This downside, by V. Tchepizhni, received fifth prize within the Bohemian Centenary Tourney of 1962. It’s 4 puzzles in a single:
(a) The diagrammed place.
(b) Flip the board 90 levels clockwise.
(c) Flip the board 180 levels.
(d) Flip the board 270 levels clockwise.
Every of the ensuing positions presents a helpmate in two: Black strikes first, then White, then Black, then White, the 2 sides cooperating to succeed in a place by which Black is checkmated. What are the options?