.d4 it is 1...f5.
As White21 games · +9 =6 −6 · 57%
As Black18 games · +8 =3 −7 · 53%
As White
- 1.e4 King's Pawn Opening81%17 games · scores 53% · main line 1.e4 c5 2.d4 cxd4 3.c3 dxc3
- 1.b3 Nimzo-Larsen Attack19%4 games · scores 75% · main line 1.b3 d5 2.Bb2 Bf5 3.e3 Nf6
As Black against 1.e4
- 1...c5 Sicilian Defense100%12 games · scores 42% · main line 1.e4 c5 2.Nf3 e6 3.d4 cxd4
As Black against 1.d4
- 1...f5 Dutch Defense80%4 games · scores 75% · main line 1.d4 f5 2.c4 Nf6 3.g3 g6
- 1...d5 Closed Game20%1 game · scores 100% · main line 1.d4 d5 2.c4 e6 3.Nf3 c5
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