85th Noteboom Open

Feb 20, 2026 – Feb 22, 2026·Leiden NED

36

Games

34

Players

2295

Avg Rating

Games

R2.1GMPijpers, Arthur(2475)1-0FMCernov, Henrik(2187)B40Sicilian Defense: Pin Variation→R2.2Van Doren, Bas(2170)0-1IMDe Winter, Arthur(2449)A07King's Indian Attack→R2.3FMHaug, Havard(2412)1-0Jellema, Pieter(2173)B13Caro-Kann Defense: Panov Attack→R2.4Hummel, Paul(2147)0-1IMO`Gorman, Tom(2391)D02Queen's Pawn Game: Anti-Torre→R2.5FMOstensen, Nicolai Maxime(2380)1-0FMHeemskerk, Wim(2158)C07French Defense: Tarrasch Variation, Open System→R2.6Boeren, Jurriaan(2132)½-½FMLiu, Yi(2372)C01French Defense: Exchange Variation→R1.1GMVrolijk, Liam(2537)½-½Van Harten, Wout(1986)D34Tarrasch Defense: Classical Variation→R1.2FMBecx, Cesar(2078)0-1GMPijpers, Arthur(2475)A03Bird Opening: Sturm Gambit→R1.3IMDe Winter, Arthur(2449)1-0Ochtman, Henk(2069)B06Modern Defense→R1.4Mensing, Adrian(2035)0-1FMHaug, Havard(2412)E01Catalan Opening: Closed→R1.5IMO`Gorman, Tom(2391)1-0Aarts, Joaquin(2037)A04Zukertort Opening→R1.6Van t Hoff, Tom(2022)0-1FMOstensen, Nicolai Maxime(2380)A30English Opening: Wing Gambit→R3.1Grooten, Tommy(2324)½-½GMPijpers, Arthur(2475)D85Grünfeld Defense: Exchange Variation→R3.2IMDe Winter, Arthur(2449)½-½FMMostertman, Milan(2228)C01French Defense: Exchange Variation→R3.3Van Batenburg, Mees(2203)0-1FMHaug, Havard(2412)B90Sicilian Defense: Najdorf Variation→R3.4IMO`Gorman, Tom(2391)1-0Bruggink, Tycho(2088)B51Sicilian Defense: Moscow Variation→R3.5FMVan Ketel, Raoul(2182)1-0FMOstensen, Nicolai Maxime(2380)A53Old Indian Defense→R3.6Groenewoud, Joel(2029)0-1FMRitzerveld, Noah(2236)C86Ruy Lopez: Closed, Worrall Attack→R4.1FMHaug, Havard(2412)½-½FMVan Ketel, Raoul(2182)A40Zaire Defense→R4.2FMRitzerveld, Noah(2236)½-½IMO`Gorman, Tom(2391)B72Sicilian Defense: Dragon Variation→R4.3FMTabak, Stefan(2040)½-½FMSmeets, Kobe(2315)C47Four Knights Game→R4.4GMPijpers, Arthur(2475)1-0Hommes, Elmar(2113)B23Sicilian Defense: Closed→R4.5Gijsen, William(2204)0-1IMDe Winter, Arthur(2449)B56Sicilian Defense: Venice Attack→R4.6IMAdmiraal, Miguoel(2456)½-½GMVrolijk, Liam(2537)A47Marienbad System→R5.1FMSmeets, Kobe(2315)1-0FMLabruyere, Roger(2204)B40Sicilian Defense: Pin Variation→R5.2FMVan Ketel, Raoul(2182)½-½FMRitzerveld, Noah(2236)D10Slav Defense→R5.3IMO`Gorman, Tom(2391)0-1GMPijpers, Arthur(2475)B30Sicilian Defense: Old Sicilian→R5.4IMDe Winter, Arthur(2449)0-1FMHaug, Havard(2412)C02French Defense: Advance Variation→R5.5Grooten, Tommy(2324)1-0FMMostertman, Milan(2228)A13English Opening: Neo-Catalan→R5.6GMVrolijk, Liam(2537)½-½FMKazarjan, Gachatur(2226)D37Queen's Gambit Declined: Harrwitz Attack→R6.1GMPijpers, Arthur(2475)½-½FMSmeets, Kobe(2315)B69Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack→R6.2FMHaug, Havard(2412)½-½Grooten, Tommy(2324)A48London System→R6.3FMRitzerveld, Noah(2236)0-1FMLiu, Yi(2372)C02French Defense: Advance Variation→R6.4IMAdmiraal, Miguoel(2456)1-0FMVan Ketel, Raoul(2182)A40Zaire Defense→R6.5Hummel, Paul(2147)1-0IMDe Winter, Arthur(2449)D16Slav Defense: Alapin Variation→R6.6Cheung, Jan(1994)½-½IMO`Gorman, Tom(2391)D30Queen's Gambit Declined→

Players

🇳🇱GMVrolijk, Liam(2537)🇳🇱GMPijpers, Arthur(2475)🇳🇱IMAdmiraal, Miguoel(2456)🇳🇱IMDe Winter, Arthur(2449)🇳🇴FMHaug, Havard(2412)🇮🇪IMO`Gorman, Tom(2391)🇳🇴FMOstensen, Nicolai Maxime(2380)🇦🇺FMLiu, Yi(2372)🇳🇱Grooten, Tommy(2324)🇳🇱FMSmeets, Kobe(2315)🇳🇱FMRitzerveld, Noah(2236)🇳🇱FMMostertman, Milan(2228)🇳🇱FMKazarjan, Gachatur(2226)🇳🇱Gijsen, William(2204)🇳🇱FMLabruyere, Roger(2204)🇳🇱Van Batenburg, Mees(2203)🇩🇪FMCernov, Henrik(2187)🇳🇱FMVan Ketel, Raoul(2182)🇳🇱Jellema, Pieter(2173)🇳🇱Van Doren, Bas(2170)🇳🇱FMHeemskerk, Wim(2158)🇳🇱Hummel, Paul(2147)🇳🇱Boeren, Jurriaan(2132)🇳🇱Hommes, Elmar(2113)🇳🇱Bruggink, Tycho(2088)🇳🇱FMBecx, Cesar(2078)🇳🇱Ochtman, Henk(2069)🇳🇱FMTabak, Stefan(2040)🇳🇱Aarts, Joaquin(2037)🇳🇱Mensing, Adrian(2035)🇳🇱Groenewoud, Joel(2029)🇳🇱Van t Hoff, Tom(2022)🇳🇱Cheung, Jan(1994)🇳🇱Van Harten, Wout(1986)