Cross the Streams (Even Rows/Columns) by Grant Fikes
or solve online (using our beta test of Penpa-Edit tools)
Theme: Logical
Author/Opus: This is the 223rd puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Cross the Streams rules. Also, an even number of cells must be shaded in each row and in each column.
Answer String: Enter the length in cells of each of the black segments from top to bottom for the marked columns, going in order from A to B to C to D and separating each entry with a comma.
Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:15, Expert = 10:30.
Solution: PDF
Note: Follow this link for variations of Cross the Streams and this link for other classic Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.
21:34