Avatar of Harmen Jonkman

Harmen Jonkman GM

CheckBits Since 2022 (Inactive) Chess.com
58.7%- 37.5%- 3.8%
Bullet 2331
588W 317L 27D
Blitz 2415
100W 110L 17D
Rapid 2173
6W 16L 1D

Openings: Most Played

Piece
Time Control
Blitz Opening Games Record Win Rate
London System: Poisoned Pawn Variation 21 7 / 11 / 3 33.3%
Döry Defense 16 10 / 6 / 0 62.5%
Sicilian Defense: Alapin Variation 13 6 / 6 / 1 46.1%
Blackburne Shilling Gambit 11 6 / 4 / 1 54.5%
French Defense: Advance Variation 9 3 / 4 / 2 33.3%
Amazon Attack: Siberian Attack 7 4 / 2 / 1 57.1%
Amazon Attack 5 1 / 4 / 0 20.0%
Caro-Kann Defense 5 1 / 4 / 0 20.0%
Modern 5 4 / 1 / 0 80.0%
QGA: Classical, 6...a6 7.a3 5 1 / 3 / 1 20.0%
Bullet Opening Games Record Win Rate
Amar Gambit 124 78 / 40 / 6 62.9%
French Defense 49 36 / 12 / 1 73.5%
Colle System: Rhamphorhynchus Variation 41 28 / 11 / 2 68.3%
London System: Poisoned Pawn Variation 32 18 / 14 / 0 56.2%
French Defense: Exchange Variation 30 22 / 8 / 0 73.3%
Hungarian Opening: Wiedenhagen-Beta Gambit 30 17 / 10 / 3 56.7%
Döry Defense 27 18 / 8 / 1 66.7%
Barnes Defense 27 18 / 9 / 0 66.7%
Sicilian Defense: Alapin Variation 24 13 / 10 / 1 54.2%
Australian Defense 20 12 / 8 / 0 60.0%
Rapid Opening Games Record Win Rate
Ruy Lopez: Berlin Defense, Berlin Wall 3 0 / 3 / 0 0.0%
QGA: Classical, 6...a6 7.a3 2 0 / 2 / 0 0.0%
Sicilian Defense: Alapin Variation 2 1 / 1 / 0 50.0%
East Indian Defense 2 1 / 1 / 0 50.0%
Bogo-Indian Defense 2 0 / 2 / 0 0.0%
London System: Poisoned Pawn Variation 2 0 / 2 / 0 0.0%
Australian Defense 1 1 / 0 / 0 100.0%
Czech Defense 1 0 / 1 / 0 0.0%
Amazon Attack: Siberian Attack 1 1 / 0 / 0 100.0%
Barnes Defense 1 0 / 1 / 0 0.0%
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