Player profile
Chiel Koster
Dossier
8 of 8 games analyzed.
Accuracy: 88.6%
Opened e4: 3/4Opened b4: 1/4
Castled kingside: 8Same-side castling: 7
Played in the center: 5Fianchettoed kingside: 1Played on the kingside: 1Fianchettoed queenside: 1Played on the queenside: 1
Kept the bishop pair: 6Initiated exchanges: 5Missed tactics: 5Backward pawn: 4Space advantage: 4Sacrificed material: 4Active pieces: 2Isolated pawn: 2Avoided exchanges: 2Played gambits: 1
Openings
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As White 4 games 1W 0D 3L
Bishop's Opening 1 game 0W 0D 1L
Paulsen Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Sicilian Defense 1 game 1W 0D 0L
Four Knights Variation 1 game 1W 0D 0L
Cobra Variation
1 game
1W
0D
0L
Polish Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
As Black 4 games 1W 1D 2L
Sicilian Defense 2 games 0W 1D 1L
Grand Prix Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Mengarini Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
English Opening 1 game 0W 0D 1L
Symmetrical Variation 1 game 0W 0D 1L
Botvinnik System Reversed, with Nf3
1 game
0W
0D
1L
Catalan Opening 1 game 1W 0D 0L
Open Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Blunders Top 4 of 44
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 8 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2023.08.02 | Round 8: Johan Op den Dries - Chiel Koster | 2023.08.02 Johan Op den Dries | 0 | 84.40% | 1. e4 c5 2. Nc3 Nc6 3. f4 e6 | ||
| 2023.08.01 | Round 7: Chiel Koster - Tjark Vos | 2023.08.01 Tjark Vos | 0 | 80.80% | 1. e4 e5 2. Bc4 Nf6 3. d3 c6 | ||
| 2023.07.31 | Round 6: Rick Duijker - Chiel Koster | 2023.07.31 Rick Duijker | 0 | 89.70% | 1. g3 c5 2. Nf3 Nc6 3. Bg2 e5 | ||
| 2023.07.29 | Round 5: Chiel Koster - Jakob Weidemann | 2023.07.29 Jakob Weidemann | 1 | 89.40% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | ||
| 2023.07.28 | Round 4: Sascha Kurt - Chiel Koster | 2023.07.28 Sascha Kurt | ½ | 90.00% | 1. e4 c5 2. a3 Nc6 3. b4 e5 | ||
| 2023.07.27 | Round 3: Chiel Koster - Eelke De Boer | 2023.07.27 Eelke De Boer | 0 | 89.00% | 1. b4 e5 2. Bb2 f6 3. a3 d5 | ||
| 2023.07.26 | Round 2: William Shakhverdian - Chiel Koster | 2023.07.26 William Shakhverdian | 1 | 93.10% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | ||
| 2023.07.25 | Round 1: Chiel Koster - Nick Maatman | 2023.07.25 Nick Maatman | 0 | 92.50% | 1. e4 e6 2. Nf3 d5 3. exd5 exd5 |