1st Championship of the USSR Draughts Composition Federation [3], 1991
Other thematic variants of this Problem, please, see below:
Thematic variant: 1. 01-12 04x22 2. 27x18 36x27 3. 12x16 26x43 4. 16x35 45-23 5. 35-40 23x45 6. 06-01