Bert Duijker
NED · FIDE ID 1025015 · 18 tournament games since 2023
Standard
1866
#2436 in NED (active)
Rapid
1925
#425 in NED (active)
Blitz
–
Unrated
Score
28%
2 W · 6 D · 10 L
Opp. avg
1982
Last 18 games
Last game
2026-08-21
23. Rheinland-Pfalz Senioren Open
Prep summary
- As White: 1.Nf3 in 100% of games (scores 30%).
- Against 1.e4: 1...g6 in 4 of 4 games (Modern Defense), scoring 38%.
- Drawish: 33% of games end in a draw.
Based on 18 over-the-board games. 10 with White (30%), 8 with Black (25%).
Openings as White
First move
| 1.Nf3 | 10 | 30% |
Most played
| Opening | Games | Score |
|---|---|---|
| King's Indian Defense: Fianchetto Variation, Classical Variation | 1 | 0% |
| English Opening: Symmetrical Variation | 1 | 100% |
| English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | 1 | 50% |
| Slav Defense: Quiet Variation, Schallopp Defense | 1 | 0% |
| Catalan Opening: Closed | 1 | 0% |
Openings as Black
Against 1.e4 (4 games)
| 1...g6 Modern Defense | 4 | 38% |
Against 1.d4 (1 game)
| 1...g6 Queen's Pawn Game | 1 | 0% |
Most played
| Opening | Games | Score |
|---|---|---|
| Modern Defense | 3 | 50% |
| English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | 1 | 50% |
| Nimzo-Larsen Attack: Indian Variation | 1 | 0% |
| Queen's Pawn Game: Modern Defense | 1 | 0% |
| Modern Defense: Pseudo-Austrian Attack | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-08-21 | Paul Stuemer (2003) 23. Rheinland-Pfalz Senioren Open | L |
| 2026-08-20 | Karl Brettschneider (1959) 23. Rheinland-Pfalz Senioren Open | ½ |
| 2026-08-18 | Yuri Boidman (2228) 23. Rheinland-Pfalz Senioren Open | L |
| 2025-08 | Wolfgang Schwab (1875) 22. RLP Senior Open | W |
| 2025-08 | George Bruziks (1970) 22. RLP Senior Open | ½ |
| 2025-08 | Bernd Schaefer (1977) 22. RLP Senior Open | ½ |
| 2025-08 | Michael Bohnstorff (1993) 22. RLP Senior Open | L |
| 2025-08 | Ewald Larem (2014) 22. RLP Senior Open | L |
| 2025-08 | Alexander Okrajek (2196) 22. RLP Senior Open | L |
| 2024-09-03 | Erich Siebenhaar (2087) 21st Rhineland-Palatinate Seniors Open | L |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.