### Heyawake by Prasanna Seshadri

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)

Theme: Winner is You

Author/Opus: This is the 226th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Shade some cells black so that all remaining white cells are connected as part of a single connected group; shaded cells cannot share an edge. No unbroken sequence of white cells in any row or column can cross two thick boundaries. A number in a region indicates the number of shaded cells in that region. Regions with no number may have any number of shaded cells. Cells with numbers can be shaded over.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 3:45, Master = 7:30, Expert = 15:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for other shading puzzles. More Heyawake puzzles are in Shading Variety Collection by Prasanna Seshadri.

• M says:

I am confused by the instructions. Do we also need to add edges to turn the board into disjoint areas? Or are those floating edges there for cosmetic reason only?

• drsudoku says:

Floating edges count as bold lines that cannot be crossed twice in a straight direction by consecutive white cells. If a floating edge does not form a closed wall with other parts of its region, then it does not create a separate region. This puzzle has 11 regions (9 4×4 boxes, with interior of R and O also being regions).

• puzzleudo says:

Great Heyawake puzzle! Now I’m a winner.

This site uses Akismet to reduce spam. Learn how your comment data is processed.