Player profile
Duijker, Bert
Dossier
18 of 18 games analyzed.
Accuracy: 76.3%
Opened Nf3: 1/1
Same-side castling: 3Castled kingside: 2Did not castle: 1Castled queenside: 1
Fianchettoed kingside: 3Played in the center: 2Played on the kingside: 1Played on the queenside: 1
Active pieces: 3Missed tactics: 3Kept the bishop pair: 2Space advantage: 2Isolated pawn: 2Backward pawn: 2Initiated exchanges: 1Sacrificed material: 1Avoided exchanges: 1
Openings
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As White 1 game 0W 0D 1L
King's Indian Defense 1 game 0W 0D 1L
Fianchetto Variation 1 game 0W 0D 1L
Classical Main Line
1 game
0W
0D
1L
As Black 3 games 0W 1D 2L
English Opening 1 game 0W 1D 0L
Symmetrical Variation 1 game 0W 1D 0L
Ultra-Symmetrical Variation
1 game
0W
1D
0L
Modern Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Nimzo-Larsen Attack 1 game 0W 0D 1L
Indian Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 88
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 18 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.08.21 | Round 4: Duijker, Bert - Stuemer, Paul | 4.20 | 2026.08.21 Stuemer, Paul (4635841) (2003) | 0 | 69.90% | 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 | |
| 2026.08.20 | Round 3: Brettschneider, Karl - Duijker, Bert | 3.21 | 2026.08.20 Brettschneider, Karl (16229029) (1959) | ½ | 83.80% | 1. c4 c5 2. Nc3 g6 3. g3 Bg7 | |
| 2026.08.18 | Round 1: Boidman, Yuri - Duijker, Bert | 1.5 | 2026.08.18 Boidman, Yuri (4643992) (2228) | 0 | 68.10% | 1. e4 g6 2. Nc3 Bg7 3. Bc4 c5 | |
| 2024.09.03 | Round 1: Siebenhaar, Erich - Duijker, Bert | 1.7 | 2024.09.03 Siebenhaar, Erich (4675908) (2087) | 0 | 83.30% | 1. b3 Nf6 2. Bb2 e6 3. e3 d5 | |
| 2023.09.13 | 20. RLP-Senioren-Open | 9 | 2023.09.13 Janssens, Manu (217514) (1772) | ½ | 92.30% | 1. Nf3 f5 2. d4 Nf6 3. c4 g6 | |
| 2023.09.12 | 20. RLP-Senioren-Open | 8 | 2023.09.12 Platten, Herbert (1270525) (1691) | 0 | 87.10% | 1. d4 g6 2. c4 Bg7 3. Nc3 c5 | |
| 2023.09.11 | 20. RLP-Senioren-Open | 7 | 2023.09.11 Schulze Forsthoevel, Manfred (16285409) (1578) | ½ | 89.60% | 1. Nf3 f5 2. d4 Nf6 3. c4 d6 | |
| 2023.09.10 | 20. RLP-Senioren-Open | 6 | 2023.09.10 Goris, Ton (1003526) (1898) | 0 | 84.00% | 1. e4 g6 2. d4 Bg7 3. Nc3 d6 | |
| 2023.09.09 | 20. RLP-Senioren-Open | 5 | 2023.09.09 Siebenhaar, Erich (4675908) (2056) | 0 | 79.40% | 1. Nf3 g6 2. c4 Bg7 3. d4 d6 | |
| 2023.09.08 | 20. RLP-Senioren-Open | 4 | 2023.09.08 Vautrin, Stefan (4627547) (2113) | 0 | 86.50% | 1. b3 d5 2. Nf3 c5 3. Bb2 e6 | |
| 2023.09.07 | 20. RLP-Senioren-Open | 3 | 2023.09.07 Riesenbeck, Juergen (24637084) (2097) | ½ | 94.10% | 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 | |
| 2023.09.05 | 20. RLP-Senioren-Open | 1 | 2023.09.05 Geyer, Bernhard (4649958) (2164) | 1 | 88.30% | 1. e4 g6 2. d4 Bg7 3. c4 c5 | |
| Round 9: Duijker, Bert - Schwab, Wolfgang | 9.27 | Schwab, Wolfgang (24694037) (1875) | 1 | 91.70% | 1. Nf3 c5 2. c4 e6 3. d4 cxd4 | ||
| Round 8: Bruziks, George - Duijker, Bert | 8.25 | Bruziks, George (24665568) (1970) | ½ | 92.50% | 1. e4 g6 2. d4 Bg7 3. Nf3 d6 | ||
| Round 7: Duijker, Bert - Schaefer, Bernd | 7.22 | Schaefer, Bernd (34601317) (1977) | ½ | 94.30% | 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 | ||
| Round 5: Duijker, Bert - Bohnstorff, Michael | 5.20 | Bohnstorff, Michael (4616936) (1993) | 0 | 88.40% | 1. Nf3 d5 2. d4 Nf6 3. c4 c6 | ||
| Round 4: Duijker, Bert - Larem, Ewald | 4.16 | Larem, Ewald (16285816) (2014) | 0 | 75.20% | 1. Nf3 d5 2. d4 Nf6 3. c4 e6 | ||
| Round 1: Duijker, Bert - Okrajek, Alexander | 1.5 | Okrajek, Alexander (4612221) (2196) | 0 | 86.60% | 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 |