Oleg Romanishin

(uk Олег Михайлович Романишин) Ukraininan Chess GM

5.Ne2 c5 6.a3 Ba5!? was dubbed the Romanishin–Psakhis Variation by Carsten Hansen[2] because Oleg Romanishin and Lev Psakhis were the two grandmasters who were primarily responsible for reviving the line and infusing it with new ideas. It can also arise via the move order 4.e3 c5 5.Ne2 b6 6.a3 Ba5. Black dares White to try and trap the bishop on a5, a challenge White usually takes up, but rarely successfully.