This genre is an original invention based off of Heyawake. If you’re already familiar with the rules of Heyawawke, this puzzle just extends them to lines that are not horizontal or vertical.
Rules of Heyacrazy:
Example:
Heyacrazy: Crosses
Heyacrazy: Forks
Heyacrazy: LMI
Heyacrazy: Rebound
Heyacrazy: No Diagonals
Heyacrazy: Empty
Heyacrazy: Dissection
Isometric Heyacrazy: Diode – in this puzzle, the grid is actually a folded surface. “Straight lines” are those that would be straight when that section of the grid is unfolded.
Heyacrazier: Big Three – in this puzzle, the rule about “crossing two walls” instead bans lines that cross three walls.
Toroidal Heyacrazy: Rainstorm – in this puzzle, the grid wraps around. The red lines mark the point where this happens, but otherwise have no effect. Nine copies of the grid are provided for your convenience.