
1) Chess problem
Found on
https://www.crosswordclues.com/clue/lacny

a theme in which defences a, b and c are answered by the mates A, B and C respectively in one phase of play and by B, C and A respectively in another.
Found on
http://en.wikipedia.org/wiki/Chess_problem_terminology

The Lacny or Lacny cycle is a chess problem theme named after Ľudovít Lačný, the first person to demonstrate the idea in 1949. It is an example of lines of play being cyclically related: in one phase of play, the Black defences a, b and c are answered by the White mates A, B and C respectively; in another phase, those same defences a, b and c ...
Found on
http://en.wikipedia.org/wiki/Lacny
No exact match found.