Logic Puzzles #23-25 - Internal Conflicts

 Internal Conflicts

On puzz.link, regions are made of individual edges, each separating two different cells. However, using those individual edges, it is possible to create internal borders that do not form regions. These three puzzles are using this "exploit", which result in some interesting consequence stemming from error-checking.

Due to the subtleties of internal border, the rules have been modified to encompensate that. Changed sections are in bold.

Country Road

Rules and link

Draw a non-intersecting loop through the centers of some cells which passes through exactly two bold borders in, or on the exterior of each region. A number in a region represents how many cells in the region are visited by the loop. Orthogonally adjacent cells across a bold border may not both be unused.

You can solve this puzzle here using puzz.link's interface

Heyawake

Rules and link

Shade some cells so that no two shaded cells are orthogonally adjacent and the remaining unshaded cells form one orthogonally connected area. Numbered regions must contain the indicated amount of shaded cells. A line of consecutive unshaded cells may not cross more than one bold border.

You can solve this puzzle here using puzz.link's interface

Nanro

Rules and link

Place a number into some cells so that all cells with numbers form one orthogonally connected area and no 2x2 region is entirely numbered. Each region must contain at least one numbered cell, and every number in the region must be equal to how many numbered cells the region contains. Two cells containing the same number may not share a bold border.

You can solve this puzzle here using puzz.link's interface