Player profile
Jan Boersma
Dossier
9 of 9 games analyzed.
Accuracy: 86.1%
Opened e4: 4/5Opened Nc3: 1/5
Castled kingside: 9Same-side castling: 6Opposite-side castling: 1
Fianchettoed kingside: 5Played on the kingside: 5Played on the queenside: 3Fianchettoed queenside: 2Played in the center: 1
Kept the bishop pair: 7Active pieces: 7Missed tactics: 6Isolated pawn: 6Initiated exchanges: 5Backward pawn: 3Space advantage: 2Accepted short draws: 2Sacrificed material: 2Avoided exchanges: 1
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 5 games 0W 2D 3L
Sicilian Defense 2 games 0W 1D 1L
Closed 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Caro-Kann Defense 2 games 0W 0D 2L
Accelerated Panov Attack 2 games 0W 0D 2L
Modern Variation
1 game
0W
0D
1L
(unspecified)
1 game
0W
0D
1L
Van Geet Opening 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
As Black 4 games 0W 3D 1L
Sicilian Defense 3 games 0W 2D 1L
Hyperaccelerated Dragon 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Accelerated Dragon 1 game 0W 1D 0L
Maróczy Bind
1 game
0W
1D
0L
Closed 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
King's Indian Defense 1 game 0W 1D 0L
Semi-Averbakh System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Blunders Top 4 of 41
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 9 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2023.08.03 | Round 9: Jan Boersma - John Raymond Markus | 2023.08.03 John Raymond Markus | ½ | 79.30% | 1. Nc3 g6 2. e4 d6 3. f4 Bg7 | ||
| 2023.08.02 | Round 8: Sascha Kurt - Jan Boersma | 2023.08.02 Sascha Kurt | 0 | 86.30% | 1. e4 c5 2. Nf3 g6 3. d4 cxd4 | ||
| 2023.08.01 | Round 7: Jan Boersma - Yu A. Hu | 2023.08.01 Yu A. Hu | 0 | 88.50% | 1. e4 c5 2. Nc3 d6 3. f4 Nc6 | ||
| 2023.07.31 | Round 6: Noah Ritzerveld - Jan Boersma | 2023.07.31 Noah Ritzerveld | ½ | 86.70% | 1. e4 c5 2. Nf3 g6 3. d4 cxd4 | ||
| 2023.07.29 | Round 5: Jan Boersma - Tom Bus | 2023.07.29 Tom Bus | ½ | 92.20% | 1. e4 c5 2. Nc3 a6 3. g3 b5 | ||
| 2023.07.28 | Round 4: William Shakhverdian - Jan Boersma | 2023.07.28 William Shakhverdian | ½ | 88.00% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | ||
| 2023.07.27 | Round 3: Jan Boersma - Tom De Jong | 2023.07.27 Tom De Jong | 0 | 93.70% | 1. e4 c6 2. c4 d5 3. cxd5 cxd5 | ||
| 2023.07.26 | Round 2: Thomas Kools - Jan Boersma | 2023.07.26 Thomas Kools | ½ | 94.20% | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 | ||
| 2023.07.25 | Round 1: Jan Boersma - Guus Bollen | 2023.07.25 Guus Bollen | 0 | 66.20% | 1. e4 c6 2. c4 d5 3. exd5 cxd5 |