Draw vines to connect all grape, i.e. grey hexagons to stems, i.e. black circles, with the same symbol. The vine can branch only at triangular cells and can only start in a single direction from a stem. Every white cell must contain part of a vine. Vines must end on a grape, i.e. no dead ends.
(Rules and example from WPC 2017 IB)
History of the puzzle
Appearances in the past WPCs
- WPC 2017/Round 18 by Prasanna Seshadri and Ashish Kumar