PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a shape/star placement mode and linex mode where left click+drag draws lines and right click marks X’s)

Theme: Relay of Logic

Author/Opus: This is the 28th puzzle from our contributing puzzlemaster Prasanna Seshadri.

Rules: Standard Star Battle rules (ignore the shading). Then turn every star in a gray region into a black circle and every star in a white region into a white circle, and solve again as a standard Masyu puzzle. Ignore the region boundaries when drawing the Masyu loop.

Answer String: Enter the length in cells of the horizontal loop segments from left to right in the marked rows, starting at the top. If the loop only has vertical segments in the marked row, enter 0. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other classic Star Battles and this link for other classic Masyu.

PDF

or solve online (using our beta test of Penpa-Edit tools)

This is a “Twisted Tuesday” puzzle variation.

Theme: None

Rules: Variation of Star Battle. There are still two stars per row and column, but instead of regions there is an irregular grid. Stars cannot be placed in adjacent cells that share an edge or corner.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears (gray numbers at the top of the puzzle here are given to help). Enter these numbers as a single string with no separators.

Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:30, Expert = 5:00

Solution: PDF

PDF

or solve online (using our beta test of Penpa-Edit tools)

This is a “Franken-Friday” puzzle variation.

Theme: Corrupted Regions

Rules: Variation of standard Star Battle rules. Two stars per row and column, but no region has exactly two stars. Each region must contain some number of stars other than 2, including possibly no stars at all.

Answer String: For each row from top to bottom, enter the number of the first column from the left where a star appears. Enter these numbers as a single string with no separators.

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

Solution: PDF