Puzzle 423802:
Puzzle 423802:
GM Ian Nepomniachtchi (2718) - GM Alexey Dreev (2698)
19th TCh-RUS 2012 Sochi RUS (2), 2012.04.10 Nepomniachtchi - Dreev, Sochi 2012
19th TCh-RUS 2012 Sochi RUS (2), 2012.04.10 Nepomniachtchi - Dreev, Sochi 2012