### Kuromasu by Michael Tang

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or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the linex mode where left click+drag draws lines and right click marks X’s)

Theme: A Tale of Two Cities

Author/Opus: This is the 8th puzzle from guest contributor Michael Tang.

Rules: Shade some empty cells black so that each number indicates the total count of white cells connected vertically and horizontally to that number including the numbered cell itself. Black cells cannot share an edge, and all white cells must belong to a single connected group.

Also see this example:

Difficulty: 3 stars

Time Standards (highlight to view): Grandmaster = 2:45, Master = 4:30, Expert = 9:00

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

• Menderbug says:

4:11, nice puzzle 🙂

• Chandrachud says:

Lot of nice typical kuromasu deductions … good puzzle.

Prediction for second part : Xhebggb

• sudgy says:

My prediction: Vg jvyy or pnir

• marred88 says:

Spoiler: jryy, V nyernql fbyirq vg nf Pnir

• Damon F. says:

Fcrag n juvyr jbexvat ng guvf nf n xhebggb orsber V ernq vg jnf n pnir. Uneq gb gryy vs vg’f n uneq frpbaqnel chmmyr be lbh’er onexvat hc gur jebat gerr. Fgvyy sha gb gel gb penpx vg gubhtu.

• R says:

Loved it

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