Puzzle 471:
Puzzle 471:
Lev Vashchenko (1469) - Aleksandr Deryagin (1770)
74th ch-Urals 2016 Khanty-Mansiysk RUS, 2016.03.28 Vashchenko - Deryagin, Khanty-Mansiysk 2016
74th ch-Urals 2016 Khanty-Mansiysk RUS, 2016.03.28 Vashchenko - Deryagin, Khanty-Mansiysk 2016