Puzzle 278020:
Puzzle 278020:
Boris Rytov (2200) - Nikolai M Mishuchkov (2410)
URS-ch sf Daugavpils, 1978 Boris Rytov (2200) - Nikolai M Mishuchkov (2410)
URS-ch sf Daugavpils, 1978
URS-ch sf Daugavpils, 1978 Boris Rytov (2200) - Nikolai M Mishuchkov (2410)
URS-ch sf Daugavpils, 1978