Siegmund Kolthoff Full name Siegmund Kolthoff Born 1958 (age 67) Place of birth Federation Germany Profiles #12595 World Ranking 2128 Classical 2059 Rapid Rating Bio Most Played Openings White Pieces Dutch Defense (3 games) Queen's Pawn Opening: Torre Attack (1 games) Queen's Indian Defense: Fianchetto, Nimzowitsch Variation, Quiet, Check Variation, Intermezzo Line (1 games) Alapin Sicilian Defense (1 games) Indian Game: Spielmann-Indian, Pseudo-Benko Variation (1 games) Black Pieces King's Indian Attack: Yugoslav Variation (2 games) Petrov's Defense: Classical Attack (1 games) English Opening: Neo-Catalan Defense Declined (1 games) Petrov's Defense: Three Knights Game (1 games) Catalan Opening (1 games) Games Players Result Moves Year Siegmund Kolthoff (2121) Dr Frank Belke (2235) ½-½ 9 2025 Harald Schneider-Zinner (2327) Siegmund Kolthoff (2125) 1-0 57 2025 Ingo Cordts (2225) Siegmund Kolthoff (2083) ½-½ 19 2024 Markus Lammers (2336) Siegmund Kolthoff (2055) 1-0 52 2023 Thomas Hoefelsauer (2354) Siegmund Kolthoff (2036) 1-0 38 2019 Dmitry Stets (2391) Siegmund Kolthoff (2046) 1-0 45 2019 Vitaliy Promyshlyanskiy (2288) Siegmund Kolthoff (1999) ½-½ 33 2018 Siegmund Kolthoff (2122) Liu Guanchu (2424) 0-1 16 2017 Zdenko Kozul (2616) Siegmund Kolthoff (2090) 1-0 42 2017 Siegmund Kolthoff (2085) Mads Boe (2310) ½-½ 70 2016 Show All Games