IM Jean-Rene Koch Full name Jean-Rene Koch Born 1970 (age 55) Place of birth Federation France Profiles #1231 World Ranking 2433 Classical Rating Bio Most Played Openings White Pieces Sicilian Defense: Open, Classical, Anti-Sozin Variation (15 games) Sicilian Defense: Taimanov, Bastrikov Variation (10 games) French Defense: King's Indian Attack (10 games) Alapin Sicilian Defense (8 games) Caro-Kann Defense: Accelerated Panov, Modern Variation (8 games) Black Pieces Alapin Sicilian Defense (14 games) Petrov's Defense: Classical Attack, Mason-Showalter Variation (13 games) Sicilian Defense: Open, Dragon, Main Line (9 games) Réti Opening: Dutch Variation (8 games) English Opening: Anglo-Dutch Defense (8 games) Games Players Result Moves Year Jean-Rene Koch (2441) Jerome Mendeiros (2097) 1-0 64 2022 Jean-Rene Koch (2441) Charly Rouler (2346) 1-0 37 2022 Jean-Rene Koch (2441) Emile Roubert (2027) 1-0 41 2022 Jean-Rene Koch (2441) Floryan Eugene (2373) 0-1 36 2022 Jean-Rene Koch (2441) Hugo Caille (2159) ½-½ 21 2022 Etienne Bacrot (2641) Jean-Rene Koch (2441) 1-0 51 2022 Quentin Loiseau (2442) Jean-Rene Koch (2441) 1-0 45 2022 Gabriel Flom (2428) Jean-Rene Koch (2441) 1-0 48 2022 Marc Andria Maurizzi (2490) Jean-Rene Koch (2441) ½-½ 38 2022 Jean-Rene Koch (2465) Karl Johan Ribbegren (2209) 1-0 29 2019 Show All Games