Willemsen, JasperFIDE ID 10793871Games0Wins0Draws1Losses0%ScorePeak rating1927Latest rating1927First seenJan 9, 2026Last seenJan 9, 2026Recent gamesDateWhiteResultBlackEventOpeningJan 9, 2026Poetsch1–0WillemsenPrague Open 2026 - A IM OpenCaro-Kann Defense: Advance Variation, Short Variation