Puzzle 110280:
Puzzle 110280:
GM R. Hovhannisyan (2600) - GM Nikita Vitiugov (2709)
13th EICC Plovdiv BUL, 2012.03.27 Hovhannisyan - Vitiugov, Plovdiv 2012
13th EICC Plovdiv BUL, 2012.03.27 Hovhannisyan - Vitiugov, Plovdiv 2012