Cross the Streams (Arbitrary Lies) by Grant Fikes
or solve online (using our beta test of Penpa-Edit tools)
Theme: Logical
Author/Opus: This is the 123rd puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Variation of Cross the Streams rules. Some groups of outside clues are lying and refer to the white cells in that row/column, not the black cells. It is up to you to determine which clue groups are lies. (It is possible for a clue group to be true for both the white and black cells in that row/column.)
Answer String: Enter the length in cells of each of the black segments from top to bottom for the marked columns in the two grids, going in order from A to B to C to D and separating each entry with a comma.
Time Standards (highlight to view): Grandmaster = 5:30, Master = 9:00, Expert = 18:00
Solution: PDF
Note: Follow this link for regular Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.
I like the number of rows that ended up being true for both black and white.
05:57.
Impressive construction, a satisfying solve.