Harmen Jonkman's chess openings
GM🇳🇱 NetherlandsFIDE 22791,281 games
Harmen Jonkman, Grandmaster from Netherlands, has 1,281 tournament games in the ChessPrep database. As White, Harmen Jonkman most often opens with 1.e4 (91% of games). As Black, against 1.e4 the usual reply is 1...e5, the Open Game; against 1.d4 it is 1...d5.
As White684 games · +301 =161 −222 · 56%
As Black597 games · +224 =133 −240 · 49%
As White
- 1.e4 King's Pawn Opening91%620 games · scores 56% · main line 1.e4 e6 2.d4 d5 3.e5 c5
- 1.d4 Queen's Pawn Opening9%61 games · scores 52% · main line 1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7
- 1.Nf3 Réti Opening0%2 games · scores 50% · main line 1.Nf3 d5 2.g3 Nf6 3.Bg2 Bf5
As Black against 1.e4
- 1...e5 Open Game96%282 games · scores 51% · main line 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6
- 1...e6 French Defense3%8 games · scores 56% · main line 1.e4 e6 2.d4 d5 3.exd5 exd5
- 1...Nf6 Alekhine's Defense1%2 games · scores 0% · main line 1.e4 Nf6 2.e5 Nd5 3.c4 Nb6
As Black against 1.d4
- 1...d5 Closed Game82%127 games · scores 54% · main line 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6
- 1...Nf6 Indian Defense11%17 games · scores 41% · main line 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+
- 1...e6 Horwitz Defense6%9 games · scores 44% · main line 1.d4 e6 2.e4 d5 3.exd5 exd5
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