ChessBinder

Chiel Koster

Chiel Koster has a rating of 2014 in the most recent games stored here. ChessBinder has 47 games of Chiel Koster, played from May 2022 to 14 September 2025. The most recent is a win with Black against Daniel GH Gallagher in Round 5 of Alma Mater University Chess Tournament 2025, on 14 September 2025.

Games from the events ChessBinder has covered since 4 October 2026, and from the Lichess broadcast database since 5 January 2020.

In these games

Games
47
Won
18
Drawn
16
Lost
13

Games

  1. Won0–1as Blackagainst Gallagher, Daniel GH2251Alma Mater University Chess Tournament 2025, Round 5 · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto VariationReplay the game against Gallagher, Daniel GH
  2. Won1–0as Whiteagainst Wang, Jake1968Alma Mater University Chess Tournament 2025, Round 4 · Sicilian Defense: Kan Variation, Swiss Cheese VariationReplay the game against Wang, Jake
  3. Lost1–0as Blackagainst Aydogdu, Cagatay1933Alma Mater University Chess Tournament 2025, Round 3 · English Opening: Symmetrical Variation, Fianchetto VariationReplay the game against Aydogdu, Cagatay
  4. Lost1–0as BlackagainstIM Seel, Christian, Dr.2477Alma Mater University Chess Tournament 2025, Round 1 · Queen's Pawn Game: London System, with e6Replay the game against Seel, Christian, Dr.
  5. Won1–0as Whiteagainst Jordan, Felix1808Alma Mater University Chess Tournament 2025, Round 2 · Neo-Grünfeld Defense: Classical VariationReplay the game against Jordan, Felix
  6. Drew½–½as WhiteagainstFM Kurt, Sascha231217th BPB Limburg Open 2025 | Open, Round 5 · English Opening: King's English Variation, Three Knights SystemReplay the game against Kurt, Sascha
  7. Lost1–0as BlackagainstFM Barzen, Pascal234817th BPB Limburg Open 2025 | Open, Round 3 · Sicilian Defense: Old SicilianReplay the game against Barzen, Pascal
  8. Won1–0as Whiteagainst De Vries, Emma1995WLC Weekend Tournament 2025 | Group A, Round 2 · Neo-Grünfeld Defense: Ultra-Delayed Exchange VariationReplay the game against De Vries, Emma
  9. Drew½–½as Whiteagainst Kazarjan, Gachatur2211WLC Weekend Tournament 2025 | Group A, Round 5 · Tarrasch Defense: Classical VariationReplay the game against Kazarjan, Gachatur
  10. Drew½–½as BlackagainstFM Ritzerveld, Noah2272WLC Weekend Tournament 2025 | Group A, Round 6 · Sicilian Defense: Lasker-Pelikan VariationReplay the game against Ritzerveld, Noah
  11. Drew½–½as Blackagainst Blijlevens, Pim1890WLC Weekend Tournament 2025 | Group A, Round 1 · Trompowsky AttackReplay the game against Blijlevens, Pim
  12. Won0–1as Blackagainst Vennix, Tom1971WLC Weekend Tournament 2025 | Group A, Round 3 · English Opening: King's English Variation, Taimanov VariationReplay the game against Vennix, Tom
  13. Drew½–½as Whiteagainst Grooten, Tommy2146Dutch Open Championship 2024, Round 9 · Sicilian Defense: Scheveningen Variation, Delayed Keres AttackReplay the game against Grooten, Tommy
  14. Drew½–½as Blackagainst Zwirs, Jasper2088Dutch Open Championship 2024, Round 8 · Rapport-Jobava SystemReplay the game against Zwirs, Jasper
  15. Lost0–1as WhiteagainstIM Buckels, Valentin2478Dutch Open Championship 2024, Round 7 · Caro-Kann DefenseReplay the game against Buckels, Valentin
  16. Won1–0as Whiteagainst Smit, Manuel1969Dutch Open Championship 2024, Round 5 · English Opening: Anglo-Indian Defense, King's Indian FormationReplay the game against Smit, Manuel
  17. Lost0–1as Whiteagainst Shakhverdian, William2157Dutch Open Championship 2024, Round 3 · King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance LineReplay the game against Shakhverdian, William
  18. Drew½–½as Blackagainst Van Kuijk, Vadim2131Dutch Open Championship 2024, Round 4 · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk VariationReplay the game against Van Kuijk, Vadim
  19. Won0–1as BlackagainstFM Stillger, Bernhard2263Dutch Open Championship 2024, Round 6 · King's Indian AttackReplay the game against Stillger, Bernhard
  20. Drew½–½as WhiteagainstIM Grooten, Herman2211Dutch Open Championship 2024, Round 1 · Caro-Kann DefenseReplay the game against Grooten, Herman
  21. Drew½–½as Blackagainst Ritzerveld, Noah2181Dutch Open Championship 2024, Round 2 · French Defense: Rubinstein Variation, Blackburne DefenseReplay the game against Ritzerveld, Noah
  22. Lost0–1as Whiteagainst Baselmans, Sam2220WLC Weekend Tournament & NBSB Championship 2024 | Group A, Round 6 · Italian Game: Two Knights Defense, Modern Bishop's OpeningReplay the game against Baselmans, Sam
  23. Won0–1as Blackagainst Coronel, Joshua2055WLC Weekend Tournament & NBSB Championship 2024 | Group A, Round 5 · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto VariationReplay the game against Coronel, Joshua
  24. Won0–1as Blackagainst Matthijssen, Mitchell1893WLC Weekend Tournament & NBSB Championship 2024 | Group A, Round 3 · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk VariationReplay the game against Matthijssen, Mitchell
  25. Drew½–½as Whiteagainst Kools, Thomas2065WLC Weekend Tournament & NBSB Championship 2024 | Group A, Round 4 · English Opening: King's English Variation, Taimanov VariationReplay the game against Kools, Thomas
  26. Lost0–1as WhiteagainstGM Beerdsen, Thomas2501WLC Weekend Tournament & NBSB Championship 2024 | Group A, Round 2 · Caro-Kann DefenseReplay the game against Beerdsen, Thomas
  27. Won0–1as Blackagainst Van Happen, Niels1692WLC Weekend Tournament & NBSB Championship 2024 | Group A, Round 1 · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov VariationReplay the game against Van Happen, Niels
  28. Lost1–0as Blackagainst Johan Op den DriesThe Dutch Open Championship 2023, Round 8 · Sicilian Defense: Grand Prix AttackReplay the game against Johan Op den Dries
  29. Lost0–1as Whiteagainst Tjark VosThe Dutch Open Championship 2023, Round 7 · Bishop's Opening: Berlin DefenseReplay the game against Tjark Vos
  30. Lost1–0as Blackagainst Rick DuijkerThe Dutch Open Championship 2023, Round 6 · Hungarian Opening: Sicilian InvitationReplay the game against Rick Duijker
  31. Won1–0as Whiteagainst Jakob WeidemannThe Dutch Open Championship 2023, Round 5 · Sicilian Defense: Four Knights Variation, Cobra VariationReplay the game against Jakob Weidemann
  32. Drew½–½as Blackagainst Sascha KurtThe Dutch Open Championship 2023, Round 4 · Sicilian Defense: Mengarini VariationReplay the game against Sascha Kurt
  33. Lost0–1as Whiteagainst Eelke De BoerThe Dutch Open Championship 2023, Round 3 · Polish OpeningReplay the game against Eelke De Boer
  34. Won0–1as Blackagainst William ShakhverdianThe Dutch Open Championship 2023, Round 2 · Catalan Opening: Open DefenseReplay the game against William Shakhverdian
  35. Lost0–1as Whiteagainst Nick MaatmanThe Dutch Open Championship 2023, Round 1 · French Defense: Exchange VariationReplay the game against Nick Maatman
  36. Won1–0as Whiteagainst Sprangers, Remco2189WLC Weekend Tournament 2023, Round 5 · Sicilian Defense: Najdorf Variation, Adams AttackReplay the game against Sprangers, Remco
  37. Drew½–½as Blackagainst Bollen, Guus2156WLC Weekend Tournament 2023, Round 6 · King's Indian Defense: Fianchetto Variation, Panno VariationReplay the game against Bollen, Guus
  38. Won1–0as Whiteagainst Baselmans, Luuk2346WLC Weekend Tournament 2023, Round 3 · French Defense: Queen's KnightReplay the game against Baselmans, Luuk
  39. Won0–1as Blackagainst Koes, Richard1823WLC Weekend Tournament 2023, Round 2 · Sicilian Defense: Wing GambitReplay the game against Koes, Richard
  40. Lost1–0as Blackagainst Beerdsen, Thomas2519WLC Weekend Tournament 2023, Round 4 · Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld GambitReplay the game against Beerdsen, Thomas
  41. Won1–0as Whiteagainst Messaoudi, Nino1816WLC Weekend Tournament 2023, Round 1Replay the game against Messaoudi, Nino
  42. Won1–0as Whiteagainst Van Helvoort, Rob214212th WLC Weekend Tournament, Round 4 · Modern DefenseReplay the game against Van Helvoort, Rob
  43. Drew½–½as Blackagainst Roebers, Eline234312th WLC Weekend Tournament, Round 1 · Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk VariationReplay the game against Roebers, Eline
  44. Won0–1as Blackagainst Slagboom, Leandro211612th WLC Weekend Tournament, Round 5 · Indian Defense: Anti-Nimzo-IndianReplay the game against Slagboom, Leandro
  45. Drew½–½as Blackagainst van der Valk, Niklas217712th WLC Weekend Tournament, Round 3 · English Opening: King's English Variation, Four Knights Variation, Fianchetto LineReplay the game against van der Valk, Niklas
  46. Drew½–½as Whiteagainst Van Roon, Sjoerd223712th WLC Weekend Tournament, Round 6 · Sicilian Defense: Najdorf Variation, Adams AttackReplay the game against Van Roon, Sjoerd
  47. Drew½–½as Whiteagainst Kools, Jasper12th WLC Weekend Tournament, Round 2 · Sicilian Defense: Kan Variation, Polugaevsky VariationReplay the game against Kools, Jasper